PC) have this type.\n\n### .transfer(length, callback(error, data))\nPerform a transfer to read data from the endpoint.\n\nIf length is greater than maxPacketSize, libusb will automatically split the transfer in multiple packets, and you will receive one callback with all data once all packets are complete.\n\n`this` in the callback is the InEndpoint object.\n\n### .startPoll(nTransfers=3, transferSize=maxPacketSize)\nStart polling the endpoint.\n\nThe library will keep `nTransfers` transfers of size `transferSize` pending in\nthe kernel at all times to ensure continuous data flow. This is handled by the\nlibusb event thread, so it continues even if the Node v8 thread is busy. The\n`data` and `error` events are emitted as transfers complete.\n\n### .stopPoll(cb)\nStop polling.\n\nFurther data may still be received. The `end` event is emitted and the callback\nis called once all transfers have completed or canceled.\n\n### Event: data(data : Buffer)\nEmitted with data received by the polling transfers\n\n### Event: error(error)\nEmitted when polling encounters an error. All in flight transfers will be automatically canceled and no further polling will be done. You have to wait for the `end` event before you can start polling again.\n\n### Event: end\nEmitted when polling has been canceled\n\nOutEndpoint\n-----------\n\nEndpoints in the OUT direction (PC->device) have this type.\n\n### .transfer(data, callback(error))\nPerform a transfer to write `data` to the endpoint.\n\nIf length is greater than maxPacketSize, libusb will automatically split the transfer in multiple packets, and you will receive one callback once all packets are complete.\n\n`this` in the callback is the OutEndpoint object.\n\n### Event: error(error)\nEmitted when the stream encounters an error.\n\n### Event: end\nEmitted when the stream has been stopped and all pending requests have been completed.\n\nUsbDetection\n------------\n\n### usb.on('attach', function(device) { ... });\nAttaches a callback to plugging in a `device`.\n\n### usb.on('detach', function(device) { ... });\nAttaches a callback to unplugging a `device`.\n\n### usb.refHotplugEvents();\nRestore (re-reference) the hotplug events unreferenced by `unrefHotplugEvents()`\n\n### usb.unrefHotplugEvents();\nListening to events will prevent the process to exit. By calling this function, hotplug events will be unreferenced by the event loop, allowing the process to exit even when listening for the `attach` and `detach` events.\n\nDevelopment and testing\n=======================\n\nTo build from git:\n\n\tgit clone --recursive https://github.com/node-usb/node-usb.git\n\tcd node-usb\n\tnpm install\n\nTo execute the unit tests, [CoffeeScript](http://coffeescript.org) is required. Run\n\n\tnpm test\n\nSome tests require an [attached STM32F103 Microprocessor USB device with specific firmware](https://github.com/thegecko/node-usb-test-firmware).\n\n\tnpm run --silent full-test\n\tnpm run --silent valgrind\n\nLimitations\n===========\n\nDoes not support:\n\n - Configurations other than the default one\n - Isochronous transfers\n\nLicense\n=======\n\nMIT\n\nNote that the compiled Node extension includes Libusb, and is thus subject to the LGPL.\n# estree-walker\n\nSimple utility for walking an [ESTree](https://github.com/estree/estree)-compliant AST, such as one generated by [acorn](https://github.com/marijnh/acorn).\n\n## Installation\n\n```bash\nnpm i estree-walker\n```\n\n## Usage\n\n```js\nvar walk = require( 'estree-walker' ).walk;\nvar acorn = require( 'acorn' );\n\nast = acorn.parse( sourceCode, options ); // https://github.com/acornjs/acorn\n\nwalk( ast, {\n enter: function ( node, parent, prop, index ) {\n // some code happens\n },\n leave: function ( node, parent, prop, index ) {\n \t// some code happens\n }\n});\n```\n\nInside the `enter` function, calling `this.skip()` will prevent the node's children being walked, or the `leave` function (which is optional) being called.\n\nCall `this.replace(new_node)` in either `enter` or `leave` to replace the current node with a new one.\n\nCall `this.remove()` in either `enter` or `leave` to remove the current node.\n\n## Why not use estraverse?\n\nThe ESTree spec is evolving to accommodate ES6/7. I've had a couple of experiences where [estraverse](https://github.com/estools/estraverse) was unable to handle an AST generated by recent versions of acorn, because it hard-codes visitor keys.\n\nestree-walker, by contrast, simply enumerates a node's properties to find child nodes (and child lists of nodes), and is therefore resistant to spec changes. It's also much smaller. (The performance, if you're wondering, is basically identical.)\n\nNone of which should be taken as criticism of estraverse, which has more features and has been battle-tested in many more situations, and for which I'm very grateful.\n\n## License\n\nMIT\n# near-api-js\n\n[](https://travis-ci.com/near/near-api-js)\n[](https://gitpod.io/#https://github.com/near/near-api-js) \n\nA JavaScript/TypeScript library for development of DApps on the NEAR platform\n\n# Documentation\n\n[Read the TypeDoc API documentation](https://near.github.io/near-api-js/)\n\n---\n\n# Examples\n\n## [Quick Reference](https://github.com/near/near-api-js/blob/master/examples/quick-reference.md)\n_(Cheat sheet / quick reference)_\n\n## [Cookbook](https://github.com/near/near-api-js/blob/master/examples/cookbook/README.md)\n_(Common use cases / more complex examples)_\n\n---\n\n# Contribute to this library\n\n1. Install dependencies\n\n yarn\n\n2. Run continuous build with:\n\n yarn build -- -w\n\n# Publish\n\nPrepare `dist` version by running:\n\n yarn dist\n\nWhen publishing to npm use [np](https://github.com/sindresorhus/np).\n\n---\n\n# Integration Test\n\nStart the node by following instructions from [nearcore](https://github.com/nearprotocol/nearcore), then\n\n yarn test\n\nTests use sample contract from `near-hello` npm package, see https://github.com/nearprotocol/near-hello\n\n# Update error schema\n\nFollow next steps:\n\n1. [Change hash for the commit with errors in the nearcore](https://github.com/near/near-api-js/blob/master/gen_error_types.js#L7-L9)\n2. Fetch new schema: `node fetch_error_schema.js`\n3. `yarn build` to update `lib/**.js` files\n\n# License\n\nThis repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0).\nSee [LICENSE](LICENSE) and [LICENSE-APACHE](LICENSE-APACHE) for details.\n# end-of-stream\n\nA node module that calls a callback when a readable/writable/duplex stream has completed or failed.\n\n\tnpm install end-of-stream\n\n[](https://travis-ci.org/mafintosh/end-of-stream)\n\n## Usage\n\nSimply pass a stream and a callback to the `eos`.\nBoth legacy streams, streams2 and stream3 are supported.\n\n``` js\nvar eos = require('end-of-stream');\n\neos(readableStream, function(err) {\n // this will be set to the stream instance\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended', this === readableStream);\n});\n\neos(writableStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished', this === writableStream);\n});\n\neos(duplexStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended and finished', this === duplexStream);\n});\n\neos(duplexStream, {readable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished but might still be readable');\n});\n\neos(duplexStream, {writable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended but might still be writable');\n});\n\neos(readableStream, {error:false}, function(err) {\n\t// do not treat emit('error', err) as a end-of-stream\n});\n```\n\n## License\n\nMIT\n\n## Related\n\n`end-of-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# fast-glob\n\n> It's a very fast and efficient [glob][glob_definition] library for [Node.js][node_js].\n\nThis package provides methods for traversing the file system and returning pathnames that matched a defined set of a specified pattern according to the rules used by the Unix Bash shell with some simplifications, meanwhile results are returned in **arbitrary order**. Quick, simple, effective.\n\n## Table of Contents\n\n<details>\n<summary><strong>Details</strong></summary>\n\n* [Highlights](#highlights)\n* [Donation](#donation)\n* [Old and modern mode](#old-and-modern-mode)\n* [Pattern syntax](#pattern-syntax)\n * [Basic syntax](#basic-syntax)\n * [Advanced syntax](#advanced-syntax)\n* [Installation](#installation)\n* [API](#api)\n * [Asynchronous](#asynchronous)\n * [Synchronous](#synchronous)\n * [Stream](#stream)\n * [patterns](#patterns)\n * [[options]](#options)\n * [Helpers](#helpers)\n * [generateTasks](#generatetaskspatterns-options)\n * [isDynamicPattern](#isdynamicpatternpattern-options)\n * [escapePath](#escapepathpattern)\n* [Options](#options-3)\n * [Common](#common)\n * [concurrency](#concurrency)\n * [cwd](#cwd)\n * [deep](#deep)\n * [followSymbolicLinks](#followsymboliclinks)\n * [fs](#fs)\n * [ignore](#ignore)\n * [suppressErrors](#suppresserrors)\n * [throwErrorOnBrokenSymbolicLink](#throwerroronbrokensymboliclink)\n * [Output control](#output-control)\n * [absolute](#absolute)\n * [markDirectories](#markdirectories)\n * [objectMode](#objectmode)\n * [onlyDirectories](#onlydirectories)\n * [onlyFiles](#onlyfiles)\n * [stats](#stats)\n * [unique](#unique)\n * [Matching control](#matching-control)\n * [braceExpansion](#braceexpansion)\n * [caseSensitiveMatch](#casesensitivematch)\n * [dot](#dot)\n * [extglob](#extglob)\n * [globstar](#globstar)\n * [baseNameMatch](#basenamematch)\n* [FAQ](#faq)\n * [What is a static or dynamic pattern?](#what-is-a-static-or-dynamic-pattern)\n * [How to write patterns on Windows?](#how-to-write-patterns-on-windows)\n * [Why are parentheses match wrong?](#why-are-parentheses-match-wrong)\n * [How to exclude directory from reading?](#how-to-exclude-directory-from-reading)\n * [How to use UNC path?](#how-to-use-unc-path)\n * [Compatible with `node-glob`?](#compatible-with-node-glob)\n* [Benchmarks](#benchmarks)\n * [Server](#server)\n * [Nettop](#nettop)\n* [Changelog](#changelog)\n* [License](#license)\n\n</details>\n\n## Highlights\n\n* Fast. Probably the fastest.\n* Supports multiple and negative patterns.\n* Synchronous, Promise and Stream API.\n* Object mode. Can return more than just strings.\n* Error-tolerant.\n\n## Donation\n\nDo you like this project? Support it by donating, creating an issue or pull request.\n\n[][paypal_mrmlnc]\n\n## Old and modern mode\n\nThis package works in two modes, depending on the environment in which it is used.\n\n* **Old mode**. Node.js below 10.10 or when the [`stats`](#stats) option is *enabled*.\n* **Modern mode**. Node.js 10.10+ and the [`stats`](#stats) option is *disabled*.\n\nThe modern mode is faster. Learn more about the [internal mechanism][nodelib_fs_scandir_old_and_modern_modern].\n\n## Pattern syntax\n\n> :warning: Always use forward-slashes in glob expressions (patterns and [`ignore`](#ignore) option). Use backslashes for escaping characters.\n\nThere is more than one form of syntax: basic and advanced. Below is a brief overview of the supported features. Also pay attention to our [FAQ](#faq).\n\n> :book: This package uses a [`micromatch`][micromatch] as a library for pattern matching.\n\n### Basic syntax\n\n* An asterisk (`*`) — matches everything except slashes (path separators), hidden files (names starting with `.`).\n* A double star or globstar (`**`) — matches zero or more directories.\n* Question mark (`?`) – matches any single character except slashes (path separators).\n* Sequence (`[seq]`) — matches any character in sequence.\n\n> :book: A few additional words about the [basic matching behavior][picomatch_matching_behavior].\n\nSome examples:\n\n* `src/**/*.js` — matches all files in the `src` directory (any level of nesting) that have the `.js` extension.\n* `src/*.??` — matches all files in the `src` directory (only first level of nesting) that have a two-character extension.\n* `file-[01].js` — matches files: `file-0.js`, `file-1.js`.\n\n### Advanced syntax\n\n* [Escapes characters][micromatch_backslashes] (`\\\\`) — matching special characters (`$^*+?()[]`) as literals.\n* [POSIX character classes][picomatch_posix_brackets] (`[[:digit:]]`).\n* [Extended globs][micromatch_extglobs] (`?(pattern-list)`).\n* [Bash style brace expansions][micromatch_braces] (`{}`).\n* [Regexp character classes][micromatch_regex_character_classes] (`[1-5]`).\n* [Regex groups][regular_expressions_brackets] (`(a|b)`).\n\n> :book: A few additional words about the [advanced matching behavior][micromatch_extended_globbing].\n\nSome examples:\n\n* `src/**/*.{css,scss}` — matches all files in the `src` directory (any level of nesting) that have the `.css` or `.scss` extension.\n* `file-[[:digit:]].js` — matches files: `file-0.js`, `file-1.js`, …, `file-9.js`.\n* `file-{1..3}.js` — matches files: `file-1.js`, `file-2.js`, `file-3.js`.\n* `file-(1|2)` — matches files: `file-1.js`, `file-2.js`.\n\n## Installation\n\n```console\nnpm install fast-glob\n```\n\n## API\n\n### Asynchronous\n\n```js\nfg(patterns, [options])\n```\n\nReturns a `Promise` with an array of matching entries.\n\n```js\nconst fg = require('fast-glob');\n\nconst entries = await fg(['.editorconfig', '**/index.js'], { dot: true });\n\n// ['.editorconfig', 'services/index.js']\n```\n\n### Synchronous\n\n```js\nfg.sync(patterns, [options])\n```\n\nReturns an array of matching entries.\n\n```js\nconst fg = require('fast-glob');\n\nconst entries = fg.sync(['.editorconfig', '**/index.js'], { dot: true });\n\n// ['.editorconfig', 'services/index.js']\n```\n\n### Stream\n\n```js\nfg.stream(patterns, [options])\n```\n\nReturns a [`ReadableStream`][node_js_stream_readable_streams] when the `data` event will be emitted with matching entry.\n\n```js\nconst fg = require('fast-glob');\n\nconst stream = fg.stream(['.editorconfig', '**/index.js'], { dot: true });\n\nfor await (const entry of stream) {\n\t// .editorconfig\n\t// services/index.js\n}\n```\n\n#### patterns\n\n* Required: `true`\n* Type: `string | string[]`\n\nAny correct pattern(s).\n\n> :1234: [Pattern syntax](#pattern-syntax)\n>\n> :warning: This package does not respect the order of patterns. First, all the negative patterns are applied, and only then the positive patterns. If you want to get a certain order of records, use sorting or split calls.\n\n#### [options]\n\n* Required: `false`\n* Type: [`Options`](#options-3)\n\nSee [Options](#options-3) section.\n\n### Helpers\n\n#### `generateTasks(patterns, [options])`\n\nReturns the internal representation of patterns ([`Task`](./src/managers/tasks.ts) is a combining patterns by base directory).\n\n```js\nfg.generateTasks('*');\n\n[{\n base: '.', // Parent directory for all patterns inside this task\n dynamic: true, // Dynamic or static patterns are in this task\n patterns: ['*'],\n positive: ['*'],\n negative: []\n}]\n```\n\n##### patterns\n\n* Required: `true`\n* Type: `string | string[]`\n\nAny correct pattern(s).\n\n##### [options]\n\n* Required: `false`\n* Type: [`Options`](#options-3)\n\nSee [Options](#options-3) section.\n\n#### `isDynamicPattern(pattern, [options])`\n\nReturns `true` if the passed pattern is a dynamic pattern.\n\n> :1234: [What is a static or dynamic pattern?](#what-is-a-static-or-dynamic-pattern)\n\n```js\nfg.isDynamicPattern('*'); // true\nfg.isDynamicPattern('abc'); // false\n```\n\n##### pattern\n\n* Required: `true`\n* Type: `string`\n\nAny correct pattern.\n\n##### [options]\n\n* Required: `false`\n* Type: [`Options`](#options-3)\n\nSee [Options](#options-3) section.\n\n#### `escapePath(pattern)`\n\nReturns a path with escaped special characters (`*?|(){}[]`, `!` at the beginning of line, `@+!` before the opening parenthesis).\n\n```js\nfg.escapePath('!abc'); // \\\\!abc\nfg.escapePath('C:/Program Files (x86)'); // C:/Program Files \\\\(x86\\\\)\n```\n\n##### pattern\n\n* Required: `true`\n* Type: `string`\n\nAny string, for example, a path to a file.\n\n## Options\n\n### Common options\n\n#### concurrency\n\n* Type: `number`\n* Default: `os.cpus().length`\n\nSpecifies the maximum number of concurrent requests from a reader to read directories.\n\n> :book: The higher the number, the higher the performance and load on the file system. If you want to read in quiet mode, set the value to a comfortable number or `1`.\n\n#### cwd\n\n* Type: `string`\n* Default: `process.cwd()`\n\nThe current working directory in which to search.\n\n#### deep\n\n* Type: `number`\n* Default: `Infinity`\n\nSpecifies the maximum depth of a read directory relative to the start directory.\n\nFor example, you have the following tree:\n\n```js\ndir/\n└── one/ // 1\n └── two/ // 2\n └── file.js // 3\n```\n\n```js\n// With base directory\nfg.sync('dir/**', { onlyFiles: false, deep: 1 }); // ['dir/one']\nfg.sync('dir/**', { onlyFiles: false, deep: 2 }); // ['dir/one', 'dir/one/two']\n\n// With cwd option\nfg.sync('**', { onlyFiles: false, cwd: 'dir', deep: 1 }); // ['one']\nfg.sync('**', { onlyFiles: false, cwd: 'dir', deep: 2 }); // ['one', 'one/two']\n```\n\n> :book: If you specify a pattern with some base directory, this directory will not participate in the calculation of the depth of the found directories. Think of it as a [`cwd`](#cwd) option.\n\n#### followSymbolicLinks\n\n* Type: `boolean`\n* Default: `true`\n\nIndicates whether to traverse descendants of symbolic link directories when expanding `**` patterns.\n\n> :book: Note that this option does not affect the base directory of the pattern. For example, if `./a` is a symlink to directory `./b` and you specified `['./a**', './b/**']` patterns, then directory `./a` will still be read.\n\n> :book: If the [`stats`](#stats) option is specified, the information about the symbolic link (`fs.lstat`) will be replaced with information about the entry (`fs.stat`) behind it.\n\n#### fs\n\n* Type: `FileSystemAdapter`\n* Default: `fs.*`\n\nCustom implementation of methods for working with the file system.\n\n```ts\nexport interface FileSystemAdapter {\n lstat?: typeof fs.lstat;\n stat?: typeof fs.stat;\n lstatSync?: typeof fs.lstatSync;\n statSync?: typeof fs.statSync;\n readdir?: typeof fs.readdir;\n readdirSync?: typeof fs.readdirSync;\n}\n```\n\n#### ignore\n\n* Type: `string[]`\n* Default: `[]`\n\nAn array of glob patterns to exclude matches. This is an alternative way to use negative patterns.\n\n```js\ndir/\n├── package-lock.json\n└── package.json\n```\n\n```js\nfg.sync(['*.json', '!package-lock.json']); // ['package.json']\nfg.sync('*.json', { ignore: ['package-lock.json'] }); // ['package.json']\n```\n\n#### suppressErrors\n\n* Type: `boolean`\n* Default: `false`\n\nBy default this package suppress only `ENOENT` errors. Set to `true` to suppress any error.\n\n> :book: Can be useful when the directory has entries with a special level of access.\n\n#### throwErrorOnBrokenSymbolicLink\n\n* Type: `boolean`\n* Default: `false`\n\nThrow an error when symbolic link is broken if `true` or safely return `lstat` call if `false`.\n\n> :book: This option has no effect on errors when reading the symbolic link directory.\n\n### Output control\n\n#### absolute\n\n* Type: `boolean`\n* Default: `false`\n\nReturn the absolute path for entries.\n\n```js\nfg.sync('*.js', { absolute: false }); // ['index.js']\nfg.sync('*.js', { absolute: true }); // ['/home/user/index.js']\n```\n\n> :book: This option is required if you want to use negative patterns with absolute path, for example, `!${__dirname}/*.js`.\n\n#### markDirectories\n\n* Type: `boolean`\n* Default: `false`\n\nMark the directory path with the final slash.\n\n```js\nfg.sync('*', { onlyFiles: false, markDirectories: false }); // ['index.js', 'controllers']\nfg.sync('*', { onlyFiles: false, markDirectories: true }); // ['index.js', 'controllers/']\n```\n\n#### objectMode\n\n* Type: `boolean`\n* Default: `false`\n\nReturns objects (instead of strings) describing entries.\n\n```js\nfg.sync('*', { objectMode: false }); // ['src/index.js']\nfg.sync('*', { objectMode: true }); // [{ name: 'index.js', path: 'src/index.js', dirent: <fs.Dirent> }]\n```\n\nThe object has the following fields:\n\n* name (`string`) — the last part of the path (basename)\n* path (`string`) — full path relative to the pattern base directory\n* dirent ([`fs.Dirent`][node_js_fs_class_fs_dirent]) — instance of `fs.Dirent`\n\n> :book: An object is an internal representation of entry, so getting it does not affect performance.\n\n#### onlyDirectories\n\n* Type: `boolean`\n* Default: `false`\n\nReturn only directories.\n\n```js\nfg.sync('*', { onlyDirectories: false }); // ['index.js', 'src']\nfg.sync('*', { onlyDirectories: true }); // ['src']\n```\n\n> :book: If `true`, the [`onlyFiles`](#onlyfiles) option is automatically `false`.\n\n#### onlyFiles\n\n* Type: `boolean`\n* Default: `true`\n\nReturn only files.\n\n```js\nfg.sync('*', { onlyFiles: false }); // ['index.js', 'src']\nfg.sync('*', { onlyFiles: true }); // ['index.js']\n```\n\n#### stats\n\n* Type: `boolean`\n* Default: `false`\n\nEnables an [object mode](#objectmode) with an additional field:\n\n* stats ([`fs.Stats`][node_js_fs_class_fs_stats]) — instance of `fs.Stats`\n\n```js\nfg.sync('*', { stats: false }); // ['src/index.js']\nfg.sync('*', { stats: true }); // [{ name: 'index.js', path: 'src/index.js', dirent: <fs.Dirent>, stats: <fs.Stats> }]\n```\n\n> :book: Returns `fs.stat` instead of `fs.lstat` for symbolic links when the [`followSymbolicLinks`](#followsymboliclinks) option is specified.\n>\n> :warning: Unlike [object mode](#objectmode) this mode requires additional calls to the file system. On average, this mode is slower at least twice. See [old and modern mode](#old-and-modern-mode) for more details.\n\n#### unique\n\n* Type: `boolean`\n* Default: `true`\n\nEnsures that the returned entries are unique.\n\n```js\nfg.sync(['*.json', 'package.json'], { unique: false }); // ['package.json', 'package.json']\nfg.sync(['*.json', 'package.json'], { unique: true }); // ['package.json']\n```\n\nIf `true` and similar entries are found, the result is the first found.\n\n### Matching control\n\n#### braceExpansion\n\n* Type: `boolean`\n* Default: `true`\n\nEnables Bash-like brace expansion.\n\n> :1234: [Syntax description][bash_hackers_syntax_expansion_brace] or more [detailed description][micromatch_braces].\n\n```js\ndir/\n├── abd\n├── acd\n└── a{b,c}d\n```\n\n```js\nfg.sync('a{b,c}d', { braceExpansion: false }); // ['a{b,c}d']\nfg.sync('a{b,c}d', { braceExpansion: true }); // ['abd', 'acd']\n```\n\n#### caseSensitiveMatch\n\n* Type: `boolean`\n* Default: `true`\n\nEnables a [case-sensitive][wikipedia_case_sensitivity] mode for matching files.\n\n```js\ndir/\n├── file.txt\n└── File.txt\n```\n\n```js\nfg.sync('file.txt', { caseSensitiveMatch: false }); // ['file.txt', 'File.txt']\nfg.sync('file.txt', { caseSensitiveMatch: true }); // ['file.txt']\n```\n\n#### dot\n\n* Type: `boolean`\n* Default: `false`\n\nAllow patterns to match entries that begin with a period (`.`).\n\n> :book: Note that an explicit dot in a portion of the pattern will always match dot files.\n\n```js\ndir/\n├── .editorconfig\n└── package.json\n```\n\n```js\nfg.sync('*', { dot: false }); // ['package.json']\nfg.sync('*', { dot: true }); // ['.editorconfig', 'package.json']\n```\n\n#### extglob\n\n* Type: `boolean`\n* Default: `true`\n\nEnables Bash-like `extglob` functionality.\n\n> :1234: [Syntax description][micromatch_extglobs].\n\n```js\ndir/\n├── README.md\n└── package.json\n```\n\n```js\nfg.sync('*.+(json|md)', { extglob: false }); // []\nfg.sync('*.+(json|md)', { extglob: true }); // ['README.md', 'package.json']\n```\n\n#### globstar\n\n* Type: `boolean`\n* Default: `true`\n\nEnables recursively repeats a pattern containing `**`. If `false`, `**` behaves exactly like `*`.\n\n```js\ndir/\n└── a\n └── b\n```\n\n```js\nfg.sync('**', { onlyFiles: false, globstar: false }); // ['a']\nfg.sync('**', { onlyFiles: false, globstar: true }); // ['a', 'a/b']\n```\n\n#### baseNameMatch\n\n* Type: `boolean`\n* Default: `false`\n\nIf set to `true`, then patterns without slashes will be matched against the basename of the path if it contains slashes.\n\n```js\ndir/\n└── one/\n └── file.md\n```\n\n```js\nfg.sync('*.md', { baseNameMatch: false }); // []\nfg.sync('*.md', { baseNameMatch: true }); // ['one/file.md']\n```\n\n## FAQ\n\n## What is a static or dynamic pattern?\n\nAll patterns can be divided into two types:\n\n* **static**. A pattern is considered static if it can be used to get an entry on the file system without using matching mechanisms. For example, the `file.js` pattern is a static pattern because we can just verify that it exists on the file system.\n* **dynamic**. A pattern is considered dynamic if it cannot be used directly to find occurrences without using a matching mechanisms. For example, the `*` pattern is a dynamic pattern because we cannot use this pattern directly.\n\nA pattern is considered dynamic if it contains the following characters (`…` — any characters or their absence) or options:\n\n* The [`caseSensitiveMatch`](#casesensitivematch) option is disabled\n* `\\\\` (the escape character)\n* `*`, `?`, `!` (at the beginning of line)\n* `[…]`\n* `(…|…)`\n* `@(…)`, `!(…)`, `*(…)`, `?(…)`, `+(…)` (respects the [`extglob`](#extglob) option)\n* `{…,…}`, `{…..…}` (respects the [`braceExpansion`](#braceexpansion) option)\n\n## How to write patterns on Windows?\n\nAlways use forward-slashes in glob expressions (patterns and [`ignore`](#ignore) option). Use backslashes for escaping characters. With the [`cwd`](#cwd) option use a convenient format.\n\n**Bad**\n\n```ts\n[\n\t'directory\\\\*',\n\tpath.join(process.cwd(), '**')\n]\n```\n\n**Good**\n\n```ts\n[\n\t'directory/*',\n\tpath.join(process.cwd(), '**').replace(/\\\\/g, '/')\n]\n```\n\n> :book: Use the [`normalize-path`][npm_normalize_path] or the [`unixify`][npm_unixify] package to convert Windows-style path to a Unix-style path.\n\nRead more about [matching with backslashes][micromatch_backslashes].\n\n## Why are parentheses match wrong?\n\n```js\ndir/\n└── (special-*file).txt\n```\n\n```js\nfg.sync(['(special-*file).txt']) // []\n```\n\nRefers to Bash. You need to escape special characters:\n\n```js\nfg.sync(['\\\\(special-*file\\\\).txt']) // ['(special-*file).txt']\n```\n\nRead more about [matching special characters as literals][picomatch_matching_special_characters_as_literals].\n\n## How to exclude directory from reading?\n\nYou can use a negative pattern like this: `!**/node_modules` or `!**/node_modules/**`. Also you can use [`ignore`](#ignore) option. Just look at the example below.\n\n```js\nfirst/\n├── file.md\n└── second/\n └── file.txt\n```\n\nIf you don't want to read the `second` directory, you must write the following pattern: `!**/second` or `!**/second/**`.\n\n```js\nfg.sync(['**/*.md', '!**/second']); // ['first/file.md']\nfg.sync(['**/*.md'], { ignore: ['**/second/**'] }); // ['first/file.md']\n```\n\n> :warning: When you write `!**/second/**/*` it means that the directory will be **read**, but all the entries will not be included in the results.\n\nYou have to understand that if you write the pattern to exclude directories, then the directory will not be read under any circumstances.\n\n## How to use UNC path?\n\nYou cannot use [Uniform Naming Convention (UNC)][unc_path] paths as patterns (due to syntax), but you can use them as [`cwd`](#cwd) directory.\n\n```ts\nfg.sync('*', { cwd: '\\\\\\\\?\\\\C:\\\\Python27' /* or //?/C:/Python27 */ });\nfg.sync('Python27/*', { cwd: '\\\\\\\\?\\\\C:\\\\' /* or //?/C:/ */ });\n```\n\n## Compatible with `node-glob`?\n\n| node-glob | fast-glob |\n| :----------: | :-------: |\n| `cwd` | [`cwd`](#cwd) |\n| `root` | – |\n| `dot` | [`dot`](#dot) |\n| `nomount` | – |\n| `mark` | [`markDirectories`](#markdirectories) |\n| `nosort` | – |\n| `nounique` | [`unique`](#unique) |\n| `nobrace` | [`braceExpansion`](#braceexpansion) |\n| `noglobstar` | [`globstar`](#globstar) |\n| `noext` | [`extglob`](#extglob) |\n| `nocase` | [`caseSensitiveMatch`](#casesensitivematch) |\n| `matchBase` | [`baseNameMatch`](#basenamematch) |\n| `nodir` | [`onlyFiles`](#onlyfiles) |\n| `ignore` | [`ignore`](#ignore) |\n| `follow` | [`followSymbolicLinks`](#followsymboliclinks) |\n| `realpath` | – |\n| `absolute` | [`absolute`](#absolute) |\n\n## Benchmarks\n\n### Server\n\nLink: [Vultr Bare Metal][vultr_pricing_baremetal]\n\n* Processor: E3-1270v6 (8 CPU)\n* RAM: 32GB\n* Disk: SSD ([Intel DC S3520 SSDSC2BB240G7][intel_ssd])\n\nYou can see results [here][github_gist_benchmark_server] for latest release.\n\n### Nettop\n\nLink: [Zotac bi323][zotac_bi323]\n\n* Processor: Intel N3150 (4 CPU)\n* RAM: 8GB\n* Disk: SSD ([Silicon Power SP060GBSS3S55S25][silicon_power_ssd])\n\nYou can see results [here][github_gist_benchmark_nettop] for latest release.\n\n## Changelog\n\nSee the [Releases section of our GitHub project][github_releases] for changelog for each release version.\n\n## License\n\nThis software is released under the terms of the MIT license.\n\n[bash_hackers_syntax_expansion_brace]: https://wiki.bash-hackers.org/syntax/expansion/brace\n[github_gist_benchmark_nettop]: https://gist.github.com/mrmlnc/f06246b197f53c356895fa35355a367c#file-fg-benchmark-nettop-product-txt\n[github_gist_benchmark_server]: https://gist.github.com/mrmlnc/f06246b197f53c356895fa35355a367c#file-fg-benchmark-server-product-txt\n[github_releases]: https://github.com/mrmlnc/fast-glob/releases\n[glob_definition]: https://en.wikipedia.org/wiki/Glob_(programming)\n[glob_linux_man]: http://man7.org/linux/man-pages/man3/glob.3.html\n[intel_ssd]: https://ark.intel.com/content/www/us/en/ark/products/93012/intel-ssd-dc-s3520-series-240gb-2-5in-sata-6gb-s-3d1-mlc.html\n[micromatch_backslashes]: https://github.com/micromatch/micromatch#backslashes\n[micromatch_braces]: https://github.com/micromatch/braces\n[micromatch_extended_globbing]: https://github.com/micromatch/micromatch#extended-globbing\n[micromatch_extglobs]: https://github.com/micromatch/micromatch#extglobs\n[micromatch_regex_character_classes]: https://github.com/micromatch/micromatch#regex-character-classes\n[micromatch]: https://github.com/micromatch/micromatch\n[node_js_fs_class_fs_dirent]: https://nodejs.org/api/fs.html#fs_class_fs_dirent\n[node_js_fs_class_fs_stats]: https://nodejs.org/api/fs.html#fs_class_fs_stats\n[node_js_stream_readable_streams]: https://nodejs.org/api/stream.html#stream_readable_streams\n[node_js]: https://nodejs.org/en\n[nodelib_fs_scandir_old_and_modern_modern]: https://github.com/nodelib/nodelib/blob/master/packages/fs/fs.scandir/README.md#old-and-modern-mode\n[npm_normalize_path]: https://www.npmjs.com/package/normalize-path\n[npm_unixify]: https://www.npmjs.com/package/unixify\n[paypal_mrmlnc]:https://paypal.me/mrmlnc\n[picomatch_matching_behavior]: https://github.com/micromatch/picomatch#matching-behavior-vs-bash\n[picomatch_matching_special_characters_as_literals]: https://github.com/micromatch/picomatch#matching-special-characters-as-literals\n[picomatch_posix_brackets]: https://github.com/micromatch/picomatch#posix-brackets\n[regular_expressions_brackets]: https://www.regular-expressions.info/brackets.html\n[silicon_power_ssd]: https://www.silicon-power.com/web/product-1\n[unc_path]: https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/62e862f4-2a51-452e-8eeb-dc4ff5ee33cc\n[vultr_pricing_baremetal]: https://www.vultr.com/pricing/baremetal\n[wikipedia_case_sensitivity]: https://en.wikipedia.org/wiki/Case_sensitivity\n[zotac_bi323]: https://www.zotac.com/ee/product/mini_pcs/zbox-bi323\n# Tools\n\n## clang-format\n\nThe clang-format checking tools is designed to check changed lines of code compared to given git-refs.\n\n## Migration Script\n\nThe migration tool is designed to reduce repetitive work in the migration process. However, the script is not aiming to convert every thing for you. There are usually some small fixes and major reconstruction required.\n\n### How To Use\n\nTo run the conversion script, first make sure you have the latest `node-addon-api` in your `node_modules` directory.\n```\nnpm install node-addon-api\n```\n\nThen run the script passing your project directory\n```\nnode ./node_modules/node-addon-api/tools/conversion.js ./\n```\n\nAfter finish, recompile and debug things that are missed by the script.\n\n### Quick Fixes\nHere is the list of things that can be fixed easily.\n 1. Change your methods' return value to void if it doesn't return value to JavaScript.\n 2. Use `.` to access attribute or to invoke member function in Napi::Object instead of `->`.\n 3. `Napi::New(env, value);` to `Napi::[Type]::New(env, value);\n\n### Major Reconstructions\nThe implementation of `Napi::ObjectWrap` is significantly different from NAN's. `Napi::ObjectWrap` takes a pointer to the wrapped object and creates a reference to the wrapped object inside ObjectWrap constructor. `Napi::ObjectWrap` also associates wrapped object's instance methods to Javascript module instead of static methods like NAN.\n\nSo if you use Nan::ObjectWrap in your module, you will need to execute the following steps.\n\n 1. Convert your [ClassName]::New function to a constructor function that takes a `Napi::CallbackInfo`. Declare it as\n```\n[ClassName](const Napi::CallbackInfo& info);\n```\nand define it as\n```\n[ClassName]::[ClassName](const Napi::CallbackInfo& info) : Napi::ObjectWrap<[ClassName]>(info){\n ...\n}\n```\nThis way, the `Napi::ObjectWrap` constructor will be invoked after the object has been instantiated and `Napi::ObjectWrap` can use the `this` pointer to create a reference to the wrapped object.\n\n 2. Move your original constructor code into the new constructor. Delete your original constructor.\n 3. In your class initialization function, associate native methods in the following way.\n```\nNapi::FunctionReference constructor;\n\nvoid [ClassName]::Init(Napi::Env env, Napi::Object exports, Napi::Object module) {\n Napi::HandleScope scope(env);\n Napi::Function ctor = DefineClass(env, \"Canvas\", {\n InstanceMethod<&[ClassName]::Func1>(\"Func1\"),\n InstanceMethod<&[ClassName]::Func2>(\"Func2\"),\n InstanceAccessor<&[ClassName]::ValueGetter>(\"Value\"),\n StaticMethod<&[ClassName]::StaticMethod>(\"MethodName\"),\n InstanceValue(\"Value\", Napi::[Type]::New(env, value)),\n });\n\n constructor = Napi::Persistent(ctor);\n constructor .SuppressDestruct();\n exports.Set(\"[ClassName]\", ctor);\n}\n```\n 4. In function where you need to Unwrap the ObjectWrap in NAN like `[ClassName]* native = Nan::ObjectWrap::Unwrap<[ClassName]>(info.This());`, use `this` pointer directly as the unwrapped object as each ObjectWrap instance is associated with a unique object instance.\n\nIf you still find issues after following this guide, please leave us an issue describing your problem and we will try to resolve it.\nnode-bindings\n=============\n### Helper module for loading your native module's `.node` file\n\nThis is a helper module for authors of Node.js native addon modules.\nIt is basically the \"swiss army knife\" of `require()`ing your native module's\n`.node` file.\n\nThroughout the course of Node's native addon history, addons have ended up being\ncompiled in a variety of different places, depending on which build tool and which\nversion of node was used. To make matters worse, now the `gyp` build tool can\nproduce either a __Release__ or __Debug__ build, each being built into different\nlocations.\n\nThis module checks _all_ the possible locations that a native addon would be built\nat, and returns the first one that loads successfully.\n\nInstallation\n------------\n\nInstall with `npm`:\n\n``` bash\n$ npm install --save bindings\n```\n\nOr add it to the `\"dependencies\"` section of your `package.json` file.\n\nExample\n-------\n\n`require()`ing the proper bindings file for the current node version, platform\nand architecture is as simple as:\n\n``` js\nvar bindings = require('bindings')('binding.node')\n\n// Use your bindings defined in your C files\nbindings.your_c_function()\n```\n\nNice Error Output\n-----------------\n\nWhen the `.node` file could not be loaded, `node-bindings` throws an Error with\na nice error message telling you exactly what was tried. You can also check the\n`err.tries` Array property.\n\n```\nError: Could not load the bindings file. Tried:\n → /Users/nrajlich/ref/build/binding.node\n → /Users/nrajlich/ref/build/Debug/binding.node\n → /Users/nrajlich/ref/build/Release/binding.node\n → /Users/nrajlich/ref/out/Debug/binding.node\n → /Users/nrajlich/ref/Debug/binding.node\n → /Users/nrajlich/ref/out/Release/binding.node\n → /Users/nrajlich/ref/Release/binding.node\n → /Users/nrajlich/ref/build/default/binding.node\n → /Users/nrajlich/ref/compiled/0.8.2/darwin/x64/binding.node\n at bindings (/Users/nrajlich/ref/node_modules/bindings/bindings.js:84:13)\n at Object.<anonymous> (/Users/nrajlich/ref/lib/ref.js:5:47)\n at Module._compile (module.js:449:26)\n at Object.Module._extensions..js (module.js:467:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n ...\n```\n\nThe searching for the `.node` file will originate from the first directory in which has a `package.json` file is found.\n\nLicense\n-------\n\n(The MIT License)\n\nCopyright (c) 2012 Nathan Rajlich <nathan@tootallnate.net>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# Javascript Error Polyfill\n\n[](https://travis-ci.org/inf3rno/error-polyfill)\n\nImplementing the [V8 Stack Trace API](https://github.com/v8/v8/wiki/Stack-Trace-API) in non-V8 environments as much as possible\n\n## Installation\n\n```bash\nnpm install error-polyfill\n```\n\n```bash\nbower install error-polyfill\n```\n\n### Environment compatibility\n\nTested on the following environments:\n\nWindows 7\n - **Node.js** 9.6\n - **Chrome** 64.0\n - **Firefox** 58.0\n - **Internet Explorer** 10.0, 11.0\n - **PhantomJS** 2.1\n - **Opera** 51.0\n\nTravis\n - **Node.js** 8, 9\n - **Chrome**\n - **Firefox**\n - **PhantomJS**\n \nThe polyfill might work on other environments too due to its adaptive design. I use [Karma](https://github.com/karma-runner/karma) with [Browserify](https://github.com/substack/node-browserify) to test the framework in browsers.\n\n### Requirements\n\nES5 support is required, without that the lib throws an Error and stops working. \n\nThe ES5 features are tested by the [capability](https://github.com/inf3rno/capability) lib run time.\nClasses are created by the [o3](https://github.com/inf3rno/o3) lib.\nUtility functions are implemented in the [u3](https://github.com/inf3rno/u3) lib.\n\n## API documentation\n\n### Usage\n\nIn this documentation I used the framework as follows:\n\n```js\nrequire(\"error-polyfill\");\n\n// <- your code here\n```\n\nIt is recommended to require the polyfill in your main script.\n\n### Getting a past stack trace with `Error.getStackTrace`\n\nThis static method is not part of the V8 Stack Trace API, but it is recommended to **use `Error.getStackTrace(throwable)` instead of `throwable.stack`** to get the stack trace of Error instances!\n\nExplanation:\n\nBy non-V8 environments we cannot replace the default stack generation algorithm, so we need a workaround to generate the stack when somebody tries to access it. So the original stack string will be parsed and the result will be properly formatted by accessing the stack using the `Error.getStackTrace` method.\n\nArguments and return values:\n\n - The `throwable` argument should be an `Error` (descendant) instance, but it can be an `Object` instance as well.\n - The return value is the generated `stack` of the `throwable` argument.\n\nExample:\n\n```js\ntry {\n theNotDefinedFunction();\n}\ncatch (error) {\n console.log(Error.getStackTrace(error));\n // ReferenceError: theNotDefinedFunction is not defined\n // at ...\n // ...\n}\n```\n\n### Capturing the present stack trace with `Error.captureStackTrace`\n\nThe `Error.captureStackTrace(throwable [, terminator])` sets the present stack above the `terminator` on the `throwable`. \n\nArguments and return values:\n\n - The `throwable` argument should be an instance of an `Error` descendant, but it can be an `Object` instance as well. It is recommended to use `Error` descendant instances instead of inline objects, because we can recognize them by type e.g. `error instanceof UserError`.\n - The optional `terminator` argument should be a `Function`. Only the calls before this function will be reported in the stack, so without a `terminator` argument, the last call in the stack will be the call of the `Error.captureStackTrace`.\n - There is no return value, the `stack` will be set on the `throwable` so you will be able to access it using `Error.getStackTrace`. The format of the stack depends on the `Error.prepareStackTrace` implementation.\n\nExample:\n\n```js\n\nvar UserError = function (message){\n this.name = \"UserError\";\n this.message = message;\n Error.captureStackTrace(this, this.constructor);\n};\nUserError.prototype = Object.create(Error.prototype);\n\nfunction codeSmells(){\n throw new UserError(\"What's going on?!\");\n}\n\ncodeSmells();\n // UserError: What's going on?!\n // at codeSmells (myModule.js:23:1)\n // ...\n\n```\n\nLimitations:\n\nBy the current implementation the `terminator` can be only the `Error.captureStackTrace` caller function. This will change soon, but in certain conditions, e.g. by using strict mode (`\"use strict\";`) it is not possible to access the information necessary to implement this feature. You will get an empty `frames` array and a `warning` in the `Error.prepareStackTrace` when the stack parser meets with such conditions.\n\n### Formatting the stack trace with `Error.prepareStackTrace`\n\nThe `Error.prepareStackTrace(throwable, frames [, warnings])` formats the stack `frames` and returns the `stack` value for `Error.captureStackTrace` or `Error.getStackTrace`. The native implementation returns a stack string, but you can override that by setting a new function value.\n\nArguments and return values:\n\n - The `throwable` argument is an `Error` or `Object` instance coming from the `Error.captureStackTrace` or from the creation of a new `Error` instance. Be aware that in some environments you need to throw that instance to get a parsable stack. Without that you will get only a `warning` by trying to access the stack with `Error.getStackTrace`.\n - The `frames` argument is an array of `Frame` instances. Each `frame` represents a function call in the stack. You can use these frames to build a stack string. To access information about individual frames you can use the following methods.\n - `frame.toString()` - Returns the string representation of the frame, e.g. `codeSmells (myModule.js:23:1)`.\n - `frame.getThis()` - **Cannot be supported.** Returns the context of the call, only V8 environments support this natively.\n - `frame.getTypeName()` - **Not implemented yet.** Returns the type name of the context, by the global namespace it is `Window` in Chrome.\n - `frame.getFunction()` - Returns the called function or `undefined` by strict mode.\n - `frame.getFunctionName()` - **Not implemented yet.** Returns the name of the called function.\n - `frame.getMethodName()` - **Not implemented yet.** Returns the method name of the called function is a method of an object.\n - `frame.getFileName()` - **Not implemented yet.** Returns the file name where the function was called.\n - `frame.getLineNumber()` - **Not implemented yet.** Returns at which line the function was called in the file.\n - `frame.getColumnNumber()` - **Not implemented yet.** Returns at which column the function was called in the file. This information is not always available.\n - `frame.getEvalOrigin()` - **Not implemented yet.** Returns the original of an `eval` call.\n - `frame.isTopLevel()` - **Not implemented yet.** Returns whether the function was called from the top level.\n - `frame.isEval()` - **Not implemented yet.** Returns whether the called function was `eval`.\n - `frame.isNative()` - **Not implemented yet.** Returns whether the called function was native.\n - `frame.isConstructor()` - **Not implemented yet.** Returns whether the called function was a constructor.\n - The optional `warnings` argument contains warning messages coming from the stack parser. It is not part of the V8 Stack Trace API.\n - The return value will be the stack you can access with `Error.getStackTrace(throwable)`. If it is an object, it is recommended to add a `toString` method, so you will be able to read it in the console.\n\nExample:\n\n```js\nError.prepareStackTrace = function (throwable, frames, warnings) {\n var string = \"\";\n string += throwable.name || \"Error\";\n string += \": \" + (throwable.message || \"\");\n if (warnings instanceof Array)\n for (var warningIndex in warnings) {\n var warning = warnings[warningIndex];\n string += \"\\n # \" + warning;\n }\n for (var frameIndex in frames) {\n var frame = frames[frameIndex];\n string += \"\\n at \" + frame.toString();\n }\n return string;\n};\n```\n\n### Stack trace size limits with `Error.stackTraceLimit`\n\n**Not implemented yet.**\n\nYou can set size limits on the stack trace, so you won't have any problems because of too long stack traces.\n\nExample:\n\n```js\nError.stackTraceLimit = 10;\n```\n\n### Handling uncaught errors and rejections\n\n**Not implemented yet.**\n\n## Differences between environments and modes\n\nSince there is no Stack Trace API standard, every browsers solves this problem differently. I try to document what I've found about these differences as detailed as possible, so it will be easier to follow the code.\n\nOverriding the `error.stack` property with custom Stack instances\n \n - by Node.js and Chrome the `Error.prepareStackTrace()` can override every `error.stack` automatically right by creation\n - by Firefox, Internet Explorer and Opera you cannot automatically override every `error.stack` by native errors\n - by PhantomJS you cannot override the `error.stack` property of native errors, it is not configurable\n \nCapturing the current stack trace\n \n - by Node.js, Chrome, Firefox and Opera the stack property is added by instantiating a native error\n - by Node.js and Chrome the stack creation is lazy loaded and cached, so the `Error.prepareStackTrace()` is called only by the first access\n - by Node.js and Chrome the current stack can be added to any object with `Error.captureStackTrace()`\n - by Internet Explorer the stack is created by throwing a native error\n - by PhantomJS the stack is created by throwing any object, but not a primitive\n \nAccessing the stack\n \n - by Node.js, Chrome, Firefox, Internet Explorer, Opera and PhantomJS you can use the `error.stack` property\n - by old Opera you have to use the `error.stacktrace` property to get the stack\n \nPrefixes and postfixes on the stack string\n \n - by Node.js, Chrome, Internet Explorer and Opera you have the `error.name` and the `error.message` in a `{name}: {message}` format at the beginning of the stack string\n - by Firefox and PhantomJS the stack string does not contain the `error.name` and the `error.message`\n - by Firefox you have an empty line at the end of the stack string\n \nAccessing the stack frames array\n\n - by Node.js and Chrome you can access the frame objects directly by overriding the `Error.prepareStackTrace()`\n - by Firefox, Internet Explorer, PhantomJS, and Opera you need to parse the stack string in order to get the frames\n \nThe structure of the frame string\n\n - by Node.js and Chrome\n - the frame string of calling a function from a module: `thirdFn (http://localhost/myModule.js:45:29)`\n - the frame strings contain an ` at ` prefix, which is not present by the `frame.toString()` output, so it is added by the `stack.toString()`\n - by Firefox\n - the frame string of calling a function from a module: `thirdFn@http://localhost/myModule.js:45:29`\n - by Internet Explorer\n - the frame string of calling a function from a module: ` at thirdFn (http://localhost/myModule.js:45:29)`\n - by PhantomJS\n - the frame string of calling a function from a module: `thirdFn@http://localhost/myModule.js:45:29`\n - by Opera\n - the frame string of calling a function from a module: ` at thirdFn (http://localhost/myModule.js:45)`\n \nAccessing information by individual frames\n\n - by Node.js and Chrome the `frame.getThis()` and the `frame.getFunction()` returns `undefined` by frames originate from [strict mode](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode) code\n - by Firefox, Internet Explorer, PhantomJS, and Opera the context of the function calls is not accessible, so the `frame.getThis()` cannot be implemented\n - by Firefox, Internet Explorer, PhantomJS, and Opera functions are not accessible with `arguments.callee.caller` by frames originate from strict mode, so by these frames `frame.getFunction()` can return only `undefined` (this is consistent with V8 behavior)\n\n## License\n\nMIT - 2016 Jánszky László Lajos\n# cliui\n\n\n[](https://www.npmjs.com/package/cliui)\n[](https://conventionalcommits.org)\n\n\neasily create complex multi-column command-line-interfaces.\n\n## Example\n\n```js\nconst ui = require('cliui')()\n\nui.div('Usage: $0 [command] [options]')\n\nui.div({\n text: 'Options:',\n padding: [2, 0, 1, 0]\n})\n\nui.div(\n {\n text: \"-f, --file\",\n width: 20,\n padding: [0, 4, 0, 4]\n },\n {\n text: \"the file to load.\" +\n chalk.green(\"(if this description is long it wraps).\")\n ,\n width: 20\n },\n {\n text: chalk.red(\"[required]\"),\n align: 'right'\n }\n)\n\nconsole.log(ui.toString())\n```\n\n## Deno/ESM Support\n\nAs of `v7` `cliui` supports [Deno](https://github.com/denoland/deno) and\n[ESM](https://nodejs.org/api/esm.html#esm_ecmascript_modules):\n\n```typescript\nimport cliui from \"https://deno.land/x/cliui/deno.ts\";\n\nconst ui = cliui({})\n\nui.div('Usage: $0 [command] [options]')\n\nui.div({\n text: 'Options:',\n padding: [2, 0, 1, 0]\n})\n\nui.div({\n text: \"-f, --file\",\n width: 20,\n padding: [0, 4, 0, 4]\n})\n\nconsole.log(ui.toString())\n```\n\n<img width=\"500\" src=\"screenshot.png\">\n\n## Layout DSL\n\ncliui exposes a simple layout DSL:\n\nIf you create a single `ui.div`, passing a string rather than an\nobject:\n\n* `\\n`: characters will be interpreted as new rows.\n* `\\t`: characters will be interpreted as new columns.\n* `\\s`: characters will be interpreted as padding.\n\n**as an example...**\n\n```js\nvar ui = require('./')({\n width: 60\n})\n\nui.div(\n 'Usage: node ./bin/foo.js\\n' +\n ' <regex>\\t provide a regex\\n' +\n ' <glob>\\t provide a glob\\t [required]'\n)\n\nconsole.log(ui.toString())\n```\n\n**will output:**\n\n```shell\nUsage: node ./bin/foo.js\n <regex> provide a regex\n <glob> provide a glob [required]\n```\n\n## Methods\n\n```js\ncliui = require('cliui')\n```\n\n### cliui({width: integer})\n\nSpecify the maximum width of the UI being generated.\nIf no width is provided, cliui will try to get the current window's width and use it, and if that doesn't work, width will be set to `80`.\n\n### cliui({wrap: boolean})\n\nEnable or disable the wrapping of text in a column.\n\n### cliui.div(column, column, column)\n\nCreate a row with any number of columns, a column\ncan either be a string, or an object with the following\noptions:\n\n* **text:** some text to place in the column.\n* **width:** the width of a column.\n* **align:** alignment, `right` or `center`.\n* **padding:** `[top, right, bottom, left]`.\n* **border:** should a border be placed around the div?\n\n### cliui.span(column, column, column)\n\nSimilar to `div`, except the next row will be appended without\na new line being created.\n\n### cliui.resetOutput()\n\nResets the UI elements of the current cliui instance, maintaining the values\nset for `width` and `wrap`.\n# balanced-match\n\nMatch balanced string pairs, like `{` and `}` or `<b>` and `</b>`. Supports regular expressions as well!\n\n[](http://travis-ci.org/juliangruber/balanced-match)\n[](https://www.npmjs.org/package/balanced-match)\n\n[](https://ci.testling.com/juliangruber/balanced-match)\n\n## Example\n\nGet the first matching pair of braces:\n\n```js\nvar balanced = require('balanced-match');\n\nconsole.log(balanced('{', '}', 'pre{in{nested}}post'));\nconsole.log(balanced('{', '}', 'pre{first}between{second}post'));\nconsole.log(balanced(/\\s+\\{\\s+/, /\\s+\\}\\s+/, 'pre { in{nest} } post'));\n```\n\nThe matches are:\n\n```bash\n$ node example.js\n{ start: 3, end: 14, pre: 'pre', body: 'in{nested}', post: 'post' }\n{ start: 3,\n end: 9,\n pre: 'pre',\n body: 'first',\n post: 'between{second}post' }\n{ start: 3, end: 17, pre: 'pre', body: 'in{nest}', post: 'post' }\n```\n\n## API\n\n### var m = balanced(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\nobject with those keys:\n\n* **start** the index of the first match of `a`\n* **end** the index of the matching `b`\n* **pre** the preamble, `a` and `b` not included\n* **body** the match, `a` and `b` not included\n* **post** the postscript, `a` and `b` not included\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `['{', 'a', '']` and `{a}}` will match `['', 'a', '}']`.\n\n### var r = balanced.range(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\narray with indexes: `[ <a index>, <b index> ]`.\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `[ 1, 3 ]` and `{a}}` will match `[0, 2]`.\n\n## Installation\n\nWith [npm](https://npmjs.org) do:\n\n```bash\nnpm install balanced-match\n```\n\n## Security contact information\n\nTo report a security vulnerability, please use the\n[Tidelift security contact](https://tidelift.com/security).\nTidelift will coordinate the fix and disclosure.\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n<p align=\"center\">\n <a href=\"http://gulpjs.com\">\n <img height=\"257\" width=\"114\" src=\"https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png\">\n </a>\n</p>\n\n# v8flags\n\n[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Travis Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]\n\nGet available v8 and Node.js flags.\n\n## Usage\n```js\nconst v8flags = require('v8flags');\n\nv8flags(function(err, results) {\n console.log(results);\n // [ '--use_strict',\n // '--es5_readonly',\n // '--es52_globals',\n // '--harmony_typeof',\n // '--harmony_scoping',\n // '--harmony_modules',\n // '--harmony_proxies',\n // '--harmony_collections',\n // '--harmony',\n // ...\n});\n```\n\n## API\n\n### `v8flags(cb)`\n\nFinds the available flags and calls the passed callback with any errors and an array of flag results.\n\n### `v8flags.configfile`\n\nThe name of the cache file for flags.\n\n### `v8flags.configPath`\n\nThe filepath location of the `configfile` above.\n\n## License\n\nMIT\n\n[downloads-image]: http://img.shields.io/npm/dm/v8flags.svg\n[npm-url]: https://www.npmjs.com/package/v8flags\n[npm-image]: http://img.shields.io/npm/v/v8flags.svg\n\n[travis-url]: https://travis-ci.org/gulpjs/v8flags\n[travis-image]: http://img.shields.io/travis/gulpjs/v8flags.svg?label=travis-ci\n\n[appveyor-url]: https://ci.appveyor.com/project/gulpjs/v8flags\n[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/v8flags.svg?label=appveyor\n\n[coveralls-url]: https://coveralls.io/r/gulpjs/v8flags\n[coveralls-image]: http://img.shields.io/coveralls/gulpjs/v8flags/master.svg\n\n[gitter-url]: https://gitter.im/gulpjs/gulp\n[gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg\n# mkdirp-classic\n\nJust a non-deprecated mirror of [mkdirp 0.5.2](https://github.com/substack/node-mkdirp/tree/0.5.1)\nfor use in modules where we depend on the non promise interface.\n\n```\nnpm install mkdirp-classic\n```\n\n## Usage\n\n``` js\n// See the above link\n```\n\n## License\n\nMIT\n# rc\n\nThe non-configurable configuration loader for lazy people.\n\n## Usage\n\nThe only option is to pass rc the name of your app, and your default configuration.\n\n```javascript\nvar conf = require('rc')(appname, {\n //defaults go here.\n port: 2468,\n\n //defaults which are objects will be merged, not replaced\n views: {\n engine: 'jade'\n }\n});\n```\n\n`rc` will return your configuration options merged with the defaults you specify.\nIf you pass in a predefined defaults object, it will be mutated:\n\n```javascript\nvar conf = {};\nrequire('rc')(appname, conf);\n```\n\nIf `rc` finds any config files for your app, the returned config object will have\na `configs` array containing their paths:\n\n```javascript\nvar appCfg = require('rc')(appname, conf);\nappCfg.configs[0] // /etc/appnamerc\nappCfg.configs[1] // /home/dominictarr/.config/appname\nappCfg.config // same as appCfg.configs[appCfg.configs.length - 1]\n```\n\n## Standards\n\nGiven your application name (`appname`), rc will look in all the obvious places for configuration.\n\n * command line arguments, parsed by minimist _(e.g. `--foo baz`, also nested: `--foo.bar=baz`)_\n * environment variables prefixed with `${appname}_`\n * or use \"\\_\\_\" to indicate nested properties <br/> _(e.g. `appname_foo__bar__baz` => `foo.bar.baz`)_\n * if you passed an option `--config file` then from that file\n * a local `.${appname}rc` or the first found looking in `./ ../ ../../ ../../../` etc.\n * `$HOME/.${appname}rc`\n * `$HOME/.${appname}/config`\n * `$HOME/.config/${appname}`\n * `$HOME/.config/${appname}/config`\n * `/etc/${appname}rc`\n * `/etc/${appname}/config`\n * the defaults object you passed in.\n\nAll configuration sources that were found will be flattened into one object,\nso that sources **earlier** in this list override later ones.\n\n## Configuration File Formats\n\nConfiguration files (e.g. `.appnamerc`) may be in either [json](http://json.org/example) or [ini](http://en.wikipedia.org/wiki/INI_file) format. **No** file extension (`.json` or `.ini`) should be used. The example configurations below are equivalent:\n\n#### Formatted as `ini`\n\n```\n; You can include comments in `ini` format if you want.\n\ndependsOn=0.10.0\n\n; `rc` has built-in support for ini sections, see?\n\n[commands]\n www = ./commands/www\n console = ./commands/repl\n\n; You can even do nested sections\n\n[generators.options]\n engine = ejs\n\n[generators.modules]\n new = generate-new\n engine = generate-backend\n\n```\n\n#### Formatted as `json`\n\n```javascript\n{\n // You can even comment your JSON, if you want\n \"dependsOn\": \"0.10.0\",\n \"commands\": {\n \"www\": \"./commands/www\",\n \"console\": \"./commands/repl\"\n },\n \"generators\": {\n \"options\": {\n \"engine\": \"ejs\"\n },\n \"modules\": {\n \"new\": \"generate-new\",\n \"backend\": \"generate-backend\"\n }\n }\n}\n```\n\nComments are stripped from JSON config via [strip-json-comments](https://github.com/sindresorhus/strip-json-comments).\n\n> Since ini, and env variables do not have a standard for types, your application needs be prepared for strings.\n\nTo ensure that string representations of booleans and numbers are always converted into their proper types (especially useful if you intend to do strict `===` comparisons), consider using a module such as [parse-strings-in-object](https://github.com/anselanza/parse-strings-in-object) to wrap the config object returned from rc.\n\n## Simple example demonstrating precedence\nAssume you have an application like this (notice the hard-coded defaults passed to rc):\n```\nconst conf = require('rc')('myapp', {\n port: 12345,\n mode: 'test'\n});\n\nconsole.log(JSON.stringify(conf, null, 2));\n```\nYou also have a file `config.json`, with these contents:\n```\n{\n \"port\": 9000,\n \"foo\": \"from config json\",\n \"something\": \"else\"\n}\n```\nAnd a file `.myapprc` in the same folder, with these contents:\n```\n{\n \"port\": \"3001\",\n \"foo\": \"bar\"\n}\n```\nHere is the expected output from various commands:\n\n`node .`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"bar\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Default `mode` from hard-coded object is retained, but port is overridden by `.myapprc` file (automatically found based on appname match), and `foo` is added.*\n\n`node . --foo baz`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"baz\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Same result as above but `foo` is overridden because command-line arguments take precedence over `.myapprc` file.*\n\n`node . --foo barbar --config config.json`\n```\n{\n \"port\": 9000,\n \"mode\": \"test\",\n \"foo\": \"barbar\",\n \"something\": \"else\",\n \"_\": [],\n \"config\": \"config.json\",\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\",\n \"config.json\"\n ]\n}\n```\n*Now the `port` comes from the `config.json` file specified (overriding the value from `.myapprc`), and `foo` value is overriden by command-line despite also being specified in the `config.json` file.*\n \n\n## Advanced Usage\n\n#### Pass in your own `argv`\n\nYou may pass in your own `argv` as the third argument to `rc`. This is in case you want to [use your own command-line opts parser](https://github.com/dominictarr/rc/pull/12).\n\n```javascript\nrequire('rc')(appname, defaults, customArgvParser);\n```\n\n## Pass in your own parser\n\nIf you have a special need to use a non-standard parser,\nyou can do so by passing in the parser as the 4th argument.\n(leave the 3rd as null to get the default args parser)\n\n```javascript\nrequire('rc')(appname, defaults, null, parser);\n```\n\nThis may also be used to force a more strict format,\nsuch as strict, valid JSON only.\n\n## Note on Performance\n\n`rc` is running `fs.statSync`-- so make sure you don't use it in a hot code path (e.g. a request handler) \n\n## License\n\nMulti-licensed under the two-clause BSD License, MIT License, or Apache License, version 2.0\n# axios // helpers\n\nThe modules found in `helpers/` should be generic modules that are _not_ specific to the domain logic of axios. These modules could theoretically be published to npm on their own and consumed by other modules or apps. Some examples of generic modules are things like:\n\n- Browser polyfills\n- Managing cookies\n- Parsing HTTP headers\n# mime-db\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-image]][node-url]\n[![Build Status][ci-image]][ci-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n\nThis is a large database of mime types and information about them.\nIt consists of a single, public JSON file and does not include any logic,\nallowing it to remain as un-opinionated as possible with an API.\nIt aggregates data from the following sources:\n\n- http://www.iana.org/assignments/media-types/media-types.xhtml\n- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types\n- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types\n\n## Installation\n\n```bash\nnpm install mime-db\n```\n\n### Database Download\n\nIf you're crazy enough to use this in the browser, you can just grab the\nJSON file using [jsDelivr](https://www.jsdelivr.com/). It is recommended to\nreplace `master` with [a release tag](https://github.com/jshttp/mime-db/tags)\nas the JSON format may change in the future.\n\n```\nhttps://cdn.jsdelivr.net/gh/jshttp/mime-db@master/db.json\n```\n\n## Usage\n\n```js\nvar db = require('mime-db')\n\n// grab data on .js files\nvar data = db['application/javascript']\n```\n\n## Data Structure\n\nThe JSON file is a map lookup for lowercased mime types.\nEach mime type has the following properties:\n\n- `.source` - where the mime type is defined.\n If not set, it's probably a custom media type.\n - `apache` - [Apache common media types](http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)\n - `iana` - [IANA-defined media types](http://www.iana.org/assignments/media-types/media-types.xhtml)\n - `nginx` - [nginx media types](http://hg.nginx.org/nginx/raw-file/default/conf/mime.types)\n- `.extensions[]` - known extensions associated with this mime type.\n- `.compressible` - whether a file of this type can be gzipped.\n- `.charset` - the default charset associated with this type, if any.\n\nIf unknown, every property could be `undefined`.\n\n## Contributing\n\nTo edit the database, only make PRs against `src/custom-types.json` or\n`src/custom-suffix.json`.\n\nThe `src/custom-types.json` file is a JSON object with the MIME type as the\nkeys and the values being an object with the following keys:\n\n- `compressible` - leave out if you don't know, otherwise `true`/`false` to\n indicate whether the data represented by the type is typically compressible.\n- `extensions` - include an array of file extensions that are associated with\n the type.\n- `notes` - human-readable notes about the type, typically what the type is.\n- `sources` - include an array of URLs of where the MIME type and the associated\n extensions are sourced from. This needs to be a [primary source](https://en.wikipedia.org/wiki/Primary_source);\n links to type aggregating sites and Wikipedia are _not acceptable_.\n\nTo update the build, run `npm run build`.\n\n### Adding Custom Media Types\n\nThe best way to get new media types included in this library is to register\nthem with the IANA. The community registration procedure is outlined in\n[RFC 6838 section 5](http://tools.ietf.org/html/rfc6838#section-5). Types\nregistered with the IANA are automatically pulled into this library.\n\nIf that is not possible / feasible, they can be added directly here as a\n\"custom\" type. To do this, it is required to have a primary source that\ndefinitively lists the media type. If an extension is going to be listed as\nassociateed with this media type, the source must definitively link the\nmedia type and extension as well.\n\n[ci-image]: https://badgen.net/github/checks/jshttp/mime-db/master?label=ci\n[ci-url]: https://github.com/jshttp/mime-db/actions?query=workflow%3Aci\n[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-db/master\n[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master\n[node-image]: https://badgen.net/npm/node/mime-db\n[node-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/mime-db\n[npm-url]: https://npmjs.org/package/mime-db\n[npm-version-image]: https://badgen.net/npm/v/mime-db\n# <img src=\"docs_app/assets/Rx_Logo_S.png\" alt=\"RxJS Logo\" width=\"86\" height=\"86\"> RxJS: Reactive Extensions For JavaScript\n\n[](https://circleci.com/gh/ReactiveX/rxjs/tree/6.x)\n[](http://badge.fury.io/js/%40reactivex%2Frxjs)\n[](https://gitter.im/Reactive-Extensions/RxJS?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)\n\n# RxJS 6 Stable\n\n### MIGRATION AND RELEASE INFORMATION:\n\nFind out how to update to v6, **automatically update your TypeScript code**, and more!\n\n- [Current home is MIGRATION.md](./docs_app/content/guide/v6/migration.md)\n\n### FOR V 5.X PLEASE GO TO [THE 5.0 BRANCH](https://github.com/ReactiveX/rxjs/tree/5.x)\n\nReactive Extensions Library for JavaScript. This is a rewrite of [Reactive-Extensions/RxJS](https://github.com/Reactive-Extensions/RxJS) and is the latest production-ready version of RxJS. This rewrite is meant to have better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.\n\n[Apache 2.0 License](LICENSE.txt)\n\n- [Code of Conduct](CODE_OF_CONDUCT.md)\n- [Contribution Guidelines](CONTRIBUTING.md)\n- [Maintainer Guidelines](doc_app/content/maintainer-guidelines.md)\n- [API Documentation](https://rxjs.dev/)\n\n## Versions In This Repository\n\n- [master](https://github.com/ReactiveX/rxjs/commits/master) - This is all of the current, unreleased work, which is against v6 of RxJS right now\n- [stable](https://github.com/ReactiveX/rxjs/commits/stable) - This is the branch for the latest version you'd get if you do `npm install rxjs`\n\n## Important\n\nBy contributing or commenting on issues in this repository, whether you've read them or not, you're agreeing to the [Contributor Code of Conduct](CODE_OF_CONDUCT.md). Much like traffic laws, ignorance doesn't grant you immunity.\n\n## Installation and Usage\n\n### ES6 via npm\n\n```sh\nnpm install rxjs\n```\n\nIt's recommended to pull in the Observable creation methods you need directly from `'rxjs'` as shown below with `range`. And you can pull in any operator you need from one spot, under `'rxjs/operators'`.\n\n```ts\nimport { range } from \"rxjs\";\nimport { map, filter } from \"rxjs/operators\";\n\nrange(1, 200)\n .pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n )\n .subscribe(x => console.log(x));\n```\n\nHere, we're using the built-in `pipe` method on Observables to combine operators. See [pipeable operators](https://github.com/ReactiveX/rxjs/blob/master/doc/pipeable-operators.md) for more information.\n\n### CommonJS via npm\n\nTo install this library for CommonJS (CJS) usage, use the following command:\n\n```sh\nnpm install rxjs\n```\n\n(Note: destructuring available in Node 8+)\n\n```js\nconst { range } = require('rxjs');\nconst { map, filter } = require('rxjs/operators');\n\nrange(1, 200).pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n).subscribe(x => console.log(x));\n```\n\n### CDN\n\nFor CDN, you can use [unpkg](https://unpkg.com/):\n\nhttps://unpkg.com/rxjs/bundles/rxjs.umd.min.js\n\nThe global namespace for rxjs is `rxjs`:\n\n```js\nconst { range } = rxjs;\nconst { map, filter } = rxjs.operators;\n\nrange(1, 200)\n .pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n )\n .subscribe(x => console.log(x));\n```\n\n## Goals\n\n- Smaller overall bundles sizes\n- Provide better performance than preceding versions of RxJS\n- To model/follow the [Observable Spec Proposal](https://github.com/zenparsing/es-observable) to the observable\n- Provide more modular file structure in a variety of formats\n- Provide more debuggable call stacks than preceding versions of RxJS\n\n## Building/Testing\n\n- `npm run build_all` - builds everything\n- `npm test` - runs tests\n- `npm run test_no_cache` - run test with `ts-node` set to false\n\n## Performance Tests\n\nRun `npm run build_perf` or `npm run perf` to run the performance tests with `protractor`.\n\nRun `npm run perf_micro [operator]` to run micro performance test benchmarking operator.\n\n## Adding documentation\n\nWe appreciate all contributions to the documentation of any type. All of the information needed to get the docs app up and running locally as well as how to contribute can be found in the [documentation directory](./docs_app).\n\n## Generating PNG marble diagrams\n\nThe script `npm run tests2png` requires some native packages installed locally: `imagemagick`, `graphicsmagick`, and `ghostscript`.\n\nFor Mac OS X with [Homebrew](http://brew.sh/):\n\n- `brew install imagemagick`\n- `brew install graphicsmagick`\n- `brew install ghostscript`\n- You may need to install the Ghostscript fonts manually:\n - Download the tarball from the [gs-fonts project](https://sourceforge.net/projects/gs-fonts)\n - `mkdir -p /usr/local/share/ghostscript && tar zxvf /path/to/ghostscript-fonts.tar.gz -C /usr/local/share/ghostscript`\n\nFor Debian Linux:\n\n- `sudo add-apt-repository ppa:dhor/myway`\n- `apt-get install imagemagick`\n- `apt-get install graphicsmagick`\n- `apt-get install ghostscript`\n\nFor Windows and other Operating Systems, check the download instructions here:\n\n- http://imagemagick.org\n- http://www.graphicsmagick.org\n- http://www.ghostscript.com/\n# node-gyp-build\n\n> Build tool and bindings loader for [`node-gyp`][node-gyp] that supports prebuilds.\n\n```\nnpm install node-gyp-build\n```\n\n[](https://github.com/prebuild/node-gyp-build/actions/workflows/test.yml)\n\nUse together with [`prebuildify`][prebuildify] to easily support prebuilds for your native modules.\n\n## Usage\n\n> **Note.** Prebuild names have changed in [`prebuildify@3`][prebuildify] and `node-gyp-build@4`. Please see the documentation below.\n\n`node-gyp-build` works similar to [`node-gyp build`][node-gyp] except that it will check if a build or prebuild is present before rebuilding your project.\n\nIt's main intended use is as an npm install script and bindings loader for native modules that bundle prebuilds using [`prebuildify`][prebuildify].\n\nFirst add `node-gyp-build` as an install script to your native project\n\n``` js\n{\n ...\n \"scripts\": {\n \"install\": \"node-gyp-build\"\n }\n}\n```\n\nThen in your `index.js`, instead of using the [`bindings`](https://www.npmjs.com/package/bindings) module use `node-gyp-build` to load your binding.\n\n``` js\nvar binding = require('node-gyp-build')(__dirname)\n```\n\nIf you do these two things and bundle prebuilds with [`prebuildify`][prebuildify] your native module will work for most platforms\nwithout having to compile on install time AND will work in both node and electron without the need to recompile between usage.\n\nUsers can override `node-gyp-build` and force compiling by doing `npm install --build-from-source`.\n\nPrebuilds will be attempted loaded from `MODULE_PATH/prebuilds/...` and then next `EXEC_PATH/prebuilds/...` (the latter allowing use with `zeit/pkg`)\n\n## Supported prebuild names\n\nIf so desired you can bundle more specific flavors, for example `musl` builds to support Alpine, or targeting a numbered ARM architecture version.\n\nThese prebuilds can be bundled in addition to generic prebuilds; `node-gyp-build` will try to find the most specific flavor first. Prebuild filenames are composed of _tags_. The runtime tag takes precedence, as does an `abi` tag over `napi`. For more details on tags, please see [`prebuildify`][prebuildify].\n\nValues for the `libc` and `armv` tags are auto-detected but can be overridden through the `LIBC` and `ARM_VERSION` environment variables, respectively.\n\n## License\n\nMIT\n\n[prebuildify]: https://github.com/prebuild/prebuildify\n[node-gyp]: https://www.npmjs.com/package/node-gyp\n# NEAR CLI (command line interface)\n\n[](https://gitpod.io/#https://github.com/near/near-cli)\n\nNEAR CLI is a Node.js application that relies on [`near-api-js`](https://github.com/near/near-api-js) to connect to and interact with the NEAR blockchain. Create accounts, access keys, sign & send transactions with this versatile command line interface tool.\n\n**Note:** Node.js version 10+ is required to run NEAR CLI.\n\n## Release notes\n\n**Release notes and unreleased changes can be found in the [CHANGELOG](CHANGELOG.md)**\n\n## Overview\n\n_Click on a command for more information and examples._\n\n| Command | Description |\n| ----------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |\n| **ACCESS KEYS** | |\n| [`near login`](#near-login) | stores a full access key locally using [NEAR Wallet](https://wallet.testnet.near.org/) |\n| [`near keys`](#near-keys) | displays all access keys and their details for a given account |\n| [`near generate-key`](#near-generate-key) | generates a local key pair **or** shows public key & [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts) |\n| [`near add-key`](#near-add-key) | adds a new access key to an account |\n| [`near delete-key`](#near-delete-key) | deletes an access key from an account |\n| **ACCOUNTS** | |\n| [`near create-account`](#near-create-account) | creates an account |\n| [`near state`](#near-state) | shows general details of an account |\n| [`near keys`](#near-keys) | displays all access keys for a given account |\n| [`near send`](#near-send) | sends tokens from one account to another |\n| [`near delete`](#near-delete) | deletes an account and transfers remaining balance to a beneficiary account |\n| **CONTRACTS** | |\n| [`near deploy`](#near-deploy) | deploys a smart contract to the NEAR blockchain |\n| [`near dev-deploy`](#near-dev-deploy) | creates a development account and deploys a contract to it _(`testnet` only)_ |\n| [`near call`](#near-call) | makes a contract call which can invoke `change` _or_ `view` methods |\n| [`near view`](#near-view) | makes a contract call which can **only** invoke a `view` method |\n| **TRANSACTIONS** | |\n| [`near tx-status`](#near-tx-status) | queries a transaction's status by `txHash` |\n| **VALIDATORS** | |\n| [`near validators current`](#near-validators-current) | displays current [epoch](http://docs.near.org/docs/concepts/epoch) validator pool details |\n| [`near validators next`](#near-validators-next) | displays validator details for the next [epoch](http://docs.near.org/docs/concepts/epoch) |\n| [`near proposals`](#near-proposals) | displays validator proposals for the [epoch](http://docs.near.org/docs/concepts/epoch) _after_ next |\n| **JS-SDK** | |\n| [`near js`](#near-js) | Work with JS contract enclave |\n| **REPL** | |\n| [`near repl`](#near-repl) | launches an interactive connection to the NEAR blockchain ([REPL](https://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop)) |\n| | can also run a JS/TS file which exports an async main function that takes a [context](./context/index.d.ts) object |\n\n[ [**OPTIONS**](#options) ]\n\n> For EVM support see [Project Aurora's](https://aurora.dev) [`aurora-cli`](https://github.com/aurora-is-near/aurora-cli).\n\n---\n\n## Setup\n\n### Installation\n\n> Make sure you have a current version of `npm` and `NodeJS` installed.\n\n#### Mac and Linux\n\n1. Install `npm` and `node` using a package manager like `nvm` as sometimes there are issues using Ledger due to how OS X handles node packages related to USB devices. [[click here]](https://nodejs.org/en/download/package-manager/)\n2. Ensure you have installed Node version 12 or above.\n3. Install `near-cli` globally by running:\n\n```bash\nnpm install -g near-cli\n```\n\n#### Windows\n\n> For Windows users, we recommend using Windows Subsystem for Linux (`WSL`).\n\n1. Install `WSL` [[click here]](https://docs.microsoft.com/en-us/windows/wsl/install-manual#downloading-distros)\n2. Install `npm` [[click here]](https://www.npmjs.com/get-npm)\n3. Install ` Node.js` [ [ click here ]](https://nodejs.org/en/download/package-manager/)\n4. Change `npm` default directory [ [ click here ] ](https://docs.npmjs.com/resolving-eacces-permissions-errors-when-installing-packages-globally#manually-change-npms-default-directory)\n - This is to avoid any permission issues with `WSL`\n5. Open `WSL` and install `near-cli` globally by running:\n\n```bash\nnpm install -g near-cli\n```\n\n---\n\n### Network selection\n\n> The default network for `near-cli` is `testnet`.\n\n- You can change the network by prepending an environment variable to your command.\n\n```bash\nNEAR_ENV=betanet near send ...\n```\n\n- Alternatively, you can set up a global environment variable by running:\n\n```bash\nexport NEAR_ENV=mainnet\n```\n\n---\n\n### Custom RPC server selection\nYou can set custom RPC server URL by setting this env variables:\n```bash\nNEAR_CLI_MAINNET_RPC_SERVER_URL\nNEAR_CLI_TESTNET_RPC_SERVER_URL\nNEAR_CLI_BETANET_RPC_SERVER_URL\nNEAR_CLI_GUILDNET_RPC_SERVER_URL\nNEAR_CLI_LOCALNET_RPC_SERVER_URL\nNEAR_CLI_SHARDNET_RPC_SERVER_URL\nNEAR_CLI_CI_RPC_SERVER_URL\n```\nClear them in case you want to get back to the default RPC server.\n\nExample:\n```bash\nexport NEAR_CLI_TESTNET_RPC_SERVER_URL=<put_your_rpc_server_url_here>\n```\n---\n### RPC server API Keys\nSome RPC servers may require that you provide a valid API key to use them.\n\nYou can set `x-api-key` for a server by running the next command:\n```bash\nnear set-api-key <rpc-server-url> <api-key>\n```\nThis API Key will be saved in a config and used for each command you execute with this RPC URL.\n\n---\n\n## Access Keys\n\n### `near login`\n\n> locally stores a full access key of an account you created with [NEAR Wallet](https://wallet.testnet.near.org/).\n\n- arguments: `none`\n- options: `default`\n\n**Example:**\n\n```bash\nnear login\n```\n\n#### Access Key Location:\n\n- Once complete you will now have your Access Key stored locally in a hidden directory called `.near-credentials`\n\n - This directory is located at the root of your `HOME` directory:\n - `~/.near-credentials` _(MAC / Linux)_\n - `C:\\Users\\YOUR_ACCOUNT\\.near-credentials` _(Windows)_\n\n- Inside `.near-credentials`, access keys are organized in network subdirectories:\n - `default` _for `testnet`_\n - `betanet`\n - `mainnet`\n- These network subdirectories contain `.JSON` objects with an:\n - `account_id`\n - `private_key`\n - `public_key`\n\n**Example:**\n\n```json\n{\n \"account_id\": \"example-acct.testnet\",\n \"public_key\": \"ed25519:7ns2AZVaG8XZrFrgRw7g8qhgddNTN64Zkz7Eo8JBnV5g\",\n \"private_key\": \"ed25519:4Ijd3vNUmdWJ4L922BxcsGN1aDrdpvUHEgqLQAUSLmL7S2qE9tYR9fqL6DqabGGDxCSHkKwdaAGNcHJ2Sfd\"\n}\n```\n\n---\n\n### `near keys`\n\n> Displays all access keys for a given account.\n\n- arguments: `accountId`\n- options: `default`\n\n**Example:**\n\n```bash\nnear keys client.chainlink.testnet\n```\n\n<details>\n<summary> <strong>Example Response</strong> </summary>\n<p>\n\n```\nKeys for account client.chainlink.testnet\n[\n {\n public_key: 'ed25519:4wrVrZbHrurMYgkcyusfvSJGLburmaw7m3gmCApxgvY4',\n access_key: { nonce: 97, permission: 'FullAccess' }\n },\n {\n public_key: 'ed25519:H9k5eiU4xXS3M4z8HzKJSLaZdqGdGwBG49o7orNC4eZW',\n access_key: {\n nonce: 88,\n permission: {\n FunctionCall: {\n allowance: '18483247987345065500000000',\n receiver_id: 'client.chainlink.testnet',\n method_names: [ 'get_token_price', [length]: 1 ]\n }\n }\n }\n },\n [length]: 2\n]\n```\n\n</p>\n</details>\n\n---\n\n### `near generate-key`\n\n> Creates a key pair locally in `.near-credentials` **or** displays public key from Ledger or seed phrase.\n\n- arguments: `accountId` or `none`\n- options: `--useLedgerKey`, `--seedPhrase`, or `--seedPath`\n\n**Note:** There are several ways to use `generate-key` that return very different results. Please reference the examples below for further details.\n\n---\n\n#### 1) `near generate-key`\n\n> Creates a key pair locally in `.near-credentials` with an [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts) as the accountId. _(hash representation of the public key)_\n\n```bash\nnear generate-key\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nKey pair with ed25519:33Vn9VtNEtWQPPd1f4jf5HzJ5weLcvGHU8oz7o5UnPqy public key for an account \"1e5b1346bdb4fc5ccd465f6757a9082a84bcacfd396e7d80b0c726252fe8b3e8\"\n```\n\n</p>\n</details>\n\n---\n\n#### 2) `near generate-key accountId`\n\n> Creates a key pair locally in `.near-credentials` with an `accountId` that you specify.\n\n**Note:** This does NOT create an account with this name, and will overwrite an existing `.json` file with the same name.\n\n```bash\nnear generate-key example.testnet\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nKey pair with ed25519:CcH3oMEFg8tpJLekyvF7Wp49G81K3QLhGbaWEFwtCjht public key for an account \"example.testnet\"\n```\n\n</p>\n</details>\n\n---\n\n#### 3a) `near generate-key --useLedgerKey`\n\n> Uses a connected Ledger device to display a public key and [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts) using the default HD path (`\"44'/397'/0'/0'/1'\"`)\n\n```bash\nnear generate-key --useLedgerKey\n```\n\nYou should then see the following prompt to confirm this request on your Ledger device:\n\n Make sure to connect your Ledger and open NEAR app\n Waiting for confirmation on Ledger...\n\nAfter confirming the request on your Ledger device, a public key and implicit accountId will be displayed.\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nUsing public key: ed25519:B22RP10g695wyeRvKIWv61NjmQZEkWTMzAYgdfx6oSeB2\nImplicit account: 42c320xc20739fd9a6bqf2f89z61rd14efe5d3de234199bc771235a4bb8b0e1\n```\n\n</p>\n</details>\n\n---\n\n#### 3b) `near generate-key --useLedgerKey=\"HD path you specify\"`\n\n> Uses a connected Ledger device to display a public key and [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts) using a custom HD path.\n\n```bash\nnear generate-key --useLedgerKey=\"44'/397'/0'/0'/2'\"\n```\n\nYou should then see the following prompt to confirm this request on your Ledger device:\n\n Make sure to connect your Ledger and open NEAR app\n Waiting for confirmation on Ledger...\n\nAfter confirming the request on your Ledger device, a public key and implicit accountId will be displayed.\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nUsing public key: ed25519:B22RP10g695wye3dfa32rDjmQZEkWTMzAYgCX6oSeB2\nImplicit account: 42c320xc20739ASD9a6bqf2Dsaf289z61rd14efe5d3de23213789009afDsd5bb8b0e1\n```\n\n</p>\n</details>\n\n---\n\n#### 4a) `near generate-key --seedPhrase=\"your seed phrase\"`\n\n> Uses a seed phrase to display a public key and [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts)\n\n```bash\nnear generate-key --seedPhrase=\"cow moon right send now cool dense quark pretty see light after\"\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Key pair with ed25519:GkMNfc92fwM1AmwH1MTjF4b7UZuceamsq96XPkHsQ9vi public key for an account \"e9fa50ac20522987a87e566fcd6febdc97bd35c8c489999ca8aff465c56969c3\"\n\n</p>\n</details>\n\n---\n\n#### 4b) `near generate-key accountId --seedPhrase=\"your seed phrase\"`\n\n> Uses a seed phrase to display a public key **without** the [implicit account](http://docs.near.org/docs/roles/integrator/implicit-accounts).\n\n```bash\nnear generate-key example.testnet --seedPhrase=\"cow moon right send now cool dense quark pretty see light after\"\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Key pair with ed25519:GkMNfc92fwM1AmwH1MTjF4b7UZuceamsq96XPkHsQ9vi public key for an account \"example.testnet\"\n\n</p>\n</details>\n\n---\n\n### `near add-key`\n\n> Adds an either a **full access** or **function access** key to a given account.\n\n**Note:** You will use an _existing_ full access key for the account you would like to add a _new_ key to. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n#### 1) add a `full access` key\n\n- arguments: `accountId` `publicKey`\n\n**Example:**\n\n```bash\nnear add-key example-acct.testnet Cxg2wgFYrdLTEkMu6j5D6aEZqTb3kXbmJygS48ZKbo1S\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Adding full access key = Cxg2wgFYrdLTEkMu6j5D6aEZqTb3kXbmJygS48ZKbo1S to example-acct.testnet.\n Transaction Id EwU1ooEvkR42HvGoJHu5ou3xLYT3JcgQwFV3fAwevGJg\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/EwU1ooEvkR42HvGoJHu5ou3xLYT3JcgQwFV3fAwevGJg\n\n</p>\n</details>\n\n#### 2) add a `function access` key\n\n- arguments: `accountId` `publicKey` `--contract-id`\n- options: `--method-names` `--allowance`\n\n> `accountId` is the account you are adding the key to\n>\n> `--contract-id` is the contract you are allowing methods to be called on\n>\n> `--method-names` are optional and if omitted, all methods of the `--contract-id` can be called.\n>\n> `--allowance` is the amount of Ⓝ the key is allowed to spend on gas fees _only_. If omitted then key will only be able to call view methods.\n\n**Note:** Each transaction made with this key will have gas fees deducted from the initial allowance and once it runs out a new key must be issued.\n\n**Example:**\n\n```bash\nnear add-key example-acct.testnet GkMNfc92fwM1AmwH1MTjF4b7UZuceamsq96XPkHsQ9vi --contract-id example-contract.testnet --method-names example_method --allowance 30000000000\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Adding function call access key = GkMNfc92fwM1AmwH1MTjF4b7UZuceamsq96XPkHsQ9vi to example-acct.testnet.\n Transaction Id H2BQL9fXVmdTbwkXcMFfZ7qhZqC8fFhsA8KDHFdT9q2r\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/H2BQL9fXVmdTbwkXcMFfZ7qhZqC8fFhsA8KDHFdT9q2r\n\n</p>\n</details>\n\n---\n\n### `near delete-key`\n\n> Deletes an existing key for a given account.\n\n- arguments: `accountId` `publicKey`\n- options: `default`\n\n**Note:** You will need separate full access key for the account you would like to delete a key from. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n**Example:**\n\n```bash\nnear delete-key example-acct.testnet Cxg2wgFYrdLTEkMu6j5D6aEZqTb3kXbmJygS48ZKbo1S\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Transaction Id 4PwW7vjzTCno7W433nu4ieA6FvsAjp7zNFwicNLKjQFT\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/4PwW7vjzTCno7W433nu4ieA6FvsAjp7zNFwicNLKjQFT\n\n</p>\n</details>\n\n---\n\n## Accounts\n\n### `near create-account`\n\n> Creates an account using a `--masterAccount` that will pay for the account's creation and any initial balance.\n\n- arguments: `accountId` `--masterAccount`\n- options: `--initialBalance`\n\n**Note:** You will only be able to create subaccounts of the `--masterAccount` unless the name of the new account is ≥ 32 characters.\n\n**Example**:\n\n```bash\nnear create-account 12345678901234567890123456789012 --masterAccount example-acct.testnet\n```\n\n**Subaccount example:**\n\n```bash\nnear create-account sub-acct.example-acct.testnet --masterAccount example-acct.testnet\n```\n\n**Example using `--initialBalance`:**\n\n```bash\nnear create-account sub-acct2.example-acct.testnet --masterAccount example-acct.testnet --initialBalance 10\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Saving key to '/HOME_DIR/.near-credentials/default/sub-acct2.example-acct.testnet.json'\n Account sub-acct2.example-acct.testnet for network \"default\" was created.\n\n</p>\n</details>\n\n---\n\n### `near state`\n\n> Shows details of an account's state.\n\n- arguments: `accountId`\n- options: `default`\n\n**Example:**\n\n```bash\nnear state example.testnet\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```json\n{\n \"amount\": \"99999999303364037168535000\",\n \"locked\": \"0\",\n \"code_hash\": \"G1PCjeQbvbUsJ8piXNb7Yg6dn3mfivDQN7QkvsVuMt4e\",\n \"storage_usage\": 53528,\n \"storage_paid_at\": 0,\n \"block_height\": 21577354,\n \"block_hash\": \"AWu1mrT3eMJLjqyhNHvMKrrbahN6DqcNxXanB5UH1RjB\",\n \"formattedAmount\": \"99.999999303364037168535\"\n}\n```\n\n</p>\n</details>\n\n---\n\n### `near send`\n\n> Sends NEAR tokens (Ⓝ) from one account to another.\n\n- arguments: `senderId` `receiverId` `amount`\n- options: `default`\n\n**Note:** You will need a full access key for the sending account. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n**Example:**\n\n```bash\nnear send sender.testnet receiver.testnet 10\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Sending 10 NEAR to receiver.testnet from sender.testnet\n Transaction Id BYTr6WNyaEy2ykAiQB9P5VvTyrJcFk6Yw95HPhXC6KfN\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/BYTr6WNyaEy2ykAiQB9P5VvTyrJcFk6Yw95HPhXC6KfN\n\n</p>\n</details>\n\n---\n\n### `near delete`\n\n> Deletes an account and transfers remaining balance to a beneficiary account.\n\n- arguments: `accountId` `beneficiaryId`\n- options: `default`\n\n**Example:**\n\n```bash\nnear delete sub-acct2.example-acct.testnet example-acct.testnet\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Deleting account. Account id: sub-acct2.example-acct.testnet, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, beneficiary: example-acct.testnet\n Transaction Id 4x8xohER1E3yxeYdXPfG8GvXin1ShiaroqE5GdCd5YxX\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/4x8xohER1E3yxeYdXPfG8GvXin1ShiaroqE5GdCd5YxX\n Account sub-acct2.example-acct.testnet for network \"default\" was deleted.\n\n</p>\n</details>\n\n---\n\n## Contracts\n\n### `near deploy`\n\n> Deploys a smart contract to a given accountId.\n\n- arguments: `accountId` `.wasmFile`\n- options: `initFunction` `initArgs` `initGas` `initDeposit`\n\n**Note:** You will need a full access key for the account you are deploying the contract to. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n**Example:**\n\n```bash\nnear deploy --accountId example-contract.testnet --wasmFile out/example.wasm\n```\n\n**Initialize Example:**\n\n```bash\nnear deploy --accountId example-contract.testnet --wasmFile out/example.wasm --initFunction new --initArgs '{\"owner_id\": \"example-contract.testnet\", \"total_supply\": \"10000000\"}'\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Starting deployment. Account id: example-contract.testnet, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, file: main.wasm\n Transaction Id G8GhhPuujMHTRnwursPXE1Lv5iUZ8WUecwiST1PcKWMt\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/G8GhhPuujMHTRnwursPXE1Lv5iUZ8WUecwiST1PcKWMt\n Done deploying to example-contract.testnet\n\n</p>\n</details>\n\n### `near dev-deploy`\n\n> Creates a development account and deploys a smart contract to it. No access keys needed. **_(`testnet` only)_**\n\n- options: `wasmFile`, `initFunction`, `initArgs`, `initGas`, `initDeposit`, `initialBalance`, `force`\n\n**Example:**\n\n```bash\nnear dev-deploy --wasmFile out/example.wasm\n```\n\n**Initialize Example:**\n\n```bash\nnear dev-deploy --wasmFile out/example.wasm --initFunction new --initArgs '{\"owner_id\": \"example-contract.testnet\", \"total_supply\": \"10000000\"}'\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Starting deployment. Account id: dev-1603749005325-6432576, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, file: out/main.wasm\n Transaction Id 5nixQT87KeN3eZFX7zwBLUAKSY4nyjhwzLF27SWWKkAp\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/5nixQT87KeN3eZFX7zwBLUAKSY4nyjhwzLF27SWWKkAp\n Done deploying to dev-1603749005325-6432576\n\n</p>\n</details>\n\n---\n\n### `near call`\n\n> makes a contract call which can modify _or_ view state.\n\n**Note:** Contract calls require a transaction fee (gas) so you will need an access key for the `--accountId` that will be charged. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n- arguments: `contractName` `method_name` `{ args }` `--accountId`\n- options: `--gas` `--deposit`\n\n**Example:**\n\n```bash\nnear call guest-book.testnet addMessage '{\"text\": \"Aloha\"}' --account-id example-acct.testnet\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Scheduling a call: guest-book.testnet.addMessage({\"text\": \"Aloha\"})\n Transaction Id FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK\n ''\n\n</p>\n</details>\n\n---\n\n### `near view`\n\n> Makes a contract call which can **only** view state. _(Call is free of charge)_\n\n- arguments: `contractName` `method_name` `{ args }`\n- options: `default`\n\n**Example:**\n\n```bash\nnear view guest-book.testnet getMessages '{}'\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n View call: guest-book.testnet.getMessages({})\n [\n { premium: false, sender: 'waverlymaven.testnet', text: 'TGIF' },\n {\n premium: true,\n sender: 'waverlymaven.testnet',\n text: 'Hello from New York 🌈'\n },\n { premium: false, sender: 'fhr.testnet', text: 'Hi' },\n { premium: true, sender: 'eugenethedream', text: 'test' },\n { premium: false, sender: 'dongri.testnet', text: 'test' },\n { premium: false, sender: 'dongri.testnet', text: 'hello' },\n { premium: true, sender: 'dongri.testnet', text: 'hey' },\n { premium: false, sender: 'hirokihori.testnet', text: 'hello' },\n { premium: true, sender: 'eugenethedream', text: 'hello' },\n { premium: false, sender: 'example-acct.testnet', text: 'Aloha' },\n [length]: 10\n ]\n\n</p>\n</details>\n\n---\n\n## NEAR EVM Contracts\n\n### `near evm-view`\n\n> Makes an EVM contract call which can **only** view state. _(Call is free of charge)_\n\n- arguments: `evmAccount` `contractName` `methodName` `[arguments]` `--abi` `--accountId`\n- options: `default`\n\n**Example:**\n\n```bash\nnear evm-view evm 0x89dfB1Cd61F05ad3971EC1f83056Fd9793c2D521 getAdopters '[]' --abi /path/to/contract/abi/Adoption.json --accountId test.near\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```json\n[\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0xCBdA96B3F2B8eb962f97AE50C3852CA976740e2B\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\",\n \"0x0000000000000000000000000000000000000000\"\n]\n```\n\n</p>\n</details>\n\n---\n\n### `near evm-call (deprecated)`\n\n> makes an EVM contract call which can modify _or_ view state.\n\n**Note:** Contract calls require a transaction fee (gas) so you will need an access key for the `--accountId` that will be charged. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n- arguments: `evmAccount` `contractName` `methodName` `[arguments]` `--abi` `--accountId`\n- options: `default` (`--gas` and `--deposit` coming soon…)\n\n**Example:**\n\n```bash\nnear evm-call evm 0x89dfB1Cd61F05ad3971EC1f83056Fd9793c2D521 adopt '[\"6\"]' --abi /path/to/contract/abi/Adoption.json --accountId test.near\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Scheduling a call inside evm EVM:\n 0x89dfB1Cd61F05ad3971EC1f83056Fd9793c2D521.adopt()\n with args [ '6' ]\n\n</p>\n</details>\n\n---\n\n### `near evm-dev-init`\n\n> Used for running EVM tests — creates a given number of test accounts on the desired network using a master NEAR account\n\n- arguments: `accountId`\n- options: `numAccounts`\n\n```bash\nNEAR_ENV=betanet near evm-dev-init you.betanet 3\n```\n\nThe above will create 3 subaccounts of `you.betanet`. This is useful for tests that require multiple accounts, for instance, sending fungible tokens back and forth. If the `3` value were to be omitted, it would use the default of 5.\n\n---\n\n## Transactions\n\n### `near tx-status`\n\n> Queries transaction status by hash and accountId.\n\n- arguments: `txHash` `--accountId`\n- options: `default`\n\n**Example:**\n\n```bash\nnear tx-status FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK --accountId guest-book.testnet\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```json\nTransaction guest-book.testnet:FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK\n{\n status: { SuccessValue: '' },\n transaction: {\n signer_id: 'example-acct.testnet',\n public_key: 'ed25519:AXZZKnp6ZcWXyRNdy8FztYrniKf1qt6YZw6mCCReXrDB',\n nonce: 20,\n receiver_id: 'guest-book.testnet',\n actions: [\n {\n FunctionCall: {\n method_name: 'addMessage',\n args: 'eyJ0ZXh0IjoiQWxvaGEifQ==',\n gas: 300000000000000,\n deposit: '0'\n }\n },\n [length]: 1\n ],\n signature: 'ed25519:5S6nZXPU72nzgAsTQLmAFfdVSykdKHWhtPMb5U7duacfPdUjrj8ipJxuRiWkZ4yDodvDNt92wcHLJxGLsyNEsZNB',\n hash: 'FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK'\n },\n transaction_outcome: {\n proof: [ [length]: 0 ],\n block_hash: '6nsjvzt6C52SSuJ8UvfaXTsdrUwcx8JtHfnUj8XjdKy1',\n id: 'FY8hBam2iyQfdHkdR1dp6w5XEPJzJSosX1wUeVPyUvVK',\n outcome: {\n logs: [ [length]: 0 ],\n receipt_ids: [ '7n6wjMgpoBTp22ScLHxeMLzcCvN8Vf5FUuC9PMmCX6yU', [length]: 1 ],\n gas_burnt: 2427979134284,\n tokens_burnt: '242797913428400000000',\n executor_id: 'example-acct.testnet',\n status: {\n SuccessReceiptId: '7n6wjMgpoBTp22ScLHxeMLzcCvN8Vf5FUuC9PMmCX6yU'\n }\n }\n },\n receipts_outcome: [\n {\n proof: [ [length]: 0 ],\n block_hash: 'At6QMrBuFQYgEPAh6fuRBmrTAe9hXTY1NzAB5VxTH1J2',\n id: '7n6wjMgpoBTp22ScLHxeMLzcCvN8Vf5FUuC9PMmCX6yU',\n outcome: {\n logs: [ [length]: 0 ],\n receipt_ids: [ 'FUttfoM2odAhKNQrJ8F4tiBpQJPYu66NzFbxRKii294e', [length]: 1 ],\n gas_burnt: 3559403233496,\n tokens_burnt: '355940323349600000000',\n executor_id: 'guest-book.testnet',\n status: { SuccessValue: '' }\n }\n },\n {\n proof: [ [length]: 0 ],\n block_hash: 'J7KjpMPzAqE7iX82FAQT3qERDs6UR1EAqBLPJXBzoLCk',\n id: 'FUttfoM2odAhKNQrJ8F4tiBpQJPYu66NzFbxRKii294e',\n outcome: {\n logs: [ [length]: 0 ],\n receipt_ids: [ [length]: 0 ],\n gas_burnt: 0,\n tokens_burnt: '0',\n executor_id: 'example-acct.testnet',\n status: { SuccessValue: '' }\n }\n },\n [length]: 2\n ]\n}\n```\n\n</p>\n</details>\n\n---\n\n## Validators\n\n### `near validators current`\n\n> Displays details of current validators.\n>\n> - amount staked\n> - number of seats\n> - percentage of uptime\n> - expected block production\n> - blocks actually produced\n\n- arguments: `current`\n- options: `default`\n\n**Example:**\n\n```bash\nnear validators current\n```\n\n**Example for `mainnet`:**\n\n```bash\nNEAR_ENV=mainnet near validators current\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nValidators (total: 49, seat price: 1,976,588):\n.--------------------------------------------------------------------------------------------------------------------.\n| Validator Id | Stake | Seats | % Online | Blocks produced | Blocks expected |\n|----------------------------------------------|------------|---------|----------|-----------------|-----------------|\n| cryptium.poolv1.near | 13,945,727 | 7 | 100% | 1143 | 1143 |\n| astro-stakers.poolv1.near | 11,660,189 | 5 | 100% | 817 | 817 |\n| blockdaemon.poolv1.near | 11,542,867 | 5 | 76.74% | 627 | 817 |\n| zavodil.poolv1.near | 11,183,187 | 5 | 100% | 818 | 818 |\n| bisontrails.poolv1.near | 10,291,696 | 5 | 99.38% | 810 | 815 |\n| dokiacapital.poolv1.near | 7,906,352 | 3 | 99.54% | 650 | 653 |\n| chorusone.poolv1.near | 7,480,508 | 3 | 100% | 490 | 490 |\n| figment.poolv1.near | 6,931,070 | 3 | 100% | 489 | 489 |\n| stardust.poolv1.near | 6,401,678 | 3 | 100% | 491 | 491 |\n| anonymous.poolv1.near | 6,291,821 | 3 | 97.55% | 479 | 491 |\n| d1.poolv1.near | 6,265,109 | 3 | 100% | 491 | 491 |\n| near8888.poolv1.near | 6,202,968 | 3 | 99.38% | 486 | 489 |\n| rekt.poolv1.near | 5,950,212 | 3 | 100% | 490 | 490 |\n| epic.poolv1.near | 5,639,256 | 2 | 100% | 326 | 326 |\n| fresh.poolv1.near | 5,460,410 | 2 | 100% | 327 | 327 |\n| buildlinks.poolv1.near | 4,838,398 | 2 | 99.38% | 325 | 327 |\n| jubi.poolv1.near | 4,805,921 | 2 | 100% | 326 | 326 |\n| openshards.poolv1.near | 4,644,553 | 2 | 100% | 326 | 326 |\n| jazza.poolv1.near | 4,563,432 | 2 | 100% | 327 | 327 |\n| northernlights.poolv1.near | 4,467,978 | 2 | 99.39% | 326 | 328 |\n| inotel.poolv1.near | 4,427,152 | 2 | 100% | 327 | 327 |\n| baziliknear.poolv1.near | 4,261,142 | 2 | 100% | 328 | 328 |\n| stakesabai.poolv1.near | 4,242,618 | 2 | 100% | 326 | 326 |\n| everstake.poolv1.near | 4,234,552 | 2 | 100% | 327 | 327 |\n| stakin.poolv1.near | 4,071,704 | 2 | 100% | 327 | 327 |\n| certusone.poolv1.near | 3,734,505 | 1 | 100% | 164 | 164 |\n| lux.poolv1.near | 3,705,394 | 1 | 100% | 163 | 163 |\n| staked.poolv1.near | 3,683,365 | 1 | 100% | 164 | 164 |\n| lunanova.poolv1.near | 3,597,231 | 1 | 100% | 163 | 163 |\n| appload.poolv1.near | 3,133,163 | 1 | 100% | 163 | 163 |\n| smart-stake.poolv1.near | 3,095,711 | 1 | 100% | 164 | 164 |\n| artemis.poolv1.near | 3,009,462 | 1 | 99.39% | 163 | 164 |\n| moonlet.poolv1.near | 2,790,296 | 1 | 100% | 163 | 163 |\n| nearfans.poolv1.near | 2,771,137 | 1 | 100% | 163 | 163 |\n| nodeasy.poolv1.near | 2,692,745 | 1 | 99.39% | 163 | 164 |\n| erm.poolv1.near | 2,653,524 | 1 | 100% | 164 | 164 |\n| zkv_staketosupportprivacy.poolv1.near | 2,548,343 | 1 | 99.39% | 163 | 164 |\n| dsrvlabs.poolv1.near | 2,542,925 | 1 | 100% | 164 | 164 |\n| 08investinwomen_runbybisontrails.poolv1.near | 2,493,123 | 1 | 100% | 163 | 163 |\n| electric.poolv1.near | 2,400,532 | 1 | 99.39% | 163 | 164 |\n| sparkpool.poolv1.near | 2,378,191 | 1 | 100% | 163 | 163 |\n| hashquark.poolv1.near | 2,376,424 | 1 | 100% | 164 | 164 |\n| masternode24.poolv1.near | 2,355,634 | 1 | 100% | 164 | 164 |\n| sharpdarts.poolv1.near | 2,332,398 | 1 | 99.38% | 162 | 163 |\n| fish.poolv1.near | 2,315,249 | 1 | 100% | 163 | 163 |\n| ashert.poolv1.near | 2,103,327 | 1 | 97.56% | 160 | 164 |\n| 01node.poolv1.near | 2,058,200 | 1 | 100% | 163 | 163 |\n| finoa.poolv1.near | 2,012,304 | 1 | 100% | 163 | 163 |\n| majlovesreg.poolv1.near | 2,005,032 | 1 | 100% | 164 | 164 |\n'--------------------------------------------------------------------------------------------------------------------'\n```\n\n</p>\n</details>\n\n---\n\n### `near validators next`\n\n> Displays details for the next round of validators.\n>\n> - total number of seats available\n> - seat price\n> - amount staked\n> - number of seats assigned per validator\n\n- arguments: `next`\n- options: `default`\n\n**Example:**\n\n```bash\nnear validators next\n```\n\n**Example for `mainnet`:**\n\n```bash\nNEAR_ENV=mainnet near validators next\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nNext validators (total: 49, seat price: 1,983,932):\n.----------------------------------------------------------------------------------------------.\n| Status | Validator | Stake | Seats |\n|----------|----------------------------------------------|--------------------------|---------|\n| Rewarded | cryptium.poolv1.near | 13,945,727 -> 14,048,816 | 7 |\n| Rewarded | astro-stakers.poolv1.near | 11,660,189 -> 11,704,904 | 5 |\n| Rewarded | blockdaemon.poolv1.near | 11,542,867 -> 11,545,942 | 5 |\n| Rewarded | zavodil.poolv1.near | 11,183,187 -> 11,204,123 | 5 |\n| Rewarded | bisontrails.poolv1.near | 10,291,696 -> 10,297,923 | 5 |\n| Rewarded | dokiacapital.poolv1.near | 7,906,352 -> 8,097,275 | 4 |\n| Rewarded | chorusone.poolv1.near | 7,480,508 -> 7,500,576 | 3 |\n| Rewarded | figment.poolv1.near | 6,931,070 -> 6,932,916 | 3 |\n| Rewarded | stardust.poolv1.near | 6,401,678 -> 6,449,363 | 3 |\n| Rewarded | anonymous.poolv1.near | 6,291,821 -> 6,293,497 | 3 |\n| Rewarded | d1.poolv1.near | 6,265,109 -> 6,266,777 | 3 |\n| Rewarded | near8888.poolv1.near | 6,202,968 -> 6,204,620 | 3 |\n| Rewarded | rekt.poolv1.near | 5,950,212 -> 5,951,797 | 2 |\n| Rewarded | epic.poolv1.near | 5,639,256 -> 5,640,758 | 2 |\n| Rewarded | fresh.poolv1.near | 5,460,410 -> 5,461,811 | 2 |\n| Rewarded | buildlinks.poolv1.near | 4,838,398 -> 4,839,686 | 2 |\n| Rewarded | jubi.poolv1.near | 4,805,921 -> 4,807,201 | 2 |\n| Rewarded | openshards.poolv1.near | 4,644,553 -> 4,776,692 | 2 |\n| Rewarded | jazza.poolv1.near | 4,563,432 -> 4,564,648 | 2 |\n| Rewarded | northernlights.poolv1.near | 4,467,978 -> 4,469,168 | 2 |\n| Rewarded | inotel.poolv1.near | 4,427,152 -> 4,428,331 | 2 |\n| Rewarded | baziliknear.poolv1.near | 4,261,142 -> 4,290,338 | 2 |\n| Rewarded | stakesabai.poolv1.near | 4,242,618 -> 4,243,748 | 2 |\n| Rewarded | everstake.poolv1.near | 4,234,552 -> 4,235,679 | 2 |\n| Rewarded | stakin.poolv1.near | 4,071,704 -> 4,072,773 | 2 |\n| Rewarded | certusone.poolv1.near | 3,734,505 -> 3,735,500 | 1 |\n| Rewarded | lux.poolv1.near | 3,705,394 -> 3,716,381 | 1 |\n| Rewarded | staked.poolv1.near | 3,683,365 -> 3,684,346 | 1 |\n| Rewarded | lunanova.poolv1.near | 3,597,231 -> 3,597,836 | 1 |\n| Rewarded | appload.poolv1.near | 3,133,163 -> 3,152,302 | 1 |\n| Rewarded | smart-stake.poolv1.near | 3,095,711 -> 3,096,509 | 1 |\n| Rewarded | artemis.poolv1.near | 3,009,462 -> 3,010,265 | 1 |\n| Rewarded | moonlet.poolv1.near | 2,790,296 -> 2,948,565 | 1 |\n| Rewarded | nearfans.poolv1.near | 2,771,137 -> 2,771,875 | 1 |\n| Rewarded | nodeasy.poolv1.near | 2,692,745 -> 2,693,463 | 1 |\n| Rewarded | erm.poolv1.near | 2,653,524 -> 2,654,231 | 1 |\n| Rewarded | dsrvlabs.poolv1.near | 2,542,925 -> 2,571,865 | 1 |\n| Rewarded | zkv_staketosupportprivacy.poolv1.near | 2,548,343 -> 2,549,022 | 1 |\n| Rewarded | 08investinwomen_runbybisontrails.poolv1.near | 2,493,123 -> 2,493,787 | 1 |\n| Rewarded | masternode24.poolv1.near | 2,355,634 -> 2,456,226 | 1 |\n| Rewarded | fish.poolv1.near | 2,315,249 -> 2,415,831 | 1 |\n| Rewarded | electric.poolv1.near | 2,400,532 -> 2,401,172 | 1 |\n| Rewarded | sparkpool.poolv1.near | 2,378,191 -> 2,378,824 | 1 |\n| Rewarded | hashquark.poolv1.near | 2,376,424 -> 2,377,057 | 1 |\n| Rewarded | sharpdarts.poolv1.near | 2,332,398 -> 2,332,948 | 1 |\n| Rewarded | ashert.poolv1.near | 2,103,327 -> 2,103,887 | 1 |\n| Rewarded | 01node.poolv1.near | 2,058,200 -> 2,058,760 | 1 |\n| Rewarded | finoa.poolv1.near | 2,012,304 -> 2,015,808 | 1 |\n| Rewarded | majlovesreg.poolv1.near | 2,005,032 -> 2,005,566 | 1 |\n'----------------------------------------------------------------------------------------------'\n```\n\n</p>\n</details>\n\n---\n\n### `near proposals`\n\n> Displays validator proposals for [epoch](http://docs.near.org/docs/concepts/epoch) after next.\n>\n> - expected seat price\n> - status of proposals\n> - previous amount staked and new amount that _will_ be staked\n> - amount of seats assigned per validator\n\n- arguments: `none`\n- options: `default`\n\n**Example:**\n\n```bash\nnear proposals\n```\n\n**Example for `mainnet`:**\n\n```bash\nNEAR_ENV=mainnet near proposals\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```bash\nProposals for the epoch after next (new: 51, passing: 49, expected seat price = 1,983,932)\n.--------------------------------------------------------------------------------------------------------.\n| Status | Validator | Stake => New Stake | Seats |\n|--------------------|----------------------------------------------|--------------------------|---------|\n| Proposal(Accepted) | cryptium.poolv1.near | 13,945,727 => 14,041,766 | 7 |\n| Proposal(Accepted) | astro-stakers.poolv1.near | 11,660,189 => 11,705,673 | 5 |\n| Proposal(Accepted) | blockdaemon.poolv1.near | 11,542,867 => 11,545,942 | 5 |\n| Proposal(Accepted) | zavodil.poolv1.near | 11,183,187 => 11,207,805 | 5 |\n| Proposal(Accepted) | bisontrails.poolv1.near | 10,291,696 => 10,300,978 | 5 |\n| Proposal(Accepted) | dokiacapital.poolv1.near | 7,906,352 => 8,097,275 | 4 |\n| Proposal(Accepted) | chorusone.poolv1.near | 7,480,508 => 7,568,268 | 3 |\n| Proposal(Accepted) | figment.poolv1.near | 6,931,070 => 6,932,916 | 3 |\n| Proposal(Accepted) | stardust.poolv1.near | 6,401,678 => 6,449,363 | 3 |\n| Proposal(Accepted) | anonymous.poolv1.near | 6,291,821 => 6,293,497 | 3 |\n| Proposal(Accepted) | d1.poolv1.near | 6,265,109 => 6,266,777 | 3 |\n| Proposal(Accepted) | near8888.poolv1.near | 6,202,968 => 6,204,620 | 3 |\n| Proposal(Accepted) | rekt.poolv1.near | 5,950,212 => 5,951,797 | 2 |\n| Proposal(Accepted) | epic.poolv1.near | 5,639,256 => 5,640,758 | 2 |\n| Proposal(Accepted) | fresh.poolv1.near | 5,460,410 => 5,461,811 | 2 |\n| Proposal(Accepted) | buildlinks.poolv1.near | 4,838,398 => 4,839,686 | 2 |\n| Proposal(Accepted) | jubi.poolv1.near | 4,805,921 => 4,807,201 | 2 |\n| Proposal(Accepted) | openshards.poolv1.near | 4,644,553 => 4,776,692 | 2 |\n| Proposal(Accepted) | jazza.poolv1.near | 4,563,432 => 4,564,648 | 2 |\n| Proposal(Accepted) | northernlights.poolv1.near | 4,467,978 => 4,469,168 | 2 |\n| Proposal(Accepted) | inotel.poolv1.near | 4,427,152 => 4,428,331 | 2 |\n| Proposal(Accepted) | baziliknear.poolv1.near | 4,261,142 => 4,290,891 | 2 |\n| Proposal(Accepted) | stakesabai.poolv1.near | 4,242,618 => 4,243,748 | 2 |\n| Proposal(Accepted) | everstake.poolv1.near | 4,234,552 => 4,235,679 | 2 |\n| Proposal(Accepted) | stakin.poolv1.near | 4,071,704 => 4,072,773 | 2 |\n| Proposal(Accepted) | certusone.poolv1.near | 3,734,505 => 3,735,500 | 1 |\n| Proposal(Accepted) | lux.poolv1.near | 3,705,394 => 3,716,381 | 1 |\n| Proposal(Accepted) | staked.poolv1.near | 3,683,365 => 3,684,346 | 1 |\n| Proposal(Accepted) | lunanova.poolv1.near | 3,597,231 => 3,597,836 | 1 |\n| Proposal(Accepted) | appload.poolv1.near | 3,133,163 => 3,152,302 | 1 |\n| Proposal(Accepted) | smart-stake.poolv1.near | 3,095,711 => 3,096,509 | 1 |\n| Proposal(Accepted) | artemis.poolv1.near | 3,009,462 => 3,010,265 | 1 |\n| Proposal(Accepted) | moonlet.poolv1.near | 2,790,296 => 2,948,565 | 1 |\n| Proposal(Accepted) | nearfans.poolv1.near | 2,771,137 => 2,771,875 | 1 |\n| Proposal(Accepted) | nodeasy.poolv1.near | 2,692,745 => 2,693,463 | 1 |\n| Proposal(Accepted) | erm.poolv1.near | 2,653,524 => 2,654,231 | 1 |\n| Proposal(Accepted) | dsrvlabs.poolv1.near | 2,542,925 => 2,571,865 | 1 |\n| Proposal(Accepted) | zkv_staketosupportprivacy.poolv1.near | 2,548,343 => 2,549,022 | 1 |\n| Proposal(Accepted) | 08investinwomen_runbybisontrails.poolv1.near | 2,493,123 => 2,493,787 | 1 |\n| Proposal(Accepted) | masternode24.poolv1.near | 2,355,634 => 2,456,226 | 1 |\n| Proposal(Accepted) | fish.poolv1.near | 2,315,249 => 2,415,831 | 1 |\n| Proposal(Accepted) | electric.poolv1.near | 2,400,532 => 2,401,172 | 1 |\n| Proposal(Accepted) | sparkpool.poolv1.near | 2,378,191 => 2,378,824 | 1 |\n| Proposal(Accepted) | hashquark.poolv1.near | 2,376,424 => 2,377,057 | 1 |\n| Proposal(Accepted) | sharpdarts.poolv1.near | 2,332,398 => 2,332,948 | 1 |\n| Proposal(Accepted) | ashert.poolv1.near | 2,103,327 => 2,103,887 | 1 |\n| Proposal(Accepted) | 01node.poolv1.near | 2,058,200 => 2,059,314 | 1 |\n| Proposal(Accepted) | finoa.poolv1.near | 2,012,304 => 2,015,808 | 1 |\n| Proposal(Accepted) | majlovesreg.poolv1.near | 2,005,032 => 2,005,566 | 1 |\n| Proposal(Declined) | huobipool.poolv1.near | 1,666,976 | 0 |\n| Proposal(Declined) | hb436_pool.poolv1.near | 500,030 | 0 |\n'--------------------------------------------------------------------------------------------------------'\n\n```\n\n</p>\n</details>\n\n---\n\n## JS Contracts Enclave\n\n### `near js`\nYou can use `near js <command> <args>` to be able to interact with JS enclaved contracts. Run `near js --help` for instructions. An optional `--jsvm <accountId>` argument can be supplied to the following `js` subcommands to point to a different JSVM enclave contract. The default is set to `jsvm.testnet` and `jsvm.near` respectively for testnet and mainnet. Note that anything changing state in the enclave will require a deposit to maintain storage of either the contract bytes or the state of the contract itself.\n\n### `near js deploy`\n\n> Deploys a smart contract to a given accountId on the JSVM enclave.\n\n- arguments: `accountId`, `base64File`, `deposit`\n- options: `jsvm`\n\n**Note:** You will need a full access key for the account you are deploying the contract to. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n**Example:**\n\n```bash\nnear deploy --accountId example-contract.testnet --base64File out/example.base64 --deposit 0.1\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Starting deployment. Account id: example-contract.testnet, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, file: out/example.base64, JSVM: jsvm.testnet\n Transaction Id 4Nxsszgh2LaXPZph37peZKDqPZeJEErPih6n4jWcGDEB\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/4Nxsszgh2LaXPZph37peZKDqPZeJEErPih6n4jWcGDEB\n Done deploying to example-contract.testnet\n\n</p>\n</details>\n\n### `near js dev-deploy`\n\n> Creates a development account and deploys a smart contract to the enclave associated to the dev-account. No access keys needed. **_(`testnet` only)_**\n\n- arguments: `base64File` `deposit`\n- options: `jsvm`\n\n**Example:**\n\n```bash\nnear js dev-deploy --base64File out/example.base64 --deposit 0.1\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Starting deployment. Account id: dev-1653005231830-15694723179173, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, file: out/example.base64, JSVM: jsvm.testnet\n Transaction Id FTVd4TKzy9mrmWvok6qHaoX68cVZnUJp2VqUgH6Y446n\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/FTVd4TKzy9mrmWvok6qHaoX68cVZnUJp2VqUgH6Y446n\n Done deploying to dev-1653005231830-15694723179173\n\n</p>\n</details>\n\n### `near js call`\n\n> makes a contract call which can modify _or_ view state into the JSVM enclase\n\n**Note:** Contract calls require a transaction fee (gas) so you will need an access key for the `--accountId` that will be charged. ([`near login`](http://docs.near.org/docs/tools/near-cli#near-login))\n\n- arguments: `contractName` `methodName` `{ args }` `--accountId` `--deposit`\n- options: `--gas` `--jsvm`\n\n**Example:**\n\n```bash\nnear js call dev-1653005231830-15694723179173 set_status '[\"hello world\"]' --deposit 0.1 --account-id dev-1653005231830-15694723179173\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Scheduling a call in JSVM[jsvm.testnet]: dev-1653005231830-15694723179173.set_status([\"hello world\"]) with attached 0.1 NEAR\n Receipts: 5QUuNwSYrDcEPKuSnU7fKN7YCGfXmdmZR9m3zUSTek7P, 3YU4eFhqBruc4z8KKLZr1U1oY31A6Bfks45GLA2rq5GS\n Log [jsvm.testnet]: dev-1653005231830-15694723179173 set_status with message hello world\n Transaction Id sP8s9REgK9YcZzkudyccg8R968zYWDVGCNv4wxeZsUe\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/sP8s9REgK9YcZzkudyccg8R968zYWDVGCNv4wxeZsUe\n ''\n\n</p>\n</details>\n\n### `near js view`\n\n> Makes a contract call which can **only** view state. _(Call is free of charge and does not require deposit)_\n\n- arguments: `contractName` `method_name` `{ args }`\n- options: `jsvm`\n\n**Example:**\n\n```bash\nnear js view dev-1653005231830-15694723179173 get_status '[\"dev-1653005231830-15694723179173\"]' --accountId dev-1653005231830-15694723179173\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n View call in JSVM[jsvm.testnet]: dev-1653005231830-15694723179173.get_status([\"dev-1653005231830-15694723179173\"])\n Log [jsvm.testnet]: get_status for account_id dev-1653005231830-15694723179173\n 'hello world'\n\n</p>\n</details>\n\n### `near js remove`\n\n> Removes the contract on the JS enclase and refunds all the deposit to the actual account.\n\n- arguments: `accountId`\n- options: `jsvm`\n\n```bash\nnear js remove --accountId dev-1653005231830-15694723179173\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n Removing contract from enclave. Account id: dev-1653005231830-15694723179173, JSVM: jsvm.testnet\n Transaction Id FGSfvoWmhS1fWb6ckpPMYvc7seNaGQ5MU7iSrY43ZWiG\n To see the transaction in the transaction explorer, please open this url in your browser\n https://explorer.testnet.near.org/transactions/FGSfvoWmhS1fWb6ckpPMYvc7seNaGQ5MU7iSrY43ZWiG\n\n</p>\n</details>\n\n## REPL\n\n### `near repl`\n\n> Launches NEAR [REPL](https://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop) _(an interactive JavaScript programming invironment)_ connected to NEAR.\n\n- arguments: `none`\n- options: `--accountId`, `--script`\n\nTo launch, run:\n\n```bash\nnear repl\n```\n\n- You will then be shown a prompt `>` and can begin interacting with NEAR.\n- Try typing the following into your prompt that converts NEAR (Ⓝ) into yoctoNEAR (10^-24):\n\n```bash\nnearAPI.utils.format.parseNearAmount('1000')\n```\n\n> You can also use an `--accountId` with `near repl`.\n\nThe `script` argument allows you to pass the path to a javascript/typescript file that exports a `main` function taking a [`Context`](./context/index.d.ts) as an argument. Anything passed after `--` is passed to the script as the `argv` argument.\n\nNote: you will need to add `near-cli` as a dependency in order to import the types.\n\ne.g.\n\n```ts\nimport { Context } from \"near-cli/context\";\n```\n\n**Example:**\n\n```bash\nnear repl --accountId example-acct.testnet\n```\n\n- Then try console logging `account` after the `>` prompt.\n\n```bash\nconsole.log(account)\n```\n\nOr in a JS files\n\n```js\nmodule.exports.main = async function main({account, near, nearAPI, argv}) {\n console.log(account);\n}\n```\n\n<details>\n<summary><strong>Example Response</strong></summary>\n<p>\n\n```json\nAccount {\n accessKeyByPublicKeyCache: {},\n connection: Connection {\n networkId: 'default',\n provider: JsonRpcProvider { connection: [Object] },\n signer: InMemorySigner { keyStore: [MergeKeyStore] }\n },\n accountId: 'example-acct.testnet',\n _ready: Promise { undefined },\n _state: {\n amount: '98786165075093615800000000',\n locked: '0',\n code_hash: '11111111111111111111111111111111',\n storage_usage: 741,\n storage_paid_at: 0,\n block_height: 21661252,\n block_hash: 'HbAj25dTzP3ssYjNRHov9BQ72UxpHGVqZK1mZwGdGNbo'\n }\n}\n```\n\n</p>\n</details>\n\n> You can also get a private key's public key.\n\n- First, declare a `privateKey` variable:\n\n```js\nconst myPrivateKey =\n \"3fKM9Rr7LHyzhhzmmedXLvc59rayfh1oUYS3VfUcxwpAFQZtdx1G9aTY6i8hG9mQtYoycTEFTBtatgNKHRtYamrS\";\n```\n\n- Then run:\n\n```js\nnearAPI.KeyPair.fromString(myPrivateKey).publicKey.toString();\n```\n\nWith NEAR REPL you have complete access to [`near-api-js`](https://github.com/near/near-api-js) to help you develop on the NEAR platform.\n\n---\n\n## Options\n\n| Option | Description |\n| -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |\n| `--help` | Show help [boolean] |\n| `--version` | Show version number [boolean] |\n| `--nodeUrl, --node_url` | NEAR node URL [string] [default: \"https://rpc.testnet.near.org\"] |\n| `--networkId, --network_id`| NEAR network ID, allows using different keys based on network [string] [default: \"testnet\"] |\n| `--helperUrl` | NEAR contract helper URL [string] |\n| `--keyPath` | Path to master account key [string] |\n| `--accountId, --account_id`| Unique identifier for the account [string] |\n| `--useLedgerKey` | Use Ledger for signing with given HD key path [string] [default: \"44'/397'/0'/0'/1'\"] |\n| `--seedPhrase` | Seed phrase mnemonic [string] |\n| `--seedPath` | HD path derivation [string] [default: \"m/44'/397'/0'\"] |\n| `--walletUrl` | Website for NEAR Wallet [string] |\n| `--contractName` | Account name of contract [string] |\n| `--masterAccount` | Master account used when creating new accounts [string] |\n| `--helperAccount` | Expected top-level account for a network [string] |\n| `-v, --verbose` | Prints out verbose output [boolean] [default: false] |\n|`-f, --force` | Forcefully execute the desired action even if it is unsafe to do so [boolean] [default: false]|\n\n> Got a question? <a href=\"https://stackoverflow.com/questions/tagged/nearprotocol\"> <h8>Ask it on StackOverflow!</h8></a>\n\n## License\n\nThis repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0).\nSee [LICENSE](LICENSE) and [LICENSE-APACHE](LICENSE-APACHE) for details.\n# magic-string\n\n<a href=\"https://travis-ci.org/Rich-Harris/magic-string\">\n <img src=\"http://img.shields.io/travis/Rich-Harris/magic-string.svg\"\n alt=\"build status\">\n</a>\n<a href=\"https://npmjs.org/package/magic-string\">\n <img src=\"https://img.shields.io/npm/v/magic-string.svg\"\n alt=\"npm version\">\n</a>\n<a href=\"https://github.com/Rich-Harris/magic-string/blob/master/LICENSE.md\">\n <img src=\"https://img.shields.io/npm/l/magic-string.svg\"\n alt=\"license\">\n</a>\n\nSuppose you have some source code. You want to make some light modifications to it - replacing a few characters here and there, wrapping it with a header and footer, etc - and ideally you'd like to generate a source map at the end of it. You've thought about using something like [recast](https://github.com/benjamn/recast) (which allows you to generate an AST from some JavaScript, manipulate it, and reprint it with a sourcemap without losing your comments and formatting), but it seems like overkill for your needs (or maybe the source code isn't JavaScript).\n\nYour requirements are, frankly, rather niche. But they're requirements that I also have, and for which I made magic-string. It's a small, fast utility for manipulating strings and generating sourcemaps.\n\n## Installation\n\nmagic-string works in both node.js and browser environments. For node, install with npm:\n\n```bash\nnpm i magic-string\n```\n\nTo use in browser, grab the [magic-string.umd.js](https://unpkg.com/magic-string/dist/magic-string.umd.js) file and add it to your page:\n\n```html\n<script src='magic-string.umd.js'></script>\n```\n\n(It also works with various module systems, if you prefer that sort of thing - it has a dependency on [vlq](https://github.com/Rich-Harris/vlq).)\n\n## Usage\n\nThese examples assume you're in node.js, or something similar:\n\n```js\nimport MagicString from 'magic-string';\nimport fs from 'fs'\n\nconst s = new MagicString('problems = 99');\n\ns.overwrite(0, 8, 'answer');\ns.toString(); // 'answer = 99'\n\ns.overwrite(11, 13, '42'); // character indices always refer to the original string\ns.toString(); // 'answer = 42'\n\ns.prepend('var ').append(';'); // most methods are chainable\ns.toString(); // 'var answer = 42;'\n\nconst map = s.generateMap({\n source: 'source.js',\n file: 'converted.js.map',\n includeContent: true\n}); // generates a v3 sourcemap\n\nfs.writeFileSync('converted.js', s.toString());\nfs.writeFileSync('converted.js.map', map.toString());\n```\n\nYou can pass an options argument:\n\n```js\nconst s = new MagicString(someCode, {\n // both these options will be used if you later\n // call `bundle.addSource( s )` - see below\n filename: 'foo.js',\n indentExclusionRanges: [/*...*/]\n});\n```\n\n## Methods\n\n### s.addSourcemapLocation( index )\n\nAdds the specified character index (with respect to the original string) to sourcemap mappings, if `hires` is `false` (see below).\n\n### s.append( content )\n\nAppends the specified content to the end of the string. Returns `this`.\n\n### s.appendLeft( index, content )\n\nAppends the specified `content` at the `index` in the original string. If a range *ending* with `index` is subsequently moved, the insert will be moved with it. Returns `this`. See also `s.prependLeft(...)`.\n\n### s.appendRight( index, content )\n\nAppends the specified `content` at the `index` in the original string. If a range *starting* with `index` is subsequently moved, the insert will be moved with it. Returns `this`. See also `s.prependRight(...)`.\n\n### s.clone()\n\nDoes what you'd expect.\n\n### s.generateDecodedMap( options )\n\nGenerates a sourcemap object with raw mappings in array form, rather than encoded as a string. See `generateMap` documentation below for options details. Useful if you need to manipulate the sourcemap further, but most of the time you will use `generateMap` instead.\n\n### s.generateMap( options )\n\nGenerates a [version 3 sourcemap](https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit). All options are, well, optional:\n\n* `file` - the filename where you plan to write the sourcemap\n* `source` - the filename of the file containing the original source\n* `includeContent` - whether to include the original content in the map's `sourcesContent` array\n* `hires` - whether the mapping should be high-resolution. Hi-res mappings map every single character, meaning (for example) your devtools will always be able to pinpoint the exact location of function calls and so on. With lo-res mappings, devtools may only be able to identify the correct line - but they're quicker to generate and less bulky. If sourcemap locations have been specified with `s.addSourceMapLocation()`, they will be used here.\n\nThe returned sourcemap has two (non-enumerable) methods attached for convenience:\n\n* `toString` - returns the equivalent of `JSON.stringify(map)`\n* `toUrl` - returns a DataURI containing the sourcemap. Useful for doing this sort of thing:\n\n```js\ncode += '\\n//# sourceMappingURL=' + map.toUrl();\n```\n\n### s.indent( prefix[, options] )\n\nPrefixes each line of the string with `prefix`. If `prefix` is not supplied, the indentation will be guessed from the original content, falling back to a single tab character. Returns `this`.\n\nThe `options` argument can have an `exclude` property, which is an array of `[start, end]` character ranges. These ranges will be excluded from the indentation - useful for (e.g.) multiline strings.\n\n### s.insertLeft( index, content )\n\n**DEPRECATED** since 0.17 – use `s.appendLeft(...)` instead\n\n### s.insertRight( index, content )\n\n**DEPRECATED** since 0.17 – use `s.prependRight(...)` instead\n\n### s.locate( index )\n\n**DEPRECATED** since 0.10 – see [#30](https://github.com/Rich-Harris/magic-string/pull/30)\n\n### s.locateOrigin( index )\n\n**DEPRECATED** since 0.10 – see [#30](https://github.com/Rich-Harris/magic-string/pull/30)\n\n### s.move( start, end, newIndex )\n\nMoves the characters from `start` and `end` to `index`. Returns `this`.\n\n### s.overwrite( start, end, content[, options] )\n\nReplaces the characters from `start` to `end` with `content`. The same restrictions as `s.remove()` apply. Returns `this`.\n\nThe fourth argument is optional. It can have a `storeName` property — if `true`, the original name will be stored for later inclusion in a sourcemap's `names` array — and a `contentOnly` property which determines whether only the content is overwritten, or anything that was appended/prepended to the range as well.\n\n### s.prepend( content )\n\nPrepends the string with the specified content. Returns `this`.\n\n### s.prependLeft ( index, content )\n\nSame as `s.appendLeft(...)`, except that the inserted content will go *before* any previous appends or prepends at `index`\n\n### s.prependRight ( index, content )\n\nSame as `s.appendRight(...)`, except that the inserted content will go *before* any previous appends or prepends at `index`\n\n### s.remove( start, end )\n\nRemoves the characters from `start` to `end` (of the original string, **not** the generated string). Removing the same content twice, or making removals that partially overlap, will cause an error. Returns `this`.\n\n### s.slice( start, end )\n\nReturns the content of the generated string that corresponds to the slice between `start` and `end` of the original string. Throws error if the indices are for characters that were already removed.\n\n### s.snip( start, end )\n\nReturns a clone of `s`, with all content before the `start` and `end` characters of the original string removed.\n\n### s.toString()\n\nReturns the generated string.\n\n### s.trim([ charType ])\n\nTrims content matching `charType` (defaults to `\\s`, i.e. whitespace) from the start and end. Returns `this`.\n\n### s.trimStart([ charType ])\n\nTrims content matching `charType` (defaults to `\\s`, i.e. whitespace) from the start. Returns `this`.\n\n### s.trimEnd([ charType ])\n\nTrims content matching `charType` (defaults to `\\s`, i.e. whitespace) from the end. Returns `this`.\n\n### s.trimLines()\n\nRemoves empty lines from the start and end. Returns `this`.\n\n### s.isEmpty()\n\nReturns true if the resulting source is empty (disregarding white space).\n\n## Bundling\n\nTo concatenate several sources, use `MagicString.Bundle`:\n\n```js\nconst bundle = new MagicString.Bundle();\n\nbundle.addSource({\n filename: 'foo.js',\n content: new MagicString('var answer = 42;')\n});\n\nbundle.addSource({\n filename: 'bar.js',\n content: new MagicString('console.log( answer )')\n});\n\n// Advanced: a source can include an `indentExclusionRanges` property\n// alongside `filename` and `content`. This will be passed to `s.indent()`\n// - see documentation above\n\nbundle.indent() // optionally, pass an indent string, otherwise it will be guessed\n .prepend('(function () {\\n')\n .append('}());');\n\nbundle.toString();\n// (function () {\n// var answer = 42;\n// console.log( answer );\n// }());\n\n// options are as per `s.generateMap()` above\nconst map = bundle.generateMap({\n file: 'bundle.js',\n includeContent: true,\n hires: true\n});\n```\n\nAs an alternative syntax, if you a) don't have `filename` or `indentExclusionRanges` options, or b) passed those in when you used `new MagicString(...)`, you can simply pass the `MagicString` instance itself:\n\n```js\nconst bundle = new MagicString.Bundle();\nconst source = new MagicString(someCode, {\n filename: 'foo.js'\n});\n\nbundle.addSource(source);\n```\n\n## License\n\nMIT\n# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n cb = once(cb)\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n cb = cb.once()\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n\nTo check whether you function has been called, use `fn.called`. Once the\nfunction is called for the first time the return value of the original\nfunction is saved in `fn.value` and subsequent calls will continue to\nreturn this value.\n\n```javascript\nvar once = require('once')\n\nfunction load (cb) {\n cb = once(cb)\n var stream = createStream()\n stream.once('data', cb)\n stream.once('end', function () {\n if (!cb.called) cb(new Error('not found'))\n })\n}\n```\n\n## `once.strict(func)`\n\nThrow an error if the function is called twice.\n\nSome functions are expected to be called only once. Using `once` for them would\npotentially hide logical errors.\n\nIn the example below, the `greet` function has to call the callback only once:\n\n```javascript\nfunction greet (name, cb) {\n // return is missing from the if statement\n // when no name is passed, the callback is called twice\n if (!name) cb('Hello anonymous')\n cb('Hello ' + name)\n}\n\nfunction log (msg) {\n console.log(msg)\n}\n\n// this will print 'Hello anonymous' but the logical error will be missed\ngreet(null, once(msg))\n\n// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time\ngreet(null, once.strict(msg))\n```\nare-we-there-yet\n----------------\n\nTrack complex hiearchies of asynchronous task completion statuses. This is\nintended to give you a way of recording and reporting the progress of the big\nrecursive fan-out and gather type workflows that are so common in async.\n\nWhat you do with this completion data is up to you, but the most common use case is to\nfeed it to one of the many progress bar modules.\n\nMost progress bar modules include a rudamentary version of this, but my\nneeds were more complex.\n\nUsage\n=====\n\n```javascript\nvar TrackerGroup = require(\"are-we-there-yet\").TrackerGroup\n\nvar top = new TrackerGroup(\"program\")\n\nvar single = top.newItem(\"one thing\", 100)\nsingle.completeWork(20)\n\nconsole.log(top.completed()) // 0.2\n\nfs.stat(\"file\", function(er, stat) {\n if (er) throw er \n var stream = top.newStream(\"file\", stat.size)\n console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete\n // and 50% * 20% == 10%\n fs.createReadStream(\"file\").pipe(stream).on(\"data\", function (chunk) {\n // do stuff with chunk\n })\n top.on(\"change\", function (name) {\n // called each time a chunk is read from \"file\"\n // top.completed() will start at 0.1 and fill up to 0.6 as the file is read\n })\n})\n```\n\nShared Methods\n==============\n\n* var completed = tracker.completed()\n\nImplemented in: `Tracker`, `TrackerGroup`, `TrackerStream`\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1.\n\n* tracker.finish()\n\nImplemented in: `Tracker`, `TrackerGroup`\n\nMarks the tracker as completed. With a TrackerGroup this marks all of its\ncomponents as completed.\n\nMarks all of the components of this tracker as finished, which in turn means\nthat `tracker.completed()` for this will now be 1.\n\nThis will result in one or more `change` events being emitted.\n\nEvents\n======\n\nAll tracker objects emit `change` events with the following arguments:\n\n```\nfunction (name, completed, tracker)\n```\n\n`name` is the name of the tracker that originally emitted the event,\nor if it didn't have one, the first containing tracker group that had one.\n\n`completed` is the percent complete (as returned by `tracker.completed()` method).\n\n`tracker` is the tracker object that you are listening for events on.\n\nTrackerGroup\n============\n\n* var tracker = new TrackerGroup(**name**)\n\n * **name** *(optional)* - The name of this tracker group, used in change\n notifications if the component updating didn't have a name. Defaults to undefined.\n\nCreates a new empty tracker aggregation group. These are trackers whose\ncompletion status is determined by the completion status of other trackers.\n\n* tracker.addUnit(**otherTracker**, **weight**)\n\n * **otherTracker** - Any of the other are-we-there-yet tracker objects\n * **weight** *(optional)* - The weight to give the tracker, defaults to 1.\n\nAdds the **otherTracker** to this aggregation group. The weight determines\nhow long you expect this tracker to take to complete in proportion to other\nunits. So for instance, if you add one tracker with a weight of 1 and\nanother with a weight of 2, you're saying the second will take twice as long\nto complete as the first. As such, the first will account for 33% of the\ncompletion of this tracker and the second will account for the other 67%.\n\nReturns **otherTracker**.\n\n* var subGroup = tracker.newGroup(**name**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subGroup = tracker.addUnit(new TrackerGroup(name), weight)\n```\n\n* var subItem = tracker.newItem(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subItem = tracker.addUnit(new Tracker(name, todo), weight)\n```\n\n* var subStream = tracker.newStream(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)\n```\n\n* console.log( tracker.debug() )\n\nReturns a tree showing the completion of this tracker group and all of its\nchildren, including recursively entering all of the children.\n\nTracker\n=======\n\n* var tracker = new Tracker(**name**, **todo**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.\n\nOrdinarily these are constructed as a part of a tracker group (via\n`newItem`).\n\n* var completed = tracker.completed()\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1. If\ntotal work to be done is 0 then it will return 0.\n\n* tracker.addWork(**todo**)\n\n * **todo** A number to add to the amount of work to be done.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\n\n* tracker.completeWork(**completed**)\n\n * **completed** A number to add to the work complete\n\nIncrease the amount of work complete, thus increasing the completion percentage.\nWill never increase the work completed past the amount of work todo. That is,\npercentages > 100% are not allowed. Triggers a `change` event.\n\n* tracker.finish()\n\nMarks this tracker as finished, tracker.completed() will now be 1. Triggers\na `change` event.\n\nTrackerStream\n=============\n\n* var tracker = new TrackerStream(**name**, **size**, **options**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **size** *(optional)* The number of bytes being sent through this stream.\n * **options** *(optional)* A hash of stream options\n\nThe tracker stream object is a pass through stream that updates an internal\ntracker object each time a block passes through. It's intended to track\ndownloads, file extraction and other related activities. You use it by piping\nyour data source into it and then using it as your data source.\n\nIf your data has a length attribute then that's used as the amount of work\ncompleted when the chunk is passed through. If it does not (eg, object\nstreams) then each chunk counts as completing 1 unit of work, so your size\nshould be the total number of objects being streamed.\n\n* tracker.addWork(**todo**)\n\n * **todo** Increase the expected overall size by **todo** bytes.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\n# function-bind\n\n<!--\n [![build status][travis-svg]][travis-url]\n [![NPM version][npm-badge-svg]][npm-url]\n [![Coverage Status][5]][6]\n [![gemnasium Dependency Status][7]][8]\n [![Dependency status][deps-svg]][deps-url]\n [![Dev Dependency status][dev-deps-svg]][dev-deps-url]\n-->\n\n<!-- [![browser support][11]][12] -->\n\nImplementation of function.prototype.bind\n\n## Example\n\nI mainly do this for unit tests I run on phantomjs.\nPhantomJS does not have Function.prototype.bind :(\n\n```js\nFunction.prototype.bind = require(\"function-bind\")\n```\n\n## Installation\n\n`npm install function-bind`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [travis-svg]: https://travis-ci.org/Raynos/function-bind.svg\n [travis-url]: https://travis-ci.org/Raynos/function-bind\n [npm-badge-svg]: https://badge.fury.io/js/function-bind.svg\n [npm-url]: https://npmjs.org/package/function-bind\n [5]: https://coveralls.io/repos/Raynos/function-bind/badge.png\n [6]: https://coveralls.io/r/Raynos/function-bind\n [7]: https://gemnasium.com/Raynos/function-bind.png\n [8]: https://gemnasium.com/Raynos/function-bind\n [deps-svg]: https://david-dm.org/Raynos/function-bind.svg\n [deps-url]: https://david-dm.org/Raynos/function-bind\n [dev-deps-svg]: https://david-dm.org/Raynos/function-bind/dev-status.svg\n [dev-deps-url]: https://david-dm.org/Raynos/function-bind#info=devDependencies\n [11]: https://ci.testling.com/Raynos/function-bind.png\n [12]: https://ci.testling.com/Raynos/function-bind\n# Borsh JS\n\n[](https://opensource.org/licenses/Apache-2.0)\n[](https://opensource.org/licenses/MIT)\n[](https://discord.gg/Vyp7ETM)\n[](https://travis-ci.com/near/borsh-js)\n[](https://npmjs.com/borsh)\n[](https://npmjs.com/borsh)\n\n**Borsh JS** is an implementation of the [Borsh] binary serialization format for\nJavaScript and TypeScript projects.\n\nBorsh stands for _Binary Object Representation Serializer for Hashing_. It is meant to be used in security-critical projects as it prioritizes consistency,\nsafety, speed, and comes with a strict specification.\n\n## Examples\n### Serializing an object\n```javascript\nconst value = new Test({ x: 255, y: 20, z: '123', q: [1, 2, 3] });\nconst schema = new Map([[Test, { kind: 'struct', fields: [['x', 'u8'], ['y', 'u64'], ['z', 'string'], ['q', [3]]] }]]);\nconst buffer = borsh.serialize(schema, value);\n```\n\n### Deserializing an object\n```javascript\nconst newValue = borsh.deserialize(schema, Test, buffer);\n```\n\n## Type Mappings\n\n| Borsh | TypeScript |\n|-----------------------|----------------|\n| `u8` integer | `number` |\n| `u16` integer | `number` |\n| `u32` integer | `number` |\n| `u64` integer | `BN` |\n| `u128` integer | `BN` |\n| `u256` integer | `BN` |\n| `u512` integer | `BN` |\n| `f32` float | N/A |\n| `f64` float | N/A |\n| fixed-size byte array | `Uint8Array` |\n| UTF-8 string | `string` |\n| option | `null` or type |\n| map | N/A |\n| set | N/A |\n| structs | `any` |\n\n## Contributing\n\nInstall dependencies:\n```bash\nyarn install\n```\n\nContinuously build with:\n```bash\nyarn dev\n```\n\nRun tests:\n```bash\nyarn test\n```\n\nRun linter\n```bash\nyarn lint\n```\n## Publish\n\nPrepare `dist` version by running:\n```bash\nyarn build\n```\n\nWhen publishing to npm use [np](https://github.com/sindresorhus/np).\n\n# License\nThis repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0).\nSee [LICENSE-MIT](LICENSE-MIT.txt) and [LICENSE-APACHE](LICENSE-APACHE) for details.\n\n[Borsh]: https://borsh.io\n<!--\nBEFORE EDITING THIS README\nOur README.md is auto-generated by combining pages in website/docs and website/readme-sources\n\nIf you are sending a pull request to improve documentation, submit your changes\nin the source markdown files and we will generate the README from there.\n\nYou can build the readme with this command:\n\n cd website && yarn build-readme\n-->\n\n# [](https://typestrong.org/ts-node)\n\n[](https://npmjs.org/package/ts-node)\n[](https://npmjs.org/package/ts-node)\n[](https://github.com/TypeStrong/ts-node/actions?query=workflow%3A%22Continuous+Integration%22)\n[](https://codecov.io/gh/TypeStrong/ts-node)\n\n> TypeScript execution and REPL for node.js, with source map and native ESM support.\n\nThe latest documentation can also be found on our website: <https://typestrong.org/ts-node>\n\n# Table of Contents\n\n* [Overview](#overview)\n * [Features](#features)\n* [Installation](#installation)\n* [Usage](#usage)\n * [Command Line](#command-line)\n * [Shebang](#shebang)\n * [node flags and other tools](#node-flags-and-other-tools)\n * [Programmatic](#programmatic)\n* [Configuration](#configuration)\n * [CLI flags](#cli-flags)\n * [Via tsconfig.json (recommended)](#via-tsconfigjson-recommended)\n * [@tsconfig/bases](#tsconfigbases)\n * [Default config](#default-config)\n * [`node` flags](#node-flags)\n* [Options](#options)\n * [CLI Options](#cli-options)\n * [help](#help)\n * [version](#version)\n * [eval](#eval)\n * [print](#print)\n * [interactive](#interactive)\n * [esm](#esm)\n * [TSConfig Options](#tsconfig-options)\n * [project](#project)\n * [skipProject](#skipproject)\n * [cwdMode](#cwdmode)\n * [compilerOptions](#compileroptions)\n * [showConfig](#showconfig)\n * [Typechecking](#typechecking)\n * [transpileOnly](#transpileonly)\n * [typeCheck](#typecheck)\n * [compilerHost](#compilerhost)\n * [files](#files)\n * [ignoreDiagnostics](#ignorediagnostics)\n * [Transpilation Options](#transpilation-options)\n * [ignore](#ignore)\n * [skipIgnore](#skipignore)\n * [compiler](#compiler)\n * [swc](#swc)\n * [transpiler](#transpiler)\n * [preferTsExts](#prefertsexts)\n * [Diagnostic Options](#diagnostic-options)\n * [logError](#logerror)\n * [pretty](#pretty)\n * [TS_NODE_DEBUG](#ts_node_debug)\n * [Advanced Options](#advanced-options)\n * [require](#require)\n * [cwd](#cwd)\n * [emit](#emit)\n * [scope](#scope)\n * [scopeDir](#scopedir)\n * [moduleTypes](#moduletypes)\n * [TS_NODE_HISTORY](#ts_node_history)\n * [noExperimentalReplAwait](#noexperimentalreplawait)\n * [experimentalResolver](#experimentalresolver)\n * [experimentalSpecifierResolution](#experimentalspecifierresolution)\n * [API Options](#api-options)\n* [SWC](#swc-1)\n* [CommonJS vs native ECMAScript modules](#commonjs-vs-native-ecmascript-modules)\n * [CommonJS](#commonjs)\n * [Native ECMAScript modules](#native-ecmascript-modules)\n* [Troubleshooting](#troubleshooting)\n * [Configuration](#configuration-1)\n * [Common errors](#common-errors)\n * [`TSError`](#tserror)\n * [`SyntaxError`](#syntaxerror)\n * [Unsupported JavaScript syntax](#unsupported-javascript-syntax)\n * [`ERR_REQUIRE_ESM`](#err_require_esm)\n * [`ERR_UNKNOWN_FILE_EXTENSION`](#err_unknown_file_extension)\n * [Missing Types](#missing-types)\n * [npx, yarn dlx, and node_modules](#npx-yarn-dlx-and-node_modules)\n* [Performance](#performance)\n * [Skip typechecking](#skip-typechecking)\n * [With typechecking](#with-typechecking)\n* [Advanced](#advanced)\n * [How it works](#how-it-works)\n * [Ignored files](#ignored-files)\n * [File extensions](#file-extensions)\n * [Skipping `node_modules`](#skipping-node_modules)\n * [Skipping pre-compiled TypeScript](#skipping-pre-compiled-typescript)\n * [Scope by directory](#scope-by-directory)\n * [Ignore by regexp](#ignore-by-regexp)\n * [paths and baseUrl\n ](#paths-and-baseurl)\n * [Why is this not built-in to ts-node?](#why-is-this-not-built-in-to-ts-node)\n * [Third-party compilers](#third-party-compilers)\n * [Transpilers](#transpilers)\n * [Third-party plugins](#third-party-plugins)\n * [Write your own plugin](#write-your-own-plugin)\n * [Module type overrides](#module-type-overrides)\n * [Caveats](#caveats)\n * [API](#api)\n* [Recipes](#recipes)\n * [Watching and restarting](#watching-and-restarting)\n * [AVA](#ava)\n * [CommonJS](#commonjs-1)\n * [Native ECMAScript modules](#native-ecmascript-modules-1)\n * [Gulp](#gulp)\n * [IntelliJ and Webstorm](#intellij-and-webstorm)\n * [Mocha](#mocha)\n * [Mocha 7 and newer](#mocha-7-and-newer)\n * [Mocha <=6](#mocha-6)\n * [Tape](#tape)\n * [Visual Studio Code](#visual-studio-code)\n * [Other](#other)\n* [License](#license)\n\n# Overview\n\nts-node is a TypeScript execution engine and REPL for Node.js.\n\nIt JIT transforms TypeScript into JavaScript, enabling you to directly execute TypeScript on Node.js without precompiling.\nThis is accomplished by hooking node's module loading APIs, enabling it to be used seamlessly alongside other Node.js\ntools and libraries.\n\n## Features\n\n* Automatic sourcemaps in stack traces\n* Automatic `tsconfig.json` parsing\n* Automatic defaults to match your node version\n* Typechecking (optional)\n* REPL\n* Write standalone scripts\n* Native ESM loader\n* Use third-party transpilers\n* Use custom transformers\n* Integrate with test runners, debuggers, and CLI tools\n* Compatible with pre-compilation for production\n\n\n\n# Installation\n\n```shell\n# Locally in your project.\nnpm install -D typescript\nnpm install -D ts-node\n\n# Or globally with TypeScript.\nnpm install -g typescript\nnpm install -g ts-node\n\n# Depending on configuration, you may also need these\nnpm install -D tslib @types/node\n```\n\n**Tip:** Installing modules locally allows you to control and share the versions through `package.json`. ts-node will always resolve the compiler from `cwd` before checking relative to its own installation.\n\n# Usage\n\n## Command Line\n\n```shell\n# Execute a script as `node` + `tsc`.\nts-node script.ts\n\n# Starts a TypeScript REPL.\nts-node\n\n# Execute code with TypeScript.\nts-node -e 'console.log(\"Hello, world!\")'\n\n# Execute, and print, code with TypeScript.\nts-node -p -e '\"Hello, world!\"'\n\n# Pipe scripts to execute with TypeScript.\necho 'console.log(\"Hello, world!\")' | ts-node\n\n# Equivalent to ts-node --transpileOnly\nts-node-transpile-only script.ts\n\n# Equivalent to ts-node --cwdMode\nts-node-cwd script.ts\n\n# Equivalent to ts-node --esm\nts-node-esm script.ts\n```\n\n## Shebang\n\nTo write scripts with maximum portability, [specify options in your `tsconfig.json`](#via-tsconfigjson-recommended) and omit them from the shebang.\n\n```typescript twoslash\n#!/usr/bin/env ts-node\n\n// ts-node options are read from tsconfig.json\n\nconsole.log(\"Hello, world!\")\n```\n\nIncluding options within the shebang requires the [`env -S` flag](https://manpages.debian.org/bullseye/coreutils/env.1.en.html#S), which is available on recent versions of `env`. ([compatibility](https://github.com/TypeStrong/ts-node/pull/1448#issuecomment-913895766))\n\n```typescript twoslash\n#!/usr/bin/env -S ts-node --files\n// This shebang works on Mac and Linux with newer versions of env\n// Technically, Mac allows omitting `-S`, but Linux requires it\n```\n\nTo test your version of `env` for compatibility with `-S`:\n\n```shell\n# Note that these unusual quotes are necessary\n/usr/bin/env --debug '-S echo foo bar'\n```\n\n## node flags and other tools\n\nYou can register ts-node without using our CLI: `node -r ts-node/register` and `node --loader ts-node/esm`\n\nIn many cases, setting [`NODE_OPTIONS`](https://nodejs.org/api/cli.html#cli_node_options_options) will enable `ts-node` within other node tools, child processes, and worker threads. This can be combined with other node flags.\n\n```shell\nNODE_OPTIONS=\"-r ts-node/register --no-warnings\" node ./index.ts\n```\n\nOr, if you require native ESM support:\n\n```shell\nNODE_OPTIONS=\"--loader ts-node/esm\"\n```\n\nThis tells any node processes which receive this environment variable to install `ts-node`'s hooks before executing other code.\n\nIf you are invoking node directly, you can avoid the environment variable and pass those flags to node.\n\n```shell\nnode --loader ts-node/esm --inspect ./index.ts\n```\n\n## Programmatic\n\nYou can require ts-node and register the loader for future requires by using `require('ts-node').register({ /* options */ })`.\n\nCheck out our [API](#api) for more features.\n\n# Configuration\n\nts-node supports a variety of options which can be specified via `tsconfig.json`, as CLI flags, as environment variables, or programmatically.\n\nFor a complete list, see [Options](#options).\n\n## CLI flags\n\nts-node CLI flags must come *before* the entrypoint script. For example:\n\n```shell\n$ ts-node --project tsconfig-dev.json say-hello.ts Ronald\nHello, Ronald!\n```\n\n## Via tsconfig.json (recommended)\n\nts-node automatically finds and loads `tsconfig.json`. Most ts-node options can be specified in a `\"ts-node\"` object using their programmatic, camelCase names. We recommend this because it works even when you cannot pass CLI flags, such as `node --require ts-node/register` and when using shebangs.\n\nUse `--skipProject` to skip loading the `tsconfig.json`. Use `--project` to explicitly specify the path to a `tsconfig.json`.\n\nWhen searching, it is resolved using [the same search behavior as `tsc`](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html). By default, this search is performed relative to the entrypoint script. In `--cwdMode` or if no entrypoint is specified -- for example when using the REPL -- the search is performed relative to `--cwd` / `process.cwd()`.\n\nYou can use this sample configuration as a starting point:\n\n```jsonc title=\"tsconfig.json\"\n{\n // This is an alias to @tsconfig/node16: https://github.com/tsconfig/bases\n \"extends\": \"ts-node/node16/tsconfig.json\",\n\n // Most ts-node options can be specified here using their programmatic names.\n \"ts-node\": {\n // It is faster to skip typechecking.\n // Remove if you want ts-node to do typechecking.\n \"transpileOnly\": true,\n\n \"files\": true,\n\n \"compilerOptions\": {\n // compilerOptions specified here will override those declared below,\n // but *only* in ts-node. Useful if you want ts-node and tsc to use\n // different options with a single tsconfig.json.\n }\n },\n \"compilerOptions\": {\n // typescript options here\n }\n}\n```\n\nOur bundled [JSON schema](https://unpkg.com/browse/ts-node@latest/tsconfig.schema.json) lists all compatible options.\n\n### @tsconfig/bases\n\n[@tsconfig/bases](https://github.com/tsconfig/bases) maintains recommended configurations for several node versions.\nAs a convenience, these are bundled with ts-node.\n\n```jsonc title=\"tsconfig.json\"\n{\n \"extends\": \"ts-node/node16/tsconfig.json\",\n\n // Or install directly with `npm i -D @tsconfig/node16`\n \"extends\": \"@tsconfig/node16/tsconfig.json\",\n}\n```\n\n### Default config\n\nIf no `tsconfig.json` is loaded from disk, ts-node will use the newest recommended defaults from\n[@tsconfig/bases](https://github.com/tsconfig/bases/) compatible with your `node` and `typescript` versions.\nWith the latest `node` and `typescript`, this is [`@tsconfig/node16`](https://github.com/tsconfig/bases/blob/master/bases/node16.json).\n\nOlder versions of `typescript` are incompatible with `@tsconfig/node16`. In those cases we will use an older default configuration.\n\nWhen in doubt, `ts-node --showConfig` will log the configuration being used, and `ts-node -vv` will log `node` and `typescript` versions.\n\n## `node` flags\n\n[`node` flags](https://nodejs.org/api/cli.html) must be passed directly to `node`; they cannot be passed to the ts-node binary nor can they be specified in `tsconfig.json`\n\nWe recommend using the [`NODE_OPTIONS`](https://nodejs.org/api/cli.html#cli_node_options_options) environment variable to pass options to `node`.\n\n```shell\nNODE_OPTIONS='--trace-deprecation --abort-on-uncaught-exception' ts-node ./index.ts\n```\n\nAlternatively, you can invoke `node` directly and install ts-node via `--require`/`-r`\n\n```shell\nnode --trace-deprecation --abort-on-uncaught-exception -r ts-node/register ./index.ts\n```\n\n# Options\n\nAll command-line flags support both `--camelCase` and `--hyphen-case`.\n\nMost options can be declared in your tsconfig.json: [Configuration via tsconfig.json](#via-tsconfigjson-recommended)\n\n`ts-node` supports `--print` (`-p`), `--eval` (`-e`), `--require` (`-r`) and `--interactive` (`-i`) similar to the [node.js CLI](https://nodejs.org/api/cli.html).\n\n`ts-node` supports `--project` and `--showConfig` similar to the [tsc CLI](https://www.typescriptlang.org/docs/handbook/compiler-options.html#compiler-options).\n\n*Environment variables, where available, are in `ALL_CAPS`*\n\n## CLI Options\n\n### help\n\n```shell\nts-node --help\n```\n\nPrints the help text\n\n### version\n\n```shell\nts-node -v\nts-node -vvv\n```\n\nPrints the version. `-vv` includes node and typescript compiler versions. `-vvv` includes absolute paths to ts-node and\ntypescript installations.\n\n### eval\n\n```shell\nts-node -e <typescript code>\n# Example\nts-node -e 'console.log(\"Hello world!\")'\n```\n\nEvaluate code\n\n### print\n\n```shell\nts-node -p -e <typescript code>\n# Example\nts-node -p -e '\"Hello world!\"'\n```\n\nPrint result of `--eval`\n\n### interactive\n\n```shell\nts-node -i\n```\n\nOpens the REPL even if stdin does not appear to be a terminal\n\n### esm\n\n```shell\nts-node --esm\nts-node-esm\n```\n\nBootstrap with the ESM loader, enabling full ESM support\n\n## TSConfig Options\n\n### project\n\n```shell\nts-node -P <path/to/tsconfig>\nts-node --project <path/to/tsconfig>\n```\n\nPath to tsconfig file.\n\n*Note the uppercase `-P`. This is different from `tsc`'s `-p/--project` option.*\n\n*Environment:* `TS_NODE_PROJECT`\n\n### skipProject\n\n```shell\nts-node --skipProject\n```\n\nSkip project config resolution and loading\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_SKIP_PROJECT`\n\n### cwdMode\n\n```shell\nts-node -c\nts-node --cwdMode\nts-node-cwd\n```\n\nResolve config relative to the current directory instead of the directory of the entrypoint script\n\n### compilerOptions\n\n```shell\nts-node -O <json compilerOptions>\nts-node --compilerOptions <json compilerOptions>\n```\n\nJSON object to merge with compiler options\n\n*Environment:* `TS_NODE_COMPILER_OPTIONS`\n\n### showConfig\n\n```shell\nts-node --showConfig\n```\n\nPrint resolved `tsconfig.json`, including `ts-node` options, and exit\n\n## Typechecking\n\n### transpileOnly\n\n```shell\nts-node -T\nts-node --transpileOnly\n```\n\nUse TypeScript's faster `transpileModule`\n\n*Default:* `false`<br/>\n*Environment:* `TS_NODE_TRANSPILE_ONLY`\n\n### typeCheck\n\n```shell\nts-node --typeCheck\n```\n\nOpposite of `--transpileOnly`\n\n*Default:* `true`<br/>\n*Environment:* `TS_NODE_TYPE_CHECK`\n\n### compilerHost\n\n```shell\nts-node -H\nts-node --compilerHost\n```\n\nUse TypeScript's compiler host API\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_COMPILER_HOST`\n\n### files\n\n```shell\nts-node --files\n```\n\nLoad `files`, `include` and `exclude` from `tsconfig.json` on startup. This may\navoid certain typechecking failures. See [Missing types](#missing-types) for details.\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_FILES`\n\n### ignoreDiagnostics\n\n```shell\nts-node -D <code,code>\nts-node --ignoreDiagnostics <code,code>\n```\n\nIgnore TypeScript warnings by diagnostic code\n\n*Environment:* `TS_NODE_IGNORE_DIAGNOSTICS`\n\n## Transpilation Options\n\n### ignore\n\n```shell\nts-node -I <regexp matching ignored files>\nts-node --ignore <regexp matching ignored files>\n```\n\nOverride the path patterns to skip compilation\n\n*Default:* `/node_modules/` <br/>\n*Environment:* `TS_NODE_IGNORE`\n\n### skipIgnore\n\n```shell\nts-node --skipIgnore\n```\n\nSkip ignore checks\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_SKIP_IGNORE`\n\n### compiler\n\n```shell\nts-node -C <name>\nts-node --compiler <name>\n```\n\nSpecify a custom TypeScript compiler\n\n*Default:* `typescript` <br/>\n*Environment:* `TS_NODE_COMPILER`\n\n### swc\n\n```shell\nts-node --swc\n```\n\nTranspile with [swc](#swc). Implies `--transpileOnly`\n\n*Default:* `false`\n\n### transpiler\n\n```shell\nts-node --transpiler <name>\n# Example\nts-node --transpiler ts-node/transpilers/swc\n```\n\nUse a third-party, non-typechecking transpiler\n\n### preferTsExts\n\n```shell\nts-node --preferTsExts\n```\n\nRe-order file extensions so that TypeScript imports are preferred\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_PREFER_TS_EXTS`\n\n## Diagnostic Options\n\n### logError\n\n```shell\nts-node --logError\n```\n\nLogs TypeScript errors to stderr instead of throwing exceptions\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_LOG_ERROR`\n\n### pretty\n\n```shell\nts-node --pretty\n```\n\nUse pretty diagnostic formatter\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_PRETTY`\n\n### TS_NODE_DEBUG\n\n```shell\nTS_NODE_DEBUG=true ts-node\n```\n\nEnable debug logging\n\n## Advanced Options\n\n### require\n\n```shell\nts-node -r <module name or path>\nts-node --require <module name or path>\n```\n\nRequire a node module before execution\n\n### cwd\n\n```shell\nts-node --cwd <path/to/directory>\n```\n\nBehave as if invoked in this working directory\n\n*Default:* `process.cwd()`<br/>\n*Environment:* `TS_NODE_CWD`\n\n### emit\n\n```shell\nts-node --emit\n```\n\nEmit output files into `.ts-node` directory. Requires `--compilerHost`\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_EMIT`\n\n### scope\n\n```shell\nts-node --scope\n```\n\nScope compiler to files within `scopeDir`. Anything outside this directory is ignored.\n\n*Default:* `false` <br/>\n*Environment:* `TS_NODE_SCOPE`\n\n### scopeDir\n\n```shell\nts-node --scopeDir <path/to/directory>\n```\n\nDirectory within which compiler is limited when `scope` is enabled.\n\n*Default:* First of: `tsconfig.json` \"rootDir\" if specified, directory containing `tsconfig.json`, or cwd if no `tsconfig.json` is loaded.<br/>\n*Environment:* `TS_NODE_SCOPE_DIR`\n\n### moduleTypes\n\nOverride the module type of certain files, ignoring the `package.json` `\"type\"` field. See [Module type overrides](#module-type-overrides) for details.\n\n*Default:* obeys `package.json` `\"type\"` and `tsconfig.json` `\"module\"` <br/>\n*Can only be specified via `tsconfig.json` or API.*\n\n### TS_NODE_HISTORY\n\n```shell\nTS_NODE_HISTORY=<path/to/history/file> ts-node\n```\n\nPath to history file for REPL\n\n*Default:* `~/.ts_node_repl_history`\n\n### noExperimentalReplAwait\n\n```shell\nts-node --noExperimentalReplAwait\n```\n\nDisable top-level await in REPL. Equivalent to node's [`--no-experimental-repl-await`](https://nodejs.org/api/cli.html#cli_no_experimental_repl_await)\n\n*Default:* Enabled if TypeScript version is 3.8 or higher and target is ES2018 or higher.<br/>\n*Environment:* `TS_NODE_EXPERIMENTAL_REPL_AWAIT` set `false` to disable\n\n### experimentalResolver\n\nEnable experimental hooks that re-map imports and require calls to support:\n\n* remapping extensions, e.g. so that `import \"./foo.js\"` will execute `foo.ts`. Currently the following extensions will be mapped:\n * `.js` to `.ts`, `.tsx`, or `.jsx`\n * `.cjs` to `.cts`\n * `.mjs` to `.mts`\n * `.jsx` to `.tsx`\n* including file extensions in CommonJS, for consistency with ESM where this is often mandatory\n\nIn the future, this hook will also support:\n\n* `baseUrl`, `paths`\n* `rootDirs`\n* `outDir` to `rootDir` mappings for composite projects and monorepos\n\nFor details, see [#1514](https://github.com/TypeStrong/ts-node/issues/1514).\n\n*Default:* `false`, but will likely be enabled by default in a future version<br/>\n*Can only be specified via `tsconfig.json` or API.*\n\n### experimentalSpecifierResolution\n\n```shell\nts-node --experimentalSpecifierResolution node\n```\n\nLike node's [`--experimental-specifier-resolution`](https://nodejs.org/dist/latest-v18.x/docs/api/esm.html#customizing-esm-specifier-resolution-algorithm), but can also be set in your `tsconfig.json` for convenience.\nRequires [`esm`](#esm) to be enabled.\n\n*Default:* `explicit`<br/>\n\n## API Options\n\nThe API includes [additional options](https://typestrong.org/ts-node/api/interfaces/RegisterOptions.html) not shown here.\n\n# SWC\n\nSWC support is built-in via the `--swc` flag or `\"swc\": true` tsconfig option.\n\n[SWC](https://swc.rs) is a TypeScript-compatible transpiler implemented in Rust. This makes it an order of magnitude faster than vanilla `transpileOnly`.\n\nTo use it, first install `@swc/core` or `@swc/wasm`. If using `importHelpers`, also install `@swc/helpers`. If `target` is less than \"es2015\" and using `async`/`await` or generator functions, also install `regenerator-runtime`.\n\n```shell\nnpm i -D @swc/core @swc/helpers regenerator-runtime\n```\n\nThen add the following to your `tsconfig.json`.\n\n```jsonc title=\"tsconfig.json\"\n{\n \"ts-node\": {\n \"swc\": true\n }\n}\n```\n\n> SWC uses `@swc/helpers` instead of `tslib`. If you have enabled `importHelpers`, you must also install `@swc/helpers`.\n\n# CommonJS vs native ECMAScript modules\n\nTypeScript is almost always written using modern `import` syntax, but it is also transformed before being executed by the underlying runtime. You can choose to either transform to CommonJS or to preserve the native `import` syntax, using node's native ESM support. Configuration is different for each.\n\nHere is a brief comparison of the two.\n\n| CommonJS | Native ECMAScript modules |\n|---|---|\n| Write native `import` syntax | Write native `import` syntax |\n| Transforms `import` into `require()` | Does not transform `import` |\n| Node executes scripts using the classic [CommonJS loader](https://nodejs.org/dist/latest-v16.x/docs/api/modules.html) | Node executes scripts using the new [ESM loader](https://nodejs.org/dist/latest-v16.x/docs/api/esm.html) |\n| Use any of:<br/>`ts-node`<br/>`node -r ts-node/register`<br/>`NODE_OPTIONS=\"ts-node/register\" node`<br/>`require('ts-node').register({/* options */})` | Use any of:<br/>`ts-node --esm`<br/>`ts-node-esm`<br/>Set `\"esm\": true` in `tsconfig.json`<br />`node --loader ts-node/esm`<br/>`NODE_OPTIONS=\"--loader ts-node/esm\" node` |\n\n## CommonJS\n\nTransforming to CommonJS is typically simpler and more widely supported because it is older. You must remove [`\"type\": \"module\"`](https://nodejs.org/api/packages.html#packages_type) from `package.json` and set [`\"module\": \"CommonJS\"`](https://www.typescriptlang.org/tsconfig/#module) in `tsconfig.json`.\n\n```jsonc title=\"package.json\"\n{\n // This can be omitted; commonjs is the default\n \"type\": \"commonjs\"\n}\n```\n\n```jsonc title=\"tsconfig.json\"\n{\n \"compilerOptions\": {\n \"module\": \"CommonJS\"\n }\n}\n```\n\nIf you must keep `\"module\": \"ESNext\"` for `tsc`, webpack, or another build tool, you can set an override for ts-node.\n\n```jsonc title=\"tsconfig.json\"\n{\n \"compilerOptions\": {\n \"module\": \"ESNext\"\n },\n \"ts-node\": {\n \"compilerOptions\": {\n \"module\": \"CommonJS\"\n }\n }\n}\n```\n\n## Native ECMAScript modules\n\n[Node's ESM loader hooks](https://nodejs.org/api/esm.html#esm_experimental_loaders) are [**experimental**](https://nodejs.org/api/documentation.html#documentation_stability_index) and subject to change. ts-node's ESM support is as stable as possible, but it relies on APIs which node can *and will* break in new versions of node. Thus it is not recommended for production.\n\nFor complete usage, limitations, and to provide feedback, see [#1007](https://github.com/TypeStrong/ts-node/issues/1007).\n\nYou must set [`\"type\": \"module\"`](https://nodejs.org/api/packages.html#packages_type) in `package.json` and [`\"module\": \"ESNext\"`](https://www.typescriptlang.org/tsconfig/#module) in `tsconfig.json`.\n\n```jsonc title=\"package.json\"\n{\n \"type\": \"module\"\n}\n```\n\n```jsonc title=\"tsconfig.json\"\n{\n \"compilerOptions\": {\n \"module\": \"ESNext\" // or ES2015, ES2020\n },\n \"ts-node\": {\n // Tell ts-node CLI to install the --loader automatically, explained below\n \"esm\": true\n }\n}\n```\n\nYou must also ensure node is passed `--loader`. The ts-node CLI will do this automatically with our `esm` option.\n\n> Note: `--esm` must spawn a child process to pass it `--loader`. This may change if node adds the ability to install loader hooks\n> into the current process.\n\n```shell\n# pass the flag\nts-node --esm\n# Use the convenience binary\nts-node-esm\n# or add `\"esm\": true` to your tsconfig.json to make it automatic\nts-node\n```\n\nIf you are not using our CLI, pass the loader flag to node.\n\n```shell\nnode --loader ts-node/esm ./index.ts\n# Or via environment variable\nNODE_OPTIONS=\"--loader ts-node/esm\" node ./index.ts\n```\n\n# Troubleshooting\n\n## Configuration\n\nts-node uses sensible default configurations to reduce boilerplate while still respecting `tsconfig.json` if you\nhave one. If you are unsure which configuration is used, you can log it with `ts-node --showConfig`. This is similar to\n`tsc --showConfig` but includes `\"ts-node\"` options as well.\n\nts-node also respects your locally-installed `typescript` version, but global installations fallback to the globally-installed\n`typescript`. If you are unsure which versions are used, `ts-node -vv` will log them.\n\n```shell\n$ ts-node -vv\nts-node v10.0.0\nnode v16.1.0\ncompiler v4.2.2\n\n$ ts-node --showConfig\n{\n \"compilerOptions\": {\n \"target\": \"es6\",\n \"lib\": [\n \"es6\",\n \"dom\"\n ],\n \"rootDir\": \"./src\",\n \"outDir\": \"./.ts-node\",\n \"module\": \"commonjs\",\n \"moduleResolution\": \"node\",\n \"strict\": true,\n \"declaration\": false,\n \"sourceMap\": true,\n \"inlineSources\": true,\n \"types\": [\n \"node\"\n ],\n \"stripInternal\": true,\n \"incremental\": true,\n \"skipLibCheck\": true,\n \"importsNotUsedAsValues\": \"error\",\n \"inlineSourceMap\": false,\n \"noEmit\": false\n },\n \"ts-node\": {\n \"cwd\": \"/d/project\",\n \"projectSearchDir\": \"/d/project\",\n \"require\": [],\n \"project\": \"/d/project/tsconfig.json\"\n }\n}\n```\n\n## Common errors\n\nIt is important to differentiate between errors from ts-node, errors from the TypeScript compiler, and errors from `node`. It is also important to understand when errors are caused by a type error in your code, a bug in your code, or a flaw in your configuration.\n\n### `TSError`\n\nType errors from the compiler are thrown as a `TSError`. These are the same as errors you get from `tsc`.\n\n### `SyntaxError`\n\nAny error that is not a `TSError` is from node.js (e.g. `SyntaxError`), and cannot be fixed by TypeScript or ts-node. These are bugs in your code or configuration.\n\n#### Unsupported JavaScript syntax\n\nYour version of `node` may not support all JavaScript syntax supported by TypeScript. The compiler must transform this syntax via \"downleveling,\" which is controlled by\nthe [tsconfig `\"target\"` option](https://www.typescriptlang.org/tsconfig#target). Otherwise your code will compile fine, but node will throw a `SyntaxError`.\n\nFor example, `node` 12 does not understand the `?.` optional chaining operator. If you use `\"target\": \"esnext\"`, then the following TypeScript syntax:\n\n```typescript twoslash\nconst bar: string | undefined = foo?.bar;\n```\n\nwill compile into this JavaScript:\n\n```javascript\nconst a = foo?.bar;\n```\n\nWhen you try to run this code, node 12 will throw a `SyntaxError`. To fix this, you must switch to `\"target\": \"es2019\"` or lower so TypeScript transforms `?.` into something `node` can understand.\n\n### `ERR_REQUIRE_ESM`\n\nThis error is thrown by node when a module is `require()`d, but node believes it should execute as native ESM. This can happen for a few reasons:\n\n* You have installed an ESM dependency but your own code compiles to CommonJS.\n * Solution: configure your project to compile and execute as native ESM. [Docs](#native-ecmascript-modules)\n * Solution: downgrade the dependency to an older, CommonJS version.\n* You have moved your project to ESM but still have a config file, such as `webpack.config.ts`, which must be executed as CommonJS <!-- SYNC_WITH_MTO_DOCS -->\n * Solution: if supported by the relevant tool, rename your config file to `.cts`\n * Solution: Configure a module type override. [Docs](#module-type-overrides)\n* You have a mix of CommonJS and native ESM in your project\n * Solution: double-check all package.json \"type\" and tsconfig.json \"module\" configuration [Docs](#commonjs-vs-native-ecmascript-modules)\n * Solution: consider simplifying by making your project entirely CommonJS or entirely native ESM\n\n### `ERR_UNKNOWN_FILE_EXTENSION`\n\nThis error is thrown by node when a module has an unrecognized file extension, or no extension at all, and is being executed as native ESM. This can happen for a few reasons:\n\n* You are using a tool which has an extensionless binary, such as `mocha`.\n * CommonJS supports extensionless files but native ESM does not.\n * Solution: upgrade to ts-node >=[v10.6.0](https://github.com/TypeStrong/ts-node/releases/tag/v10.6.0), which implements a workaround.\n* Our ESM loader is not installed.\n * Solution: Use `ts-node-esm`, `ts-node --esm`, or add `\"ts-node\": {\"esm\": true}` to your tsconfig.json. [Docs](#native-ecmascript-modules)\n* You have moved your project to ESM but still have a config file, such as `webpack.config.ts`, which must be executed as CommonJS <!-- SYNC_WITH_MTO_DOCS -->\n * Solution: if supported by the relevant tool, rename your config file to `.cts`\n * Solution: Configure a module type override. [Docs](#module-type-overrides)\n\n## Missing Types\n\nts-node does *not* eagerly load `files`, `include` or `exclude` by default. This is because a large majority of projects do not use all of the files in a project directory (e.g. `Gulpfile.ts`, runtime vs tests) and parsing every file for types slows startup time. Instead, ts-node starts with the script file (e.g. `ts-node index.ts`) and TypeScript resolves dependencies based on imports and references.\n\nOccasionally, this optimization leads to missing types. Fortunately, there are other ways to include them in typechecking.\n\nFor global definitions, you can use the `typeRoots` compiler option. This requires that your type definitions be structured as type packages (not loose TypeScript definition files). More details on how this works can be found in the [TypeScript Handbook](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html#types-typeroots-and-types).\n\nExample `tsconfig.json`:\n\n```jsonc\n{\n \"compilerOptions\": {\n \"typeRoots\" : [\"./node_modules/@types\", \"./typings\"]\n }\n}\n```\n\nExample project structure:\n\n```text\n<project_root>/\n-- tsconfig.json\n-- typings/\n -- <module_name>/\n -- index.d.ts\n```\n\nExample module declaration file:\n\n```typescript twoslash\ndeclare module '<module_name>' {\n // module definitions go here\n}\n```\n\nFor module definitions, you can use [`paths`](https://www.typescriptlang.org/docs/handbook/module-resolution.html#path-mapping):\n\n```jsonc title=\"tsconfig.json\"\n{\n \"compilerOptions\": {\n \"baseUrl\": \".\",\n \"paths\": {\n \"custom-module-type\": [\"types/custom-module-type\"]\n }\n }\n}\n```\n\nAnother option is [triple-slash directives](https://www.typescriptlang.org/docs/handbook/triple-slash-directives.html). This may be helpful if you prefer not to change your `compilerOptions` or structure your type definitions for `typeRoots`. Below is an example of a triple-slash directive as a relative path within your project:\n\n```typescript twoslash\n/// <reference path=\"./types/lib_greeter\" />\nimport {Greeter} from \"lib_greeter\"\nconst g = new Greeter();\ng.sayHello();\n```\n\nIf none of the above work, and you *must* use `files`, `include`, or `exclude`, enable our [`files`](#files) option.\n\n## npx, yarn dlx, and node_modules\n\nWhen executing TypeScript with `npx` or `yarn dlx`, the code resides within a temporary `node_modules` directory.\n\nThe contents of `node_modules` are ignored by default. If execution fails, enable [`skipIgnore`](#skipignore).\n\n<!--See also: [npx and yarn dlx](./recipes/npx-and-yarn-dlx.md)-->\n\n# Performance\n\nThese tricks will make ts-node faster.\n\n## Skip typechecking\n\nIt is often better to typecheck as part of your tests or linting. You can run `tsc --noEmit` to do this. In these cases, ts-node can skip typechecking, making it much faster.\n\nTo skip typechecking in ts-node, do one of the following:\n\n* Enable [swc](#swc)\n * This is by far the fastest option\n* Enable [`transpileOnly`](#transpileonly) to skip typechecking without swc\n\n## With typechecking\n\nIf you absolutely must typecheck in ts-node:\n\n* Avoid dynamic `require()` which may trigger repeated typechecking; prefer `import`\n* Try with and without `--files`; one may be faster depending on your project\n* Check `tsc --showConfig`; make sure all executed files are included\n* Enable [`skipLibCheck`](https://www.typescriptlang.org/tsconfig#skipLibCheck)\n* Set a [`types`](https://www.typescriptlang.org/tsconfig#types) array to avoid loading unnecessary `@types`\n\n# Advanced\n\n## How it works\n\nts-node works by registering hooks for `.ts`, `.tsx`, `.js`, and/or `.jsx` extensions.\n\nVanilla `node` loads `.js` by reading code from disk and executing it. Our hook runs in the middle, transforming code from TypeScript to JavaScript and passing the result to `node` for execution. This transformation will respect your `tsconfig.json` as if you had compiled via `tsc`.\n\nWe also register a few other hooks to apply sourcemaps to stack traces and remap from `.js` imports to `.ts`.\n\n## Ignored files\n\nts-node transforms certain files and ignores others. We refer to this mechanism as \"scoping.\" There are various\noptions to configure scoping, so that ts-node transforms only the files in your project.\n\n> **Warning:**\n>\n> An ignored file can still be executed by node.js. Ignoring a file means we do not transform it from TypeScript into JavaScript, but it does not prevent execution.\n>\n> If a file requires transformation but is ignored, node may either fail to resolve it or attempt to execute it as vanilla JavaScript. This may cause syntax errors or other failures, because node does not understand TypeScript type syntax nor bleeding-edge ECMAScript features.\n\n### File extensions\n\n`.js` and `.jsx` are only transformed when [`allowJs`](https://www.typescriptlang.org/docs/handbook/compiler-options.html#compiler-options) is enabled.\n\n`.tsx` and `.jsx` are only transformed when [`jsx`](https://www.typescriptlang.org/docs/handbook/jsx.html) is enabled.\n\n> **Warning:**\n>\n> When ts-node is used with `allowJs`, *all* non-ignored JavaScript files are transformed by ts-node.\n\n### Skipping `node_modules`\n\nBy default, ts-node avoids compiling files in `/node_modules/` for three reasons:\n\n1. Modules should always be published in a format node.js can consume\n2. Transpiling the entire dependency tree will make your project slower\n3. Differing behaviours between TypeScript and node.js (e.g. ES2015 modules) can result in a project that works until you decide to support a feature natively from node.js\n\nIf you need to import uncompiled TypeScript in `node_modules`, use [`--skipIgnore`](#skipignore) or [`TS_NODE_SKIP_IGNORE`](#skipignore) to bypass this restriction.\n\n### Skipping pre-compiled TypeScript\n\nIf a compiled JavaScript file with the same name as a TypeScript file already exists, the TypeScript file will be ignored. ts-node will import the pre-compiled JavaScript.\n\nTo force ts-node to import the TypeScript source, not the precompiled JavaScript, use [`--preferTsExts`](#prefertsexts).\n\n### Scope by directory\n\nOur [`scope`](#scope) and [`scopeDir`](#scopedir) options will limit transformation to files\nwithin a directory.\n\n### Ignore by regexp\n\nOur [`ignore`](#ignore) option will ignore files matching one or more regular expressions.\n\n## paths and baseUrl
\n\nYou can use ts-node together with [tsconfig-paths](https://www.npmjs.com/package/tsconfig-paths) to load modules according to the `paths` section in `tsconfig.json`.\n\n```jsonc title=\"tsconfig.json\"\n{\n \"ts-node\": {\n // Do not forget to `npm i -D tsconfig-paths`\n \"require\": [\"tsconfig-paths/register\"]\n }\n}\n```\n\n### Why is this not built-in to ts-node?\n\nThe official TypeScript Handbook explains the intended purpose for `\"paths\"` in [\"Additional module resolution flags\"](https://www.typescriptlang.org/docs/handbook/module-resolution.html#additional-module-resolution-flags).\n\n> The TypeScript compiler has a set of additional flags to *inform* the compiler of transformations that are expected to happen to the sources to generate the final output.\n>\n> It is important to note that the compiler will not perform any of these transformations; it just uses these pieces of information to guide the process of resolving a module import to its definition file.\n\nThis means `\"paths\"` are intended to describe mappings that the build tool or runtime *already* performs, not to tell the build tool or\nruntime how to resolve modules. In other words, they intend us to write our imports in a way `node` already understands. For this reason, ts-node does not modify `node`'s module resolution behavior to implement `\"paths\"` mappings.\n\n## Third-party compilers\n\nSome projects require a patched typescript compiler which adds additional features. For example, [`ttypescript`](https://github.com/cevek/ttypescript/tree/master/packages/ttypescript) and [`ts-patch`](https://github.com/nonara/ts-patch#readme)\nadd the ability to configure custom transformers. These are drop-in replacements for the vanilla `typescript` module and\nimplement the same API.\n\nFor example, to use `ttypescript` and `ts-transformer-keys`, add this to your `tsconfig.json`:\n\n```jsonc title=\"tsconfig.json\"\n{\n \"ts-node\": {\n // This can be omitted when using ts-patch\n \"compiler\": \"ttypescript\"\n },\n \"compilerOptions\": {\n // plugin configuration is the same for both ts-patch and ttypescript\n \"plugins\": [\n { \"transform\": \"ts-transformer-keys/transformer\" }\n ]\n }\n}\n```\n\n## Transpilers\n\nts-node supports third-party transpilers as plugins. Transpilers such as swc can transform TypeScript into JavaScript\nmuch faster than the TypeScript compiler. You will still benefit from ts-node's automatic `tsconfig.json` discovery,\nsourcemap support, and global ts-node CLI. Plugins automatically derive an appropriate configuration from your existing\n`tsconfig.json` which simplifies project boilerplate.\n\n> **What is the difference between a compiler and a transpiler?**\n>\n> For our purposes, a compiler implements TypeScript's API and can perform typechecking.\n> A third-party transpiler does not. Both transform TypeScript into JavaScript.\n\n### Third-party plugins\n\nThe `transpiler` option allows using third-party transpiler plugins with ts-node. `transpiler` must be given the\nname of a module which can be `require()`d. The built-in `swc` plugin is exposed as `ts-node/transpilers/swc`.\n\nFor example, to use a hypothetical \"@cspotcode/fast-ts-compiler\", first install it into your project: `npm install @cspotcode/fast-ts-compiler`\n\nThen add the following to your tsconfig:\n\n```jsonc title=\"tsconfig.json\"\n{\n \"ts-node\": {\n \"transpileOnly\": true,\n \"transpiler\": \"@cspotcode/fast-ts-compiler\"\n }\n}\n```\n\n### Write your own plugin\n\nTo write your own transpiler plugin, check our [API docs](https://typestrong.org/ts-node/api/interfaces/TranspilerModule.html).\n\nPlugins are `require()`d by ts-node, so they can be a local script or a node module published to npm. The module must\nexport a `create` function described by our\n[`TranspilerModule`](https://typestrong.org/ts-node/api/interfaces/TranspilerModule.html) interface. `create` is\ninvoked by ts-node at startup to create one or more transpiler instances. The instances are used to transform\nTypeScript into JavaScript.\n\nFor a working example, check out out our bundled swc plugin: https://github.com/TypeStrong/ts-node/blob/main/src/transpilers/swc.ts\n\n## Module type overrides\n\n> Wherever possible, it is recommended to use TypeScript's [`NodeNext` or `Node16` mode](https://www.typescriptlang.org/docs/handbook/esm-node.html) instead of the options described\n> in this section. Setting `\"module\": \"NodeNext\"` and using the `.cts` file extension should work well for most projects.\n\nWhen deciding how a file should be compiled and executed -- as either CommonJS or native ECMAScript module -- ts-node matches\n`node` and `tsc` behavior. This means TypeScript files are transformed according to your `tsconfig.json` `\"module\"`\noption and executed according to node's rules for the `package.json` `\"type\"` field. Set `\"module\": \"NodeNext\"` and everything should work.\n\nIn rare cases, you may need to override this behavior for some files. For example, some tools read a `name-of-tool.config.ts`\nand require that file to execute as CommonJS. If you have `package.json` configured with `\"type\": \"module\"` and `tsconfig.json` with\n`\"module\": \"esnext\"`, the config is native ECMAScript by default and will raise an error. You will need to force the config and\nany supporting scripts to execute as CommonJS.\n\nIn these situations, our `moduleTypes` option can override certain files to be\nCommonJS or ESM. Similar overriding is possible by using `.mts`, `.cts`, `.cjs` and `.mjs` file extensions.\n`moduleTypes` achieves the same effect for `.ts` and `.js` files, and *also* overrides your `tsconfig.json` `\"module\"`\nconfig appropriately.\n\nThe following example tells ts-node to execute a webpack config as CommonJS:\n\n```jsonc title=\"tsconfig.json\"\n{\n \"ts-node\": {\n \"transpileOnly\": true,\n \"moduleTypes\": {\n \"webpack.config.ts\": \"cjs\",\n // Globs are also supported with the same behavior as tsconfig \"include\"\n \"webpack-config-scripts/**/*\": \"cjs\"\n }\n },\n \"compilerOptions\": {\n \"module\": \"es2020\",\n \"target\": \"es2020\"\n }\n}\n```\n\nEach key is a glob pattern with the same syntax as tsconfig's `\"include\"` array.\nWhen multiple patterns match the same file, the last pattern takes precedence.\n\n* `cjs` overrides matches files to compile and execute as CommonJS.\n* `esm` overrides matches files to compile and execute as native ECMAScript modules.\n* `package` resets either of the above to default behavior, which obeys `package.json` `\"type\"` and `tsconfig.json` `\"module\"` options.\n\n### Caveats\n\nFiles with an overridden module type are transformed with the same limitations as [`isolatedModules`](https://www.typescriptlang.org/tsconfig#isolatedModules). This will only affect rare cases such as using `const enum`s with [`preserveConstEnums`](https://www.typescriptlang.org/tsconfig#preserveConstEnums) disabled.\n\nThis feature is meant to facilitate scenarios where normal `compilerOptions` and `package.json` configuration is not possible. For example, a `webpack.config.ts` cannot be given its own `package.json` to override `\"type\"`. Wherever possible you should favor using traditional `package.json` and `tsconfig.json` configurations.\n\n## API\n\nts-node's complete API is documented here: [API Docs](https://typestrong.org/ts-node/api/)\n\nHere are a few highlights of what you can accomplish:\n\n* [`create()`](https://typestrong.org/ts-node/api/index.html#create) creates ts-node's compiler service without\n registering any hooks.\n* [`createRepl()`](https://typestrong.org/ts-node/api/index.html#createRepl) creates an instance of our REPL service, so\n you can create your own TypeScript-powered REPLs.\n* [`createEsmHooks()`](https://typestrong.org/ts-node/api/index.html#createEsmHooks) creates our ESM loader hooks,\n suitable for composing with other loaders or augmenting with additional features.\n\n# Recipes\n\n## Watching and restarting\n\nts-node focuses on adding first-class TypeScript support to node. Watching files and code reloads are out of scope for the project.\n\nIf you want to restart the `ts-node` process on file change, existing node.js tools such as [nodemon](https://github.com/remy/nodemon), [onchange](https://github.com/Qard/onchange) and [node-dev](https://github.com/fgnass/node-dev) work.\n\nThere's also [`ts-node-dev`](https://github.com/whitecolor/ts-node-dev), a modified version of [`node-dev`](https://github.com/fgnass/node-dev) using `ts-node` for compilation that will restart the process on file change. Note that `ts-node-dev` is incompatible with our native ESM loader.\n\n## AVA\n\nAssuming you are configuring AVA via your `package.json`, add one of the following configurations.\n\n### CommonJS\n\nUse this configuration if your `package.json` does not have `\"type\": \"module\"`.\n\n```jsonc title=\"package.json\"\n{\n \"ava\": {\n \"extensions\": [\n \"ts\"\n ],\n \"require\": [\n \"ts-node/register\"\n ]\n }\n}\n```\n\n### Native ECMAScript modules\n\nThis configuration is necessary if your `package.json` has `\"type\": \"module\"`.\n\n```jsonc title=\"package.json\"\n{\n \"ava\": {\n \"extensions\": {\n \"ts\": \"module\"\n },\n \"nonSemVerExperiments\": {\n \"configurableModuleFormat\": true\n },\n \"nodeArguments\": [\n \"--loader=ts-node/esm\"\n ]\n }\n}\n```\n\n## Gulp\n\nts-node support is built-in to gulp.\n\n```sh\n# Create a `gulpfile.ts` and run `gulp`.\ngulp\n```\n\nSee also: https://gulpjs.com/docs/en/getting-started/javascript-and-gulpfiles#transpilation\n\n## IntelliJ and Webstorm\n\nCreate a new Node.js configuration and add `-r ts-node/register` to \"Node parameters.\"\n\n**Note:** If you are using the `--project <tsconfig.json>` command line argument as per the [Configuration Options](#configuration), and want to apply this same behavior when launching in IntelliJ, specify under \"Environment Variables\": `TS_NODE_PROJECT=<tsconfig.json>`.\n\n## Mocha\n\n### Mocha 7 and newer\n\n```shell\nmocha --require ts-node/register --extensions ts,tsx --watch --watch-files src 'tests/**/*.{ts,tsx}' [...args]\n```\n\nOr specify options via your mocha config file.\n\n```jsonc title=\".mocharc.json\"\n{\n // Specify \"require\" for CommonJS\n \"require\": \"ts-node/register\",\n // Specify \"loader\" for native ESM\n \"loader\": \"ts-node/esm\",\n \"extensions\": [\"ts\", \"tsx\"],\n \"spec\": [\n \"tests/**/*.spec.*\"\n ],\n \"watch-files\": [\n \"src\"\n ]\n}\n```\n\nSee also: https://mochajs.org/#configuring-mocha-nodejs\n\n### Mocha <=6\n\n```shell\nmocha --require ts-node/register --watch-extensions ts,tsx \"test/**/*.{ts,tsx}\" [...args]\n```\n\n**Note:** `--watch-extensions` is only used in `--watch` mode.\n\n## Tape\n\n```shell\nts-node node_modules/tape/bin/tape [...args]\n```\n\n## Visual Studio Code\n\nCreate a new Node.js debug configuration, add `-r ts-node/register` to node args and move the `program` to the `args` list (so VS Code doesn't look for `outFiles`).\n\n```jsonc title=\".vscode/launch.json\"\n{\n \"configurations\": [{\n \"type\": \"node\",\n \"request\": \"launch\",\n \"name\": \"Launch Program\",\n \"runtimeArgs\": [\n \"-r\",\n \"ts-node/register\"\n ],\n \"args\": [\n \"${workspaceFolder}/src/index.ts\"\n ]\n }],\n}\n```\n\n**Note:** If you are using the `--project <tsconfig.json>` command line argument as per the [Configuration Options](#configuration), and want to apply this same behavior when launching in VS Code, add an \"env\" key into the launch configuration: `\"env\": { \"TS_NODE_PROJECT\": \"<tsconfig.json>\" }`.\n\n## Other\n\nIn many cases, setting [`NODE_OPTIONS`](https://nodejs.org/api/cli.html#cli_node_options_options) will enable `ts-node` within other node tools, child processes, and worker threads.\n\n```shell\nNODE_OPTIONS=\"-r ts-node/register\"\n```\n\nOr, if you require native ESM support:\n\n```shell\nNODE_OPTIONS=\"--loader ts-node/esm\"\n```\n\nThis tells any node processes which receive this environment variable to install `ts-node`'s hooks before executing other code.\n\n# License\n\nts-node is licensed under the MIT license. [MIT](https://github.com/TypeStrong/ts-node/blob/main/LICENSE)\n\nts-node includes source code from Node.js which is licensed under the MIT license. [Node.js license information](https://raw.githubusercontent.com/nodejs/node/master/LICENSE)\n\nts-node includes source code from the TypeScript compiler which is licensed under the Apache License 2.0. [TypeScript license information](https://github.com/microsoft/TypeScript/blob/master/LICENSE.txt)\nNOTE: The default branch has been renamed!\nmaster is now named main\n\nIf you have a local clone, you can update it by running:\n\n```shell\ngit branch -m master main\ngit fetch origin\ngit branch -u origin/main main\n```\n\n# **node-addon-api module**\nThis module contains **header-only C++ wrapper classes** which simplify\nthe use of the C based [Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)\nprovided by Node.js when using C++. It provides a C++ object model\nand exception handling semantics with low overhead.\n\nThere are three options for implementing addons: Node-API, nan, or direct\nuse of internal V8, libuv and Node.js libraries. Unless there is a need for\ndirect access to functionality which is not exposed by Node-API as outlined\nin [C/C++ addons](https://nodejs.org/dist/latest/docs/api/addons.html)\nin Node.js core, use Node-API. Refer to\n[C/C++ addons with Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)\nfor more information on Node-API.\n\nNode-API is an ABI stable C interface provided by Node.js for building native\naddons. It is independent from the underlying JavaScript runtime (e.g. V8 or ChakraCore)\nand is maintained as part of Node.js itself. It is intended to insulate\nnative addons from changes in the underlying JavaScript engine and allow\nmodules compiled for one version to run on later versions of Node.js without\nrecompilation.\n\nThe `node-addon-api` module, which is not part of Node.js, preserves the benefits\nof the Node-API as it consists only of inline code that depends only on the stable API\nprovided by Node-API. As such, modules built against one version of Node.js\nusing node-addon-api should run without having to be rebuilt with newer versions\nof Node.js.\n\nIt is important to remember that *other* Node.js interfaces such as\n`libuv` (included in a project via `#include <uv.h>`) are not ABI-stable across\nNode.js major versions. Thus, an addon must use Node-API and/or `node-addon-api`\nexclusively and build against a version of Node.js that includes an\nimplementation of Node-API (meaning an active LTS version of Node.js) in\norder to benefit from ABI stability across Node.js major versions. Node.js\nprovides an [ABI stability guide][] containing a detailed explanation of ABI\nstability in general, and the Node-API ABI stability guarantee in particular.\n\nAs new APIs are added to Node-API, node-addon-api must be updated to provide\nwrappers for those new APIs. For this reason node-addon-api provides\nmethods that allow callers to obtain the underlying Node-API handles so\ndirect calls to Node-API and the use of the objects/methods provided by\nnode-addon-api can be used together. For example, in order to be able\nto use an API for which the node-addon-api does not yet provide a wrapper.\n\nAPIs exposed by node-addon-api are generally used to create and\nmanipulate JavaScript values. Concepts and operations generally map\nto ideas specified in the **ECMA262 Language Specification**.\n\nThe [Node-API Resource](https://nodejs.github.io/node-addon-examples/) offers an\nexcellent orientation and tips for developers just getting started with Node-API\nand node-addon-api.\n\n- **[Setup](#setup)**\n- **[API Documentation](#api)**\n- **[Examples](#examples)**\n- **[Tests](#tests)**\n- **[More resource and info about native Addons](#resources)**\n- **[Badges](#badges)**\n- **[Code of Conduct](CODE_OF_CONDUCT.md)**\n- **[Contributors](#contributors)**\n- **[License](#license)**\n\n## **Current version: 3.2.1**\n\n(See [CHANGELOG.md](CHANGELOG.md) for complete Changelog)\n\n[](https://nodei.co/npm/node-addon-api/) [](https://nodei.co/npm/node-addon-api/)\n\n<a name=\"setup\"></a>\n\nnode-addon-api is based on [Node-API](https://nodejs.org/api/n-api.html) and supports using different Node-API versions.\nThis allows addons built with it to run with Node.js versions which support the targeted Node-API version.\n**However** the node-addon-api support model is to support only the active LTS Node.js versions. This means that\nevery year there will be a new major which drops support for the Node.js LTS version which has gone out of service.\n\nThe oldest Node.js version supported by the current version of node-addon-api is Node.js 10.x.\n\n## Setup\n - [Installation and usage](doc/setup.md)\n - [node-gyp](doc/node-gyp.md)\n - [cmake-js](doc/cmake-js.md)\n - [Conversion tool](doc/conversion-tool.md)\n - [Checker tool](doc/checker-tool.md)\n - [Generator](doc/generator.md)\n - [Prebuild tools](doc/prebuild_tools.md)\n\n<a name=\"api\"></a>\n\n### **API Documentation**\n\nThe following is the documentation for node-addon-api.\n\n - [Full Class Hierarchy](doc/hierarchy.md)\n - [Addon Structure](doc/addon.md)\n - Data Types:\n - [Env](doc/env.md)\n - [CallbackInfo](doc/callbackinfo.md)\n - [Reference](doc/reference.md)\n - [Value](doc/value.md)\n - [Name](doc/name.md)\n - [Symbol](doc/symbol.md)\n - [String](doc/string.md)\n - [Number](doc/number.md)\n - [Date](doc/date.md)\n - [BigInt](doc/bigint.md)\n - [Boolean](doc/boolean.md)\n - [External](doc/external.md)\n - [Object](doc/object.md)\n - [Array](doc/array.md)\n - [ObjectReference](doc/object_reference.md)\n - [PropertyDescriptor](doc/property_descriptor.md)\n - [Function](doc/function.md)\n - [FunctionReference](doc/function_reference.md)\n - [ObjectWrap](doc/object_wrap.md)\n - [ClassPropertyDescriptor](doc/class_property_descriptor.md)\n - [Buffer](doc/buffer.md)\n - [ArrayBuffer](doc/array_buffer.md)\n - [TypedArray](doc/typed_array.md)\n - [TypedArrayOf](doc/typed_array_of.md)\n - [DataView](doc/dataview.md)\n - [Error Handling](doc/error_handling.md)\n - [Error](doc/error.md)\n - [TypeError](doc/type_error.md)\n - [RangeError](doc/range_error.md)\n - [Object Lifetime Management](doc/object_lifetime_management.md)\n - [HandleScope](doc/handle_scope.md)\n - [EscapableHandleScope](doc/escapable_handle_scope.md)\n - [Memory Management](doc/memory_management.md)\n - [Async Operations](doc/async_operations.md)\n - [AsyncWorker](doc/async_worker.md)\n - [AsyncContext](doc/async_context.md)\n - [AsyncWorker Variants](doc/async_worker_variants.md)\n - [Thread-safe Functions](doc/threadsafe.md)\n - [ThreadSafeFunction](doc/threadsafe_function.md)\n - [TypedThreadSafeFunction](doc/typed_threadsafe_function.md)\n - [Promises](doc/promises.md)\n - [Version management](doc/version_management.md)\n\n<a name=\"examples\"></a>\n\n### **Examples**\n\nAre you new to **node-addon-api**? Take a look at our **[examples](https://github.com/nodejs/node-addon-examples)**\n\n- **[Hello World](https://github.com/nodejs/node-addon-examples/tree/HEAD/1_hello_world/node-addon-api)**\n- **[Pass arguments to a function](https://github.com/nodejs/node-addon-examples/tree/HEAD/2_function_arguments/node-addon-api)**\n- **[Callbacks](https://github.com/nodejs/node-addon-examples/tree/HEAD/3_callbacks/node-addon-api)**\n- **[Object factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/4_object_factory/node-addon-api)**\n- **[Function factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/5_function_factory/node-addon-api)**\n- **[Wrapping C++ Object](https://github.com/nodejs/node-addon-examples/tree/HEAD/6_object_wrap/node-addon-api)**\n- **[Factory of wrapped object](https://github.com/nodejs/node-addon-examples/tree/HEAD/7_factory_wrap/node-addon-api)**\n- **[Passing wrapped object around](https://github.com/nodejs/node-addon-examples/tree/HEAD/8_passing_wrapped/node-addon-api)**\n\n<a name=\"tests\"></a>\n\n### **Tests**\n\nTo run the **node-addon-api** tests do:\n\n```\nnpm install\nnpm test\n```\n\nTo avoid testing the deprecated portions of the API run\n```\nnpm install\nnpm test --disable-deprecated\n```\n\nTo run the tests targeting a specific version of Node-API run\n```\nnpm install\nexport NAPI_VERSION=X\nnpm test --NAPI_VERSION=X\n```\n\nwhere X is the version of Node-API you want to target.\n\n### **Debug**\n\nTo run the **node-addon-api** tests with `--debug` option:\n\n```\nnpm run-script dev\n```\n\nIf you want faster build, you might use the following option:\n\n```\nnpm run-script dev:incremental\n```\n\nTake a look and get inspired by our **[test suite](https://github.com/nodejs/node-addon-api/tree/HEAD/test)**\n\n### **Benchmarks**\n\nYou can run the available benchmarks using the following command:\n\n```\nnpm run-script benchmark\n```\n\nSee [benchmark/README.md](benchmark/README.md) for more details about running and adding benchmarks.\n\n<a name=\"resources\"></a>\n\n### **More resource and info about native Addons**\n- **[C++ Addons](https://nodejs.org/dist/latest/docs/api/addons.html)**\n- **[Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)**\n- **[Node-API - Next Generation Node API for Native Modules](https://youtu.be/-Oniup60Afs)**\n- **[How We Migrated Realm JavaScript From NAN to Node-API](https://developer.mongodb.com/article/realm-javascript-nan-to-n-api)**\n\nAs node-addon-api's core mission is to expose the plain C Node-API as C++\nwrappers, tools that facilitate n-api/node-addon-api providing more\nconvenient patterns on developing a Node.js add-ons with n-api/node-addon-api\ncan be published to NPM as standalone packages. It is also recommended to tag\nsuch packages with `node-addon-api` to provide more visibility to the community.\n\nQuick links to NPM searches: [keywords:node-addon-api](https://www.npmjs.com/search?q=keywords%3Anode-addon-api).\n\n<a name=\"other-bindings\"></a>\n\n### **Other bindings**\n\n- **[napi-rs](https://napi.rs)** - (`Rust`)\n\n<a name=\"badges\"></a>\n\n### **Badges**\n\nThe use of badges is recommended to indicate the minimum version of Node-API\nrequired for the module. This helps to determine which Node.js major versions are\nsupported. Addon maintainers can consult the [Node-API support matrix][] to determine\nwhich Node.js versions provide a given Node-API version. The following badges are\navailable:\n\n\n\n\n\n\n\n\n\n\n\n## **Contributing**\n\nWe love contributions from the community to **node-addon-api**!\nSee [CONTRIBUTING.md](CONTRIBUTING.md) for more details on our philosophy around extending this module.\n\n<a name=\"contributors\"></a>\n\n## Team members\n\n### Active\n| Name | GitHub Link |\n| ------------------- | ----------------------------------------------------- |\n| Anna Henningsen | [addaleax](https://github.com/addaleax) |\n| Chengzhong Wu | [legendecas](https://github.com/legendecas) |\n| Gabriel Schulhof | [gabrielschulhof](https://github.com/gabrielschulhof) |\n| Jim Schlight | [jschlight](https://github.com/jschlight) |\n| Michael Dawson | [mhdawson](https://github.com/mhdawson) |\n| Kevin Eady | [KevinEady](https://github.com/KevinEady)\n| Nicola Del Gobbo | [NickNaso](https://github.com/NickNaso) |\n\n### Emeritus\n| Name | GitHub Link |\n| ------------------- | ----------------------------------------------------- |\n| Arunesh Chandra | [aruneshchandra](https://github.com/aruneshchandra) |\n| Benjamin Byholm | [kkoopa](https://github.com/kkoopa) |\n| Jason Ginchereau | [jasongin](https://github.com/jasongin) |\n| Hitesh Kanwathirtha | [digitalinfinity](https://github.com/digitalinfinity) |\n| Sampson Gao | [sampsongao](https://github.com/sampsongao) |\n| Taylor Woll | [boingoing](https://github.com/boingoing) |\n\n<a name=\"license\"></a>\n\nLicensed under [MIT](./LICENSE.md)\n\n[ABI stability guide]: https://nodejs.org/en/docs/guides/abi-stability/\n[Node-API support matrix]: https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api_version_matrix\n# Glob\n\nMatch files using the patterns the shell uses, like stars and stuff.\n\n[](https://travis-ci.org/isaacs/node-glob/) [](https://ci.appveyor.com/project/isaacs/node-glob) [](https://coveralls.io/github/isaacs/node-glob?branch=master)\n\nThis is a glob implementation in JavaScript. It uses the `minimatch`\nlibrary to do its matching.\n\n\n\n## Usage\n\nInstall with npm\n\n```\nnpm i glob\n```\n\n```javascript\nvar glob = require(\"glob\")\n\n// options is optional\nglob(\"**/*.js\", options, function (er, files) {\n // files is an array of filenames.\n // If the `nonull` option is set, and nothing\n // was found, then files is [\"**/*.js\"]\n // er is an error object or null.\n})\n```\n\n## Glob Primer\n\n\"Globs\" are the patterns you type when you do stuff like `ls *.js` on\nthe command line, or put `build/*` in a `.gitignore` file.\n\nBefore parsing the path part patterns, braced sections are expanded\ninto a set. Braced sections start with `{` and end with `}`, with any\nnumber of comma-delimited sections within. Braced sections may contain\nslash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.\n\nThe following characters have special magic meaning when used in a\npath portion:\n\n* `*` Matches 0 or more characters in a single path portion\n* `?` Matches 1 character\n* `[...]` Matches a range of characters, similar to a RegExp range.\n If the first character of the range is `!` or `^` then it matches\n any character not in the range.\n* `!(pattern|pattern|pattern)` Matches anything that does not match\n any of the patterns provided.\n* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the\n patterns provided.\n* `+(pattern|pattern|pattern)` Matches one or more occurrences of the\n patterns provided.\n* `*(a|b|c)` Matches zero or more occurrences of the patterns provided\n* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns\n provided\n* `**` If a \"globstar\" is alone in a path portion, then it matches\n zero or more directories and subdirectories searching for matches.\n It does not crawl symlinked directories.\n\n### Dots\n\nIf a file or directory path portion has a `.` as the first character,\nthen it will not match any glob pattern unless that pattern's\ncorresponding path part also has a `.` as its first character.\n\nFor example, the pattern `a/.*/c` would match the file at `a/.b/c`.\nHowever the pattern `a/*/c` would not, because `*` does not start with\na dot character.\n\nYou can make glob treat dots as normal characters by setting\n`dot:true` in the options.\n\n### Basename Matching\n\nIf you set `matchBase:true` in the options, and the pattern has no\nslashes in it, then it will seek for any file anywhere in the tree\nwith a matching basename. For example, `*.js` would match\n`test/simple/basic.js`.\n\n### Empty Sets\n\nIf no matching files are found, then an empty array is returned. This\ndiffers from the shell, where the pattern itself is returned. For\nexample:\n\n $ echo a*s*d*f\n a*s*d*f\n\nTo get the bash-style behavior, set the `nonull:true` in the options.\n\n### See Also:\n\n* `man sh`\n* `man bash` (Search for \"Pattern Matching\")\n* `man 3 fnmatch`\n* `man 5 gitignore`\n* [minimatch documentation](https://github.com/isaacs/minimatch)\n\n## glob.hasMagic(pattern, [options])\n\nReturns `true` if there are any special characters in the pattern, and\n`false` otherwise.\n\nNote that the options affect the results. If `noext:true` is set in\nthe options object, then `+(a|b)` will not be considered a magic\npattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`\nthen that is considered magical, unless `nobrace:true` is set in the\noptions.\n\n## glob(pattern, [options], cb)\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* `cb` `{Function}`\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nPerform an asynchronous glob search.\n\n## glob.sync(pattern, [options])\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* return: `{Array<String>}` filenames found matching the pattern\n\nPerform a synchronous glob search.\n\n## Class: glob.Glob\n\nCreate a Glob object by instantiating the `glob.Glob` class.\n\n```javascript\nvar Glob = require(\"glob\").Glob\nvar mg = new Glob(pattern, options, cb)\n```\n\nIt's an EventEmitter, and starts walking the filesystem to find matches\nimmediately.\n\n### new glob.Glob(pattern, [options], [cb])\n\n* `pattern` `{String}` pattern to search for\n* `options` `{Object}`\n* `cb` `{Function}` Called when an error occurs, or matches are found\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nNote that if the `sync` flag is set in the options, then matches will\nbe immediately available on the `g.found` member.\n\n### Properties\n\n* `minimatch` The minimatch object that the glob uses.\n* `options` The options object passed in.\n* `aborted` Boolean which is set to true when calling `abort()`. There\n is no way at this time to continue a glob search after aborting, but\n you can re-use the statCache to avoid having to duplicate syscalls.\n* `cache` Convenience object. Each field has the following possible\n values:\n * `false` - Path does not exist\n * `true` - Path exists\n * `'FILE'` - Path exists, and is not a directory\n * `'DIR'` - Path exists, and is a directory\n * `[file, entries, ...]` - Path exists, is a directory, and the\n array value is the results of `fs.readdir`\n* `statCache` Cache of `fs.stat` results, to prevent statting the same\n path multiple times.\n* `symlinks` A record of which paths are symbolic links, which is\n relevant in resolving `**` patterns.\n* `realpathCache` An optional object which is passed to `fs.realpath`\n to minimize unnecessary syscalls. It is stored on the instantiated\n Glob object, and may be re-used.\n\n### Events\n\n* `end` When the matching is finished, this is emitted with all the\n matches found. If the `nonull` option is set, and no match was found,\n then the `matches` list contains the original pattern. The matches\n are sorted, unless the `nosort` flag is set.\n* `match` Every time a match is found, this is emitted with the specific\n thing that matched. It is not deduplicated or resolved to a realpath.\n* `error` Emitted when an unexpected error is encountered, or whenever\n any fs error occurs if `options.strict` is set.\n* `abort` When `abort()` is called, this event is raised.\n\n### Methods\n\n* `pause` Temporarily stop the search\n* `resume` Resume the search\n* `abort` Stop the search forever\n\n### Options\n\nAll the options that can be passed to Minimatch can also be passed to\nGlob to change pattern matching behavior. Also, some have been added,\nor have glob-specific ramifications.\n\nAll options are false by default, unless otherwise noted.\n\nAll options are added to the Glob object, as well.\n\nIf you are running many `glob` operations, you can pass a Glob object\nas the `options` argument to a subsequent operation to shortcut some\n`stat` and `readdir` calls. At the very least, you may pass in shared\n`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that\nparallel glob operations will be sped up by sharing information about\nthe filesystem.\n\n* `cwd` The current working directory in which to search. Defaults\n to `process.cwd()`.\n* `root` The place where patterns starting with `/` will be mounted\n onto. Defaults to `path.resolve(options.cwd, \"/\")` (`/` on Unix\n systems, and `C:\\` or some such on Windows.)\n* `dot` Include `.dot` files in normal matches and `globstar` matches.\n Note that an explicit dot in a portion of the pattern will always\n match dot files.\n* `nomount` By default, a pattern starting with a forward-slash will be\n \"mounted\" onto the root setting, so that a valid filesystem path is\n returned. Set this flag to disable that behavior.\n* `mark` Add a `/` character to directory matches. Note that this\n requires additional stat calls.\n* `nosort` Don't sort the results.\n* `stat` Set to true to stat *all* results. This reduces performance\n somewhat, and is completely unnecessary, unless `readdir` is presumed\n to be an untrustworthy indicator of file existence.\n* `silent` When an unusual error is encountered when attempting to\n read a directory, a warning will be printed to stderr. Set the\n `silent` option to true to suppress these warnings.\n* `strict` When an unusual error is encountered when attempting to\n read a directory, the process will just continue on in search of\n other matches. Set the `strict` option to raise an error in these\n cases.\n* `cache` See `cache` property above. Pass in a previously generated\n cache object to save some fs calls.\n* `statCache` A cache of results of filesystem information, to prevent\n unnecessary stat calls. While it should not normally be necessary\n to set this, you may pass the statCache from one glob() call to the\n options object of another, if you know that the filesystem will not\n change between calls. (See \"Race Conditions\" below.)\n* `symlinks` A cache of known symbolic links. You may pass in a\n previously generated `symlinks` object to save `lstat` calls when\n resolving `**` matches.\n* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.\n* `nounique` In some cases, brace-expanded patterns can result in the\n same file showing up multiple times in the result set. By default,\n this implementation prevents duplicates in the result set. Set this\n flag to disable that behavior.\n* `nonull` Set to never return an empty set, instead returning a set\n containing the pattern itself. This is the default in glob(3).\n* `debug` Set to enable debug logging in minimatch and glob.\n* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.\n* `noglobstar` Do not match `**` against multiple filenames. (Ie,\n treat it as a normal `*` instead.)\n* `noext` Do not match `+(a|b)` \"extglob\" patterns.\n* `nocase` Perform a case-insensitive match. Note: on\n case-insensitive filesystems, non-magic patterns will match by\n default, since `stat` and `readdir` will not raise errors.\n* `matchBase` Perform a basename-only match if the pattern does not\n contain any slash characters. That is, `*.js` would be treated as\n equivalent to `**/*.js`, matching all js files in all directories.\n* `nodir` Do not match directories, only files. (Note: to match\n *only* directories, simply put a `/` at the end of the pattern.)\n* `ignore` Add a pattern or an array of glob patterns to exclude matches.\n Note: `ignore` patterns are *always* in `dot:true` mode, regardless\n of any other settings.\n* `follow` Follow symlinked directories when expanding `**` patterns.\n Note that this can result in a lot of duplicate references in the\n presence of cyclic links.\n* `realpath` Set to true to call `fs.realpath` on all of the results.\n In the case of a symlink that cannot be resolved, the full absolute\n path to the matched entry is returned (though it will usually be a\n broken symlink)\n* `absolute` Set to true to always receive absolute paths for matched\n files. Unlike `realpath`, this also affects the values returned in\n the `match` event.\n* `fs` File-system object with Node's `fs` API. By default, the built-in\n `fs` module will be used. Set to a volume provided by a library like\n `memfs` to avoid using the \"real\" file-system.\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between node-glob and other\nimplementations, and are intentional.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.3, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nNote that symlinked directories are not crawled as part of a `**`,\nthough their contents may match against subsequent portions of the\npattern. This prevents infinite loops and duplicates and the like.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen glob returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`glob.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n\n### Comments and Negation\n\nPreviously, this module let you mark a pattern as a \"comment\" if it\nstarted with a `#` character, or a \"negated\" pattern if it started\nwith a `!` character.\n\nThese options were deprecated in version 5, and removed in version 6.\n\nTo specify things that should not match, use the `ignore` option.\n\n## Windows\n\n**Please only use forward-slashes in glob expressions.**\n\nThough windows uses either `/` or `\\` as its path separator, only `/`\ncharacters are used by this glob implementation. You must use\nforward-slashes **only** in glob expressions. Back-slashes will always\nbe interpreted as escape characters, not path separators.\n\nResults from absolute patterns such as `/foo/*` are mounted onto the\nroot setting using `path.join`. On windows, this will by default result\nin `/foo/*` matching `C:\\foo\\bar.txt`.\n\n## Race Conditions\n\nGlob searching, by its very nature, is susceptible to race conditions,\nsince it relies on directory walking and such.\n\nAs a result, it is possible that a file that exists when glob looks for\nit may have been deleted or modified by the time it returns the result.\n\nAs part of its internal implementation, this program caches all stat\nand readdir calls that it makes, in order to cut down on system\noverhead. However, this also makes it even more susceptible to races,\nespecially if the cache or statCache objects are reused between glob\ncalls.\n\nUsers are thus advised not to use a glob result as a guarantee of\nfilesystem state in the face of rapid changes. For the vast majority\nof operations, this is never a problem.\n\n## Glob Logo\nGlob's logo was created by [Tanya Brassie](http://tanyabrassie.com/). Logo files can be found [here](https://github.com/isaacs/node-glob/tree/master/logo).\n\nThe logo is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/).\n\n## Contributing\n\nAny change to behavior (including bugfixes) must come with a test.\n\nPatches that fail tests or reduce performance will be rejected.\n\n```\n# to run tests\nnpm test\n\n# to re-generate test fixtures\nnpm run test-regen\n\n# to benchmark against bash/zsh\nnpm run bench\n\n# to profile javascript\nnpm run prof\n```\n\n\n# Can I cache this? [](https://travis-ci.org/kornelski/http-cache-semantics)\n\n`CachePolicy` tells when responses can be reused from a cache, taking into account [HTTP RFC 7234](http://httpwg.org/specs/rfc7234.html) rules for user agents and shared caches.\nIt also implements [RFC 5861](https://tools.ietf.org/html/rfc5861), implementing `stale-if-error` and `stale-while-revalidate`.\nIt's aware of many tricky details such as the `Vary` header, proxy revalidation, and authenticated responses.\n\n## Usage\n\nCacheability of an HTTP response depends on how it was requested, so both `request` and `response` are required to create the policy.\n\n```js\nconst policy = new CachePolicy(request, response, options);\n\nif (!policy.storable()) {\n // throw the response away, it's not usable at all\n return;\n}\n\n// Cache the data AND the policy object in your cache\n// (this is pseudocode, roll your own cache (lru-cache package works))\nletsPretendThisIsSomeCache.set(\n request.url,\n { policy, response },\n policy.timeToLive()\n);\n```\n\n```js\n// And later, when you receive a new request:\nconst { policy, response } = letsPretendThisIsSomeCache.get(newRequest.url);\n\n// It's not enough that it exists in the cache, it has to match the new request, too:\nif (policy && policy.satisfiesWithoutRevalidation(newRequest)) {\n // OK, the previous response can be used to respond to the `newRequest`.\n // Response headers have to be updated, e.g. to add Age and remove uncacheable headers.\n response.headers = policy.responseHeaders();\n return response;\n}\n```\n\nIt may be surprising, but it's not enough for an HTTP response to be [fresh](#yo-fresh) to satisfy a request. It may need to match request headers specified in `Vary`. Even a matching fresh response may still not be usable if the new request restricted cacheability, etc.\n\nThe key method is `satisfiesWithoutRevalidation(newRequest)`, which checks whether the `newRequest` is compatible with the original request and whether all caching conditions are met.\n\n### Constructor options\n\nRequest and response must have a `headers` property with all header names in lower case. `url`, `status` and `method` are optional (defaults are any URL, status `200`, and `GET` method).\n\n```js\nconst request = {\n url: '/',\n method: 'GET',\n headers: {\n accept: '*/*',\n },\n};\n\nconst response = {\n status: 200,\n headers: {\n 'cache-control': 'public, max-age=7234',\n },\n};\n\nconst options = {\n shared: true,\n cacheHeuristic: 0.1,\n immutableMinTimeToLive: 24 * 3600 * 1000, // 24h\n ignoreCargoCult: false,\n};\n```\n\nIf `options.shared` is `true` (default), then the response is evaluated from a perspective of a shared cache (i.e. `private` is not cacheable and `s-maxage` is respected). If `options.shared` is `false`, then the response is evaluated from a perspective of a single-user cache (i.e. `private` is cacheable and `s-maxage` is ignored). `shared: true` is recommended for HTTP clients.\n\n`options.cacheHeuristic` is a fraction of response's age that is used as a fallback cache duration. The default is 0.1 (10%), e.g. if a file hasn't been modified for 100 days, it'll be cached for 100\\*0.1 = 10 days.\n\n`options.immutableMinTimeToLive` is a number of milliseconds to assume as the default time to cache responses with `Cache-Control: immutable`. Note that [per RFC](http://httpwg.org/http-extensions/immutable.html) these can become stale, so `max-age` still overrides the default.\n\nIf `options.ignoreCargoCult` is true, common anti-cache directives will be completely ignored if the non-standard `pre-check` and `post-check` directives are present. These two useless directives are most commonly found in bad StackOverflow answers and PHP's \"session limiter\" defaults.\n\n### `storable()`\n\nReturns `true` if the response can be stored in a cache. If it's `false` then you MUST NOT store either the request or the response.\n\n### `satisfiesWithoutRevalidation(newRequest)`\n\nThis is the most important method. Use this method to check whether the cached response is still fresh in the context of the new request.\n\nIf it returns `true`, then the given `request` matches the original response this cache policy has been created with, and the response can be reused without contacting the server. Note that the old response can't be returned without being updated, see `responseHeaders()`.\n\nIf it returns `false`, then the response may not be matching at all (e.g. it's for a different URL or method), or may require to be refreshed first (see `revalidationHeaders()`).\n\n### `responseHeaders()`\n\nReturns updated, filtered set of response headers to return to clients receiving the cached response. This function is necessary, because proxies MUST always remove hop-by-hop headers (such as `TE` and `Connection`) and update response's `Age` to avoid doubling cache time.\n\n```js\ncachedResponse.headers = cachePolicy.responseHeaders(cachedResponse);\n```\n\n### `timeToLive()`\n\nReturns approximate time in _milliseconds_ until the response becomes stale (i.e. not fresh).\n\nAfter that time (when `timeToLive() <= 0`) the response might not be usable without revalidation. However, there are exceptions, e.g. a client can explicitly allow stale responses, so always check with `satisfiesWithoutRevalidation()`.\n`stale-if-error` and `stale-while-revalidate` extend the time to live of the cache, that can still be used if stale.\n\n### `toObject()`/`fromObject(json)`\n\nChances are you'll want to store the `CachePolicy` object along with the cached response. `obj = policy.toObject()` gives a plain JSON-serializable object. `policy = CachePolicy.fromObject(obj)` creates an instance from it.\n\n### Refreshing stale cache (revalidation)\n\nWhen a cached response has expired, it can be made fresh again by making a request to the origin server. The server may respond with status 304 (Not Modified) without sending the response body again, saving bandwidth.\n\nThe following methods help perform the update efficiently and correctly.\n\n#### `revalidationHeaders(newRequest)`\n\nReturns updated, filtered set of request headers to send to the origin server to check if the cached response can be reused. These headers allow the origin server to return status 304 indicating the response is still fresh. All headers unrelated to caching are passed through as-is.\n\nUse this method when updating cache from the origin server.\n\n```js\nupdateRequest.headers = cachePolicy.revalidationHeaders(updateRequest);\n```\n\n#### `revalidatedPolicy(revalidationRequest, revalidationResponse)`\n\nUse this method to update the cache after receiving a new response from the origin server. It returns an object with two keys:\n\n- `policy` — A new `CachePolicy` with HTTP headers updated from `revalidationResponse`. You can always replace the old cached `CachePolicy` with the new one.\n- `modified` — Boolean indicating whether the response body has changed.\n - If `false`, then a valid 304 Not Modified response has been received, and you can reuse the old cached response body. This is also affected by `stale-if-error`.\n - If `true`, you should use new response's body (if present), or make another request to the origin server without any conditional headers (i.e. don't use `revalidationHeaders()` this time) to get the new resource.\n\n```js\n// When serving requests from cache:\nconst { oldPolicy, oldResponse } = letsPretendThisIsSomeCache.get(\n newRequest.url\n);\n\nif (!oldPolicy.satisfiesWithoutRevalidation(newRequest)) {\n // Change the request to ask the origin server if the cached response can be used\n newRequest.headers = oldPolicy.revalidationHeaders(newRequest);\n\n // Send request to the origin server. The server may respond with status 304\n const newResponse = await makeRequest(newRequest);\n\n // Create updated policy and combined response from the old and new data\n const { policy, modified } = oldPolicy.revalidatedPolicy(\n newRequest,\n newResponse\n );\n const response = modified ? newResponse : oldResponse;\n\n // Update the cache with the newer/fresher response\n letsPretendThisIsSomeCache.set(\n newRequest.url,\n { policy, response },\n policy.timeToLive()\n );\n\n // And proceed returning cached response as usual\n response.headers = policy.responseHeaders();\n return response;\n}\n```\n\n# Yo, FRESH\n\n\n\n## Used by\n\n- [ImageOptim API](https://imageoptim.com/api), [make-fetch-happen](https://github.com/zkat/make-fetch-happen), [cacheable-request](https://www.npmjs.com/package/cacheable-request) ([got](https://www.npmjs.com/package/got)), [npm/registry-fetch](https://github.com/npm/registry-fetch), [etc.](https://github.com/kornelski/http-cache-semantics/network/dependents)\n\n## Implemented\n\n- `Cache-Control` response header with all the quirks.\n- `Expires` with check for bad clocks.\n- `Pragma` response header.\n- `Age` response header.\n- `Vary` response header.\n- Default cacheability of statuses and methods.\n- Requests for stale data.\n- Filtering of hop-by-hop headers.\n- Basic revalidation request\n- `stale-if-error`\n\n## Unimplemented\n\n- Merging of range requests, `If-Range` (but correctly supports them as non-cacheable)\n- Revalidation of multiple representations\n\n### Trusting server `Date`\n\nPer the RFC, the cache should take into account the time between server-supplied `Date` and the time it received the response. The RFC-mandated behavior creates two problems:\n\n * Servers with incorrectly set timezone may add several hours to cache age (or more, if the clock is completely wrong).\n * Even reasonably correct clocks may be off by a couple of seconds, breaking `max-age=1` trick (which is useful for reverse proxies on high-traffic servers).\n\nPrevious versions of this library had an option to ignore the server date if it was \"too inaccurate\". To support the `max-age=1` trick the library also has to ignore dates that pretty accurate. There's no point of having an option to trust dates that are only a bit inaccurate, so this library won't trust any server dates. `max-age` will be interpreted from the time the response has been received, not from when it has been sent. This will affect only [RFC 1149 networks](https://tools.ietf.org/html/rfc1149).\n# napi-build-utils\n\n[](https://www.npmjs.com/package/napi-build-utils)\n\n[](https://travis-ci.org/inspiredware/napi-build-utils) \n[](http://standardjs.com/) \n[](https://opensource.org/licenses/MIT) \n\nA set of utilities to assist developers of tools that build [N-API](https://nodejs.org/api/n-api.html#n_api_n_api) native add-ons.\n\n## Background\n\nThis module is targeted to developers creating tools that build N-API native add-ons. \n\nIt implements a set of functions that aid in determining the N-API version supported by the currently running Node instance and the set of N-API versions against which the N-API native add-on is designed to be built. Other functions determine whether a particular N-API version can be built and can issue console warnings for unsupported N-API versions. \n\nUnlike the modules this code is designed to facilitate building, this module is written entirely in JavaScript. \n\n## Quick start\n\n```bash\n$ npm install napi-build-utils\n```\n\nThe module exports a set of functions documented [here](./index.md). For example:\n\n```javascript\nvar napiBuildUtils = require('napi-build-utils');\nvar napiVersion = napiBuildUtils.getNapiVersion(); // N-API version supported by Node, or undefined.\n```\n\n## Declaring supported N-API versions\n\nNative modules that are designed to work with [N-API](https://nodejs.org/api/n-api.html#n_api_n_api) must explicitly declare the N-API version(s) against which they are coded to build. This is accomplished by including a `binary.napi_versions` property in the module's `package.json` file. For example:\n\n```json\n\"binary\": {\n \"napi_versions\": [2,3]\n}\n``` \n\nIn the absence of a need to compile against a specific N-API version, the value `3` is a good choice as this is the N-API version that was supported when N-API left experimental status. \n\nModules that are built against a specific N-API version will continue to operate indefinitely, even as later versions of N-API are introduced. \n\n## Support\n\nIf you run into problems or limitations, please file an issue and we'll take a look. Pull requests are also welcome.\n# signal-exit\n\n[](https://travis-ci.org/tapjs/signal-exit)\n[](https://coveralls.io/r/tapjs/signal-exit?branch=master)\n[](https://www.npmjs.com/package/signal-exit)\n[](https://github.com/conventional-changelog/standard-version)\n\nWhen you want to fire an event no matter how a process exits:\n\n* reaching the end of execution.\n* explicitly having `process.exit(code)` called.\n* having `process.kill(pid, sig)` called.\n* receiving a fatal signal from outside the process\n\nUse `signal-exit`.\n\n```js\nvar onExit = require('signal-exit')\n\nonExit(function (code, signal) {\n console.log('process exited!')\n})\n```\n\n## API\n\n`var remove = onExit(function (code, signal) {}, options)`\n\nThe return value of the function is a function that will remove the\nhandler.\n\nNote that the function *only* fires for signals if the signal would\ncause the process to exit. That is, there are no other listeners, and\nit is a fatal signal.\n\n## Options\n\n* `alwaysLast`: Run this handler after any other signal or exit\n handlers. This causes `process.emit` to be monkeypatched.\n# Polyfill for `Object.setPrototypeOf`\n\n[](https://npmjs.org/package/setprototypeof)\n[](https://npmjs.org/package/setprototypeof)\n[](https://github.com/standard/standard)\n\nA simple cross platform implementation to set the prototype of an instianted object. Supports all modern browsers and at least back to IE8.\n\n## Usage:\n\n```\n$ npm install --save setprototypeof\n```\n\n```javascript\nvar setPrototypeOf = require('setprototypeof')\n\nvar obj = {}\nsetPrototypeOf(obj, {\n foo: function () {\n return 'bar'\n }\n})\nobj.foo() // bar\n```\n\nTypeScript is also supported:\n\n```typescript\nimport setPrototypeOf from 'setprototypeof'\n```\n# pretty-format\n\nStringify any JavaScript value.\n\n- Serialize built-in JavaScript types.\n- Serialize application-specific data types with built-in or user-defined plugins.\n\n## Installation\n\n```sh\n$ yarn add pretty-format\n```\n\n## Usage\n\n```js\nconst {format: prettyFormat} = require('pretty-format'); // CommonJS\n```\n\n```js\nimport {format as prettyFormat} from 'pretty-format'; // ES2015 modules\n```\n\n```js\nconst val = {object: {}};\nval.circularReference = val;\nval[Symbol('foo')] = 'foo';\nval.map = new Map([['prop', 'value']]);\nval.array = [-0, Infinity, NaN];\n\nconsole.log(prettyFormat(val));\n/*\nObject {\n \"array\": Array [\n -0,\n Infinity,\n NaN,\n ],\n \"circularReference\": [Circular],\n \"map\": Map {\n \"prop\" => \"value\",\n },\n \"object\": Object {},\n Symbol(foo): \"foo\",\n}\n*/\n```\n\n## Usage with options\n\n```js\nfunction onClick() {}\n\nconsole.log(prettyFormat(onClick));\n/*\n[Function onClick]\n*/\n\nconst options = {\n printFunctionName: false,\n};\nconsole.log(prettyFormat(onClick, options));\n/*\n[Function]\n*/\n```\n\n<!-- prettier-ignore -->\n| key | type | default | description |\n| :-------------------- | :-------- | :--------- | :------------------------------------------------------ |\n| `callToJSON` | `boolean` | `true` | call `toJSON` method (if it exists) on objects |\n| `compareKeys` | `function`| `undefined`| compare function used when sorting object keys |\n| `escapeRegex` | `boolean` | `false` | escape special characters in regular expressions |\n| `escapeString` | `boolean` | `true` | escape special characters in strings |\n| `highlight` | `boolean` | `false` | highlight syntax with colors in terminal (some plugins) |\n| `indent` | `number` | `2` | spaces in each level of indentation |\n| `maxDepth` | `number` | `Infinity` | levels to print in arrays, objects, elements, and so on |\n| `min` | `boolean` | `false` | minimize added space: no indentation nor line breaks |\n| `plugins` | `array` | `[]` | plugins to serialize application-specific data types |\n| `printBasicPrototype` | `boolean` | `false` | print the prototype for plain objects and arrays |\n| `printFunctionName` | `boolean` | `true` | include or omit the name of a function |\n| `theme` | `object` | | colors to highlight syntax in terminal |\n\nProperty values of `theme` are from [ansi-styles colors](https://github.com/chalk/ansi-styles#colors)\n\n```js\nconst DEFAULT_THEME = {\n comment: 'gray',\n content: 'reset',\n prop: 'yellow',\n tag: 'cyan',\n value: 'green',\n};\n```\n\n## Usage with plugins\n\nThe `pretty-format` package provides some built-in plugins, including:\n\n- `ReactElement` for elements from `react`\n- `ReactTestComponent` for test objects from `react-test-renderer`\n\n```js\n// CommonJS\nconst React = require('react');\nconst renderer = require('react-test-renderer');\nconst {format: prettyFormat, plugins} = require('pretty-format');\n\nconst {ReactElement, ReactTestComponent} = plugins;\n```\n\n```js\n// ES2015 modules and destructuring assignment\nimport React from 'react';\nimport renderer from 'react-test-renderer';\nimport {plugins, format as prettyFormat} from 'pretty-format';\n\nconst {ReactElement, ReactTestComponent} = plugins;\n```\n\n```js\nconst onClick = () => {};\nconst element = React.createElement('button', {onClick}, 'Hello World');\n\nconst formatted1 = prettyFormat(element, {\n plugins: [ReactElement],\n printFunctionName: false,\n});\nconst formatted2 = prettyFormat(renderer.create(element).toJSON(), {\n plugins: [ReactTestComponent],\n printFunctionName: false,\n});\n/*\n<button\n onClick=[Function]\n>\n Hello World\n</button>\n*/\n```\n\n## Usage in Jest\n\nFor snapshot tests, Jest uses `pretty-format` with options that include some of its built-in plugins. For this purpose, plugins are also known as **snapshot serializers**.\n\nTo serialize application-specific data types, you can add modules to `devDependencies` of a project, and then:\n\nIn an **individual** test file, you can add a module as follows. It precedes any modules from Jest configuration.\n\n```js\nimport serializer from 'my-serializer-module';\nexpect.addSnapshotSerializer(serializer);\n\n// tests which have `expect(value).toMatchSnapshot()` assertions\n```\n\nFor **all** test files, you can specify modules in Jest configuration. They precede built-in plugins for React, HTML, and Immutable.js data types. For example, in a `package.json` file:\n\n```json\n{\n \"jest\": {\n \"snapshotSerializers\": [\"my-serializer-module\"]\n }\n}\n```\n\n## Writing plugins\n\nA plugin is a JavaScript object.\n\nIf `options` has a `plugins` array: for the first plugin whose `test(val)` method returns a truthy value, then `prettyFormat(val, options)` returns the result from either:\n\n- `serialize(val, …)` method of the **improved** interface (available in **version 21** or later)\n- `print(val, …)` method of the **original** interface (if plugin does not have `serialize` method)\n\n### test\n\nWrite `test` so it can receive `val` argument of any type. To serialize **objects** which have certain properties, then a guarded expression like `val != null && …` or more concise `val && …` prevents the following errors:\n\n- `TypeError: Cannot read property 'whatever' of null`\n- `TypeError: Cannot read property 'whatever' of undefined`\n\nFor example, `test` method of built-in `ReactElement` plugin:\n\n```js\nconst elementSymbol = Symbol.for('react.element');\nconst test = val => val && val.$$typeof === elementSymbol;\n```\n\nPay attention to efficiency in `test` because `pretty-format` calls it often.\n\n### serialize\n\nThe **improved** interface is available in **version 21** or later.\n\nWrite `serialize` to return a string, given the arguments:\n\n- `val` which “passed the test”\n- unchanging `config` object: derived from `options`\n- current `indentation` string: concatenate to `indent` from `config`\n- current `depth` number: compare to `maxDepth` from `config`\n- current `refs` array: find circular references in objects\n- `printer` callback function: serialize children\n\n### config\n\n<!-- prettier-ignore -->\n| key | type | description |\n| :------------------ | :-------- | :------------------------------------------------------ |\n| `callToJSON` | `boolean` | call `toJSON` method (if it exists) on objects |\n| `compareKeys` | `function`| compare function used when sorting object keys |\n| `colors` | `Object` | escape codes for colors to highlight syntax |\n| `escapeRegex` | `boolean` | escape special characters in regular expressions |\n| `escapeString` | `boolean` | escape special characters in strings |\n| `indent` | `string` | spaces in each level of indentation |\n| `maxDepth` | `number` | levels to print in arrays, objects, elements, and so on |\n| `min` | `boolean` | minimize added space: no indentation nor line breaks |\n| `plugins` | `array` | plugins to serialize application-specific data types |\n| `printFunctionName` | `boolean` | include or omit the name of a function |\n| `spacingInner` | `strong` | spacing to separate items in a list |\n| `spacingOuter` | `strong` | spacing to enclose a list of items |\n\nEach property of `colors` in `config` corresponds to a property of `theme` in `options`:\n\n- the key is the same (for example, `tag`)\n- the value in `colors` is a object with `open` and `close` properties whose values are escape codes from [ansi-styles](https://github.com/chalk/ansi-styles) for the color value in `theme` (for example, `'cyan'`)\n\nSome properties in `config` are derived from `min` in `options`:\n\n- `spacingInner` and `spacingOuter` are **newline** if `min` is `false`\n- `spacingInner` is **space** and `spacingOuter` is **empty string** if `min` is `true`\n\n### Example of serialize and test\n\nThis plugin is a pattern you can apply to serialize composite data types. Side note: `pretty-format` does not need a plugin to serialize arrays.\n\n```js\n// We reused more code when we factored out a function for child items\n// that is independent of depth, name, and enclosing punctuation (see below).\nconst SEPARATOR = ',';\nfunction serializeItems(items, config, indentation, depth, refs, printer) {\n if (items.length === 0) {\n return '';\n }\n const indentationItems = indentation + config.indent;\n return (\n config.spacingOuter +\n items\n .map(\n item =>\n indentationItems +\n printer(item, config, indentationItems, depth, refs), // callback\n )\n .join(SEPARATOR + config.spacingInner) +\n (config.min ? '' : SEPARATOR) + // following the last item\n config.spacingOuter +\n indentation\n );\n}\n\nconst plugin = {\n test(val) {\n return Array.isArray(val);\n },\n serialize(array, config, indentation, depth, refs, printer) {\n const name = array.constructor.name;\n return ++depth > config.maxDepth\n ? '[' + name + ']'\n : (config.min ? '' : name + ' ') +\n '[' +\n serializeItems(array, config, indentation, depth, refs, printer) +\n ']';\n },\n};\n```\n\n```js\nconst val = {\n filter: 'completed',\n items: [\n {\n text: 'Write test',\n completed: true,\n },\n {\n text: 'Write serialize',\n completed: true,\n },\n ],\n};\n```\n\n```js\nconsole.log(\n prettyFormat(val, {\n plugins: [plugin],\n }),\n);\n/*\nObject {\n \"filter\": \"completed\",\n \"items\": Array [\n Object {\n \"completed\": true,\n \"text\": \"Write test\",\n },\n Object {\n \"completed\": true,\n \"text\": \"Write serialize\",\n },\n ],\n}\n*/\n```\n\n```js\nconsole.log(\n prettyFormat(val, {\n indent: 4,\n plugins: [plugin],\n }),\n);\n/*\nObject {\n \"filter\": \"completed\",\n \"items\": Array [\n Object {\n \"completed\": true,\n \"text\": \"Write test\",\n },\n Object {\n \"completed\": true,\n \"text\": \"Write serialize\",\n },\n ],\n}\n*/\n```\n\n```js\nconsole.log(\n prettyFormat(val, {\n maxDepth: 1,\n plugins: [plugin],\n }),\n);\n/*\nObject {\n \"filter\": \"completed\",\n \"items\": [Array],\n}\n*/\n```\n\n```js\nconsole.log(\n prettyFormat(val, {\n min: true,\n plugins: [plugin],\n }),\n);\n/*\n{\"filter\": \"completed\", \"items\": [{\"completed\": true, \"text\": \"Write test\"}, {\"completed\": true, \"text\": \"Write serialize\"}]}\n*/\n```\n\n### print\n\nThe **original** interface is adequate for plugins:\n\n- that **do not** depend on options other than `highlight` or `min`\n- that **do not** depend on `depth` or `refs` in recursive traversal, and\n- if values either\n - do **not** require indentation, or\n - do **not** occur as children of JavaScript data structures (for example, array)\n\nWrite `print` to return a string, given the arguments:\n\n- `val` which “passed the test”\n- current `printer(valChild)` callback function: serialize children\n- current `indenter(lines)` callback function: indent lines at the next level\n- unchanging `config` object: derived from `options`\n- unchanging `colors` object: derived from `options`\n\nThe 3 properties of `config` are `min` in `options` and:\n\n- `spacing` and `edgeSpacing` are **newline** if `min` is `false`\n- `spacing` is **space** and `edgeSpacing` is **empty string** if `min` is `true`\n\nEach property of `colors` corresponds to a property of `theme` in `options`:\n\n- the key is the same (for example, `tag`)\n- the value in `colors` is a object with `open` and `close` properties whose values are escape codes from [ansi-styles](https://github.com/chalk/ansi-styles) for the color value in `theme` (for example, `'cyan'`)\n\n### Example of print and test\n\nThis plugin prints functions with the **number of named arguments** excluding rest argument.\n\n```js\nconst plugin = {\n print(val) {\n return `[Function ${val.name || 'anonymous'} ${val.length}]`;\n },\n test(val) {\n return typeof val === 'function';\n },\n};\n```\n\n```js\nconst val = {\n onClick(event) {},\n render() {},\n};\n\nprettyFormat(val, {\n plugins: [plugin],\n});\n/*\nObject {\n \"onClick\": [Function onClick 1],\n \"render\": [Function render 0],\n}\n*/\n\nprettyFormat(val);\n/*\nObject {\n \"onClick\": [Function onClick],\n \"render\": [Function render],\n}\n*/\n```\n\nThis plugin **ignores** the `printFunctionName` option. That limitation of the original `print` interface is a reason to use the improved `serialize` interface, described above.\n\n```js\nprettyFormat(val, {\n plugins: [pluginOld],\n printFunctionName: false,\n});\n/*\nObject {\n \"onClick\": [Function onClick 1],\n \"render\": [Function render 0],\n}\n*/\n\nprettyFormat(val, {\n printFunctionName: false,\n});\n/*\nObject {\n \"onClick\": [Function],\n \"render\": [Function],\n}\n*/\n```\n# `react-is`\n\nThis package allows you to test arbitrary values and see if they're a particular React element type.\n\n## Installation\n\n```sh\n# Yarn\nyarn add react-is\n\n# NPM\nnpm install react-is\n```\n\n## Usage\n\n### Determining if a Component is Valid\n\n```js\nimport React from \"react\";\nimport * as ReactIs from \"react-is\";\n\nclass ClassComponent extends React.Component {\n render() {\n return React.createElement(\"div\");\n }\n}\n\nconst FunctionComponent = () => React.createElement(\"div\");\n\nconst ForwardRefComponent = React.forwardRef((props, ref) =>\n React.createElement(Component, { forwardedRef: ref, ...props })\n);\n\nconst Context = React.createContext(false);\n\nReactIs.isValidElementType(\"div\"); // true\nReactIs.isValidElementType(ClassComponent); // true\nReactIs.isValidElementType(FunctionComponent); // true\nReactIs.isValidElementType(ForwardRefComponent); // true\nReactIs.isValidElementType(Context.Provider); // true\nReactIs.isValidElementType(Context.Consumer); // true\nReactIs.isValidElementType(React.createFactory(\"div\")); // true\n```\n\n### Determining an Element's Type\n\n#### Context\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nconst ThemeContext = React.createContext(\"blue\");\n\nReactIs.isContextConsumer(<ThemeContext.Consumer />); // true\nReactIs.isContextProvider(<ThemeContext.Provider />); // true\nReactIs.typeOf(<ThemeContext.Provider />) === ReactIs.ContextProvider; // true\nReactIs.typeOf(<ThemeContext.Consumer />) === ReactIs.ContextConsumer; // true\n```\n\n#### Element\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isElement(<div />); // true\nReactIs.typeOf(<div />) === ReactIs.Element; // true\n```\n\n#### Fragment\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isFragment(<></>); // true\nReactIs.typeOf(<></>) === ReactIs.Fragment; // true\n```\n\n#### Portal\n\n```js\nimport React from \"react\";\nimport ReactDOM from \"react-dom\";\nimport * as ReactIs from 'react-is';\n\nconst div = document.createElement(\"div\");\nconst portal = ReactDOM.createPortal(<div />, div);\n\nReactIs.isPortal(portal); // true\nReactIs.typeOf(portal) === ReactIs.Portal; // true\n```\n\n#### StrictMode\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isStrictMode(<React.StrictMode />); // true\nReactIs.typeOf(<React.StrictMode />) === ReactIs.StrictMode; // true\n```\n# is-ci\n\nReturns `true` if the current environment is a Continuous Integration\nserver.\n\nPlease [open an issue](https://github.com/watson/is-ci/issues) if your\nCI server isn't properly detected :)\n\n[](https://www.npmjs.com/package/is-ci)\n[](https://travis-ci.org/watson/is-ci)\n[](https://github.com/feross/standard)\n\n## Installation\n\n```bash\nnpm install is-ci --save\n```\n\n## Programmatic Usage\n\n```js\nconst isCI = require('is-ci')\n\nif (isCI) {\n console.log('The code is running on a CI server')\n}\n```\n\n## CLI Usage\n\nFor CLI usage you need to have the `is-ci` executable in your `PATH`.\nThere's a few ways to do that:\n\n- Either install the module globally using `npm install is-ci -g`\n- Or add the module as a dependency to your app in which case it can be\n used inside your package.json scripts as is\n- Or provide the full path to the executable, e.g.\n `./node_modules/.bin/is-ci`\n\n```bash\nis-ci && echo \"This is a CI server\"\n```\n\n## Supported CI tools\n\nRefer to [ci-info](https://github.com/watson/ci-info#supported-ci-tools) docs for all supported CI's\n\n## License\n\n[MIT](LICENSE)\n# Borsh JS\n\n[](https://opensource.org/licenses/Apache-2.0)\n[](https://opensource.org/licenses/MIT)\n[](https://discord.gg/Vyp7ETM)\n[](https://travis-ci.com/near/borsh-js)\n[](https://npmjs.com/borsh)\n[](https://npmjs.com/borsh)\n\n**Borsh JS** is an implementation of the [Borsh] binary serialization format for\nJavaScript and TypeScript projects.\n\nBorsh stands for _Binary Object Representation Serializer for Hashing_. It is meant to be used in security-critical projects as it prioritizes consistency,\nsafety, speed, and comes with a strict specification.\n\n## Examples\n### Serializing an object\n```javascript\nconst value = new Test({ x: 255, y: 20, z: '123', q: [1, 2, 3] });\nconst schema = new Map([[Test, { kind: 'struct', fields: [['x', 'u8'], ['y', 'u64'], ['z', 'string'], ['q', [3]]] }]]);\nconst buffer = borsh.serialize(schema, value);\n```\n\n### Deserializing an object\n```javascript\nconst newValue = borsh.deserialize(schema, Test, buffer);\n```\n\n## Type Mappings\n\n| Borsh | TypeScript |\n|-----------------------|----------------|\n| `u8` integer | `number` |\n| `u16` integer | `number` |\n| `u32` integer | `number` |\n| `u64` integer | `BN` |\n| `u128` integer | `BN` |\n| `u256` integer | `BN` |\n| `u512` integer | `BN` |\n| `f32` float | N/A |\n| `f64` float | N/A |\n| fixed-size byte array | `Uint8Array` |\n| UTF-8 string | `string` |\n| option | `null` or type |\n| map | N/A |\n| set | N/A |\n| structs | `any` |\n\n## Contributing\n\nInstall dependencies:\n```bash\nyarn install\n```\n\nContinuously build with:\n```bash\nyarn dev\n```\n\nRun tests:\n```bash\nyarn test\n```\n\nRun linter\n```bash\nyarn lint\n```\n## Publish\n\nPrepare `dist` version by running:\n```bash\nyarn build\n```\n\nWhen publishing to npm use [np](https://github.com/sindresorhus/np).\n\n# License\nThis repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0).\nSee [LICENSE-MIT](LICENSE-MIT.txt) and [LICENSE-APACHE](LICENSE-APACHE) for details.\n\n[Borsh]: https://borsh.io\n# ieee754 [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/ieee754/master.svg\n[travis-url]: https://travis-ci.org/feross/ieee754\n[npm-image]: https://img.shields.io/npm/v/ieee754.svg\n[npm-url]: https://npmjs.org/package/ieee754\n[downloads-image]: https://img.shields.io/npm/dm/ieee754.svg\n[downloads-url]: https://npmjs.org/package/ieee754\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n[![saucelabs][saucelabs-image]][saucelabs-url]\n\n[saucelabs-image]: https://saucelabs.com/browser-matrix/ieee754.svg\n[saucelabs-url]: https://saucelabs.com/u/ieee754\n\n### Read/write IEEE754 floating point numbers from/to a Buffer or array-like object.\n\n## install\n\n```\nnpm install ieee754\n```\n\n## methods\n\n`var ieee754 = require('ieee754')`\n\nThe `ieee754` object has the following functions:\n\n```\nieee754.read = function (buffer, offset, isLE, mLen, nBytes)\nieee754.write = function (buffer, value, offset, isLE, mLen, nBytes)\n```\n\nThe arguments mean the following:\n\n- buffer = the buffer\n- offset = offset into the buffer\n- value = value to set (only for `write`)\n- isLe = is little endian?\n- mLen = mantissa length\n- nBytes = number of bytes\n\n## what is ieee754?\n\nThe IEEE Standard for Floating-Point Arithmetic (IEEE 754) is a technical standard for floating-point computation. [Read more](http://en.wikipedia.org/wiki/IEEE_floating_point).\n\n## license\n\nBSD 3 Clause. Copyright (c) 2008, Fair Oaks Labs, Inc.\n# json-parse-better-errors [](https://npm.im/json-parse-better-errors) [](https://npm.im/json-parse-better-errors) [](https://travis-ci.org/zkat/json-parse-better-errors) [](https://ci.appveyor.com/project/zkat/json-parse-better-errors) [](https://coveralls.io/github/zkat/json-parse-better-errors?branch=latest)\n\n[`json-parse-better-errors`](https://github.com/zkat/json-parse-better-errors) is a Node.js library for\ngetting nicer errors out of `JSON.parse()`, including context and position of the parse errors.\n\n## Install\n\n`$ npm install --save json-parse-better-errors`\n\n## Table of Contents\n\n* [Example](#example)\n* [Features](#features)\n* [Contributing](#contributing)\n* [API](#api)\n * [`parse`](#parse)\n\n### Example\n\n```javascript\nconst parseJson = require('json-parse-better-errors')\n\nparseJson('\"foo\"')\nparseJson('garbage') // more useful error message\n```\n\n### Features\n\n* Like JSON.parse, but the errors are better.\n\n### Contributing\n\nThe npm team enthusiastically welcomes contributions and project participation! There's a bunch of things you can do if you want to contribute! The [Contributor Guide](CONTRIBUTING.md) has all the information you need for everything from reporting bugs to contributing entire new features. Please don't hesitate to jump in if you'd like to, or even ask us questions if something isn't clear.\n\nAll participants and maintainers in this project are expected to follow [Code of Conduct](CODE_OF_CONDUCT.md), and just generally be excellent to each other.\n\nPlease refer to the [Changelog](CHANGELOG.md) for project history details, too.\n\nHappy hacking!\n\n### API\n\n#### <a name=\"parse\"></a> `> parse(txt, ?reviver, ?context=20)`\n\nWorks just like `JSON.parse`, but will include a bit more information when an\nerror happens.\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Install\n\n```bash\nnpm install semver\n````\n\n## Usage\n\nAs a node module:\n\n```js\nconst semver = require('semver')\n\nsemver.valid('1.2.3') // '1.2.3'\nsemver.valid('a.b.c') // null\nsemver.clean(' =v1.2.3 ') // '1.2.3'\nsemver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\nsemver.gt('1.2.3', '9.8.7') // false\nsemver.lt('1.2.3', '9.8.7') // true\nsemver.minVersion('>=1.0.0') // '1.0.0'\nsemver.valid(semver.coerce('v2')) // '2.0.0'\nsemver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'\n```\n\nYou can also just load the module for the function that you care about, if\nyou'd like to minimize your footprint.\n\n```js\n// load the whole API at once in a single object\nconst semver = require('semver')\n\n// or just load the bits you need\n// all of them listed here, just pick and choose what you want\n\n// classes\nconst SemVer = require('semver/classes/semver')\nconst Comparator = require('semver/classes/comparator')\nconst Range = require('semver/classes/range')\n\n// functions for working with versions\nconst semverParse = require('semver/functions/parse')\nconst semverValid = require('semver/functions/valid')\nconst semverClean = require('semver/functions/clean')\nconst semverInc = require('semver/functions/inc')\nconst semverDiff = require('semver/functions/diff')\nconst semverMajor = require('semver/functions/major')\nconst semverMinor = require('semver/functions/minor')\nconst semverPatch = require('semver/functions/patch')\nconst semverPrerelease = require('semver/functions/prerelease')\nconst semverCompare = require('semver/functions/compare')\nconst semverRcompare = require('semver/functions/rcompare')\nconst semverCompareLoose = require('semver/functions/compare-loose')\nconst semverCompareBuild = require('semver/functions/compare-build')\nconst semverSort = require('semver/functions/sort')\nconst semverRsort = require('semver/functions/rsort')\n\n// low-level comparators between versions\nconst semverGt = require('semver/functions/gt')\nconst semverLt = require('semver/functions/lt')\nconst semverEq = require('semver/functions/eq')\nconst semverNeq = require('semver/functions/neq')\nconst semverGte = require('semver/functions/gte')\nconst semverLte = require('semver/functions/lte')\nconst semverCmp = require('semver/functions/cmp')\nconst semverCoerce = require('semver/functions/coerce')\n\n// working with ranges\nconst semverSatisfies = require('semver/functions/satisfies')\nconst semverMaxSatisfying = require('semver/ranges/max-satisfying')\nconst semverMinSatisfying = require('semver/ranges/min-satisfying')\nconst semverToComparators = require('semver/ranges/to-comparators')\nconst semverMinVersion = require('semver/ranges/min-version')\nconst semverValidRange = require('semver/ranges/valid')\nconst semverOutside = require('semver/ranges/outside')\nconst semverGtr = require('semver/ranges/gtr')\nconst semverLtr = require('semver/ranges/ltr')\nconst semverIntersects = require('semver/ranges/intersects')\nconst simplifyRange = require('semver/ranges/simplify')\nconst rangeSubset = require('semver/ranges/subset')\n```\n\nAs a command-line utility:\n\n```\n$ semver -h\n\nA JavaScript implementation of the https://semver.org/ specification\nCopyright Isaac Z. Schlueter\n\nUsage: semver [options] <version> [<version> [...]]\nPrints valid versions sorted by SemVer precedence\n\nOptions:\n-r --range <range>\n Print versions that match the specified range.\n\n-i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n--preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n-l --loose\n Interpret versions and ranges loosely\n\n-p --include-prerelease\n Always include prerelease versions in range matching\n\n-c --coerce\n Coerce a string into SemVer if possible\n (does not imply --loose)\n\n--rtl\n Coerce version strings right to left\n\n--ltr\n Coerce version strings left to right (default)\n\nProgram exits successfully if any valid version satisfies\nall supplied ranges, and prints all satisfying versions.\n\nIf no satisfying versions are found, then exits failure.\n\nVersions are printed in ascending order, so supplying\nmultiple versions to the utility will just sort them.\n```\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<https://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\nNote that this behavior can be suppressed (treating all prerelease\nversions as if they were normal versions, for the purpose of range\nmatching) by setting the `includePrerelease` flag on the options\nobject to any\n[functions](https://github.com/npm/node-semver#functions) that do\nrange matching.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\nsemver.inc('1.2.3', 'prerelease', 'beta')\n// '1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```bash\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```bash\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any non-prerelease version satisfies, unless\n `includePrerelease` is specified, in which case any version at all\n satisfies)\n* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero element in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0-0`\n* `^0.2.3` := `>=0.2.3 <0.3.0-0`\n* `^0.0.3` := `>=0.0.3 <0.0.4-0`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0-0`\n* `^0.0.x` := `>=0.0.0 <0.1.0-0`\n* `^0.0` := `>=0.0.0 <0.1.0-0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0-0`\n* `^0.x` := `>=0.0.0 <1.0.0-0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `options` object argument. All\noptions in this object are `false` by default. The options supported\nare:\n\n- `loose` Be more forgiving about not-quite-valid semver strings.\n (Any resulting output will always be 100% strict compliant, of\n course.) For backwards compatibility reasons, if the `options`\n argument is a boolean value instead of an object, it is interpreted\n to be the `loose` param.\n- `includePrerelease` Set to suppress the [default\n behavior](https://github.com/npm/node-semver#prerelease-tags) of\n excluding prerelease tagged versions from ranges unless they are\n explicitly opted into.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n* `intersects(r1, r2, loose)`: Return true if the two supplied ranges\n or comparators intersect.\n* `parse(v)`: Attempt to parse a string as a semantic version, returning either\n a `SemVer` object or `null`.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions\n are equal. Sorts in ascending order if passed to `Array.sort()`.\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Comparators\n\n* `intersects(comparator)`: Return true if the comparators intersect\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minVersion(range)`: Return the lowest version that can possibly match\n the given range.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n* `intersects(range)`: Return true if any of the ranges comparators intersect\n* `simplifyRange(versions, range)`: Return a \"simplified\" range that\n matches the same items in `versions` list as the range specified. Note\n that it does *not* guarantee that it would match the same versions in all\n cases, only for the set of versions provided. This is useful when\n generating ranges by joining together multiple versions with `||`\n programmatically, to provide the user with something a bit more\n ergonomic. If the provided range is shorter in string-length than the\n generated range, then that is returned.\n* `subset(subRange, superRange)`: Return `true` if the `subRange` range is\n entirely contained by the `superRange` range.\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n\n### Coercion\n\n* `coerce(version, options)`: Coerces a string to semver if possible\n\nThis aims to provide a very forgiving translation of a non-semver string to\nsemver. It looks for the first digit in a string, and consumes all\nremaining characters which satisfy at least a partial semver (e.g., `1`,\n`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer\nversions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All\nsurrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes\n`3.4.0`). Only text which lacks digits will fail coercion (`version one`\nis not valid). The maximum length for any semver component considered for\ncoercion is 16 characters; longer components will be ignored\n(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any\nsemver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value\ncomponents are invalid (`9999999999999999.4.7.4` is likely invalid).\n\nIf the `options.rtl` flag is set, then `coerce` will return the right-most\ncoercible tuple that does not share an ending index with a longer coercible\ntuple. For example, `1.2.3.4` will return `2.3.4` in rtl mode, not\n`4.0.0`. `1.2.3/4` will return `4.0.0`, because the `4` is not a part of\nany other overlapping SemVer tuple.\n\n### Clean\n\n* `clean(version)`: Clean a string to be a valid semver if possible\n\nThis will return a cleaned and trimmed semver version. If the provided\nversion is not valid a null will be returned. This does not work for\nranges.\n\nex.\n* `s.clean(' = v 2.1.5foo')`: `null`\n* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'`\n* `s.clean(' = v 2.1.5-foo')`: `null`\n* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'`\n* `s.clean('=v2.1.5')`: `'2.1.5'`\n* `s.clean(' =v2.1.5')`: `2.1.5`\n* `s.clean(' 2.1.5 ')`: `'2.1.5'`\n* `s.clean('~1.0.0')`: `null`\n\n## Exported Modules\n\n<!--\nTODO: Make sure that all of these items are documented (classes aren't,\neg), and then pull the module name into the documentation for that specific\nthing.\n-->\n\nYou may pull in just the part of this semver utility that you need, if you\nare sensitive to packing and tree-shaking concerns. The main\n`require('semver')` export uses getter functions to lazily load the parts\nof the API that are used.\n\nThe following modules are available:\n\n* `require('semver')`\n* `require('semver/classes')`\n* `require('semver/classes/comparator')`\n* `require('semver/classes/range')`\n* `require('semver/classes/semver')`\n* `require('semver/functions/clean')`\n* `require('semver/functions/cmp')`\n* `require('semver/functions/coerce')`\n* `require('semver/functions/compare')`\n* `require('semver/functions/compare-build')`\n* `require('semver/functions/compare-loose')`\n* `require('semver/functions/diff')`\n* `require('semver/functions/eq')`\n* `require('semver/functions/gt')`\n* `require('semver/functions/gte')`\n* `require('semver/functions/inc')`\n* `require('semver/functions/lt')`\n* `require('semver/functions/lte')`\n* `require('semver/functions/major')`\n* `require('semver/functions/minor')`\n* `require('semver/functions/neq')`\n* `require('semver/functions/parse')`\n* `require('semver/functions/patch')`\n* `require('semver/functions/prerelease')`\n* `require('semver/functions/rcompare')`\n* `require('semver/functions/rsort')`\n* `require('semver/functions/satisfies')`\n* `require('semver/functions/sort')`\n* `require('semver/functions/valid')`\n* `require('semver/ranges/gtr')`\n* `require('semver/ranges/intersects')`\n* `require('semver/ranges/ltr')`\n* `require('semver/ranges/max-satisfying')`\n* `require('semver/ranges/min-satisfying')`\n* `require('semver/ranges/min-version')`\n* `require('semver/ranges/outside')`\n* `require('semver/ranges/to-comparators')`\n* `require('semver/ranges/valid')`\n# Ozone - Javascript Class Framework\n\n[](https://travis-ci.org/inf3rno/o3)\n\nThe Ozone class framework contains enhanced class support to ease the development of object-oriented javascript applications in an ES5 environment.\nAnother alternative to get a better class support to use ES6 classes and compilers like Babel, Traceur or TypeScript until native ES6 support arrives.\n\n## Documentation\n\n### Installation\n\n```bash\nnpm install o3\n```\n\n```bash\nbower install o3\n```\n\n#### Environment compatibility\n\nThe framework succeeded the tests on\n\n - node v4.2 and v5.x\n - chrome 51.0\n - firefox 47.0 and 48.0\n - internet explorer 11.0\n - phantomjs 2.1\n \nby the usage of npm scripts under win7 x64.\n\nI wasn't able to test the framework by Opera since the Karma launcher is buggy, so I decided not to support Opera.\n\nI used [Yadda](https://github.com/acuminous/yadda) to write BDD tests.\nI used [Karma](https://github.com/karma-runner/karma) with [Browserify](https://github.com/substack/node-browserify) to test the framework in browsers.\n\nOn pre-ES5 environments there will be bugs in the Class module due to pre-ES5 enumeration and the lack of some ES5 methods, so pre-ES5 environments are not supported.\n\n#### Requirements\n\nAn ES5 capable environment is required with\n\n- `Object.create`\n- ES5 compatible property enumeration: `Object.defineProperty`, `Object.getOwnPropertyDescriptor`, `Object.prototype.hasOwnProperty`, etc.\n- `Array.prototype.forEach`\n\n#### Usage\n\nIn this documentation I used the framework as follows:\n\n```js\nvar o3 = require(\"o3\"),\n Class = o3.Class;\n```\n\n### Inheritance\n\n#### Inheriting from native classes (from the Error class in these examples)\n\nYou can extend native classes by calling the Class() function.\n\n```js\nvar UserError = Class(Error, {\n prototype: {\n message: \"blah\",\n constructor: function UserError() {\n Error.captureStackTrace(this, this.constructor);\n }\n }\n}); \n```\n\nAn alternative to call Class.extend() with the Ancestor as the context. The Class() function uses this in the background.\n\n```js\nvar UserError = Class.extend.call(Error, {\n prototype: {\n message: \"blah\",\n constructor: function UserError() {\n Error.captureStackTrace(this, this.constructor);\n }\n }\n});\n```\n\n#### Inheriting from custom classes\n\nYou can use Class.extend() by any other class, not just by native classes.\n\n```js\nvar Ancestor = Class(Object, {\n prototype: {\n a: 1,\n b: 2\n }\n});\n\nvar Descendant = Class.extend.call(Ancestor, {\n prototype: {\n c: 3\n }\n});\n```\n\nOr you can simply add it as a static method, so you don't have to pass context any time you want to use it. The only drawback, that this static method will be inherited as well.\n\n```js\nvar Ancestor = Class(Object, {\n extend: Class.extend,\n prototype: {\n a: 1,\n b: 2\n }\n});\n\nvar Descendant = Ancestor.extend({\n prototype: {\n c: 3\n }\n});\n```\n\n#### Inheriting from the Class class\n\nYou can inherit the extend() method and other utility methods from the Class class. Probably this is the simplest solution if you need the Class API and you don't need to inherit from special native classes like Error. \n\n```js\nvar Ancestor = Class.extend({\n prototype: {\n a: 1,\n b: 2\n }\n});\n\nvar Descendant = Ancestor.extend({\n prototype: {\n c: 3\n }\n});\n```\n\n#### Inheritance with clone and merge\n\nThe static extend() method uses the clone() and merge() utility methods to inherit from the ancestor and add properties from the config.\n\n```js\nvar MyClass = Class.clone.call(Object, function MyClass(){\n // ...\n});\nClass.merge.call(MyClass, {\n prototype: {\n x: 1, \n y: 2\n }\n});\n```\n\nOr with utility methods.\n\n```js\nvar MyClass = Class.clone(function MyClass() {\n // ...\n}).merge({\n prototype: {\n x: 1,\n y: 2\n }\n});\n```\n\n#### Inheritance with clone and absorb\n\nYou can fill in missing properties with the usage of absorb.\n\n```js\nvar MyClass = Class(SomeAncestor, {...});\nClass.absorb.call(MyClass, Class);\nMyClass.merge({...});\n```\n\nFor example if you don't have Class methods and your class already has an ancestor, then you can use absorb() to add Class methods.\n\n#### Abstract classes\n\nUsing abstract classes with instantiation verification won't be implemented in this lib, however we provide an `abstractMethod`, which you can put to not implemented parts of your abstract class.\n\n```js\nvar AbstractA = Class({\n prototype: {\n doA: function (){\n // ...\n var b = this.getB();\n // ...\n // do something with b\n // ...\n },\n getB: abstractMethod\n }\n});\n\nvar AB1 = Class(AbstractA, {\n prototype: {\n getB: function (){\n return new B1();\n }\n }\n});\n\nvar ab1 = new AB1();\n\n```\n\nI strongly support the composition over inheritance principle and I think you should use dependency injection instead of abstract classes.\n\n```js\nvar A = Class({\n prototype: {\n init: function (b){\n this.b = b;\n },\n doA: function (){\n // ...\n // do something with this.b\n // ...\n }\n }\n});\n\nvar b = new B1();\nvar ab1 = new A(b);\n```\n\n### Constructors\n\n#### Using a custom constructor\n\nYou can pass your custom constructor as a config option by creating the class.\n\n```js\nvar MyClass = Class(Object, {\n prototype: {\n constructor: function () {\n // ...\n }\n }\n});\n```\n\n#### Using a custom factory to create the constructor\n\nOr you can pass a static factory method to create your custom constructor.\n\n```js\nvar MyClass = Class(Object, {\n factory: function () {\n return function () {\n // ...\n }\n }\n});\n```\n\n#### Using an inherited factory to create the constructor\n\nBy inheritance the constructors of the descendant classes will be automatically created as well.\n\n```js\nvar Ancestor = Class(Object, {\n factory: function () {\n return function () {\n // ...\n }\n }\n});\nvar Descendant = Class(Ancestor, {});\n```\n\n#### Using the default factory to create the constructor\n\nYou don't need to pass anything if you need a noop function as constructor. The Class.factory() will create a noop constructor by default.\n\n```js\nvar MyClass = Class(Object, {});\n```\n\nIn fact you don't need to pass any arguments to the Class function if you need an empty class inheriting from the Object native class.\n\n```js\nvar MyClass = Class();\n```\n\nThe default factory calls the build() and init() methods if they are given.\n\n```js\nvar MyClass = Class({\n prototype: {\n build: function (options) {\n console.log(\"build\", options);\n },\n init: function (options) {\n console.log(\"init\", options);\n }\n }\n});\n\nvar my = new MyClass({a: 1, b: 2});\n // build {a: 1, b: 2}\n // init {a: 1, b: 2}\n\nvar my2 = my.clone({c: 3});\n // build {c: 3}\n\nvar MyClass2 = MyClass.extend({}, [{d: 4}]);\n // build {d: 4}\n\n```\n\n### Instantiation\n\n#### Creating new instance with the new operator\n\nOfc. you can create a new instance in the javascript way.\n\n```js\nvar MyClass = Class();\nvar my = new MyClass();\n```\n\n#### Creating a new instance with the static newInstance method\n\nIf you want to pass an array of arguments then you can do it the following way.\n\n```js\nvar MyClass = Class.extend({\n prototype: {\n constructor: function () {\n for (var i in arguments)\n console.log(arguments[i]);\n }\n }\n});\n\nvar my = MyClass.newInstance.apply(MyClass, [\"a\", \"b\", \"c\"]);\n // a\n // b\n // c\n```\n\n#### Creating new instance with clone\n\nYou can create a new instance by cloning the prototype of the class.\n\n```js\nvar MyClass = Class();\nvar my = Class.prototype.clone.call(MyClass.prototype);\n```\n\nOr you can inherit the utility methods to make this easier.\n\n```js\nvar MyClass = Class.extend();\nvar my = MyClass.prototype.clone();\n```\n\nJust be aware that by default cloning calls only the `build()` method, so the `init()` method won't be called by the new instance.\n\n#### Cloning instances\n\nYou can clone an existing instance with the clone method.\n\n```js\nvar MyClass = Class.extend();\nvar my = MyClass.prototype.clone();\nvar my2 = my.clone();\n```\n\nBe aware that this is prototypal inheritance with Object.create(), so the inherited properties won't be enumerable.\n\nThe clone() method calls the build() method on the new instance if it is given.\n\n#### Using clone in the constructor\n\nYou can use the same behavior both by cloning and by creating a new instance using the constructor\n\n```js\nvar MyClass = Class.extend({\n lastIndex: 0,\n prototype: {\n index: undefined,\n constructor: function MyClass() {\n return MyClass.prototype.clone();\n },\n clone: function () {\n var instance = Class.prototype.clone.call(this);\n instance.index = ++MyClass.lastIndex;\n return instance;\n }\n }\n});\n\nvar my1 = new MyClass();\nvar my2 = MyClass.prototype.clone();\nvar my3 = my1.clone();\nvar my4 = my2.clone();\n```\n\nBe aware that this way the constructor will drop the instance created with the `new` operator.\n\nBe aware that the clone() method is used by inheritance, so creating the prototype of a descendant class will use the clone() method as well.\n\n```js\nvar Descendant = MyClass.clone(function Descendant() {\n return Descendant.prototype.clone();\n});\n\nvar my5 = Descendant.prototype;\nvar my6 = new Descendant();\n// ...\n```\n\n#### Using absorb(), merge() or inheritance to set the defaults values on properties\n\nYou can use absorb() to set default values after configuration.\n\n```js\nvar MyClass = Class.extend({\n prototype: {\n constructor: function (config) {\n var theDefaults = {\n // ...\n };\n this.merge(config);\n this.absorb(theDefaults);\n }\n }\n});\n```\n\nYou can use merge() to set default values before configuration.\n\n```js\nvar MyClass = Class.extend({\n prototype: {\n constructor: function (config) {\n var theDefaults = {\n // ...\n };\n this.merge(theDefaults);\n this.merge(config);\n }\n }\n});\n```\n\nYou can use inheritance to set default values on class level.\n\n```js\nvar MyClass = Class.extend({\n prototype: {\n aProperty: defaultValue,\n // ...\n constructor: function (config) {\n this.merge(config);\n }\n }\n});\n```\n\n## License\n\nMIT - 2015 Jánszky László Lajos\n# cacheable-request\n\n> Wrap native HTTP requests with RFC compliant cache support\n\n[](https://travis-ci.org/lukechilds/cacheable-request)\n[](https://coveralls.io/github/lukechilds/cacheable-request?branch=master)\n[](https://www.npmjs.com/package/cacheable-request)\n[](https://www.npmjs.com/package/cacheable-request)\n\n[RFC 7234](http://httpwg.org/specs/rfc7234.html) compliant HTTP caching for native Node.js HTTP/HTTPS requests. Caching works out of the box in memory or is easily pluggable with a wide range of storage adapters.\n\n**Note:** This is a low level wrapper around the core HTTP modules, it's not a high level request library.\n\n## Features\n\n- Only stores cacheable responses as defined by RFC 7234\n- Fresh cache entries are served directly from cache\n- Stale cache entries are revalidated with `If-None-Match`/`If-Modified-Since` headers\n- 304 responses from revalidation requests use cached body\n- Updates `Age` header on cached responses\n- Can completely bypass cache on a per request basis\n- In memory cache by default\n- Official support for Redis, MongoDB, SQLite, PostgreSQL and MySQL storage adapters\n- Easily plug in your own or third-party storage adapters\n- If DB connection fails, cache is automatically bypassed ([disabled by default](#optsautomaticfailover))\n- Adds cache support to any existing HTTP code with minimal changes\n- Uses [http-cache-semantics](https://github.com/pornel/http-cache-semantics) internally for HTTP RFC 7234 compliance\n\n## Install\n\n```shell\nnpm install cacheable-request\n```\n\n## Usage\n\n```js\nconst http = require('http');\nconst CacheableRequest = require('cacheable-request');\n\n// Then instead of\nconst req = http.request('http://example.com', cb);\nreq.end();\n\n// You can do\nconst cacheableRequest = new CacheableRequest(http.request);\nconst cacheReq = cacheableRequest('http://example.com', cb);\ncacheReq.on('request', req => req.end());\n// Future requests to 'example.com' will be returned from cache if still valid\n\n// You pass in any other http.request API compatible method to be wrapped with cache support:\nconst cacheableRequest = new CacheableRequest(https.request);\nconst cacheableRequest = new CacheableRequest(electron.net);\n```\n\n## Storage Adapters\n\n`cacheable-request` uses [Keyv](https://github.com/lukechilds/keyv) to support a wide range of storage adapters.\n\nFor example, to use Redis as a cache backend, you just need to install the official Redis Keyv storage adapter:\n\n```\nnpm install @keyv/redis\n```\n\nAnd then you can pass `CacheableRequest` your connection string:\n\n```js\nconst cacheableRequest = new CacheableRequest(http.request, 'redis://user:pass@localhost:6379');\n```\n\n[View all official Keyv storage adapters.](https://github.com/lukechilds/keyv#official-storage-adapters)\n\nKeyv also supports anything that follows the Map API so it's easy to write your own storage adapter or use a third-party solution.\n\ne.g The following are all valid storage adapters\n\n```js\nconst storageAdapter = new Map();\n// or\nconst storageAdapter = require('./my-storage-adapter');\n// or\nconst QuickLRU = require('quick-lru');\nconst storageAdapter = new QuickLRU({ maxSize: 1000 });\n\nconst cacheableRequest = new CacheableRequest(http.request, storageAdapter);\n```\n\nView the [Keyv docs](https://github.com/lukechilds/keyv) for more information on how to use storage adapters.\n\n## API\n\n### new cacheableRequest(request, [storageAdapter])\n\nReturns the provided request function wrapped with cache support.\n\n#### request\n\nType: `function`\n\nRequest function to wrap with cache support. Should be [`http.request`](https://nodejs.org/api/http.html#http_http_request_options_callback) or a similar API compatible request function.\n\n#### storageAdapter\n\nType: `Keyv storage adapter`<br>\nDefault: `new Map()`\n\nA [Keyv](https://github.com/lukechilds/keyv) storage adapter instance, or connection string if using with an official Keyv storage adapter.\n\n### Instance\n\n#### cacheableRequest(opts, [cb])\n\nReturns an event emitter.\n\n##### opts\n\nType: `object`, `string`\n\n- Any of the default request functions options.\n- Any [`http-cache-semantics`](https://github.com/kornelski/http-cache-semantics#constructor-options) options.\n- Any of the following:\n\n###### opts.cache\n\nType: `boolean`<br>\nDefault: `true`\n\nIf the cache should be used. Setting this to false will completely bypass the cache for the current request.\n\n###### opts.strictTtl\n\nType: `boolean`<br>\nDefault: `false`\n\nIf set to `true` once a cached resource has expired it is deleted and will have to be re-requested.\n\nIf set to `false` (default), after a cached resource's TTL expires it is kept in the cache and will be revalidated on the next request with `If-None-Match`/`If-Modified-Since` headers.\n\n###### opts.maxTtl\n\nType: `number`<br>\nDefault: `undefined`\n\nLimits TTL. The `number` represents milliseconds.\n\n###### opts.automaticFailover\n\nType: `boolean`<br>\nDefault: `false`\n\nWhen set to `true`, if the DB connection fails we will automatically fallback to a network request. DB errors will still be emitted to notify you of the problem even though the request callback may succeed.\n\n###### opts.forceRefresh\n\nType: `boolean`<br>\nDefault: `false`\n\nForces refreshing the cache. If the response could be retrieved from the cache, it will perform a new request and override the cache instead.\n\n##### cb\n\nType: `function`\n\nThe callback function which will receive the response as an argument.\n\nThe response can be either a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage) or a [responselike object](https://github.com/lukechilds/responselike). The response will also have a `fromCache` property set with a boolean value.\n\n##### .on('request', request)\n\n`request` event to get the request object of the request.\n\n**Note:** This event will only fire if an HTTP request is actually made, not when a response is retrieved from cache. However, you should always handle the `request` event to end the request and handle any potential request errors.\n\n##### .on('response', response)\n\n`response` event to get the response object from the HTTP request or cache.\n\n##### .on('error', error)\n\n`error` event emitted in case of an error with the cache.\n\nErrors emitted here will be an instance of `CacheableRequest.RequestError` or `CacheableRequest.CacheError`. You will only ever receive a `RequestError` if the request function throws (normally caused by invalid user input). Normal request errors should be handled inside the `request` event.\n\nTo properly handle all error scenarios you should use the following pattern:\n\n```js\ncacheableRequest('example.com', cb)\n .on('error', err => {\n if (err instanceof CacheableRequest.CacheError) {\n handleCacheError(err); // Cache error\n } else if (err instanceof CacheableRequest.RequestError) {\n handleRequestError(err); // Request function thrown\n }\n })\n .on('request', req => {\n req.on('error', handleRequestError); // Request error emitted\n req.end();\n });\n```\n\n**Note:** Database connection errors are emitted here, however `cacheable-request` will attempt to re-request the resource and bypass the cache on a connection error. Therefore a database connection error doesn't necessarily mean the request won't be fulfilled.\n\n## License\n\nMIT © Luke Childs\n# has\n\n> Object.prototype.hasOwnProperty.call shortcut\n\n## Installation\n\n```sh\nnpm install --save has\n```\n\n## Usage\n\n```js\nvar has = require('has');\n\nhas({}, 'hasOwnProperty'); // false\nhas(Object.prototype, 'hasOwnProperty'); // true\n```\n# fs-constants\n\nSmall module that allows you to get the fs constants across\nNode and the browser. \n\n```\nnpm install fs-constants\n```\n\nPreviously you would use `require('constants')` for this in node but that has been\ndeprecated and changed to `require('fs').constants` which does not browserify.\n\nThis module uses `require('constants')` in the browser and `require('fs').constants` in node to work around this\n\n## Usage\n\n``` js\nvar constants = require('fs-constants')\n\nconsole.log('constants:', constants)\n```\n\n## License\n\nMIT\n# axios // adapters\n\nThe modules under `adapters/` are modules that handle dispatching a request and settling a returned `Promise` once a response is received.\n\n## Example\n\n```js\nvar settle = require('./../core/settle');\n\nmodule.exports = function myAdapter(config) {\n // At this point:\n // - config has been merged with defaults\n // - request transformers have already run\n // - request interceptors have already run\n \n // Make the request using config provided\n // Upon response settle the Promise\n\n return new Promise(function(resolve, reject) {\n \n var response = {\n data: responseData,\n status: request.status,\n statusText: request.statusText,\n headers: responseHeaders,\n config: config,\n request: request\n };\n\n settle(resolve, reject, response);\n\n // From here:\n // - response transformers will run\n // - response interceptors will run\n });\n}\n```\n# MD5\n\n[](http://travis-ci.org/pvorb/node-md5) [](http://npm-stat.com/charts.html?package=md5)\n\na JavaScript function for hashing messages with MD5.\n\nnode-md5 is being sponsored by the following tool; please help to support us by taking a look and signing up to a free trial \n<a href=\"https://tracking.gitads.io/?repo=node-md5\"><img src=\"https://images.gitads.io/node-md5\" alt=\"GitAds\"/></a>\n\n## Installation\n\nYou can use this package on the server side as well as the client side.\n\n### [Node.js](http://nodejs.org/):\n\n~~~\nnpm install md5\n~~~\n\n## API\n\n~~~ javascript\nmd5(message)\n~~~\n\n * `message` -- `String`, `Buffer`, `Array` or `Uint8Array`\n * returns `String`\n\n## Usage\n\n~~~ javascript\nvar md5 = require('md5');\n\nconsole.log(md5('message'));\n~~~\n\nThis will print the following\n\n~~~\n78e731027d8fd50ed642340b7c9a63b3\n~~~\n\nIt supports buffers, too\n\n~~~ javascript\nvar fs = require('fs');\nvar md5 = require('md5');\n\nfs.readFile('example.txt', function(err, buf) {\n console.log(md5(buf));\n});\n~~~\n\n## Versions\n\nBefore version 2.0.0 there were two packages called md5 on npm, one lowercase,\none uppercase (the one you're looking at). As of version 2.0.0, all new versions\nof this module will go to lowercase [md5](https://www.npmjs.com/package/md5) on\nnpm. To use the correct version, users of this module will have to change their\ncode from `require('MD5')` to `require('md5')` if they want to use versions >=\n2.0.0.\n\n## Bugs and Issues\n\nIf you encounter any bugs or issues, feel free to open an issue at\n[github](https://github.com/pvorb/node-md5/issues).\n\n## Credits\n\nThis package is based on the work of Jeff Mott, who did a pure JS implementation\nof the MD5 algorithm that was published by Ronald L. Rivest in 1991. I needed a\nnpm package of the algorithm, so I used Jeff’s implementation for this package.\nThe original implementation can be found in the\n[CryptoJS](http://code.google.com/p/crypto-js/) project.\n\n## License\n\n~~~\nCopyright © 2011-2015, Paul Vorbach.\nCopyright © 2009, Jeff Mott.\n\nAll rights reserved.\n\nRedistribution and use in source and binary forms, with or without modification,\nare permitted provided that the following conditions are met:\n\n* Redistributions of source code must retain the above copyright notice, this\n list of conditions and the following disclaimer.\n* Redistributions in binary form must reproduce the above copyright notice, this\n list of conditions and the following disclaimer in the documentation and/or\n other materials provided with the distribution.\n* Neither the name Crypto-JS nor the names of its contributors may be used to\n endorse or promote products derived from this software without specific prior\n written permission.\n\nTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\nANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\nWARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\nDISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR\nANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\nLOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\nANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\nSOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n~~~\ntcp-port-used\n=============\n\nA simple Node.js module to check if a TCP port is currently in use. It returns a\ndeferred promise from the q library.\n\n## Installation\n\n npm install tcp-port-used\n\n## Examples\nTo check a port's state:\n\n var tcpPortUsed = require('tcp-port-used');\n\n tcpPortUsed.check(44201, '127.0.0.1')\n .then(function(inUse) {\n console.log('Port 44201 usage: '+inUse);\n }, function(err) {\n console.error('Error on check:', err.message);\n });\n\nTo wait until a port on localhost is available:\n\n tcpPortUsed.waitUntilFree(44203, 500, 4000)\n .then(function() {\n console.log('Port 44203 is now free.');\n }, function(err) {\n console.log('Error:', err.message);\n });\n\nTo wait until a port on a host is available:\n\n tcpPortUsed.waitUntilFreeOnHost(44203, 'some.host.com', 500, 4000)\n .then(function() {\n console.log('Port 44203 on some.host.com is now free.');\n }, function(err) {\n console.log('Error:', err.message);\n });\n\nTo wait until a port on localhost is accepting connections:\n\n tcpPortUsed.waitUntilUsed(44204, 500, 4000)\n .then(function() {\n console.log('Port 44204 is now in use.');\n }, function(err) {\n console.log('Error:', err.message);\n });\n\nTo wait until a port on a host is accepting connections:\n\n tcpPortUsed.waitUntilUsedOnHost(44204, 'some.host.com', 500, 4000)\n .then(function() {\n console.log('Port 44204 on some.host.com is now in use.');\n }, function(err) {\n console.log('Error:', err.message);\n });\n\nTo wait until a port on a host is in specific state:\n\n var inUse = true; // wait until the port is in use\n tcpPortUsed.waitForStatus(44204, 'some.host.com', inUse, 500, 4000)\n .then(function() {\n console.log('Port 44204 on some.host.com is now in use.');\n }, function(err) {\n console.log('Error:', err.message);\n });\n\n## API\n\n### check(port [, host])\nChecks if a TCP port is in use by attempting to connect to the port on host.\nIf no host is specified, the module uses '127.0.0.1' (localhost). When the\npromise is resolved, there is a parameter `inUse`, when true means the port is\nin use and false means the port is free.\n\n**Parameters:**\n\n* **Number|Object** *port* The port you are curious to see if available. If an\n object, must contain all the parameters as properties.\n* **String** *host* The host name or IP address of the host. Default, if not defined: '127.0.0.1'\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n### waitUntilFree(port [, retryTimeMs] [, timeOutMs])\nReturns a deferred promise and fulfills it only when the localhost socket is\nfree. Will retry on an interval specified in retryTimeMs until the timeout. If\nnot defined the retryTime is 200 ms and the timeout is 2000 ms.\n\n**Parameters:**\n\n* **Number|Object** *port* a valid TCP port number. If an object must contain\n all the parameters as properties.\n* **Number** *[retryTimeMs]* the retry interval in milliseconds - defaultis is 100ms.\n* **Number** *[timeOutMs]* the amount of time to wait until port is free. Default 300ms.\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n### waitUntilFreeOnHost(port [, host] [, retryTimeMs] [, timeOutMs])\nReturns a deferred promise and fulfills it only when the localhost socket is\nfree. Will retry on an interval specified in retryTimeMs until the timeout. If\nnot defined the retryTime is 200 ms and the timeout is 2000 ms. If the host is\nnot defined, the modules uses the default '127.0.0.1'.\n\n**Parameters:**\n\n* **Number|Object** *port* a valid TCP port number. If an object, must contain\n all the parameters as properties.\n* **String** *host* The host name or IP address of the host. Default, if not defined: '127.0.0.1'\n* **Number** *[retryTimeMs]* the retry interval in milliseconds - defaultis is 100ms.\n* **Number** *[timeOutMs]* the amount of time to wait until port is free. Default 300ms.\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n### waitUntilUsed(port [, retryTimeMs] [, timeOutMs])\nReturns a deferred promise and fulfills it only when the socket is accepting\nconnections. Will retry on an interval specified in retryTimeMs until the\ntimeout. If the host is not defined the retryTime is 200 ms and the timeout is\n2000 ms.\n\n**Parameters:**\n\n* **Number|Object** *port* a valid TCP port number. If an object, must contain\n all the parameters as properties.\n* **Number** *[retryTimeMs]* the retry interval in milliseconds - defaultis is 100ms.\n* **Number** *[timeOutMs]* the amount of time to wait until port is free. Default 300ms.\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n### waitUntilUsedOnHost(port [, host] [, retryTimeMs] [, timeOutMs])\nReturns a deferred promise and fulfills it only when the socket is accepting\nconnections. Will retry on an interval specified in retryTimeMs until the\ntimeout. If not defined the retryTime is 200 ms and the timeout is 2000 ms.\nIf the host is not defined the module uses the default '127.0.0.1'.\n\n**Parameters:**\n\n* **Number|Object** *port* a valid TCP port number. If an object, must contain\n all the parameters as properties.\n* **String** *host* The host name or IP address of the host. Default, if not defined: '127.0.0.1'\n* **Number** *[retryTimeMs]* the retry interval in milliseconds - defaultis is 100ms.\n* **Number** *[timeOutMs]* the amount of time to wait until port is free. Default 300ms.\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n### waitForStatus(port, host, status [, retryTimeMs] [, timeOutMs])\nWaits until the port on host matches the boolean status in terms of use. If the\nstatus is true, the promise defers until the port is in use. If the status is\nfalse the promise defers until the port is free. If the host is undefined or\nnull, the module uses the default '127.0.0.1'. Also, if not defined the\nretryTime is 200 ms and the timeout is 2000 ms.\n\n**Parameters:**\n\n* **Number** *port* a valid TCP port number. If an object, must contain all the\n parameters as properties.\n* **String** *host* The host name or IP address of the host. Default, if not defined: '127.0.0.1'\n* **Boolean** *status* A boolean describing the condition to wait for in terms of \"in use.\" True indicates wait until the port is in use. False indicates wait until the port is free.\n* **Number** *[retryTimeMs]* the retry interval in milliseconds - defaultis is 100ms.\n* **Number** *[timeOutMs]* the amount of time to wait until port is free. Default 300ms.\n\n**Returns:**\n\n**Object** A deferred promise from the q module.\n\n## License\n\nThe MIT License (MIT)\n\nCopyright (c) 2013 jut-io\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\nFOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\nCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\nIN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\nCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# ncp - Asynchronous recursive file & directory copying\n\n[](http://travis-ci.org/AvianFlu/ncp)\n\nThink `cp -r`, but pure node, and asynchronous. `ncp` can be used both as a CLI tool and programmatically.\n\n## Command Line usage\n\nUsage is simple: `ncp [source] [dest] [--limit=concurrency limit]\n[--filter=filter] --stopOnErr`\n\nThe 'filter' is a Regular Expression - matched files will be copied.\n\nThe 'concurrency limit' is an integer that represents how many pending file system requests `ncp` has at a time.\n\n'stoponerr' is a boolean flag that will tell `ncp` to stop immediately if any\nerrors arise, rather than attempting to continue while logging errors. The default behavior is to complete as many copies as possible, logging errors along the way.\n\nIf there are no errors, `ncp` will output `done.` when complete. If there are errors, the error messages will be logged to `stdout` and to `./ncp-debug.log`, and the copy operation will attempt to continue.\n\n## Programmatic usage\n\nProgrammatic usage of `ncp` is just as simple. The only argument to the completion callback is a possible error. \n\n```javascript\nvar ncp = require('ncp').ncp;\n\nncp.limit = 16;\n\nncp(source, destination, function (err) {\n if (err) {\n return console.error(err);\n }\n console.log('done!');\n});\n```\n\nYou can also call ncp like `ncp(source, destination, options, callback)`. \n`options` should be a dictionary. Currently, such options are available:\n\n * `options.filter` - a `RegExp` instance, against which each file name is\n tested to determine whether to copy it or not, or a function taking single\n parameter: copied file name, returning `true` or `false`, determining\n whether to copy file or not.\n\n * `options.transform` - a function: `function (read, write) { read.pipe(write) }`\n used to apply streaming transforms while copying.\n\n * `options.clobber` - boolean=true. if set to false, `ncp` will not overwrite \n destination files that already exist.\n\n * `options.dereference` - boolean=false. If set to true, `ncp` will follow symbolic\n links. For example, a symlink in the source tree pointing to a regular file\n will become a regular file in the destination tree. Broken symlinks will result in\n errors.\n\n * `options.stopOnErr` - boolean=false. If set to true, `ncp` will behave like `cp -r`,\n and stop on the first error it encounters. By default, `ncp` continues copying, logging all\n errors and returning an array.\n\n * `options.errs` - stream. If `options.stopOnErr` is `false`, a stream can be provided, and errors will be written to this stream.\n\nPlease open an issue if any bugs arise. As always, I accept (working) pull requests, and refunds are available at `/dev/null`.\n# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/safe-buffer\n[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg\n[npm-url]: https://npmjs.org/package/safe-buffer\n[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg\n[downloads-url]: https://npmjs.org/package/safe-buffer\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n#### Safer Node.js Buffer API\n\n**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,\n`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**\n\n**Uses the built-in implementation when available.**\n\n## install\n\n```\nnpm install safe-buffer\n```\n\n## usage\n\nThe goal of this package is to provide a safe replacement for the node.js `Buffer`.\n\nIt's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to\nthe top of your node.js modules:\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n\n// Existing buffer code will continue to work without issues:\n\nnew Buffer('hey', 'utf8')\nnew Buffer([1, 2, 3], 'utf8')\nnew Buffer(obj)\nnew Buffer(16) // create an uninitialized buffer (potentially unsafe)\n\n// But you can use these new explicit APIs to make clear what you want:\n\nBuffer.from('hey', 'utf8') // convert from many types to a Buffer\nBuffer.alloc(16) // create a zero-filled buffer (safe)\nBuffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)\n```\n\n## api\n\n### Class Method: Buffer.from(array)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `array` {Array}\n\nAllocates a new `Buffer` using an `array` of octets.\n\n```js\nconst buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);\n // creates a new Buffer containing ASCII bytes\n // ['b','u','f','f','e','r']\n```\n\nA `TypeError` will be thrown if `array` is not an `Array`.\n\n### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or\n a `new ArrayBuffer()`\n* `byteOffset` {Number} Default: `0`\n* `length` {Number} Default: `arrayBuffer.length - byteOffset`\n\nWhen passed a reference to the `.buffer` property of a `TypedArray` instance,\nthe newly created `Buffer` will share the same allocated memory as the\nTypedArray.\n\n```js\nconst arr = new Uint16Array(2);\narr[0] = 5000;\narr[1] = 4000;\n\nconst buf = Buffer.from(arr.buffer); // shares the memory with arr;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 a0 0f>\n\n// changing the TypedArray changes the Buffer also\narr[1] = 6000;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 70 17>\n```\n\nThe optional `byteOffset` and `length` arguments specify a memory range within\nthe `arrayBuffer` that will be shared by the `Buffer`.\n\n```js\nconst ab = new ArrayBuffer(10);\nconst buf = Buffer.from(ab, 0, 2);\nconsole.log(buf.length);\n // Prints: 2\n```\n\nA `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.\n\n### Class Method: Buffer.from(buffer)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `buffer` {Buffer}\n\nCopies the passed `buffer` data onto a new `Buffer` instance.\n\n```js\nconst buf1 = Buffer.from('buffer');\nconst buf2 = Buffer.from(buf1);\n\nbuf1[0] = 0x61;\nconsole.log(buf1.toString());\n // 'auffer'\nconsole.log(buf2.toString());\n // 'buffer' (copy is not changed)\n```\n\nA `TypeError` will be thrown if `buffer` is not a `Buffer`.\n\n### Class Method: Buffer.from(str[, encoding])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `str` {String} String to encode.\n* `encoding` {String} Encoding to use, Default: `'utf8'`\n\nCreates a new `Buffer` containing the given JavaScript string `str`. If\nprovided, the `encoding` parameter identifies the character encoding.\nIf not provided, `encoding` defaults to `'utf8'`.\n\n```js\nconst buf1 = Buffer.from('this is a tést');\nconsole.log(buf1.toString());\n // prints: this is a tést\nconsole.log(buf1.toString('ascii'));\n // prints: this is a tC)st\n\nconst buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');\nconsole.log(buf2.toString());\n // prints: this is a tést\n```\n\nA `TypeError` will be thrown if `str` is not a string.\n\n### Class Method: Buffer.alloc(size[, fill[, encoding]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n* `fill` {Value} Default: `undefined`\n* `encoding` {String} Default: `utf8`\n\nAllocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the\n`Buffer` will be *zero-filled*.\n\n```js\nconst buf = Buffer.alloc(5);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nThe `size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nIf `fill` is specified, the allocated `Buffer` will be initialized by calling\n`buf.fill(fill)`. See [`buf.fill()`][] for more information.\n\n```js\nconst buf = Buffer.alloc(5, 'a');\nconsole.log(buf);\n // <Buffer 61 61 61 61 61>\n```\n\nIf both `fill` and `encoding` are specified, the allocated `Buffer` will be\ninitialized by calling `buf.fill(fill, encoding)`. For example:\n\n```js\nconst buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');\nconsole.log(buf);\n // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>\n```\n\nCalling `Buffer.alloc(size)` can be significantly slower than the alternative\n`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance\ncontents will *never contain sensitive data*.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### Class Method: Buffer.allocUnsafe(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must\nbe less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit\narchitectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is\nthrown. A zero-length Buffer will be created if a `size` less than or equal to\n0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\n```js\nconst buf = Buffer.allocUnsafe(5);\nconsole.log(buf);\n // <Buffer 78 e0 82 02 01>\n // (octets will be different, every time)\nbuf.fill(0);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nA `TypeError` will be thrown if `size` is not a number.\n\nNote that the `Buffer` module pre-allocates an internal `Buffer` instance of\nsize `Buffer.poolSize` that is used as a pool for the fast allocation of new\n`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated\n`new Buffer(size)` constructor) only when `size` is less than or equal to\n`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default\nvalue of `Buffer.poolSize` is `8192` but can be modified.\n\nUse of this pre-allocated internal memory pool is a key difference between\ncalling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.\nSpecifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer\npool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal\nBuffer pool if `size` is less than or equal to half `Buffer.poolSize`. The\ndifference is subtle but can be important when an application requires the\nadditional performance that `Buffer.allocUnsafe(size)` provides.\n\n### Class Method: Buffer.allocUnsafeSlow(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The\n`size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\nWhen using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,\nallocations under 4KB are, by default, sliced from a single pre-allocated\n`Buffer`. This allows applications to avoid the garbage collection overhead of\ncreating many individually allocated Buffers. This approach improves both\nperformance and memory usage by eliminating the need to track and cleanup as\nmany `Persistent` objects.\n\nHowever, in the case where a developer may need to retain a small chunk of\nmemory from a pool for an indeterminate amount of time, it may be appropriate\nto create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then\ncopy out the relevant bits.\n\n```js\n// need to keep around a few small chunks of memory\nconst store = [];\n\nsocket.on('readable', () => {\n const data = socket.read();\n // allocate for retained data\n const sb = Buffer.allocUnsafeSlow(10);\n // copy the data into the new allocation\n data.copy(sb, 0, 0, 10);\n store.push(sb);\n});\n```\n\nUse of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*\na developer has observed undue memory retention in their applications.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### All the Rest\n\nThe rest of the `Buffer` API is exactly the same as in node.js.\n[See the docs](https://nodejs.org/api/buffer.html).\n\n## Related links\n\n- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)\n- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)\n\n## Why is `Buffer` unsafe?\n\nToday, the node.js `Buffer` constructor is overloaded to handle many different argument\ntypes like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),\n`ArrayBuffer`, and also `Number`.\n\nThe API is optimized for convenience: you can throw any type at it, and it will try to do\nwhat you want.\n\nBecause the Buffer constructor is so powerful, you often see code like this:\n\n```js\n// Convert UTF-8 strings to hex\nfunction toHex (str) {\n return new Buffer(str).toString('hex')\n}\n```\n\n***But what happens if `toHex` is called with a `Number` argument?***\n\n### Remote Memory Disclosure\n\nIf an attacker can make your program call the `Buffer` constructor with a `Number`\nargument, then they can make it allocate uninitialized memory from the node.js process.\nThis could potentially disclose TLS private keys, user data, or database passwords.\n\nWhen the `Buffer` constructor is passed a `Number` argument, it returns an\n**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like\nthis, you **MUST** overwrite the contents before returning it to the user.\n\nFrom the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):\n\n> `new Buffer(size)`\n>\n> - `size` Number\n>\n> The underlying memory for `Buffer` instances created in this way is not initialized.\n> **The contents of a newly created `Buffer` are unknown and could contain sensitive\n> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.\n\n(Emphasis our own.)\n\nWhenever the programmer intended to create an uninitialized `Buffer` you often see code\nlike this:\n\n```js\nvar buf = new Buffer(16)\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### Would this ever be a problem in real code?\n\nYes. It's surprisingly common to forget to check the type of your variables in a\ndynamically-typed language like JavaScript.\n\nUsually the consequences of assuming the wrong type is that your program crashes with an\nuncaught exception. But the failure mode for forgetting to check the type of arguments to\nthe `Buffer` constructor is more catastrophic.\n\nHere's an example of a vulnerable service that takes a JSON payload and converts it to\nhex:\n\n```js\n// Take a JSON payload {str: \"some string\"} and convert it to hex\nvar server = http.createServer(function (req, res) {\n var data = ''\n req.setEncoding('utf8')\n req.on('data', function (chunk) {\n data += chunk\n })\n req.on('end', function () {\n var body = JSON.parse(data)\n res.end(new Buffer(body.str).toString('hex'))\n })\n})\n\nserver.listen(8080)\n```\n\nIn this example, an http client just has to send:\n\n```json\n{\n \"str\": 1000\n}\n```\n\nand it will get back 1,000 bytes of uninitialized memory from the server.\n\nThis is a very serious bug. It's similar in severity to the\n[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process\nmemory by remote attackers.\n\n### Which real-world packages were vulnerable?\n\n#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)\n\n[Mathias Buus](https://github.com/mafintosh) and I\n([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,\n[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow\nanyone on the internet to send a series of messages to a user of `bittorrent-dht` and get\nthem to reveal 20 bytes at a time of uninitialized memory from the node.js process.\n\nHere's\n[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)\nthat fixed it. We released a new fixed version, created a\n[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all\nvulnerable versions on npm so users will get a warning to upgrade to a newer version.\n\n#### [`ws`](https://www.npmjs.com/package/ws)\n\nThat got us wondering if there were other vulnerable packages. Sure enough, within a short\nperiod of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the\nmost popular WebSocket implementation in node.js.\n\nIf certain APIs were called with `Number` parameters instead of `String` or `Buffer` as\nexpected, then uninitialized server memory would be disclosed to the remote peer.\n\nThese were the vulnerable methods:\n\n```js\nsocket.send(number)\nsocket.ping(number)\nsocket.pong(number)\n```\n\nHere's a vulnerable socket server with some echo functionality:\n\n```js\nserver.on('connection', function (socket) {\n socket.on('message', function (message) {\n message = JSON.parse(message)\n if (message.type === 'echo') {\n socket.send(message.data) // send back the user's message\n }\n })\n})\n```\n\n`socket.send(number)` called on the server, will disclose server memory.\n\nHere's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue\nwas fixed, with a more detailed explanation. Props to\n[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the\n[Node Security Project disclosure](https://nodesecurity.io/advisories/67).\n\n### What's the solution?\n\nIt's important that node.js offers a fast way to get memory otherwise performance-critical\napplications would needlessly get a lot slower.\n\nBut we need a better way to *signal our intent* as programmers. **When we want\nuninitialized memory, we should request it explicitly.**\n\nSensitive functionality should not be packed into a developer-friendly API that loosely\naccepts many different types. This type of API encourages the lazy practice of passing\nvariables in without checking the type very carefully.\n\n#### A new API: `Buffer.allocUnsafe(number)`\n\nThe functionality of creating buffers with uninitialized memory should be part of another\nAPI. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that\nfrequently gets user input of all sorts of different types passed into it.\n\n```js\nvar buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### How do we fix node.js core?\n\nWe sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as\n`semver-major`) which defends against one case:\n\n```js\nvar str = 16\nnew Buffer(str, 'utf8')\n```\n\nIn this situation, it's implied that the programmer intended the first argument to be a\nstring, since they passed an encoding as a second argument. Today, node.js will allocate\nuninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not\nwhat the programmer intended.\n\nBut this is only a partial solution, since if the programmer does `new Buffer(variable)`\n(without an `encoding` parameter) there's no way to know what they intended. If `variable`\nis sometimes a number, then uninitialized memory will sometimes be returned.\n\n### What's the real long-term fix?\n\nWe could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when\nwe need uninitialized memory. But that would break 1000s of packages.\n\n~~We believe the best solution is to:~~\n\n~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~\n\n~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~\n\n#### Update\n\nWe now support adding three new APIs:\n\n- `Buffer.from(value)` - convert from any type to a buffer\n- `Buffer.alloc(size)` - create a zero-filled buffer\n- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size\n\nThis solves the core problem that affected `ws` and `bittorrent-dht` which is\n`Buffer(variable)` getting tricked into taking a number argument.\n\nThis way, existing code continues working and the impact on the npm ecosystem will be\nminimal. Over time, npm maintainers can migrate performance-critical code to use\n`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.\n\n### Conclusion\n\nWe think there's a serious design issue with the `Buffer` API as it exists today. It\npromotes insecure software by putting high-risk functionality into a convenient API\nwith friendly \"developer ergonomics\".\n\nThis wasn't merely a theoretical exercise because we found the issue in some of the\nmost popular npm packages.\n\nFortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of\n`buffer`.\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n```\n\nEventually, we hope that node.js core can switch to this new, safer behavior. We believe\nthe impact on the ecosystem would be minimal since it's not a breaking change.\nWell-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while\nolder, insecure packages would magically become safe from this attack vector.\n\n## links\n\n- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)\n- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)\n- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)\n\n## credit\n\nThe original issues in `bittorrent-dht`\n([disclosure](https://nodesecurity.io/advisories/68)) and\n`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by\n[Mathias Buus](https://github.com/mafintosh) and\n[Feross Aboukhadijeh](http://feross.org/).\n\nThanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues\nand for his work running the [Node Security Project](https://nodesecurity.io/).\n\nThanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and\nauditing the code.\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)\n# wrappy\n\nCallback wrapping utility\n\n## USAGE\n\n```javascript\nvar wrappy = require(\"wrappy\")\n\n// var wrapper = wrappy(wrapperFunction)\n\n// make sure a cb is called only once\n// See also: http://npm.im/once for this specific use case\nvar once = wrappy(function (cb) {\n var called = false\n return function () {\n if (called) return\n called = true\n return cb.apply(this, arguments)\n }\n})\n\nfunction printBoo () {\n console.log('boo')\n}\n// has some rando property\nprintBoo.iAmBooPrinter = true\n\nvar onlyPrintOnce = once(printBoo)\n\nonlyPrintOnce() // prints 'boo'\nonlyPrintOnce() // does nothing\n\n// random property is retained!\nassert.equal(onlyPrintOnce.iAmBooPrinter, true)\n```\n# <img src=\"docs_app/assets/Rx_Logo_S.png\" alt=\"RxJS Logo\" width=\"86\" height=\"86\"> RxJS: Reactive Extensions For JavaScript\n\n[](https://circleci.com/gh/ReactiveX/rxjs/tree/6.x)\n[](http://badge.fury.io/js/%40reactivex%2Frxjs)\n[](https://gitter.im/Reactive-Extensions/RxJS?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)\n\n# RxJS 6 Stable\n\n### MIGRATION AND RELEASE INFORMATION:\n\nFind out how to update to v6, **automatically update your TypeScript code**, and more!\n\n- [Current home is MIGRATION.md](./docs_app/content/guide/v6/migration.md)\n\n### FOR V 5.X PLEASE GO TO [THE 5.0 BRANCH](https://github.com/ReactiveX/rxjs/tree/5.x)\n\nReactive Extensions Library for JavaScript. This is a rewrite of [Reactive-Extensions/RxJS](https://github.com/Reactive-Extensions/RxJS) and is the latest production-ready version of RxJS. This rewrite is meant to have better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.\n\n[Apache 2.0 License](LICENSE.txt)\n\n- [Code of Conduct](CODE_OF_CONDUCT.md)\n- [Contribution Guidelines](CONTRIBUTING.md)\n- [Maintainer Guidelines](doc_app/content/maintainer-guidelines.md)\n- [API Documentation](https://rxjs.dev/)\n\n## Versions In This Repository\n\n- [master](https://github.com/ReactiveX/rxjs/commits/master) - This is all of the current, unreleased work, which is against v6 of RxJS right now\n- [stable](https://github.com/ReactiveX/rxjs/commits/stable) - This is the branch for the latest version you'd get if you do `npm install rxjs`\n\n## Important\n\nBy contributing or commenting on issues in this repository, whether you've read them or not, you're agreeing to the [Contributor Code of Conduct](CODE_OF_CONDUCT.md). Much like traffic laws, ignorance doesn't grant you immunity.\n\n## Installation and Usage\n\n### ES6 via npm\n\n```sh\nnpm install rxjs\n```\n\nIt's recommended to pull in the Observable creation methods you need directly from `'rxjs'` as shown below with `range`. And you can pull in any operator you need from one spot, under `'rxjs/operators'`.\n\n```ts\nimport { range } from \"rxjs\";\nimport { map, filter } from \"rxjs/operators\";\n\nrange(1, 200)\n .pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n )\n .subscribe(x => console.log(x));\n```\n\nHere, we're using the built-in `pipe` method on Observables to combine operators. See [pipeable operators](https://github.com/ReactiveX/rxjs/blob/master/doc/pipeable-operators.md) for more information.\n\n### CommonJS via npm\n\nTo install this library for CommonJS (CJS) usage, use the following command:\n\n```sh\nnpm install rxjs\n```\n\n(Note: destructuring available in Node 8+)\n\n```js\nconst { range } = require('rxjs');\nconst { map, filter } = require('rxjs/operators');\n\nrange(1, 200).pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n).subscribe(x => console.log(x));\n```\n\n### CDN\n\nFor CDN, you can use [unpkg](https://unpkg.com/):\n\nhttps://unpkg.com/rxjs/bundles/rxjs.umd.min.js\n\nThe global namespace for rxjs is `rxjs`:\n\n```js\nconst { range } = rxjs;\nconst { map, filter } = rxjs.operators;\n\nrange(1, 200)\n .pipe(\n filter(x => x % 2 === 1),\n map(x => x + x)\n )\n .subscribe(x => console.log(x));\n```\n\n## Goals\n\n- Smaller overall bundles sizes\n- Provide better performance than preceding versions of RxJS\n- To model/follow the [Observable Spec Proposal](https://github.com/zenparsing/es-observable) to the observable\n- Provide more modular file structure in a variety of formats\n- Provide more debuggable call stacks than preceding versions of RxJS\n\n## Building/Testing\n\n- `npm run build_all` - builds everything\n- `npm test` - runs tests\n- `npm run test_no_cache` - run test with `ts-node` set to false\n\n## Performance Tests\n\nRun `npm run build_perf` or `npm run perf` to run the performance tests with `protractor`.\n\nRun `npm run perf_micro [operator]` to run micro performance test benchmarking operator.\n\n## Adding documentation\n\nWe appreciate all contributions to the documentation of any type. All of the information needed to get the docs app up and running locally as well as how to contribute can be found in the [documentation directory](./docs_app).\n\n## Generating PNG marble diagrams\n\nThe script `npm run tests2png` requires some native packages installed locally: `imagemagick`, `graphicsmagick`, and `ghostscript`.\n\nFor Mac OS X with [Homebrew](http://brew.sh/):\n\n- `brew install imagemagick`\n- `brew install graphicsmagick`\n- `brew install ghostscript`\n- You may need to install the Ghostscript fonts manually:\n - Download the tarball from the [gs-fonts project](https://sourceforge.net/projects/gs-fonts)\n - `mkdir -p /usr/local/share/ghostscript && tar zxvf /path/to/ghostscript-fonts.tar.gz -C /usr/local/share/ghostscript`\n\nFor Debian Linux:\n\n- `sudo add-apt-repository ppa:dhor/myway`\n- `apt-get install imagemagick`\n- `apt-get install graphicsmagick`\n- `apt-get install ghostscript`\n\nFor Windows and other Operating Systems, check the download instructions here:\n\n- http://imagemagick.org\n- http://www.graphicsmagick.org\n- http://www.ghostscript.com/\n# libusb\n\n[](https://travis-ci.org/libusb/libusb)\n[](https://ci.appveyor.com/project/LudovicRousseau/libusb)\n[](https://scan.coverity.com/projects/libusb-libusb)\n\nlibusb is a library for USB device access from Linux, macOS,\nWindows, OpenBSD/NetBSD and Haiku userspace.\nIt is written in C (Haiku backend in C++) and licensed under the GNU\nLesser General Public License version 2.1 or, at your option, any later\nversion (see [COPYING](COPYING)).\n\nlibusb is abstracted internally in such a way that it can hopefully\nbe ported to other operating systems. Please see the [PORTING](PORTING)\nfile for more information.\n\nlibusb homepage:\nhttp://libusb.info/\n\nDevelopers will wish to consult the API documentation:\nhttp://api.libusb.info\n\nUse the mailing list for questions, comments, etc:\nhttp://mailing-list.libusb.info\n\n- Hans de Goede <hdegoede@redhat.com>\n- Xiaofan Chen <xiaofanc@gmail.com>\n- Ludovic Rousseau <ludovic.rousseau@gmail.com>\n- Nathan Hjelm <hjelmn@cs.unm.edu>\n- Chris Dickens <christopher.a.dickens@gmail.com>\n\n(Please use the mailing list rather than mailing developers directly)\nLike `chown -R`.\n\nTakes the same arguments as `fs.chown()`\nPure-UUID\n=========\n\n**Pure JavaScript Based Universally Unique Identifier (UUID)**\n\n<p/>\n<img src=\"https://nodei.co/npm/pure-uuid.png?downloads=true&stars=true\" alt=\"\"/>\n\n<p/>\n<img src=\"https://david-dm.org/rse/pure-uuid.png\" alt=\"\"/>\n\nAbstract\n--------\n\nThis is a pure JavaScript and dependency-free library for the generation\nof DCE 1.1, ISO/IEC 11578:1996 and IETF RFC-4122 compliant Universally\nUnique Identifier (UUID). It supports DCE 1.1 variant UUIDs of version\n1 (time and node based), version 3 (name based, MD5), version 4 (random\nnumber based) and version 5 (name based, SHA-1). It can be used in both\n[Node.js](http://nodejs.org/) based server and browser based client\nenvironments.\n\nThe essential points of this implementation (in contrast to the many\nothers) are: First, although internally 32/64 bit unsigned integer\narithmentic and MD5/SHA-1 digest algorithmic is required, this UUID\nimplementation is fully self-contained and dependency-free. Second,\nthis implementation wraps around either `Uint8Array`, `Buffer` or\n`Array` standard classes and this way tries to represent UUIDs as best\nas possible in the particular environment. Third, thanks to a Universal\nModule Definition (UMD) wrapper, this library works out-of-the-box in\nall important JavaScript run-time environments.\n\nWhat is a UUID?\n---------------\n\nUUIDs are 128 bit numbers which are intended to have a high likelihood\nof uniqueness over space and time and are computationally difficult to\nguess. They are globally unique identifiers which can be locally\ngenerated without contacting a global registration authority. UUIDs are\nintended as unique identifiers for both mass tagging objects with an\nextremely short lifetime and to reliably identifying very persistent\nobjects across a network.\n\n### UUID Binary Representation\n\nAccording to the DCE 1.1, ISO/IEC 11578:1996 and IETF RFC-4122\nstandards, a DCE 1.1 variant UUID is a 128 bit number defined out of 7\nfields, each field a multiple of an octet in size and stored in network\nbyte order:\n\n```txt\n [4]\n version\n -->| |<--\n | |\n | | [16]\n [32] [16] | |time_hi\n time_low time_mid | _and_version\n |<---------------------------->||<------------>||<------------>|\n | MSB || || | |\n | / || || | |\n |/ || || | |\n\n +------++------++------++------++------++------++------++------+~~\n | 15 || 14 || 13 || 12 || 11 || 10 |####9 || 8 |\n | MSO || || || || || |#### || |\n +------++------++------++------++------++------++------++------+~~\n 7654321076543210765432107654321076543210765432107654321076543210\n\n ~~+------++------++------++------++------++------++------++------+\n ##* 7 || 6 || 5 || 4 || 3 || 2 || 1 || 0 |\n ##* || || || || || || || LSO |\n ~~+------++------++------++------++------++------++------++------+\n 7654321076543210765432107654321076543210765432107654321076543210\n\n | | || || /|\n | | || || / |\n | | || || LSB |\n |<---->||<---->||<-------------------------------------------->|\n |clk_seq clk_seq node\n |_hi_res _low [48]\n |[5-6] [8]\n | |\n -->| |<--\n variant\n [2-3]\n```\n\nAn example of a UUID binary representation is the octet stream 0xF8\n0x1D 0x4F 0xAE 0x7D 0xEC 0x11 0xD0 0xA7 0x65 0x00 0xA0 0xC9 0x1E 0x6B\n0xF6.\n\n### UUID ASCII String Representation\n\nAccording to the DCE 1.1, ISO/IEC 11578:1996 and IETF RFC-4122\nstandards, a DCE 1.1 variant UUID is represented as an ASCII string\nconsisting of 8 hexadecimal digits followed by a hyphen, then three\ngroups of 4 hexadecimal digits each followed by a hyphen, then 12\nhexadecimal digits.\n\nGetting Pure-UUID\n-----------------\n\n```\n$ npm install pure-uuid\n```\n\nUsing Pure-UUID\n---------------\n\n- global environment:\n\n```js\nvar uuid = new UUID(3, \"ns:URL\", \"http://example.com/\");\n```\n\n- CommonJS environment:\n\n```js\nvar UUID = require(\"pure-uuid\");\nvar uuid = new UUID(3, \"ns:URL\", \"http://example.com/\");\n```\n\n- AMD environment:\n\n```js\ndefine([\"pure-uuid\"], function (UUID) {\n var uuid = new UUID(3, \"ns:URL\", \"http://example.com/\");\n});\n```\n\nAPI\n---\n\n```ts\ninterface UUID {\n /* making */\n make(version: number, ...params: any[]): UUID;\n\n /* parsing */\n parse(str: string): UUID;\n\n /* formatting */\n format(type?: string): string;\n\n /* formatting (alias) */\n toString(type?: string): string;\n\n /* sensible JSON serialization */\n toJSON(): string;\n\n /* importing */\n import(arr: number[]): UUID;\n\n /* exporting */\n export(): number[];\n\n /* byte-wise comparison */\n compare(other: UUID): boolean;\n\n /* equal check */\n equal(other: UUID): boolean;\n\n /* fold 1-4 times */\n fold(k: number): number[];\n}\n\nexport interface UUIDConstructor {\n /* default construction */\n new(): UUID;\n\n /* parsing construction */\n new(uuid: string): UUID;\n\n /* making construction */\n new(version: number): UUID;\n new(version: number, ns: string, data: string): UUID;\n}\n\ndeclare var UUID: UUIDConstructor;\nexport default UUID;\n```\n\nExamples\n--------\n\n```js\n// load a UUID\nuuid = new UUID(\"0a300ee9-f9e4-5697-a51a-efc7fafaba67\");\n\n// make a UUID version 1 (time and node based)\nuuid = new UUID(1);\n\n// make a UUID version 3 (name-based, MD5)\nuuid = new UUID(3, \"ns:URL\", \"http://example.com/\");\n\n// make a UUID version 4 (random number based)\nuuid = new UUID(4);\n\n// make a UUID version 5 (name-based, SHA-1)\nuuid = new UUID(5, \"ns:URL\", \"http://example.com/\");\n\n// format a UUID in standard format\nstr = uuid.format()\nstr = uuid.format(\"std\")\n\n// format a UUID in Base16 format\nstr = uuid.format(\"b16\")\n\n// format a UUID in ZeroMQ-Base85 format\nstr = uuid.format(\"z85\")\n```\n\nLicense\n-------\n\nCopyright (c) 2004-2021 Dr. Ralf S. Engelschall (http://engelschall.com/)\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n<p align=\"center\">\n <a href=\"https://gulpjs.com\">\n <img height=\"257\" width=\"114\" src=\"https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png\">\n </a>\n</p>\n\n# glob-parent\n\n[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Azure Pipelines Build Status][azure-pipelines-image]][azure-pipelines-url] [![Travis Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]\n\nExtract the non-magic parent path from a glob string.\n\n## Usage\n\n```js\nvar globParent = require('glob-parent');\n\nglobParent('path/to/*.js'); // 'path/to'\nglobParent('/root/path/to/*.js'); // '/root/path/to'\nglobParent('/*.js'); // '/'\nglobParent('*.js'); // '.'\nglobParent('**/*.js'); // '.'\nglobParent('path/{to,from}'); // 'path'\nglobParent('path/!(to|from)'); // 'path'\nglobParent('path/?(to|from)'); // 'path'\nglobParent('path/+(to|from)'); // 'path'\nglobParent('path/*(to|from)'); // 'path'\nglobParent('path/@(to|from)'); // 'path'\nglobParent('path/**/*'); // 'path'\n\n// if provided a non-glob path, returns the nearest dir\nglobParent('path/foo/bar.js'); // 'path/foo'\nglobParent('path/foo/'); // 'path/foo'\nglobParent('path/foo'); // 'path' (see issue #3 for details)\n```\n\n## API\n\n### `globParent(maybeGlobString, [options])`\n\nTakes a string and returns the part of the path before the glob begins. Be aware of Escaping rules and Limitations below.\n\n#### options\n\n```js\n{\n // Disables the automatic conversion of slashes for Windows\n flipBackslashes: true\n}\n```\n\n## Escaping\n\nThe following characters have special significance in glob patterns and must be escaped if you want them to be treated as regular path characters:\n\n- `?` (question mark) unless used as a path segment alone\n- `*` (asterisk)\n- `|` (pipe)\n- `(` (opening parenthesis)\n- `)` (closing parenthesis)\n- `{` (opening curly brace)\n- `}` (closing curly brace)\n- `[` (opening bracket)\n- `]` (closing bracket)\n\n**Example**\n\n```js\nglobParent('foo/[bar]/') // 'foo'\nglobParent('foo/\\\\[bar]/') // 'foo/[bar]'\n```\n\n## Limitations\n\n### Braces & Brackets\nThis library attempts a quick and imperfect method of determining which path\nparts have glob magic without fully parsing/lexing the pattern. There are some\nadvanced use cases that can trip it up, such as nested braces where the outer\npair is escaped and the inner one contains a path separator. If you find\nyourself in the unlikely circumstance of being affected by this or need to\nensure higher-fidelity glob handling in your library, it is recommended that you\npre-process your input with [expand-braces] and/or [expand-brackets].\n\n### Windows\nBackslashes are not valid path separators for globs. If a path with backslashes\nis provided anyway, for simple cases, glob-parent will replace the path\nseparator for you and return the non-glob parent path (now with\nforward-slashes, which are still valid as Windows path separators).\n\nThis cannot be used in conjunction with escape characters.\n\n```js\n// BAD\nglobParent('C:\\\\Program Files \\\\(x86\\\\)\\\\*.ext') // 'C:/Program Files /(x86/)'\n\n// GOOD\nglobParent('C:/Program Files\\\\(x86\\\\)/*.ext') // 'C:/Program Files (x86)'\n```\n\nIf you are using escape characters for a pattern without path parts (i.e.\nrelative to `cwd`), prefix with `./` to avoid confusing glob-parent.\n\n```js\n// BAD\nglobParent('foo \\\\[bar]') // 'foo '\nglobParent('foo \\\\[bar]*') // 'foo '\n\n// GOOD\nglobParent('./foo \\\\[bar]') // 'foo [bar]'\nglobParent('./foo \\\\[bar]*') // '.'\n```\n\n## License\n\nISC\n\n[expand-braces]: https://github.com/jonschlinkert/expand-braces\n[expand-brackets]: https://github.com/jonschlinkert/expand-brackets\n\n[downloads-image]: https://img.shields.io/npm/dm/glob-parent.svg\n[npm-url]: https://www.npmjs.com/package/glob-parent\n[npm-image]: https://img.shields.io/npm/v/glob-parent.svg\n\n[azure-pipelines-url]: https://dev.azure.com/gulpjs/gulp/_build/latest?definitionId=2&branchName=master\n[azure-pipelines-image]: https://dev.azure.com/gulpjs/gulp/_apis/build/status/glob-parent?branchName=master\n\n[travis-url]: https://travis-ci.org/gulpjs/glob-parent\n[travis-image]: https://img.shields.io/travis/gulpjs/glob-parent.svg?label=travis-ci\n\n[appveyor-url]: https://ci.appveyor.com/project/gulpjs/glob-parent\n[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/glob-parent.svg?label=appveyor\n\n[coveralls-url]: https://coveralls.io/r/gulpjs/glob-parent\n[coveralls-image]: https://img.shields.io/coveralls/gulpjs/glob-parent/master.svg\n\n[gitter-url]: https://gitter.im/gulpjs/gulp\n[gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg\n# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/safe-buffer\n[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg\n[npm-url]: https://npmjs.org/package/safe-buffer\n[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg\n[downloads-url]: https://npmjs.org/package/safe-buffer\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n#### Safer Node.js Buffer API\n\n**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,\n`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**\n\n**Uses the built-in implementation when available.**\n\n## install\n\n```\nnpm install safe-buffer\n```\n\n## usage\n\nThe goal of this package is to provide a safe replacement for the node.js `Buffer`.\n\nIt's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to\nthe top of your node.js modules:\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n\n// Existing buffer code will continue to work without issues:\n\nnew Buffer('hey', 'utf8')\nnew Buffer([1, 2, 3], 'utf8')\nnew Buffer(obj)\nnew Buffer(16) // create an uninitialized buffer (potentially unsafe)\n\n// But you can use these new explicit APIs to make clear what you want:\n\nBuffer.from('hey', 'utf8') // convert from many types to a Buffer\nBuffer.alloc(16) // create a zero-filled buffer (safe)\nBuffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)\n```\n\n## api\n\n### Class Method: Buffer.from(array)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `array` {Array}\n\nAllocates a new `Buffer` using an `array` of octets.\n\n```js\nconst buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);\n // creates a new Buffer containing ASCII bytes\n // ['b','u','f','f','e','r']\n```\n\nA `TypeError` will be thrown if `array` is not an `Array`.\n\n### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or\n a `new ArrayBuffer()`\n* `byteOffset` {Number} Default: `0`\n* `length` {Number} Default: `arrayBuffer.length - byteOffset`\n\nWhen passed a reference to the `.buffer` property of a `TypedArray` instance,\nthe newly created `Buffer` will share the same allocated memory as the\nTypedArray.\n\n```js\nconst arr = new Uint16Array(2);\narr[0] = 5000;\narr[1] = 4000;\n\nconst buf = Buffer.from(arr.buffer); // shares the memory with arr;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 a0 0f>\n\n// changing the TypedArray changes the Buffer also\narr[1] = 6000;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 70 17>\n```\n\nThe optional `byteOffset` and `length` arguments specify a memory range within\nthe `arrayBuffer` that will be shared by the `Buffer`.\n\n```js\nconst ab = new ArrayBuffer(10);\nconst buf = Buffer.from(ab, 0, 2);\nconsole.log(buf.length);\n // Prints: 2\n```\n\nA `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.\n\n### Class Method: Buffer.from(buffer)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `buffer` {Buffer}\n\nCopies the passed `buffer` data onto a new `Buffer` instance.\n\n```js\nconst buf1 = Buffer.from('buffer');\nconst buf2 = Buffer.from(buf1);\n\nbuf1[0] = 0x61;\nconsole.log(buf1.toString());\n // 'auffer'\nconsole.log(buf2.toString());\n // 'buffer' (copy is not changed)\n```\n\nA `TypeError` will be thrown if `buffer` is not a `Buffer`.\n\n### Class Method: Buffer.from(str[, encoding])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `str` {String} String to encode.\n* `encoding` {String} Encoding to use, Default: `'utf8'`\n\nCreates a new `Buffer` containing the given JavaScript string `str`. If\nprovided, the `encoding` parameter identifies the character encoding.\nIf not provided, `encoding` defaults to `'utf8'`.\n\n```js\nconst buf1 = Buffer.from('this is a tést');\nconsole.log(buf1.toString());\n // prints: this is a tést\nconsole.log(buf1.toString('ascii'));\n // prints: this is a tC)st\n\nconst buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');\nconsole.log(buf2.toString());\n // prints: this is a tést\n```\n\nA `TypeError` will be thrown if `str` is not a string.\n\n### Class Method: Buffer.alloc(size[, fill[, encoding]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n* `fill` {Value} Default: `undefined`\n* `encoding` {String} Default: `utf8`\n\nAllocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the\n`Buffer` will be *zero-filled*.\n\n```js\nconst buf = Buffer.alloc(5);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nThe `size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nIf `fill` is specified, the allocated `Buffer` will be initialized by calling\n`buf.fill(fill)`. See [`buf.fill()`][] for more information.\n\n```js\nconst buf = Buffer.alloc(5, 'a');\nconsole.log(buf);\n // <Buffer 61 61 61 61 61>\n```\n\nIf both `fill` and `encoding` are specified, the allocated `Buffer` will be\ninitialized by calling `buf.fill(fill, encoding)`. For example:\n\n```js\nconst buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');\nconsole.log(buf);\n // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>\n```\n\nCalling `Buffer.alloc(size)` can be significantly slower than the alternative\n`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance\ncontents will *never contain sensitive data*.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### Class Method: Buffer.allocUnsafe(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must\nbe less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit\narchitectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is\nthrown. A zero-length Buffer will be created if a `size` less than or equal to\n0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\n```js\nconst buf = Buffer.allocUnsafe(5);\nconsole.log(buf);\n // <Buffer 78 e0 82 02 01>\n // (octets will be different, every time)\nbuf.fill(0);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nA `TypeError` will be thrown if `size` is not a number.\n\nNote that the `Buffer` module pre-allocates an internal `Buffer` instance of\nsize `Buffer.poolSize` that is used as a pool for the fast allocation of new\n`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated\n`new Buffer(size)` constructor) only when `size` is less than or equal to\n`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default\nvalue of `Buffer.poolSize` is `8192` but can be modified.\n\nUse of this pre-allocated internal memory pool is a key difference between\ncalling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.\nSpecifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer\npool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal\nBuffer pool if `size` is less than or equal to half `Buffer.poolSize`. The\ndifference is subtle but can be important when an application requires the\nadditional performance that `Buffer.allocUnsafe(size)` provides.\n\n### Class Method: Buffer.allocUnsafeSlow(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The\n`size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\nWhen using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,\nallocations under 4KB are, by default, sliced from a single pre-allocated\n`Buffer`. This allows applications to avoid the garbage collection overhead of\ncreating many individually allocated Buffers. This approach improves both\nperformance and memory usage by eliminating the need to track and cleanup as\nmany `Persistent` objects.\n\nHowever, in the case where a developer may need to retain a small chunk of\nmemory from a pool for an indeterminate amount of time, it may be appropriate\nto create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then\ncopy out the relevant bits.\n\n```js\n// need to keep around a few small chunks of memory\nconst store = [];\n\nsocket.on('readable', () => {\n const data = socket.read();\n // allocate for retained data\n const sb = Buffer.allocUnsafeSlow(10);\n // copy the data into the new allocation\n data.copy(sb, 0, 0, 10);\n store.push(sb);\n});\n```\n\nUse of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*\na developer has observed undue memory retention in their applications.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### All the Rest\n\nThe rest of the `Buffer` API is exactly the same as in node.js.\n[See the docs](https://nodejs.org/api/buffer.html).\n\n## Related links\n\n- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)\n- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)\n\n## Why is `Buffer` unsafe?\n\nToday, the node.js `Buffer` constructor is overloaded to handle many different argument\ntypes like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),\n`ArrayBuffer`, and also `Number`.\n\nThe API is optimized for convenience: you can throw any type at it, and it will try to do\nwhat you want.\n\nBecause the Buffer constructor is so powerful, you often see code like this:\n\n```js\n// Convert UTF-8 strings to hex\nfunction toHex (str) {\n return new Buffer(str).toString('hex')\n}\n```\n\n***But what happens if `toHex` is called with a `Number` argument?***\n\n### Remote Memory Disclosure\n\nIf an attacker can make your program call the `Buffer` constructor with a `Number`\nargument, then they can make it allocate uninitialized memory from the node.js process.\nThis could potentially disclose TLS private keys, user data, or database passwords.\n\nWhen the `Buffer` constructor is passed a `Number` argument, it returns an\n**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like\nthis, you **MUST** overwrite the contents before returning it to the user.\n\nFrom the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):\n\n> `new Buffer(size)`\n>\n> - `size` Number\n>\n> The underlying memory for `Buffer` instances created in this way is not initialized.\n> **The contents of a newly created `Buffer` are unknown and could contain sensitive\n> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.\n\n(Emphasis our own.)\n\nWhenever the programmer intended to create an uninitialized `Buffer` you often see code\nlike this:\n\n```js\nvar buf = new Buffer(16)\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### Would this ever be a problem in real code?\n\nYes. It's surprisingly common to forget to check the type of your variables in a\ndynamically-typed language like JavaScript.\n\nUsually the consequences of assuming the wrong type is that your program crashes with an\nuncaught exception. But the failure mode for forgetting to check the type of arguments to\nthe `Buffer` constructor is more catastrophic.\n\nHere's an example of a vulnerable service that takes a JSON payload and converts it to\nhex:\n\n```js\n// Take a JSON payload {str: \"some string\"} and convert it to hex\nvar server = http.createServer(function (req, res) {\n var data = ''\n req.setEncoding('utf8')\n req.on('data', function (chunk) {\n data += chunk\n })\n req.on('end', function () {\n var body = JSON.parse(data)\n res.end(new Buffer(body.str).toString('hex'))\n })\n})\n\nserver.listen(8080)\n```\n\nIn this example, an http client just has to send:\n\n```json\n{\n \"str\": 1000\n}\n```\n\nand it will get back 1,000 bytes of uninitialized memory from the server.\n\nThis is a very serious bug. It's similar in severity to the\n[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process\nmemory by remote attackers.\n\n### Which real-world packages were vulnerable?\n\n#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)\n\n[Mathias Buus](https://github.com/mafintosh) and I\n([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,\n[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow\nanyone on the internet to send a series of messages to a user of `bittorrent-dht` and get\nthem to reveal 20 bytes at a time of uninitialized memory from the node.js process.\n\nHere's\n[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)\nthat fixed it. We released a new fixed version, created a\n[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all\nvulnerable versions on npm so users will get a warning to upgrade to a newer version.\n\n#### [`ws`](https://www.npmjs.com/package/ws)\n\nThat got us wondering if there were other vulnerable packages. Sure enough, within a short\nperiod of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the\nmost popular WebSocket implementation in node.js.\n\nIf certain APIs were called with `Number` parameters instead of `String` or `Buffer` as\nexpected, then uninitialized server memory would be disclosed to the remote peer.\n\nThese were the vulnerable methods:\n\n```js\nsocket.send(number)\nsocket.ping(number)\nsocket.pong(number)\n```\n\nHere's a vulnerable socket server with some echo functionality:\n\n```js\nserver.on('connection', function (socket) {\n socket.on('message', function (message) {\n message = JSON.parse(message)\n if (message.type === 'echo') {\n socket.send(message.data) // send back the user's message\n }\n })\n})\n```\n\n`socket.send(number)` called on the server, will disclose server memory.\n\nHere's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue\nwas fixed, with a more detailed explanation. Props to\n[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the\n[Node Security Project disclosure](https://nodesecurity.io/advisories/67).\n\n### What's the solution?\n\nIt's important that node.js offers a fast way to get memory otherwise performance-critical\napplications would needlessly get a lot slower.\n\nBut we need a better way to *signal our intent* as programmers. **When we want\nuninitialized memory, we should request it explicitly.**\n\nSensitive functionality should not be packed into a developer-friendly API that loosely\naccepts many different types. This type of API encourages the lazy practice of passing\nvariables in without checking the type very carefully.\n\n#### A new API: `Buffer.allocUnsafe(number)`\n\nThe functionality of creating buffers with uninitialized memory should be part of another\nAPI. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that\nfrequently gets user input of all sorts of different types passed into it.\n\n```js\nvar buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### How do we fix node.js core?\n\nWe sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as\n`semver-major`) which defends against one case:\n\n```js\nvar str = 16\nnew Buffer(str, 'utf8')\n```\n\nIn this situation, it's implied that the programmer intended the first argument to be a\nstring, since they passed an encoding as a second argument. Today, node.js will allocate\nuninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not\nwhat the programmer intended.\n\nBut this is only a partial solution, since if the programmer does `new Buffer(variable)`\n(without an `encoding` parameter) there's no way to know what they intended. If `variable`\nis sometimes a number, then uninitialized memory will sometimes be returned.\n\n### What's the real long-term fix?\n\nWe could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when\nwe need uninitialized memory. But that would break 1000s of packages.\n\n~~We believe the best solution is to:~~\n\n~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~\n\n~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~\n\n#### Update\n\nWe now support adding three new APIs:\n\n- `Buffer.from(value)` - convert from any type to a buffer\n- `Buffer.alloc(size)` - create a zero-filled buffer\n- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size\n\nThis solves the core problem that affected `ws` and `bittorrent-dht` which is\n`Buffer(variable)` getting tricked into taking a number argument.\n\nThis way, existing code continues working and the impact on the npm ecosystem will be\nminimal. Over time, npm maintainers can migrate performance-critical code to use\n`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.\n\n### Conclusion\n\nWe think there's a serious design issue with the `Buffer` API as it exists today. It\npromotes insecure software by putting high-risk functionality into a convenient API\nwith friendly \"developer ergonomics\".\n\nThis wasn't merely a theoretical exercise because we found the issue in some of the\nmost popular npm packages.\n\nFortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of\n`buffer`.\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n```\n\nEventually, we hope that node.js core can switch to this new, safer behavior. We believe\nthe impact on the ecosystem would be minimal since it's not a breaking change.\nWell-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while\nolder, insecure packages would magically become safe from this attack vector.\n\n## links\n\n- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)\n- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)\n- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)\n\n## credit\n\nThe original issues in `bittorrent-dht`\n([disclosure](https://nodesecurity.io/advisories/68)) and\n`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by\n[Mathias Buus](https://github.com/mafintosh) and\n[Feross Aboukhadijeh](http://feross.org/).\n\nThanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues\nand for his work running the [Node Security Project](https://nodesecurity.io/).\n\nThanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and\nauditing the code.\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)\n# path-browserify [](https://travis-ci.org/browserify/path-browserify)\n\n> The `path` module from Node.js for browsers\n\nThis implements the Node.js [`path`][path] module for environments that do not have it, like browsers.\n\n> `path-browserify` currently matches the **Node.js 10.3** API.\n\n## Install\n\nYou usually do not have to install `path-browserify` yourself! If your code runs in Node.js, `path` is built in. If your code runs in the browser, bundlers like [browserify](https://github.com/browserify/browserify) or [webpack](https://github.com/webpack/webpack) include the `path-browserify` module by default.\n\nBut if none of those apply, with npm do:\n\n```\nnpm install path-browserify\n```\n\n## Usage\n\n```javascript\nvar path = require('path')\n\nvar filename = 'logo.png';\nvar logo = path.join('./assets/img', filename);\ndocument.querySelector('#logo').src = logo;\n```\n\n## API\n\nSee the [Node.js path docs][path]. `path-browserify` currently matches the Node.js 10.3 API.\n`path-browserify` only implements the POSIX functions, not the win32 ones.\n\n## Contributing\n\nPRs are very welcome! The main way to contribute to `path-browserify` is by porting features, bugfixes and tests from Node.js. Ideally, code contributions to this module are copy-pasted from Node.js and transpiled to ES5, rather than reimplemented from scratch. Matching the Node.js code as closely as possible makes maintenance simpler when new changes land in Node.js.\nThis module intends to provide exactly the same API as Node.js, so features that are not available in the core `path` module will not be accepted. Feature requests should instead be directed at [nodejs/node](https://github.com/nodejs/node) and will be added to this module once they are implemented in Node.js.\n\nIf there is a difference in behaviour between Node.js's `path` module and this module, please open an issue!\n\n## License\n\n[MIT](./LICENSE)\n\n[path]: https://nodejs.org/docs/v10.3.0/api/path.html\n# node-error-ex [](https://travis-ci.org/Qix-/node-error-ex) [](https://coveralls.io/r/Qix-/node-error-ex)\n> Easily subclass and customize new Error types\n\n## Examples\nTo include in your project:\n```javascript\nvar errorEx = require('error-ex');\n```\n\nTo create an error message type with a specific name (note, that `ErrorFn.name`\nwill not reflect this):\n```javascript\nvar JSONError = errorEx('JSONError');\n\nvar err = new JSONError('error');\nerr.name; //-> JSONError\nthrow err; //-> JSONError: error\n```\n\nTo add a stack line:\n```javascript\nvar JSONError = errorEx('JSONError', {fileName: errorEx.line('in %s')});\n\nvar err = new JSONError('error')\nerr.fileName = '/a/b/c/foo.json';\nthrow err; //-> (line 2)-> in /a/b/c/foo.json\n```\n\nTo append to the error message:\n```javascript\nvar JSONError = errorEx('JSONError', {fileName: errorEx.append('in %s')});\n\nvar err = new JSONError('error');\nerr.fileName = '/a/b/c/foo.json';\nthrow err; //-> JSONError: error in /a/b/c/foo.json\n```\n\n## API\n\n#### `errorEx([name], [properties])`\nCreates a new ErrorEx error type\n\n- `name`: the name of the new type (appears in the error message upon throw;\n defaults to `Error.name`)\n- `properties`: if supplied, used as a key/value dictionary of properties to\n use when building up the stack message. Keys are property names that are\n looked up on the error message, and then passed to function values.\n\t- `line`: if specified and is a function, return value is added as a stack\n entry (error-ex will indent for you). Passed the property value given\n the key.\n - `stack`: if specified and is a function, passed the value of the property\n using the key, and the raw stack lines as a second argument. Takes no\n return value (but the stack can be modified directly).\n - `message`: if specified and is a function, return value is used as new\n `.message` value upon get. Passed the property value of the property named\n by key, and the existing message is passed as the second argument as an\n array of lines (suitable for multi-line messages).\n\nReturns a constructor (Function) that can be used just like the regular Error\nconstructor.\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar BasicError = errorEx();\n\nvar NamedError = errorEx('NamedError');\n\n// --\n\nvar AdvancedError = errorEx('AdvancedError', {\n\tfoo: {\n\t\tline: function (value, stack) {\n\t\t\tif (value) {\n\t\t\t\treturn 'bar ' + value;\n\t\t\t}\n\t\t\treturn null;\n\t\t}\n\t}\n}\n\nvar err = new AdvancedError('hello, world');\nerr.foo = 'baz';\nthrow err;\n\n/*\n\tAdvancedError: hello, world\n\t bar baz\n\t at tryReadme() (readme.js:20:1)\n*/\n```\n\n#### `errorEx.line(str)`\nCreates a stack line using a delimiter\n\n> This is a helper function. It is to be used in lieu of writing a value object\n> for `properties` values.\n\n- `str`: The string to create\n - Use the delimiter `%s` to specify where in the string the value should go\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar FileError = errorEx('FileError', {fileName: errorEx.line('in %s')});\n\nvar err = new FileError('problem reading file');\nerr.fileName = '/a/b/c/d/foo.js';\nthrow err;\n\n/*\n\tFileError: problem reading file\n\t in /a/b/c/d/foo.js\n\t at tryReadme() (readme.js:7:1)\n*/\n```\n\n#### `errorEx.append(str)`\nAppends to the `error.message` string\n\n> This is a helper function. It is to be used in lieu of writing a value object\n> for `properties` values.\n\n- `str`: The string to append\n - Use the delimiter `%s` to specify where in the string the value should go\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar SyntaxError = errorEx('SyntaxError', {fileName: errorEx.append('in %s')});\n\nvar err = new SyntaxError('improper indentation');\nerr.fileName = '/a/b/c/d/foo.js';\nthrow err;\n\n/*\n\tSyntaxError: improper indentation in /a/b/c/d/foo.js\n\t at tryReadme() (readme.js:7:1)\n*/\n```\n\n## License\nLicensed under the [MIT License](http://opensource.org/licenses/MIT).\nYou can find a copy of it in [LICENSE](LICENSE).\n# jsesc [](https://travis-ci.org/mathiasbynens/jsesc) [](https://coveralls.io/r/mathiasbynens/jsesc) [](https://gemnasium.com/mathiasbynens/jsesc)\n\nGiven some data, _jsesc_ returns a stringified representation of that data. jsesc is similar to `JSON.stringify()` except:\n\n1. it outputs JavaScript instead of JSON [by default](#json), enabling support for data structures like ES6 maps and sets;\n2. it offers [many options](#api) to customize the output;\n3. its output is ASCII-safe [by default](#minimal), thanks to its use of [escape sequences](https://mathiasbynens.be/notes/javascript-escapes) where needed.\n\nFor any input, jsesc generates the shortest possible valid printable-ASCII-only output. [Here’s an online demo.](https://mothereff.in/js-escapes)\n\njsesc’s output can be used instead of `JSON.stringify`’s to avoid [mojibake](https://en.wikipedia.org/wiki/Mojibake) and other encoding issues, or even to [avoid errors](https://twitter.com/annevk/status/380000829643571200) when passing JSON-formatted data (which may contain U+2028 LINE SEPARATOR, U+2029 PARAGRAPH SEPARATOR, or [lone surrogates](https://esdiscuss.org/topic/code-points-vs-unicode-scalar-values#content-14)) to a JavaScript parser or an UTF-8 encoder.\n\n## Installation\n\nVia [npm](https://www.npmjs.com/):\n\n```bash\nnpm install jsesc\n```\n\nIn [Node.js](https://nodejs.org/):\n\n```js\nconst jsesc = require('jsesc');\n```\n\n## API\n\n### `jsesc(value, options)`\n\nThis function takes a value and returns an escaped version of the value where any characters that are not printable ASCII symbols are escaped using the shortest possible (but valid) [escape sequences for use in JavaScript strings](https://mathiasbynens.be/notes/javascript-escapes). The first supported value type is strings:\n\n```js\njsesc('Ich ♥ Bücher');\n// → 'Ich \\\\u2665 B\\\\xFCcher'\n\njsesc('foo 𝌆 bar');\n// → 'foo \\\\uD834\\\\uDF06 bar'\n```\n\nInstead of a string, the `value` can also be an array, an object, a map, a set, or a buffer. In such cases, `jsesc` returns a stringified version of the value where any characters that are not printable ASCII symbols are escaped in the same way.\n\n```js\n// Escaping an array\njsesc([\n 'Ich ♥ Bücher', 'foo 𝌆 bar'\n]);\n// → '[\\'Ich \\\\u2665 B\\\\xFCcher\\',\\'foo \\\\uD834\\\\uDF06 bar\\']'\n\n// Escaping an object\njsesc({\n 'Ich ♥ Bücher': 'foo 𝌆 bar'\n});\n// → '{\\'Ich \\\\u2665 B\\\\xFCcher\\':\\'foo \\\\uD834\\\\uDF06 bar\\'}'\n```\n\nThe optional `options` argument accepts an object with the following options:\n\n#### `quotes`\n\nThe default value for the `quotes` option is `'single'`. This means that any occurrences of `'` in the input string are escaped as `\\'`, so that the output can be used in a string literal wrapped in single quotes.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.');\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single'\n});\n// → '`Lorem` ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n// → \"`Lorem` ipsum \\\"dolor\\\" sit \\\\'amet\\\\' etc.\"\n```\n\nIf you want to use the output as part of a string literal wrapped in double quotes, set the `quotes` option to `'double'`.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double'\n});\n// → '`Lorem` ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.'\n// → \"`Lorem` ipsum \\\\\\\"dolor\\\\\\\" sit 'amet' etc.\"\n```\n\nIf you want to use the output as part of a template literal (i.e. wrapped in backticks), set the `quotes` option to `'backtick'`.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'backtick'\n});\n// → '\\\\`Lorem\\\\` ipsum \"dolor\" sit \\'amet\\' etc.'\n// → \"\\\\`Lorem\\\\` ipsum \\\"dolor\\\" sit 'amet' etc.\"\n// → `\\\\\\`Lorem\\\\\\` ipsum \"dolor\" sit 'amet' etc.`\n```\n\nThis setting also affects the output for arrays and objects:\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'quotes': 'double'\n});\n// → '{\"Ich \\\\u2665 B\\\\xFCcher\":\"foo \\\\uD834\\\\uDF06 bar\"}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'quotes': 'double'\n});\n// → '[\"Ich \\\\u2665 B\\\\xFCcher\",\"foo \\\\uD834\\\\uDF06 bar\"]'\n```\n\n#### `numbers`\n\nThe default value for the `numbers` option is `'decimal'`. This means that any numeric values are represented using decimal integer literals. Other valid options are `binary`, `octal`, and `hexadecimal`, which result in binary integer literals, octal integer literals, and hexadecimal integer literals, respectively.\n\n```js\njsesc(42, {\n 'numbers': 'binary'\n});\n// → '0b101010'\n\njsesc(42, {\n 'numbers': 'octal'\n});\n// → '0o52'\n\njsesc(42, {\n 'numbers': 'decimal'\n});\n// → '42'\n\njsesc(42, {\n 'numbers': 'hexadecimal'\n});\n// → '0x2A'\n```\n\n#### `wrap`\n\nThe `wrap` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output is a valid JavaScript string literal wrapped in quotes. The type of quotes can be specified through the `quotes` setting.\n\n```js\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single',\n 'wrap': true\n});\n// → '\\'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.\\''\n// → \"\\'Lorem ipsum \\\"dolor\\\" sit \\\\\\'amet\\\\\\' etc.\\'\"\n\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double',\n 'wrap': true\n});\n// → '\"Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.\"'\n// → \"\\\"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit \\'amet\\' etc.\\\"\"\n```\n\n#### `es6`\n\nThe `es6` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, any astral Unicode symbols in the input are escaped using [ECMAScript 6 Unicode code point escape sequences](https://mathiasbynens.be/notes/javascript-escapes#unicode-code-point) instead of using separate escape sequences for each surrogate half. If backwards compatibility with ES5 environments is a concern, don’t enable this setting. If the `json` setting is enabled, the value for the `es6` setting is ignored (as if it was `false`).\n\n```js\n// By default, the `es6` option is disabled:\njsesc('foo 𝌆 bar 💩 baz');\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To explicitly disable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': false\n});\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To enable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': true\n});\n// → 'foo \\\\u{1D306} bar \\\\u{1F4A9} baz'\n```\n\n#### `escapeEverything`\n\nThe `escapeEverything` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, all the symbols in the output are escaped — even printable ASCII symbols.\n\n```js\njsesc('lolwat\"foo\\'bar', {\n 'escapeEverything': true\n});\n// → '\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\\\'\\\\x62\\\\x61\\\\x72'\n// → \"\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\'\\\\x62\\\\x61\\\\x72\"\n```\n\nThis setting also affects the output for string literals within arrays and objects.\n\n#### `minimal`\n\nThe `minimal` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, only a limited set of symbols in the output are escaped:\n\n* U+0000 `\\0`\n* U+0008 `\\b`\n* U+0009 `\\t`\n* U+000A `\\n`\n* U+000C `\\f`\n* U+000D `\\r`\n* U+005C `\\\\`\n* U+2028 `\\u2028`\n* U+2029 `\\u2029`\n* whatever symbol is being used for wrapping string literals (based on [the `quotes` option](#quotes))\n\nNote: with this option enabled, jsesc output is no longer guaranteed to be ASCII-safe.\n\n```js\njsesc('foo\\u2029bar\\nbaz©qux𝌆flops', {\n 'minimal': false\n});\n// → 'foo\\\\u2029bar\\\\nbaz©qux𝌆flops'\n```\n\n#### `isScriptContext`\n\nThe `isScriptContext` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, occurrences of [`</script` and `</style`](https://mathiasbynens.be/notes/etago) in the output are escaped as `<\\/script` and `<\\/style`, and [`<!--`](https://mathiasbynens.be/notes/etago#comment-8) is escaped as `\\x3C!--` (or `\\u003C!--` when the `json` option is enabled). This setting is useful when jsesc’s output ends up as part of a `<script>` or `<style>` element in an HTML document.\n\n```js\njsesc('foo</script>bar', {\n 'isScriptContext': true\n});\n// → 'foo<\\\\/script>bar'\n```\n\n#### `compact`\n\nThe `compact` option takes a boolean value (`true` or `false`), and defaults to `true` (enabled). When enabled, the output for arrays and objects is as compact as possible; it’s not formatted nicely.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': true // this is the default\n});\n// → '{\\'Ich \\u2665 B\\xFCcher\\':\\'foo \\uD834\\uDF06 bar\\'}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false\n});\n// → '[\\n\\t\\'Ich \\u2665 B\\xFCcher\\',\\n\\t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `indent`\n\nThe `indent` option takes a string value, and defaults to `'\\t'`. When the `compact` setting is enabled (`true`), the value of the `indent` option is used to format the output for arrays and objects.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': '\\t' // this is the default\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': ' '\n});\n// → '{\\n \\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false,\n 'indent': ' '\n});\n// → '[\\n \\'Ich \\u2665 B\\xFCcher\\',\\n\\ t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `indentLevel`\n\nThe `indentLevel` option takes a numeric value, and defaults to `0`. It represents the current indentation level, i.e. the number of times the value of [the `indent` option](#indent) is repeated.\n\n```js\njsesc(['a', 'b', 'c'], {\n 'compact': false,\n 'indentLevel': 1\n});\n// → '[\\n\\t\\t\\'a\\',\\n\\t\\t\\'b\\',\\n\\t\\t\\'c\\'\\n\\t]'\n\njsesc(['a', 'b', 'c'], {\n 'compact': false,\n 'indentLevel': 2\n});\n// → '[\\n\\t\\t\\t\\'a\\',\\n\\t\\t\\t\\'b\\',\\n\\t\\t\\t\\'c\\'\\n\\t\\t]'\n```\n\n#### `json`\n\nThe `json` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output is valid JSON. [Hexadecimal character escape sequences](https://mathiasbynens.be/notes/javascript-escapes#hexadecimal) and [the `\\v` or `\\0` escape sequences](https://mathiasbynens.be/notes/javascript-escapes#single) are not used. Setting `json: true` implies `quotes: 'double', wrap: true, es6: false`, although these values can still be overridden if needed — but in such cases, the output won’t be valid JSON anymore.\n\n```js\njsesc('foo\\x00bar\\xFF\\uFFFDbaz', {\n 'json': true\n});\n// → '\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"'\n\njsesc({ 'foo\\x00bar\\xFF\\uFFFDbaz': 'foo\\x00bar\\xFF\\uFFFDbaz' }, {\n 'json': true\n});\n// → '{\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\":\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"}'\n\njsesc([ 'foo\\x00bar\\xFF\\uFFFDbaz', 'foo\\x00bar\\xFF\\uFFFDbaz' ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\",\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"]'\n\n// Values that are acceptable in JSON but aren’t strings, arrays, or object\n// literals can’t be escaped, so they’ll just be preserved:\njsesc([ 'foo\\x00bar', [1, '©', { 'foo': true, 'qux': null }], 42 ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\",[1,\"\\\\u00A9\",{\"foo\":true,\"qux\":null}],42]'\n// Values that aren’t allowed in JSON are run through `JSON.stringify()`:\njsesc([ undefined, -Infinity ], {\n 'json': true\n});\n// → '[null,null]'\n```\n\n**Note:** Using this option on objects or arrays that contain non-string values relies on `JSON.stringify()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](http://bestiejs.github.io/json3/).\n\n#### `lowercaseHex`\n\nThe `lowercaseHex` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, any alphabetical hexadecimal digits in escape sequences as well as any hexadecimal integer literals (see [the `numbers` option](#numbers)) in the output are in lowercase.\n\n```js\njsesc('Ich ♥ Bücher', {\n 'lowercaseHex': true\n});\n// → 'Ich \\\\u2665 B\\\\xfccher'\n// ^^\n\njsesc(42, {\n 'numbers': 'hexadecimal',\n 'lowercaseHex': true\n});\n// → '0x2a'\n// ^^\n```\n\n### `jsesc.version`\n\nA string representing the semantic version number.\n\n### Using the `jsesc` binary\n\nTo use the `jsesc` binary in your shell, simply install jsesc globally using npm:\n\n```bash\nnpm install -g jsesc\n```\n\nAfter that you’re able to escape strings from the command line:\n\n```bash\n$ jsesc 'föo ♥ bår 𝌆 baz'\nf\\xF6o \\u2665 b\\xE5r \\uD834\\uDF06 baz\n```\n\nTo escape arrays or objects containing string values, use the `-o`/`--object` option:\n\n```bash\n$ jsesc --object '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{'f\\xF6o':'\\u2665','b\\xE5r':'\\uD834\\uDF06 baz'}\n```\n\nTo prettify the output in such cases, use the `-p`/`--pretty` option:\n\n```bash\n$ jsesc --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n 'f\\xF6o': '\\u2665',\n 'b\\xE5r': '\\uD834\\uDF06 baz'\n}\n```\n\nFor valid JSON output, use the `-j`/`--json` option:\n\n```bash\n$ jsesc --json --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n \"f\\u00F6o\": \"\\u2665\",\n \"b\\u00E5r\": \"\\uD834\\uDF06 baz\"\n}\n```\n\nRead a local JSON file, escape any non-ASCII symbols, and save the result to a new file:\n\n```bash\n$ jsesc --json --object < data-raw.json > data-escaped.json\n```\n\nOr do the same with an online JSON file:\n\n```bash\n$ curl -sL \"http://git.io/aorKgQ\" | jsesc --json --object > data-escaped.json\n```\n\nSee `jsesc --help` for the full list of options.\n\n## Support\n\nAs of v2.0.0, jsesc supports Node.js v4+ only.\n\nOlder versions (up to jsesc v1.3.0) support Chrome 27, Firefox 3, Safari 4, Opera 10, IE 6, Node.js v6.0.0, Narwhal 0.3.2, RingoJS 0.8-0.11, PhantomJS 1.9.0, and Rhino 1.7RC4. **Note:** Using the `json` option on objects or arrays that contain non-string values relies on `JSON.parse()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](https://bestiejs.github.io/json3/).\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\nThis library is available under the [MIT](https://mths.be/mit) license.\n# Tools\n\n## clang-format\n\nThe clang-format checking tools is designed to check changed lines of code compared to given git-refs.\n\n## Migration Script\n\nThe migration tool is designed to reduce repetitive work in the migration process. However, the script is not aiming to convert every thing for you. There are usually some small fixes and major reconstruction required.\n\n### How To Use\n\nTo run the conversion script, first make sure you have the latest `node-addon-api` in your `node_modules` directory.\n```\nnpm install node-addon-api\n```\n\nThen run the script passing your project directory\n```\nnode ./node_modules/node-addon-api/tools/conversion.js ./\n```\n\nAfter finish, recompile and debug things that are missed by the script.\n\n### Quick Fixes\nHere is the list of things that can be fixed easily.\n 1. Change your methods' return value to void if it doesn't return value to JavaScript.\n 2. Use `.` to access attribute or to invoke member function in Napi::Object instead of `->`.\n 3. `Napi::New(env, value);` to `Napi::[Type]::New(env, value);\n\n### Major Reconstructions\nThe implementation of `Napi::ObjectWrap` is significantly different from NAN's. `Napi::ObjectWrap` takes a pointer to the wrapped object and creates a reference to the wrapped object inside ObjectWrap constructor. `Napi::ObjectWrap` also associates wrapped object's instance methods to Javascript module instead of static methods like NAN.\n\nSo if you use Nan::ObjectWrap in your module, you will need to execute the following steps.\n\n 1. Convert your [ClassName]::New function to a constructor function that takes a `Napi::CallbackInfo`. Declare it as\n```\n[ClassName](const Napi::CallbackInfo& info);\n```\nand define it as\n```\n[ClassName]::[ClassName](const Napi::CallbackInfo& info) : Napi::ObjectWrap<[ClassName]>(info){\n ...\n}\n```\nThis way, the `Napi::ObjectWrap` constructor will be invoked after the object has been instantiated and `Napi::ObjectWrap` can use the `this` pointer to create a reference to the wrapped object.\n\n 2. Move your original constructor code into the new constructor. Delete your original constructor.\n 3. In your class initialization function, associate native methods in the following way.\n```\nNapi::FunctionReference constructor;\n\nvoid [ClassName]::Init(Napi::Env env, Napi::Object exports, Napi::Object module) {\n Napi::HandleScope scope(env);\n Napi::Function ctor = DefineClass(env, \"Canvas\", {\n InstanceMethod<&[ClassName]::Func1>(\"Func1\"),\n InstanceMethod<&[ClassName]::Func2>(\"Func2\"),\n InstanceAccessor<&[ClassName]::ValueGetter>(\"Value\"),\n StaticMethod<&[ClassName]::StaticMethod>(\"MethodName\"),\n InstanceValue(\"Value\", Napi::[Type]::New(env, value)),\n });\n\n constructor = Napi::Persistent(ctor);\n constructor .SuppressDestruct();\n exports.Set(\"[ClassName]\", ctor);\n}\n```\n 4. In function where you need to Unwrap the ObjectWrap in NAN like `[ClassName]* native = Nan::ObjectWrap::Unwrap<[ClassName]>(info.This());`, use `this` pointer directly as the unwrapped object as each ObjectWrap instance is associated with a unique object instance.\n\nIf you still find issues after following this guide, please leave us an issue describing your problem and we will try to resolve it.\nnode-fetch\n==========\n\n[![npm version][npm-image]][npm-url]\n[![build status][travis-image]][travis-url]\n[![coverage status][codecov-image]][codecov-url]\n[![install size][install-size-image]][install-size-url]\n[![Discord][discord-image]][discord-url]\n\nA light-weight module that brings `window.fetch` to Node.js\n\n(We are looking for [v2 maintainers and collaborators](https://github.com/bitinn/node-fetch/issues/567))\n\n[![Backers][opencollective-image]][opencollective-url]\n\n<!-- TOC -->\n\n- [Motivation](#motivation)\n- [Features](#features)\n- [Difference from client-side fetch](#difference-from-client-side-fetch)\n- [Installation](#installation)\n- [Loading and configuring the module](#loading-and-configuring-the-module)\n- [Common Usage](#common-usage)\n - [Plain text or HTML](#plain-text-or-html)\n - [JSON](#json)\n - [Simple Post](#simple-post)\n - [Post with JSON](#post-with-json)\n - [Post with form parameters](#post-with-form-parameters)\n - [Handling exceptions](#handling-exceptions)\n - [Handling client and server errors](#handling-client-and-server-errors)\n- [Advanced Usage](#advanced-usage)\n - [Streams](#streams)\n - [Buffer](#buffer)\n - [Accessing Headers and other Meta data](#accessing-headers-and-other-meta-data)\n - [Extract Set-Cookie Header](#extract-set-cookie-header)\n - [Post data using a file stream](#post-data-using-a-file-stream)\n - [Post with form-data (detect multipart)](#post-with-form-data-detect-multipart)\n - [Request cancellation with AbortSignal](#request-cancellation-with-abortsignal)\n- [API](#api)\n - [fetch(url[, options])](#fetchurl-options)\n - [Options](#options)\n - [Class: Request](#class-request)\n - [Class: Response](#class-response)\n - [Class: Headers](#class-headers)\n - [Interface: Body](#interface-body)\n - [Class: FetchError](#class-fetcherror)\n- [License](#license)\n- [Acknowledgement](#acknowledgement)\n\n<!-- /TOC -->\n\n## Motivation\n\nInstead of implementing `XMLHttpRequest` in Node.js to run browser-specific [Fetch polyfill](https://github.com/github/fetch), why not go from native `http` to `fetch` API directly? Hence, `node-fetch`, minimal code for a `window.fetch` compatible API on Node.js runtime.\n\nSee Matt Andrews' [isomorphic-fetch](https://github.com/matthew-andrews/isomorphic-fetch) or Leonardo Quixada's [cross-fetch](https://github.com/lquixada/cross-fetch) for isomorphic usage (exports `node-fetch` for server-side, `whatwg-fetch` for client-side).\n\n## Features\n\n- Stay consistent with `window.fetch` API.\n- Make conscious trade-off when following [WHATWG fetch spec][whatwg-fetch] and [stream spec](https://streams.spec.whatwg.org/) implementation details, document known differences.\n- Use native promise but allow substituting it with [insert your favorite promise library].\n- Use native Node streams for body on both request and response.\n- Decode content encoding (gzip/deflate) properly and convert string output (such as `res.text()` and `res.json()`) to UTF-8 automatically.\n- Useful extensions such as timeout, redirect limit, response size limit, [explicit errors](ERROR-HANDLING.md) for troubleshooting.\n\n## Difference from client-side fetch\n\n- See [Known Differences](LIMITS.md) for details.\n- If you happen to use a missing feature that `window.fetch` offers, feel free to open an issue.\n- Pull requests are welcomed too!\n\n## Installation\n\nCurrent stable release (`2.x`)\n\n```sh\n$ npm install node-fetch\n```\n\n## Loading and configuring the module\nWe suggest you load the module via `require` until the stabilization of ES modules in node:\n```js\nconst fetch = require('node-fetch');\n```\n\nIf you are using a Promise library other than native, set it through `fetch.Promise`:\n```js\nconst Bluebird = require('bluebird');\n\nfetch.Promise = Bluebird;\n```\n\n## Common Usage\n\nNOTE: The documentation below is up-to-date with `2.x` releases; see the [`1.x` readme](https://github.com/bitinn/node-fetch/blob/1.x/README.md), [changelog](https://github.com/bitinn/node-fetch/blob/1.x/CHANGELOG.md) and [2.x upgrade guide](UPGRADE-GUIDE.md) for the differences.\n\n#### Plain text or HTML\n```js\nfetch('https://github.com/')\n .then(res => res.text())\n .then(body => console.log(body));\n```\n\n#### JSON\n\n```js\n\nfetch('https://api.github.com/users/github')\n .then(res => res.json())\n .then(json => console.log(json));\n```\n\n#### Simple Post\n```js\nfetch('https://httpbin.org/post', { method: 'POST', body: 'a=1' })\n .then(res => res.json()) // expecting a json response\n .then(json => console.log(json));\n```\n\n#### Post with JSON\n\n```js\nconst body = { a: 1 };\n\nfetch('https://httpbin.org/post', {\n method: 'post',\n body: JSON.stringify(body),\n headers: { 'Content-Type': 'application/json' },\n })\n .then(res => res.json())\n .then(json => console.log(json));\n```\n\n#### Post with form parameters\n`URLSearchParams` is available in Node.js as of v7.5.0. See [official documentation](https://nodejs.org/api/url.html#url_class_urlsearchparams) for more usage methods.\n\nNOTE: The `Content-Type` header is only set automatically to `x-www-form-urlencoded` when an instance of `URLSearchParams` is given as such:\n\n```js\nconst { URLSearchParams } = require('url');\n\nconst params = new URLSearchParams();\nparams.append('a', 1);\n\nfetch('https://httpbin.org/post', { method: 'POST', body: params })\n .then(res => res.json())\n .then(json => console.log(json));\n```\n\n#### Handling exceptions\nNOTE: 3xx-5xx responses are *NOT* exceptions and should be handled in `then()`; see the next section for more information.\n\nAdding a catch to the fetch promise chain will catch *all* exceptions, such as errors originating from node core libraries, network errors and operational errors, which are instances of FetchError. See the [error handling document](ERROR-HANDLING.md) for more details.\n\n```js\nfetch('https://domain.invalid/')\n .catch(err => console.error(err));\n```\n\n#### Handling client and server errors\nIt is common to create a helper function to check that the response contains no client (4xx) or server (5xx) error responses:\n\n```js\nfunction checkStatus(res) {\n if (res.ok) { // res.status >= 200 && res.status < 300\n return res;\n } else {\n throw MyCustomError(res.statusText);\n }\n}\n\nfetch('https://httpbin.org/status/400')\n .then(checkStatus)\n .then(res => console.log('will not get here...'))\n```\n\n## Advanced Usage\n\n#### Streams\nThe \"Node.js way\" is to use streams when possible:\n\n```js\nfetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')\n .then(res => {\n const dest = fs.createWriteStream('./octocat.png');\n res.body.pipe(dest);\n });\n```\n\n#### Buffer\nIf you prefer to cache binary data in full, use buffer(). (NOTE: `buffer()` is a `node-fetch`-only API)\n\n```js\nconst fileType = require('file-type');\n\nfetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')\n .then(res => res.buffer())\n .then(buffer => fileType(buffer))\n .then(type => { /* ... */ });\n```\n\n#### Accessing Headers and other Meta data\n```js\nfetch('https://github.com/')\n .then(res => {\n console.log(res.ok);\n console.log(res.status);\n console.log(res.statusText);\n console.log(res.headers.raw());\n console.log(res.headers.get('content-type'));\n });\n```\n\n#### Extract Set-Cookie Header\n\nUnlike browsers, you can access raw `Set-Cookie` headers manually using `Headers.raw()`. This is a `node-fetch` only API.\n\n```js\nfetch(url).then(res => {\n // returns an array of values, instead of a string of comma-separated values\n console.log(res.headers.raw()['set-cookie']);\n});\n```\n\n#### Post data using a file stream\n\n```js\nconst { createReadStream } = require('fs');\n\nconst stream = createReadStream('input.txt');\n\nfetch('https://httpbin.org/post', { method: 'POST', body: stream })\n .then(res => res.json())\n .then(json => console.log(json));\n```\n\n#### Post with form-data (detect multipart)\n\n```js\nconst FormData = require('form-data');\n\nconst form = new FormData();\nform.append('a', 1);\n\nfetch('https://httpbin.org/post', { method: 'POST', body: form })\n .then(res => res.json())\n .then(json => console.log(json));\n\n// OR, using custom headers\n// NOTE: getHeaders() is non-standard API\n\nconst form = new FormData();\nform.append('a', 1);\n\nconst options = {\n method: 'POST',\n body: form,\n headers: form.getHeaders()\n}\n\nfetch('https://httpbin.org/post', options)\n .then(res => res.json())\n .then(json => console.log(json));\n```\n\n#### Request cancellation with AbortSignal\n\n> NOTE: You may cancel streamed requests only on Node >= v8.0.0\n\nYou may cancel requests with `AbortController`. A suggested implementation is [`abort-controller`](https://www.npmjs.com/package/abort-controller).\n\nAn example of timing out a request after 150ms could be achieved as the following:\n\n```js\nimport AbortController from 'abort-controller';\n\nconst controller = new AbortController();\nconst timeout = setTimeout(\n () => { controller.abort(); },\n 150,\n);\n\nfetch(url, { signal: controller.signal })\n .then(res => res.json())\n .then(\n data => {\n useData(data)\n },\n err => {\n if (err.name === 'AbortError') {\n // request was aborted\n }\n },\n )\n .finally(() => {\n clearTimeout(timeout);\n });\n```\n\nSee [test cases](https://github.com/bitinn/node-fetch/blob/master/test/test.js) for more examples.\n\n## API\n\n### fetch(url[, options])\n\n- `url` A string representing the URL for fetching\n- `options` [Options](#fetch-options) for the HTTP(S) request\n- Returns: <code>Promise<[Response](#class-response)></code>\n\nPerform an HTTP(S) fetch.\n\n`url` should be an absolute url, such as `https://example.com/`. A path-relative URL (`/file/under/root`) or protocol-relative URL (`//can-be-http-or-https.com/`) will result in a rejected `Promise`.\n\n<a id=\"fetch-options\"></a>\n### Options\n\nThe default values are shown after each option key.\n\n```js\n{\n // These properties are part of the Fetch Standard\n method: 'GET',\n headers: {}, // request headers. format is the identical to that accepted by the Headers constructor (see below)\n body: null, // request body. can be null, a string, a Buffer, a Blob, or a Node.js Readable stream\n redirect: 'follow', // set to `manual` to extract redirect headers, `error` to reject redirect\n signal: null, // pass an instance of AbortSignal to optionally abort requests\n\n // The following properties are node-fetch extensions\n follow: 20, // maximum redirect count. 0 to not follow redirect\n timeout: 0, // req/res timeout in ms, it resets on redirect. 0 to disable (OS limit applies). Signal is recommended instead.\n compress: true, // support gzip/deflate content encoding. false to disable\n size: 0, // maximum response body size in bytes. 0 to disable\n agent: null // http(s).Agent instance or function that returns an instance (see below)\n}\n```\n\n##### Default Headers\n\nIf no values are set, the following request headers will be sent automatically:\n\nHeader | Value\n------------------- | --------------------------------------------------------\n`Accept-Encoding` | `gzip,deflate` _(when `options.compress === true`)_\n`Accept` | `*/*`\n`Connection` | `close` _(when no `options.agent` is present)_\n`Content-Length` | _(automatically calculated, if possible)_\n`Transfer-Encoding` | `chunked` _(when `req.body` is a stream)_\n`User-Agent` | `node-fetch/1.0 (+https://github.com/bitinn/node-fetch)`\n\nNote: when `body` is a `Stream`, `Content-Length` is not set automatically.\n\n##### Custom Agent\n\nThe `agent` option allows you to specify networking related options which are out of the scope of Fetch, including and not limited to the following:\n\n- Support self-signed certificate\n- Use only IPv4 or IPv6\n- Custom DNS Lookup\n\nSee [`http.Agent`](https://nodejs.org/api/http.html#http_new_agent_options) for more information.\n\nIn addition, the `agent` option accepts a function that returns `http`(s)`.Agent` instance given current [URL](https://nodejs.org/api/url.html), this is useful during a redirection chain across HTTP and HTTPS protocol.\n\n```js\nconst httpAgent = new http.Agent({\n keepAlive: true\n});\nconst httpsAgent = new https.Agent({\n keepAlive: true\n});\n\nconst options = {\n agent: function (_parsedURL) {\n if (_parsedURL.protocol == 'http:') {\n return httpAgent;\n } else {\n return httpsAgent;\n }\n }\n}\n```\n\n<a id=\"class-request\"></a>\n### Class: Request\n\nAn HTTP(S) request containing information about URL, method, headers, and the body. This class implements the [Body](#iface-body) interface.\n\nDue to the nature of Node.js, the following properties are not implemented at this moment:\n\n- `type`\n- `destination`\n- `referrer`\n- `referrerPolicy`\n- `mode`\n- `credentials`\n- `cache`\n- `integrity`\n- `keepalive`\n\nThe following node-fetch extension properties are provided:\n\n- `follow`\n- `compress`\n- `counter`\n- `agent`\n\nSee [options](#fetch-options) for exact meaning of these extensions.\n\n#### new Request(input[, options])\n\n<small>*(spec-compliant)*</small>\n\n- `input` A string representing a URL, or another `Request` (which will be cloned)\n- `options` [Options][#fetch-options] for the HTTP(S) request\n\nConstructs a new `Request` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Request/Request).\n\nIn most cases, directly `fetch(url, options)` is simpler than creating a `Request` object.\n\n<a id=\"class-response\"></a>\n### Class: Response\n\nAn HTTP(S) response. This class implements the [Body](#iface-body) interface.\n\nThe following properties are not implemented in node-fetch at this moment:\n\n- `Response.error()`\n- `Response.redirect()`\n- `type`\n- `trailer`\n\n#### new Response([body[, options]])\n\n<small>*(spec-compliant)*</small>\n\n- `body` A `String` or [`Readable` stream][node-readable]\n- `options` A [`ResponseInit`][response-init] options dictionary\n\nConstructs a new `Response` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Response/Response).\n\nBecause Node.js does not implement service workers (for which this class was designed), one rarely has to construct a `Response` directly.\n\n#### response.ok\n\n<small>*(spec-compliant)*</small>\n\nConvenience property representing if the request ended normally. Will evaluate to true if the response status was greater than or equal to 200 but smaller than 300.\n\n#### response.redirected\n\n<small>*(spec-compliant)*</small>\n\nConvenience property representing if the request has been redirected at least once. Will evaluate to true if the internal redirect counter is greater than 0.\n\n<a id=\"class-headers\"></a>\n### Class: Headers\n\nThis class allows manipulating and iterating over a set of HTTP headers. All methods specified in the [Fetch Standard][whatwg-fetch] are implemented.\n\n#### new Headers([init])\n\n<small>*(spec-compliant)*</small>\n\n- `init` Optional argument to pre-fill the `Headers` object\n\nConstruct a new `Headers` object. `init` can be either `null`, a `Headers` object, an key-value map object or any iterable object.\n\n```js\n// Example adapted from https://fetch.spec.whatwg.org/#example-headers-class\n\nconst meta = {\n 'Content-Type': 'text/xml',\n 'Breaking-Bad': '<3'\n};\nconst headers = new Headers(meta);\n\n// The above is equivalent to\nconst meta = [\n [ 'Content-Type', 'text/xml' ],\n [ 'Breaking-Bad', '<3' ]\n];\nconst headers = new Headers(meta);\n\n// You can in fact use any iterable objects, like a Map or even another Headers\nconst meta = new Map();\nmeta.set('Content-Type', 'text/xml');\nmeta.set('Breaking-Bad', '<3');\nconst headers = new Headers(meta);\nconst copyOfHeaders = new Headers(headers);\n```\n\n<a id=\"iface-body\"></a>\n### Interface: Body\n\n`Body` is an abstract interface with methods that are applicable to both `Request` and `Response` classes.\n\nThe following methods are not yet implemented in node-fetch at this moment:\n\n- `formData()`\n\n#### body.body\n\n<small>*(deviation from spec)*</small>\n\n* Node.js [`Readable` stream][node-readable]\n\nData are encapsulated in the `Body` object. Note that while the [Fetch Standard][whatwg-fetch] requires the property to always be a WHATWG `ReadableStream`, in node-fetch it is a Node.js [`Readable` stream][node-readable].\n\n#### body.bodyUsed\n\n<small>*(spec-compliant)*</small>\n\n* `Boolean`\n\nA boolean property for if this body has been consumed. Per the specs, a consumed body cannot be used again.\n\n#### body.arrayBuffer()\n#### body.blob()\n#### body.json()\n#### body.text()\n\n<small>*(spec-compliant)*</small>\n\n* Returns: <code>Promise</code>\n\nConsume the body and return a promise that will resolve to one of these formats.\n\n#### body.buffer()\n\n<small>*(node-fetch extension)*</small>\n\n* Returns: <code>Promise<Buffer></code>\n\nConsume the body and return a promise that will resolve to a Buffer.\n\n#### body.textConverted()\n\n<small>*(node-fetch extension)*</small>\n\n* Returns: <code>Promise<String></code>\n\nIdentical to `body.text()`, except instead of always converting to UTF-8, encoding sniffing will be performed and text converted to UTF-8 if possible.\n\n(This API requires an optional dependency of the npm package [encoding](https://www.npmjs.com/package/encoding), which you need to install manually. `webpack` users may see [a warning message](https://github.com/bitinn/node-fetch/issues/412#issuecomment-379007792) due to this optional dependency.)\n\n<a id=\"class-fetcherror\"></a>\n### Class: FetchError\n\n<small>*(node-fetch extension)*</small>\n\nAn operational error in the fetching process. See [ERROR-HANDLING.md][] for more info.\n\n<a id=\"class-aborterror\"></a>\n### Class: AbortError\n\n<small>*(node-fetch extension)*</small>\n\nAn Error thrown when the request is aborted in response to an `AbortSignal`'s `abort` event. It has a `name` property of `AbortError`. See [ERROR-HANDLING.MD][] for more info.\n\n## Acknowledgement\n\nThanks to [github/fetch](https://github.com/github/fetch) for providing a solid implementation reference.\n\n`node-fetch` v1 was maintained by [@bitinn](https://github.com/bitinn); v2 was maintained by [@TimothyGu](https://github.com/timothygu), [@bitinn](https://github.com/bitinn) and [@jimmywarting](https://github.com/jimmywarting); v2 readme is written by [@jkantr](https://github.com/jkantr).\n\n## License\n\nMIT\n\n[npm-image]: https://flat.badgen.net/npm/v/node-fetch\n[npm-url]: https://www.npmjs.com/package/node-fetch\n[travis-image]: https://flat.badgen.net/travis/bitinn/node-fetch\n[travis-url]: https://travis-ci.org/bitinn/node-fetch\n[codecov-image]: https://flat.badgen.net/codecov/c/github/bitinn/node-fetch/master\n[codecov-url]: https://codecov.io/gh/bitinn/node-fetch\n[install-size-image]: https://flat.badgen.net/packagephobia/install/node-fetch\n[install-size-url]: https://packagephobia.now.sh/result?p=node-fetch\n[discord-image]: https://img.shields.io/discord/619915844268326952?color=%237289DA&label=Discord&style=flat-square\n[discord-url]: https://discord.gg/Zxbndcm\n[opencollective-image]: https://opencollective.com/node-fetch/backers.svg\n[opencollective-url]: https://opencollective.com/node-fetch\n[whatwg-fetch]: https://fetch.spec.whatwg.org/\n[response-init]: https://fetch.spec.whatwg.org/#responseinit\n[node-readable]: https://nodejs.org/api/stream.html#stream_readable_streams\n[mdn-headers]: https://developer.mozilla.org/en-US/docs/Web/API/Headers\n[LIMITS.md]: https://github.com/bitinn/node-fetch/blob/master/LIMITS.md\n[ERROR-HANDLING.md]: https://github.com/bitinn/node-fetch/blob/master/ERROR-HANDLING.md\n[UPGRADE-GUIDE.md]: https://github.com/bitinn/node-fetch/blob/master/UPGRADE-GUIDE.md\n# whatwg-url\n\nwhatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spec.whatwg.org/). It can be used standalone, but it also exposes a lot of the internal algorithms that are useful for integrating a URL parser into a project like [jsdom](https://github.com/tmpvar/jsdom).\n\n## Current Status\n\nwhatwg-url is currently up to date with the URL spec up to commit [a62223](https://github.com/whatwg/url/commit/a622235308342c9adc7fc2fd1659ff059f7d5e2a).\n\n## API\n\n### The `URL` Constructor\n\nThe main API is the [`URL`](https://url.spec.whatwg.org/#url) export, which follows the spec's behavior in all ways (including e.g. `USVString` conversion). Most consumers of this library will want to use this.\n\n### Low-level URL Standard API\n\nThe following methods are exported for use by places like jsdom that need to implement things like [`HTMLHyperlinkElementUtils`](https://html.spec.whatwg.org/#htmlhyperlinkelementutils). They operate on or return an \"internal URL\" or [\"URL record\"](https://url.spec.whatwg.org/#concept-url) type.\n\n- [URL parser](https://url.spec.whatwg.org/#concept-url-parser): `parseURL(input, { baseURL, encodingOverride })`\n- [Basic URL parser](https://url.spec.whatwg.org/#concept-basic-url-parser): `basicURLParse(input, { baseURL, encodingOverride, url, stateOverride })`\n- [URL serializer](https://url.spec.whatwg.org/#concept-url-serializer): `serializeURL(urlRecord, excludeFragment)`\n- [Host serializer](https://url.spec.whatwg.org/#concept-host-serializer): `serializeHost(hostFromURLRecord)`\n- [Serialize an integer](https://url.spec.whatwg.org/#serialize-an-integer): `serializeInteger(number)`\n- [Origin](https://url.spec.whatwg.org/#concept-url-origin) [serializer](https://html.spec.whatwg.org/multipage/browsers.html#serialization-of-an-origin): `serializeURLOrigin(urlRecord)`\n- [Set the username](https://url.spec.whatwg.org/#set-the-username): `setTheUsername(urlRecord, usernameString)`\n- [Set the password](https://url.spec.whatwg.org/#set-the-password): `setThePassword(urlRecord, passwordString)`\n- [Cannot have a username/password/port](https://url.spec.whatwg.org/#cannot-have-a-username-password-port): `cannotHaveAUsernamePasswordPort(urlRecord)`\n\nThe `stateOverride` parameter is one of the following strings:\n\n- [`\"scheme start\"`](https://url.spec.whatwg.org/#scheme-start-state)\n- [`\"scheme\"`](https://url.spec.whatwg.org/#scheme-state)\n- [`\"no scheme\"`](https://url.spec.whatwg.org/#no-scheme-state)\n- [`\"special relative or authority\"`](https://url.spec.whatwg.org/#special-relative-or-authority-state)\n- [`\"path or authority\"`](https://url.spec.whatwg.org/#path-or-authority-state)\n- [`\"relative\"`](https://url.spec.whatwg.org/#relative-state)\n- [`\"relative slash\"`](https://url.spec.whatwg.org/#relative-slash-state)\n- [`\"special authority slashes\"`](https://url.spec.whatwg.org/#special-authority-slashes-state)\n- [`\"special authority ignore slashes\"`](https://url.spec.whatwg.org/#special-authority-ignore-slashes-state)\n- [`\"authority\"`](https://url.spec.whatwg.org/#authority-state)\n- [`\"host\"`](https://url.spec.whatwg.org/#host-state)\n- [`\"hostname\"`](https://url.spec.whatwg.org/#hostname-state)\n- [`\"port\"`](https://url.spec.whatwg.org/#port-state)\n- [`\"file\"`](https://url.spec.whatwg.org/#file-state)\n- [`\"file slash\"`](https://url.spec.whatwg.org/#file-slash-state)\n- [`\"file host\"`](https://url.spec.whatwg.org/#file-host-state)\n- [`\"path start\"`](https://url.spec.whatwg.org/#path-start-state)\n- [`\"path\"`](https://url.spec.whatwg.org/#path-state)\n- [`\"cannot-be-a-base-URL path\"`](https://url.spec.whatwg.org/#cannot-be-a-base-url-path-state)\n- [`\"query\"`](https://url.spec.whatwg.org/#query-state)\n- [`\"fragment\"`](https://url.spec.whatwg.org/#fragment-state)\n\nThe URL record type has the following API:\n\n- [`scheme`](https://url.spec.whatwg.org/#concept-url-scheme)\n- [`username`](https://url.spec.whatwg.org/#concept-url-username)\n- [`password`](https://url.spec.whatwg.org/#concept-url-password)\n- [`host`](https://url.spec.whatwg.org/#concept-url-host)\n- [`port`](https://url.spec.whatwg.org/#concept-url-port)\n- [`path`](https://url.spec.whatwg.org/#concept-url-path) (as an array)\n- [`query`](https://url.spec.whatwg.org/#concept-url-query)\n- [`fragment`](https://url.spec.whatwg.org/#concept-url-fragment)\n- [`cannotBeABaseURL`](https://url.spec.whatwg.org/#url-cannot-be-a-base-url-flag) (as a boolean)\n\nThese properties should be treated with care, as in general changing them will cause the URL record to be in an inconsistent state until the appropriate invocation of `basicURLParse` is used to fix it up. You can see examples of this in the URL Standard, where there are many step sequences like \"4. Set context object’s url’s fragment to the empty string. 5. Basic URL parse _input_ with context object’s url as _url_ and fragment state as _state override_.\" In between those two steps, a URL record is in an unusable state.\n\nThe return value of \"failure\" in the spec is represented by the string `\"failure\"`. That is, functions like `parseURL` and `basicURLParse` can return _either_ a URL record _or_ the string `\"failure\"`.\n# Hello NEAR Contract\n\nThe smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.\n\n```ts\n@NearBindgen({})\nclass HelloNear {\n greeting: string = \"Hello\";\n\n @view // This method is read-only and can be called for free\n get_greeting(): string {\n return this.greeting;\n }\n\n @call // This method changes the state, for which it cost gas\n set_greeting({ greeting }: { greeting: string }): void {\n // Record a log permanently to the blockchain!\n near.log(`Saving greeting ${greeting}`);\n this.greeting = greeting;\n }\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\nnpm run deploy\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\n<br />\n\n## 2. Retrieve the Greeting\n\n`get_greeting` is a read-only method (aka `view` method).\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\n# Use near-cli to get the greeting\nnear view <dev-account> get_greeting\n```\n\n<br />\n\n## 3. Store a New Greeting\n`set_greeting` changes the contract's state, for which it is a `call` method.\n\n`Call` methods can only be invoked using a NEAR account, since the account needs to pay GAS for the transaction.\n\n```bash\n# Use near-cli to set a new greeting\nnear call <dev-account> set_greeting '{\"greeting\":\"howdy\"}' --accountId <dev-account>\n```\n\n**Tip:** If you would like to call `set_greeting` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n# minipass\n\nA _very_ minimal implementation of a [PassThrough\nstream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)\n\n[It's very\nfast](https://docs.google.com/spreadsheets/d/1oObKSrVwLX_7Ut4Z6g3fZW-AX1j1-k6w-cDsrkaSbHM/edit#gid=0)\nfor objects, strings, and buffers.\n\nSupports `pipe()`ing (including multi-`pipe()` and backpressure transmission),\nbuffering data until either a `data` event handler or `pipe()` is added (so\nyou don't lose the first chunk), and most other cases where PassThrough is\na good idea.\n\nThere is a `read()` method, but it's much more efficient to consume data\nfrom this stream via `'data'` events or by calling `pipe()` into some other\nstream. Calling `read()` requires the buffer to be flattened in some\ncases, which requires copying memory.\n\nIf you set `objectMode: true` in the options, then whatever is written will\nbe emitted. Otherwise, it'll do a minimal amount of Buffer copying to\nensure proper Streams semantics when `read(n)` is called.\n\n`objectMode` can also be set by doing `stream.objectMode = true`, or by\nwriting any non-string/non-buffer data. `objectMode` cannot be set to\nfalse once it is set.\n\nThis is not a `through` or `through2` stream. It doesn't transform the\ndata, it just passes it right through. If you want to transform the data,\nextend the class, and override the `write()` method. Once you're done\ntransforming the data however you want, call `super.write()` with the\ntransform output.\n\nFor some examples of streams that extend Minipass in various ways, check\nout:\n\n- [minizlib](http://npm.im/minizlib)\n- [fs-minipass](http://npm.im/fs-minipass)\n- [tar](http://npm.im/tar)\n- [minipass-collect](http://npm.im/minipass-collect)\n- [minipass-flush](http://npm.im/minipass-flush)\n- [minipass-pipeline](http://npm.im/minipass-pipeline)\n- [tap](http://npm.im/tap)\n- [tap-parser](http://npm.im/tap-parser)\n- [treport](http://npm.im/treport)\n- [minipass-fetch](http://npm.im/minipass-fetch)\n- [pacote](http://npm.im/pacote)\n- [make-fetch-happen](http://npm.im/make-fetch-happen)\n- [cacache](http://npm.im/cacache)\n- [ssri](http://npm.im/ssri)\n- [npm-registry-fetch](http://npm.im/npm-registry-fetch)\n- [minipass-json-stream](http://npm.im/minipass-json-stream)\n- [minipass-sized](http://npm.im/minipass-sized)\n\n## Differences from Node.js Streams\n\nThere are several things that make Minipass streams different from (and in\nsome ways superior to) Node.js core streams.\n\nPlease read these caveats if you are familiar with node-core streams and\nintend to use Minipass streams in your programs.\n\nYou can avoid most of these differences entirely (for a very\nsmall performance penalty) by setting `{async: true}` in the\nconstructor options.\n\n### Timing\n\nMinipass streams are designed to support synchronous use-cases. Thus, data\nis emitted as soon as it is available, always. It is buffered until read,\nbut no longer. Another way to look at it is that Minipass streams are\nexactly as synchronous as the logic that writes into them.\n\nThis can be surprising if your code relies on `PassThrough.write()` always\nproviding data on the next tick rather than the current one, or being able\nto call `resume()` and not have the entire buffer disappear immediately.\n\nHowever, without this synchronicity guarantee, there would be no way for\nMinipass to achieve the speeds it does, or support the synchronous use\ncases that it does. Simply put, waiting takes time.\n\nThis non-deferring approach makes Minipass streams much easier to reason\nabout, especially in the context of Promises and other flow-control\nmechanisms.\n\nExample:\n\n```js\nconst Minipass = require('minipass')\nconst stream = new Minipass({ async: true })\nstream.on('data', () => console.log('data event'))\nconsole.log('before write')\nstream.write('hello')\nconsole.log('after write')\n// output:\n// before write\n// data event\n// after write\n```\n\n### Exception: Async Opt-In\n\nIf you wish to have a Minipass stream with behavior that more\nclosely mimics Node.js core streams, you can set the stream in\nasync mode either by setting `async: true` in the constructor\noptions, or by setting `stream.async = true` later on.\n\n```js\nconst Minipass = require('minipass')\nconst asyncStream = new Minipass({ async: true })\nasyncStream.on('data', () => console.log('data event'))\nconsole.log('before write')\nasyncStream.write('hello')\nconsole.log('after write')\n// output:\n// before write\n// after write\n// data event <-- this is deferred until the next tick\n```\n\nSwitching _out_ of async mode is unsafe, as it could cause data\ncorruption, and so is not enabled. Example:\n\n```js\nconst Minipass = require('minipass')\nconst stream = new Minipass({ encoding: 'utf8' })\nstream.on('data', chunk => console.log(chunk))\nstream.async = true\nconsole.log('before writes')\nstream.write('hello')\nsetStreamSyncAgainSomehow(stream) // <-- this doesn't actually exist!\nstream.write('world')\nconsole.log('after writes')\n// hypothetical output would be:\n// before writes\n// world\n// after writes\n// hello\n// NOT GOOD!\n```\n\nTo avoid this problem, once set into async mode, any attempt to\nmake the stream sync again will be ignored.\n\n```js\nconst Minipass = require('minipass')\nconst stream = new Minipass({ encoding: 'utf8' })\nstream.on('data', chunk => console.log(chunk))\nstream.async = true\nconsole.log('before writes')\nstream.write('hello')\nstream.async = false // <-- no-op, stream already async\nstream.write('world')\nconsole.log('after writes')\n// actual output:\n// before writes\n// after writes\n// hello\n// world\n```\n\n### No High/Low Water Marks\n\nNode.js core streams will optimistically fill up a buffer, returning `true`\non all writes until the limit is hit, even if the data has nowhere to go.\nThen, they will not attempt to draw more data in until the buffer size dips\nbelow a minimum value.\n\nMinipass streams are much simpler. The `write()` method will return `true`\nif the data has somewhere to go (which is to say, given the timing\nguarantees, that the data is already there by the time `write()` returns).\n\nIf the data has nowhere to go, then `write()` returns false, and the data\nsits in a buffer, to be drained out immediately as soon as anyone consumes\nit.\n\nSince nothing is ever buffered unnecessarily, there is much less\ncopying data, and less bookkeeping about buffer capacity levels.\n\n### Hazards of Buffering (or: Why Minipass Is So Fast)\n\nSince data written to a Minipass stream is immediately written all the way\nthrough the pipeline, and `write()` always returns true/false based on\nwhether the data was fully flushed, backpressure is communicated\nimmediately to the upstream caller. This minimizes buffering.\n\nConsider this case:\n\n```js\nconst {PassThrough} = require('stream')\nconst p1 = new PassThrough({ highWaterMark: 1024 })\nconst p2 = new PassThrough({ highWaterMark: 1024 })\nconst p3 = new PassThrough({ highWaterMark: 1024 })\nconst p4 = new PassThrough({ highWaterMark: 1024 })\n\np1.pipe(p2).pipe(p3).pipe(p4)\np4.on('data', () => console.log('made it through'))\n\n// this returns false and buffers, then writes to p2 on next tick (1)\n// p2 returns false and buffers, pausing p1, then writes to p3 on next tick (2)\n// p3 returns false and buffers, pausing p2, then writes to p4 on next tick (3)\n// p4 returns false and buffers, pausing p3, then emits 'data' and 'drain'\n// on next tick (4)\n// p3 sees p4's 'drain' event, and calls resume(), emitting 'resume' and\n// 'drain' on next tick (5)\n// p2 sees p3's 'drain', calls resume(), emits 'resume' and 'drain' on next tick (6)\n// p1 sees p2's 'drain', calls resume(), emits 'resume' and 'drain' on next\n// tick (7)\n\np1.write(Buffer.alloc(2048)) // returns false\n```\n\nAlong the way, the data was buffered and deferred at each stage, and\nmultiple event deferrals happened, for an unblocked pipeline where it was\nperfectly safe to write all the way through!\n\nFurthermore, setting a `highWaterMark` of `1024` might lead someone reading\nthe code to think an advisory maximum of 1KiB is being set for the\npipeline. However, the actual advisory buffering level is the _sum_ of\n`highWaterMark` values, since each one has its own bucket.\n\nConsider the Minipass case:\n\n```js\nconst m1 = new Minipass()\nconst m2 = new Minipass()\nconst m3 = new Minipass()\nconst m4 = new Minipass()\n\nm1.pipe(m2).pipe(m3).pipe(m4)\nm4.on('data', () => console.log('made it through'))\n\n// m1 is flowing, so it writes the data to m2 immediately\n// m2 is flowing, so it writes the data to m3 immediately\n// m3 is flowing, so it writes the data to m4 immediately\n// m4 is flowing, so it fires the 'data' event immediately, returns true\n// m4's write returned true, so m3 is still flowing, returns true\n// m3's write returned true, so m2 is still flowing, returns true\n// m2's write returned true, so m1 is still flowing, returns true\n// No event deferrals or buffering along the way!\n\nm1.write(Buffer.alloc(2048)) // returns true\n```\n\nIt is extremely unlikely that you _don't_ want to buffer any data written,\nor _ever_ buffer data that can be flushed all the way through. Neither\nnode-core streams nor Minipass ever fail to buffer written data, but\nnode-core streams do a lot of unnecessary buffering and pausing.\n\nAs always, the faster implementation is the one that does less stuff and\nwaits less time to do it.\n\n### Immediately emit `end` for empty streams (when not paused)\n\nIf a stream is not paused, and `end()` is called before writing any data\ninto it, then it will emit `end` immediately.\n\nIf you have logic that occurs on the `end` event which you don't want to\npotentially happen immediately (for example, closing file descriptors,\nmoving on to the next entry in an archive parse stream, etc.) then be sure\nto call `stream.pause()` on creation, and then `stream.resume()` once you\nare ready to respond to the `end` event.\n\nHowever, this is _usually_ not a problem because:\n\n### Emit `end` When Asked\n\nOne hazard of immediately emitting `'end'` is that you may not yet have had\na chance to add a listener. In order to avoid this hazard, Minipass\nstreams safely re-emit the `'end'` event if a new listener is added after\n`'end'` has been emitted.\n\nIe, if you do `stream.on('end', someFunction)`, and the stream has already\nemitted `end`, then it will call the handler right away. (You can think of\nthis somewhat like attaching a new `.then(fn)` to a previously-resolved\nPromise.)\n\nTo prevent calling handlers multiple times who would not expect multiple\nends to occur, all listeners are removed from the `'end'` event whenever it\nis emitted.\n\n### Emit `error` When Asked\n\nThe most recent error object passed to the `'error'` event is\nstored on the stream. If a new `'error'` event handler is added,\nand an error was previously emitted, then the event handler will\nbe called immediately (or on `process.nextTick` in the case of\nasync streams).\n\nThis makes it much more difficult to end up trying to interact\nwith a broken stream, if the error handler is added after an\nerror was previously emitted.\n\n### Impact of \"immediate flow\" on Tee-streams\n\nA \"tee stream\" is a stream piping to multiple destinations:\n\n```js\nconst tee = new Minipass()\nt.pipe(dest1)\nt.pipe(dest2)\nt.write('foo') // goes to both destinations\n```\n\nSince Minipass streams _immediately_ process any pending data through the\npipeline when a new pipe destination is added, this can have surprising\neffects, especially when a stream comes in from some other function and may\nor may not have data in its buffer.\n\n```js\n// WARNING! WILL LOSE DATA!\nconst src = new Minipass()\nsrc.write('foo')\nsrc.pipe(dest1) // 'foo' chunk flows to dest1 immediately, and is gone\nsrc.pipe(dest2) // gets nothing!\n```\n\nOne solution is to create a dedicated tee-stream junction that pipes to\nboth locations, and then pipe to _that_ instead.\n\n```js\n// Safe example: tee to both places\nconst src = new Minipass()\nsrc.write('foo')\nconst tee = new Minipass()\ntee.pipe(dest1)\ntee.pipe(dest2)\nsrc.pipe(tee) // tee gets 'foo', pipes to both locations\n```\n\nThe same caveat applies to `on('data')` event listeners. The first one\nadded will _immediately_ receive all of the data, leaving nothing for the\nsecond:\n\n```js\n// WARNING! WILL LOSE DATA!\nconst src = new Minipass()\nsrc.write('foo')\nsrc.on('data', handler1) // receives 'foo' right away\nsrc.on('data', handler2) // nothing to see here!\n```\n\nUsing a dedicated tee-stream can be used in this case as well:\n\n```js\n// Safe example: tee to both data handlers\nconst src = new Minipass()\nsrc.write('foo')\nconst tee = new Minipass()\ntee.on('data', handler1)\ntee.on('data', handler2)\nsrc.pipe(tee)\n```\n\nAll of the hazards in this section are avoided by setting `{\nasync: true }` in the Minipass constructor, or by setting\n`stream.async = true` afterwards. Note that this does add some\noverhead, so should only be done in cases where you are willing\nto lose a bit of performance in order to avoid having to refactor\nprogram logic.\n\n## USAGE\n\nIt's a stream! Use it like a stream and it'll most likely do what you\nwant.\n\n```js\nconst Minipass = require('minipass')\nconst mp = new Minipass(options) // optional: { encoding, objectMode }\nmp.write('foo')\nmp.pipe(someOtherStream)\nmp.end('bar')\n```\n\n### OPTIONS\n\n* `encoding` How would you like the data coming _out_ of the stream to be\n encoded? Accepts any values that can be passed to `Buffer.toString()`.\n* `objectMode` Emit data exactly as it comes in. This will be flipped on\n by default if you write() something other than a string or Buffer at any\n point. Setting `objectMode: true` will prevent setting any encoding\n value.\n* `async` Defaults to `false`. Set to `true` to defer data\n emission until next tick. This reduces performance slightly,\n but makes Minipass streams use timing behavior closer to Node\n core streams. See [Timing](#timing) for more details.\n\n### API\n\nImplements the user-facing portions of Node.js's `Readable` and `Writable`\nstreams.\n\n### Methods\n\n* `write(chunk, [encoding], [callback])` - Put data in. (Note that, in the\n base Minipass class, the same data will come out.) Returns `false` if\n the stream will buffer the next write, or true if it's still in \"flowing\"\n mode.\n* `end([chunk, [encoding]], [callback])` - Signal that you have no more\n data to write. This will queue an `end` event to be fired when all the\n data has been consumed.\n* `setEncoding(encoding)` - Set the encoding for data coming of the stream.\n This can only be done once.\n* `pause()` - No more data for a while, please. This also prevents `end`\n from being emitted for empty streams until the stream is resumed.\n* `resume()` - Resume the stream. If there's data in the buffer, it is all\n discarded. Any buffered events are immediately emitted.\n* `pipe(dest)` - Send all output to the stream provided. When\n data is emitted, it is immediately written to any and all pipe\n destinations. (Or written on next tick in `async` mode.)\n* `unpipe(dest)` - Stop piping to the destination stream. This\n is immediate, meaning that any asynchronously queued data will\n _not_ make it to the destination when running in `async` mode.\n * `options.end` - Boolean, end the destination stream when\n the source stream ends. Default `true`.\n * `options.proxyErrors` - Boolean, proxy `error` events from\n the source stream to the destination stream. Note that\n errors are _not_ proxied after the pipeline terminates,\n either due to the source emitting `'end'` or manually\n unpiping with `src.unpipe(dest)`. Default `false`.\n* `on(ev, fn)`, `emit(ev, fn)` - Minipass streams are EventEmitters. Some\n events are given special treatment, however. (See below under \"events\".)\n* `promise()` - Returns a Promise that resolves when the stream emits\n `end`, or rejects if the stream emits `error`.\n* `collect()` - Return a Promise that resolves on `end` with an array\n containing each chunk of data that was emitted, or rejects if the stream\n emits `error`. Note that this consumes the stream data.\n* `concat()` - Same as `collect()`, but concatenates the data into a single\n Buffer object. Will reject the returned promise if the stream is in\n objectMode, or if it goes into objectMode by the end of the data.\n* `read(n)` - Consume `n` bytes of data out of the buffer. If `n` is not\n provided, then consume all of it. If `n` bytes are not available, then\n it returns null. **Note** consuming streams in this way is less\n efficient, and can lead to unnecessary Buffer copying.\n* `destroy([er])` - Destroy the stream. If an error is provided, then an\n `'error'` event is emitted. If the stream has a `close()` method, and\n has not emitted a `'close'` event yet, then `stream.close()` will be\n called. Any Promises returned by `.promise()`, `.collect()` or\n `.concat()` will be rejected. After being destroyed, writing to the\n stream will emit an error. No more data will be emitted if the stream is\n destroyed, even if it was previously buffered.\n\n### Properties\n\n* `bufferLength` Read-only. Total number of bytes buffered, or in the case\n of objectMode, the total number of objects.\n* `encoding` The encoding that has been set. (Setting this is equivalent\n to calling `setEncoding(enc)` and has the same prohibition against\n setting multiple times.)\n* `flowing` Read-only. Boolean indicating whether a chunk written to the\n stream will be immediately emitted.\n* `emittedEnd` Read-only. Boolean indicating whether the end-ish events\n (ie, `end`, `prefinish`, `finish`) have been emitted. Note that\n listening on any end-ish event will immediateyl re-emit it if it has\n already been emitted.\n* `writable` Whether the stream is writable. Default `true`. Set to\n `false` when `end()`\n* `readable` Whether the stream is readable. Default `true`.\n* `buffer` A [yallist](http://npm.im/yallist) linked list of chunks written\n to the stream that have not yet been emitted. (It's probably a bad idea\n to mess with this.)\n* `pipes` A [yallist](http://npm.im/yallist) linked list of streams that\n this stream is piping into. (It's probably a bad idea to mess with\n this.)\n* `destroyed` A getter that indicates whether the stream was destroyed.\n* `paused` True if the stream has been explicitly paused, otherwise false.\n* `objectMode` Indicates whether the stream is in `objectMode`. Once set\n to `true`, it cannot be set to `false`.\n\n### Events\n\n* `data` Emitted when there's data to read. Argument is the data to read.\n This is never emitted while not flowing. If a listener is attached, that\n will resume the stream.\n* `end` Emitted when there's no more data to read. This will be emitted\n immediately for empty streams when `end()` is called. If a listener is\n attached, and `end` was already emitted, then it will be emitted again.\n All listeners are removed when `end` is emitted.\n* `prefinish` An end-ish event that follows the same logic as `end` and is\n emitted in the same conditions where `end` is emitted. Emitted after\n `'end'`.\n* `finish` An end-ish event that follows the same logic as `end` and is\n emitted in the same conditions where `end` is emitted. Emitted after\n `'prefinish'`.\n* `close` An indication that an underlying resource has been released.\n Minipass does not emit this event, but will defer it until after `end`\n has been emitted, since it throws off some stream libraries otherwise.\n* `drain` Emitted when the internal buffer empties, and it is again\n suitable to `write()` into the stream.\n* `readable` Emitted when data is buffered and ready to be read by a\n consumer.\n* `resume` Emitted when stream changes state from buffering to flowing\n mode. (Ie, when `resume` is called, `pipe` is called, or a `data` event\n listener is added.)\n\n### Static Methods\n\n* `Minipass.isStream(stream)` Returns `true` if the argument is a stream,\n and false otherwise. To be considered a stream, the object must be\n either an instance of Minipass, or an EventEmitter that has either a\n `pipe()` method, or both `write()` and `end()` methods. (Pretty much any\n stream in node-land will return `true` for this.)\n\n## EXAMPLES\n\nHere are some examples of things you can do with Minipass streams.\n\n### simple \"are you done yet\" promise\n\n```js\nmp.promise().then(() => {\n // stream is finished\n}, er => {\n // stream emitted an error\n})\n```\n\n### collecting\n\n```js\nmp.collect().then(all => {\n // all is an array of all the data emitted\n // encoding is supported in this case, so\n // so the result will be a collection of strings if\n // an encoding is specified, or buffers/objects if not.\n //\n // In an async function, you may do\n // const data = await stream.collect()\n})\n```\n\n### collecting into a single blob\n\nThis is a bit slower because it concatenates the data into one chunk for\nyou, but if you're going to do it yourself anyway, it's convenient this\nway:\n\n```js\nmp.concat().then(onebigchunk => {\n // onebigchunk is a string if the stream\n // had an encoding set, or a buffer otherwise.\n})\n```\n\n### iteration\n\nYou can iterate over streams synchronously or asynchronously in platforms\nthat support it.\n\nSynchronous iteration will end when the currently available data is\nconsumed, even if the `end` event has not been reached. In string and\nbuffer mode, the data is concatenated, so unless multiple writes are\noccurring in the same tick as the `read()`, sync iteration loops will\ngenerally only have a single iteration.\n\nTo consume chunks in this way exactly as they have been written, with no\nflattening, create the stream with the `{ objectMode: true }` option.\n\n```js\nconst mp = new Minipass({ objectMode: true })\nmp.write('a')\nmp.write('b')\nfor (let letter of mp) {\n console.log(letter) // a, b\n}\nmp.write('c')\nmp.write('d')\nfor (let letter of mp) {\n console.log(letter) // c, d\n}\nmp.write('e')\nmp.end()\nfor (let letter of mp) {\n console.log(letter) // e\n}\nfor (let letter of mp) {\n console.log(letter) // nothing\n}\n```\n\nAsynchronous iteration will continue until the end event is reached,\nconsuming all of the data.\n\n```js\nconst mp = new Minipass({ encoding: 'utf8' })\n\n// some source of some data\nlet i = 5\nconst inter = setInterval(() => {\n if (i-- > 0)\n mp.write(Buffer.from('foo\\n', 'utf8'))\n else {\n mp.end()\n clearInterval(inter)\n }\n}, 100)\n\n// consume the data with asynchronous iteration\nasync function consume () {\n for await (let chunk of mp) {\n console.log(chunk)\n }\n return 'ok'\n}\n\nconsume().then(res => console.log(res))\n// logs `foo\\n` 5 times, and then `ok`\n```\n\n### subclass that `console.log()`s everything written into it\n\n```js\nclass Logger extends Minipass {\n write (chunk, encoding, callback) {\n console.log('WRITE', chunk, encoding)\n return super.write(chunk, encoding, callback)\n }\n end (chunk, encoding, callback) {\n console.log('END', chunk, encoding)\n return super.end(chunk, encoding, callback)\n }\n}\n\nsomeSource.pipe(new Logger()).pipe(someDest)\n```\n\n### same thing, but using an inline anonymous class\n\n```js\n// js classes are fun\nsomeSource\n .pipe(new (class extends Minipass {\n emit (ev, ...data) {\n // let's also log events, because debugging some weird thing\n console.log('EMIT', ev)\n return super.emit(ev, ...data)\n }\n write (chunk, encoding, callback) {\n console.log('WRITE', chunk, encoding)\n return super.write(chunk, encoding, callback)\n }\n end (chunk, encoding, callback) {\n console.log('END', chunk, encoding)\n return super.end(chunk, encoding, callback)\n }\n }))\n .pipe(someDest)\n```\n\n### subclass that defers 'end' for some reason\n\n```js\nclass SlowEnd extends Minipass {\n emit (ev, ...args) {\n if (ev === 'end') {\n console.log('going to end, hold on a sec')\n setTimeout(() => {\n console.log('ok, ready to end now')\n super.emit('end', ...args)\n }, 100)\n } else {\n return super.emit(ev, ...args)\n }\n }\n}\n```\n\n### transform that creates newline-delimited JSON\n\n```js\nclass NDJSONEncode extends Minipass {\n write (obj, cb) {\n try {\n // JSON.stringify can throw, emit an error on that\n return super.write(JSON.stringify(obj) + '\\n', 'utf8', cb)\n } catch (er) {\n this.emit('error', er)\n }\n }\n end (obj, cb) {\n if (typeof obj === 'function') {\n cb = obj\n obj = undefined\n }\n if (obj !== undefined) {\n this.write(obj)\n }\n return super.end(cb)\n }\n}\n```\n\n### transform that parses newline-delimited JSON\n\n```js\nclass NDJSONDecode extends Minipass {\n constructor (options) {\n // always be in object mode, as far as Minipass is concerned\n super({ objectMode: true })\n this._jsonBuffer = ''\n }\n write (chunk, encoding, cb) {\n if (typeof chunk === 'string' &&\n typeof encoding === 'string' &&\n encoding !== 'utf8') {\n chunk = Buffer.from(chunk, encoding).toString()\n } else if (Buffer.isBuffer(chunk))\n chunk = chunk.toString()\n }\n if (typeof encoding === 'function') {\n cb = encoding\n }\n const jsonData = (this._jsonBuffer + chunk).split('\\n')\n this._jsonBuffer = jsonData.pop()\n for (let i = 0; i < jsonData.length; i++) {\n try {\n // JSON.parse can throw, emit an error on that\n super.write(JSON.parse(jsonData[i]))\n } catch (er) {\n this.emit('error', er)\n continue\n }\n }\n if (cb)\n cb()\n }\n}\n```\nAn ini format parser and serializer for node.\n\nSections are treated as nested objects. Items before the first\nheading are saved on the object directly.\n\n## Usage\n\nConsider an ini-file `config.ini` that looks like this:\n\n ; this comment is being ignored\n scope = global\n\n [database]\n user = dbuser\n password = dbpassword\n database = use_this_database\n\n [paths.default]\n datadir = /var/lib/data\n array[] = first value\n array[] = second value\n array[] = third value\n\nYou can read, manipulate and write the ini-file like so:\n\n var fs = require('fs')\n , ini = require('ini')\n\n var config = ini.parse(fs.readFileSync('./config.ini', 'utf-8'))\n\n config.scope = 'local'\n config.database.database = 'use_another_database'\n config.paths.default.tmpdir = '/tmp'\n delete config.paths.default.datadir\n config.paths.default.array.push('fourth value')\n\n fs.writeFileSync('./config_modified.ini', ini.stringify(config, { section: 'section' }))\n\nThis will result in a file called `config_modified.ini` being written\nto the filesystem with the following content:\n\n [section]\n scope=local\n [section.database]\n user=dbuser\n password=dbpassword\n database=use_another_database\n [section.paths.default]\n tmpdir=/tmp\n array[]=first value\n array[]=second value\n array[]=third value\n array[]=fourth value\n\n## API\n\n### decode(inistring)\n\nDecode the ini-style formatted `inistring` into a nested object.\n\n### parse(inistring)\n\nAlias for `decode(inistring)`\n\n### encode(object, [options])\n\nEncode the object `object` into an ini-style formatted string. If the\noptional parameter `section` is given, then all top-level properties\nof the object are put into this section and the `section`-string is\nprepended to all sub-sections, see the usage example above.\n\nThe `options` object may contain the following:\n\n* `section` A string which will be the first `section` in the encoded\n ini data. Defaults to none.\n* `whitespace` Boolean to specify whether to put whitespace around the\n `=` character. By default, whitespace is omitted, to be friendly to\n some persnickety old parsers that don't tolerate it well. But some\n find that it's more human-readable and pretty with the whitespace.\n\nFor backwards compatibility reasons, if a `string` options is passed\nin, then it is assumed to be the `section` value.\n\n### stringify(object, [options])\n\nAlias for `encode(object, [options])`\n\n### safe(val)\n\nEscapes the string `val` such that it is safe to be used as a key or\nvalue in an ini-file. Basically escapes quotes. For example\n\n ini.safe('\"unsafe string\"')\n\nwould result in\n\n \"\\\"unsafe string\\\"\"\n\n### unsafe(val)\n\nUnescapes the string `val`\n# convert-source-map [![Build Status][ci-image]][ci-url]\n\nConverts a source-map from/to different formats and allows adding/changing properties.\n\n```js\nvar convert = require('convert-source-map');\n\nvar json = convert\n .fromComment('//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYnVpbGQvZm9vLm1pbi5qcyIsInNvdXJjZXMiOlsic3JjL2Zvby5qcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')\n .toJSON();\n\nvar modified = convert\n .fromComment('//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYnVpbGQvZm9vLm1pbi5qcyIsInNvdXJjZXMiOlsic3JjL2Zvby5qcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')\n .setProperty('sources', [ 'SRC/FOO.JS' ])\n .toJSON();\n\nconsole.log(json);\nconsole.log(modified);\n```\n\n```json\n{\"version\":3,\"file\":\"build/foo.min.js\",\"sources\":[\"src/foo.js\"],\"names\":[],\"mappings\":\"AAAA\",\"sourceRoot\":\"/\"}\n{\"version\":3,\"file\":\"build/foo.min.js\",\"sources\":[\"SRC/FOO.JS\"],\"names\":[],\"mappings\":\"AAAA\",\"sourceRoot\":\"/\"}\n```\n\n## API\n\n### fromObject(obj)\n\nReturns source map converter from given object.\n\n### fromJSON(json)\n\nReturns source map converter from given json string.\n\n### fromBase64(base64)\n\nReturns source map converter from given base64 encoded json string.\n\n### fromComment(comment)\n\nReturns source map converter from given base64 encoded json string prefixed with `//# sourceMappingURL=...`.\n\n### fromMapFileComment(comment, mapFileDir)\n\nReturns source map converter from given `filename` by parsing `//# sourceMappingURL=filename`.\n\n`filename` must point to a file that is found inside the `mapFileDir`. Most tools store this file right next to the\ngenerated file, i.e. the one containing the source map.\n\n### fromSource(source)\n\nFinds last sourcemap comment in file and returns source map converter or returns null if no source map comment was found.\n\n### fromMapFileSource(source, mapFileDir)\n\nFinds last sourcemap comment in file and returns source map converter or returns null if no source map comment was\nfound.\n\nThe sourcemap will be read from the map file found by parsing `# sourceMappingURL=file` comment. For more info see\nfromMapFileComment.\n\n### toObject()\n\nReturns a copy of the underlying source map.\n\n### toJSON([space])\n\nConverts source map to json string. If `space` is given (optional), this will be passed to\n[JSON.stringify](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/JSON/stringify) when the\nJSON string is generated.\n\n### toBase64()\n\nConverts source map to base64 encoded json string.\n\n### toComment([options])\n\nConverts source map to an inline comment that can be appended to the source-file.\n\nBy default, the comment is formatted like: `//# sourceMappingURL=...`, which you would\nnormally see in a JS source file.\n\nWhen `options.multiline == true`, the comment is formatted like: `/*# sourceMappingURL=... */`, which you would find in a CSS source file.\n\n### addProperty(key, value)\n\nAdds given property to the source map. Throws an error if property already exists.\n\n### setProperty(key, value)\n\nSets given property to the source map. If property doesn't exist it is added, otherwise its value is updated.\n\n### getProperty(key)\n\nGets given property of the source map.\n\n### removeComments(src)\n\nReturns `src` with all source map comments removed\n\n### removeMapFileComments(src)\n\nReturns `src` with all source map comments pointing to map files removed.\n\n### commentRegex\n\nProvides __a fresh__ RegExp each time it is accessed. Can be used to find source map comments.\n\n### mapFileCommentRegex\n\nProvides __a fresh__ RegExp each time it is accessed. Can be used to find source map comments pointing to map files.\n\n### generateMapFileComment(file, [options])\n\nReturns a comment that links to an external source map via `file`.\n\nBy default, the comment is formatted like: `//# sourceMappingURL=...`, which you would normally see in a JS source file.\n\nWhen `options.multiline == true`, the comment is formatted like: `/*# sourceMappingURL=... */`, which you would find in a CSS source file.\n\n[ci-url]: https://github.com/thlorenz/convert-source-map/actions?query=workflow:ci\n[ci-image]: https://img.shields.io/github/workflow/status/thlorenz/convert-source-map/CI?style=flat-square\nOverview [](https://travis-ci.org/lydell/js-tokens)\n========\n\nA regex that tokenizes JavaScript.\n\n```js\nvar jsTokens = require(\"js-tokens\").default\n\nvar jsString = \"var foo=opts.foo;\\n...\"\n\njsString.match(jsTokens)\n// [\"var\", \" \", \"foo\", \"=\", \"opts\", \".\", \"foo\", \";\", \"\\n\", ...]\n```\n\nInstallation\n============\n\n`npm install js-tokens`\n\n```js\nimport jsTokens from \"js-tokens\"\n// or:\nvar jsTokens = require(\"js-tokens\").default\n```\n\nUsage\n=====\n\n### `jsTokens` ###\n\nA regex with the `g` flag that matches JavaScript tokens.\n\nThe regex _always_ matches, even invalid JavaScript and the empty string.\n\nThe next match is always directly after the previous.\n\n### `var token = matchToToken(match)` ###\n\n```js\nimport {matchToToken} from \"js-tokens\"\n// or:\nvar matchToToken = require(\"js-tokens\").matchToToken\n```\n\nTakes a `match` returned by `jsTokens.exec(string)`, and returns a `{type:\nString, value: String}` object. The following types are available:\n\n- string\n- comment\n- regex\n- number\n- name\n- punctuator\n- whitespace\n- invalid\n\nMulti-line comments and strings also have a `closed` property indicating if the\ntoken was closed or not (see below).\n\nComments and strings both come in several flavors. To distinguish them, check if\nthe token starts with `//`, `/*`, `'`, `\"` or `` ` ``.\n\nNames are ECMAScript IdentifierNames, that is, including both identifiers and\nkeywords. You may use [is-keyword-js] to tell them apart.\n\nWhitespace includes both line terminators and other whitespace.\n\n[is-keyword-js]: https://github.com/crissdev/is-keyword-js\n\nECMAScript support\n==================\n\nThe intention is to always support the latest ECMAScript version whose feature\nset has been finalized.\n\nIf adding support for a newer version requires changes, a new version with a\nmajor verion bump will be released.\n\nCurrently, ECMAScript 2018 is supported.\n\nInvalid code handling\n=====================\n\nUnterminated strings are still matched as strings. JavaScript strings cannot\ncontain (unescaped) newlines, so unterminated strings simply end at the end of\nthe line. Unterminated template strings can contain unescaped newlines, though,\nso they go on to the end of input.\n\nUnterminated multi-line comments are also still matched as comments. They\nsimply go on to the end of the input.\n\nUnterminated regex literals are likely matched as division and whatever is\ninside the regex.\n\nInvalid ASCII characters have their own capturing group.\n\nInvalid non-ASCII characters are treated as names, to simplify the matching of\nnames (except unicode spaces which are treated as whitespace). Note: See also\nthe [ES2018](#es2018) section.\n\nRegex literals may contain invalid regex syntax. They are still matched as\nregex literals. They may also contain repeated regex flags, to keep the regex\nsimple.\n\nStrings may contain invalid escape sequences.\n\nLimitations\n===========\n\nTokenizing JavaScript using regexes—in fact, _one single regex_—won’t be\nperfect. But that’s not the point either.\n\nYou may compare jsTokens with [esprima] by using `esprima-compare.js`.\nSee `npm run esprima-compare`!\n\n[esprima]: http://esprima.org/\n\n### Template string interpolation ###\n\nTemplate strings are matched as single tokens, from the starting `` ` `` to the\nending `` ` ``, including interpolations (whose tokens are not matched\nindividually).\n\nMatching template string interpolations requires recursive balancing of `{` and\n`}`—something that JavaScript regexes cannot do. Only one level of nesting is\nsupported.\n\n### Division and regex literals collision ###\n\nConsider this example:\n\n```js\nvar g = 9.82\nvar number = bar / 2/g\n\nvar regex = / 2/g\n```\n\nA human can easily understand that in the `number` line we’re dealing with\ndivision, and in the `regex` line we’re dealing with a regex literal. How come?\nBecause humans can look at the whole code to put the `/` characters in context.\nA JavaScript regex cannot. It only sees forwards. (Well, ES2018 regexes can also\nlook backwards. See the [ES2018](#es2018) section).\n\nWhen the `jsTokens` regex scans throught the above, it will see the following\nat the end of both the `number` and `regex` rows:\n\n```js\n/ 2/g\n```\n\nIt is then impossible to know if that is a regex literal, or part of an\nexpression dealing with division.\n\nHere is a similar case:\n\n```js\nfoo /= 2/g\nfoo(/= 2/g)\n```\n\nThe first line divides the `foo` variable with `2/g`. The second line calls the\n`foo` function with the regex literal `/= 2/g`. Again, since `jsTokens` only\nsees forwards, it cannot tell the two cases apart.\n\nThere are some cases where we _can_ tell division and regex literals apart,\nthough.\n\nFirst off, we have the simple cases where there’s only one slash in the line:\n\n```js\nvar foo = 2/g\nfoo /= 2\n```\n\nRegex literals cannot contain newlines, so the above cases are correctly\nidentified as division. Things are only problematic when there are more than\none non-comment slash in a single line.\n\nSecondly, not every character is a valid regex flag.\n\n```js\nvar number = bar / 2/e\n```\n\nThe above example is also correctly identified as division, because `e` is not a\nvalid regex flag. I initially wanted to future-proof by allowing `[a-zA-Z]*`\n(any letter) as flags, but it is not worth it since it increases the amount of\nambigous cases. So only the standard `g`, `m`, `i`, `y` and `u` flags are\nallowed. This means that the above example will be identified as division as\nlong as you don’t rename the `e` variable to some permutation of `gmiyus` 1 to 6\ncharacters long.\n\nLastly, we can look _forward_ for information.\n\n- If the token following what looks like a regex literal is not valid after a\n regex literal, but is valid in a division expression, then the regex literal\n is treated as division instead. For example, a flagless regex cannot be\n followed by a string, number or name, but all of those three can be the\n denominator of a division.\n- Generally, if what looks like a regex literal is followed by an operator, the\n regex literal is treated as division instead. This is because regexes are\n seldomly used with operators (such as `+`, `*`, `&&` and `==`), but division\n could likely be part of such an expression.\n\nPlease consult the regex source and the test cases for precise information on\nwhen regex or division is matched (should you need to know). In short, you\ncould sum it up as:\n\nIf the end of a statement looks like a regex literal (even if it isn’t), it\nwill be treated as one. Otherwise it should work as expected (if you write sane\ncode).\n\n### ES2018 ###\n\nES2018 added some nice regex improvements to the language.\n\n- [Unicode property escapes] should allow telling names and invalid non-ASCII\n characters apart without blowing up the regex size.\n- [Lookbehind assertions] should allow matching telling division and regex\n literals apart in more cases.\n- [Named capture groups] might simplify some things.\n\nThese things would be nice to do, but are not critical. They probably have to\nwait until the oldest maintained Node.js LTS release supports those features.\n\n[Unicode property escapes]: http://2ality.com/2017/07/regexp-unicode-property-escapes.html\n[Lookbehind assertions]: http://2ality.com/2017/05/regexp-lookbehind-assertions.html\n[Named capture groups]: http://2ality.com/2017/05/regexp-named-capture-groups.html\n\nLicense\n=======\n\n[MIT](LICENSE).\n# `resolve-alpn`\n\n[](https://github.com/szmarczak/resolve-alpn/actions)\n[](https://codecov.io/gh/szmarczak/resolve-alpn)\n\n## API\n\n### resolveALPN(options, connect = tls.connect)\n\nReturns an object with an `alpnProtocol` property. The `socket` property may be also present.\n\n```js\nconst result = await resolveALPN({\n\thost: 'nghttp2.org',\n\tport: 443,\n\tALPNProtocols: ['h2', 'http/1.1'],\n\tservername: 'nghttp2.org'\n});\n\nconsole.log(result); // {alpnProtocol: 'h2'}\n```\n\n**Note:** While the `servername` option is not required in this case, many other servers do. It's best practice to set it anyway.\n\n**Note:** If the socket times out, the promise will resolve and `result.timeout` will be set to `true`.\n\n#### options\n\nSame as [TLS options](https://nodejs.org/api/tls.html#tls_tls_connect_options_callback).\n\n##### options.resolveSocket\n\nBy default, the socket gets destroyed and the promise resolves.<br>\nIf you set this to true, it will return the socket in a `socket` property.\n\n```js\nconst result = await resolveALPN({\n\thost: 'nghttp2.org',\n\tport: 443,\n\tALPNProtocols: ['h2', 'http/1.1'],\n\tservername: 'nghttp2.org',\n\tresolveSocket: true\n});\n\nconsole.log(result); // {alpnProtocol: 'h2', socket: tls.TLSSocket}\n\n// Remember to destroy the socket if you don't use it!\nresult.socket.destroy();\n```\n\n#### connect\n\nType: `Function<TLSSocket> | AsyncFunction<TLSSocket>`\\\nDefault: [`tls.connect`](https://nodejs.org/dist/latest-v16.x/docs/api/tls.html#tls_tls_connect_options_callback)\n\n**Note:** No matter which function is used (synchronous or asynchronous), it **must** accept a `callback` function as a second argument. The `callback` function gets executed when the socket has successfully connected.\n\n## License\n\nMIT\n<p align=\"center\">\n\t<a href=\"https://rollupjs.org/\"><img src=\"https://rollupjs.org/logo.svg\" width=\"150\" /></a>\n</p>\n\n<p align=\"center\">\n <a href=\"https://www.npmjs.com/package/rollup\">\n <img src=\"https://img.shields.io/npm/v/rollup.svg\" alt=\"npm version\" >\n </a>\n <a href=\"https://packagephobia.now.sh/result?p=rollup\">\n <img src=\"https://packagephobia.now.sh/badge?p=rollup\" alt=\"install size\" >\n </a>\n <a href=\"https://codecov.io/gh/rollup/rollup\">\n <img src=\"https://codecov.io/gh/rollup/rollup/graph/badge.svg\" alt=\"code coverage\" >\n </a>\n <a href=\"#backers\" alt=\"sponsors on Open Collective\">\n <img src=\"https://opencollective.com/rollup/backers/badge.svg\" alt=\"backers\" >\n </a> \n <a href=\"#sponsors\" alt=\"Sponsors on Open Collective\">\n <img src=\"https://opencollective.com/rollup/sponsors/badge.svg\" alt=\"sponsors\" >\n </a> \n <a href=\"https://github.com/rollup/rollup/blob/master/LICENSE.md\">\n <img src=\"https://img.shields.io/npm/l/rollup.svg\" alt=\"license\">\n </a>\n \n <a href='https://is.gd/rollup_chat?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge'>\n <img src='https://img.shields.io/discord/466787075518365708?color=778cd1&label=chat' alt='Join the chat at https://is.gd/rollup_chat'>\n </a>\n</p>\n\n<h1 align=\"center\">Rollup</h1>\n\n## Overview\n\nRollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the standardized ES module format for code, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. Rollup can optimize ES modules for faster native loading in modern browsers, or output a legacy module format allowing ES module workflows today.\n\n## Quick Start Guide\n\nInstall with `npm install --global rollup`. Rollup can be used either through a [command line interface](https://rollupjs.org/#command-line-reference) with an optional configuration file or else through its [JavaScript API](https://rollupjs.org/guide/en/#javascript-api). Run `rollup --help` to see the available options and parameters. The starter project templates, [rollup-starter-lib](https://github.com/rollup/rollup-starter-lib) and [rollup-starter-app](https://github.com/rollup/rollup-starter-app), demonstrate common configuration options, and more detailed instructions are available throughout the [user guide](https://rollupjs.org/).\n\n### Commands\n\nThese commands assume the entry point to your application is named main.js, and that you'd like all imports compiled into a single file named bundle.js.\n\nFor browsers:\n\n```bash\n# compile to a <script> containing a self-executing function\nrollup main.js --format iife --name \"myBundle\" --file bundle.js\n```\n\nFor Node.js:\n\n```bash\n# compile to a CommonJS module\nrollup main.js --format cjs --file bundle.js\n```\n\nFor both browsers and Node.js:\n\n```bash\n# UMD format requires a bundle name\nrollup main.js --format umd --name \"myBundle\" --file bundle.js\n```\n\n## Why\n\nDeveloping software is usually easier if you break your project into smaller separate pieces, since that often removes unexpected interactions and dramatically reduces the complexity of the problems you'll need to solve, and simply writing smaller projects in the first place [isn't necessarily the answer](https://medium.com/@Rich_Harris/small-modules-it-s-not-quite-that-simple-3ca532d65de4). Unfortunately, JavaScript has not historically included this capability as a core feature in the language.\n\nThis finally changed with ES modules support in JavaScript, which provides a syntax for importing and exporting functions and data so they can be shared between separate scripts. Most browsers and Node.js support ES modules. However, Node.js releases before 12.17 support ES modules only behind the `--experimental-modules` flag, and older browsers like Internet Explorer do not support ES modules at all. Rollup allows you to write your code using ES modules, and run your application even in environments that do not support ES modules natively. For environments that support them, Rollup can output optimized ES modules; for environments that don't, Rollup can compile your code to other formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to _write future-proof code_, and you also get the tremendous benefits of...\n\n## Tree Shaking\n\nIn addition to enabling the use of ES modules, Rollup also statically analyzes and optimizes the code you are importing, and will exclude anything that isn't actually used. This allows you to build on top of existing tools and modules without adding extra dependencies or bloating the size of your project.\n\nFor example, with CommonJS, the _entire tool or library must be imported_.\n\n```js\n// import the entire utils object with CommonJS\nvar utils = require('utils');\nvar query = 'Rollup';\n// use the ajax method of the utils object\nutils.ajax('https://api.example.com?search=' + query).then(handleResponse);\n```\n\nBut with ES modules, instead of importing the whole `utils` object, we can just import the one `ajax` function we need:\n\n```js\n// import the ajax function with an ES import statement\nimport { ajax } from 'utils';\nvar query = 'Rollup';\n// call the ajax function\najax('https://api.example.com?search=' + query).then(handleResponse);\n```\n\nBecause Rollup includes the bare minimum, it results in lighter, faster, and less complicated libraries and applications. Since this approach is based on explicit `import` and `export` statements, it is vastly more effective than simply running an automated minifier to detect unused variables in the compiled output code.\n\n## Compatibility\n\n### Importing CommonJS\n\nRollup can import existing CommonJS modules [through a plugin](https://github.com/rollup/plugins/tree/master/packages/commonjs).\n\n### Publishing ES Modules\n\nTo make sure your ES modules are immediately usable by tools that work with CommonJS such as Node.js and webpack, you can use Rollup to compile to UMD or CommonJS format, and then point to that compiled version with the `main` property in your `package.json` file. If your `package.json` file also has a `module` field, ES-module-aware tools like Rollup and [webpack](https://webpack.js.org/) will [import the ES module version](https://github.com/rollup/rollup/wiki/pkg.module) directly.\n\n## Contributors\n\nThis project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)]. <a href=\"https://github.com/rollup/rollup/graphs/contributors\"><img src=\"https://opencollective.com/rollup/contributors.svg?width=890\" /></a>\n\n## Backers\n\nThank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/rollup#backer)]\n\n<a href=\"https://opencollective.com/rollup#backers\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/backers.svg?width=890\"></a>\n\n## Sponsors\n\nSupport this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/rollup#sponsor)]\n\n<a href=\"https://opencollective.com/rollup/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/0/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/1/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/2/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/3/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/4/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/5/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/6/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/7/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/8/avatar.svg\"></a> <a href=\"https://opencollective.com/rollup/sponsor/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/rollup/sponsor/9/avatar.svg\"></a>\n\n## License\n\n[MIT](https://github.com/rollup/rollup/blob/master/LICENSE.md)\nwide-align\n----------\n\nA wide-character aware text alignment function for use in terminals / on the\nconsole.\n\n### Usage\n\n```\nvar align = require('wide-align')\n\n// Note that if you view this on a unicode console, all of the slashes are\n// aligned. This is because on a console, all narrow characters are\n// an en wide and all wide characters are an em. In browsers, this isn't\n// held to and wide characters like \"古\" can be less than two narrow\n// characters even with a fixed width font.\n\nconsole.log(align.center('abc', 10)) // ' abc '\nconsole.log(align.center('古古古', 10)) // ' 古古古 '\nconsole.log(align.left('abc', 10)) // 'abc '\nconsole.log(align.left('古古古', 10)) // '古古古 '\nconsole.log(align.right('abc', 10)) // ' abc'\nconsole.log(align.right('古古古', 10)) // ' 古古古'\n```\n\n### Functions\n\n#### `align.center(str, length)` → `str`\n\nReturns *str* with spaces added to both sides such that that it is *length*\nchars long and centered in the spaces.\n\n#### `align.left(str, length)` → `str`\n\nReturns *str* with spaces to the right such that it is *length* chars long.\n\n### `align.right(str, length)` → `str`\n\nReturns *str* with spaces to the left such that it is *length* chars long.\n\n### Origins\n\nThese functions were originally taken from \n[cliui](https://npmjs.com/package/cliui). Changes include switching to the\nMUCH faster pad generation function from\n[lodash](https://npmjs.com/package/lodash), making center alignment pad\nboth sides and adding left alignment.\n# Statuses\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nHTTP status utility for node.\n\nThis module provides a list of status codes and messages sourced from\na few different projects:\n\n * The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)\n * The [Node.js project](https://nodejs.org/)\n * The [NGINX project](https://www.nginx.com/)\n * The [Apache HTTP Server project](https://httpd.apache.org/)\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install statuses\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar status = require('statuses')\n```\n\n### var code = status(Integer || String)\n\nIf `Integer` or `String` is a valid HTTP code or status message, then the\nappropriate `code` will be returned. Otherwise, an error will be thrown.\n\n<!-- eslint-disable no-undef -->\n\n```js\nstatus(403) // => 403\nstatus('403') // => 403\nstatus('forbidden') // => 403\nstatus('Forbidden') // => 403\nstatus(306) // throws, as it's not supported by node.js\n```\n\n### status.STATUS_CODES\n\nReturns an object which maps status codes to status messages, in\nthe same format as the\n[Node.js http module](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).\n\n### status.codes\n\nReturns an array of all the status codes as `Integer`s.\n\n### var msg = status[code]\n\nMap of `code` to `status message`. `undefined` for invalid `code`s.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus[404] // => 'Not Found'\n```\n\n### var code = status[msg]\n\nMap of `status message` to `code`. `msg` can either be title-cased or\nlower-cased. `undefined` for invalid `status message`s.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus['not found'] // => 404\nstatus['Not Found'] // => 404\n```\n\n### status.redirect[code]\n\nReturns `true` if a status code is a valid redirect status.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.redirect[200] // => undefined\nstatus.redirect[301] // => true\n```\n\n### status.empty[code]\n\nReturns `true` if a status code expects an empty body.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.empty[200] // => undefined\nstatus.empty[204] // => true\nstatus.empty[304] // => true\n```\n\n### status.retry[code]\n\nReturns `true` if you should retry the rest.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.retry[501] // => undefined\nstatus.retry[503] // => true\n```\n\n[npm-image]: https://img.shields.io/npm/v/statuses.svg\n[npm-url]: https://npmjs.org/package/statuses\n[node-version-image]: https://img.shields.io/node/v/statuses.svg\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/jshttp/statuses.svg\n[travis-url]: https://travis-ci.org/jshttp/statuses\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/statuses.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/statuses.svg\n[downloads-url]: https://npmjs.org/package/statuses\n# to-regex-range [](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [](https://www.npmjs.com/package/to-regex-range) [](https://npmjs.org/package/to-regex-range) [](https://npmjs.org/package/to-regex-range) [](https://travis-ci.org/micromatch/to-regex-range)\n\n> Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save to-regex-range\n```\n\n<details>\n<summary><strong>What does this do?</strong></summary>\n\n<br>\n\nThis libary generates the `source` string to be passed to `new RegExp()` for matching a range of numbers.\n\n**Example**\n\n```js\nconst toRegexRange = require('to-regex-range');\nconst regex = new RegExp(toRegexRange('15', '95'));\n```\n\nA string is returned so that you can do whatever you need with it before passing it to `new RegExp()` (like adding `^` or `$` boundaries, defining flags, or combining it another string).\n\n<br>\n\n</details>\n\n<details>\n<summary><strong>Why use this library?</strong></summary>\n\n<br>\n\n### Convenience\n\nCreating regular expressions for matching numbers gets deceptively complicated pretty fast.\n\nFor example, let's say you need a validation regex for matching part of a user-id, postal code, social security number, tax id, etc:\n\n* regex for matching `1` => `/1/` (easy enough)\n* regex for matching `1` through `5` => `/[1-5]/` (not bad...)\n* regex for matching `1` or `5` => `/(1|5)/` (still easy...)\n* regex for matching `1` through `50` => `/([1-9]|[1-4][0-9]|50)/` (uh-oh...)\n* regex for matching `1` through `55` => `/([1-9]|[1-4][0-9]|5[0-5])/` (no prob, I can do this...)\n* regex for matching `1` through `555` => `/([1-9]|[1-9][0-9]|[1-4][0-9]{2}|5[0-4][0-9]|55[0-5])/` (maybe not...)\n* regex for matching `0001` through `5555` => `/(0{3}[1-9]|0{2}[1-9][0-9]|0[1-9][0-9]{2}|[1-4][0-9]{3}|5[0-4][0-9]{2}|55[0-4][0-9]|555[0-5])/` (okay, I get the point!)\n\nThe numbers are contrived, but they're also really basic. In the real world you might need to generate a regex on-the-fly for validation.\n\n**Learn more**\n\nIf you're interested in learning more about [character classes](http://www.regular-expressions.info/charclass.html) and other regex features, I personally have always found [regular-expressions.info](http://www.regular-expressions.info/charclass.html) to be pretty useful.\n\n### Heavily tested\n\nAs of April 07, 2019, this library runs [>1m test assertions](./test/test.js) against generated regex-ranges to provide brute-force verification that results are correct.\n\nTests run in ~280ms on my MacBook Pro, 2.5 GHz Intel Core i7.\n\n### Optimized\n\nGenerated regular expressions are optimized:\n\n* duplicate sequences and character classes are reduced using quantifiers\n* smart enough to use `?` conditionals when number(s) or range(s) can be positive or negative\n* uses fragment caching to avoid processing the same exact string more than once\n\n<br>\n\n</details>\n\n## Usage\n\nAdd this library to your javascript application with the following line of code\n\n```js\nconst toRegexRange = require('to-regex-range');\n```\n\nThe main export is a function that takes two integers: the `min` value and `max` value (formatted as strings or numbers).\n\n```js\nconst source = toRegexRange('15', '95');\n//=> 1[5-9]|[2-8][0-9]|9[0-5]\n\nconst regex = new RegExp(`^${source}$`);\nconsole.log(regex.test('14')); //=> false\nconsole.log(regex.test('50')); //=> true\nconsole.log(regex.test('94')); //=> true\nconsole.log(regex.test('96')); //=> false\n```\n\n## Options\n\n### options.capture\n\n**Type**: `boolean`\n\n**Deafault**: `undefined`\n\nWrap the returned value in parentheses when there is more than one regex condition. Useful when you're dynamically generating ranges.\n\n```js\nconsole.log(toRegexRange('-10', '10'));\n//=> -[1-9]|-?10|[0-9]\n\nconsole.log(toRegexRange('-10', '10', { capture: true }));\n//=> (-[1-9]|-?10|[0-9])\n```\n\n### options.shorthand\n\n**Type**: `boolean`\n\n**Deafault**: `undefined`\n\nUse the regex shorthand for `[0-9]`:\n\n```js\nconsole.log(toRegexRange('0', '999999'));\n//=> [0-9]|[1-9][0-9]{1,5}\n\nconsole.log(toRegexRange('0', '999999', { shorthand: true }));\n//=> \\d|[1-9]\\d{1,5}\n```\n\n### options.relaxZeros\n\n**Type**: `boolean`\n\n**Default**: `true`\n\nThis option relaxes matching for leading zeros when when ranges are zero-padded.\n\n```js\nconst source = toRegexRange('-0010', '0010');\nconst regex = new RegExp(`^${source}$`);\nconsole.log(regex.test('-10')); //=> true\nconsole.log(regex.test('-010')); //=> true\nconsole.log(regex.test('-0010')); //=> true\nconsole.log(regex.test('10')); //=> true\nconsole.log(regex.test('010')); //=> true\nconsole.log(regex.test('0010')); //=> true\n```\n\nWhen `relaxZeros` is false, matching is strict:\n\n```js\nconst source = toRegexRange('-0010', '0010', { relaxZeros: false });\nconst regex = new RegExp(`^${source}$`);\nconsole.log(regex.test('-10')); //=> false\nconsole.log(regex.test('-010')); //=> false\nconsole.log(regex.test('-0010')); //=> true\nconsole.log(regex.test('10')); //=> false\nconsole.log(regex.test('010')); //=> false\nconsole.log(regex.test('0010')); //=> true\n```\n\n## Examples\n\n| **Range** | **Result** | **Compile time** |\n| --- | --- | --- |\n| `toRegexRange(-10, 10)` | `-[1-9]\\|-?10\\|[0-9]` | _132μs_ |\n| `toRegexRange(-100, -10)` | `-1[0-9]\\|-[2-9][0-9]\\|-100` | _50μs_ |\n| `toRegexRange(-100, 100)` | `-[1-9]\\|-?[1-9][0-9]\\|-?100\\|[0-9]` | _42μs_ |\n| `toRegexRange(001, 100)` | `0{0,2}[1-9]\\|0?[1-9][0-9]\\|100` | _109μs_ |\n| `toRegexRange(001, 555)` | `0{0,2}[1-9]\\|0?[1-9][0-9]\\|[1-4][0-9]{2}\\|5[0-4][0-9]\\|55[0-5]` | _51μs_ |\n| `toRegexRange(0010, 1000)` | `0{0,2}1[0-9]\\|0{0,2}[2-9][0-9]\\|0?[1-9][0-9]{2}\\|1000` | _31μs_ |\n| `toRegexRange(1, 50)` | `[1-9]\\|[1-4][0-9]\\|50` | _24μs_ |\n| `toRegexRange(1, 55)` | `[1-9]\\|[1-4][0-9]\\|5[0-5]` | _23μs_ |\n| `toRegexRange(1, 555)` | `[1-9]\\|[1-9][0-9]\\|[1-4][0-9]{2}\\|5[0-4][0-9]\\|55[0-5]` | _30μs_ |\n| `toRegexRange(1, 5555)` | `[1-9]\\|[1-9][0-9]{1,2}\\|[1-4][0-9]{3}\\|5[0-4][0-9]{2}\\|55[0-4][0-9]\\|555[0-5]` | _43μs_ |\n| `toRegexRange(111, 555)` | `11[1-9]\\|1[2-9][0-9]\\|[2-4][0-9]{2}\\|5[0-4][0-9]\\|55[0-5]` | _38μs_ |\n| `toRegexRange(29, 51)` | `29\\|[34][0-9]\\|5[01]` | _24μs_ |\n| `toRegexRange(31, 877)` | `3[1-9]\\|[4-9][0-9]\\|[1-7][0-9]{2}\\|8[0-6][0-9]\\|87[0-7]` | _32μs_ |\n| `toRegexRange(5, 5)` | `5` | _8μs_ |\n| `toRegexRange(5, 6)` | `5\\|6` | _11μs_ |\n| `toRegexRange(1, 2)` | `1\\|2` | _6μs_ |\n| `toRegexRange(1, 5)` | `[1-5]` | _15μs_ |\n| `toRegexRange(1, 10)` | `[1-9]\\|10` | _22μs_ |\n| `toRegexRange(1, 100)` | `[1-9]\\|[1-9][0-9]\\|100` | _25μs_ |\n| `toRegexRange(1, 1000)` | `[1-9]\\|[1-9][0-9]{1,2}\\|1000` | _31μs_ |\n| `toRegexRange(1, 10000)` | `[1-9]\\|[1-9][0-9]{1,3}\\|10000` | _34μs_ |\n| `toRegexRange(1, 100000)` | `[1-9]\\|[1-9][0-9]{1,4}\\|100000` | _36μs_ |\n| `toRegexRange(1, 1000000)` | `[1-9]\\|[1-9][0-9]{1,5}\\|1000000` | _42μs_ |\n| `toRegexRange(1, 10000000)` | `[1-9]\\|[1-9][0-9]{1,6}\\|10000000` | _42μs_ |\n\n## Heads up!\n\n**Order of arguments**\n\nWhen the `min` is larger than the `max`, values will be flipped to create a valid range:\n\n```js\ntoRegexRange('51', '29');\n```\n\nIs effectively flipped to:\n\n```js\ntoRegexRange('29', '51');\n//=> 29|[3-4][0-9]|5[0-1]\n```\n\n**Steps / increments**\n\nThis library does not support steps (increments). A pr to add support would be welcome.\n\n## History\n\n### v2.0.0 - 2017-04-21\n\n**New features**\n\nAdds support for zero-padding!\n\n### v1.0.0\n\n**Optimizations**\n\nRepeating ranges are now grouped using quantifiers. rocessing time is roughly the same, but the generated regex is much smaller, which should result in faster matching.\n\n## Attribution\n\nInspired by the python library [range-regex](https://github.com/dimka665/range-regex).\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range \"Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used by micromatch.\")\n* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range \"Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n* [repeat-element](https://www.npmjs.com/package/repeat-element): Create an array by repeating the given value n times. | [homepage](https://github.com/jonschlinkert/repeat-element \"Create an array by repeating the given value n times.\")\n* [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string \"Repeat the given string n times. Fastest implementation for repeating a string.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 63 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 3 | [doowb](https://github.com/doowb) | \n| 2 | [realityking](https://github.com/realityking) | \n\n### Author\n\n**Jon Schlinkert**\n\n* [GitHub Profile](https://github.com/jonschlinkert)\n* [Twitter Profile](https://twitter.com/jonschlinkert)\n* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)\n\nPlease consider supporting me on Patreon, or [start your own Patreon page](https://patreon.com/invite/bxpbvm)!\n\n<a href=\"https://www.patreon.com/jonschlinkert\">\n<img src=\"https://c5.patreon.com/external/logo/become_a_patron_button@2x.png\" height=\"50\">\n</a>\n\n### License\n\nCopyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on April 07, 2019._\n# rc\n\nThe non-configurable configuration loader for lazy people.\n\n## Usage\n\nThe only option is to pass rc the name of your app, and your default configuration.\n\n```javascript\nvar conf = require('rc')(appname, {\n //defaults go here.\n port: 2468,\n\n //defaults which are objects will be merged, not replaced\n views: {\n engine: 'jade'\n }\n});\n```\n\n`rc` will return your configuration options merged with the defaults you specify.\nIf you pass in a predefined defaults object, it will be mutated:\n\n```javascript\nvar conf = {};\nrequire('rc')(appname, conf);\n```\n\nIf `rc` finds any config files for your app, the returned config object will have\na `configs` array containing their paths:\n\n```javascript\nvar appCfg = require('rc')(appname, conf);\nappCfg.configs[0] // /etc/appnamerc\nappCfg.configs[1] // /home/dominictarr/.config/appname\nappCfg.config // same as appCfg.configs[appCfg.configs.length - 1]\n```\n\n## Standards\n\nGiven your application name (`appname`), rc will look in all the obvious places for configuration.\n\n * command line arguments, parsed by minimist _(e.g. `--foo baz`, also nested: `--foo.bar=baz`)_\n * environment variables prefixed with `${appname}_`\n * or use \"\\_\\_\" to indicate nested properties <br/> _(e.g. `appname_foo__bar__baz` => `foo.bar.baz`)_\n * if you passed an option `--config file` then from that file\n * a local `.${appname}rc` or the first found looking in `./ ../ ../../ ../../../` etc.\n * `$HOME/.${appname}rc`\n * `$HOME/.${appname}/config`\n * `$HOME/.config/${appname}`\n * `$HOME/.config/${appname}/config`\n * `/etc/${appname}rc`\n * `/etc/${appname}/config`\n * the defaults object you passed in.\n\nAll configuration sources that were found will be flattened into one object,\nso that sources **earlier** in this list override later ones.\n\n## Configuration File Formats\n\nConfiguration files (e.g. `.appnamerc`) may be in either [json](http://json.org/example) or [ini](http://en.wikipedia.org/wiki/INI_file) format. **No** file extension (`.json` or `.ini`) should be used. The example configurations below are equivalent:\n\n#### Formatted as `ini`\n\n```\n; You can include comments in `ini` format if you want.\n\ndependsOn=0.10.0\n\n; `rc` has built-in support for ini sections, see?\n\n[commands]\n www = ./commands/www\n console = ./commands/repl\n\n; You can even do nested sections\n\n[generators.options]\n engine = ejs\n\n[generators.modules]\n new = generate-new\n engine = generate-backend\n\n```\n\n#### Formatted as `json`\n\n```javascript\n{\n // You can even comment your JSON, if you want\n \"dependsOn\": \"0.10.0\",\n \"commands\": {\n \"www\": \"./commands/www\",\n \"console\": \"./commands/repl\"\n },\n \"generators\": {\n \"options\": {\n \"engine\": \"ejs\"\n },\n \"modules\": {\n \"new\": \"generate-new\",\n \"backend\": \"generate-backend\"\n }\n }\n}\n```\n\nComments are stripped from JSON config via [strip-json-comments](https://github.com/sindresorhus/strip-json-comments).\n\n> Since ini, and env variables do not have a standard for types, your application needs be prepared for strings.\n\nTo ensure that string representations of booleans and numbers are always converted into their proper types (especially useful if you intend to do strict `===` comparisons), consider using a module such as [parse-strings-in-object](https://github.com/anselanza/parse-strings-in-object) to wrap the config object returned from rc.\n\n## Simple example demonstrating precedence\nAssume you have an application like this (notice the hard-coded defaults passed to rc):\n```\nconst conf = require('rc')('myapp', {\n port: 12345,\n mode: 'test'\n});\n\nconsole.log(JSON.stringify(conf, null, 2));\n```\nYou also have a file `config.json`, with these contents:\n```\n{\n \"port\": 9000,\n \"foo\": \"from config json\",\n \"something\": \"else\"\n}\n```\nAnd a file `.myapprc` in the same folder, with these contents:\n```\n{\n \"port\": \"3001\",\n \"foo\": \"bar\"\n}\n```\nHere is the expected output from various commands:\n\n`node .`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"bar\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Default `mode` from hard-coded object is retained, but port is overridden by `.myapprc` file (automatically found based on appname match), and `foo` is added.*\n\n`node . --foo baz`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"baz\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Same result as above but `foo` is overridden because command-line arguments take precedence over `.myapprc` file.*\n\n`node . --foo barbar --config config.json`\n```\n{\n \"port\": 9000,\n \"mode\": \"test\",\n \"foo\": \"barbar\",\n \"something\": \"else\",\n \"_\": [],\n \"config\": \"config.json\",\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\",\n \"config.json\"\n ]\n}\n```\n*Now the `port` comes from the `config.json` file specified (overriding the value from `.myapprc`), and `foo` value is overriden by command-line despite also being specified in the `config.json` file.*\n \n\n## Advanced Usage\n\n#### Pass in your own `argv`\n\nYou may pass in your own `argv` as the third argument to `rc`. This is in case you want to [use your own command-line opts parser](https://github.com/dominictarr/rc/pull/12).\n\n```javascript\nrequire('rc')(appname, defaults, customArgvParser);\n```\n\n## Pass in your own parser\n\nIf you have a special need to use a non-standard parser,\nyou can do so by passing in the parser as the 4th argument.\n(leave the 3rd as null to get the default args parser)\n\n```javascript\nrequire('rc')(appname, defaults, null, parser);\n```\n\nThis may also be used to force a more strict format,\nsuch as strict, valid JSON only.\n\n## Note on Performance\n\n`rc` is running `fs.statSync`-- so make sure you don't use it in a hot code path (e.g. a request handler) \n\n## License\n\nMulti-licensed under the two-clause BSD License, MIT License, or Apache License, version 2.0\n# toidentifier\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Build Status][github-actions-ci-image]][github-actions-ci-url]\n[![Test Coverage][codecov-image]][codecov-url]\n\n> Convert a string of words to a JavaScript identifier\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```bash\n$ npm install toidentifier\n```\n\n## Example\n\n```js\nvar toIdentifier = require('toidentifier')\n\nconsole.log(toIdentifier('Bad Request'))\n// => \"BadRequest\"\n```\n\n## API\n\nThis CommonJS module exports a single default function: `toIdentifier`.\n\n### toIdentifier(string)\n\nGiven a string as the argument, it will be transformed according to\nthe following rules and the new string will be returned:\n\n1. Split into words separated by space characters (`0x20`).\n2. Upper case the first character of each word.\n3. Join the words together with no separator.\n4. Remove all non-word (`[0-9a-z_]`) characters.\n\n## License\n\n[MIT](LICENSE)\n\n[codecov-image]: https://img.shields.io/codecov/c/github/component/toidentifier.svg\n[codecov-url]: https://codecov.io/gh/component/toidentifier\n[downloads-image]: https://img.shields.io/npm/dm/toidentifier.svg\n[downloads-url]: https://npmjs.org/package/toidentifier\n[github-actions-ci-image]: https://img.shields.io/github/workflow/status/component/toidentifier/ci/master?label=ci\n[github-actions-ci-url]: https://github.com/component/toidentifier?query=workflow%3Aci\n[npm-image]: https://img.shields.io/npm/v/toidentifier.svg\n[npm-url]: https://npmjs.org/package/toidentifier\n\n##\n\n[npm]: https://www.npmjs.com/\n\n[yarn]: https://yarnpkg.com/\n# isarray\n\n`Array#isArray` for older browsers.\n\n[](http://travis-ci.org/juliangruber/isarray)\n[](https://www.npmjs.org/package/isarray)\n\n[\n](https://ci.testling.com/juliangruber/isarray)\n\n## Usage\n\n```js\nvar isArray = require('isarray');\n\nconsole.log(isArray([])); // => true\nconsole.log(isArray({})); // => false\n```\n\n## Installation\n\nWith [npm](http://npmjs.org) do\n\n```bash\n$ npm install isarray\n```\n\nThen bundle for the browser with\n[browserify](https://github.com/substack/browserify).\n\nWith [component](http://component.io) do\n\n```bash\n$ component install juliangruber/isarray\n```\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# ci-info\n\nGet details about the current Continuous Integration environment.\n\nPlease [open an\nissue](https://github.com/watson/ci-info/issues/new?template=ci-server-not-detected.md)\nif your CI server isn't properly detected :)\n\n[](https://www.npmjs.com/package/ci-info)\n[](https://travis-ci.org/watson/ci-info)\n[](https://github.com/feross/standard)\n\n## Installation\n\n```bash\nnpm install ci-info --save\n```\n\n## Usage\n\n```js\nvar ci = require('ci-info')\n\nif (ci.isCI) {\n console.log('The name of the CI server is:', ci.name)\n} else {\n console.log('This program is not running on a CI server')\n}\n```\n\n## Supported CI tools\n\nOfficially supported CI servers:\n\n| Name | Constant | isPR |\n|------|----------|------|\n| [AWS CodeBuild](https://aws.amazon.com/codebuild/) | `ci.CODEBUILD` | 🚫 |\n| [AppVeyor](http://www.appveyor.com) | `ci.APPVEYOR` | ✅ |\n| [Azure Pipelines](https://azure.microsoft.com/en-us/services/devops/pipelines/) | `ci.AZURE_PIPELINES` | ✅ |\n| [Bamboo](https://www.atlassian.com/software/bamboo) by Atlassian | `ci.BAMBOO` | 🚫 |\n| [Bitbucket Pipelines](https://bitbucket.org/product/features/pipelines) | `ci.BITBUCKET` | ✅ |\n| [Bitrise](https://www.bitrise.io/) | `ci.BITRISE` | ✅ |\n| [Buddy](https://buddy.works/) | `ci.BUDDY` | ✅ |\n| [Buildkite](https://buildkite.com) | `ci.BUILDKITE` | ✅ |\n| [CircleCI](http://circleci.com) | `ci.CIRCLE` | ✅ |\n| [Cirrus CI](https://cirrus-ci.org) | `ci.CIRRUS` | ✅ |\n| [Codeship](https://codeship.com) | `ci.CODESHIP` | 🚫 |\n| [Drone](https://drone.io) | `ci.DRONE` | ✅ |\n| [dsari](https://github.com/rfinnie/dsari) | `ci.DSARI` | 🚫 |\n| [GitLab CI](https://about.gitlab.com/gitlab-ci/) | `ci.GITLAB` | 🚫 |\n| [GoCD](https://www.go.cd/) | `ci.GOCD` | 🚫 |\n| [Hudson](http://hudson-ci.org) | `ci.HUDSON` | 🚫 |\n| [Jenkins CI](https://jenkins-ci.org) | `ci.JENKINS` | ✅ |\n| [Magnum CI](https://magnum-ci.com) | `ci.MAGNUM` | 🚫 |\n| [Netlify CI](https://www.netlify.com/) | `ci.NETLIFY` | ✅ |\n| [Sail CI](https://sail.ci/) | `ci.SAIL` | ✅ |\n| [Semaphore](https://semaphoreci.com) | `ci.SEMAPHORE` | ✅ |\n| [Shippable](https://www.shippable.com/) | `ci.SHIPPABLE` | ✅ |\n| [Solano CI](https://www.solanolabs.com/) | `ci.SOLANO` | ✅ |\n| [Strider CD](https://strider-cd.github.io/) | `ci.STRIDER` | 🚫 |\n| [TaskCluster](http://docs.taskcluster.net) | `ci.TASKCLUSTER` | 🚫 |\n| [TeamCity](https://www.jetbrains.com/teamcity/) by JetBrains | `ci.TEAMCITY` | 🚫 |\n| [Travis CI](http://travis-ci.org) | `ci.TRAVIS` | ✅ |\n\n## API\n\n### `ci.name`\n\nReturns a string containing name of the CI server the code is running on.\nIf CI server is not detected, it returns `null`.\n\nDon't depend on the value of this string not to change for a specific\nvendor. If you find your self writing `ci.name === 'Travis CI'`, you\nmost likely want to use `ci.TRAVIS` instead.\n\n### `ci.isCI`\n\nReturns a boolean. Will be `true` if the code is running on a CI server,\notherwise `false`.\n\nSome CI servers not listed here might still trigger the `ci.isCI`\nboolean to be set to `true` if they use certain vendor neutral\nenvironment variables. In those cases `ci.name` will be `null` and no\nvendor specific boolean will be set to `true`.\n\n### `ci.isPR`\n\nReturns a boolean if PR detection is supported for the current CI server. Will\nbe `true` if a PR is being tested, otherwise `false`. If PR detection is\nnot supported for the current CI server, the value will be `null`.\n\n### `ci.<VENDOR-CONSTANT>`\n\nA vendor specific boolean constant is exposed for each support CI\nvendor. A constant will be `true` if the code is determined to run on\nthe given CI server, otherwise `false`.\n\nExamples of vendor constants are `ci.TRAVIS` or `ci.APPVEYOR`. For a\ncomplete list, see the support table above.\n\nDeprecated vendor constants that will be removed in the next major\nrelease:\n\n- `ci.TDDIUM` (Solano CI) This have been renamed `ci.SOLANO`\n\n## License\n\n[MIT](LICENSE)\n# axios\n\n[](https://www.npmjs.org/package/axios)\n[](https://cdnjs.com/libraries/axios)\n\n[](https://gitpod.io/#https://github.com/axios/axios) \n[](https://coveralls.io/r/mzabriskie/axios)\n[](https://packagephobia.now.sh/result?p=axios)\n[](http://npm-stat.com/charts.html?package=axios)\n[](https://gitter.im/mzabriskie/axios)\n[](https://www.codetriage.com/axios/axios)\n[](https://snyk.io/test/npm/axios)\n\nPromise based HTTP client for the browser and node.js\n\n> New axios docs website: [click here](https://axios-http.com/)\n\n## Table of Contents\n\n - [Features](#features)\n - [Browser Support](#browser-support)\n - [Installing](#installing)\n - [Example](#example)\n - [Axios API](#axios-api)\n - [Request method aliases](#request-method-aliases)\n - [Concurrency 👎](#concurrency-deprecated)\n - [Creating an instance](#creating-an-instance)\n - [Instance methods](#instance-methods)\n - [Request Config](#request-config)\n - [Response Schema](#response-schema)\n - [Config Defaults](#config-defaults)\n - [Global axios defaults](#global-axios-defaults)\n - [Custom instance defaults](#custom-instance-defaults)\n - [Config order of precedence](#config-order-of-precedence)\n - [Interceptors](#interceptors)\n - [Multiple Interceptors](#multiple-interceptors)\n - [Handling Errors](#handling-errors)\n - [Cancellation](#cancellation)\n - [AbortController](#abortcontroller)\n - [CancelToken 👎](#canceltoken-deprecated)\n - [Using application/x-www-form-urlencoded format](#using-applicationx-www-form-urlencoded-format)\n - [Browser](#browser)\n - [Node.js](#nodejs)\n - [Query string](#query-string)\n - [Form data](#form-data)\n - [Automatic serialization](#-automatic-serialization)\n - [Manual FormData passing](#manual-formdata-passing)\n - [Semver](#semver)\n - [Promises](#promises)\n - [TypeScript](#typescript)\n - [Resources](#resources)\n - [Credits](#credits)\n - [License](#license)\n\n## Features\n\n- Make [XMLHttpRequests](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) from the browser\n- Make [http](http://nodejs.org/api/http.html) requests from node.js\n- Supports the [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) API\n- Intercept request and response\n- Transform request and response data\n- Cancel requests\n- Automatic transforms for JSON data\n- Client side support for protecting against [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n\n## Browser Support\n\n |  |  |  |  |  |\n--- | --- | --- | --- | --- | --- |\nLatest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 11 ✔ |\n\n[](https://saucelabs.com/u/axios)\n\n## Installing\n\nUsing npm:\n\n```bash\n$ npm install axios\n```\n\nUsing bower:\n\n```bash\n$ bower install axios\n```\n\nUsing yarn:\n\n```bash\n$ yarn add axios\n```\n\nUsing jsDelivr CDN:\n\n```html\n<script src=\"https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js\"></script>\n```\n\nUsing unpkg CDN:\n\n```html\n<script src=\"https://unpkg.com/axios/dist/axios.min.js\"></script>\n```\n\n## Example\n\n### note: CommonJS usage\nIn order to gain the TypeScript typings (for intellisense / autocomplete) while using CommonJS imports with `require()` use the following approach:\n\n```js\nconst axios = require('axios').default;\n\n// axios.<method> will now provide autocomplete and parameter typings\n```\n\nPerforming a `GET` request\n\n```js\nconst axios = require('axios').default;\n\n// Make a request for a user with a given ID\naxios.get('/user?ID=12345')\n .then(function (response) {\n // handle success\n console.log(response);\n })\n .catch(function (error) {\n // handle error\n console.log(error);\n })\n .then(function () {\n // always executed\n });\n\n// Optionally the request above could also be done as\naxios.get('/user', {\n params: {\n ID: 12345\n }\n })\n .then(function (response) {\n console.log(response);\n })\n .catch(function (error) {\n console.log(error);\n })\n .then(function () {\n // always executed\n }); \n\n// Want to use async/await? Add the `async` keyword to your outer function/method.\nasync function getUser() {\n try {\n const response = await axios.get('/user?ID=12345');\n console.log(response);\n } catch (error) {\n console.error(error);\n }\n}\n```\n\n> **NOTE:** `async/await` is part of ECMAScript 2017 and is not supported in Internet\n> Explorer and older browsers, so use with caution.\n\nPerforming a `POST` request\n\n```js\naxios.post('/user', {\n firstName: 'Fred',\n lastName: 'Flintstone'\n })\n .then(function (response) {\n console.log(response);\n })\n .catch(function (error) {\n console.log(error);\n });\n```\n\nPerforming multiple concurrent requests\n\n```js\nfunction getUserAccount() {\n return axios.get('/user/12345');\n}\n\nfunction getUserPermissions() {\n return axios.get('/user/12345/permissions');\n}\n\nPromise.all([getUserAccount(), getUserPermissions()])\n .then(function (results) {\n const acct = results[0];\n const perm = results[1];\n });\n```\n\n## axios API\n\nRequests can be made by passing the relevant config to `axios`.\n\n##### axios(config)\n\n```js\n// Send a POST request\naxios({\n method: 'post',\n url: '/user/12345',\n data: {\n firstName: 'Fred',\n lastName: 'Flintstone'\n }\n});\n```\n\n```js\n// GET request for remote image in node.js\naxios({\n method: 'get',\n url: 'http://bit.ly/2mTM3nY',\n responseType: 'stream'\n})\n .then(function (response) {\n response.data.pipe(fs.createWriteStream('ada_lovelace.jpg'))\n });\n```\n\n##### axios(url[, config])\n\n```js\n// Send a GET request (default method)\naxios('/user/12345');\n```\n\n### Request method aliases\n\nFor convenience, aliases have been provided for all common request methods.\n\n##### axios.request(config)\n##### axios.get(url[, config])\n##### axios.delete(url[, config])\n##### axios.head(url[, config])\n##### axios.options(url[, config])\n##### axios.post(url[, data[, config]])\n##### axios.put(url[, data[, config]])\n##### axios.patch(url[, data[, config]])\n\n###### NOTE\nWhen using the alias methods `url`, `method`, and `data` properties don't need to be specified in config.\n\n### Concurrency (Deprecated)\nPlease use `Promise.all` to replace the below functions.\n\nHelper functions for dealing with concurrent requests.\n\naxios.all(iterable)\naxios.spread(callback)\n\n### Creating an instance\n\nYou can create a new instance of axios with a custom config.\n\n##### axios.create([config])\n\n```js\nconst instance = axios.create({\n baseURL: 'https://some-domain.com/api/',\n timeout: 1000,\n headers: {'X-Custom-Header': 'foobar'}\n});\n```\n\n### Instance methods\n\nThe available instance methods are listed below. The specified config will be merged with the instance config.\n\n##### axios#request(config)\n##### axios#get(url[, config])\n##### axios#delete(url[, config])\n##### axios#head(url[, config])\n##### axios#options(url[, config])\n##### axios#post(url[, data[, config]])\n##### axios#put(url[, data[, config]])\n##### axios#patch(url[, data[, config]])\n##### axios#getUri([config])\n\n## Request Config\n\nThese are the available config options for making requests. Only the `url` is required. Requests will default to `GET` if `method` is not specified.\n\n```js\n{\n // `url` is the server URL that will be used for the request\n url: '/user',\n\n // `method` is the request method to be used when making the request\n method: 'get', // default\n\n // `baseURL` will be prepended to `url` unless `url` is absolute.\n // It can be convenient to set `baseURL` for an instance of axios to pass relative URLs\n // to methods of that instance.\n baseURL: 'https://some-domain.com/api/',\n\n // `transformRequest` allows changes to the request data before it is sent to the server\n // This is only applicable for request methods 'PUT', 'POST', 'PATCH' and 'DELETE'\n // The last function in the array must return a string or an instance of Buffer, ArrayBuffer,\n // FormData or Stream\n // You may modify the headers object.\n transformRequest: [function (data, headers) {\n // Do whatever you want to transform the data\n\n return data;\n }],\n\n // `transformResponse` allows changes to the response data to be made before\n // it is passed to then/catch\n transformResponse: [function (data) {\n // Do whatever you want to transform the data\n\n return data;\n }],\n\n // `headers` are custom headers to be sent\n headers: {'X-Requested-With': 'XMLHttpRequest'},\n\n // `params` are the URL parameters to be sent with the request\n // Must be a plain object or a URLSearchParams object\n params: {\n ID: 12345\n },\n\n // `paramsSerializer` is an optional function in charge of serializing `params`\n // (e.g. https://www.npmjs.com/package/qs, http://api.jquery.com/jquery.param/)\n paramsSerializer: function (params) {\n return Qs.stringify(params, {arrayFormat: 'brackets'})\n },\n\n // `data` is the data to be sent as the request body\n // Only applicable for request methods 'PUT', 'POST', 'DELETE , and 'PATCH'\n // When no `transformRequest` is set, must be of one of the following types:\n // - string, plain object, ArrayBuffer, ArrayBufferView, URLSearchParams\n // - Browser only: FormData, File, Blob\n // - Node only: Stream, Buffer\n data: {\n firstName: 'Fred'\n },\n \n // syntax alternative to send data into the body\n // method post\n // only the value is sent, not the key\n data: 'Country=Brasil&City=Belo Horizonte',\n\n // `timeout` specifies the number of milliseconds before the request times out.\n // If the request takes longer than `timeout`, the request will be aborted.\n timeout: 1000, // default is `0` (no timeout)\n\n // `withCredentials` indicates whether or not cross-site Access-Control requests\n // should be made using credentials\n withCredentials: false, // default\n\n // `adapter` allows custom handling of requests which makes testing easier.\n // Return a promise and supply a valid response (see lib/adapters/README.md).\n adapter: function (config) {\n /* ... */\n },\n\n // `auth` indicates that HTTP Basic auth should be used, and supplies credentials.\n // This will set an `Authorization` header, overwriting any existing\n // `Authorization` custom headers you have set using `headers`.\n // Please note that only HTTP Basic auth is configurable through this parameter.\n // For Bearer tokens and such, use `Authorization` custom headers instead.\n auth: {\n username: 'janedoe',\n password: 's00pers3cret'\n },\n\n // `responseType` indicates the type of data that the server will respond with\n // options are: 'arraybuffer', 'document', 'json', 'text', 'stream'\n // browser only: 'blob'\n responseType: 'json', // default\n\n // `responseEncoding` indicates encoding to use for decoding responses (Node.js only)\n // Note: Ignored for `responseType` of 'stream' or client-side requests\n responseEncoding: 'utf8', // default\n\n // `xsrfCookieName` is the name of the cookie to use as a value for xsrf token\n xsrfCookieName: 'XSRF-TOKEN', // default\n\n // `xsrfHeaderName` is the name of the http header that carries the xsrf token value\n xsrfHeaderName: 'X-XSRF-TOKEN', // default\n\n // `onUploadProgress` allows handling of progress events for uploads\n // browser only\n onUploadProgress: function (progressEvent) {\n // Do whatever you want with the native progress event\n },\n\n // `onDownloadProgress` allows handling of progress events for downloads\n // browser only\n onDownloadProgress: function (progressEvent) {\n // Do whatever you want with the native progress event\n },\n\n // `maxContentLength` defines the max size of the http response content in bytes allowed in node.js\n maxContentLength: 2000,\n\n // `maxBodyLength` (Node only option) defines the max size of the http request content in bytes allowed\n maxBodyLength: 2000,\n\n // `validateStatus` defines whether to resolve or reject the promise for a given\n // HTTP response status code. If `validateStatus` returns `true` (or is set to `null`\n // or `undefined`), the promise will be resolved; otherwise, the promise will be\n // rejected.\n validateStatus: function (status) {\n return status >= 200 && status < 300; // default\n },\n\n // `maxRedirects` defines the maximum number of redirects to follow in node.js.\n // If set to 0, no redirects will be followed.\n maxRedirects: 21, // default\n\n // `beforeRedirect` defines a function that will be called before redirect.\n // Use this to adjust the request options upon redirecting,\n // to inspect the latest response headers,\n // or to cancel the request by throwing an error\n // If maxRedirects is set to 0, `beforeRedirect` is not used.\n beforeRedirect: (options, { headers }) => {\n if (options.hostname === \"example.com\") {\n options.auth = \"user:password\";\n }\n };\n\n // `socketPath` defines a UNIX Socket to be used in node.js.\n // e.g. '/var/run/docker.sock' to send requests to the docker daemon.\n // Only either `socketPath` or `proxy` can be specified.\n // If both are specified, `socketPath` is used.\n socketPath: null, // default\n\n // `httpAgent` and `httpsAgent` define a custom agent to be used when performing http\n // and https requests, respectively, in node.js. This allows options to be added like\n // `keepAlive` that are not enabled by default.\n httpAgent: new http.Agent({ keepAlive: true }),\n httpsAgent: new https.Agent({ keepAlive: true }),\n\n // `proxy` defines the hostname, port, and protocol of the proxy server.\n // You can also define your proxy using the conventional `http_proxy` and\n // `https_proxy` environment variables. If you are using environment variables\n // for your proxy configuration, you can also define a `no_proxy` environment\n // variable as a comma-separated list of domains that should not be proxied.\n // Use `false` to disable proxies, ignoring environment variables.\n // `auth` indicates that HTTP Basic auth should be used to connect to the proxy, and\n // supplies credentials.\n // This will set an `Proxy-Authorization` header, overwriting any existing\n // `Proxy-Authorization` custom headers you have set using `headers`.\n // If the proxy server uses HTTPS, then you must set the protocol to `https`. \n proxy: {\n protocol: 'https',\n host: '127.0.0.1',\n port: 9000,\n auth: {\n username: 'mikeymike',\n password: 'rapunz3l'\n }\n },\n\n // `cancelToken` specifies a cancel token that can be used to cancel the request\n // (see Cancellation section below for details)\n cancelToken: new CancelToken(function (cancel) {\n }),\n\n // an alternative way to cancel Axios requests using AbortController\n signal: new AbortController().signal,\n\n // `decompress` indicates whether or not the response body should be decompressed \n // automatically. If set to `true` will also remove the 'content-encoding' header \n // from the responses objects of all decompressed responses\n // - Node only (XHR cannot turn off decompression)\n decompress: true // default\n\n // `insecureHTTPParser` boolean.\n // Indicates where to use an insecure HTTP parser that accepts invalid HTTP headers.\n // This may allow interoperability with non-conformant HTTP implementations.\n // Using the insecure parser should be avoided.\n // see options https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_http_request_url_options_callback\n // see also https://nodejs.org/en/blog/vulnerability/february-2020-security-releases/#strict-http-header-parsing-none\n insecureHTTPParser: undefined // default\n\n // transitional options for backward compatibility that may be removed in the newer versions\n transitional: {\n // silent JSON parsing mode\n // `true` - ignore JSON parsing errors and set response.data to null if parsing failed (old behaviour)\n // `false` - throw SyntaxError if JSON parsing failed (Note: responseType must be set to 'json')\n silentJSONParsing: true, // default value for the current Axios version\n\n // try to parse the response string as JSON even if `responseType` is not 'json'\n forcedJSONParsing: true,\n \n // throw ETIMEDOUT error instead of generic ECONNABORTED on request timeouts\n clarifyTimeoutError: false,\n },\n\n env: {\n // The FormData class to be used to automatically serialize the payload into a FormData object\n FormData: window?.FormData || global?.FormData\n }\n}\n```\n\n## Response Schema\n\nThe response for a request contains the following information.\n\n```js\n{\n // `data` is the response that was provided by the server\n data: {},\n\n // `status` is the HTTP status code from the server response\n status: 200,\n\n // `statusText` is the HTTP status message from the server response\n statusText: 'OK',\n\n // `headers` the HTTP headers that the server responded with\n // All header names are lower cased and can be accessed using the bracket notation.\n // Example: `response.headers['content-type']`\n headers: {},\n\n // `config` is the config that was provided to `axios` for the request\n config: {},\n\n // `request` is the request that generated this response\n // It is the last ClientRequest instance in node.js (in redirects)\n // and an XMLHttpRequest instance in the browser\n request: {}\n}\n```\n\nWhen using `then`, you will receive the response as follows:\n\n```js\naxios.get('/user/12345')\n .then(function (response) {\n console.log(response.data);\n console.log(response.status);\n console.log(response.statusText);\n console.log(response.headers);\n console.log(response.config);\n });\n```\n\nWhen using `catch`, or passing a [rejection callback](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then) as second parameter of `then`, the response will be available through the `error` object as explained in the [Handling Errors](#handling-errors) section.\n\n## Config Defaults\n\nYou can specify config defaults that will be applied to every request.\n\n### Global axios defaults\n\n```js\naxios.defaults.baseURL = 'https://api.example.com';\n\n// Important: If axios is used with multiple domains, the AUTH_TOKEN will be sent to all of them.\n// See below for an example using Custom instance defaults instead.\naxios.defaults.headers.common['Authorization'] = AUTH_TOKEN;\n\naxios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';\n```\n\n### Custom instance defaults\n\n```js\n// Set config defaults when creating the instance\nconst instance = axios.create({\n baseURL: 'https://api.example.com'\n});\n\n// Alter defaults after instance has been created\ninstance.defaults.headers.common['Authorization'] = AUTH_TOKEN;\n```\n\n### Config order of precedence\n\nConfig will be merged with an order of precedence. The order is library defaults found in [lib/defaults.js](https://github.com/axios/axios/blob/master/lib/defaults.js#L28), then `defaults` property of the instance, and finally `config` argument for the request. The latter will take precedence over the former. Here's an example.\n\n```js\n// Create an instance using the config defaults provided by the library\n// At this point the timeout config value is `0` as is the default for the library\nconst instance = axios.create();\n\n// Override timeout default for the library\n// Now all requests using this instance will wait 2.5 seconds before timing out\ninstance.defaults.timeout = 2500;\n\n// Override timeout for this request as it's known to take a long time\ninstance.get('/longRequest', {\n timeout: 5000\n});\n```\n\n## Interceptors\n\nYou can intercept requests or responses before they are handled by `then` or `catch`.\n\n```js\n// Add a request interceptor\naxios.interceptors.request.use(function (config) {\n // Do something before request is sent\n return config;\n }, function (error) {\n // Do something with request error\n return Promise.reject(error);\n });\n\n// Add a response interceptor\naxios.interceptors.response.use(function (response) {\n // Any status code that lie within the range of 2xx cause this function to trigger\n // Do something with response data\n return response;\n }, function (error) {\n // Any status codes that falls outside the range of 2xx cause this function to trigger\n // Do something with response error\n return Promise.reject(error);\n });\n```\n\nIf you need to remove an interceptor later you can.\n\n```js\nconst myInterceptor = axios.interceptors.request.use(function () {/*...*/});\naxios.interceptors.request.eject(myInterceptor);\n```\n\nYou can add interceptors to a custom instance of axios.\n\n```js\nconst instance = axios.create();\ninstance.interceptors.request.use(function () {/*...*/});\n```\n\nWhen you add request interceptors, they are presumed to be asynchronous by default. This can cause a delay\nin the execution of your axios request when the main thread is blocked (a promise is created under the hood for \nthe interceptor and your request gets put on the bottom of the call stack). If your request interceptors are synchronous you can add a flag\nto the options object that will tell axios to run the code synchronously and avoid any delays in request execution.\n\n```js\naxios.interceptors.request.use(function (config) {\n config.headers.test = 'I am only a header!';\n return config;\n}, null, { synchronous: true });\n```\n\nIf you want to execute a particular interceptor based on a runtime check, \nyou can add a `runWhen` function to the options object. The interceptor will not be executed **if and only if** the return\nof `runWhen` is `false`. The function will be called with the config\nobject (don't forget that you can bind your own arguments to it as well.) This can be handy when you have an\nasynchronous request interceptor that only needs to run at certain times.\n\n```js\nfunction onGetCall(config) {\n return config.method === 'get';\n}\naxios.interceptors.request.use(function (config) {\n config.headers.test = 'special get headers';\n return config;\n}, null, { runWhen: onGetCall });\n```\n\n### Multiple Interceptors\n\nGiven you add multiple response interceptors\nand when the response was fulfilled\n- then each interceptor is executed\n- then they are executed in the order they were added\n- then only the last interceptor's result is returned\n- then every interceptor receives the result of it's predecessor\n- and when the fulfillment-interceptor throws\n - then the following fulfillment-interceptor is not called\n - then the following rejection-interceptor is called\n - once caught, another following fulfill-interceptor is called again (just like in a promise chain).\n \nRead [the interceptor tests](./test/specs/interceptors.spec.js) for seeing all this in code.\n\n## Handling Errors\n\n```js\naxios.get('/user/12345')\n .catch(function (error) {\n if (error.response) {\n // The request was made and the server responded with a status code\n // that falls out of the range of 2xx\n console.log(error.response.data);\n console.log(error.response.status);\n console.log(error.response.headers);\n } else if (error.request) {\n // The request was made but no response was received\n // `error.request` is an instance of XMLHttpRequest in the browser and an instance of\n // http.ClientRequest in node.js\n console.log(error.request);\n } else {\n // Something happened in setting up the request that triggered an Error\n console.log('Error', error.message);\n }\n console.log(error.config);\n });\n```\n\nUsing the `validateStatus` config option, you can define HTTP code(s) that should throw an error.\n\n```js\naxios.get('/user/12345', {\n validateStatus: function (status) {\n return status < 500; // Resolve only if the status code is less than 500\n }\n})\n```\n\nUsing `toJSON` you get an object with more information about the HTTP error.\n\n```js\naxios.get('/user/12345')\n .catch(function (error) {\n console.log(error.toJSON());\n });\n```\n\n## Cancellation\n\n### AbortController\n\nStarting from `v0.22.0` Axios supports AbortController to cancel requests in fetch API way:\n\n```js\nconst controller = new AbortController();\n\naxios.get('/foo/bar', {\n signal: controller.signal\n}).then(function(response) {\n //...\n});\n// cancel the request\ncontroller.abort()\n```\n\n### CancelToken `👎deprecated`\n\nYou can also cancel a request using a *CancelToken*.\n\n> The axios cancel token API is based on the withdrawn [cancelable promises proposal](https://github.com/tc39/proposal-cancelable-promises).\n\n> This API is deprecated since v0.22.0 and shouldn't be used in new projects\n\nYou can create a cancel token using the `CancelToken.source` factory as shown below:\n\n```js\nconst CancelToken = axios.CancelToken;\nconst source = CancelToken.source();\n\naxios.get('/user/12345', {\n cancelToken: source.token\n}).catch(function (thrown) {\n if (axios.isCancel(thrown)) {\n console.log('Request canceled', thrown.message);\n } else {\n // handle error\n }\n});\n\naxios.post('/user/12345', {\n name: 'new name'\n}, {\n cancelToken: source.token\n})\n\n// cancel the request (the message parameter is optional)\nsource.cancel('Operation canceled by the user.');\n```\n\nYou can also create a cancel token by passing an executor function to the `CancelToken` constructor:\n\n```js\nconst CancelToken = axios.CancelToken;\nlet cancel;\n\naxios.get('/user/12345', {\n cancelToken: new CancelToken(function executor(c) {\n // An executor function receives a cancel function as a parameter\n cancel = c;\n })\n});\n\n// cancel the request\ncancel();\n```\n\n> Note: you can cancel several requests with the same cancel token/abort controller.\n> If a cancellation token is already cancelled at the moment of starting an Axios request, then the request is cancelled immediately, without any attempts to make real request.\n\n> During the transition period, you can use both cancellation APIs, even for the same request:\n\n## Using application/x-www-form-urlencoded format\n\nBy default, axios serializes JavaScript objects to `JSON`. To send data in the `application/x-www-form-urlencoded` format instead, you can use one of the following options.\n\n### Browser\n\nIn a browser, you can use the [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams) API as follows:\n\n```js\nconst params = new URLSearchParams();\nparams.append('param1', 'value1');\nparams.append('param2', 'value2');\naxios.post('/foo', params);\n```\n\n> Note that `URLSearchParams` is not supported by all browsers (see [caniuse.com](http://www.caniuse.com/#feat=urlsearchparams)), but there is a [polyfill](https://github.com/WebReflection/url-search-params) available (make sure to polyfill the global environment).\n\nAlternatively, you can encode data using the [`qs`](https://github.com/ljharb/qs) library:\n\n```js\nconst qs = require('qs');\naxios.post('/foo', qs.stringify({ 'bar': 123 }));\n```\n\nOr in another way (ES6),\n\n```js\nimport qs from 'qs';\nconst data = { 'bar': 123 };\nconst options = {\n method: 'POST',\n headers: { 'content-type': 'application/x-www-form-urlencoded' },\n data: qs.stringify(data),\n url,\n};\naxios(options);\n```\n\n### Node.js\n\n#### Query string\n\nIn node.js, you can use the [`querystring`](https://nodejs.org/api/querystring.html) module as follows:\n\n```js\nconst querystring = require('querystring');\naxios.post('http://something.com/', querystring.stringify({ foo: 'bar' }));\n```\n\nor ['URLSearchParams'](https://nodejs.org/api/url.html#url_class_urlsearchparams) from ['url module'](https://nodejs.org/api/url.html) as follows:\n\n```js\nconst url = require('url');\nconst params = new url.URLSearchParams({ foo: 'bar' });\naxios.post('http://something.com/', params.toString());\n```\n\nYou can also use the [`qs`](https://github.com/ljharb/qs) library.\n\n> NOTE: \n> The `qs` library is preferable if you need to stringify nested objects, as the `querystring` method has [known issues](https://github.com/nodejs/node-v0.x-archive/issues/1665) with that use case.\n\n#### Form data\n\n##### 🆕 Automatic serialization\n\nStarting from `v0.27.0`, Axios supports automatic object serialization to a FormData object if the request `Content-Type` \nheader is set to `multipart/form-data`.\n\nThe following request will submit the data in a FormData format (Browser & Node.js):\n\n```js\nimport axios from 'axios';\n\naxios.post('https://httpbin.org/post', {x: 1}, {\n headers: {\n 'Content-Type': 'multipart/form-data'\n }\n}).then(({data})=> console.log(data));\n```\n\nIn the `node.js` build, the ([`form-data`](https://github.com/form-data/form-data)) polyfill is used by default.\n\nYou can overload the FormData class by setting the `env.FormData` config variable,\nbut you probably won't need it in most cases:\n\n```js\nconst axios= require('axios');\nvar FormData = require('form-data');\n\naxios.post('https://httpbin.org/post', {x: 1, buf: new Buffer(10)}, {\n headers: {\n 'Content-Type': 'multipart/form-data'\n }\n}).then(({data})=> console.log(data));\n```\n\nAxios FormData serializer supports some special endings to perform the following operations:\n\n- `{}` - serialize the value with JSON.stringify\n- `[]` - unwrap the array like object as separate fields with the same key \n\n```js\nconst axios= require('axios');\n\naxios.post('https://httpbin.org/post', {\n 'myObj{}': {x: 1, s: \"foo\"},\n 'files[]': document.querySelector('#fileInput').files \n}, {\n headers: {\n 'Content-Type': 'multipart/form-data'\n }\n}).then(({data})=> console.log(data));\n```\n\nAxios supports the following shortcut methods: `postForm`, `putForm`, `patchForm`\nwhich are just the corresponding http methods with a header preset: `Content-Type`: `multipart/form-data`.\n\nFileList object can be passed directly:\n\n```js\nawait axios.postForm('https://httpbin.org/post', document.querySelector('#fileInput').files)\n```\n\nAll files will be sent with the same field names: `files[]`;\n\n##### Manual FormData passing\n \nIn node.js, you can use the [`form-data`](https://github.com/form-data/form-data) library as follows:\n\n```js\nconst FormData = require('form-data');\n \nconst form = new FormData();\nform.append('my_field', 'my value');\nform.append('my_buffer', new Buffer(10));\nform.append('my_file', fs.createReadStream('/foo/bar.jpg'));\n\naxios.post('https://example.com', form)\n```\n\n## Semver\n\nUntil axios reaches a `1.0` release, breaking changes will be released with a new minor version. For example `0.5.1`, and `0.5.4` will have the same API, but `0.6.0` will have breaking changes.\n\n## Promises\n\naxios depends on a native ES6 Promise implementation to be [supported](http://caniuse.com/promises).\nIf your environment doesn't support ES6 Promises, you can [polyfill](https://github.com/jakearchibald/es6-promise).\n\n## TypeScript\n\naxios includes [TypeScript](http://typescriptlang.org) definitions and a type guard for axios errors.\n\n```typescript\nlet user: User = null;\ntry {\n const { data } = await axios.get('/user?ID=12345');\n user = data.userDetails;\n} catch (error) {\n if (axios.isAxiosError(error)) {\n handleAxiosError(error);\n } else {\n handleUnexpectedError(error);\n }\n}\n```\n\n## Online one-click setup\n\nYou can use Gitpod an online IDE(which is free for Open Source) for contributing or running the examples online.\n\n[](https://gitpod.io/#https://github.com/axios/axios/blob/master/examples/server.js)\n\n## Resources\n\n* [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)\n* [Upgrade Guide](https://github.com/axios/axios/blob/master/UPGRADE_GUIDE.md)\n* [Ecosystem](https://github.com/axios/axios/blob/master/ECOSYSTEM.md)\n* [Contributing Guide](https://github.com/axios/axios/blob/master/CONTRIBUTING.md)\n* [Code of Conduct](https://github.com/axios/axios/blob/master/CODE_OF_CONDUCT.md)\n\n## Credits\n\naxios is heavily inspired by the [$http service](https://docs.angularjs.org/api/ng/service/$http) provided in [AngularJS](https://angularjs.org/). Ultimately axios is an effort to provide a standalone `$http`-like service for use outside of AngularJS.\n\n## License\n\n[MIT](LICENSE)\n# <img src=\"./logo.png\" alt=\"bn.js\" width=\"160\" height=\"160\" />\n\n> BigNum in pure javascript\n\n[](http://travis-ci.org/indutny/bn.js)\n\n## Install\n`npm install --save bn.js`\n\n## Usage\n\n```js\nconst BN = require('bn.js');\n\nvar a = new BN('dead', 16);\nvar b = new BN('101010', 2);\n\nvar res = a.add(b);\nconsole.log(res.toString(10)); // 57047\n```\n\n**Note**: decimals are not supported in this library.\n\n## Notation\n\n### Prefixes\n\nThere are several prefixes to instructions that affect the way the work. Here\nis the list of them in the order of appearance in the function name:\n\n* `i` - perform operation in-place, storing the result in the host object (on\n which the method was invoked). Might be used to avoid number allocation costs\n* `u` - unsigned, ignore the sign of operands when performing operation, or\n always return positive value. Second case applies to reduction operations\n like `mod()`. In such cases if the result will be negative - modulo will be\n added to the result to make it positive\n\n### Postfixes\n\n* `n` - the argument of the function must be a plain JavaScript\n Number. Decimals are not supported.\n* `rn` - both argument and return value of the function are plain JavaScript\n Numbers. Decimals are not supported.\n\n### Examples\n\n* `a.iadd(b)` - perform addition on `a` and `b`, storing the result in `a`\n* `a.umod(b)` - reduce `a` modulo `b`, returning positive value\n* `a.iushln(13)` - shift bits of `a` left by 13\n\n## Instructions\n\nPrefixes/postfixes are put in parens at the of the line. `endian` - could be\neither `le` (little-endian) or `be` (big-endian).\n\n### Utilities\n\n* `a.clone()` - clone number\n* `a.toString(base, length)` - convert to base-string and pad with zeroes\n* `a.toNumber()` - convert to Javascript Number (limited to 53 bits)\n* `a.toJSON()` - convert to JSON compatible hex string (alias of `toString(16)`)\n* `a.toArray(endian, length)` - convert to byte `Array`, and optionally zero\n pad to length, throwing if already exceeding\n* `a.toArrayLike(type, endian, length)` - convert to an instance of `type`,\n which must behave like an `Array`\n* `a.toBuffer(endian, length)` - convert to Node.js Buffer (if available). For\n compatibility with browserify and similar tools, use this instead:\n `a.toArrayLike(Buffer, endian, length)`\n* `a.bitLength()` - get number of bits occupied\n* `a.zeroBits()` - return number of less-significant consequent zero bits\n (example: `1010000` has 4 zero bits)\n* `a.byteLength()` - return number of bytes occupied\n* `a.isNeg()` - true if the number is negative\n* `a.isEven()` - no comments\n* `a.isOdd()` - no comments\n* `a.isZero()` - no comments\n* `a.cmp(b)` - compare numbers and return `-1` (a `<` b), `0` (a `==` b), or `1` (a `>` b)\n depending on the comparison result (`ucmp`, `cmpn`)\n* `a.lt(b)` - `a` less than `b` (`n`)\n* `a.lte(b)` - `a` less than or equals `b` (`n`)\n* `a.gt(b)` - `a` greater than `b` (`n`)\n* `a.gte(b)` - `a` greater than or equals `b` (`n`)\n* `a.eq(b)` - `a` equals `b` (`n`)\n* `a.toTwos(width)` - convert to two's complement representation, where `width` is bit width\n* `a.fromTwos(width)` - convert from two's complement representation, where `width` is the bit width\n* `BN.isBN(object)` - returns true if the supplied `object` is a BN.js instance\n* `BN.max(a, b)` - return `a` if `a` bigger than `b`\n* `BN.min(a, b)` - return `a` if `a` less than `b`\n\n### Arithmetics\n\n* `a.neg()` - negate sign (`i`)\n* `a.abs()` - absolute value (`i`)\n* `a.add(b)` - addition (`i`, `n`, `in`)\n* `a.sub(b)` - subtraction (`i`, `n`, `in`)\n* `a.mul(b)` - multiply (`i`, `n`, `in`)\n* `a.sqr()` - square (`i`)\n* `a.pow(b)` - raise `a` to the power of `b`\n* `a.div(b)` - divide (`divn`, `idivn`)\n* `a.mod(b)` - reduct (`u`, `n`) (but no `umodn`)\n* `a.divmod(b)` - quotient and modulus obtained by dividing\n* `a.divRound(b)` - rounded division\n\n### Bit operations\n\n* `a.or(b)` - or (`i`, `u`, `iu`)\n* `a.and(b)` - and (`i`, `u`, `iu`, `andln`) (NOTE: `andln` is going to be replaced\n with `andn` in future)\n* `a.xor(b)` - xor (`i`, `u`, `iu`)\n* `a.setn(b, value)` - set specified bit to `value`\n* `a.shln(b)` - shift left (`i`, `u`, `iu`)\n* `a.shrn(b)` - shift right (`i`, `u`, `iu`)\n* `a.testn(b)` - test if specified bit is set\n* `a.maskn(b)` - clear bits with indexes higher or equal to `b` (`i`)\n* `a.bincn(b)` - add `1 << b` to the number\n* `a.notn(w)` - not (for the width specified by `w`) (`i`)\n\n### Reduction\n\n* `a.gcd(b)` - GCD\n* `a.egcd(b)` - Extended GCD results (`{ a: ..., b: ..., gcd: ... }`)\n* `a.invm(b)` - inverse `a` modulo `b`\n\n## Fast reduction\n\nWhen doing lots of reductions using the same modulo, it might be beneficial to\nuse some tricks: like [Montgomery multiplication][0], or using special algorithm\nfor [Mersenne Prime][1].\n\n### Reduction context\n\nTo enable this tricks one should create a reduction context:\n\n```js\nvar red = BN.red(num);\n```\nwhere `num` is just a BN instance.\n\nOr:\n\n```js\nvar red = BN.red(primeName);\n```\n\nWhere `primeName` is either of these [Mersenne Primes][1]:\n\n* `'k256'`\n* `'p224'`\n* `'p192'`\n* `'p25519'`\n\nOr:\n\n```js\nvar red = BN.mont(num);\n```\n\nTo reduce numbers with [Montgomery trick][0]. `.mont()` is generally faster than\n`.red(num)`, but slower than `BN.red(primeName)`.\n\n### Converting numbers\n\nBefore performing anything in reduction context - numbers should be converted\nto it. Usually, this means that one should:\n\n* Convert inputs to reducted ones\n* Operate on them in reduction context\n* Convert outputs back from the reduction context\n\nHere is how one may convert numbers to `red`:\n\n```js\nvar redA = a.toRed(red);\n```\nWhere `red` is a reduction context created using instructions above\n\nHere is how to convert them back:\n\n```js\nvar a = redA.fromRed();\n```\n\n### Red instructions\n\nMost of the instructions from the very start of this readme have their\ncounterparts in red context:\n\n* `a.redAdd(b)`, `a.redIAdd(b)`\n* `a.redSub(b)`, `a.redISub(b)`\n* `a.redShl(num)`\n* `a.redMul(b)`, `a.redIMul(b)`\n* `a.redSqr()`, `a.redISqr()`\n* `a.redSqrt()` - square root modulo reduction context's prime\n* `a.redInvm()` - modular inverse of the number\n* `a.redNeg()`\n* `a.redPow(b)` - modular exponentiation\n\n### Number Size\n\nOptimized for elliptic curves that work with 256-bit numbers.\nThere is no limitation on the size of the numbers.\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\n[0]: https://en.wikipedia.org/wiki/Montgomery_modular_multiplication\n[1]: https://en.wikipedia.org/wiki/Mersenne_prime\n# js-sha256\n[](https://travis-ci.org/emn178/js-sha256)\n[](https://coveralls.io/r/emn178/js-sha256?branch=master)\n[](https://cdnjs.com/libraries/js-sha256/) \n[](https://nodei.co/npm/js-sha256/) \nA simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.\n\n## Demo\n[SHA256 Online](http://emn178.github.io/online-tools/sha256.html) \n[SHA224 Online](http://emn178.github.io/online-tools/sha224.html) \n\n## Download\n[Compress](https://raw.github.com/emn178/js-sha256/master/build/sha256.min.js) \n[Uncompress](https://raw.github.com/emn178/js-sha256/master/src/sha256.js)\n\n## Installation\nYou can also install js-sha256 by using Bower.\n\n bower install js-sha256\n\nFor node.js, you can use this command to install:\n\n npm install js-sha256\n\n## Usage\nYou could use like this:\n```JavaScript\nsha256('Message to hash');\nsha224('Message to hash');\n\nvar hash = sha256.create();\nhash.update('Message to hash');\nhash.hex();\n\nvar hash2 = sha256.update('Message to hash');\nhash2.update('Message2 to hash');\nhash2.array();\n\n// HMAC\nsha256.hmac('key', 'Message to hash');\nsha224.hmac('key', 'Message to hash');\n\nvar hash = sha256.hmac.create('key');\nhash.update('Message to hash');\nhash.hex();\n\nvar hash2 = sha256.hmac.update('key', 'Message to hash');\nhash2.update('Message2 to hash');\nhash2.array();\n```\nIf you use node.js, you should require the module first:\n```JavaScript\nvar sha256 = require('js-sha256');\n```\nor \n```JavaScript\nvar sha256 = require('js-sha256').sha256;\nvar sha224 = require('js-sha256').sha224;\n```\nIt supports AMD:\n```JavaScript\nrequire(['your/path/sha256.js'], function(sha256) {\n// ...\n});\n```\nor TypeScript\n```TypeScript\nimport { sha256, sha224 } from 'js-sha256';\n```\n## Example\n```JavaScript\nsha256(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855\nsha256('The quick brown fox jumps over the lazy dog'); // d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592\nsha256('The quick brown fox jumps over the lazy dog.'); // ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c\nsha224(''); // d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f\nsha224('The quick brown fox jumps over the lazy dog'); // 730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525\nsha224('The quick brown fox jumps over the lazy dog.'); // 619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4c\n\n// It also supports UTF-8 encoding\nsha256('中文'); // 72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21\nsha224('中文'); // dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4\n\n// It also supports byte `Array`, `Uint8Array`, `ArrayBuffer` input\nsha256([]); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855\nsha256(new Uint8Array([211, 212])); // 182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f\n\n// Different output\nsha256(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855\nsha256.hex(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855\nsha256.array(''); // [227, 176, 196, 66, 152, 252, 28, 20, 154, 251, 244, 200, 153, 111, 185, 36, 39, 174, 65, 228, 100, 155, 147, 76, 164, 149, 153, 27, 120, 82, 184, 85]\nsha256.digest(''); // [227, 176, 196, 66, 152, 252, 28, 20, 154, 251, 244, 200, 153, 111, 185, 36, 39, 174, 65, 228, 100, 155, 147, 76, 164, 149, 153, 27, 120, 82, 184, 85]\nsha256.arrayBuffer(''); // ArrayBuffer\n```\n\n## License\nThe project is released under the [MIT license](http://www.opensource.org/licenses/MIT).\n\n## Contact\nThe project's website is located at https://github.com/emn178/js-sha256 \nAuthor: Chen, Yi-Cyuan (emn178@gmail.com)\n# simple-concat [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/simple-concat/master.svg\n[travis-url]: https://travis-ci.org/feross/simple-concat\n[npm-image]: https://img.shields.io/npm/v/simple-concat.svg\n[npm-url]: https://npmjs.org/package/simple-concat\n[downloads-image]: https://img.shields.io/npm/dm/simple-concat.svg\n[downloads-url]: https://npmjs.org/package/simple-concat\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n### Super-minimalist version of [`concat-stream`](https://github.com/maxogden/concat-stream). Less than 15 lines!\n\n## install\n\n```\nnpm install simple-concat\n```\n\n## usage\n\nThis example is longer than the implementation.\n\n```js\nvar s = new stream.PassThrough()\nconcat(s, function (err, buf) {\n if (err) throw err\n console.error(buf)\n})\ns.write('abc')\nsetTimeout(function () {\n s.write('123')\n}, 10)\nsetTimeout(function () {\n s.write('456')\n}, 20)\nsetTimeout(function () {\n s.end('789')\n}, 30)\n```\n\n## license\n\nMIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).\n# bl *(BufferList)*\n\n[](https://travis-ci.com/rvagg/bl/)\n\n**A Node.js Buffer list collector, reader and streamer thingy.**\n\n[](https://nodei.co/npm/bl/)\n\n**bl** is a storage object for collections of Node Buffers, exposing them with the main Buffer readable API. Also works as a duplex stream so you can collect buffers from a stream that emits them and emit buffers to a stream that consumes them!\n\nThe original buffers are kept intact and copies are only done as necessary. Any reads that require the use of a single original buffer will return a slice of that buffer only (which references the same memory as the original buffer). Reads that span buffers perform concatenation as required and return the results transparently.\n\n```js\nconst { BufferList } = require('bl')\n\nconst bl = new BufferList()\nbl.append(Buffer.from('abcd'))\nbl.append(Buffer.from('efg'))\nbl.append('hi') // bl will also accept & convert Strings\nbl.append(Buffer.from('j'))\nbl.append(Buffer.from([ 0x3, 0x4 ]))\n\nconsole.log(bl.length) // 12\n\nconsole.log(bl.slice(0, 10).toString('ascii')) // 'abcdefghij'\nconsole.log(bl.slice(3, 10).toString('ascii')) // 'defghij'\nconsole.log(bl.slice(3, 6).toString('ascii')) // 'def'\nconsole.log(bl.slice(3, 8).toString('ascii')) // 'defgh'\nconsole.log(bl.slice(5, 10).toString('ascii')) // 'fghij'\n\nconsole.log(bl.indexOf('def')) // 3\nconsole.log(bl.indexOf('asdf')) // -1\n\n// or just use toString!\nconsole.log(bl.toString()) // 'abcdefghij\\u0003\\u0004'\nconsole.log(bl.toString('ascii', 3, 8)) // 'defgh'\nconsole.log(bl.toString('ascii', 5, 10)) // 'fghij'\n\n// other standard Buffer readables\nconsole.log(bl.readUInt16BE(10)) // 0x0304\nconsole.log(bl.readUInt16LE(10)) // 0x0403\n```\n\nGive it a callback in the constructor and use it just like **[concat-stream](https://github.com/maxogden/node-concat-stream)**:\n\n```js\nconst { BufferListStream } = require('bl')\nconst fs = require('fs')\n\nfs.createReadStream('README.md')\n .pipe(BufferListStream((err, data) => { // note 'new' isn't strictly required\n // `data` is a complete Buffer object containing the full data\n console.log(data.toString())\n }))\n```\n\nNote that when you use the *callback* method like this, the resulting `data` parameter is a concatenation of all `Buffer` objects in the list. If you want to avoid the overhead of this concatenation (in cases of extreme performance consciousness), then avoid the *callback* method and just listen to `'end'` instead, like a standard Stream.\n\nOr to fetch a URL using [hyperquest](https://github.com/substack/hyperquest) (should work with [request](http://github.com/mikeal/request) and even plain Node http too!):\n\n```js\nconst hyperquest = require('hyperquest')\nconst { BufferListStream } = require('bl')\n\nconst url = 'https://raw.github.com/rvagg/bl/master/README.md'\n\nhyperquest(url).pipe(BufferListStream((err, data) => {\n console.log(data.toString())\n}))\n```\n\nOr, use it as a readable stream to recompose a list of Buffers to an output source:\n\n```js\nconst { BufferListStream } = require('bl')\nconst fs = require('fs')\n\nvar bl = new BufferListStream()\nbl.append(Buffer.from('abcd'))\nbl.append(Buffer.from('efg'))\nbl.append(Buffer.from('hi'))\nbl.append(Buffer.from('j'))\n\nbl.pipe(fs.createWriteStream('gibberish.txt'))\n```\n\n## API\n\n * <a href=\"#ctor\"><code><b>new BufferList([ buf ])</b></code></a>\n * <a href=\"#isBufferList\"><code><b>BufferList.isBufferList(obj)</b></code></a>\n * <a href=\"#length\"><code>bl.<b>length</b></code></a>\n * <a href=\"#append\"><code>bl.<b>append(buffer)</b></code></a>\n * <a href=\"#get\"><code>bl.<b>get(index)</b></code></a>\n * <a href=\"#indexOf\"><code>bl.<b>indexOf(value[, byteOffset][, encoding])</b></code></a>\n * <a href=\"#slice\"><code>bl.<b>slice([ start[, end ] ])</b></code></a>\n * <a href=\"#shallowSlice\"><code>bl.<b>shallowSlice([ start[, end ] ])</b></code></a>\n * <a href=\"#copy\"><code>bl.<b>copy(dest, [ destStart, [ srcStart [, srcEnd ] ] ])</b></code></a>\n * <a href=\"#duplicate\"><code>bl.<b>duplicate()</b></code></a>\n * <a href=\"#consume\"><code>bl.<b>consume(bytes)</b></code></a>\n * <a href=\"#toString\"><code>bl.<b>toString([encoding, [ start, [ end ]]])</b></code></a>\n * <a href=\"#readXX\"><code>bl.<b>readDoubleBE()</b></code>, <code>bl.<b>readDoubleLE()</b></code>, <code>bl.<b>readFloatBE()</b></code>, <code>bl.<b>readFloatLE()</b></code>, <code>bl.<b>readInt32BE()</b></code>, <code>bl.<b>readInt32LE()</b></code>, <code>bl.<b>readUInt32BE()</b></code>, <code>bl.<b>readUInt32LE()</b></code>, <code>bl.<b>readInt16BE()</b></code>, <code>bl.<b>readInt16LE()</b></code>, <code>bl.<b>readUInt16BE()</b></code>, <code>bl.<b>readUInt16LE()</b></code>, <code>bl.<b>readInt8()</b></code>, <code>bl.<b>readUInt8()</b></code></a>\n * <a href=\"#ctorStream\"><code><b>new BufferListStream([ callback ])</b></code></a>\n\n--------------------------------------------------------\n<a name=\"ctor\"></a>\n### new BufferList([ Buffer | Buffer array | BufferList | BufferList array | String ])\nNo arguments are _required_ for the constructor, but you can initialise the list by passing in a single `Buffer` object or an array of `Buffer` objects.\n\n`new` is not strictly required, if you don't instantiate a new object, it will be done automatically for you so you can create a new instance simply with:\n\n```js\nconst { BufferList } = require('bl')\nconst bl = BufferList()\n\n// equivalent to:\n\nconst { BufferList } = require('bl')\nconst bl = new BufferList()\n```\n\n--------------------------------------------------------\n<a name=\"isBufferList\"></a>\n### BufferList.isBufferList(obj)\nDetermines if the passed object is a `BufferList`. It will return `true` if the passed object is an instance of `BufferList` **or** `BufferListStream` and `false` otherwise.\n\nN.B. this won't return `true` for `BufferList` or `BufferListStream` instances created by versions of this library before this static method was added.\n\n--------------------------------------------------------\n<a name=\"length\"></a>\n### bl.length\nGet the length of the list in bytes. This is the sum of the lengths of all of the buffers contained in the list, minus any initial offset for a semi-consumed buffer at the beginning. Should accurately represent the total number of bytes that can be read from the list.\n\n--------------------------------------------------------\n<a name=\"append\"></a>\n### bl.append(Buffer | Buffer array | BufferList | BufferList array | String)\n`append(buffer)` adds an additional buffer or BufferList to the internal list. `this` is returned so it can be chained.\n\n--------------------------------------------------------\n<a name=\"get\"></a>\n### bl.get(index)\n`get()` will return the byte at the specified index.\n\n--------------------------------------------------------\n<a name=\"indexOf\"></a>\n### bl.indexOf(value[, byteOffset][, encoding])\n`get()` will return the byte at the specified index.\n`indexOf()` method returns the first index at which a given element can be found in the BufferList, or -1 if it is not present.\n\n--------------------------------------------------------\n<a name=\"slice\"></a>\n### bl.slice([ start, [ end ] ])\n`slice()` returns a new `Buffer` object containing the bytes within the range specified. Both `start` and `end` are optional and will default to the beginning and end of the list respectively.\n\nIf the requested range spans a single internal buffer then a slice of that buffer will be returned which shares the original memory range of that Buffer. If the range spans multiple buffers then copy operations will likely occur to give you a uniform Buffer.\n\n--------------------------------------------------------\n<a name=\"shallowSlice\"></a>\n### bl.shallowSlice([ start, [ end ] ])\n`shallowSlice()` returns a new `BufferList` object containing the bytes within the range specified. Both `start` and `end` are optional and will default to the beginning and end of the list respectively.\n\nNo copies will be performed. All buffers in the result share memory with the original list.\n\n--------------------------------------------------------\n<a name=\"copy\"></a>\n### bl.copy(dest, [ destStart, [ srcStart [, srcEnd ] ] ])\n`copy()` copies the content of the list in the `dest` buffer, starting from `destStart` and containing the bytes within the range specified with `srcStart` to `srcEnd`. `destStart`, `start` and `end` are optional and will default to the beginning of the `dest` buffer, and the beginning and end of the list respectively.\n\n--------------------------------------------------------\n<a name=\"duplicate\"></a>\n### bl.duplicate()\n`duplicate()` performs a **shallow-copy** of the list. The internal Buffers remains the same, so if you change the underlying Buffers, the change will be reflected in both the original and the duplicate. This method is needed if you want to call `consume()` or `pipe()` and still keep the original list.Example:\n\n```js\nvar bl = new BufferListStream()\n\nbl.append('hello')\nbl.append(' world')\nbl.append('\\n')\n\nbl.duplicate().pipe(process.stdout, { end: false })\n\nconsole.log(bl.toString())\n```\n\n--------------------------------------------------------\n<a name=\"consume\"></a>\n### bl.consume(bytes)\n`consume()` will shift bytes *off the start of the list*. The number of bytes consumed don't need to line up with the sizes of the internal Buffers—initial offsets will be calculated accordingly in order to give you a consistent view of the data.\n\n--------------------------------------------------------\n<a name=\"toString\"></a>\n### bl.toString([encoding, [ start, [ end ]]])\n`toString()` will return a string representation of the buffer. The optional `start` and `end` arguments are passed on to `slice()`, while the `encoding` is passed on to `toString()` of the resulting Buffer. See the [Buffer#toString()](http://nodejs.org/docs/latest/api/buffer.html#buffer_buf_tostring_encoding_start_end) documentation for more information.\n\n--------------------------------------------------------\n<a name=\"readXX\"></a>\n### bl.readDoubleBE(), bl.readDoubleLE(), bl.readFloatBE(), bl.readFloatLE(), bl.readInt32BE(), bl.readInt32LE(), bl.readUInt32BE(), bl.readUInt32LE(), bl.readInt16BE(), bl.readInt16LE(), bl.readUInt16BE(), bl.readUInt16LE(), bl.readInt8(), bl.readUInt8()\n\nAll of the standard byte-reading methods of the `Buffer` interface are implemented and will operate across internal Buffer boundaries transparently.\n\nSee the <b><code>[Buffer](http://nodejs.org/docs/latest/api/buffer.html)</code></b> documentation for how these work.\n\n--------------------------------------------------------\n<a name=\"ctorStream\"></a>\n### new BufferListStream([ callback | Buffer | Buffer array | BufferList | BufferList array | String ])\n**BufferListStream** is a Node **[Duplex Stream](http://nodejs.org/docs/latest/api/stream.html#stream_class_stream_duplex)**, so it can be read from and written to like a standard Node stream. You can also `pipe()` to and from a **BufferListStream** instance.\n\nThe constructor takes an optional callback, if supplied, the callback will be called with an error argument followed by a reference to the **bl** instance, when `bl.end()` is called (i.e. from a piped stream). This is a convenient method of collecting the entire contents of a stream, particularly when the stream is *chunky*, such as a network stream.\n\nNormally, no arguments are required for the constructor, but you can initialise the list by passing in a single `Buffer` object or an array of `Buffer` object.\n\n`new` is not strictly required, if you don't instantiate a new object, it will be done automatically for you so you can create a new instance simply with:\n\n```js\nconst { BufferListStream } = require('bl')\nconst bl = BufferListStream()\n\n// equivalent to:\n\nconst { BufferListStream } = require('bl')\nconst bl = new BufferListStream()\n```\n\nN.B. For backwards compatibility reasons, `BufferListStream` is the **default** export when you `require('bl')`:\n\n```js\nconst { BufferListStream } = require('bl')\n// equivalent to:\nconst BufferListStream = require('bl')\n```\n\n--------------------------------------------------------\n\n## Contributors\n\n**bl** is brought to you by the following hackers:\n\n * [Rod Vagg](https://github.com/rvagg)\n * [Matteo Collina](https://github.com/mcollina)\n * [Jarett Cruger](https://github.com/jcrugzz)\n\n<a name=\"license\"></a>\n## License & copyright\n\nCopyright (c) 2013-2019 bl contributors (listed above).\n\nbl is licensed under the MIT license. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.\n# axios // env\n\nThe `data.js` file is updated automatically when the package version is upgrading. Please do not edit it manually.\n# graceful-fs\n\ngraceful-fs functions as a drop-in replacement for the fs module,\nmaking various improvements.\n\nThe improvements are meant to normalize behavior across different\nplatforms and environments, and to make filesystem access more\nresilient to errors.\n\n## Improvements over [fs module](https://nodejs.org/api/fs.html)\n\n* Queues up `open` and `readdir` calls, and retries them once\n something closes if there is an EMFILE error from too many file\n descriptors.\n* fixes `lchmod` for Node versions prior to 0.6.2.\n* implements `fs.lutimes` if possible. Otherwise it becomes a noop.\n* ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or\n `lchown` if the user isn't root.\n* makes `lchmod` and `lchown` become noops, if not available.\n* retries reading a file if `read` results in EAGAIN error.\n\nOn Windows, it retries renaming a file for up to one second if `EACCESS`\nor `EPERM` error occurs, likely because antivirus software has locked\nthe directory.\n\n## USAGE\n\n```javascript\n// use just like fs\nvar fs = require('graceful-fs')\n\n// now go and do stuff with it...\nfs.readFile('some-file-or-whatever', (err, data) => {\n // Do stuff here.\n})\n```\n\n## Sync methods\n\nThis module cannot intercept or handle `EMFILE` or `ENFILE` errors from sync\nmethods. If you use sync methods which open file descriptors then you are\nresponsible for dealing with any errors.\n\nThis is a known limitation, not a bug.\n\n## Global Patching\n\nIf you want to patch the global fs module (or any other fs-like\nmodule) you can do this:\n\n```javascript\n// Make sure to read the caveat below.\nvar realFs = require('fs')\nvar gracefulFs = require('graceful-fs')\ngracefulFs.gracefulify(realFs)\n```\n\nThis should only ever be done at the top-level application layer, in\norder to delay on EMFILE errors from any fs-using dependencies. You\nshould **not** do this in a library, because it can cause unexpected\ndelays in other parts of the program.\n\n## Changes\n\nThis module is fairly stable at this point, and used by a lot of\nthings. That being said, because it implements a subtle behavior\nchange in a core part of the node API, even modest changes can be\nextremely breaking, and the versioning is thus biased towards\nbumping the major when in doubt.\n\nThe main change between major versions has been switching between\nproviding a fully-patched `fs` module vs monkey-patching the node core\nbuiltin, and the approach by which a non-monkey-patched `fs` was\ncreated.\n\nThe goal is to trade `EMFILE` errors for slower fs operations. So, if\nyou try to open a zillion files, rather than crashing, `open`\noperations will be queued up and wait for something else to `close`.\n\nThere are advantages to each approach. Monkey-patching the fs means\nthat no `EMFILE` errors can possibly occur anywhere in your\napplication, because everything is using the same core `fs` module,\nwhich is patched. However, it can also obviously cause undesirable\nside-effects, especially if the module is loaded multiple times.\n\nImplementing a separate-but-identical patched `fs` module is more\nsurgical (and doesn't run the risk of patching multiple times), but\nalso imposes the challenge of keeping in sync with the core module.\n\nThe current approach loads the `fs` module, and then creates a\nlookalike object that has all the same methods, except a few that are\npatched. It is safe to use in all versions of Node from 0.8 through\n7.0.\n\n### v4\n\n* Do not monkey-patch the fs module. This module may now be used as a\n drop-in dep, and users can opt into monkey-patching the fs builtin\n if their app requires it.\n\n### v3\n\n* Monkey-patch fs, because the eval approach no longer works on recent\n node.\n* fixed possible type-error throw if rename fails on windows\n* verify that we *never* get EMFILE errors\n* Ignore ENOSYS from chmod/chown\n* clarify that graceful-fs must be used as a drop-in\n\n### v2.1.0\n\n* Use eval rather than monkey-patching fs.\n* readdir: Always sort the results\n* win32: requeue a file if error has an OK status\n\n### v2.0\n\n* A return to monkey patching\n* wrap process.cwd\n\n### v1.1\n\n* wrap readFile\n* Wrap fs.writeFile.\n* readdir protection\n* Don't clobber the fs builtin\n* Handle fs.read EAGAIN errors by trying again\n* Expose the curOpen counter\n* No-op lchown/lchmod if not implemented\n* fs.rename patch only for win32\n* Patch fs.rename to handle AV software on Windows\n* Close #4 Chown should not fail on einval or eperm if non-root\n* Fix isaacs/fstream#1 Only wrap fs one time\n* Fix #3 Start at 1024 max files, then back off on EMFILE\n* lutimes that doens't blow up on Linux\n* A full on-rewrite using a queue instead of just swallowing the EMFILE error\n* Wrap Read/Write streams as well\n\n### 1.0\n\n* Update engines for node 0.6\n* Be lstat-graceful on Windows\n* first\n# u3 - Utility Functions\n\nThis lib contains utility functions for e3, dataflower and other projects.\n\n## Documentation\n\n### Installation\n\n```bash\nnpm install u3\n```\n\n```bash\nbower install u3\n```\n\n#### Usage\n\nIn this documentation I used the lib as follows:\n\n```js\nvar u3 = require(\"u3\"),\n cache = u3.cache,\n eachCombination = u3.eachCombination;\n```\n\n### Function wrappers\n\n#### cache\n\nThe `cache(fn)` function caches the fn results, so by the next calls it will return the result of the first call.\nYou can use different arguments, but they won't affect the return value.\n\n```js\nvar a = cache(function fn(x, y, z){\n return x + y + z;\n});\nconsole.log(a(1, 2, 3)); // 6\nconsole.log(a()); // 6\nconsole.log(a()); // 6\n```\n\nIt is possible to cache a value too.\n\n```js\nvar a = cache(1 + 2 + 3);\nconsole.log(a()); // 6\nconsole.log(a()); // 6\nconsole.log(a()); // 6\n```\n\n### Math\n\n#### eachCombination\n\nThe `eachCombination(alternativesByDimension, callback)` calls the `callback(a,b,c,...)` on each combination of the `alternatives[a[],b[],c[],...]`.\n\n```js\neachCombination([\n [1, 2, 3],\n [\"a\", \"b\"]\n ], console.log);\n /*\n 1, \"a\"\n 1, \"b\"\n \n 2, \"a\"\n 2, \"b\"\n \n 3, \"a\"\n 3, \"b\"\n */\n```\n\nYou can use any dimension and number of alternatives. In the current example we used 2 dimensions. By the first dimension we used 3 alternatives: `[1, 2, 3]` and by the second dimension we used 2 alternatives: `[\"a\", \"b\"]`.\n\n## License\n\nMIT - 2016 Jánszky László Lajos\n# Glob\n\nMatch files using the patterns the shell uses, like stars and stuff.\n\n[](https://travis-ci.org/isaacs/node-glob/) [](https://ci.appveyor.com/project/isaacs/node-glob) [](https://coveralls.io/github/isaacs/node-glob?branch=master)\n\nThis is a glob implementation in JavaScript. It uses the `minimatch`\nlibrary to do its matching.\n\n\n\n## Usage\n\nInstall with npm\n\n```\nnpm i glob\n```\n\n```javascript\nvar glob = require(\"glob\")\n\n// options is optional\nglob(\"**/*.js\", options, function (er, files) {\n // files is an array of filenames.\n // If the `nonull` option is set, and nothing\n // was found, then files is [\"**/*.js\"]\n // er is an error object or null.\n})\n```\n\n## Glob Primer\n\n\"Globs\" are the patterns you type when you do stuff like `ls *.js` on\nthe command line, or put `build/*` in a `.gitignore` file.\n\nBefore parsing the path part patterns, braced sections are expanded\ninto a set. Braced sections start with `{` and end with `}`, with any\nnumber of comma-delimited sections within. Braced sections may contain\nslash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.\n\nThe following characters have special magic meaning when used in a\npath portion:\n\n* `*` Matches 0 or more characters in a single path portion\n* `?` Matches 1 character\n* `[...]` Matches a range of characters, similar to a RegExp range.\n If the first character of the range is `!` or `^` then it matches\n any character not in the range.\n* `!(pattern|pattern|pattern)` Matches anything that does not match\n any of the patterns provided.\n* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the\n patterns provided.\n* `+(pattern|pattern|pattern)` Matches one or more occurrences of the\n patterns provided.\n* `*(a|b|c)` Matches zero or more occurrences of the patterns provided\n* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns\n provided\n* `**` If a \"globstar\" is alone in a path portion, then it matches\n zero or more directories and subdirectories searching for matches.\n It does not crawl symlinked directories.\n\n### Dots\n\nIf a file or directory path portion has a `.` as the first character,\nthen it will not match any glob pattern unless that pattern's\ncorresponding path part also has a `.` as its first character.\n\nFor example, the pattern `a/.*/c` would match the file at `a/.b/c`.\nHowever the pattern `a/*/c` would not, because `*` does not start with\na dot character.\n\nYou can make glob treat dots as normal characters by setting\n`dot:true` in the options.\n\n### Basename Matching\n\nIf you set `matchBase:true` in the options, and the pattern has no\nslashes in it, then it will seek for any file anywhere in the tree\nwith a matching basename. For example, `*.js` would match\n`test/simple/basic.js`.\n\n### Empty Sets\n\nIf no matching files are found, then an empty array is returned. This\ndiffers from the shell, where the pattern itself is returned. For\nexample:\n\n $ echo a*s*d*f\n a*s*d*f\n\nTo get the bash-style behavior, set the `nonull:true` in the options.\n\n### See Also:\n\n* `man sh`\n* `man bash` (Search for \"Pattern Matching\")\n* `man 3 fnmatch`\n* `man 5 gitignore`\n* [minimatch documentation](https://github.com/isaacs/minimatch)\n\n## glob.hasMagic(pattern, [options])\n\nReturns `true` if there are any special characters in the pattern, and\n`false` otherwise.\n\nNote that the options affect the results. If `noext:true` is set in\nthe options object, then `+(a|b)` will not be considered a magic\npattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`\nthen that is considered magical, unless `nobrace:true` is set in the\noptions.\n\n## glob(pattern, [options], cb)\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* `cb` `{Function}`\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nPerform an asynchronous glob search.\n\n## glob.sync(pattern, [options])\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* return: `{Array<String>}` filenames found matching the pattern\n\nPerform a synchronous glob search.\n\n## Class: glob.Glob\n\nCreate a Glob object by instantiating the `glob.Glob` class.\n\n```javascript\nvar Glob = require(\"glob\").Glob\nvar mg = new Glob(pattern, options, cb)\n```\n\nIt's an EventEmitter, and starts walking the filesystem to find matches\nimmediately.\n\n### new glob.Glob(pattern, [options], [cb])\n\n* `pattern` `{String}` pattern to search for\n* `options` `{Object}`\n* `cb` `{Function}` Called when an error occurs, or matches are found\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nNote that if the `sync` flag is set in the options, then matches will\nbe immediately available on the `g.found` member.\n\n### Properties\n\n* `minimatch` The minimatch object that the glob uses.\n* `options` The options object passed in.\n* `aborted` Boolean which is set to true when calling `abort()`. There\n is no way at this time to continue a glob search after aborting, but\n you can re-use the statCache to avoid having to duplicate syscalls.\n* `cache` Convenience object. Each field has the following possible\n values:\n * `false` - Path does not exist\n * `true` - Path exists\n * `'FILE'` - Path exists, and is not a directory\n * `'DIR'` - Path exists, and is a directory\n * `[file, entries, ...]` - Path exists, is a directory, and the\n array value is the results of `fs.readdir`\n* `statCache` Cache of `fs.stat` results, to prevent statting the same\n path multiple times.\n* `symlinks` A record of which paths are symbolic links, which is\n relevant in resolving `**` patterns.\n* `realpathCache` An optional object which is passed to `fs.realpath`\n to minimize unnecessary syscalls. It is stored on the instantiated\n Glob object, and may be re-used.\n\n### Events\n\n* `end` When the matching is finished, this is emitted with all the\n matches found. If the `nonull` option is set, and no match was found,\n then the `matches` list contains the original pattern. The matches\n are sorted, unless the `nosort` flag is set.\n* `match` Every time a match is found, this is emitted with the specific\n thing that matched. It is not deduplicated or resolved to a realpath.\n* `error` Emitted when an unexpected error is encountered, or whenever\n any fs error occurs if `options.strict` is set.\n* `abort` When `abort()` is called, this event is raised.\n\n### Methods\n\n* `pause` Temporarily stop the search\n* `resume` Resume the search\n* `abort` Stop the search forever\n\n### Options\n\nAll the options that can be passed to Minimatch can also be passed to\nGlob to change pattern matching behavior. Also, some have been added,\nor have glob-specific ramifications.\n\nAll options are false by default, unless otherwise noted.\n\nAll options are added to the Glob object, as well.\n\nIf you are running many `glob` operations, you can pass a Glob object\nas the `options` argument to a subsequent operation to shortcut some\n`stat` and `readdir` calls. At the very least, you may pass in shared\n`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that\nparallel glob operations will be sped up by sharing information about\nthe filesystem.\n\n* `cwd` The current working directory in which to search. Defaults\n to `process.cwd()`.\n* `root` The place where patterns starting with `/` will be mounted\n onto. Defaults to `path.resolve(options.cwd, \"/\")` (`/` on Unix\n systems, and `C:\\` or some such on Windows.)\n* `dot` Include `.dot` files in normal matches and `globstar` matches.\n Note that an explicit dot in a portion of the pattern will always\n match dot files.\n* `nomount` By default, a pattern starting with a forward-slash will be\n \"mounted\" onto the root setting, so that a valid filesystem path is\n returned. Set this flag to disable that behavior.\n* `mark` Add a `/` character to directory matches. Note that this\n requires additional stat calls.\n* `nosort` Don't sort the results.\n* `stat` Set to true to stat *all* results. This reduces performance\n somewhat, and is completely unnecessary, unless `readdir` is presumed\n to be an untrustworthy indicator of file existence.\n* `silent` When an unusual error is encountered when attempting to\n read a directory, a warning will be printed to stderr. Set the\n `silent` option to true to suppress these warnings.\n* `strict` When an unusual error is encountered when attempting to\n read a directory, the process will just continue on in search of\n other matches. Set the `strict` option to raise an error in these\n cases.\n* `cache` See `cache` property above. Pass in a previously generated\n cache object to save some fs calls.\n* `statCache` A cache of results of filesystem information, to prevent\n unnecessary stat calls. While it should not normally be necessary\n to set this, you may pass the statCache from one glob() call to the\n options object of another, if you know that the filesystem will not\n change between calls. (See \"Race Conditions\" below.)\n* `symlinks` A cache of known symbolic links. You may pass in a\n previously generated `symlinks` object to save `lstat` calls when\n resolving `**` matches.\n* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.\n* `nounique` In some cases, brace-expanded patterns can result in the\n same file showing up multiple times in the result set. By default,\n this implementation prevents duplicates in the result set. Set this\n flag to disable that behavior.\n* `nonull` Set to never return an empty set, instead returning a set\n containing the pattern itself. This is the default in glob(3).\n* `debug` Set to enable debug logging in minimatch and glob.\n* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.\n* `noglobstar` Do not match `**` against multiple filenames. (Ie,\n treat it as a normal `*` instead.)\n* `noext` Do not match `+(a|b)` \"extglob\" patterns.\n* `nocase` Perform a case-insensitive match. Note: on\n case-insensitive filesystems, non-magic patterns will match by\n default, since `stat` and `readdir` will not raise errors.\n* `matchBase` Perform a basename-only match if the pattern does not\n contain any slash characters. That is, `*.js` would be treated as\n equivalent to `**/*.js`, matching all js files in all directories.\n* `nodir` Do not match directories, only files. (Note: to match\n *only* directories, simply put a `/` at the end of the pattern.)\n* `ignore` Add a pattern or an array of glob patterns to exclude matches.\n Note: `ignore` patterns are *always* in `dot:true` mode, regardless\n of any other settings.\n* `follow` Follow symlinked directories when expanding `**` patterns.\n Note that this can result in a lot of duplicate references in the\n presence of cyclic links.\n* `realpath` Set to true to call `fs.realpath` on all of the results.\n In the case of a symlink that cannot be resolved, the full absolute\n path to the matched entry is returned (though it will usually be a\n broken symlink)\n* `absolute` Set to true to always receive absolute paths for matched\n files. Unlike `realpath`, this also affects the values returned in\n the `match` event.\n* `fs` File-system object with Node's `fs` API. By default, the built-in\n `fs` module will be used. Set to a volume provided by a library like\n `memfs` to avoid using the \"real\" file-system.\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between node-glob and other\nimplementations, and are intentional.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.3, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nNote that symlinked directories are not crawled as part of a `**`,\nthough their contents may match against subsequent portions of the\npattern. This prevents infinite loops and duplicates and the like.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen glob returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`glob.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n\n### Comments and Negation\n\nPreviously, this module let you mark a pattern as a \"comment\" if it\nstarted with a `#` character, or a \"negated\" pattern if it started\nwith a `!` character.\n\nThese options were deprecated in version 5, and removed in version 6.\n\nTo specify things that should not match, use the `ignore` option.\n\n## Windows\n\n**Please only use forward-slashes in glob expressions.**\n\nThough windows uses either `/` or `\\` as its path separator, only `/`\ncharacters are used by this glob implementation. You must use\nforward-slashes **only** in glob expressions. Back-slashes will always\nbe interpreted as escape characters, not path separators.\n\nResults from absolute patterns such as `/foo/*` are mounted onto the\nroot setting using `path.join`. On windows, this will by default result\nin `/foo/*` matching `C:\\foo\\bar.txt`.\n\n## Race Conditions\n\nGlob searching, by its very nature, is susceptible to race conditions,\nsince it relies on directory walking and such.\n\nAs a result, it is possible that a file that exists when glob looks for\nit may have been deleted or modified by the time it returns the result.\n\nAs part of its internal implementation, this program caches all stat\nand readdir calls that it makes, in order to cut down on system\noverhead. However, this also makes it even more susceptible to races,\nespecially if the cache or statCache objects are reused between glob\ncalls.\n\nUsers are thus advised not to use a glob result as a guarantee of\nfilesystem state in the face of rapid changes. For the vast majority\nof operations, this is never a problem.\n\n## Glob Logo\nGlob's logo was created by [Tanya Brassie](http://tanyabrassie.com/). Logo files can be found [here](https://github.com/isaacs/node-glob/tree/master/logo).\n\nThe logo is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/).\n\n## Contributing\n\nAny change to behavior (including bugfixes) must come with a test.\n\nPatches that fail tests or reduce performance will be rejected.\n\n```\n# to run tests\nnpm test\n\n# to re-generate test fixtures\nnpm run test-regen\n\n# to benchmark against bash/zsh\nnpm run bench\n\n# to profile javascript\nnpm run prof\n```\n\n\n# color-convert\n\n[](https://travis-ci.org/Qix-/color-convert)\n\nColor-convert is a color conversion library for JavaScript and node.\nIt converts all ways between `rgb`, `hsl`, `hsv`, `hwb`, `cmyk`, `ansi`, `ansi16`, `hex` strings, and CSS `keyword`s (will round to closest):\n\n```js\nvar convert = require('color-convert');\n\nconvert.rgb.hsl(140, 200, 100); // [96, 48, 59]\nconvert.keyword.rgb('blue'); // [0, 0, 255]\n\nvar rgbChannels = convert.rgb.channels; // 3\nvar cmykChannels = convert.cmyk.channels; // 4\nvar ansiChannels = convert.ansi16.channels; // 1\n```\n\n# Install\n\n```console\n$ npm install color-convert\n```\n\n# API\n\nSimply get the property of the _from_ and _to_ conversion that you're looking for.\n\nAll functions have a rounded and unrounded variant. By default, return values are rounded. To get the unrounded (raw) results, simply tack on `.raw` to the function.\n\nAll 'from' functions have a hidden property called `.channels` that indicates the number of channels the function expects (not including alpha).\n\n```js\nvar convert = require('color-convert');\n\n// Hex to LAB\nconvert.hex.lab('DEADBF'); // [ 76, 21, -2 ]\nconvert.hex.lab.raw('DEADBF'); // [ 75.56213190997677, 20.653827952644754, -2.290532499330533 ]\n\n// RGB to CMYK\nconvert.rgb.cmyk(167, 255, 4); // [ 35, 0, 98, 0 ]\nconvert.rgb.cmyk.raw(167, 255, 4); // [ 34.509803921568626, 0, 98.43137254901961, 0 ]\n```\n\n### Arrays\nAll functions that accept multiple arguments also support passing an array.\n\nNote that this does **not** apply to functions that convert from a color that only requires one value (e.g. `keyword`, `ansi256`, `hex`, etc.)\n\n```js\nvar convert = require('color-convert');\n\nconvert.rgb.hex(123, 45, 67); // '7B2D43'\nconvert.rgb.hex([123, 45, 67]); // '7B2D43'\n```\n\n## Routing\n\nConversions that don't have an _explicitly_ defined conversion (in [conversions.js](conversions.js)), but can be converted by means of sub-conversions (e.g. XYZ -> **RGB** -> CMYK), are automatically routed together. This allows just about any color model supported by `color-convert` to be converted to any other model, so long as a sub-conversion path exists. This is also true for conversions requiring more than one step in between (e.g. LCH -> **LAB** -> **XYZ** -> **RGB** -> Hex).\n\nKeep in mind that extensive conversions _may_ result in a loss of precision, and exist only to be complete. For a list of \"direct\" (single-step) conversions, see [conversions.js](conversions.js).\n\n# Contribute\n\nIf there is a new model you would like to support, or want to add a direct conversion between two existing models, please send us a pull request.\n\n# License\nCopyright © 2011-2016, Heather Arthur and Josh Junon. Licensed under the [MIT License](LICENSE).\nis2\n===\nis2 is a type-checking module for JavaScript to test values. Is does not throw\nexceptions and every function only returns true or false. Use is2 to validate\ntypes in your node.js code. Every function in is2 returns either true of false.\n\n## Installation\nTo install is2, type:\n\n $ npm install is2\n\n## Usage\n\n const is = require('is2');\n\n console.log(`1===1 is: ${is.equal(true, 1===1)}`);\n console.log(`10 is a positive number: ${is.positiveNumber(10)}`);\n console.log(`11 is an odd number: ${is.oddNumber(11)}`);\n\n## API\n\nEach function returns true or false. The names after the '-' are aliases, which\nprovide brevity.\n\nEnvironment:\n\n* is.browser()\n* is.defined(val) - is.def\n* is.nodejs() - is.node()\n* is.undefined(val) - is.udef, is.undef\n\nTypes:\n\n* is.array(val) - is.ary, is.arry\n* is.arrayLike(val) - is.arryLike, is.aryLike, is.arrLike\n* is.arguments(val) - is.args\n* is.boolean(val) - is.bool\n* is.buffer(val) - is.buf, is.buff\n* is.date(val)\n* is.error(val) - is.err\n* is.false(val)\n* is.function(val) - is.funct, is.fun\n* is.mongoId - is.objectId, is.objId\n* is.null(val)\n* is.nullOrUndefined(val) - is.nullOrUndef\n* is.number(val) - is.num\n* is.object(val) - is.obj\n* is.regExp(val) - is.regexp, is.re\n* is.string(val) - is.str\n* is.true(val)\n* is.uuid(val)\n\nRelationships:\n\n* is.equal(val, other) - is.eq, is.objEquals\n* is.hosted(val, host)\n* is.instanceOf(val, constructor) - is.instOf, is.instanceof\n* is.matching(val1, val2 [, val3, ...]) - is.match : true if the first arument\n is strictly equal to any of the subsequent args.\n* is.objectInstanceof(obj, objType) - is.instOf, is.instanceOf, is.objInstOf, is.objectInstanceOf\n* is.type(val, type) - is.a\n* is.enumerator(val, array) - is.enum, is.inArray\n\nObject State:\n\n* is.empty(val)\n* is.emptyArguments(val) - is.emptyArgs, is.noArgs\n* is.emptyArray(val) - is.emptyArry, is.emptyAry, is.emptyArray\n* is.emptyArrayLike(val) - is.emptyArrLike\n* is.emptyString(val) - is.emptyStr\n* is.nonEmptyArray(val) - is.nonEmptyArry, is.nonEmptyAry\n* is.nonEmptyObject(val) - is.nonEmptyObj\n* is.emptyObject(val) - is.emptyObj\n* is.nonEmptyString(val) - is.nonEmptyStr\n\nNumeric Types within Number:\n\n* is.even(val) - is.evenNum, is.evenNumber\n* is.decimal(val) - is.decNum, is.dec\n* is.integer(val) - is.int\n* is.notANumber(val) - is.nan, is.notANum\n* is.odd(val) - is.oddNum, is.oddNumber\n\nNumeric Type and State:\n\n* is.positiveNumber(val) - is.pos, is.positive, is.posNum, is.positiveNum\n* is.negativeNumber(val) - is.neg, is.negNum, is.negativeNum, is.negativeNumber\n* is.negativeInteger(val) - is.negativeInt, is.negInt\n* is.positiveInteger(val) - is.posInt, is.positiveInt\n\nNumeric Relationship:\n\n* is.divisibleBy(val, other) - is.divisBy, is.divBy\n* is.greaterOrEqualTo(val, other) - is.ge, is.greaterOrEqual\n* is.greaterThan(val, other) - is.gt\n* is.lessThanOrEqualTo(val, other) - is.lessThanOrEq, is.lessThanOrEqual, is.le\n* is.lessThan(val, other) - is.lt\n* is.maximum(val, array) - is.max\n* is.minimum(val, array) - is.min\n* is.withIn(val, start, finish) - is.within\n* is.prettyClose(val, comp, precision) - is.closish, is.near\n\nNetworking:\n\n* is.dnsAddress(val) - is.dnsAddr, is.dns\n* is.emailAddress(val) - is.email, is.emailAddr\n* is.ipv4Address(val) - is.ipv4, is.ipv4Addr\n* is.ipv6Address(val) - is.ipv6, is.ipv6Addr\n* is.ipAddress(val) - is.ip, is.ipAddr\n* is.hostAddress(val) - is.host = is.hostIp = is.hostAddr\n* is.port(val)\n* is.systemPort(val) - is.sysPort\n* is.url(val) - is.uri\n* is.userPort(val)\n\nCredit Cards:\n\n* is.creditCardNumber(str) - is.creditCard, is.creditCardNum\n* is.americanExpressCardNumber(str) - is.amexCardNum, is.amexCard\n* is.chinaUnionPayCardNumber(str) - is.chinaUnionPayCard, is.chinaUnion\n* is.dankortCardNumber(str) - is.dankortCard, is.dankort\n* is.dinersClubCarteBlancheCardNumber(str) - is.dinersClubCarteBlancheCard,\n is.dinersClubCB\n* is.dinersClubInternationalCardNumber(str) - is.dinersClubInternationalCard,\n is.dinersClubInt\n* is.dinersClubUSACanadaCardNumber(str) - is.dinersClubUSACanCard, is.dinersClub\n* is.discoverCardNumber(str) - is.discoverCard, is.discover\n* is.instaPaymentCardNumber(str) - is.instaPayment\n* is.jcbCardNumber(str) - is.jcbCard, is.jcb\n* is.laserCardNumber(str) - is.laserCard, is.laser\n* is.maestroCardNumber(str) - is.maestroCard, is.maestro\n* is.masterCardCardNumber - is.masterCardCard, is.masterCard\n* is.visaCardNumber(str) - is.visaCard, is.visa\n* is.visaElectronCardNumber(str) - is.visaElectronCard, is.visaElectron\n\nPersonal information:\n\n* is.streetAddress(str) - is.street, is.address\n* is.zipCode(str) - is.zip\n* is.phoneNumber(str) - is.phone\n\n## License\nThe MIT License (MIT)\n\nCopyright (c) 2013,2014 Edmond Meinfelder\nCopyright (c) 2011 Enrico Marino\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\nFOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\nCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\nIN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\nCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# near-ledger-js \n\nA JavaScript library for communication with [Ledger](https://www.ledger.com/) Hardware Wallet.\n\n# Example usage\n```javascript\n import { createClient, getSupportedTransport } from \"near-ledger-js\";\n \n const transport = await getSupportedTransport();\n transport.setScrambleKey(\"NEAR\");\n \n transport.on('disconnect', () => {...});\n```\n\nIn an onClick handler:\n```javascript\n const client = await createClient(transport);\n // If no error thrown, ledger is available. NOTE: U2F transport will still get here even if device is not present \n```\n\nTo see debug logging for `getSupportedTransport()`, import `setDebugLogging()` and call `setDebugLogging(true)` before using the package.\n\n# How to run demo project\n1. `yarn` to install dependencies\n2. `yarn start` to start local server with Parcel\n3. Open https://localhost:1234 in your browser\n4. Open browser console\n5. Try examples shown on the page\n\n# License\n\nThis repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0).\nSee [LICENSE](LICENSE) and [LICENSE-APACHE](LICENSE-APACHE) for details.\n# <img src=\"./logo.png\" alt=\"bn.js\" width=\"160\" height=\"160\" />\n\n> BigNum in pure javascript\n\n[](http://travis-ci.org/indutny/bn.js)\n\n## Install\n`npm install --save bn.js`\n\n## Usage\n\n```js\nconst BN = require('bn.js');\n\nvar a = new BN('dead', 16);\nvar b = new BN('101010', 2);\n\nvar res = a.add(b);\nconsole.log(res.toString(10)); // 57047\n```\n\n**Note**: decimals are not supported in this library.\n\n## Notation\n\n### Prefixes\n\nThere are several prefixes to instructions that affect the way the work. Here\nis the list of them in the order of appearance in the function name:\n\n* `i` - perform operation in-place, storing the result in the host object (on\n which the method was invoked). Might be used to avoid number allocation costs\n* `u` - unsigned, ignore the sign of operands when performing operation, or\n always return positive value. Second case applies to reduction operations\n like `mod()`. In such cases if the result will be negative - modulo will be\n added to the result to make it positive\n\n### Postfixes\n\n* `n` - the argument of the function must be a plain JavaScript\n Number. Decimals are not supported.\n* `rn` - both argument and return value of the function are plain JavaScript\n Numbers. Decimals are not supported.\n\n### Examples\n\n* `a.iadd(b)` - perform addition on `a` and `b`, storing the result in `a`\n* `a.umod(b)` - reduce `a` modulo `b`, returning positive value\n* `a.iushln(13)` - shift bits of `a` left by 13\n\n## Instructions\n\nPrefixes/postfixes are put in parens at the of the line. `endian` - could be\neither `le` (little-endian) or `be` (big-endian).\n\n### Utilities\n\n* `a.clone()` - clone number\n* `a.toString(base, length)` - convert to base-string and pad with zeroes\n* `a.toNumber()` - convert to Javascript Number (limited to 53 bits)\n* `a.toJSON()` - convert to JSON compatible hex string (alias of `toString(16)`)\n* `a.toArray(endian, length)` - convert to byte `Array`, and optionally zero\n pad to length, throwing if already exceeding\n* `a.toArrayLike(type, endian, length)` - convert to an instance of `type`,\n which must behave like an `Array`\n* `a.toBuffer(endian, length)` - convert to Node.js Buffer (if available). For\n compatibility with browserify and similar tools, use this instead:\n `a.toArrayLike(Buffer, endian, length)`\n* `a.bitLength()` - get number of bits occupied\n* `a.zeroBits()` - return number of less-significant consequent zero bits\n (example: `1010000` has 4 zero bits)\n* `a.byteLength()` - return number of bytes occupied\n* `a.isNeg()` - true if the number is negative\n* `a.isEven()` - no comments\n* `a.isOdd()` - no comments\n* `a.isZero()` - no comments\n* `a.cmp(b)` - compare numbers and return `-1` (a `<` b), `0` (a `==` b), or `1` (a `>` b)\n depending on the comparison result (`ucmp`, `cmpn`)\n* `a.lt(b)` - `a` less than `b` (`n`)\n* `a.lte(b)` - `a` less than or equals `b` (`n`)\n* `a.gt(b)` - `a` greater than `b` (`n`)\n* `a.gte(b)` - `a` greater than or equals `b` (`n`)\n* `a.eq(b)` - `a` equals `b` (`n`)\n* `a.toTwos(width)` - convert to two's complement representation, where `width` is bit width\n* `a.fromTwos(width)` - convert from two's complement representation, where `width` is the bit width\n* `BN.isBN(object)` - returns true if the supplied `object` is a BN.js instance\n* `BN.max(a, b)` - return `a` if `a` bigger than `b`\n* `BN.min(a, b)` - return `a` if `a` less than `b`\n\n### Arithmetics\n\n* `a.neg()` - negate sign (`i`)\n* `a.abs()` - absolute value (`i`)\n* `a.add(b)` - addition (`i`, `n`, `in`)\n* `a.sub(b)` - subtraction (`i`, `n`, `in`)\n* `a.mul(b)` - multiply (`i`, `n`, `in`)\n* `a.sqr()` - square (`i`)\n* `a.pow(b)` - raise `a` to the power of `b`\n* `a.div(b)` - divide (`divn`, `idivn`)\n* `a.mod(b)` - reduct (`u`, `n`) (but no `umodn`)\n* `a.divmod(b)` - quotient and modulus obtained by dividing\n* `a.divRound(b)` - rounded division\n\n### Bit operations\n\n* `a.or(b)` - or (`i`, `u`, `iu`)\n* `a.and(b)` - and (`i`, `u`, `iu`, `andln`) (NOTE: `andln` is going to be replaced\n with `andn` in future)\n* `a.xor(b)` - xor (`i`, `u`, `iu`)\n* `a.setn(b, value)` - set specified bit to `value`\n* `a.shln(b)` - shift left (`i`, `u`, `iu`)\n* `a.shrn(b)` - shift right (`i`, `u`, `iu`)\n* `a.testn(b)` - test if specified bit is set\n* `a.maskn(b)` - clear bits with indexes higher or equal to `b` (`i`)\n* `a.bincn(b)` - add `1 << b` to the number\n* `a.notn(w)` - not (for the width specified by `w`) (`i`)\n\n### Reduction\n\n* `a.gcd(b)` - GCD\n* `a.egcd(b)` - Extended GCD results (`{ a: ..., b: ..., gcd: ... }`)\n* `a.invm(b)` - inverse `a` modulo `b`\n\n## Fast reduction\n\nWhen doing lots of reductions using the same modulo, it might be beneficial to\nuse some tricks: like [Montgomery multiplication][0], or using special algorithm\nfor [Mersenne Prime][1].\n\n### Reduction context\n\nTo enable this tricks one should create a reduction context:\n\n```js\nvar red = BN.red(num);\n```\nwhere `num` is just a BN instance.\n\nOr:\n\n```js\nvar red = BN.red(primeName);\n```\n\nWhere `primeName` is either of these [Mersenne Primes][1]:\n\n* `'k256'`\n* `'p224'`\n* `'p192'`\n* `'p25519'`\n\nOr:\n\n```js\nvar red = BN.mont(num);\n```\n\nTo reduce numbers with [Montgomery trick][0]. `.mont()` is generally faster than\n`.red(num)`, but slower than `BN.red(primeName)`.\n\n### Converting numbers\n\nBefore performing anything in reduction context - numbers should be converted\nto it. Usually, this means that one should:\n\n* Convert inputs to reducted ones\n* Operate on them in reduction context\n* Convert outputs back from the reduction context\n\nHere is how one may convert numbers to `red`:\n\n```js\nvar redA = a.toRed(red);\n```\nWhere `red` is a reduction context created using instructions above\n\nHere is how to convert them back:\n\n```js\nvar a = redA.fromRed();\n```\n\n### Red instructions\n\nMost of the instructions from the very start of this readme have their\ncounterparts in red context:\n\n* `a.redAdd(b)`, `a.redIAdd(b)`\n* `a.redSub(b)`, `a.redISub(b)`\n* `a.redShl(num)`\n* `a.redMul(b)`, `a.redIMul(b)`\n* `a.redSqr()`, `a.redISqr()`\n* `a.redSqrt()` - square root modulo reduction context's prime\n* `a.redInvm()` - modular inverse of the number\n* `a.redNeg()`\n* `a.redPow(b)` - modular exponentiation\n\n### Number Size\n\nOptimized for elliptic curves that work with 256-bit numbers.\nThere is no limitation on the size of the numbers.\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\n[0]: https://en.wikipedia.org/wiki/Montgomery_modular_multiplication\n[1]: https://en.wikipedia.org/wiki/Mersenne_prime\n# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n cb = once(cb)\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n cb = cb.once()\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n\nTo check whether you function has been called, use `fn.called`. Once the\nfunction is called for the first time the return value of the original\nfunction is saved in `fn.value` and subsequent calls will continue to\nreturn this value.\n\n```javascript\nvar once = require('once')\n\nfunction load (cb) {\n cb = once(cb)\n var stream = createStream()\n stream.once('data', cb)\n stream.once('end', function () {\n if (!cb.called) cb(new Error('not found'))\n })\n}\n```\n\n## `once.strict(func)`\n\nThrow an error if the function is called twice.\n\nSome functions are expected to be called only once. Using `once` for them would\npotentially hide logical errors.\n\nIn the example below, the `greet` function has to call the callback only once:\n\n```javascript\nfunction greet (name, cb) {\n // return is missing from the if statement\n // when no name is passed, the callback is called twice\n if (!name) cb('Hello anonymous')\n cb('Hello ' + name)\n}\n\nfunction log (msg) {\n console.log(msg)\n}\n\n// this will print 'Hello anonymous' but the logical error will be missed\ngreet(null, once(msg))\n\n// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time\ngreet(null, once.strict(msg))\n```\n[](https://travis-ci.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf#info=devDependencies)\n\nThe [UNIX command](http://en.wikipedia.org/wiki/Rm_(Unix)) `rm -rf` for node.\n\nInstall with `npm install rimraf`, or just drop rimraf.js somewhere.\n\n## API\n\n`rimraf(f, [opts], callback)`\n\nThe first parameter will be interpreted as a globbing pattern for files. If you\nwant to disable globbing you can do so with `opts.disableGlob` (defaults to\n`false`). This might be handy, for instance, if you have filenames that contain\nglobbing wildcard characters.\n\nThe callback will be called with an error if there is one. Certain\nerrors are handled for you:\n\n* Windows: `EBUSY` and `ENOTEMPTY` - rimraf will back off a maximum of\n `opts.maxBusyTries` times before giving up, adding 100ms of wait\n between each attempt. The default `maxBusyTries` is 3.\n* `ENOENT` - If the file doesn't exist, rimraf will return\n successfully, since your desired outcome is already the case.\n* `EMFILE` - Since `readdir` requires opening a file descriptor, it's\n possible to hit `EMFILE` if too many file descriptors are in use.\n In the sync case, there's nothing to be done for this. But in the\n async case, rimraf will gradually back off with timeouts up to\n `opts.emfileWait` ms, which defaults to 1000.\n\n## options\n\n* unlink, chmod, stat, lstat, rmdir, readdir,\n unlinkSync, chmodSync, statSync, lstatSync, rmdirSync, readdirSync\n\n In order to use a custom file system library, you can override\n specific fs functions on the options object.\n\n If any of these functions are present on the options object, then\n the supplied function will be used instead of the default fs\n method.\n\n Sync methods are only relevant for `rimraf.sync()`, of course.\n\n For example:\n\n ```javascript\n var myCustomFS = require('some-custom-fs')\n\n rimraf('some-thing', myCustomFS, callback)\n ```\n\n* maxBusyTries\n\n If an `EBUSY`, `ENOTEMPTY`, or `EPERM` error code is encountered\n on Windows systems, then rimraf will retry with a linear backoff\n wait of 100ms longer on each try. The default maxBusyTries is 3.\n\n Only relevant for async usage.\n\n* emfileWait\n\n If an `EMFILE` error is encountered, then rimraf will retry\n repeatedly with a linear backoff of 1ms longer on each try, until\n the timeout counter hits this max. The default limit is 1000.\n\n If you repeatedly encounter `EMFILE` errors, then consider using\n [graceful-fs](http://npm.im/graceful-fs) in your program.\n\n Only relevant for async usage.\n\n* glob\n\n Set to `false` to disable [glob](http://npm.im/glob) pattern\n matching.\n\n Set to an object to pass options to the glob module. The default\n glob options are `{ nosort: true, silent: true }`.\n\n Glob version 6 is used in this module.\n\n Relevant for both sync and async usage.\n\n* disableGlob\n\n Set to any non-falsey value to disable globbing entirely.\n (Equivalent to setting `glob: false`.)\n\n## rimraf.sync\n\nIt can remove stuff synchronously, too. But that's not so good. Use\nthe async API. It's better.\n\n## CLI\n\nIf installed with `npm install rimraf -g` it can be used as a global\ncommand `rimraf <path> [<path> ...]` which is useful for cross platform support.\n\n## mkdirp\n\nIf you need to create a directory recursively, check out\n[mkdirp](https://github.com/substack/node-mkdirp).\n# string_decoder\n\n***Node-core v8.9.4 string_decoder for userland***\n\n[](https://nodei.co/npm/string_decoder/)\n[](https://nodei.co/npm/string_decoder/)\n\n```bash\nnpm install --save string_decoder\n```\n\n***Node-core string_decoder for userland***\n\nThis package is a mirror of the string_decoder implementation in Node-core.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).\n\nAs of version 1.0.0 **string_decoder** uses semantic versioning.\n\n## Previous versions\n\nPrevious version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.\n\n## Update\n\nThe *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.\n\n## Streams Working Group\n\n`string_decoder` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\nSee [readable-stream](https://github.com/nodejs/readable-stream) for\nmore details.\n# end-of-stream\n\nA node module that calls a callback when a readable/writable/duplex stream has completed or failed.\n\n\tnpm install end-of-stream\n\n[](https://travis-ci.org/mafintosh/end-of-stream)\n\n## Usage\n\nSimply pass a stream and a callback to the `eos`.\nBoth legacy streams, streams2 and stream3 are supported.\n\n``` js\nvar eos = require('end-of-stream');\n\neos(readableStream, function(err) {\n // this will be set to the stream instance\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended', this === readableStream);\n});\n\neos(writableStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished', this === writableStream);\n});\n\neos(duplexStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended and finished', this === duplexStream);\n});\n\neos(duplexStream, {readable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished but might still be readable');\n});\n\neos(duplexStream, {writable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended but might still be writable');\n});\n\neos(readableStream, {error:false}, function(err) {\n\t// do not treat emit('error', err) as a end-of-stream\n});\n```\n\n## License\n\nMIT\n\n## Related\n\n`end-of-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# capability.js - javascript environment capability detection\n\n[](https://travis-ci.org/inf3rno/capability)\n\nThe capability.js library provides capability detection for different javascript environments.\n\n## Documentation\n\nThis project is empty yet.\n\n### Installation\n\n```bash\nnpm install capability\n```\n\n```bash\nbower install capability\n```\n\n#### Environment compatibility\n\nThe lib requires only basic javascript features, so it will run in every js environments.\n\n#### Requirements\n\nIf you want to use the lib in browser, you'll need a node module loader, e.g. browserify, webpack, etc...\n\n#### Usage\n\nIn this documentation I used the lib as follows:\n\n```js\nvar capability = require(\"capability\");\n```\n\n### Capabilities API\n\n#### Defining a capability\n\nYou can define a capability by using the `define(name, test)` function.\n\n```js\ncapability.define(\"Object.create\", function () {\n return Object.create;\n});\n```\n\nThe `name` parameter should contain the identifier of the capability and the `test` parameter should contain a function, which can detect the capability.\nIf the capability is supported by the environment, then the `test()` should return `true`, otherwise it should return `false`.\n\nYou don't have to convert the return value into a `Boolean`, the library will do that for you, so you won't have memory leaks because of this.\n\n#### Testing a capability\n\nThe `test(name)` function will return a `Boolean` about whether the capability is supported by the actual environment.\n\n```js\nconsole.log(capability.test(\"Object.create\"));\n // true - in recent environments\n // false - by pre ES5 environments without Object.create\n```\n\nYou can use `capability(name)` instead of `capability.test(name)` if you want a short code by optional requirements.\n\n#### Checking a capability\n\nThe `check(name)` function will throw an Error when the capability is not supported by the actual environment.\n\n```js\ncapability.check(\"Object.create\");\n // this will throw an Error by pre ES5 environments without Object.create\n```\n\n#### Checking capability with require and modules\n\nIt is possible to check the environments with `require()` by adding a module, which calls the `check(name)` function.\nBy the capability definitions in this lib I added such modules by each definition, so you can do for example `require(\"capability/es5\")`.\nOfc. you can do fun stuff if you want, e.g. you can call multiple `check`s from a single `requirements.js` file in your lib, etc...\n\n### Definitions\n\nCurrently the following definitions are supported by the lib:\n\n - strict mode\n - `arguments.callee.caller`\n - es5\n - `Array.prototype.forEach`\n - `Array.prototype.map`\n - `Function.prototype.bind`\n - `Object.create`\n - `Object.defineProperties`\n - `Object.defineProperty`\n - `Object.prototype.hasOwnProperty`\n - `Error.captureStackTrace`\n - `Error.prototype.stack`\n \n## License\n\nMIT - 2016 Jánszky László Lajos\n"}}},{"rowIdx":870,"cells":{"repoName":{"kind":"string","value":"evgenykuzyakov_near-social-bot"},"tree":{"kind":"string","value":"README.md\nindex.js\npackage.json\nrun.sh\nsrc\n bot.js\n near.js\n openai.js\n social.js\n utils.js\n"},"readme":{"kind":"string","value":"# near-social-bot\nOpenAI based bot for NEAR Social\n\nAdd `.env` file:\n```env\nOPENAI_ORG = \"org-XXXXXXXXXXXXXXXXXXXXXXXX\"\nOPENAI_API_KEY = \"sk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\";\nAI_COMMAND = \"Your name is Bob\\nYour account ID is @bob.near\\nYou're friendly. Please reply to the thread.\\n\"\nSTOP_SEQ = \"<BLA>\"\nNEAR_ACCOUNT_ID = \"bob.near\"\nNEAR_PRIVATE_KEY = \"ed25519:5FF83vFDQQzzidoN1a1HaUsosBTyhFvLyzwCPhNUBkeRSYnZYnYpZaakHASwNWLLk2iZvMmXzebrSyb6ggi4CWrU\"\nMAX_TOKENS = \"1024\"\nMAX_TOKENS_PER_PROMPT = \"256\"\nMAX_PROMPT_TOKENS = \"512\"\nDAILY_PROMPT = \"Tell me what important events happened on ${dateText}.\"\nMODEL = \"gpt-3.5-turbo\"\n```\n"}}},{"rowIdx":871,"cells":{"repoName":{"kind":"string","value":"kirana-network_kirana-network-contracts"},"tree":{"kind":"string","value":"v0\n Cargo.toml\n build.sh\n deploy.sh\n src\n lib.rs\n utils\n package-lock.json\n package.json\n test.js\n"},"readme":{"kind":"string","value":""}}},{"rowIdx":872,"cells":{"repoName":{"kind":"string","value":"NiFTyRent_nft-rental"},"tree":{"kind":"string","value":".github\n workflows\n ci.yml\n.gitpod.yml\nREADME.md\ncontract\n Cargo.toml\n README.md\n src\n externals.rs\n lib.rs\n nft\n core.rs\n data_image_svg.txt\n enumeration.rs\n internal.rs\n metadata.rs\n mod.rs\n utils.rs\ndemo_nft_contract\n Cargo.toml\n README.md\n src\n lib.rs\ndemo_nft_frontend\n index.html\n package.json\n src\n NftContract.js\n RentalContract.js\n Utils.js\n main.css\n tailwind.config.js\n vite.config.js\ndocs\n NFT Rental Standard Draft.md\nfrontend\n assets\n logo.svg\n index.html\n package.json\n src\n FtContract.js\n NftContract.js\n Utils.js\n main.css\n near-api.js\n near-config.js\n tailwind.config.js\n vite.config.js\nintegration-tests\n Cargo.toml\n README.md\n stubs\n ft\n Cargo.toml\n src\n lib.rs\n nft_with_payout\n Cargo.toml\n src\n lib.rs\n nft_without_payout\n Cargo.toml\n src\n lib.rs\n tests\n gas_usage.rs\n integration.rs\n utils.rs\nmarketplace\n Cargo.toml\n README.md\n src\n externals.rs\n ft_callbacks.rs\n lib.rs\n nft_callbacks.rs\nInitialization\nAdmin Functions\nView Functions\nXCC RPCs\nInternal Helpers\npackage.json\nscripts\n set_allowed_fts.js\n test_util.txt\n view_state_keys.js\n"},"readme":{"kind":"string","value":"Welcome to NiFTyRent!\n=================================\n\nThe [smart contract] written in [Rust] for [NiFTyRent].\n\nQuick Start\n===========\n\nBefore you compile this code, you will need to install Rust with [correct target]\n\nPlease also refer to ~/README.md for setup.\n\nExploring The Code\n==================\n\n1. The main smart contract code lives in `src/lib.rs`.\n2. Tests: You can run unit tests with the `yarn test:unit`.\n\n [smart contract]: https://docs.near.org/develop/welcome\n [Rust]: https://www.rust-lang.org/\n [NiFTyRent]: https://testnet.niftyrent.xyz/\n [correct target]: https://docs.near.org/develop/prerequisites#rust-and-wasm\n# NiftyRent\n\n## Quick Start\n\nIf you haven't installed dependencies during setup:\n\n yarn deps-install\n\nTo deploy the rental dev contract on testnet\n\n yarn deploy\n\nInitilise the rental dev contract\n\n export OWNER=<your test account id>\n export RENTAL_CONTRACT=`cat contract/neardev/dev-account`\n near call $RENTAL_CONTRACT new \"{\\\"owner_id\\\": \\\"$OWNER\\\"}\" --accountId $OWNER\n\nDeploy the marketplace dev contract on testnet\n\n yarn deploy:marketplace\n\nInitilise the marketplace dev contract\n\n export MARKETPLACE_CONTRACT=`cat marketplace/neardev/dev-account`\n near call $MARKETPLACE_CONTRACT new \"{\\\"owner_id\\\": \\\"$OWNER\\\", \\\"treasury_id\\\": \\\"$OWNER\\\", \\\"rental_contract_id\\\": \\\"$RENTAL_CONTRACT\\\"}\" --accountId $OWNER\n\nAdd and register allowed FTs for both contracts\n\n near repl -s ./scripts/set_allowed_fts.js --accountId $OWNER\n\nAdd allowed NFT contracts for the marketplace contract\n\n near call $MARKETPLACE_CONTRACT add_allowed_nft_contract_ids '{\"nft_contract_ids\": [\"niftyrpg.mintspace2.testnet\"]}' --accountId $OWNER\n // You can add more testing NFT contracts\n\nTo start dev server\n\n yarn start\n\n## Allowed FT contract addresses\n\nFor now, the contract only allow a limited number of FTs as the rent payment currency options.\n\nTo check the current list:\n\n near call $CONTRACT_NAME get_allowed_ft_contract_addrs \"\" --accountId $ACCOUNT_ID\n\nTo set the list (for the testnet for example):\n\nUPDATE: there is script automates the following: `./scripts/set_allowed_fts.js`\n\n near call $CONTRACT_NAME set_allowed_ft_contract_addrs '{\"addrs\": [\"wrap.testnet\", \"usdc.fakes.testnet\"]}' --accountId $ACCOUNT_ID\n\nBear in mind that you need to make sure:\n\n1. `$ACCOUNT_ID` is the owner of the contract. (Only owner can change the list.)\n2. the contract itself have been registered in the FT contract for the storage deposit. For example, you can: `near call usdc.fakes.testnet storage_deposit \"{\\\"account_id\\\": \\\"$CONTRACT_NAME\\\", \\\"registration_only\\\": true}\" --accountId $ACCOUNT_ID --amount 0.1`\n\nOnce updated, the UI should automatically pick up the new list of allowed FTs.\nNiFTyRent Marketplace contract\n=================================\n\nA marketplace for users to lend and rent utility NFT assets.\n\nThe actual rental logic is delegated to the core rental contract, for sake of responsibility separation.\n\n``` mermaid\nsequenceDiagram\n actor Lender\n actor Borrower\n participant Marketplace\n participant Core\n participant Game\n Lender ->> Marketplace: Create lease offer\n Borrower ->> Marketplace: Take lease offer (by tranfer the rent)\n Marketplace->>Core: Transfer NFT, transfer rent, and create an active lease\n Lender ->> Core: View my lendings\n Borrower ->> Core: view my borowings\n Game ->> Core: Check current user\n Lender ->> Core: Claim back the NFT and rent\n```\n# Introduction\nBoth unit tests and integrations tests are included for the project.\n## Prerequisite\nFollow ../README.md to set up the environment\n\n# Unit Test\nUnit Tests are located in the contract file ./contract/src/lib.rs, inside the tests module.\n\n## How to run unit tests\n- move to project root directory. e.g. ./nft-rental\n- `yarn test:unit`\n\n# Integration Test\nIntegration test are based in a different directory ./integration-tests\n## How to run test\n- move to the ./nft-rental/integration-tests\n- Run `yarn test:integration`\n\n## Test plan\n\n- `test_claim_back_with_payout_success`: the lender, Alice, lends the testing NFT token to the borrower, Bob. This test will verify the ownership of the token is transferred back to Alice after being claimed back. The test will also verify the payout splits are made correctly as defined in the token.\n- `test_claim_back_without_payout_success`: similar to `test_claim_back_with_payout_success` but with an NFT which doesn't support payout. In this case all the rent should go to Alice.\n- `test_accept_leases_already_lent`: This test verifies that the call will pass for the first time when lender accepts the lease but should faile if borrowers accepts the same lease for multiple times.\n- `test_accept_lease_fails_already_transferred`: This test verifies that the call should fail if the token has been transferred before the borrowers accepts the lease.\n\nThe following integration tests have been added for Lease Ownership NFT\n- `test_lender_receives_a_lease_nft_after_lease_activation`: lender can receive a lease nft token with correct token information after the leaes got activated.\n- `test_lease_nft_can_be_transferred_to_other_account`: owner of the lease nft token can transfer the token to other account. The underlying lease's lender info will also be udpated correctly.\n- `test_claim_back_without_payout_using_lease_nft`: owner of the lease nft token can claim back the renting nft successfully & rent should be paid in full to original lender.\n- `test_claim_back_with_payout_using_lease_nft`: owner of the lease nft token can claim back the renting nft successfully & rent should be paid correctly to all payout accounds.\n\nInline comment and test output have also been added. Please refer the code.\n# Tamagotchi\n"}}},{"rowIdx":873,"cells":{"repoName":{"kind":"string","value":"kels-orien_nft-marketplace-part-1"},"tree":{"kind":"string","value":"README.md\nnft-contract\n Cargo.toml\n build.bat\n build.sh\n src\n approval.rs\n enumeration.rs\n events.rs\n internal.rs\n lib.rs\n metadata.rs\n mint.rs\n nft_core.rs\n royalty.rs\n test.sh\npackage-lock.json\npackage.json\nsrc\n App.css\n App.js\n Close.js\n Modal.js\n assets\n near-logo.svg\n config.js\n fonts\n OFL.txt\n README.txt\n index.html\n index.js\n useModal.js\n"},"readme":{"kind":"string","value":"# nft-marketplace-part-1\nA [tutorial](https://dev.to/kels_orien/building-a-full-stack-nft-market-place-with-near-protocol-and-reactjs-ak9) of an NFT Market Place built using Near Protocol and React.js.\n\n#### Preview\n\n\n### Prerequisites\n* [Nodejs](https://github.com/nvm-sh/nvm)\n* [NEAR Wallet Account](https://wallet.testnet.near.org/)\n* [Rust Toolchain](https://docs.near.org/docs/develop/contracts/rust/intro#installing-the-rust-toolchain)\n* [NEAR-CLI](https://docs.near.org/docs/tools/near-cli#setup)\n\n## Getting Started\nNear Protocol uses [rust](https://www.rust-lang.org/) programming language for it's smart contracts. We are going to start with a rust contract template.\n\n#### To run this app locally, follow below steps:\n\n##### Clone using command line interface:\n```\ngit clone https://github.com/kels-orien/nft-marketplace-part-1.git\n```\n\n##### Create wallet testnet account\nopen [wallet testnet account](wallet.testnet.near.org/)\n\n##### From the `nft-contract` folder/directory using command CLI, login to near wallet account\n\n`near login`\n\n##### Build the contract\nFrom `nft-contract` directory using CLI:\n\nFor Windows users:\n\n```\n/build.bat\n```\n\nFor Mac and Linux users:\n\n```\n/build.sh\n```\n\n##### Create a subaccount\n\nTo create subaccount from `nft-contract` directory via CLI use command:\n\n```\nnear create-account nft-contract.youraccountname.testnet --masterAccount youraccountname.testnet\n\n```\n\n##### Deploy the contract\n```\nnear deploy --accountId nft-contract.youraccountname.testnet --wasmFile res/nft_contract.wasm\n\n```\n\n##### Edit contract name\nChange the `youraccountName` part of the `contractName` constant in `config.js` file to your own account name.\n\n##### Install packages for frontend\n\nGo to root directory `nft-marketplac-part-1` using CLI and install packages:\n\n```\ncd ..\nnpm install\n\n```\n\n##### Launch frontend\n\n```\nnpm start\n\n```\n"}}},{"rowIdx":874,"cells":{"repoName":{"kind":"string","value":"huerta2502_urdemocracy"},"tree":{"kind":"string","value":"README.md\nas-pect.config.js\nasconfig.json\nassembly\n __tests__\n main.spec.ts\n as_types.d.ts\n index.ts\n model.ts\n tsconfig.json\ncompile.js\nconcept.txt\nneardev\n dev-account.env\npackage.json\nsrc\n index.html\n main.js\n profile.html\n profile.js\n"},"readme":{"kind":"string","value":"# urdemocracy\n====================\n> Project developed for GSC ESCOM IPN NEAR Protocol blockchain course.\n## urdemocracy is a software tool to help decision making process in political societies focused on a participatory democracy paradigm using near protocol blockchain.\n\n# urdemocracy lets you:\n1. Create user account\n2. Create collectives\n3. Register Deliberations for collectives\n4. Register Resources and Results for registered Delliberations.\n5. Register Followups for Deliberation Results\n\n## Pre-requisites:\n1. node.js >=12 installed (https://nodejs.org)\n2. yarn installed\n ```bash\n npm install --global yarn\n ```\n3. install dependencias\n ```bash\n yarn install --frozen-lockfile\n ```\n4. create a new account in NEAR testnet [testnet](https://docs.near.org/docs/develop/basics/create-account#creating-a-testnet-account) \n5. install NEAR CLI\n ```bash\n yarn install --global near-cli\n ```\n6. authorize NEAR CLI to access your NEAR Account\n ```bash\n near login\n ```\n\n### Clone this repository\n```bash\n git clone https://github.com/huerta2502/urdemocracy\n cd urdemocracy\n```\n\n### Install project dependecies and compile the smart contract\n```bash\n yarn install\n yarn build:contract:debug\n```\n\n### Deploy the contract to the NEAR testnet\n```bash\n yarn dev:deploy:contract\n```\n\n### Install frontend dependeices\n```bash\n yarn install\n```\n\n### Execute frontend\n```bash\n yarn start\n```\n"}}},{"rowIdx":875,"cells":{"repoName":{"kind":"string","value":"esaminu_console-donation-template-q2e5"},"tree":{"kind":"string","value":".github\n scripts\n runfe.sh\n workflows\n deploy-to-console.yml\n readme.yml\n tests.yml\n.gitpod.yml\nREADME.md\ncontract\n README.md\n build.sh\n deploy.sh\n package-lock.json\n package.json\n src\n contract.ts\n model.ts\n utils.ts\n tsconfig.json\nintegration-tests\n package-lock.json\n package.json\n src\n main.ava.ts\npackage-lock.json\npackage.json\n"},"readme":{"kind":"string","value":"# Donation Contract\n\nThe smart contract exposes methods to handle donating $NEAR to a `beneficiary`.\n\n```ts\n@call\ndonate() {\n // Get who is calling the method and how much $NEAR they attached\n let donor = near.predecessorAccountId(); \n let donationAmount: bigint = near.attachedDeposit() as bigint;\n\n let donatedSoFar = this.donations.get(donor) === null? BigInt(0) : BigInt(this.donations.get(donor) as string)\n let toTransfer = donationAmount;\n\n // This is the user's first donation, lets register it, which increases storage\n if(donatedSoFar == BigInt(0)) {\n assert(donationAmount > STORAGE_COST, `Attach at least ${STORAGE_COST} yoctoNEAR`);\n\n // Subtract the storage cost to the amount to transfer\n toTransfer -= STORAGE_COST\n }\n\n // Persist in storage the amount donated so far\n donatedSoFar += donationAmount\n this.donations.set(donor, donatedSoFar.toString())\n\n // Send the money to the beneficiary\n const promise = near.promiseBatchCreate(this.beneficiary)\n near.promiseBatchActionTransfer(promise, toTransfer)\n\n // Return the total amount donated so far\n return donatedSoFar.toString()\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\nnpm run deploy\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\nThe contract will be automatically initialized with a default `beneficiary`.\n\nTo initialize the contract yourself do:\n\n```bash\n# Use near-cli to initialize contract (optional)\nnear call <dev-account> init '{\"beneficiary\":\"<account>\"}' --accountId <dev-account>\n```\n\n<br />\n\n## 2. Get Beneficiary\n`beneficiary` is a read-only method (`view` method) that returns the beneficiary of the donations.\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\nnear view <dev-account> beneficiary\n```\n\n<br />\n\n## 3. Get Number of Donations\n\n`donate` forwards any attached money to the `beneficiary` while keeping track of it.\n\n`donate` is a payable method for which can only be invoked using a NEAR account. The account needs to attach money and pay GAS for the transaction.\n\n```bash\n# Use near-cli to donate 1 NEAR\nnear call <dev-account> donate --amount 1 --accountId <account>\n```\n\n**Tip:** If you would like to `donate` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n# Donation 💸 \n[](https://docs.near.org/tutorials/welcome)\n[](https://gitpod.io/#/https://github.com/near-examples/donation-js)\n[](https://docs.near.org/develop/contracts/anatomy)\n[](https://docs.near.org/develop/integrate/frontend)\n[](https://actions-badge.atrox.dev/near-examples/donation-js/goto)\n\nOur Donation example enables to forward money to an account while keeping track of it. It is one of the simplest examples on making a contract receive and send money.\n\n\n\n# What This Example Shows\n\n1. How to receive and transfer $NEAR on a contract.\n2. How to divide a project into multiple modules.\n3. How to handle the storage costs.\n4. How to handle transaction results.\n5. How to use a `Map`.\n\n<br />\n\n# Quickstart\n\nClone this repository locally or [**open it in gitpod**](https://gitpod.io/#/github.com/near-examples/donation-js). Then follow these steps:\n\n### 1. Install Dependencies\n```bash\nnpm install\n```\n\n### 2. Test the Contract\nDeploy your contract in a sandbox and simulate interactions from users.\n\n```bash\nnpm test\n```\n\n### 3. Deploy the Contract\nBuild the contract and deploy it in a testnet account\n```bash\nnpm run deploy\n```\n\n---\n\n# Learn More\n1. Learn more about the contract through its [README](./contract/README.md).\n2. Check [**our documentation**](https://docs.near.org/develop/welcome).\n"}}},{"rowIdx":876,"cells":{"repoName":{"kind":"string","value":"neararabic_near-hello-world-rs"},"tree":{"kind":"string","value":"Cargo.toml\nREADME.md\nrustfmt.toml\nsrc\n lib.rs\n"},"readme":{"kind":"string","value":"# مرحباً نير مع رست NEAR Rust Hello World!\n\nمشروع بسيط يعمل كنقطة بداية لمشاريعك ( العقود الذكية) على شبكة نيــر باستخدام لغة البرمجة رست Rust\n\n## لتشغيل المشروع\n\nيحتاج المشروع لتثبيت أدوات التطوير الخاصة بلغة رست و ويب أسمبلي rust and web assembly tool chain\nيمكن اتباع خطوات تثبيتهم هنــاhttps://www.near-sdk.io/\n\n1- قم بنسخ المشروع لجهازك clone\n\n2- من داخل مجلد المشروع فى شاشة الأوامر terminal قم بكتابة الأمر التالي\n\n```\nenv 'RUSTFLAGS=-C link-arg=-s' cargo build --target wasm32-unknown-unknown --release\n```\n\n- ملحوظة: الجزء `env 'RUSTFLAGS=-C link-arg=-s'` يقوم بعمل تحسين لعملية تحويل الكود و يؤثر جذرياً على حجم الملف الناتج و بالتالى تكلفة رفع الملف و استضافته على البلوك تشين. إذا كان الملف الناتج من العملية السابقة أكبر من 200 كيلو بايت لديك (14 ميجا بايت مثلاً أو أكثر) فهذا يعنى أن الأمر لم يعمل بشكل صحيح و يجب عليك فحص إعدادات رست و تفعيله.\n\n3- ستلاحظ وجود ملفات جديدة تم انشائها داخل مجلد target و منها الملف `near_rust_helloworld.wasm`\n\n4- يمكنك رفع هذا الملف مباشرة على البلوك تشين بالطرق المعتادة مثل\n\n```\n near dev-deploy .\\target\\wasm32-unknown-unknown\\release\\near_rust_helloworld.wasm\n```\n\n5- يمكنك التجربة باستدعاء الدالة `hello_world`\n\n```\nnear view CONTRACT_ACCOUNT_ID hello_world\n```\n"}}},{"rowIdx":877,"cells":{"repoName":{"kind":"string","value":"near_near-discovery-components"},"tree":{"kind":"string","value":".github\n ISSUE_TEMPLATE\n bug_report.md\n feature_request.md\n new-dig-component.md\n release.yml\n workflows\n deploy-dev-testnet.yml\n deploy-prod-mainnet.yml\n deploy-prod-testnet.yml\n promote-develop-to-main.yml\n prs_must_have_labels.yml\n release_notes.yml\n stale.yml\nCODE_OF_CONDUCT.md\nCONTRIBUTING.md\nREADME.md\ncommitlint.config.js\nindexers\n README.md\n accounts\n accounts.js\n accounts.sql\n components\n components.js\n components.sql\n entities\n entities.js\n entities.sql\n entities_tests.js\n test_block.js\n feed\n README.md\n feed.js\n feed.sql\n relationships.json\n moderation\n moderation.js\n moderation.sql\n notifications\n notifications.js\n notifications.sql\n relationships.json\n social_feed\n social_feed.js\n social_feed.sql\n verifications\n verifications.js\n verifications.sql\npackage.json\nreplacements.dev.json\nreplacements.mainnet.json\nreplacements.testnet.json\nsrc\n AI\n DO_NOT_USE.md\n ActivityFeeds\n test.js\n AppLibrary\n IndexPage.metadata.json\n Nearcon\n IndexPage.metadata.json\n DIG\n Accordion.metadata.json\n Avatar.metadata.json\n Badge.metadata.json\n Button.metadata.json\n Checkbox.metadata.json\n Chip.metadata.json\n Dialog.metadata.json\n DropdownMenu.metadata.json\n Input.metadata.json\n InputSearch.metadata.json\n InputSelect.metadata.json\n InputTags.metadata.json\n InputTextarea.metadata.json\n OverviewPage.metadata.json\n Tabs.metadata.json\n Theme.metadata.json\n Toast.metadata.json\n Tooltip.metadata.json\n DS\n Button.metadata.json\n Theme.metadata.json\n FastAuth.metadata.json\n Onboarding\n ComponentCard.metadata.json\n ComponentCollection.metadata.json\n Starter.metadata.json\nvm.d.ts\n"},"readme":{"kind":"string","value":"# QueryApi Indexers used by components\n\nSeveral components use QueryApi Indexers as a source of data, specifically the ActivityFeed Posts & 'Following' Posts.\n\nThese indexers can be modified at https://near.org/dataplatform.near/widget/QueryApi.App under the dataplatform.near account.\n\nEach indexer has a .sql schema file and a .js file which contains the Indexer Function code.\n# Feed indexer\nThis indexer holds the top level views used to display the feed.\nIt prevents a circular reference between the social_feed and moderation indexers.\n\nThe relationships.json file documents the manually created GraphQL relationships used by the feed, in hasura metadata format. \nAt some point QueryApi indexers may support a similar format for declarative relationships.\n# Near Discovery Components\n\nThis is a repository that holds the source code of all NEAR discovery components that the team maintains for [near.org](https://near.org).\n\nComponents will be deployed to production automatically as they are merged into the main branch. This occurs weekly, on Thursdays.\n\nKeep in mind that folders under `src` will be prepended to the component name when it's deployed. E.g. `src/post/comment.jsx` will be deployed as `post.comment`.\n\n### Deployments Across Discovery Gateways\n#### tl;dr;\n>test.beta.near.org => discom-dev.testnet\n\n>test.near.org => discom.testnet\n\n>near.org => near TLA\n\n>beta.near.org => near TLA\n\nThe [discovery gateway](https://github.com/near/near-discovery) deploys its main and develop branches across environments as follows\n- the `main` branch is deployed on [near.org](https://near.org), pointing to `mainnet` and [test.near.org](https://test.near.org) pointing to `testnet`\n- the `develop` branch is deployed to [beta.near.org](https://beta.near.org), pointing to `mainnet`, and [test.beta.near.org](https://test.beta.near.org), pointing to `testnet`\n\nThis `discovery-components` repo deploys main and develop branches across accounts as follows\n- the `main` branch deploys components to the near top-level-acount for `mainnet` and `discom.testnet` for `testnet` except where indicated otherwise in replacements.[mainnet/testnet].json\n- the `develop` branch deploys components to `discom-dev.testnet` except where indicated otherwise in replacements.dev.json; there is currently no mainnet deployment for the develop branch.\n\n## Contributing\n\nPlease review the [contribution guide](CONTRIBUTING.md)\n\n## Local Development\n\nPlease review the [Local development with BOS-Loader](CONTRIBUTING.md#local-development-with-bos-loader)\n\n*Note:* This repository is not compatible with the [VS Code Extension](https://docs.near.org/bos/dev/vscode) due to the [replacements](CONTRIBUTING.md#testing-across-multiple-environments) strategy featured in this repository.\n\n## Troubleshooting Deployments\n\n`near-social` cli tool will attempt to deploy any updated components with 1 NEAR of deposit and 100 Tgas.\n\nThe deployment may fail if too many changes are present. There are several solutions for this. You can either plan releases more often or release components in batches from your local using `near-social`.\n\nIf you get a `Not enough storage balance` error, you will need to make sure that the NEAR account has enough storage staked on the `social.near` contract. You can view the current storage and available storage for any account using `near-cli-rs`:\n\n`near-cli contract call-function as-read-only social.near storage_balance_of json-args '{\"account_id\":\"adminalpha.near\"}' network-config mainnet now`\n\nNote: replace `adminalpha.near` with any other account name on mainnet.\n\nYou can then stake more of your NEAR for storage on `social.near` using `near-cli-rs`:\n\n`near-cli contract call-function as-transaction social.near storage_deposit json-args {} prepaid-gas '100.000 TeraGas' attached-deposit '0.5 NEAR' sign-as adminalpha.near network-config mainnet sign-with-seed-phrase '{{REPLACE_WITH_SEED_PHRASE}}' --seed-phrase-hd-path 'm/44'\\''/397'\\''/0'\\\n"}}},{"rowIdx":878,"cells":{"repoName":{"kind":"string","value":"Na3aga_rust-near-basic"},"tree":{"kind":"string","value":"Cargo.toml\nREADME.md\nbuild.bat\nbuild.sh\nsrc\n lib.rs\ntest.sh\n"},"readme":{"kind":"string","value":"# Rust Smart Contract Template\n\n## Getting started\n\nTo get started with this template:\n\n1. Click the \"Use this template\" button to create a new repo based on this template\n2. Update line 2 of `Cargo.toml` with your project name\n3. Update line 4 of `Cargo.toml` with your project author names\n4. Set up the [prerequisites](https://github.com/near/near-sdk-rs#pre-requisites)\n5. Begin writing your smart contract in `src/lib.rs`\n6. Test the contract \n\n `cargo test -- --nocapture`\n\n8. Build the contract\n\n `RUSTFLAGS='-C link-arg=-s' cargo build --target wasm32-unknown-unknown --release`\n\n**Get more info at:**\n\n* [Rust Smart Contract Quick Start](https://docs.near.org/docs/develop/contracts/rust/intro)\n* [Rust SDK Book](https://www.near-sdk.io/)\n"}}},{"rowIdx":879,"cells":{"repoName":{"kind":"string","value":"nearprotocol_leaderboard"},"tree":{"kind":"string","value":".vscode\n launch.json\n settings.json\nREADME.md\ndatabase.rules.json\ndist\n index.html\nfirebase.json\nnode_modules\n .bin\n sha.js\n @babel\n code-frame\n README.md\n lib\n index.js\n package.json\n core\n README.md\n lib\n config\n caching.js\n config-chain.js\n config-descriptors.js\n files\n configuration.js\n index-browser.js\n index.js\n package.js\n plugins.js\n types.js\n utils.js\n full.js\n helpers\n config-api.js\n environment.js\n index.js\n item.js\n partial.js\n pattern-to-regex.js\n plugin.js\n util.js\n validation\n option-assertions.js\n options.js\n plugins.js\n removed.js\n index.js\n parse.js\n tools\n build-external-helpers.js\n transform-ast.js\n transform-file-browser.js\n transform-file.js\n transform.js\n transformation\n block-hoist-plugin.js\n file\n file.js\n generate.js\n merge-map.js\n index.js\n normalize-file.js\n normalize-opts.js\n plugin-pass.js\n util\n missing-plugin-helper.js\n node_modules\n debug\n CHANGELOG.md\n README.md\n dist\n debug.js\n package.json\n src\n browser.js\n common.js\n index.js\n node.js\n json5\n CHANGELOG.md\n LICENSE.md\n README.md\n dist\n index.js\n index.min.js\n lib\n cli.js\n index.js\n parse.js\n register.js\n require.js\n stringify.js\n unicode.js\n util.js\n package.json\n ms\n index.js\n license.md\n package.json\n readme.md\n package.json\n generator\n README.md\n lib\n buffer.js\n generators\n base.js\n classes.js\n expressions.js\n flow.js\n index.js\n jsx.js\n methods.js\n modules.js\n statements.js\n template-literals.js\n types.js\n typescript.js\n index.js\n node\n index.js\n parentheses.js\n whitespace.js\n printer.js\n source-map.js\n package.json\n helper-annotate-as-pure\n README.md\n lib\n index.js\n package.json\n helper-builder-binary-assignment-operator-visitor\n README.md\n lib\n index.js\n package.json\n helper-builder-react-jsx\n README.md\n lib\n index.js\n package.json\n helper-call-delegate\n README.md\n lib\n index.js\n package.json\n helper-define-map\n README.md\n lib\n index.js\n package.json\n helper-explode-assignable-expression\n README.md\n lib\n index.js\n package.json\n helper-function-name\n README.md\n lib\n index.js\n package.json\n helper-get-function-arity\n README.md\n lib\n index.js\n package.json\n helper-hoist-variables\n README.md\n lib\n index.js\n package.json\n helper-member-expression-to-functions\n README.md\n lib\n index.js\n package.json\n helper-module-imports\n README.md\n lib\n import-builder.js\n import-injector.js\n index.js\n is-module.js\n package.json\n helper-module-transforms\n README.md\n lib\n index.js\n 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NormalModuleReplacementPlugin.js\n NullFactory.js\n OptionsApply.js\n OptionsDefaulter.js\n Parser.js\n ParserHelpers.js\n PrefetchPlugin.js\n ProgressPlugin.js\n ProvidePlugin.js\n RawModule.js\n RecordIdsPlugin.js\n RemovedPluginError.js\n RequestShortener.js\n RequireJsStuffPlugin.js\n ResolverFactory.js\n RuleSet.js\n RuntimeTemplate.js\n SetVarMainTemplatePlugin.js\n SingleEntryPlugin.js\n SizeFormatHelpers.js\n SourceMapDevToolModuleOptionsPlugin.js\n SourceMapDevToolPlugin.js\n Stats.js\n SystemMainTemplatePlugin.js\n Template.js\n TemplatedPathPlugin.js\n UmdMainTemplatePlugin.js\n UnsupportedFeatureWarning.js\n UseStrictPlugin.js\n WarnCaseSensitiveModulesPlugin.js\n WarnNoModeSetPlugin.js\n WatchIgnorePlugin.js\n Watching.js\n WebpackError.js\n WebpackOptionsApply.js\n WebpackOptionsDefaulter.js\n WebpackOptionsValidationError.js\n compareLocations.js\n debug\n ProfilingPlugin.js\n dependencies\n AMDDefineDependency.js\n AMDDefineDependencyParserPlugin.js\n AMDPlugin.js\n AMDRequireArrayDependency.js\n AMDRequireContextDependency.js\n AMDRequireDependenciesBlock.js\n AMDRequireDependenciesBlockParserPlugin.js\n AMDRequireDependency.js\n AMDRequireItemDependency.js\n CommonJsPlugin.js\n CommonJsRequireContextDependency.js\n CommonJsRequireDependency.js\n CommonJsRequireDependencyParserPlugin.js\n ConstDependency.js\n ContextDependency.js\n ContextDependencyHelpers.js\n ContextDependencyTemplateAsId.js\n ContextDependencyTemplateAsRequireCall.js\n ContextElementDependency.js\n CriticalDependencyWarning.js\n DelegatedExportsDependency.js\n DelegatedSourceDependency.js\n DependencyReference.js\n DllEntryDependency.js\n HarmonyAcceptDependency.js\n HarmonyAcceptImportDependency.js\n HarmonyCompatibilityDependency.js\n HarmonyDetectionParserPlugin.js\n HarmonyExportDependencyParserPlugin.js\n HarmonyExportExpressionDependency.js\n HarmonyExportHeaderDependency.js\n HarmonyExportImportedSpecifierDependency.js\n HarmonyExportSpecifierDependency.js\n HarmonyImportDependency.js\n HarmonyImportDependencyParserPlugin.js\n HarmonyImportSideEffectDependency.js\n HarmonyImportSpecifierDependency.js\n HarmonyInitDependency.js\n HarmonyModulesPlugin.js\n HarmonyTopLevelThisParserPlugin.js\n ImportContextDependency.js\n ImportDependenciesBlock.js\n ImportDependency.js\n ImportEagerDependency.js\n ImportParserPlugin.js\n ImportPlugin.js\n ImportWeakDependency.js\n JsonExportsDependency.js\n LoaderDependency.js\n LoaderPlugin.js\n LocalModule.js\n LocalModuleDependency.js\n LocalModulesHelpers.js\n ModuleDependency.js\n ModuleDependencyTemplateAsId.js\n ModuleDependencyTemplateAsRequireId.js\n ModuleHotAcceptDependency.js\n ModuleHotDeclineDependency.js\n MultiEntryDependency.js\n NullDependency.js\n PrefetchDependency.js\n RequireContextDependency.js\n RequireContextDependencyParserPlugin.js\n RequireContextPlugin.js\n RequireEnsureDependenciesBlock.js\n RequireEnsureDependenciesBlockParserPlugin.js\n RequireEnsureDependency.js\n RequireEnsureItemDependency.js\n RequireEnsurePlugin.js\n RequireHeaderDependency.js\n RequireIncludeDependency.js\n RequireIncludeDependencyParserPlugin.js\n RequireIncludePlugin.js\n RequireResolveContextDependency.js\n RequireResolveDependency.js\n RequireResolveDependencyParserPlugin.js\n RequireResolveHeaderDependency.js\n SingleEntryDependency.js\n SystemPlugin.js\n UnsupportedDependency.js\n WebAssemblyExportImportedDependency.js\n WebAssemblyImportDependency.js\n WebpackMissingModule.js\n getFunctionExpression.js\n formatLocation.js\n node\n NodeChunkTemplatePlugin.js\n NodeEnvironmentPlugin.js\n NodeHotUpdateChunkTemplatePlugin.js\n NodeMainTemplate.runtime.js\n NodeMainTemplateAsync.runtime.js\n NodeMainTemplatePlugin.js\n NodeOutputFileSystem.js\n NodeSourcePlugin.js\n NodeTargetPlugin.js\n NodeTemplatePlugin.js\n NodeWatchFileSystem.js\n ReadFileCompileWasmTemplatePlugin.js\n optimize\n AggressiveMergingPlugin.js\n AggressiveSplittingPlugin.js\n ChunkModuleIdRangePlugin.js\n ConcatenatedModule.js\n EnsureChunkConditionsPlugin.js\n FlagIncludedChunksPlugin.js\n LimitChunkCountPlugin.js\n MergeDuplicateChunksPlugin.js\n MinChunkSizePlugin.js\n MinMaxSizeWarning.js\n ModuleConcatenationPlugin.js\n NaturalChunkOrderPlugin.js\n OccurrenceChunkOrderPlugin.js\n OccurrenceModuleOrderPlugin.js\n OccurrenceOrderPlugin.js\n RemoveEmptyChunksPlugin.js\n RemoveParentModulesPlugin.js\n RuntimeChunkPlugin.js\n SideEffectsFlagPlugin.js\n SplitChunksPlugin.js\n performance\n AssetsOverSizeLimitWarning.js\n EntrypointsOverSizeLimitWarning.js\n NoAsyncChunksWarning.js\n SizeLimitsPlugin.js\n util\n Queue.js\n Semaphore.js\n SetHelpers.js\n SortableSet.js\n StackedSetMap.js\n TrackingSet.js\n cachedMerge.js\n createHash.js\n deterministicGrouping.js\n identifier.js\n objectToMap.js\n validateSchema.js\n wasm\n UnsupportedWebAssemblyFeatureError.js\n WasmFinalizeExportsPlugin.js\n WasmMainTemplatePlugin.js\n WebAssemblyGenerator.js\n WebAssemblyInInitialChunkError.js\n WebAssemblyJavascriptGenerator.js\n WebAssemblyModulesPlugin.js\n WebAssemblyParser.js\n WebAssemblyUtils.js\n web\n FetchCompileWasmTemplatePlugin.js\n JsonpChunkTemplatePlugin.js\n JsonpExportMainTemplatePlugin.js\n JsonpHotUpdateChunkTemplatePlugin.js\n JsonpMainTemplate.runtime.js\n JsonpMainTemplatePlugin.js\n JsonpTemplatePlugin.js\n WebEnvironmentPlugin.js\n webpack.js\n webpack.web.js\n webworker\n WebWorkerChunkTemplatePlugin.js\n WebWorkerHotUpdateChunkTemplatePlugin.js\n WebWorkerMainTemplate.runtime.js\n WebWorkerMainTemplatePlugin.js\n WebWorkerTemplatePlugin.js\n package.json\n schemas\n WebpackOptions.json\n ajv.absolutePath.js\n plugins\n BannerPlugin.json\n DllPlugin.json\n DllReferencePlugin.json\n HashedModuleIdsPlugin.json\n IgnorePlugin.json\n LoaderOptionsPlugin.json\n ProgressPlugin.json\n SourceMapDevToolPlugin.json\n WatchIgnorePlugin.json\n debug\n ProfilingPlugin.json\n optimize\n AggressiveSplittingPlugin.json\n LimitChunkCountPlugin.json\n MinChunkSizePlugin.json\n OccurrenceOrderChunkIdsPlugin.json\n OccurrenceOrderModuleIdsPlugin.json\n web_modules\n node-libs-browser.js\n websocket-driver\n CHANGELOG.md\n LICENSE.md\n README.md\n lib\n websocket\n driver.js\n driver\n base.js\n client.js\n draft75.js\n draft76.js\n headers.js\n hybi.js\n hybi\n frame.js\n message.js\n proxy.js\n server.js\n stream_reader.js\n http_parser.js\n streams.js\n package.json\n websocket-extensions\n CHANGELOG.md\n LICENSE.md\n README.md\n lib\n parser.js\n pipeline\n README.md\n cell.js\n functor.js\n index.js\n pledge.js\n ring_buffer.js\n websocket_extensions.js\n package.json\n which-module\n CHANGELOG.md\n README.md\n index.js\n package.json\n which\n CHANGELOG.md\n README.md\n package.json\n which.js\n wide-align\n README.md\n align.js\n package.json\n worker-farm\n .travis.yml\n LICENSE.md\n README.md\n examples\n basic\n child.js\n index.js\n pi\n calc.js\n index.js\n index.d.ts\n lib\n child\n index.js\n farm.js\n fork.js\n index.js\n package.json\n tests\n child.js\n debug.js\n index.js\n wrap-ansi\n index.js\n node_modules\n ansi-regex\n index.js\n package.json\n readme.md\n is-fullwidth-code-point\n index.js\n package.json\n readme.md\n string-width\n index.js\n package.json\n readme.md\n strip-ansi\n index.js\n package.json\n readme.md\n package.json\n readme.md\n wrappy\n README.md\n package.json\n wrappy.js\n xtend\n README.md\n immutable.js\n mutable.js\n package.json\n test.js\n y18n\n CHANGELOG.md\n README.md\n index.js\n package.json\n yallist\n README.md\n iterator.js\n package.json\n yallist.js\n yargs-parser\n CHANGELOG.md\n LICENSE.txt\n README.md\n index.js\n lib\n tokenize-arg-string.js\n package.json\n yargs\n CHANGELOG.md\n README.md\n index.js\n lib\n apply-extends.js\n argsert.js\n command.js\n completion.js\n levenshtein.js\n middleware.js\n obj-filter.js\n usage.js\n validation.js\n yerror.js\n locales\n be.json\n de.json\n en.json\n es.json\n fr.json\n hi.json\n hu.json\n id.json\n it.json\n ja.json\n ko.json\n nb.json\n nl.json\n nn.json\n pirate.json\n pl.json\n pt.json\n pt_BR.json\n ru.json\n th.json\n tr.json\n zh_CN.json\n zh_TW.json\n package.json\n yargs.js\n|\n| :----------: |\nnested-env-vars\n \nLOAD()\nDROPBITS(4)\nRESTORE()\nBYTEBITS()\nDROPBITS(1)\nDROPBITS(2)\nzmemcpy(put, next, copy);\nDROPBITS(5)\nDROPBITS(3)\nPULLBYTE()\nDROPBITS(here.bits)\nDROPBITS(7)\nDROPBITS(last.bits)\nDROPBITS(state.extra)\nWelcome to debugging React\n(C)\npackage-lock.json\npackage.json\npublic\n index.html\nsrc\n index.js\n utils\n connector.js\n countries.js\nwebpack.config.js\n"},"readme":{"kind":"string","value":"# Elliptic [](http://travis-ci.org/indutny/elliptic) [](https://coveralls.io/github/indutny/elliptic?branch=master) [](https://codeclimate.com/github/indutny/elliptic)\n\n[](https://saucelabs.com/u/gh-indutny-elliptic)\n\nFast elliptic-curve cryptography in a plain javascript implementation.\n\nNOTE: Please take a look at http://safecurves.cr.yp.to/ before choosing a curve\nfor your cryptography operations.\n\n## Incentive\n\nECC is much slower than regular RSA cryptography, the JS implementations are\neven more slower.\n\n## Benchmarks\n\n```bash\n$ node benchmarks/index.js\nBenchmarking: sign\nelliptic#sign x 262 ops/sec ±0.51% (177 runs sampled)\neccjs#sign x 55.91 ops/sec ±0.90% (144 runs sampled)\n------------------------\nFastest is elliptic#sign\n========================\nBenchmarking: verify\nelliptic#verify x 113 ops/sec ±0.50% (166 runs sampled)\neccjs#verify x 48.56 ops/sec ±0.36% (125 runs sampled)\n------------------------\nFastest is elliptic#verify\n========================\nBenchmarking: gen\nelliptic#gen x 294 ops/sec ±0.43% (176 runs sampled)\neccjs#gen x 62.25 ops/sec ±0.63% (129 runs sampled)\n------------------------\nFastest is elliptic#gen\n========================\nBenchmarking: ecdh\nelliptic#ecdh x 136 ops/sec ±0.85% (156 runs sampled)\n------------------------\nFastest is elliptic#ecdh\n========================\n```\n\n## API\n\n### ECDSA\n\n```javascript\nvar EC = require('elliptic').ec;\n\n// Create and initialize EC context\n// (better do it once and reuse it)\nvar ec = new EC('secp256k1');\n\n// Generate keys\nvar key = ec.genKeyPair();\n\n// Sign the message's hash (input must be an array, or a hex-string)\nvar msgHash = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];\nvar signature = key.sign(msgHash);\n\n// Export DER encoded signature in Array\nvar derSign = signature.toDER();\n\n// Verify signature\nconsole.log(key.verify(msgHash, derSign));\n\n// CHECK WITH NO PRIVATE KEY\n\nvar pubPoint = key.getPublic();\nvar x = pubPoint.getX();\nvar y = pubPoint.getY();\n\n// Public Key MUST be either:\n// 1) '04' + hex string of x + hex string of y; or\n// 2) object with two hex string properties (x and y); or\n// 3) object with two buffer properties (x and y)\nvar pub = pubPoint.encode('hex'); // case 1\nvar pub = { x: x.toString('hex'), y: y.toString('hex') }; // case 2\nvar pub = { x: x.toBuffer(), y: y.toBuffer() }; // case 3\nvar pub = { x: x.toArrayLike(Buffer), y: y.toArrayLike(Buffer) }; // case 3\n\n// Import public key\nvar key = ec.keyFromPublic(pub, 'hex');\n\n// Signature MUST be either:\n// 1) DER-encoded signature as hex-string; or\n// 2) DER-encoded signature as buffer; or\n// 3) object with two hex-string properties (r and s); or\n// 4) object with two buffer properties (r and s)\n\nvar signature = '3046022100...'; // case 1\nvar signature = new Buffer('...'); // case 2\nvar signature = { r: 'b1fc...', s: '9c42...' }; // case 3\n\n// Verify signature\nconsole.log(key.verify(msgHash, signature));\n```\n\n### EdDSA\n\n```javascript\nvar EdDSA = require('elliptic').eddsa;\n\n// Create and initialize EdDSA context\n// (better do it once and reuse it)\nvar ec = new EdDSA('ed25519');\n\n// Create key pair from secret\nvar key = ec.keyFromSecret('693e3c...'); // hex string, array or Buffer\n\n// Sign the message's hash (input must be an array, or a hex-string)\nvar msgHash = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];\nvar signature = key.sign(msgHash).toHex();\n\n// Verify signature\nconsole.log(key.verify(msgHash, signature));\n\n// CHECK WITH NO PRIVATE KEY\n\n// Import public key\nvar pub = '0a1af638...';\nvar key = ec.keyFromPublic(pub, 'hex');\n\n// Verify signature\nvar signature = '70bed1...';\nconsole.log(key.verify(msgHash, signature));\n```\n\n### ECDH\n\n```javascript\nvar EC = require('elliptic').ec;\nvar ec = new EC('curve25519');\n\n// Generate keys\nvar key1 = ec.genKeyPair();\nvar key2 = ec.genKeyPair();\n\nvar shared1 = key1.derive(key2.getPublic());\nvar shared2 = key2.derive(key1.getPublic());\n\nconsole.log('Both shared secrets are BN instances');\nconsole.log(shared1.toString(16));\nconsole.log(shared2.toString(16));\n```\n\nthree and more members:\n```javascript\nvar EC = require('elliptic').ec;\nvar ec = new EC('curve25519');\n\nvar A = ec.genKeyPair();\nvar B = ec.genKeyPair();\nvar C = ec.genKeyPair();\n\nvar AB = A.getPublic().mul(B.getPrivate())\nvar BC = B.getPublic().mul(C.getPrivate())\nvar CA = C.getPublic().mul(A.getPrivate())\n\nvar ABC = AB.mul(C.getPrivate())\nvar BCA = BC.mul(A.getPrivate())\nvar CAB = CA.mul(B.getPrivate())\n\nconsole.log(ABC.getX().toString(16))\nconsole.log(BCA.getX().toString(16))\nconsole.log(CAB.getX().toString(16))\n```\n\nNOTE: `.derive()` returns a [BN][1] instance.\n\n## Supported curves\n\nElliptic.js support following curve types:\n\n* Short Weierstrass\n* Montgomery\n* Edwards\n* Twisted Edwards\n\nFollowing curve 'presets' are embedded into the library:\n\n* `secp256k1`\n* `p192`\n* `p224`\n* `p256`\n* `p384`\n* `p521`\n* `curve25519`\n* `ed25519`\n\nNOTE: That `curve25519` could not be used for ECDSA, use `ed25519` instead.\n\n### Implementation details\n\nECDSA is using deterministic `k` value generation as per [RFC6979][0]. Most of\nthe curve operations are performed on non-affine coordinates (either projective\nor extended), various windowing techniques are used for different cases.\n\nAll operations are performed in reduction context using [bn.js][1], hashing is\nprovided by [hash.js][2]\n\n### Related projects\n\n* [eccrypto][3]: isomorphic implementation of ECDSA, ECDH and ECIES for both\n browserify and node (uses `elliptic` for browser and [secp256k1-node][4] for\n node)\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: http://tools.ietf.org/html/rfc6979\n[1]: https://github.com/indutny/bn.js\n[2]: https://github.com/indutny/hash.js\n[3]: https://github.com/bitchan/eccrypto\n[4]: https://github.com/wanderer/secp256k1-node\n# mime\n\nComprehensive MIME type mapping API based on mime-db module.\n\n## Install\n\nInstall with [npm](http://github.com/isaacs/npm):\n\n npm install mime\n\n## Contributing / Testing\n\n npm run test\n\n## Command Line\n\n mime [path_string]\n\nE.g.\n\n > mime scripts/jquery.js\n application/javascript\n\n## API - Queries\n\n### mime.lookup(path)\nGet the mime type associated with a file, if no mime type is found `application/octet-stream` is returned. Performs a case-insensitive lookup using the extension in `path` (the substring after the last '/' or '.'). E.g.\n\n```js\nvar mime = require('mime');\n\nmime.lookup('/path/to/file.txt'); // => 'text/plain'\nmime.lookup('file.txt'); // => 'text/plain'\nmime.lookup('.TXT'); // => 'text/plain'\nmime.lookup('htm'); // => 'text/html'\n```\n\n### mime.default_type\nSets the mime type returned when `mime.lookup` fails to find the extension searched for. (Default is `application/octet-stream`.)\n\n### mime.extension(type)\nGet the default extension for `type`\n\n```js\nmime.extension('text/html'); // => 'html'\nmime.extension('application/octet-stream'); // => 'bin'\n```\n\n### mime.charsets.lookup()\n\nMap mime-type to charset\n\n```js\nmime.charsets.lookup('text/plain'); // => 'UTF-8'\n```\n\n(The logic for charset lookups is pretty rudimentary. Feel free to suggest improvements.)\n\n## API - Defining Custom Types\n\nCustom type mappings can be added on a per-project basis via the following APIs.\n\n### mime.define()\n\nAdd custom mime/extension mappings\n\n```js\nmime.define({\n 'text/x-some-format': ['x-sf', 'x-sft', 'x-sfml'],\n 'application/x-my-type': ['x-mt', 'x-mtt'],\n // etc ...\n});\n\nmime.lookup('x-sft'); // => 'text/x-some-format'\n```\n\nThe first entry in the extensions array is returned by `mime.extension()`. E.g.\n\n```js\nmime.extension('text/x-some-format'); // => 'x-sf'\n```\n\n### mime.load(filepath)\n\nLoad mappings from an Apache \".types\" format file\n\n```js\nmime.load('./my_project.types');\n```\nThe .types file format is simple - See the `types` dir for examples.\nThis folder contains entry points for features from [WHATWG / W3C](https://github.com/zloirock/core-js/tree/v3#web-standards) with dependencies.\n# webpack-sources\n\nContains multiple classes which represent a `Source`. A `Source` can be asked for source code, size, source map and hash.\n\n## `Source`\n\nBase class for all sources.\n\n### Public methods\n\nAll methods should be considered as expensive as they may need to do computations.\n\n#### `source`\n\n``` js\nSource.prototype.source() -> String\n```\n\nReturns the represented source code as string.\n\n#### `size`\n\n``` js\nSource.prototype.size() -> Number\n```\n\nReturns the size in chars of the represented source code.\n\n#### `map`\n\n``` js\nSource.prototype.map(options: Object) -> Object | null\n```\n\nReturns the SourceMap of the represented source code as JSON. May return `null` if no SourceMap is available.\n\nThe `options` object can contain the following keys:\n\n* `columns: Boolean` (default `true`): If set to false the implementation may omit mappings for columns.\n* `module: Boolean` (default `true`): If set to false the implementation may omit inner mappings for modules.\n\n#### `sourceAndMap`\n\n``` js\nSource.prototype.sourceAndMap(options: Object) -> {\n\tcode: String,\n\tmap: Object\n}\n```\n\nReturns both, source code (like `Source.prototype.source()` and SourceMap (like `Source.prototype.map()`). This method could have better performance than calling `source()` and `map()` separately.\n\nSee `map()` for `options`.\n\n#### `updateHash`\n\n``` js\nSource.prototype.updateHash(hash: Hash) -> void\n```\n\nUpdates the provided `Hash` object with the content of the represented source code. (`Hash` is an object with an `update` method, which is called with string values)\n\n#### `node` (optional)\n\n``` js\nSource.prototype.node(options: Object) -> SourceNode\n```\n\nThis is an optional method. It may be `null` if not implemented.\n\nReturns a `SourceNode` (see source-map library) for the represented source code.\n\nSee `map()` for `options`.\n\n#### `listNode` (optional)\n\n``` js\nSource.prototype.listNode(options: Object) -> SourceNode\n```\n\nThis is an optional method. It may be `null` if not implemented.\n\nReturns a `SourceListMap` (see source-list-map library) for the represented source code.\n\nSee `map()` for `options`.\n\n## `RawSource`\n\nRepresents source code without SourceMap.\n\n``` js\nnew RawSource(sourceCode: String)\n```\n\n## `OriginalSource`\n\nRepresents source code, which is a copy of the original file.\n\n``` js\nnew OriginalSource(\n\tsourceCode: String,\n\tname: String\n)\n```\n\n* `sourceCode`: The source code.\n* `name`: The filename of the original source code.\n\nOriginalSource tries to create column mappings if requested, by splitting the source code at typical statement borders (`;`, `{`, `}`).\n\n## `SourceMapSource`\n\nRepresents source code with SourceMap, optionally having an additional SourceMap for the original source.\n\n``` js\nnew SourceMapSource(\n\tsourceCode: String,\n\tname: String,\n\tsourceMap: Object | String,\n\toriginalSource?: String,\n\tinnerSourceMap?: Object | String\n)\n```\n\n* `sourceCode`: The source code.\n* `name`: The filename of the original source code.\n* `sourceMap`: The SourceMap for the source code.\n* `originalSource`: The source code of the original file. Can be omitted if the `sourceMap` already contains the original source code.\n* `innerSourceMap`: The SourceMap for the `originalSource`/`name`.\n\n## `LineToLineMappedSource`\n\nRepresents source code, which is mapped line by line to the original file.\n\n``` js\nnew LineToLineMappedSource(\n\tsourceCode: String,\n\tname: String,\n\toriginalSource: String\n)\n```\n\n* `sourceCode`: The source code.\n* `name`: The filename of the original source code.\n* `originalSource`: The original source code.\n\n## `CachedSource`\n\nDecorates a `Source` and caches returned results of `map`, `source`, `size` and `sourceAndMap` in memory. Every other operation is delegated to the wrapped `Source`.\n\n``` js\nnew CachedSource(source: Source)\n```\n\n## `PrefixSource`\n\nPrefix every line of the decorated `Source` with a provided string.\n\n``` js\nnew PrefixSource(\n\tprefix: String,\n\tsource: Source\n)\n```\n\n## `ConcatSource`\n\nConcatenate mulitple `Source`s or strings to a single source.\n\n``` js\nnew ConcatSource(\n\t...items?: Source | String\n)\n```\n\n### Public methods\n\n#### `add`\n\n``` js\nConcatSource.prototype.add(item: Source | String)\n```\n\nAdds an item to the source.\t\n\n## `ReplaceSource`\n\nDecorates a `Source` with replacements and insertions of source code.\n\n### Public methods\n\n#### `replace`\n\n``` js\nReplaceSource.prototype.replace(\n\tstart: Number,\n\tend: Number,\n\treplacement: String\n)\n```\n\nReplaces chars from `start` (0-indexed, inclusive) to `end` (0-indexed, inclusive) with `replacement`.\n\nLocations represents locations in the original source and are not influenced by other replacements or insertions.\n\n#### `insert`\n\n``` js\nReplaceSource.prototype.insert(\n\tpos: Number,\n\tinsertion: String\n)\n```\n\nInserts the `insertion` before char `pos` (0-indexed).\n\nLocation represents location in the original source and is not influenced by other replacements or insertions.\n\n#### `original`\n\nGet decorated `Source`.\npako\n==========================================\n\n[](https://travis-ci.org/nodeca/pako)\n[](https://www.npmjs.org/package/pako)\n\n> zlib port to javascript, very fast!\n\n__Why pako is cool:__\n\n- Almost as fast in modern JS engines as C implementation (see benchmarks).\n- Works in browsers, you can browserify any separate component.\n- Chunking support for big blobs.\n- Results are binary equal to well known [zlib](http://www.zlib.net/) (now contains ported zlib v1.2.8).\n\nThis project was done to understand how fast JS can be and is it necessary to\ndevelop native C modules for CPU-intensive tasks. Enjoy the result!\n\n__Famous projects, using pako:__\n\n- [browserify](http://browserify.org/) (via [browserify-zlib](https://github.com/devongovett/browserify-zlib))\n- [JSZip](http://stuk.github.io/jszip/)\n- [mincer](https://github.com/nodeca/mincer)\n- [JS-Git](https://github.com/creationix/js-git) and\n [Tedit](https://chrome.google.com/webstore/detail/tedit-development-environ/ooekdijbnbbjdfjocaiflnjgoohnblgf)\n by [@creationix](https://github.com/creationix)\n\n__Benchmarks:__\n\n```\nnode v0.10.26, 1mb sample:\n\n deflate-dankogai x 4.73 ops/sec ±0.82% (15 runs sampled)\n deflate-gildas x 4.58 ops/sec ±2.33% (15 runs sampled)\n deflate-imaya x 3.22 ops/sec ±3.95% (12 runs sampled)\n ! deflate-pako x 6.99 ops/sec ±0.51% (21 runs sampled)\n deflate-pako-string x 5.89 ops/sec ±0.77% (18 runs sampled)\n deflate-pako-untyped x 4.39 ops/sec ±1.58% (14 runs sampled)\n * deflate-zlib x 14.71 ops/sec ±4.23% (59 runs sampled)\n inflate-dankogai x 32.16 ops/sec ±0.13% (56 runs sampled)\n inflate-imaya x 30.35 ops/sec ±0.92% (53 runs sampled)\n ! inflate-pako x 69.89 ops/sec ±1.46% (71 runs sampled)\n inflate-pako-string x 19.22 ops/sec ±1.86% (49 runs sampled)\n inflate-pako-untyped x 17.19 ops/sec ±0.85% (32 runs sampled)\n * inflate-zlib x 70.03 ops/sec ±1.64% (81 runs sampled)\n\nnode v0.11.12, 1mb sample:\n\n deflate-dankogai x 5.60 ops/sec ±0.49% (17 runs sampled)\n deflate-gildas x 5.06 ops/sec ±6.00% (16 runs sampled)\n deflate-imaya x 3.52 ops/sec ±3.71% (13 runs sampled)\n ! deflate-pako x 11.52 ops/sec ±0.22% (32 runs sampled)\n deflate-pako-string x 9.53 ops/sec ±1.12% (27 runs sampled)\n deflate-pako-untyped x 5.44 ops/sec ±0.72% (17 runs sampled)\n * deflate-zlib x 14.05 ops/sec ±3.34% (63 runs sampled)\n inflate-dankogai x 42.19 ops/sec ±0.09% (56 runs sampled)\n inflate-imaya x 79.68 ops/sec ±1.07% (68 runs sampled)\n ! inflate-pako x 97.52 ops/sec ±0.83% (80 runs sampled)\n inflate-pako-string x 45.19 ops/sec ±1.69% (57 runs sampled)\n inflate-pako-untyped x 24.35 ops/sec ±2.59% (40 runs sampled)\n * inflate-zlib x 60.32 ops/sec ±1.36% (69 runs sampled)\n```\n\nzlib's test is partially affected by marshalling (that make sense for inflate only).\nYou can change deflate level to 0 in benchmark source, to investigate details.\nFor deflate level 6 results can be considered as correct.\n\n__Install:__\n\nnode.js:\n\n```\nnpm install pako\n```\n\nbrowser:\n\n```\nbower install pako\n```\n\nExample & API\n-------------\n\nFull docs - http://nodeca.github.io/pako/\n\n```javascript\nvar pako = require('pako');\n\n// Deflate\n//\nvar input = new Uint8Array();\n//... fill input data here\nvar output = pako.deflate(input);\n\n// Inflate (simple wrapper can throw exception on broken stream)\n//\nvar compressed = new Uint8Array();\n//... fill data to uncompress here\ntry {\n var result = pako.inflate(compressed);\n} catch (err) {\n console.log(err);\n}\n\n//\n// Alternate interface for chunking & without exceptions\n//\n\nvar inflator = new pako.Inflate();\n\ninflator.push(chunk1, false);\ninflator.push(chunk2, false);\n...\ninflator.push(chunkN, true); // true -> last chunk\n\nif (inflator.err) {\n console.log(inflator.msg);\n}\n\nvar output = inflator.result;\n\n```\n\nSometime you can wish to work with strings. For example, to send\nbig objects as json to server. Pako detects input data type. You can\nforce output to be string with option `{ to: 'string' }`.\n\n```javascript\nvar pako = require('pako');\n\nvar test = { my: 'super', puper: [456, 567], awesome: 'pako' };\n\nvar binaryString = pako.deflate(JSON.stringify(test), { to: 'string' });\n\n//\n// Here you can do base64 encode, make xhr requests and so on.\n//\n\nvar restored = JSON.parse(pako.inflate(binaryString, { to: 'string' }));\n```\n\nNotes\n-----\n\nPako does not contain some specific zlib functions:\n\n- __deflate__ - methods `deflateCopy`, `deflateBound`, `deflateParams`,\n `deflatePending`, `deflatePrime`, `deflateTune`.\n- __inflate__ - methods `inflateCopy`, `inflateMark`,\n `inflatePrime`, `inflateGetDictionary`, `inflateSync`, `inflateSyncPoint`, `inflateUndermine`.\n- High level inflate/deflate wrappers (classes) may not support some flush\n modes. Those should work: Z_NO_FLUSH, Z_FINISH, Z_SYNC_FLUSH.\n\nAuthors\n-------\n\n- Andrey Tupitsin [@anrd83](https://github.com/andr83)\n- Vitaly Puzrin [@puzrin](https://github.com/puzrin)\n\nPersonal thanks to:\n\n- Vyacheslav Egorov ([@mraleph](https://github.com/mraleph)) for his awesome\n tutorials about optimising JS code for v8, [IRHydra](http://mrale.ph/irhydra/)\n tool and his advices.\n- David Duponchel ([@dduponchel](https://github.com/dduponchel)) for help with\n testing.\n\nOriginal implementation (in C):\n\n- [zlib](http://zlib.net/) by Jean-loup Gailly and Mark Adler.\n\nLicense\n-------\n\n- MIT - all files, except `/lib/zlib` folder\n- ZLIB - `/lib/zlib` content\nThis folder contains entry points for [stable ECMAScript features](https://github.com/zloirock/core-js/tree/v3#ecmascript) with dependencies.\n# Statuses\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nHTTP status utility for node.\n\nThis module provides a list of status codes and messages sourced from\na few different projects:\n\n * The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)\n * The [Node.js project](https://nodejs.org/)\n * The [NGINX project](https://www.nginx.com/)\n * The [Apache HTTP Server project](https://httpd.apache.org/)\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install statuses\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar status = require('statuses')\n```\n\n### var code = status(Integer || String)\n\nIf `Integer` or `String` is a valid HTTP code or status message, then the\nappropriate `code` will be returned. Otherwise, an error will be thrown.\n\n<!-- eslint-disable no-undef -->\n\n```js\nstatus(403) // => 403\nstatus('403') // => 403\nstatus('forbidden') // => 403\nstatus('Forbidden') // => 403\nstatus(306) // throws, as it's not supported by node.js\n```\n\n### status.STATUS_CODES\n\nReturns an object which maps status codes to status messages, in\nthe same format as the\n[Node.js http module](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).\n\n### status.codes\n\nReturns an array of all the status codes as `Integer`s.\n\n### var msg = status[code]\n\nMap of `code` to `status message`. `undefined` for invalid `code`s.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus[404] // => 'Not Found'\n```\n\n### var code = status[msg]\n\nMap of `status message` to `code`. `msg` can either be title-cased or\nlower-cased. `undefined` for invalid `status message`s.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus['not found'] // => 404\nstatus['Not Found'] // => 404\n```\n\n### status.redirect[code]\n\nReturns `true` if a status code is a valid redirect status.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.redirect[200] // => undefined\nstatus.redirect[301] // => true\n```\n\n### status.empty[code]\n\nReturns `true` if a status code expects an empty body.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.empty[200] // => undefined\nstatus.empty[204] // => true\nstatus.empty[304] // => true\n```\n\n### status.retry[code]\n\nReturns `true` if you should retry the rest.\n\n<!-- eslint-disable no-undef, no-unused-expressions -->\n\n```js\nstatus.retry[501] // => undefined\nstatus.retry[503] // => true\n```\n\n[npm-image]: https://img.shields.io/npm/v/statuses.svg\n[npm-url]: https://npmjs.org/package/statuses\n[node-version-image]: https://img.shields.io/node/v/statuses.svg\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/jshttp/statuses.svg\n[travis-url]: https://travis-ci.org/jshttp/statuses\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/statuses.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/statuses.svg\n[downloads-url]: https://npmjs.org/package/statuses\n# core-util-is\n\nThe `util.is*` functions introduced in Node v0.12.\n# unpipe\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-image]][node-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nUnpipe a stream from all destinations.\n\n## Installation\n\n```sh\n$ npm install unpipe\n```\n\n## API\n\n```js\nvar unpipe = require('unpipe')\n```\n\n### unpipe(stream)\n\nUnpipes all destinations from a given stream. With stream 2+, this is\nequivalent to `stream.unpipe()`. When used with streams 1 style streams\n(typically Node.js 0.8 and below), this module attempts to undo the\nactions done in `stream.pipe(dest)`.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/unpipe.svg\n[npm-url]: https://npmjs.org/package/unpipe\n[node-image]: https://img.shields.io/node/v/unpipe.svg\n[node-url]: http://nodejs.org/download/\n[travis-image]: https://img.shields.io/travis/stream-utils/unpipe.svg\n[travis-url]: https://travis-ci.org/stream-utils/unpipe\n[coveralls-image]: https://img.shields.io/coveralls/stream-utils/unpipe.svg\n[coveralls-url]: https://coveralls.io/r/stream-utils/unpipe?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/unpipe.svg\n[downloads-url]: https://npmjs.org/package/unpipe\n# send\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Linux Build][travis-image]][travis-url]\n[![Windows Build][appveyor-image]][appveyor-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nSend is a library for streaming files from the file system as a http response\nsupporting partial responses (Ranges), conditional-GET negotiation (If-Match,\nIf-Unmodified-Since, If-None-Match, If-Modified-Since), high test coverage,\nand granular events which may be leveraged to take appropriate actions in your\napplication or framework.\n\nLooking to serve up entire folders mapped to URLs? Try [serve-static](https://www.npmjs.org/package/serve-static).\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```bash\n$ npm install send\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar send = require('send')\n```\n\n### send(req, path, [options])\n\nCreate a new `SendStream` for the given path to send to a `res`. The `req` is\nthe Node.js HTTP request and the `path` is a urlencoded path to send (urlencoded,\nnot the actual file-system path).\n\n#### Options\n\n##### acceptRanges\n\nEnable or disable accepting ranged requests, defaults to true.\nDisabling this will not send `Accept-Ranges` and ignore the contents\nof the `Range` request header.\n\n##### cacheControl\n\nEnable or disable setting `Cache-Control` response header, defaults to\ntrue. Disabling this will ignore the `immutable` and `maxAge` options.\n\n##### dotfiles\n\nSet how \"dotfiles\" are treated when encountered. A dotfile is a file\nor directory that begins with a dot (\".\"). Note this check is done on\nthe path itself without checking if the path actually exists on the\ndisk. If `root` is specified, only the dotfiles above the root are\nchecked (i.e. the root itself can be within a dotfile when when set\nto \"deny\").\n\n - `'allow'` No special treatment for dotfiles.\n - `'deny'` Send a 403 for any request for a dotfile.\n - `'ignore'` Pretend like the dotfile does not exist and 404.\n\nThe default value is _similar_ to `'ignore'`, with the exception that\nthis default will not ignore the files within a directory that begins\nwith a dot, for backward-compatibility.\n\n##### end\n\nByte offset at which the stream ends, defaults to the length of the file\nminus 1. The end is inclusive in the stream, meaning `end: 3` will include\nthe 4th byte in the stream.\n\n##### etag\n\nEnable or disable etag generation, defaults to true.\n\n##### extensions\n\nIf a given file doesn't exist, try appending one of the given extensions,\nin the given order. By default, this is disabled (set to `false`). An\nexample value that will serve extension-less HTML files: `['html', 'htm']`.\nThis is skipped if the requested file already has an extension.\n\n##### immutable\n\nEnable or diable the `immutable` directive in the `Cache-Control` response\nheader, defaults to `false`. If set to `true`, the `maxAge` option should\nalso be specified to enable caching. The `immutable` directive will prevent\nsupported clients from making conditional requests during the life of the\n`maxAge` option to check if the file has changed.\n\n##### index\n\nBy default send supports \"index.html\" files, to disable this\nset `false` or to supply a new index pass a string or an array\nin preferred order.\n\n##### lastModified\n\nEnable or disable `Last-Modified` header, defaults to true. Uses the file\nsystem's last modified value.\n\n##### maxAge\n\nProvide a max-age in milliseconds for http caching, defaults to 0.\nThis can also be a string accepted by the\n[ms](https://www.npmjs.org/package/ms#readme) module.\n\n##### root\n\nServe files relative to `path`.\n\n##### start\n\nByte offset at which the stream starts, defaults to 0. The start is inclusive,\nmeaning `start: 2` will include the 3rd byte in the stream.\n\n#### Events\n\nThe `SendStream` is an event emitter and will emit the following events:\n\n - `error` an error occurred `(err)`\n - `directory` a directory was requested `(res, path)`\n - `file` a file was requested `(path, stat)`\n - `headers` the headers are about to be set on a file `(res, path, stat)`\n - `stream` file streaming has started `(stream)`\n - `end` streaming has completed\n\n#### .pipe\n\nThe `pipe` method is used to pipe the response into the Node.js HTTP response\nobject, typically `send(req, path, options).pipe(res)`.\n\n### .mime\n\nThe `mime` export is the global instance of of the\n[`mime` npm module](https://www.npmjs.com/package/mime).\n\nThis is used to configure the MIME types that are associated with file extensions\nas well as other options for how to resolve the MIME type of a file (like the\ndefault type to use for an unknown file extension).\n\n## Error-handling\n\nBy default when no `error` listeners are present an automatic response will be\nmade, otherwise you have full control over the response, aka you may show a 5xx\npage etc.\n\n## Caching\n\nIt does _not_ perform internal caching, you should use a reverse proxy cache\nsuch as Varnish for this, or those fancy things called CDNs. If your\napplication is small enough that it would benefit from single-node memory\ncaching, it's small enough that it does not need caching at all ;).\n\n## Debugging\n\nTo enable `debug()` instrumentation output export __DEBUG__:\n\n```\n$ DEBUG=send node app\n```\n\n## Running tests\n\n```\n$ npm install\n$ npm test\n```\n\n## Examples\n\n### Small example\n\n```js\nvar http = require('http')\nvar parseUrl = require('parseurl')\nvar send = require('send')\n\nvar server = http.createServer(function onRequest (req, res) {\n send(req, parseUrl(req).pathname).pipe(res)\n})\n\nserver.listen(3000)\n```\n\n### Custom file types\n\n```js\nvar http = require('http')\nvar parseUrl = require('parseurl')\nvar send = require('send')\n\n// Default unknown types to text/plain\nsend.mime.default_type = 'text/plain'\n\n// Add a custom type\nsend.mime.define({\n 'application/x-my-type': ['x-mt', 'x-mtt']\n})\n\nvar server = http.createServer(function onRequest (req, res) {\n send(req, parseUrl(req).pathname).pipe(res)\n})\n\nserver.listen(3000)\n```\n\n### Custom directory index view\n\nThis is a example of serving up a structure of directories with a\ncustom function to render a listing of a directory.\n\n```js\nvar http = require('http')\nvar fs = require('fs')\nvar parseUrl = require('parseurl')\nvar send = require('send')\n\n// Transfer arbitrary files from within /www/example.com/public/*\n// with a custom handler for directory listing\nvar server = http.createServer(function onRequest (req, res) {\n send(req, parseUrl(req).pathname, {index: false, root: '/www/example.com/public'})\n .once('directory', directory)\n .pipe(res)\n})\n\nserver.listen(3000)\n\n// Custom directory handler\nfunction directory (res, path) {\n var stream = this\n\n // redirect to trailing slash for consistent url\n if (!stream.hasTrailingSlash()) {\n return stream.redirect(path)\n }\n\n // get directory list\n fs.readdir(path, function onReaddir (err, list) {\n if (err) return stream.error(err)\n\n // render an index for the directory\n res.setHeader('Content-Type', 'text/plain; charset=UTF-8')\n res.end(list.join('\\n') + '\\n')\n })\n}\n```\n\n### Serving from a root directory with custom error-handling\n\n```js\nvar http = require('http')\nvar parseUrl = require('parseurl')\nvar send = require('send')\n\nvar server = http.createServer(function onRequest (req, res) {\n // your custom error-handling logic:\n function error (err) {\n res.statusCode = err.status || 500\n res.end(err.message)\n }\n\n // your custom headers\n function headers (res, path, stat) {\n // serve all files for download\n res.setHeader('Content-Disposition', 'attachment')\n }\n\n // your custom directory handling logic:\n function redirect () {\n res.statusCode = 301\n res.setHeader('Location', req.url + '/')\n res.end('Redirecting to ' + req.url + '/')\n }\n\n // transfer arbitrary files from within\n // /www/example.com/public/*\n send(req, parseUrl(req).pathname, {root: '/www/example.com/public'})\n .on('error', error)\n .on('directory', redirect)\n .on('headers', headers)\n .pipe(res)\n})\n\nserver.listen(3000)\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/send.svg\n[npm-url]: https://npmjs.org/package/send\n[travis-image]: https://img.shields.io/travis/pillarjs/send/master.svg?label=linux\n[travis-url]: https://travis-ci.org/pillarjs/send\n[appveyor-image]: https://img.shields.io/appveyor/ci/dougwilson/send/master.svg?label=windows\n[appveyor-url]: https://ci.appveyor.com/project/dougwilson/send\n[coveralls-image]: https://img.shields.io/coveralls/pillarjs/send/master.svg\n[coveralls-url]: https://coveralls.io/r/pillarjs/send?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/send.svg\n[downloads-url]: https://npmjs.org/package/send\n# for-in [](https://www.npmjs.com/package/for-in) [](https://npmjs.org/package/for-in) [](https://npmjs.org/package/for-in) [](https://travis-ci.org/jonschlinkert/for-in)\n\n> Iterate over the own and inherited enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save for-in\n```\n\n## Usage\n\n```js\nvar forIn = require('for-in');\n\nvar obj = {a: 'foo', b: 'bar', c: 'baz'};\nvar values = [];\nvar keys = [];\n\nforIn(obj, function (value, key, o) {\n keys.push(key);\n values.push(value);\n});\n\nconsole.log(keys);\n//=> ['a', 'b', 'c'];\n\nconsole.log(values);\n//=> ['foo', 'bar', 'baz'];\n```\n\n## About\n\n### Related projects\n\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten \"Recursively flatten an array or arrays. This is the fastest implementation of array flatten.\")\n* [collection-map](https://www.npmjs.com/package/collection-map): Returns an array of mapped values from an array or object. | [homepage](https://github.com/jonschlinkert/collection-map \"Returns an array of mapped values from an array or object.\")\n* [for-own](https://www.npmjs.com/package/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own) | [homepage](https://github.com/jonschlinkert/for-own \"Iterate over the own enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 16 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [paulirish](https://github.com/paulirish) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 28, 2017._\nrandomfill\n===\n\n[](https://www.npmjs.org/package/randomfill)\n\nrandomfill from node that works in the browser. In node you just get crypto.randomBytes, but in the browser it uses .crypto/msCrypto.getRandomValues\n\n```js\nvar randomFill = require('randomfill');\nvar buf\nrandomFill.randomFillSync(16);//get 16 random bytes\nrandomFill.randomFill(16, function (err, resp) {\n // resp is 16 random bytes\n});\n```\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n<img align=\"right\" alt=\"Ajv logo\" width=\"160\" src=\"http://epoberezkin.github.io/ajv/images/ajv_logo.png\">\n\n# Ajv: Another JSON Schema Validator\n\nThe fastest JSON Schema validator for Node.js and browser. Supports draft-04/06/07.\n\n[](https://travis-ci.org/epoberezkin/ajv)\n[](https://www.npmjs.com/package/ajv)\n[](https://www.npmjs.com/package/ajv)\n[](https://coveralls.io/github/epoberezkin/ajv?branch=master)\n[](https://greenkeeper.io/)\n[](https://gitter.im/ajv-validator/ajv)\n\n### _Ajv and [related repositories](#related-packages) will be transfered to [ajv-validator](https://github.com/ajv-validator) org_\n\n## Using version 6\n\n[JSON Schema draft-07](http://json-schema.org/latest/json-schema-validation.html) is published.\n\n[Ajv version 6.0.0](https://github.com/epoberezkin/ajv/releases/tag/v6.0.0) that supports draft-07 is released. It may require either migrating your schemas or updating your code (to continue using draft-04 and v5 schemas, draft-06 schemas will be supported without changes).\n\n__Please note__: To use Ajv with draft-06 schemas you need to explicitly add the meta-schema to the validator instance:\n\n```javascript\najv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-06.json'));\n```\n\nTo use Ajv with draft-04 schemas in addition to explicitly adding meta-schema you also need to use option schemaId:\n\n```javascript\nvar ajv = new Ajv({schemaId: 'id'});\n// If you want to use both draft-04 and draft-06/07 schemas:\n// var ajv = new Ajv({schemaId: 'auto'});\najv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));\n```\n\n## Contents\n\n- [Performance](#performance)\n- [Features](#features)\n- [Getting started](#getting-started)\n- [Frequently Asked Questions](https://github.com/epoberezkin/ajv/blob/master/FAQ.md)\n- [Using in browser](#using-in-browser)\n- [Command line interface](#command-line-interface)\n- Validation\n - [Keywords](#validation-keywords)\n - [Annotation keywords](#annotation-keywords)\n - [Formats](#formats)\n - [Combining schemas with $ref](#ref)\n - [$data reference](#data-reference)\n - NEW: [$merge and $patch keywords](#merge-and-patch-keywords)\n - [Defining custom keywords](#defining-custom-keywords)\n - [Asynchronous schema compilation](#asynchronous-schema-compilation)\n - [Asynchronous validation](#asynchronous-validation)\n - [Security considerations](#security-considerations)\n- Modifying data during validation\n - [Filtering data](#filtering-data)\n - [Assigning defaults](#assigning-defaults)\n - [Coercing data types](#coercing-data-types)\n- API\n - [Methods](#api)\n - [Options](#options)\n - [Validation errors](#validation-errors)\n- [Plugins](#plugins)\n- [Related packages](#related-packages)\n- [Some packages using Ajv](#some-packages-using-ajv)\n- [Tests, Contributing, History, License](#tests)\n\n## Performance\n\nAjv generates code using [doT templates](https://github.com/olado/doT) to turn JSON Schemas into super-fast validation functions that are efficient for v8 optimization.\n\nCurrently Ajv is the fastest and the most standard compliant validator according to these benchmarks:\n\n- [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark) - 50% faster than the second place\n- [jsck benchmark](https://github.com/pandastrike/jsck#benchmarks) - 20-190% faster\n- [z-schema benchmark](https://rawgit.com/zaggino/z-schema/master/benchmark/results.html)\n- [themis benchmark](https://cdn.rawgit.com/playlyfe/themis/master/benchmark/results.html)\n\nPerformance of different validators by [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark):\n\n[](https://github.com/ebdrup/json-schema-benchmark/blob/master/README.md#performance)\n\n## Features\n\n- Ajv implements full JSON Schema [draft-06/07](http://json-schema.org/) and draft-04 standards:\n - all validation keywords (see [JSON Schema validation keywords](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md))\n - full support of remote refs (remote schemas have to be added with `addSchema` or compiled to be available)\n - support of circular references between schemas\n - correct string lengths for strings with unicode pairs (can be turned off)\n - [formats](#formats) defined by JSON Schema draft-07 standard and custom formats (can be turned off)\n - [validates schemas against meta-schema](#api-validateschema)\n- supports [browsers](#using-in-browser) and Node.js 0.10-8.x\n- [asynchronous loading](#asynchronous-schema-compilation) of referenced schemas during compilation\n- \"All errors\" validation mode with [option allErrors](#options)\n- [error messages with parameters](#validation-errors) describing error reasons to allow creating custom error messages\n- i18n error messages support with [ajv-i18n](https://github.com/epoberezkin/ajv-i18n) package\n- [filtering data](#filtering-data) from additional properties\n- [assigning defaults](#assigning-defaults) to missing properties and items\n- [coercing data](#coercing-data-types) to the types specified in `type` keywords\n- [custom keywords](#defining-custom-keywords)\n- draft-06/07 keywords `const`, `contains`, `propertyNames` and `if/then/else`\n- draft-06 boolean schemas (`true`/`false` as a schema to always pass/fail).\n- keywords `switch`, `patternRequired`, `formatMaximum` / `formatMinimum` and `formatExclusiveMaximum` / `formatExclusiveMinimum` from [JSON Schema extension proposals](https://github.com/json-schema/json-schema/wiki/v5-Proposals) with [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package\n- [$data reference](#data-reference) to use values from the validated data as values for the schema keywords\n- [asynchronous validation](#asynchronous-validation) of custom formats and keywords\n\nCurrently Ajv is the only validator that passes all the tests from [JSON Schema Test Suite](https://github.com/json-schema/JSON-Schema-Test-Suite) (according to [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark), apart from the test that requires that `1.0` is not an integer that is impossible to satisfy in JavaScript).\n\n## Install\n\n```\nnpm install ajv\n```\n\n## <a name=\"usage\"></a>Getting started\n\nTry it in the Node.js REPL: https://tonicdev.com/npm/ajv\n\nThe fastest validation call:\n\n```javascript\nvar Ajv = require('ajv');\nvar ajv = new Ajv(); // options can be passed, e.g. {allErrors: true}\nvar validate = ajv.compile(schema);\nvar valid = validate(data);\nif (!valid) console.log(validate.errors);\n```\n\nor with less code\n\n```javascript\n// ...\nvar valid = ajv.validate(schema, data);\nif (!valid) console.log(ajv.errors);\n// ...\n```\n\nor\n\n```javascript\n// ...\nvar valid = ajv.addSchema(schema, 'mySchema')\n .validate('mySchema', data);\nif (!valid) console.log(ajv.errorsText());\n// ...\n```\n\nSee [API](#api) and [Options](#options) for more details.\n\nAjv compiles schemas to functions and caches them in all cases (using schema serialized with [fast-json-stable-stringify](https://github.com/epoberezkin/fast-json-stable-stringify) or a custom function as a key), so that the next time the same schema is used (not necessarily the same object instance) it won't be compiled again.\n\nThe best performance is achieved when using compiled functions returned by `compile` or `getSchema` methods (there is no additional function call).\n\n__Please note__: every time a validation function or `ajv.validate` are called `errors` property is overwritten. You need to copy `errors` array reference to another variable if you want to use it later (e.g., in the callback). See [Validation errors](#validation-errors)\n\n## Using in browser\n\nYou can require Ajv directly from the code you browserify - in this case Ajv will be a part of your bundle.\n\nIf you need to use Ajv in several bundles you can create a separate UMD bundle using `npm run bundle` script (thanks to [siddo420](https://github.com/siddo420)).\n\nThen you need to load Ajv in the browser:\n```html\n<script src=\"ajv.min.js\"></script>\n```\n\nThis bundle can be used with different module systems; it creates global `Ajv` if no module system is found.\n\nThe browser bundle is available on [cdnjs](https://cdnjs.com/libraries/ajv).\n\nAjv is tested with these browsers:\n\n[](https://saucelabs.com/u/epoberezkin)\n\n__Please note__: some frameworks, e.g. Dojo, may redefine global require in such way that is not compatible with CommonJS module format. In such case Ajv bundle has to be loaded before the framework and then you can use global Ajv (see issue [#234](https://github.com/epoberezkin/ajv/issues/234)).\n\n## Command line interface\n\nCLI is available as a separate npm package [ajv-cli](https://github.com/jessedc/ajv-cli). It supports:\n\n- compiling JSON Schemas to test their validity\n- BETA: generating standalone module exporting a validation function to be used without Ajv (using [ajv-pack](https://github.com/epoberezkin/ajv-pack))\n- migrate schemas to draft-07 (using [json-schema-migrate](https://github.com/epoberezkin/json-schema-migrate))\n- validating data file(s) against JSON Schema\n- testing expected validity of data against JSON Schema\n- referenced schemas\n- custom meta-schemas\n- files in JSON and JavaScript format\n- all Ajv options\n- reporting changes in data after validation in [JSON-patch](https://tools.ietf.org/html/rfc6902) format\n\n## Validation keywords\n\nAjv supports all validation keywords from draft-07 of JSON Schema standard:\n\n- [type](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#type)\n- [for numbers](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#keywords-for-numbers) - maximum, minimum, exclusiveMaximum, exclusiveMinimum, multipleOf\n- [for strings](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#keywords-for-strings) - maxLength, minLength, pattern, format\n- [for arrays](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#keywords-for-arrays) - maxItems, minItems, uniqueItems, items, additionalItems, [contains](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#contains)\n- [for objects](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#keywords-for-objects) - maxProperties, minProperties, required, properties, patternProperties, additionalProperties, dependencies, [propertyNames](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#propertynames)\n- [for all types](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#keywords-for-all-types) - enum, [const](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#const)\n- [compound keywords](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#compound-keywords) - not, oneOf, anyOf, allOf, [if/then/else](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#ifthenelse)\n\nWith [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package Ajv also supports validation keywords from [JSON Schema extension proposals](https://github.com/json-schema/json-schema/wiki/v5-Proposals) for JSON Schema standard:\n\n- [patternRequired](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#patternrequired-proposed) - like `required` but with patterns that some property should match.\n- [formatMaximum, formatMinimum, formatExclusiveMaximum, formatExclusiveMinimum](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#formatmaximum--formatminimum-and-exclusiveformatmaximum--exclusiveformatminimum-proposed) - setting limits for date, time, etc.\n\nSee [JSON Schema validation keywords](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md) for more details.\n\n## Annotation keywords\n\nJSON Schema specification defines several annotation keywords that describe schema itself but do not perform any validation.\n\n- `title` and `description`: information about the data represented by that schema\n- `$comment` (NEW in draft-07): information for developers. With option `$comment` Ajv logs or passes the comment string to the user-supplied function. See [Options](#options).\n- `default`: a default value of the data instance, see [Assigning defaults](#assigning-defaults).\n- `examples` (NEW in draft-07): an array of data instances. Ajv does not check the validity of these instances against the schema.\n- `readOnly` and `writeOnly` (NEW in draft-07): marks data-instance as read-only or write-only in relation to the source of the data (database, api, etc.).\n- `contentEncoding`: [RFC 2045](https://tools.ietf.org/html/rfc2045#section-6.1 ), e.g., \"base64\".\n- `contentMediaType`: [RFC 2046](https://tools.ietf.org/html/rfc2046), e.g., \"image/png\".\n\n__Please note__: Ajv does not implement validation of the keywords `examples`, `contentEncoding` and `contentMediaType` but it reserves them. If you want to create a plugin that implements some of them, it should remove these keywords from the instance.\n\n## Formats\n\nThe following formats are supported for string validation with \"format\" keyword:\n\n- _date_: full-date according to [RFC3339](http://tools.ietf.org/html/rfc3339#section-5.6).\n- _time_: time with optional time-zone.\n- _date-time_: date-time from the same source (time-zone is mandatory). `date`, `time` and `date-time` validate ranges in `full` mode and only regexp in `fast` mode (see [options](#options)).\n- _uri_: full URI.\n- _uri-reference_: URI reference, including full and relative URIs.\n- _uri-template_: URI template according to [RFC6570](https://tools.ietf.org/html/rfc6570)\n- _url_ (deprecated): [URL record](https://url.spec.whatwg.org/#concept-url).\n- _email_: email address.\n- _hostname_: host name according to [RFC1034](http://tools.ietf.org/html/rfc1034#section-3.5).\n- _ipv4_: IP address v4.\n- _ipv6_: IP address v6.\n- _regex_: tests whether a string is a valid regular expression by passing it to RegExp constructor.\n- _uuid_: Universally Unique IDentifier according to [RFC4122](http://tools.ietf.org/html/rfc4122).\n- _json-pointer_: JSON-pointer according to [RFC6901](https://tools.ietf.org/html/rfc6901).\n- _relative-json-pointer_: relative JSON-pointer according to [this draft](http://tools.ietf.org/html/draft-luff-relative-json-pointer-00).\n\n__Please note__: JSON Schema draft-07 also defines formats `iri`, `iri-reference`, `idn-hostname` and `idn-email` for URLs, hostnames and emails with international characters. Ajv does not implement these formats. If you create Ajv plugin that implements them please make a PR to mention this plugin here.\n\nThere are two modes of format validation: `fast` and `full`. This mode affects formats `date`, `time`, `date-time`, `uri`, `uri-reference`, `email`, and `hostname`. See [Options](#options) for details.\n\nYou can add additional formats and replace any of the formats above using [addFormat](#api-addformat) method.\n\nThe option `unknownFormats` allows changing the default behaviour when an unknown format is encountered. In this case Ajv can either fail schema compilation (default) or ignore it (default in versions before 5.0.0). You also can whitelist specific format(s) to be ignored. See [Options](#options) for details.\n\nYou can find regular expressions used for format validation and the sources that were used in [formats.js](https://github.com/epoberezkin/ajv/blob/master/lib/compile/formats.js).\n\n## <a name=\"ref\"></a>Combining schemas with $ref\n\nYou can structure your validation logic across multiple schema files and have schemas reference each other using `$ref` keyword.\n\nExample:\n\n```javascript\nvar schema = {\n \"$id\": \"http://example.com/schemas/schema.json\",\n \"type\": \"object\",\n \"properties\": {\n \"foo\": { \"$ref\": \"defs.json#/definitions/int\" },\n \"bar\": { \"$ref\": \"defs.json#/definitions/str\" }\n }\n};\n\nvar defsSchema = {\n \"$id\": \"http://example.com/schemas/defs.json\",\n \"definitions\": {\n \"int\": { \"type\": \"integer\" },\n \"str\": { \"type\": \"string\" }\n }\n};\n```\n\nNow to compile your schema you can either pass all schemas to Ajv instance:\n\n```javascript\nvar ajv = new Ajv({schemas: [schema, defsSchema]});\nvar validate = ajv.getSchema('http://example.com/schemas/schema.json');\n```\n\nor use `addSchema` method:\n\n```javascript\nvar ajv = new Ajv;\nvar validate = ajv.addSchema(defsSchema)\n .compile(schema);\n```\n\nSee [Options](#options) and [addSchema](#api) method.\n\n__Please note__:\n- `$ref` is resolved as the uri-reference using schema $id as the base URI (see the example).\n- References can be recursive (and mutually recursive) to implement the schemas for different data structures (such as linked lists, trees, graphs, etc.).\n- You don't have to host your schema files at the URIs that you use as schema $id. These URIs are only used to identify the schemas, and according to JSON Schema specification validators should not expect to be able to download the schemas from these URIs.\n- The actual location of the schema file in the file system is not used.\n- You can pass the identifier of the schema as the second parameter of `addSchema` method or as a property name in `schemas` option. This identifier can be used instead of (or in addition to) schema $id.\n- You cannot have the same $id (or the schema identifier) used for more than one schema - the exception will be thrown.\n- You can implement dynamic resolution of the referenced schemas using `compileAsync` method. In this way you can store schemas in any system (files, web, database, etc.) and reference them without explicitly adding to Ajv instance. See [Asynchronous schema compilation](#asynchronous-schema-compilation).\n\n## $data reference\n\nWith `$data` option you can use values from the validated data as the values for the schema keywords. See [proposal](https://github.com/json-schema/json-schema/wiki/$data-(v5-proposal)) for more information about how it works.\n\n`$data` reference is supported in the keywords: const, enum, format, maximum/minimum, exclusiveMaximum / exclusiveMinimum, maxLength / minLength, maxItems / minItems, maxProperties / minProperties, formatMaximum / formatMinimum, formatExclusiveMaximum / formatExclusiveMinimum, multipleOf, pattern, required, uniqueItems.\n\nThe value of \"$data\" should be a [JSON-pointer](https://tools.ietf.org/html/rfc6901) to the data (the root is always the top level data object, even if the $data reference is inside a referenced subschema) or a [relative JSON-pointer](http://tools.ietf.org/html/draft-luff-relative-json-pointer-00) (it is relative to the current point in data; if the $data reference is inside a referenced subschema it cannot point to the data outside of the root level for this subschema).\n\nExamples.\n\nThis schema requires that the value in property `smaller` is less or equal than the value in the property larger:\n\n```javascript\nvar ajv = new Ajv({$data: true});\n\nvar schema = {\n \"properties\": {\n \"smaller\": {\n \"type\": \"number\",\n \"maximum\": { \"$data\": \"1/larger\" }\n },\n \"larger\": { \"type\": \"number\" }\n }\n};\n\nvar validData = {\n smaller: 5,\n larger: 7\n};\n\najv.validate(schema, validData); // true\n```\n\nThis schema requires that the properties have the same format as their field names:\n\n```javascript\nvar schema = {\n \"additionalProperties\": {\n \"type\": \"string\",\n \"format\": { \"$data\": \"0#\" }\n }\n};\n\nvar validData = {\n 'date-time': '1963-06-19T08:30:06.283185Z',\n email: 'joe.bloggs@example.com'\n}\n```\n\n`$data` reference is resolved safely - it won't throw even if some property is undefined. If `$data` resolves to `undefined` the validation succeeds (with the exclusion of `const` keyword). If `$data` resolves to incorrect type (e.g. not \"number\" for maximum keyword) the validation fails.\n\n## $merge and $patch keywords\n\nWith the package [ajv-merge-patch](https://github.com/epoberezkin/ajv-merge-patch) you can use the keywords `$merge` and `$patch` that allow extending JSON Schemas with patches using formats [JSON Merge Patch (RFC 7396)](https://tools.ietf.org/html/rfc7396) and [JSON Patch (RFC 6902)](https://tools.ietf.org/html/rfc6902).\n\nTo add keywords `$merge` and `$patch` to Ajv instance use this code:\n\n```javascript\nrequire('ajv-merge-patch')(ajv);\n```\n\nExamples.\n\nUsing `$merge`:\n\n```json\n{\n \"$merge\": {\n \"source\": {\n \"type\": \"object\",\n \"properties\": { \"p\": { \"type\": \"string\" } },\n \"additionalProperties\": false\n },\n \"with\": {\n \"properties\": { \"q\": { \"type\": \"number\" } }\n }\n }\n}\n```\n\nUsing `$patch`:\n\n```json\n{\n \"$patch\": {\n \"source\": {\n \"type\": \"object\",\n \"properties\": { \"p\": { \"type\": \"string\" } },\n \"additionalProperties\": false\n },\n \"with\": [\n { \"op\": \"add\", \"path\": \"/properties/q\", \"value\": { \"type\": \"number\" } }\n ]\n }\n}\n```\n\nThe schemas above are equivalent to this schema:\n\n```json\n{\n \"type\": \"object\",\n \"properties\": {\n \"p\": { \"type\": \"string\" },\n \"q\": { \"type\": \"number\" }\n },\n \"additionalProperties\": false\n}\n```\n\nThe properties `source` and `with` in the keywords `$merge` and `$patch` can use absolute or relative `$ref` to point to other schemas previously added to the Ajv instance or to the fragments of the current schema.\n\nSee the package [ajv-merge-patch](https://github.com/epoberezkin/ajv-merge-patch) for more information.\n\n## Defining custom keywords\n\nThe advantages of using custom keywords are:\n\n- allow creating validation scenarios that cannot be expressed using JSON Schema\n- simplify your schemas\n- help bringing a bigger part of the validation logic to your schemas\n- make your schemas more expressive, less verbose and closer to your application domain\n- implement custom data processors that modify your data (`modifying` option MUST be used in keyword definition) and/or create side effects while the data is being validated\n\nIf a keyword is used only for side-effects and its validation result is pre-defined, use option `valid: true/false` in keyword definition to simplify both generated code (no error handling in case of `valid: true`) and your keyword functions (no need to return any validation result).\n\nThe concerns you have to be aware of when extending JSON Schema standard with custom keywords are the portability and understanding of your schemas. You will have to support these custom keywords on other platforms and to properly document these keywords so that everybody can understand them in your schemas.\n\nYou can define custom keywords with [addKeyword](#api-addkeyword) method. Keywords are defined on the `ajv` instance level - new instances will not have previously defined keywords.\n\nAjv allows defining keywords with:\n- validation function\n- compilation function\n- macro function\n- inline compilation function that should return code (as string) that will be inlined in the currently compiled schema.\n\nExample. `range` and `exclusiveRange` keywords using compiled schema:\n\n```javascript\najv.addKeyword('range', {\n type: 'number',\n compile: function (sch, parentSchema) {\n var min = sch[0];\n var max = sch[1];\n\n return parentSchema.exclusiveRange === true\n ? function (data) { return data > min && data < max; }\n : function (data) { return data >= min && data <= max; }\n }\n});\n\nvar schema = { \"range\": [2, 4], \"exclusiveRange\": true };\nvar validate = ajv.compile(schema);\nconsole.log(validate(2.01)); // true\nconsole.log(validate(3.99)); // true\nconsole.log(validate(2)); // false\nconsole.log(validate(4)); // false\n```\n\nSeveral custom keywords (typeof, instanceof, range and propertyNames) are defined in [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package - they can be used for your schemas and as a starting point for your own custom keywords.\n\nSee [Defining custom keywords](https://github.com/epoberezkin/ajv/blob/master/CUSTOM.md) for more details.\n\n## Asynchronous schema compilation\n\nDuring asynchronous compilation remote references are loaded using supplied function. See `compileAsync` [method](#api-compileAsync) and `loadSchema` [option](#options).\n\nExample:\n\n```javascript\nvar ajv = new Ajv({ loadSchema: loadSchema });\n\najv.compileAsync(schema).then(function (validate) {\n var valid = validate(data);\n // ...\n});\n\nfunction loadSchema(uri) {\n return request.json(uri).then(function (res) {\n if (res.statusCode >= 400)\n throw new Error('Loading error: ' + res.statusCode);\n return res.body;\n });\n}\n```\n\n__Please note__: [Option](#options) `missingRefs` should NOT be set to `\"ignore\"` or `\"fail\"` for asynchronous compilation to work.\n\n## Asynchronous validation\n\nExample in Node.js REPL: https://tonicdev.com/esp/ajv-asynchronous-validation\n\nYou can define custom formats and keywords that perform validation asynchronously by accessing database or some other service. You should add `async: true` in the keyword or format definition (see [addFormat](#api-addformat), [addKeyword](#api-addkeyword) and [Defining custom keywords](#defining-custom-keywords)).\n\nIf your schema uses asynchronous formats/keywords or refers to some schema that contains them it should have `\"$async\": true` keyword so that Ajv can compile it correctly. If asynchronous format/keyword or reference to asynchronous schema is used in the schema without `$async` keyword Ajv will throw an exception during schema compilation.\n\n__Please note__: all asynchronous subschemas that are referenced from the current or other schemas should have `\"$async\": true` keyword as well, otherwise the schema compilation will fail.\n\nValidation function for an asynchronous custom format/keyword should return a promise that resolves with `true` or `false` (or rejects with `new Ajv.ValidationError(errors)` if you want to return custom errors from the keyword function).\n\nAjv compiles asynchronous schemas to [es7 async functions](http://tc39.github.io/ecmascript-asyncawait/) that can optionally be transpiled with [nodent](https://github.com/MatAtBread/nodent). Async functions are supported in Node.js 7+ and all modern browsers. You can also supply any other transpiler as a function via `processCode` option. See [Options](#options).\n\nThe compiled validation function has `$async: true` property (if the schema is asynchronous), so you can differentiate these functions if you are using both synchronous and asynchronous schemas.\n\nValidation result will be a promise that resolves with validated data or rejects with an exception `Ajv.ValidationError` that contains the array of validation errors in `errors` property.\n\nExample:\n\n```javascript\nvar ajv = new Ajv;\n// require('ajv-async')(ajv);\n\najv.addKeyword('idExists', {\n async: true,\n type: 'number',\n validate: checkIdExists\n});\n\nfunction checkIdExists(schema, data) {\n return knex(schema.table)\n .select('id')\n .where('id', data)\n .then(function (rows) {\n return !!rows.length; // true if record is found\n });\n}\n\nvar schema = {\n \"$async\": true,\n \"properties\": {\n \"userId\": {\n \"type\": \"integer\",\n \"idExists\": { \"table\": \"users\" }\n },\n \"postId\": {\n \"type\": \"integer\",\n \"idExists\": { \"table\": \"posts\" }\n }\n }\n};\n\nvar validate = ajv.compile(schema);\n\nvalidate({ userId: 1, postId: 19 })\n.then(function (data) {\n console.log('Data is valid', data); // { userId: 1, postId: 19 }\n})\n.catch(function (err) {\n if (!(err instanceof Ajv.ValidationError)) throw err;\n // data is invalid\n console.log('Validation errors:', err.errors);\n});\n```\n\n### Using transpilers with asynchronous validation functions.\n\n[ajv-async](https://github.com/epoberezkin/ajv-async) uses [nodent](https://github.com/MatAtBread/nodent) to transpile async functions. To use another transpiler you should separately install it (or load its bundle in the browser).\n\n#### Using nodent\n\n```javascript\nvar ajv = new Ajv;\nrequire('ajv-async')(ajv);\n// in the browser if you want to load ajv-async bundle separately you can:\n// window.ajvAsync(ajv);\nvar validate = ajv.compile(schema); // transpiled es7 async function\nvalidate(data).then(successFunc).catch(errorFunc);\n```\n\n#### Using other transpilers\n\n```javascript\nvar ajv = new Ajv({ processCode: transpileFunc });\nvar validate = ajv.compile(schema); // transpiled es7 async function\nvalidate(data).then(successFunc).catch(errorFunc);\n```\n\nSee [Options](#options).\n\n## Security considerations\n\nJSON Schema, if properly used, can replace data sanitisation. It doesn't replace other API security considerations. It also introduces additional security aspects to consider.\n\n##### Untrusted schemas\n\nAjv treats JSON schemas as trusted as your application code. This security model is based on the most common use case, when the schemas are static and bundled together with the application.\n\nIf your schemas are received from untrusted sources (or generated from untrusted data) there are several scenarios you need to prevent:\n- compiling schemas can cause stack overflow (if they are too deep)\n- compiling schemas can be slow (e.g. [#557](https://github.com/epoberezkin/ajv/issues/557))\n- validating certain data can be slow\n\nIt is difficult to predict all the scenarios, but at the very least it may help to limit the size of untrusted schemas (e.g. limit JSON string length) and also the maximum schema object depth (that can be high for relatively small JSON strings). You also may want to mitigate slow regular expressions in `pattern` and `patternProperties` keywords.\n\nRegardless the measures you take, using untrusted schemas increases security risks.\n\n##### Circular references in JavaScript objects\n\nAjv does not support schemas and validated data that have circular references in objects. See [issue #802](https://github.com/epoberezkin/ajv/issues/802).\n\nAn attempt to compile such schemas or validate such data would cause stack overflow (or will not complete in case of asynchronous validation). Depending on the parser you use, untrusted data can lead to circular references.\n\n##### Security risks of trusted schemas\n\nSome keywords in JSON Schemas can lead to very slow validation for certain data. These keywords include (but may be not limited to):\n\n- `pattern` and `format` for large strings - use `maxLength` to mitigate\n- `uniqueItems` for large non-scalar arrays - use `maxItems` to mitigate\n- `patternProperties` for large property names - use `propertyNames` to mitigate\n\n__Please note__: The suggestions above to prevent slow validation would only work if you do NOT use `allErrors: true` in production code (using it would continue validation after validation errors).\n\nYou can validate your JSON schemas against [this meta-schema](https://github.com/epoberezkin/ajv/blob/master/lib/refs/json-schema-secure.json) to check that these recommendations are followed:\n\n```javascript\nconst isSchemaSecure = ajv.compile(require('ajv/lib/refs/json-schema-secure.json'));\n\nconst schema1 = {format: 'email'};\nisSchemaSecure(schema1); // false\n\nconst schema2 = {format: 'email', maxLength: 256};\nisSchemaSecure(schema2); // true\n```\n\n__Please note__: following all these recommendation is not a guarantee that validation of untrusted data is safe - it can still lead to some undesirable results.\n\n## Filtering data\n\nWith [option `removeAdditional`](#options) (added by [andyscott](https://github.com/andyscott)) you can filter data during the validation.\n\nThis option modifies original data.\n\nExample:\n\n```javascript\nvar ajv = new Ajv({ removeAdditional: true });\nvar schema = {\n \"additionalProperties\": false,\n \"properties\": {\n \"foo\": { \"type\": \"number\" },\n \"bar\": {\n \"additionalProperties\": { \"type\": \"number\" },\n \"properties\": {\n \"baz\": { \"type\": \"string\" }\n }\n }\n }\n}\n\nvar data = {\n \"foo\": 0,\n \"additional1\": 1, // will be removed; `additionalProperties` == false\n \"bar\": {\n \"baz\": \"abc\",\n \"additional2\": 2 // will NOT be removed; `additionalProperties` != false\n },\n}\n\nvar validate = ajv.compile(schema);\n\nconsole.log(validate(data)); // true\nconsole.log(data); // { \"foo\": 0, \"bar\": { \"baz\": \"abc\", \"additional2\": 2 }\n```\n\nIf `removeAdditional` option in the example above were `\"all\"` then both `additional1` and `additional2` properties would have been removed.\n\nIf the option were `\"failing\"` then property `additional1` would have been removed regardless of its value and property `additional2` would have been removed only if its value were failing the schema in the inner `additionalProperties` (so in the example above it would have stayed because it passes the schema, but any non-number would have been removed).\n\n__Please note__: If you use `removeAdditional` option with `additionalProperties` keyword inside `anyOf`/`oneOf` keywords your validation can fail with this schema, for example:\n\n```json\n{\n \"type\": \"object\",\n \"oneOf\": [\n {\n \"properties\": {\n \"foo\": { \"type\": \"string\" }\n },\n \"required\": [ \"foo\" ],\n \"additionalProperties\": false\n },\n {\n \"properties\": {\n \"bar\": { \"type\": \"integer\" }\n },\n \"required\": [ \"bar\" ],\n \"additionalProperties\": false\n }\n ]\n}\n```\n\nThe intention of the schema above is to allow objects with either the string property \"foo\" or the integer property \"bar\", but not with both and not with any other properties.\n\nWith the option `removeAdditional: true` the validation will pass for the object `{ \"foo\": \"abc\"}` but will fail for the object `{\"bar\": 1}`. It happens because while the first subschema in `oneOf` is validated, the property `bar` is removed because it is an additional property according to the standard (because it is not included in `properties` keyword in the same schema).\n\nWhile this behaviour is unexpected (issues [#129](https://github.com/epoberezkin/ajv/issues/129), [#134](https://github.com/epoberezkin/ajv/issues/134)), it is correct. To have the expected behaviour (both objects are allowed and additional properties are removed) the schema has to be refactored in this way:\n\n```json\n{\n \"type\": \"object\",\n \"properties\": {\n \"foo\": { \"type\": \"string\" },\n \"bar\": { \"type\": \"integer\" }\n },\n \"additionalProperties\": false,\n \"oneOf\": [\n { \"required\": [ \"foo\" ] },\n { \"required\": [ \"bar\" ] }\n ]\n}\n```\n\nThe schema above is also more efficient - it will compile into a faster function.\n\n## Assigning defaults\n\nWith [option `useDefaults`](#options) Ajv will assign values from `default` keyword in the schemas of `properties` and `items` (when it is the array of schemas) to the missing properties and items.\n\nWith the option value `\"empty\"` properties and items equal to `null` or `\"\"` (empty string) will be considered missing and assigned defaults.\n\nThis option modifies original data.\n\n__Please note__: the default value is inserted in the generated validation code as a literal, so the value inserted in the data will be the deep clone of the default in the schema.\n\nExample 1 (`default` in `properties`):\n\n```javascript\nvar ajv = new Ajv({ useDefaults: true });\nvar schema = {\n \"type\": \"object\",\n \"properties\": {\n \"foo\": { \"type\": \"number\" },\n \"bar\": { \"type\": \"string\", \"default\": \"baz\" }\n },\n \"required\": [ \"foo\", \"bar\" ]\n};\n\nvar data = { \"foo\": 1 };\n\nvar validate = ajv.compile(schema);\n\nconsole.log(validate(data)); // true\nconsole.log(data); // { \"foo\": 1, \"bar\": \"baz\" }\n```\n\nExample 2 (`default` in `items`):\n\n```javascript\nvar schema = {\n \"type\": \"array\",\n \"items\": [\n { \"type\": \"number\" },\n { \"type\": \"string\", \"default\": \"foo\" }\n ]\n}\n\nvar data = [ 1 ];\n\nvar validate = ajv.compile(schema);\n\nconsole.log(validate(data)); // true\nconsole.log(data); // [ 1, \"foo\" ]\n```\n\n`default` keywords in other cases are ignored:\n\n- not in `properties` or `items` subschemas\n- in schemas inside `anyOf`, `oneOf` and `not` (see [#42](https://github.com/epoberezkin/ajv/issues/42))\n- in `if` subschema of `switch` keyword\n- in schemas generated by custom macro keywords\n\nThe [`strictDefaults` option](#options) customizes Ajv's behavior for the defaults that Ajv ignores (`true` raises an error, and `\"log\"` outputs a warning).\n\n## Coercing data types\n\nWhen you are validating user inputs all your data properties are usually strings. The option `coerceTypes` allows you to have your data types coerced to the types specified in your schema `type` keywords, both to pass the validation and to use the correctly typed data afterwards.\n\nThis option modifies original data.\n\n__Please note__: if you pass a scalar value to the validating function its type will be coerced and it will pass the validation, but the value of the variable you pass won't be updated because scalars are passed by value.\n\nExample 1:\n\n```javascript\nvar ajv = new Ajv({ coerceTypes: true });\nvar schema = {\n \"type\": \"object\",\n \"properties\": {\n \"foo\": { \"type\": \"number\" },\n \"bar\": { \"type\": \"boolean\" }\n },\n \"required\": [ \"foo\", \"bar\" ]\n};\n\nvar data = { \"foo\": \"1\", \"bar\": \"false\" };\n\nvar validate = ajv.compile(schema);\n\nconsole.log(validate(data)); // true\nconsole.log(data); // { \"foo\": 1, \"bar\": false }\n```\n\nExample 2 (array coercions):\n\n```javascript\nvar ajv = new Ajv({ coerceTypes: 'array' });\nvar schema = {\n \"properties\": {\n \"foo\": { \"type\": \"array\", \"items\": { \"type\": \"number\" } },\n \"bar\": { \"type\": \"boolean\" }\n }\n};\n\nvar data = { \"foo\": \"1\", \"bar\": [\"false\"] };\n\nvar validate = ajv.compile(schema);\n\nconsole.log(validate(data)); // true\nconsole.log(data); // { \"foo\": [1], \"bar\": false }\n```\n\nThe coercion rules, as you can see from the example, are different from JavaScript both to validate user input as expected and to have the coercion reversible (to correctly validate cases where different types are defined in subschemas of \"anyOf\" and other compound keywords).\n\nSee [Coercion rules](https://github.com/epoberezkin/ajv/blob/master/COERCION.md) for details.\n\n## API\n\n##### new Ajv(Object options) -> Object\n\nCreate Ajv instance.\n\n##### .compile(Object schema) -> Function<Object data>\n\nGenerate validating function and cache the compiled schema for future use.\n\nValidating function returns a boolean value. This function has properties `errors` and `schema`. Errors encountered during the last validation are assigned to `errors` property (it is assigned `null` if there was no errors). `schema` property contains the reference to the original schema.\n\nThe schema passed to this method will be validated against meta-schema unless `validateSchema` option is false. If schema is invalid, an error will be thrown. See [options](#options).\n\n##### <a name=\"api-compileAsync\"></a>.compileAsync(Object schema [, Boolean meta] [, Function callback]) -> Promise\n\nAsynchronous version of `compile` method that loads missing remote schemas using asynchronous function in `options.loadSchema`. This function returns a Promise that resolves to a validation function. An optional callback passed to `compileAsync` will be called with 2 parameters: error (or null) and validating function. The returned promise will reject (and the callback will be called with an error) when:\n\n- missing schema can't be loaded (`loadSchema` returns a Promise that rejects).\n- a schema containing a missing reference is loaded, but the reference cannot be resolved.\n- schema (or some loaded/referenced schema) is invalid.\n\nThe function compiles schema and loads the first missing schema (or meta-schema) until all missing schemas are loaded.\n\nYou can asynchronously compile meta-schema by passing `true` as the second parameter.\n\nSee example in [Asynchronous compilation](#asynchronous-schema-compilation).\n\n##### .validate(Object schema|String key|String ref, data) -> Boolean\n\nValidate data using passed schema (it will be compiled and cached).\n\nInstead of the schema you can use the key that was previously passed to `addSchema`, the schema id if it was present in the schema or any previously resolved reference.\n\nValidation errors will be available in the `errors` property of Ajv instance (`null` if there were no errors).\n\n__Please note__: every time this method is called the errors are overwritten so you need to copy them to another variable if you want to use them later.\n\nIf the schema is asynchronous (has `$async` keyword on the top level) this method returns a Promise. See [Asynchronous validation](#asynchronous-validation).\n\n##### .addSchema(Array<Object>|Object schema [, String key]) -> Ajv\n\nAdd schema(s) to validator instance. This method does not compile schemas (but it still validates them). Because of that dependencies can be added in any order and circular dependencies are supported. It also prevents unnecessary compilation of schemas that are containers for other schemas but not used as a whole.\n\nArray of schemas can be passed (schemas should have ids), the second parameter will be ignored.\n\nKey can be passed that can be used to reference the schema and will be used as the schema id if there is no id inside the schema. If the key is not passed, the schema id will be used as the key.\n\nOnce the schema is added, it (and all the references inside it) can be referenced in other schemas and used to validate data.\n\nAlthough `addSchema` does not compile schemas, explicit compilation is not required - the schema will be compiled when it is used first time.\n\nBy default the schema is validated against meta-schema before it is added, and if the schema does not pass validation the exception is thrown. This behaviour is controlled by `validateSchema` option.\n\n__Please note__: Ajv uses the [method chaining syntax](https://en.wikipedia.org/wiki/Method_chaining) for all methods with the prefix `add*` and `remove*`.\nThis allows you to do nice things like the following.\n\n```javascript\nvar validate = new Ajv().addSchema(schema).addFormat(name, regex).getSchema(uri);\n```\n\n##### .addMetaSchema(Array<Object>|Object schema [, String key]) -> Ajv\n\nAdds meta schema(s) that can be used to validate other schemas. That function should be used instead of `addSchema` because there may be instance options that would compile a meta schema incorrectly (at the moment it is `removeAdditional` option).\n\nThere is no need to explicitly add draft-07 meta schema (http://json-schema.org/draft-07/schema) - it is added by default, unless option `meta` is set to `false`. You only need to use it if you have a changed meta-schema that you want to use to validate your schemas. See `validateSchema`.\n\n##### <a name=\"api-validateschema\"></a>.validateSchema(Object schema) -> Boolean\n\nValidates schema. This method should be used to validate schemas rather than `validate` due to the inconsistency of `uri` format in JSON Schema standard.\n\nBy default this method is called automatically when the schema is added, so you rarely need to use it directly.\n\nIf schema doesn't have `$schema` property, it is validated against draft 6 meta-schema (option `meta` should not be false).\n\nIf schema has `$schema` property, then the schema with this id (that should be previously added) is used to validate passed schema.\n\nErrors will be available at `ajv.errors`.\n\n##### .getSchema(String key) -> Function<Object data>\n\nRetrieve compiled schema previously added with `addSchema` by the key passed to `addSchema` or by its full reference (id). The returned validating function has `schema` property with the reference to the original schema.\n\n##### .removeSchema([Object schema|String key|String ref|RegExp pattern]) -> Ajv\n\nRemove added/cached schema. Even if schema is referenced by other schemas it can be safely removed as dependent schemas have local references.\n\nSchema can be removed using:\n- key passed to `addSchema`\n- it's full reference (id)\n- RegExp that should match schema id or key (meta-schemas won't be removed)\n- actual schema object that will be stable-stringified to remove schema from cache\n\nIf no parameter is passed all schemas but meta-schemas will be removed and the cache will be cleared.\n\n##### <a name=\"api-addformat\"></a>.addFormat(String name, String|RegExp|Function|Object format) -> Ajv\n\nAdd custom format to validate strings or numbers. It can also be used to replace pre-defined formats for Ajv instance.\n\nStrings are converted to RegExp.\n\nFunction should return validation result as `true` or `false`.\n\nIf object is passed it should have properties `validate`, `compare` and `async`:\n\n- _validate_: a string, RegExp or a function as described above.\n- _compare_: an optional comparison function that accepts two strings and compares them according to the format meaning. This function is used with keywords `formatMaximum`/`formatMinimum` (defined in [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package). It should return `1` if the first value is bigger than the second value, `-1` if it is smaller and `0` if it is equal.\n- _async_: an optional `true` value if `validate` is an asynchronous function; in this case it should return a promise that resolves with a value `true` or `false`.\n- _type_: an optional type of data that the format applies to. It can be `\"string\"` (default) or `\"number\"` (see https://github.com/epoberezkin/ajv/issues/291#issuecomment-259923858). If the type of data is different, the validation will pass.\n\nCustom formats can be also added via `formats` option.\n\n##### <a name=\"api-addkeyword\"></a>.addKeyword(String keyword, Object definition) -> Ajv\n\nAdd custom validation keyword to Ajv instance.\n\nKeyword should be different from all standard JSON Schema keywords and different from previously defined keywords. There is no way to redefine keywords or to remove keyword definition from the instance.\n\nKeyword must start with a letter, `_` or `$`, and may continue with letters, numbers, `_`, `$`, or `-`.\nIt is recommended to use an application-specific prefix for keywords to avoid current and future name collisions.\n\nExample Keywords:\n- `\"xyz-example\"`: valid, and uses prefix for the xyz project to avoid name collisions.\n- `\"example\"`: valid, but not recommended as it could collide with future versions of JSON Schema etc.\n- `\"3-example\"`: invalid as numbers are not allowed to be the first character in a keyword\n\nKeyword definition is an object with the following properties:\n\n- _type_: optional string or array of strings with data type(s) that the keyword applies to. If not present, the keyword will apply to all types.\n- _validate_: validating function\n- _compile_: compiling function\n- _macro_: macro function\n- _inline_: compiling function that returns code (as string)\n- _schema_: an optional `false` value used with \"validate\" keyword to not pass schema\n- _metaSchema_: an optional meta-schema for keyword schema\n- _dependencies_: an optional list of properties that must be present in the parent schema - it will be checked during schema compilation\n- _modifying_: `true` MUST be passed if keyword modifies data\n- _statements_: `true` can be passed in case inline keyword generates statements (as opposed to expression)\n- _valid_: pass `true`/`false` to pre-define validation result, the result returned from validation function will be ignored. This option cannot be used with macro keywords.\n- _$data_: an optional `true` value to support [$data reference](#data-reference) as the value of custom keyword. The reference will be resolved at validation time. If the keyword has meta-schema it would be extended to allow $data and it will be used to validate the resolved value. Supporting $data reference requires that keyword has validating function (as the only option or in addition to compile, macro or inline function).\n- _async_: an optional `true` value if the validation function is asynchronous (whether it is compiled or passed in _validate_ property); in this case it should return a promise that resolves with a value `true` or `false`. This option is ignored in case of \"macro\" and \"inline\" keywords.\n- _errors_: an optional boolean or string `\"full\"` indicating whether keyword returns errors. If this property is not set Ajv will determine if the errors were set in case of failed validation.\n\n_compile_, _macro_ and _inline_ are mutually exclusive, only one should be used at a time. _validate_ can be used separately or in addition to them to support $data reference.\n\n__Please note__: If the keyword is validating data type that is different from the type(s) in its definition, the validation function will not be called (and expanded macro will not be used), so there is no need to check for data type inside validation function or inside schema returned by macro function (unless you want to enforce a specific type and for some reason do not want to use a separate `type` keyword for that). In the same way as standard keywords work, if the keyword does not apply to the data type being validated, the validation of this keyword will succeed.\n\nSee [Defining custom keywords](#defining-custom-keywords) for more details.\n\n##### .getKeyword(String keyword) -> Object|Boolean\n\nReturns custom keyword definition, `true` for pre-defined keywords and `false` if the keyword is unknown.\n\n##### .removeKeyword(String keyword) -> Ajv\n\nRemoves custom or pre-defined keyword so you can redefine them.\n\nWhile this method can be used to extend pre-defined keywords, it can also be used to completely change their meaning - it may lead to unexpected results.\n\n__Please note__: schemas compiled before the keyword is removed will continue to work without changes. To recompile schemas use `removeSchema` method and compile them again.\n\n##### .errorsText([Array<Object> errors [, Object options]]) -> String\n\nReturns the text with all errors in a String.\n\nOptions can have properties `separator` (string used to separate errors, \", \" by default) and `dataVar` (the variable name that dataPaths are prefixed with, \"data\" by default).\n\n## Options\n\nDefaults:\n\n```javascript\n{\n // validation and reporting options:\n $data: false,\n allErrors: false,\n verbose: false,\n $comment: false, // NEW in Ajv version 6.0\n jsonPointers: false,\n uniqueItems: true,\n unicode: true,\n nullable: false,\n format: 'fast',\n formats: {},\n unknownFormats: true,\n schemas: {},\n logger: undefined,\n // referenced schema options:\n schemaId: '$id',\n missingRefs: true,\n extendRefs: 'ignore', // recommended 'fail'\n loadSchema: undefined, // function(uri: string): Promise {}\n // options to modify validated data:\n removeAdditional: false,\n useDefaults: false,\n coerceTypes: false,\n // strict mode options\n strictDefaults: false,\n strictKeywords: false,\n // asynchronous validation options:\n transpile: undefined, // requires ajv-async package\n // advanced options:\n meta: true,\n validateSchema: true,\n addUsedSchema: true,\n inlineRefs: true,\n passContext: false,\n loopRequired: Infinity,\n ownProperties: false,\n multipleOfPrecision: false,\n errorDataPath: 'object', // deprecated\n messages: true,\n sourceCode: false,\n processCode: undefined, // function (str: string): string {}\n cache: new Cache,\n serialize: undefined\n}\n```\n\n##### Validation and reporting options\n\n- _$data_: support [$data references](#data-reference). Draft 6 meta-schema that is added by default will be extended to allow them. If you want to use another meta-schema you need to use $dataMetaSchema method to add support for $data reference. See [API](#api).\n- _allErrors_: check all rules collecting all errors. Default is to return after the first error.\n- _verbose_: include the reference to the part of the schema (`schema` and `parentSchema`) and validated data in errors (false by default).\n- _$comment_ (NEW in Ajv version 6.0): log or pass the value of `$comment` keyword to a function. Option values:\n - `false` (default): ignore $comment keyword.\n - `true`: log the keyword value to console.\n - function: pass the keyword value, its schema path and root schema to the specified function\n- _jsonPointers_: set `dataPath` property of errors using [JSON Pointers](https://tools.ietf.org/html/rfc6901) instead of JavaScript property access notation.\n- _uniqueItems_: validate `uniqueItems` keyword (true by default).\n- _unicode_: calculate correct length of strings with unicode pairs (true by default). Pass `false` to use `.length` of strings that is faster, but gives \"incorrect\" lengths of strings with unicode pairs - each unicode pair is counted as two characters.\n- _nullable_: support keyword \"nullable\" from [Open API 3 specification](https://swagger.io/docs/specification/data-models/data-types/).\n- _format_: formats validation mode. Option values:\n - `\"fast\"` (default) - simplified and fast validation (see [Formats](#formats) for details of which formats are available and affected by this option).\n - `\"full\"` - more restrictive and slow validation. E.g., 25:00:00 and 2015/14/33 will be invalid time and date in 'full' mode but it will be valid in 'fast' mode.\n - `false` - ignore all format keywords.\n- _formats_: an object with custom formats. Keys and values will be passed to `addFormat` method.\n- _unknownFormats_: handling of unknown formats. Option values:\n - `true` (default) - if an unknown format is encountered the exception is thrown during schema compilation. If `format` keyword value is [$data reference](#data-reference) and it is unknown the validation will fail.\n - `[String]` - an array of unknown format names that will be ignored. This option can be used to allow usage of third party schemas with format(s) for which you don't have definitions, but still fail if another unknown format is used. If `format` keyword value is [$data reference](#data-reference) and it is not in this array the validation will fail.\n - `\"ignore\"` - to log warning during schema compilation and always pass validation (the default behaviour in versions before 5.0.0). This option is not recommended, as it allows to mistype format name and it won't be validated without any error message. This behaviour is required by JSON Schema specification.\n- _schemas_: an array or object of schemas that will be added to the instance. In case you pass the array the schemas must have IDs in them. When the object is passed the method `addSchema(value, key)` will be called for each schema in this object.\n- _logger_: sets the logging method. Default is the global `console` object that should have methods `log`, `warn` and `error`. Option values:\n - custom logger - it should have methods `log`, `warn` and `error`. If any of these methods is missing an exception will be thrown.\n - `false` - logging is disabled.\n\n##### Referenced schema options\n\n- _schemaId_: this option defines which keywords are used as schema URI. Option value:\n - `\"$id\"` (default) - only use `$id` keyword as schema URI (as specified in JSON Schema draft-06/07), ignore `id` keyword (if it is present a warning will be logged).\n - `\"id\"` - only use `id` keyword as schema URI (as specified in JSON Schema draft-04), ignore `$id` keyword (if it is present a warning will be logged).\n - `\"auto\"` - use both `$id` and `id` keywords as schema URI. If both are present (in the same schema object) and different the exception will be thrown during schema compilation.\n- _missingRefs_: handling of missing referenced schemas. Option values:\n - `true` (default) - if the reference cannot be resolved during compilation the exception is thrown. The thrown error has properties `missingRef` (with hash fragment) and `missingSchema` (without it). Both properties are resolved relative to the current base id (usually schema id, unless it was substituted).\n - `\"ignore\"` - to log error during compilation and always pass validation.\n - `\"fail\"` - to log error and successfully compile schema but fail validation if this rule is checked.\n- _extendRefs_: validation of other keywords when `$ref` is present in the schema. Option values:\n - `\"ignore\"` (default) - when `$ref` is used other keywords are ignored (as per [JSON Reference](https://tools.ietf.org/html/draft-pbryan-zyp-json-ref-03#section-3) standard). A warning will be logged during the schema compilation.\n - `\"fail\"` (recommended) - if other validation keywords are used together with `$ref` the exception will be thrown when the schema is compiled. This option is recommended to make sure schema has no keywords that are ignored, which can be confusing.\n - `true` - validate all keywords in the schemas with `$ref` (the default behaviour in versions before 5.0.0).\n- _loadSchema_: asynchronous function that will be used to load remote schemas when `compileAsync` [method](#api-compileAsync) is used and some reference is missing (option `missingRefs` should NOT be 'fail' or 'ignore'). This function should accept remote schema uri as a parameter and return a Promise that resolves to a schema. See example in [Asynchronous compilation](#asynchronous-schema-compilation).\n\n##### Options to modify validated data\n\n- _removeAdditional_: remove additional properties - see example in [Filtering data](#filtering-data). This option is not used if schema is added with `addMetaSchema` method. Option values:\n - `false` (default) - not to remove additional properties\n - `\"all\"` - all additional properties are removed, regardless of `additionalProperties` keyword in schema (and no validation is made for them).\n - `true` - only additional properties with `additionalProperties` keyword equal to `false` are removed.\n - `\"failing\"` - additional properties that fail schema validation will be removed (where `additionalProperties` keyword is `false` or schema).\n- _useDefaults_: replace missing or undefined properties and items with the values from corresponding `default` keywords. Default behaviour is to ignore `default` keywords. This option is not used if schema is added with `addMetaSchema` method. See examples in [Assigning defaults](#assigning-defaults). Option values:\n - `false` (default) - do not use defaults\n - `true` - insert defaults by value (object literal is used).\n - `\"empty\"` - in addition to missing or undefined, use defaults for properties and items that are equal to `null` or `\"\"` (an empty string).\n - `\"shared\"` (deprecated) - insert defaults by reference. If the default is an object, it will be shared by all instances of validated data. If you modify the inserted default in the validated data, it will be modified in the schema as well.\n- _coerceTypes_: change data type of data to match `type` keyword. See the example in [Coercing data types](#coercing-data-types) and [coercion rules](https://github.com/epoberezkin/ajv/blob/master/COERCION.md). Option values:\n - `false` (default) - no type coercion.\n - `true` - coerce scalar data types.\n - `\"array\"` - in addition to coercions between scalar types, coerce scalar data to an array with one element and vice versa (as required by the schema).\n\n##### Strict mode options\n\n- _strictDefaults_: report ignored `default` keywords in schemas. Option values:\n - `false` (default) - ignored defaults are not reported\n - `true` - if an ignored default is present, throw an error\n - `\"log\"` - if an ignored default is present, log warning\n- _strictKeywords_: report unknown keywords in schemas. Option values:\n - `false` (default) - unknown keywords are not reported\n - `true` - if an unknown keyword is present, throw an error\n - `\"log\"` - if an unknown keyword is present, log warning\n\n##### Asynchronous validation options\n\n- _transpile_: Requires [ajv-async](https://github.com/epoberezkin/ajv-async) package. It determines whether Ajv transpiles compiled asynchronous validation function. Option values:\n - `undefined` (default) - transpile with [nodent](https://github.com/MatAtBread/nodent) if async functions are not supported.\n - `true` - always transpile with nodent.\n - `false` - do not transpile; if async functions are not supported an exception will be thrown.\n\n##### Advanced options\n\n- _meta_: add [meta-schema](http://json-schema.org/documentation.html) so it can be used by other schemas (true by default). If an object is passed, it will be used as the default meta-schema for schemas that have no `$schema` keyword. This default meta-schema MUST have `$schema` keyword.\n- _validateSchema_: validate added/compiled schemas against meta-schema (true by default). `$schema` property in the schema can be http://json-schema.org/draft-07/schema or absent (draft-07 meta-schema will be used) or can be a reference to the schema previously added with `addMetaSchema` method. Option values:\n - `true` (default) - if the validation fails, throw the exception.\n - `\"log\"` - if the validation fails, log error.\n - `false` - skip schema validation.\n- _addUsedSchema_: by default methods `compile` and `validate` add schemas to the instance if they have `$id` (or `id`) property that doesn't start with \"#\". If `$id` is present and it is not unique the exception will be thrown. Set this option to `false` to skip adding schemas to the instance and the `$id` uniqueness check when these methods are used. This option does not affect `addSchema` method.\n- _inlineRefs_: Affects compilation of referenced schemas. Option values:\n - `true` (default) - the referenced schemas that don't have refs in them are inlined, regardless of their size - that substantially improves performance at the cost of the bigger size of compiled schema functions.\n - `false` - to not inline referenced schemas (they will be compiled as separate functions).\n - integer number - to limit the maximum number of keywords of the schema that will be inlined.\n- _passContext_: pass validation context to custom keyword functions. If this option is `true` and you pass some context to the compiled validation function with `validate.call(context, data)`, the `context` will be available as `this` in your custom keywords. By default `this` is Ajv instance.\n- _loopRequired_: by default `required` keyword is compiled into a single expression (or a sequence of statements in `allErrors` mode). In case of a very large number of properties in this keyword it may result in a very big validation function. Pass integer to set the number of properties above which `required` keyword will be validated in a loop - smaller validation function size but also worse performance.\n- _ownProperties_: by default Ajv iterates over all enumerable object properties; when this option is `true` only own enumerable object properties (i.e. found directly on the object rather than on its prototype) are iterated. Contributed by @mbroadst.\n- _multipleOfPrecision_: by default `multipleOf` keyword is validated by comparing the result of division with parseInt() of that result. It works for dividers that are bigger than 1. For small dividers such as 0.01 the result of the division is usually not integer (even when it should be integer, see issue [#84](https://github.com/epoberezkin/ajv/issues/84)). If you need to use fractional dividers set this option to some positive integer N to have `multipleOf` validated using this formula: `Math.abs(Math.round(division) - division) < 1e-N` (it is slower but allows for float arithmetics deviations).\n- _errorDataPath_ (deprecated): set `dataPath` to point to 'object' (default) or to 'property' when validating keywords `required`, `additionalProperties` and `dependencies`.\n- _messages_: Include human-readable messages in errors. `true` by default. `false` can be passed when custom messages are used (e.g. with [ajv-i18n](https://github.com/epoberezkin/ajv-i18n)).\n- _sourceCode_: add `sourceCode` property to validating function (for debugging; this code can be different from the result of toString call).\n- _processCode_: an optional function to process generated code before it is passed to Function constructor. It can be used to either beautify (the validating function is generated without line-breaks) or to transpile code. Starting from version 5.0.0 this option replaced options:\n - `beautify` that formatted the generated function using [js-beautify](https://github.com/beautify-web/js-beautify). If you want to beautify the generated code pass `require('js-beautify').js_beautify`.\n - `transpile` that transpiled asynchronous validation function. You can still use `transpile` option with [ajv-async](https://github.com/epoberezkin/ajv-async) package. See [Asynchronous validation](#asynchronous-validation) for more information.\n- _cache_: an optional instance of cache to store compiled schemas using stable-stringified schema as a key. For example, set-associative cache [sacjs](https://github.com/epoberezkin/sacjs) can be used. If not passed then a simple hash is used which is good enough for the common use case (a limited number of statically defined schemas). Cache should have methods `put(key, value)`, `get(key)`, `del(key)` and `clear()`.\n- _serialize_: an optional function to serialize schema to cache key. Pass `false` to use schema itself as a key (e.g., if WeakMap used as a cache). By default [fast-json-stable-stringify](https://github.com/epoberezkin/fast-json-stable-stringify) is used.\n\n## Validation errors\n\nIn case of validation failure, Ajv assigns the array of errors to `errors` property of validation function (or to `errors` property of Ajv instance when `validate` or `validateSchema` methods were called). In case of [asynchronous validation](#asynchronous-validation), the returned promise is rejected with exception `Ajv.ValidationError` that has `errors` property.\n\n### Error objects\n\nEach error is an object with the following properties:\n\n- _keyword_: validation keyword.\n- _dataPath_: the path to the part of the data that was validated. By default `dataPath` uses JavaScript property access notation (e.g., `\".prop[1].subProp\"`). When the option `jsonPointers` is true (see [Options](#options)) `dataPath` will be set using JSON pointer standard (e.g., `\"/prop/1/subProp\"`).\n- _schemaPath_: the path (JSON-pointer as a URI fragment) to the schema of the keyword that failed validation.\n- _params_: the object with the additional information about error that can be used to create custom error messages (e.g., using [ajv-i18n](https://github.com/epoberezkin/ajv-i18n) package). See below for parameters set by all keywords.\n- _message_: the standard error message (can be excluded with option `messages` set to false).\n- _schema_: the schema of the keyword (added with `verbose` option).\n- _parentSchema_: the schema containing the keyword (added with `verbose` option)\n- _data_: the data validated by the keyword (added with `verbose` option).\n\n__Please note__: `propertyNames` keyword schema validation errors have an additional property `propertyName`, `dataPath` points to the object. After schema validation for each property name, if it is invalid an additional error is added with the property `keyword` equal to `\"propertyNames\"`.\n\n### Error parameters\n\nProperties of `params` object in errors depend on the keyword that failed validation.\n\n- `maxItems`, `minItems`, `maxLength`, `minLength`, `maxProperties`, `minProperties` - property `limit` (number, the schema of the keyword).\n- `additionalItems` - property `limit` (the maximum number of allowed items in case when `items` keyword is an array of schemas and `additionalItems` is false).\n- `additionalProperties` - property `additionalProperty` (the property not used in `properties` and `patternProperties` keywords).\n- `dependencies` - properties:\n - `property` (dependent property),\n - `missingProperty` (required missing dependency - only the first one is reported currently)\n - `deps` (required dependencies, comma separated list as a string),\n - `depsCount` (the number of required dependencies).\n- `format` - property `format` (the schema of the keyword).\n- `maximum`, `minimum` - properties:\n - `limit` (number, the schema of the keyword),\n - `exclusive` (boolean, the schema of `exclusiveMaximum` or `exclusiveMinimum`),\n - `comparison` (string, comparison operation to compare the data to the limit, with the data on the left and the limit on the right; can be \"<\", \"<=\", \">\", \">=\")\n- `multipleOf` - property `multipleOf` (the schema of the keyword)\n- `pattern` - property `pattern` (the schema of the keyword)\n- `required` - property `missingProperty` (required property that is missing).\n- `propertyNames` - property `propertyName` (an invalid property name).\n- `patternRequired` (in ajv-keywords) - property `missingPattern` (required pattern that did not match any property).\n- `type` - property `type` (required type(s), a string, can be a comma-separated list)\n- `uniqueItems` - properties `i` and `j` (indices of duplicate items).\n- `const` - property `allowedValue` pointing to the value (the schema of the keyword).\n- `enum` - property `allowedValues` pointing to the array of values (the schema of the keyword).\n- `$ref` - property `ref` with the referenced schema URI.\n- `oneOf` - property `passingSchemas` (array of indices of passing schemas, null if no schema passes).\n- custom keywords (in case keyword definition doesn't create errors) - property `keyword` (the keyword name).\n\n## Plugins\n\nAjv can be extended with plugins that add custom keywords, formats or functions to process generated code. When such plugin is published as npm package it is recommended that it follows these conventions:\n\n- it exports a function\n- this function accepts ajv instance as the first parameter and returns the same instance to allow chaining\n- this function can accept an optional configuration as the second parameter\n\nIf you have published a useful plugin please submit a PR to add it to the next section.\n\n## Related packages\n\n- [ajv-async](https://github.com/epoberezkin/ajv-async) - plugin to configure async validation mode\n- [ajv-bsontype](https://github.com/BoLaMN/ajv-bsontype) - plugin to validate mongodb's bsonType formats\n- [ajv-cli](https://github.com/jessedc/ajv-cli) - command line interface\n- [ajv-errors](https://github.com/epoberezkin/ajv-errors) - plugin for custom error messages\n- [ajv-i18n](https://github.com/epoberezkin/ajv-i18n) - internationalised error messages\n- [ajv-istanbul](https://github.com/epoberezkin/ajv-istanbul) - plugin to instrument generated validation code to measure test coverage of your schemas\n- [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) - plugin with custom validation keywords (select, typeof, etc.)\n- [ajv-merge-patch](https://github.com/epoberezkin/ajv-merge-patch) - plugin with keywords $merge and $patch\n- [ajv-pack](https://github.com/epoberezkin/ajv-pack) - produces a compact module exporting validation functions\n\n## Some packages using Ajv\n\n- [webpack](https://github.com/webpack/webpack) - a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser\n- [jsonscript-js](https://github.com/JSONScript/jsonscript-js) - the interpreter for [JSONScript](http://www.jsonscript.org) - scripted processing of existing endpoints and services\n- [osprey-method-handler](https://github.com/mulesoft-labs/osprey-method-handler) - Express middleware for validating requests and responses based on a RAML method object, used in [osprey](https://github.com/mulesoft/osprey) - validating API proxy generated from a RAML definition\n- [har-validator](https://github.com/ahmadnassri/har-validator) - HTTP Archive (HAR) validator\n- [jsoneditor](https://github.com/josdejong/jsoneditor) - a web-based tool to view, edit, format, and validate JSON http://jsoneditoronline.org\n- [JSON Schema Lint](https://github.com/nickcmaynard/jsonschemalint) - a web tool to validate JSON/YAML document against a single JSON Schema http://jsonschemalint.com\n- [objection](https://github.com/vincit/objection.js) - SQL-friendly ORM for Node.js\n- [table](https://github.com/gajus/table) - formats data into a string table\n- [ripple-lib](https://github.com/ripple/ripple-lib) - a JavaScript API for interacting with [Ripple](https://ripple.com) in Node.js and the browser\n- [restbase](https://github.com/wikimedia/restbase) - distributed storage with REST API & dispatcher for backend services built to provide a low-latency & high-throughput API for Wikipedia / Wikimedia content\n- [hippie-swagger](https://github.com/CacheControl/hippie-swagger) - [Hippie](https://github.com/vesln/hippie) wrapper that provides end to end API testing with swagger validation\n- [react-form-controlled](https://github.com/seeden/react-form-controlled) - React controlled form components with validation\n- [rabbitmq-schema](https://github.com/tjmehta/rabbitmq-schema) - a schema definition module for RabbitMQ graphs and messages\n- [@query/schema](https://www.npmjs.com/package/@query/schema) - stream filtering with a URI-safe query syntax parsing to JSON Schema\n- [chai-ajv-json-schema](https://github.com/peon374/chai-ajv-json-schema) - chai plugin to us JSON Schema with expect in mocha tests\n- [grunt-jsonschema-ajv](https://github.com/SignpostMarv/grunt-jsonschema-ajv) - Grunt plugin for validating files against JSON Schema\n- [extract-text-webpack-plugin](https://github.com/webpack-contrib/extract-text-webpack-plugin) - extract text from bundle into a file\n- [electron-builder](https://github.com/electron-userland/electron-builder) - a solution to package and build a ready for distribution Electron app\n- [addons-linter](https://github.com/mozilla/addons-linter) - Mozilla Add-ons Linter\n- [gh-pages-generator](https://github.com/epoberezkin/gh-pages-generator) - multi-page site generator converting markdown files to GitHub pages\n- [ESLint](https://github.com/eslint/eslint) - the pluggable linting utility for JavaScript and JSX\n\n## Tests\n\n```\nnpm install\ngit submodule update --init\nnpm test\n```\n\n## Contributing\n\nAll validation functions are generated using doT templates in [dot](https://github.com/epoberezkin/ajv/tree/master/lib/dot) folder. Templates are precompiled so doT is not a run-time dependency.\n\n`npm run build` - compiles templates to [dotjs](https://github.com/epoberezkin/ajv/tree/master/lib/dotjs) folder.\n\n`npm run watch` - automatically compiles templates when files in dot folder change\n\nPlease see [Contributing guidelines](https://github.com/epoberezkin/ajv/blob/master/CONTRIBUTING.md)\n\n## Changes history\n\nSee https://github.com/epoberezkin/ajv/releases\n\n__Please note__: [Changes in version 6.0.0](https://github.com/epoberezkin/ajv/releases/tag/v6.0.0).\n\n[Version 5.0.0](https://github.com/epoberezkin/ajv/releases/tag/5.0.0).\n\n[Version 4.0.0](https://github.com/epoberezkin/ajv/releases/tag/4.0.0).\n\n[Version 3.0.0](https://github.com/epoberezkin/ajv/releases/tag/3.0.0).\n\n[Version 2.0.0](https://github.com/epoberezkin/ajv/releases/tag/2.0.0).\n\n## License\n\n[MIT](https://github.com/epoberezkin/ajv/blob/master/LICENSE)\n# DES.js\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# shallowequal [](https://travis-ci.org/dashed/shallowequal) [](https://npmjs.com/shallowequal) [](https://www.npmjs.com/package/shallowequal)\n\n[](https://greenkeeper.io/)\n\n> `shallowequal` is like lodash's [`isEqualWith`](https://lodash.com/docs/4.17.4#isEqualWith) but for shallow (strict) equal.\n\n`shallowequal(value, other, [customizer], [thisArg])`\n\nPerforms a ***shallow equality*** comparison between two values (i.e. `value` and `other`) to determine if they are equivalent.\n\nThe equality is performed by iterating through keys on the given `value`, and returning `false` whenever any key has values which are not **strictly equal** between `value` and `other`. Otherwise, return `true` whenever the values of all keys are strictly equal.\n\nIf `customizer` (expected to be a function) is provided it is invoked to compare values. If `customizer` returns `undefined` (i.e. `void 0`), then comparisons are handled by the `shallowequal` function instead.\n\nThe `customizer` is bound to `thisArg` and invoked with three arguments: `(value, other, key)`.\n\n**NOTE:** Docs are (shamelessly) adapted from [lodash's v3.x docs](https://lodash.com/docs/3.10.1#isEqualWith)\n\n## Install\n\n```sh\n$ yarn add shallowequal\n# npm v5+\n$ npm install shallowequal\n# before npm v5\n$ npm install --save shallowequal\n```\n\n## Usage\n\n```js\nconst shallowequal = require('shallowequal');\n\nconst object = { 'user': 'fred' };\nconst other = { 'user': 'fred' };\n\nobject == other;\n// → false\n\nshallowequal(object, other);\n// → true\n```\n\n## Credit\n\nCode for `shallowEqual` originated from https://github.com/gaearon/react-pure-render/ and has since been refactored to have the exact same API as `lodash.isEqualWith` (as of `v4.17.4`).\n\n## Development\n\n- `node.js` and `npm`. See: https://github.com/creationix/nvm#installation\n- `yarn`. See: https://yarnpkg.com/en/docs/install\n- `npm` dependencies. Run: `yarn install`\n\n### Chores\n\n- Lint: `yarn lint`\n- Test: `yarn test`\n- Pretty: `yarn pretty`\n- Pre-publish: `yarn prepublish`\n\n## License\n\nMIT.\n# is-accessor-descriptor [](https://www.npmjs.com/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-accessor-descriptor\n```\n\n## Usage\n\n```js\nvar isAccessor = require('is-accessor-descriptor');\n\nisAccessor({get: function() {}});\n//=> true\n```\n\nYou may also pass an object and property name to check if the property is an accessor:\n\n```js\nisAccessor(foo, 'bar');\n```\n\n## Examples\n\n`false` when not an object\n\n```js\nisAccessor('a')\nisAccessor(null)\nisAccessor([])\n//=> false\n```\n\n`true` when the object has valid properties\n\nand the properties all have the correct JavaScript types:\n\n```js\nisAccessor({get: noop, set: noop})\nisAccessor({get: noop})\nisAccessor({set: noop})\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisAccessor({get: noop, set: noop, bar: 'baz'})\nisAccessor({get: noop, writable: true})\nisAccessor({get: noop, value: true})\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisAccessor({get: noop, set: 'baz'})\nisAccessor({get: 'foo', set: noop})\nisAccessor({get: 'foo', bar: 'baz'})\nisAccessor({get: 'foo', set: 'baz'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisAccessor({get: noop, set: noop, enumerable: 'foo'})\nisAccessor({set: noop, configurable: 'foo'})\nisAccessor({get: noop, configurable: 'foo'})\n//=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 22 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# osenv\n\nLook up environment settings specific to different operating systems.\n\n## Usage\n\n```javascript\nvar osenv = require('osenv')\nvar path = osenv.path()\nvar user = osenv.user()\n// etc.\n\n// Some things are not reliably in the env, and have a fallback command:\nvar h = osenv.hostname(function (er, hostname) {\n h = hostname\n})\n// This will still cause it to be memoized, so calling osenv.hostname()\n// is now an immediate operation.\n\n// You can always send a cb, which will get called in the nextTick\n// if it's been memoized, or wait for the fallback data if it wasn't\n// found in the environment.\nosenv.hostname(function (er, hostname) {\n if (er) console.error('error looking up hostname')\n else console.log('this machine calls itself %s', hostname)\n})\n```\n\n## osenv.hostname()\n\nThe machine name. Calls `hostname` if not found.\n\n## osenv.user()\n\nThe currently logged-in user. Calls `whoami` if not found.\n\n## osenv.prompt()\n\nEither PS1 on unix, or PROMPT on Windows.\n\n## osenv.tmpdir()\n\nThe place where temporary files should be created.\n\n## osenv.home()\n\nNo place like it.\n\n## osenv.path()\n\nAn array of the places that the operating system will search for\nexecutables.\n\n## osenv.editor() \n\nReturn the executable name of the editor program. This uses the EDITOR\nand VISUAL environment variables, and falls back to `vi` on Unix, or\n`notepad.exe` on Windows.\n\n## osenv.shell()\n\nThe SHELL on Unix, which Windows calls the ComSpec. Defaults to 'bash'\nor 'cmd'.\n# CSS Modules: Values\n\nPass arbitrary values between your module files\n\n### Usage\n\n```css\n/* colors.css */\n@value primary: #BF4040;\n@value secondary: #1F4F7F;\n\n.text-primary {\n color: primary;\n}\n\n.text-secondary {\n color: secondary;\n}\n```\n\n```css\n/* breakpoints.css */\n@value small: (max-width: 599px);\n@value medium: (min-width: 600px) and (max-width: 959px);\n@value large: (min-width: 960px);\n```\n\n```css\n/* my-component.css */\n/* alias paths for other values or composition */\n@value colors: \"./colors.css\"; \n/* import multiple from a single file */\n@value primary, secondary from colors;\n/* make local aliases to imported values */\n@value small as bp-small, large as bp-large from \"./breakpoints.css\";\n\n.header {\n composes: text-primary from colors;\n box-shadow: 0 0 10px secondary;\n}\n\n@media bp-small {\n .header {\n box-shadow: 0 0 4px secondary;\n }\n}\n@media bp-large {\n .header {\n box-shadow: 0 0 20px secondary;\n }\n}\n```\n\n**If you are using Sass** along with this PostCSS plugin, do not use the colon `:` in your `@value` definitions. It will cause Sass to crash.\n\nNote also you can _import_ multiple values at once but can only _define_ one value per line.\n\n```css\n@value a: b, c: d; /* defines a as \"b, c: d\" */\n```\n\n### Justification\n\nSee [this PR](https://github.com/css-modules/css-modules-loader-core/pull/28) for more background\n\n## License\n\nISC\n\n## With thanks\n\n- Mark Dalgleish\n- Tobias Koppers\n- Josh Johnston\n\n---\nGlen Maddern, 2015.\n# graceful-fs\n\ngraceful-fs functions as a drop-in replacement for the fs module,\nmaking various improvements.\n\nThe improvements are meant to normalize behavior across different\nplatforms and environments, and to make filesystem access more\nresilient to errors.\n\n## Improvements over [fs module](https://nodejs.org/api/fs.html)\n\n* Queues up `open` and `readdir` calls, and retries them once\n something closes if there is an EMFILE error from too many file\n descriptors.\n* fixes `lchmod` for Node versions prior to 0.6.2.\n* implements `fs.lutimes` if possible. Otherwise it becomes a noop.\n* ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or\n `lchown` if the user isn't root.\n* makes `lchmod` and `lchown` become noops, if not available.\n* retries reading a file if `read` results in EAGAIN error.\n\nOn Windows, it retries renaming a file for up to one second if `EACCESS`\nor `EPERM` error occurs, likely because antivirus software has locked\nthe directory.\n\n## USAGE\n\n```javascript\n// use just like fs\nvar fs = require('graceful-fs')\n\n// now go and do stuff with it...\nfs.readFileSync('some-file-or-whatever')\n```\n\n## Global Patching\n\nIf you want to patch the global fs module (or any other fs-like\nmodule) you can do this:\n\n```javascript\n// Make sure to read the caveat below.\nvar realFs = require('fs')\nvar gracefulFs = require('graceful-fs')\ngracefulFs.gracefulify(realFs)\n```\n\nThis should only ever be done at the top-level application layer, in\norder to delay on EMFILE errors from any fs-using dependencies. You\nshould **not** do this in a library, because it can cause unexpected\ndelays in other parts of the program.\n\n## Changes\n\nThis module is fairly stable at this point, and used by a lot of\nthings. That being said, because it implements a subtle behavior\nchange in a core part of the node API, even modest changes can be\nextremely breaking, and the versioning is thus biased towards\nbumping the major when in doubt.\n\nThe main change between major versions has been switching between\nproviding a fully-patched `fs` module vs monkey-patching the node core\nbuiltin, and the approach by which a non-monkey-patched `fs` was\ncreated.\n\nThe goal is to trade `EMFILE` errors for slower fs operations. So, if\nyou try to open a zillion files, rather than crashing, `open`\noperations will be queued up and wait for something else to `close`.\n\nThere are advantages to each approach. Monkey-patching the fs means\nthat no `EMFILE` errors can possibly occur anywhere in your\napplication, because everything is using the same core `fs` module,\nwhich is patched. However, it can also obviously cause undesirable\nside-effects, especially if the module is loaded multiple times.\n\nImplementing a separate-but-identical patched `fs` module is more\nsurgical (and doesn't run the risk of patching multiple times), but\nalso imposes the challenge of keeping in sync with the core module.\n\nThe current approach loads the `fs` module, and then creates a\nlookalike object that has all the same methods, except a few that are\npatched. It is safe to use in all versions of Node from 0.8 through\n7.0.\n\n### v4\n\n* Do not monkey-patch the fs module. This module may now be used as a\n drop-in dep, and users can opt into monkey-patching the fs builtin\n if their app requires it.\n\n### v3\n\n* Monkey-patch fs, because the eval approach no longer works on recent\n node.\n* fixed possible type-error throw if rename fails on windows\n* verify that we *never* get EMFILE errors\n* Ignore ENOSYS from chmod/chown\n* clarify that graceful-fs must be used as a drop-in\n\n### v2.1.0\n\n* Use eval rather than monkey-patching fs.\n* readdir: Always sort the results\n* win32: requeue a file if error has an OK status\n\n### v2.0\n\n* A return to monkey patching\n* wrap process.cwd\n\n### v1.1\n\n* wrap readFile\n* Wrap fs.writeFile.\n* readdir protection\n* Don't clobber the fs builtin\n* Handle fs.read EAGAIN errors by trying again\n* Expose the curOpen counter\n* No-op lchown/lchmod if not implemented\n* fs.rename patch only for win32\n* Patch fs.rename to handle AV software on Windows\n* Close #4 Chown should not fail on einval or eperm if non-root\n* Fix isaacs/fstream#1 Only wrap fs one time\n* Fix #3 Start at 1024 max files, then back off on EMFILE\n* lutimes that doens't blow up on Linux\n* A full on-rewrite using a queue instead of just swallowing the EMFILE error\n* Wrap Read/Write streams as well\n\n### 1.0\n\n* Update engines for node 0.6\n* Be lstat-graceful on Windows\n* first\n# node-pre-gyp\n\n#### node-pre-gyp makes it easy to publish and install Node.js C++ addons from binaries\n\n[](https://nodei.co/npm/node-pre-gyp/)\n\n[](https://travis-ci.org/mapbox/node-pre-gyp)\n[](https://ci.appveyor.com/project/Mapbox/node-pre-gyp)\n[](https://david-dm.org/mapbox/node-pre-gyp)\n\n`node-pre-gyp` stands between [npm](https://github.com/npm/npm) and [node-gyp](https://github.com/Tootallnate/node-gyp) and offers a cross-platform method of binary deployment.\n\n### Features\n\n - A command line tool called `node-pre-gyp` that can install your package's C++ module from a binary.\n - A variety of developer targeted commands for packaging, testing, and publishing binaries.\n - A JavaScript module that can dynamically require your installed binary: `require('node-pre-gyp').find`\n\nFor a hello world example of a module packaged with `node-pre-gyp` see <https://github.com/springmeyer/node-addon-example> and [the wiki ](https://github.com/mapbox/node-pre-gyp/wiki/Modules-using-node-pre-gyp) for real world examples.\n\n## Credits\n\n - The module is modeled after [node-gyp](https://github.com/Tootallnate/node-gyp) by [@Tootallnate](https://github.com/Tootallnate)\n - Motivation for initial development came from [@ErisDS](https://github.com/ErisDS) and the [Ghost Project](https://github.com/TryGhost/Ghost).\n - Development is sponsored by [Mapbox](https://www.mapbox.com/)\n\n## FAQ\n\nSee the [Frequently Ask Questions](https://github.com/mapbox/node-pre-gyp/wiki/FAQ).\n\n## Depends\n\n - Node.js >= node v6.x\n\n## Install\n\n`node-pre-gyp` is designed to be installed as a local dependency of your Node.js C++ addon and accessed like:\n\n ./node_modules/.bin/node-pre-gyp --help\n\nBut you can also install it globally:\n\n npm install node-pre-gyp -g\n\n## Usage\n\n### Commands\n\nView all possible commands:\n\n node-pre-gyp --help\n\n- clean - Remove the entire folder containing the compiled .node module\n- install - Install pre-built binary for module\n- reinstall - Run \"clean\" and \"install\" at once\n- build - Compile the module by dispatching to node-gyp or nw-gyp\n- rebuild - Run \"clean\" and \"build\" at once\n- package - Pack binary into tarball\n- testpackage - Test that the staged package is valid\n- publish - Publish pre-built binary\n- unpublish - Unpublish pre-built binary\n- info - Fetch info on published binaries\n\nYou can also chain commands:\n\n node-pre-gyp clean build unpublish publish info\n\n### Options\n\nOptions include:\n\n - `-C/--directory`: run the command in this directory\n - `--build-from-source`: build from source instead of using pre-built binary\n - `--update-binary`: reinstall by replacing previously installed local binary with remote binary\n - `--runtime=node-webkit`: customize the runtime: `node`, `electron` and `node-webkit` are the valid options\n - `--fallback-to-build`: fallback to building from source if pre-built binary is not available\n - `--target=0.4.0`: Pass the target node or node-webkit version to compile against\n - `--target_arch=ia32`: Pass the target arch and override the host `arch`. Valid values are 'ia32','x64', or `arm`.\n - `--target_platform=win32`: Pass the target platform and override the host `platform`. Valid values are `linux`, `darwin`, `win32`, `sunos`, `freebsd`, `openbsd`, and `aix`.\n\nBoth `--build-from-source` and `--fallback-to-build` can be passed alone or they can provide values. You can pass `--fallback-to-build=false` to override the option as declared in package.json. In addition to being able to pass `--build-from-source` you can also pass `--build-from-source=myapp` where `myapp` is the name of your module.\n\nFor example: `npm install --build-from-source=myapp`. This is useful if:\n\n - `myapp` is referenced in the package.json of a larger app and therefore `myapp` is being installed as a dependency with `npm install`.\n - The larger app also depends on other modules installed with `node-pre-gyp`\n - You only want to trigger a source compile for `myapp` and the other modules.\n\n### Configuring\n\nThis is a guide to configuring your module to use node-pre-gyp.\n\n#### 1) Add new entries to your `package.json`\n\n - Add `node-pre-gyp` to `dependencies`\n - Add `aws-sdk` as a `devDependency`\n - Add a custom `install` script\n - Declare a `binary` object\n\nThis looks like:\n\n```js\n \"dependencies\" : {\n \"node-pre-gyp\": \"0.6.x\"\n },\n \"devDependencies\": {\n \"aws-sdk\": \"2.x\"\n }\n \"scripts\": {\n \"install\": \"node-pre-gyp install --fallback-to-build\"\n },\n \"binary\": {\n \"module_name\": \"your_module\",\n \"module_path\": \"./lib/binding/\",\n \"host\": \"https://your_module.s3-us-west-1.amazonaws.com\"\n }\n```\n\nFor a full example see [node-addon-examples's package.json](https://github.com/springmeyer/node-addon-example/blob/master/package.json).\n\nLet's break this down:\n\n - Dependencies need to list `node-pre-gyp`\n - Your devDependencies should list `aws-sdk` so that you can run `node-pre-gyp publish` locally or a CI system. We recommend using `devDependencies` only since `aws-sdk` is large and not needed for `node-pre-gyp install` since it only uses http to fetch binaries\n - Your `scripts` section should override the `install` target with `\"install\": \"node-pre-gyp install --fallback-to-build\"`. This allows node-pre-gyp to be used instead of the default npm behavior of always source compiling with `node-gyp` directly.\n - Your package.json should contain a `binary` section describing key properties you provide to allow node-pre-gyp to package optimally. They are detailed below.\n\nNOte: in the past we recommended putting `node-pre-gyp` in the `bundledDependencies`, but we no longer recommend this. In the past there were npm bugs (with node versions 0.10.x) that could lead to node-pre-gyp not being available at the right time during install (unless we bundled). This should no longer be the case. Also, for a time we recommended using `\"preinstall\": \"npm install node-pre-gyp\"` as an alternative method to avoid needing to bundle. But this did not behave predictably across all npm versions - see https://github.com/mapbox/node-pre-gyp/issues/260 for the details. So we do not recommend using `preinstall` to install `node-pre-gyp`. More history on this at https://github.com/strongloop/fsevents/issues/157#issuecomment-265545908.\n\n##### The `binary` object has three required properties\n\n###### module_name\n\nThe name of your native node module. This value must:\n\n - Match the name passed to [the NODE_MODULE macro](http://nodejs.org/api/addons.html#addons_hello_world)\n - Must be a valid C variable name (e.g. it cannot contain `-`)\n - Should not include the `.node` extension.\n\n###### module_path\n\nThe location your native module is placed after a build. This should be an empty directory without other Javascript files. This entire directory will be packaged in the binary tarball. When installing from a remote package this directory will be overwritten with the contents of the tarball.\n\nNote: This property supports variables based on [Versioning](#versioning).\n\n###### host\n\nA url to the remote location where you've published tarball binaries (must be `https` not `http`).\n\nIt is highly recommended that you use Amazon S3. The reasons are:\n\n - Various node-pre-gyp commands like `publish` and `info` only work with an S3 host.\n - S3 is a very solid hosting platform for distributing large files.\n - We provide detail documentation for using [S3 hosting](#s3-hosting) with node-pre-gyp.\n\nWhy then not require S3? Because while some applications using node-pre-gyp need to distribute binaries as large as 20-30 MB, others might have very small binaries and might wish to store them in a GitHub repo. This is not recommended, but if an author really wants to host in a non-S3 location then it should be possible.\n\nIt should also be mentioned that there is an optional and entirely separate npm module called [node-pre-gyp-github](https://github.com/bchr02/node-pre-gyp-github) which is intended to complement node-pre-gyp and be installed along with it. It provides the ability to store and publish your binaries within your repositories GitHub Releases if you would rather not use S3 directly. Installation and usage instructions can be found [here](https://github.com/bchr02/node-pre-gyp-github), but the basic premise is that instead of using the ```node-pre-gyp publish``` command you would use ```node-pre-gyp-github publish```.\n\n##### The `binary` object has two optional properties\n\n###### remote_path\n\nIt **is recommended** that you customize this property. This is an extra path to use for publishing and finding remote tarballs. The default value for `remote_path` is `\"\"` meaning that if you do not provide it then all packages will be published at the base of the `host`. It is recommended to provide a value like `./{name}/v{version}` to help organize remote packages in the case that you choose to publish multiple node addons to the same `host`.\n\nNote: This property supports variables based on [Versioning](#versioning).\n\n###### package_name\n\nIt is **not recommended** to override this property unless you are also overriding the `remote_path`. This is the versioned name of the remote tarball containing the binary `.node` module and any supporting files you've placed inside the `module_path` directory. Unless you specify `package_name` in your `package.json` then it defaults to `{module_name}-v{version}-{node_abi}-{platform}-{arch}.tar.gz` which allows your binary to work across node versions, platforms, and architectures. If you are using `remote_path` that is also versioned by `./{module_name}/v{version}` then you could remove these variables from the `package_name` and just use: `{node_abi}-{platform}-{arch}.tar.gz`. Then your remote tarball will be looked up at, for example, `https://example.com/your-module/v0.1.0/node-v11-linux-x64.tar.gz`.\n\nAvoiding the version of your module in the `package_name` and instead only embedding in a directory name can be useful when you want to make a quick tag of your module that does not change any C++ code. In this case you can just copy binaries to the new version behind the scenes like:\n\n```sh\naws s3 sync --acl public-read s3://mapbox-node-binary/sqlite3/v3.0.3/ s3://mapbox-node-binary/sqlite3/v3.0.4/\n```\n\nNote: This property supports variables based on [Versioning](#versioning).\n\n#### 2) Add a new target to binding.gyp\n\n`node-pre-gyp` calls out to `node-gyp` to compile the module and passes variables along like [module_name](#module_name) and [module_path](#module_path).\n\nA new target must be added to `binding.gyp` that moves the compiled `.node` module from `./build/Release/module_name.node` into the directory specified by `module_path`.\n\nAdd a target like this at the end of your `targets` list:\n\n```js\n {\n \"target_name\": \"action_after_build\",\n \"type\": \"none\",\n \"dependencies\": [ \"<(module_name)\" ],\n \"copies\": [\n {\n \"files\": [ \"<(PRODUCT_DIR)/<(module_name).node\" ],\n \"destination\": \"<(module_path)\"\n }\n ]\n }\n```\n\nFor a full example see [node-addon-example's binding.gyp](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/binding.gyp).\n\n#### 3) Dynamically require your `.node`\n\nInside the main js file that requires your addon module you are likely currently doing:\n\n```js\nvar binding = require('../build/Release/binding.node');\n```\n\nor:\n\n```js\nvar bindings = require('./bindings')\n```\n\nChange those lines to:\n\n```js\nvar binary = require('node-pre-gyp');\nvar path = require('path');\nvar binding_path = binary.find(path.resolve(path.join(__dirname,'./package.json')));\nvar binding = require(binding_path);\n```\n\nFor a full example see [node-addon-example's index.js](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/index.js#L1-L4)\n\n#### 4) Build and package your app\n\nNow build your module from source:\n\n npm install --build-from-source\n\nThe `--build-from-source` tells `node-pre-gyp` to not look for a remote package and instead dispatch to node-gyp to build.\n\nNow `node-pre-gyp` should now also be installed as a local dependency so the command line tool it offers can be found at `./node_modules/.bin/node-pre-gyp`.\n\n#### 5) Test\n\nNow `npm test` should work just as it did before.\n\n#### 6) Publish the tarball\n\nThen package your app:\n\n ./node_modules/.bin/node-pre-gyp package\n\nOnce packaged, now you can publish:\n\n ./node_modules/.bin/node-pre-gyp publish\n\nCurrently the `publish` command pushes your binary to S3. This requires:\n\n - You have installed `aws-sdk` with `npm install aws-sdk`\n - You have created a bucket already.\n - The `host` points to an S3 http or https endpoint.\n - You have configured node-pre-gyp to read your S3 credentials (see [S3 hosting](#s3-hosting) for details).\n\nYou can also host your binaries elsewhere. To do this requires:\n\n - You manually publish the binary created by the `package` command to an `https` endpoint\n - Ensure that the `host` value points to your custom `https` endpoint.\n\n#### 7) Automate builds\n\nNow you need to publish builds for all the platforms and node versions you wish to support. This is best automated.\n\n - See [Appveyor Automation](#appveyor-automation) for how to auto-publish builds on Windows.\n - See [Travis Automation](#travis-automation) for how to auto-publish builds on OS X and Linux.\n\n#### 8) You're done!\n\nNow publish your module to the npm registry. Users will now be able to install your module from a binary.\n\nWhat will happen is this:\n\n1. `npm install <your package>` will pull from the npm registry\n2. npm will run the `install` script which will call out to `node-pre-gyp`\n3. `node-pre-gyp` will fetch the binary `.node` module and unpack in the right place\n4. Assuming that all worked, you are done\n\nIf a a binary was not available for a given platform and `--fallback-to-build` was used then `node-gyp rebuild` will be called to try to source compile the module.\n\n## N-API Considerations\n\n[N-API](https://nodejs.org/api/n-api.html#n_api_n_api) is an ABI-stable alternative to previous technologies such as [nan](https://github.com/nodejs/nan) which are tied to a specific Node runtime engine. N-API is Node runtime engine agnostic and guarantees modules created today will continue to run, without changes, into the future.\n\nUsing `node-pre-gyp` with N-API projects requires a handful of additional configuration values and imposes some additional requirements.\n\nThe most significant difference is that an N-API module can be coded to target multiple N-API versions. Therefore, an N-API module must declare in its `package.json` file which N-API versions the module is designed to run against. In addition, since multiple builds may be required for a single module, path and file names must be specified in way that avoids naming conflicts.\n\n### The `napi_versions` array property\n\nAn N-API modules must declare in its `package.json` file, the N-API versions the module is intended to support. This is accomplished by including an `napi-versions` array property in the `binary` object. For example:\n\n```js\n\"binary\": {\n \"module_name\": \"your_module\",\n \"module_path\": \"your_module_path\",\n \"host\": \"https://your_bucket.s3-us-west-1.amazonaws.com\",\n \"napi_versions\": [1,3]\n }\n```\n\nIf the `napi_versions` array property is *not* present, `node-pre-gyp` operates as it always has. Including the `napi_versions` array property instructs `node-pre-gyp` that this is a N-API module build.\n\nWhen the `napi_versions` array property is present, `node-pre-gyp` fires off multiple operations, one for each of the N-API versions in the array. In the example above, two operations are initiated, one for N-API version 1 and second for N-API version 3. How this version number is communicated is described next.\n\n### The `napi_build_version` value\n\nFor each of the N-API module operations `node-pre-gyp` initiates, it ensures that the `napi_build_version` is set appropriately.\n\nThis value is of importance in two areas:\n\n1. The C/C++ code which needs to know against which N-API version it should compile.\n2. `node-pre-gyp` itself which must assign appropriate path and file names to avoid collisions.\n\n### Defining `NAPI_BUILD_VERSION` for the C/C++ code\n\nThe `napi_build_version` value is communicated to the C/C++ code by adding this code to the `binding.gyp` file:\n\n```\n\"defines\": [\n \"NAPI_BUILD_VERSION=<(napi_build_version)\",\n]\n```\n\nThis ensures that `NAPI_BUILD_VERSION`, an integer value, is declared appropriately to the C/C++ code for each build.\n\n### Path and file naming requirements in `package.json`\n\nSince `node-pre-gyp` fires off multiple operations for each request, it is essential that path and file names be created in such a way as to avoid collisions. This is accomplished by imposing additional path and file naming requirements.\n\nSpecifically, when performing N-API builds, the `{napi_build_version}` text substitution string *must* be present in the `module_path` property. In addition, the `{napi_build_version}` text substitution string *must* be present in either the `remote_path` or `package_name` property. (No problem if it's in both.)\n\nHere's an example:\n\n```js\n\"binary\": {\n \"module_name\": \"your_module\",\n \"module_path\": \"./lib/binding/napi-v{napi_build_version}\",\n \"remote_path\": \"./{module_name}/v{version}/{configuration}/\",\n \"package_name\": \"{platform}-{arch}-napi-v{napi_build_version}.tar.gz\",\n \"host\": \"https://your_bucket.s3-us-west-1.amazonaws.com\",\n \"napi_versions\": [1,3]\n }\n```\n\n### Two additional configuration values\n\nFor those who need them in legacy projects, two additional configuration values are available for all builds.\n\n1. `napi_version` If N-API is supported by the currently executing Node instance, this value is the N-API version number supported by Node. If N-API is not supported, this value is an empty string.\n\n2. `node_abi_napi` If the value returned for `napi_version` is non empty, this value is `'napi'`. If the value returned for `napi_version` is empty, this value is the value returned for `node_abi`.\n\nThese values are present for use in the `binding.gyp` file and may be used as `{napi_version}` and `{node_abi_napi}` for text substituion in the `binary` properties of the `package.json` file.\n\n## S3 Hosting\n\nYou can host wherever you choose but S3 is cheap, `node-pre-gyp publish` expects it, and S3 can be integrated well with [Travis.ci](http://travis-ci.org) to automate builds for OS X and Ubuntu, and with [Appveyor](http://appveyor.com) to automate builds for Windows. Here is an approach to do this:\n\nFirst, get setup locally and test the workflow:\n\n#### 1) Create an S3 bucket\n\nAnd have your **key** and **secret key** ready for writing to the bucket.\n\nIt is recommended to create a IAM user with a policy that only gives permissions to the specific bucket you plan to publish to. This can be done in the [IAM console](https://console.aws.amazon.com/iam/) by: 1) adding a new user, 2) choosing `Attach User Policy`, 3) Using the `Policy Generator`, 4) selecting `Amazon S3` for the service, 5) adding the actions: `DeleteObject`, `GetObject`, `GetObjectAcl`, `ListBucket`, `PutObject`, `PutObjectAcl`, 6) adding an ARN of `arn:aws:s3:::bucket/*` (replacing `bucket` with your bucket name), and finally 7) clicking `Add Statement` and saving the policy. It should generate a policy like:\n\n```js\n{\n \"Version\": \"2012-10-17\",\n \"Statement\": [\n {\n \"Sid\": \"Stmt1394587197000\",\n \"Effect\": \"Allow\",\n \"Action\": [\n \"s3:DeleteObject\",\n \"s3:GetObject\",\n \"s3:GetObjectAcl\",\n \"s3:ListBucket\",\n \"s3:PutObject\",\n \"s3:PutObjectAcl\"\n ],\n \"Resource\": [\n \"arn:aws:s3:::node-pre-gyp-tests/*\"\n ]\n }\n ]\n}\n```\n\n#### 2) Install node-pre-gyp\n\nEither install it globally:\n\n npm install node-pre-gyp -g\n\nOr put the local version on your PATH\n\n export PATH=`pwd`/node_modules/.bin/:$PATH\n\n#### 3) Configure AWS credentials\n\nThere are several ways to do this.\n\nYou can use any of the methods described at http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html.\n\nOr you can create a `~/.node_pre_gyprc`\n\nOr pass options in any way supported by [RC](https://github.com/dominictarr/rc#standards)\n\nA `~/.node_pre_gyprc` looks like:\n\n```js\n{\n \"accessKeyId\": \"xxx\",\n \"secretAccessKey\": \"xxx\"\n}\n```\n\nAnother way is to use your environment:\n\n export node_pre_gyp_accessKeyId=xxx\n export node_pre_gyp_secretAccessKey=xxx\n\nYou may also need to specify the `region` if it is not explicit in the `host` value you use. The `bucket` can also be specified but it is optional because `node-pre-gyp` will detect it from the `host` value.\n\n#### 4) Package and publish your build\n\nInstall the `aws-sdk`:\n\n npm install aws-sdk\n\nThen publish:\n\n node-pre-gyp package publish\n\nNote: if you hit an error like `Hostname/IP doesn't match certificate's altnames` it may mean that you need to provide the `region` option in your config.\n\n## Appveyor Automation\n\n[Appveyor](http://www.appveyor.com/) can build binaries and publish the results per commit and supports:\n\n - Windows Visual Studio 2013 and related compilers\n - Both 64 bit (x64) and 32 bit (x86) build configurations\n - Multiple Node.js versions\n\nFor an example of doing this see [node-sqlite3's appveyor.yml](https://github.com/mapbox/node-sqlite3/blob/master/appveyor.yml).\n\nBelow is a guide to getting set up:\n\n#### 1) Create a free Appveyor account\n\nGo to https://ci.appveyor.com/signup/free and sign in with your GitHub account.\n\n#### 2) Create a new project\n\nGo to https://ci.appveyor.com/projects/new and select the GitHub repo for your module\n\n#### 3) Add appveyor.yml and push it\n\nOnce you have committed an `appveyor.yml` ([appveyor.yml reference](http://www.appveyor.com/docs/appveyor-yml)) to your GitHub repo and pushed it AppVeyor should automatically start building your project.\n\n#### 4) Create secure variables\n\nEncrypt your S3 AWS keys by going to <https://ci.appveyor.com/tools/encrypt> and hitting the `encrypt` button.\n\nThen paste the result into your `appveyor.yml`\n\n```yml\nenvironment:\n node_pre_gyp_accessKeyId:\n secure: Dn9HKdLNYvDgPdQOzRq/DqZ/MPhjknRHB1o+/lVU8MA=\n node_pre_gyp_secretAccessKey:\n secure: W1rwNoSnOku1r+28gnoufO8UA8iWADmL1LiiwH9IOkIVhDTNGdGPJqAlLjNqwLnL\n```\n\nNOTE: keys are per account but not per repo (this is difference than Travis where keys are per repo but not related to the account used to encrypt them).\n\n#### 5) Hook up publishing\n\nJust put `node-pre-gyp package publish` in your `appveyor.yml` after `npm install`.\n\n#### 6) Publish when you want\n\nYou might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:\n\n SET CM=%APPVEYOR_REPO_COMMIT_MESSAGE%\n if not \"%CM%\" == \"%CM:[publish binary]=%\" node-pre-gyp --msvs_version=2013 publish\n\nIf your commit message contains special characters (e.g. `&`) this method might fail. An alternative is to use PowerShell, which gives you additional possibilities, like ignoring case by using `ToLower()`:\n\n ps: if($env:APPVEYOR_REPO_COMMIT_MESSAGE.ToLower().Contains('[publish binary]')) { node-pre-gyp --msvs_version=2013 publish }\n\nRemember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package.\n\n## Travis Automation\n\n[Travis](https://travis-ci.org/) can push to S3 after a successful build and supports both:\n\n - Ubuntu Precise and OS X (64 bit)\n - Multiple Node.js versions\n\nFor an example of doing this see [node-add-example's .travis.yml](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/.travis.yml).\n\nNote: if you need 32 bit binaries, this can be done from a 64 bit Travis machine. See [the node-sqlite3 scripts for an example of doing this](https://github.com/mapbox/node-sqlite3/blob/bae122aa6a2b8a45f6b717fab24e207740e32b5d/scripts/build_against_node.sh#L54-L74).\n\nBelow is a guide to getting set up:\n\n#### 1) Install the Travis gem\n\n gem install travis\n\n#### 2) Create secure variables\n\nMake sure you run this command from within the directory of your module.\n\nUse `travis-encrypt` like:\n\n travis encrypt node_pre_gyp_accessKeyId=${node_pre_gyp_accessKeyId}\n travis encrypt node_pre_gyp_secretAccessKey=${node_pre_gyp_secretAccessKey}\n\nThen put those values in your `.travis.yml` like:\n\n```yaml\nenv:\n global:\n - secure: F+sEL/v56CzHqmCSSES4pEyC9NeQlkoR0Gs/ZuZxX1ytrj8SKtp3MKqBj7zhIclSdXBz4Ev966Da5ctmcTd410p0b240MV6BVOkLUtkjZJyErMBOkeb8n8yVfSoeMx8RiIhBmIvEn+rlQq+bSFis61/JkE9rxsjkGRZi14hHr4M=\n - secure: o2nkUQIiABD139XS6L8pxq3XO5gch27hvm/gOdV+dzNKc/s2KomVPWcOyXNxtJGhtecAkABzaW8KHDDi5QL1kNEFx6BxFVMLO8rjFPsMVaBG9Ks6JiDQkkmrGNcnVdxI/6EKTLHTH5WLsz8+J7caDBzvKbEfTux5EamEhxIWgrI=\n```\n\nMore details on Travis encryption at http://about.travis-ci.org/docs/user/encryption-keys/.\n\n#### 3) Hook up publishing\n\nJust put `node-pre-gyp package publish` in your `.travis.yml` after `npm install`.\n\n##### OS X publishing\n\nIf you want binaries for OS X in addition to linux you can enable [multi-os for Travis](http://docs.travis-ci.com/user/multi-os/#Setting-.travis.yml)\n\nUse a configuration like:\n\n```yml\n\nlanguage: cpp\n\nos:\n- linux\n- osx\n\nenv:\n matrix:\n - NODE_VERSION=\"4\"\n - NODE_VERSION=\"6\"\n\nbefore_install:\n- rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm\n- source ~/.nvm/nvm.sh\n- nvm install $NODE_VERSION\n- nvm use $NODE_VERSION\n```\n\nSee [Travis OS X Gotchas](#travis-os-x-gotchas) for why we replace `language: node_js` and `node_js:` sections with `language: cpp` and a custom matrix.\n\nAlso create platform specific sections for any deps that need install. For example if you need libpng:\n\n```yml\n- if [ $(uname -s) == 'Linux' ]; then apt-get install libpng-dev; fi;\n- if [ $(uname -s) == 'Darwin' ]; then brew install libpng; fi;\n```\n\nFor detailed multi-OS examples see [node-mapnik](https://github.com/mapnik/node-mapnik/blob/master/.travis.yml) and [node-sqlite3](https://github.com/mapbox/node-sqlite3/blob/master/.travis.yml).\n\n##### Travis OS X Gotchas\n\nFirst, unlike the Travis Linux machines, the OS X machines do not put `node-pre-gyp` on PATH by default. To do so you will need to:\n\n```sh\nexport PATH=$(pwd)/node_modules/.bin:${PATH}\n```\n\nSecond, the OS X machines do not support using a matrix for installing different Node.js versions. So you need to bootstrap the installation of Node.js in a cross platform way.\n\nBy doing:\n\n```yml\nenv:\n matrix:\n - NODE_VERSION=\"4\"\n - NODE_VERSION=\"6\"\n\nbefore_install:\n - rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm\n - source ~/.nvm/nvm.sh\n - nvm install $NODE_VERSION\n - nvm use $NODE_VERSION\n```\n\nYou can easily recreate the previous behavior of this matrix:\n\n```yml\nnode_js:\n - \"4\"\n - \"6\"\n```\n\n#### 4) Publish when you want\n\nYou might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:\n\n COMMIT_MESSAGE=$(git log --format=%B --no-merges -n 1 | tr -d '\\n')\n if [[ ${COMMIT_MESSAGE} =~ \"[publish binary]\" ]]; then node-pre-gyp publish; fi;\n\nThen you can trigger new binaries to be built like:\n\n git commit -a -m \"[publish binary]\"\n\nOr, if you don't have any changes to make simply run:\n\n git commit --allow-empty -m \"[publish binary]\"\n\nWARNING: if you are working in a pull request and publishing binaries from there then you will want to avoid double publishing when Travis CI builds both the `push` and `pr`. You only want to run the publish on the `push` commit. See https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/is_pr_merge.sh which is called from https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/publish.sh for an example of how to do this.\n\nRemember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package. To automate the publishing of your entire package to npm on Travis see http://about.travis-ci.org/docs/user/deployment/npm/\n\n# Versioning\n\nThe `binary` properties of `module_path`, `remote_path`, and `package_name` support variable substitution. The strings are evaluated by `node-pre-gyp` depending on your system and any custom build flags you passed.\n\n - `node_abi`: The node C++ `ABI` number. This value is available in Javascript as `process.versions.modules` as of [`>= v0.10.4 >= v0.11.7`](https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e) and in C++ as the `NODE_MODULE_VERSION` define much earlier. For versions of Node before this was available we fallback to the V8 major and minor version.\n - `platform` matches node's `process.platform` like `linux`, `darwin`, and `win32` unless the user passed the `--target_platform` option to override.\n - `arch` matches node's `process.arch` like `x64` or `ia32` unless the user passes the `--target_arch` option to override.\n - `libc` matches `require('detect-libc').family` like `glibc` or `musl` unless the user passes the `--target_libc` option to override.\n - `configuration` - Either 'Release' or 'Debug' depending on if `--debug` is passed during the build.\n - `module_name` - the `binary.module_name` attribute from `package.json`.\n - `version` - the semver `version` value for your module from `package.json` (NOTE: ignores the `semver.build` property).\n - `major`, `minor`, `patch`, and `prelease` match the individual semver values for your module's `version`\n - `build` - the sevmer `build` value. For example it would be `this.that` if your package.json `version` was `v1.0.0+this.that`\n - `prerelease` - the semver `prerelease` value. For example it would be `alpha.beta` if your package.json `version` was `v1.0.0-alpha.beta`\n\nThe options are visible in the code at <https://github.com/mapbox/node-pre-gyp/blob/612b7bca2604508d881e1187614870ba19a7f0c5/lib/util/versioning.js#L114-L127>\n\n# Download binary files from a mirror\n\nS3 is broken in China for the well known reason.\n\nUsing the `npm` config argument: `--{module_name}_binary_host_mirror` can download binary files through a mirror.\n\ne.g.: Install [v8-profiler](https://www.npmjs.com/package/v8-profiler) from `npm`.\n\n```bash\n$ npm install v8-profiler --profiler_binary_host_mirror=https://npm.taobao.org/mirrors/node-inspector/\n```\n#is-regex <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\n[![browser support][9]][10]\n\nIs this value a JS regex?\nThis module works cross-realm/iframe, and despite ES6 @@toStringTag.\n\n## Example\n\n```js\nvar isRegex = require('is-regex');\nvar assert = require('assert');\n\nassert.notOk(isRegex(undefined));\nassert.notOk(isRegex(null));\nassert.notOk(isRegex(false));\nassert.notOk(isRegex(true));\nassert.notOk(isRegex(42));\nassert.notOk(isRegex('foo'));\nassert.notOk(isRegex(function () {}));\nassert.notOk(isRegex([]));\nassert.notOk(isRegex({}));\n\nassert.ok(isRegex(/a/g));\nassert.ok(isRegex(new RegExp('a', 'g')));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[1]: https://npmjs.org/package/is-regex\n[2]: http://versionbadg.es/ljharb/is-regex.svg\n[3]: https://travis-ci.org/ljharb/is-regex.svg\n[4]: https://travis-ci.org/ljharb/is-regex\n[5]: https://david-dm.org/ljharb/is-regex.svg\n[6]: https://david-dm.org/ljharb/is-regex\n[7]: https://david-dm.org/ljharb/is-regex/dev-status.svg\n[8]: https://david-dm.org/ljharb/is-regex#info=devDependencies\n[9]: https://ci.testling.com/ljharb/is-regex.png\n[10]: https://ci.testling.com/ljharb/is-regex\n[11]: https://nodei.co/npm/is-regex.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/is-regex.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/is-regex.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=is-regex\n## Pure JS character encoding conversion [](https://travis-ci.org/ashtuchkin/iconv-lite)\n\n * Doesn't need native code compilation. Works on Windows and in sandboxed environments like [Cloud9](http://c9.io).\n * Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), \n [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.\n * Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).\n * Intuitive encode/decode API\n * Streaming support for Node v0.10+\n * [Deprecated] Can extend Node.js primitives (buffers, streams) to support all iconv-lite encodings.\n * In-browser usage via [Browserify](https://github.com/substack/node-browserify) (~180k gzip compressed with Buffer shim included).\n * Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.\n * React Native is supported (need to explicitly `npm install` two more modules: `buffer` and `stream`).\n * License: MIT.\n\n[](https://npmjs.org/packages/iconv-lite/)\n\n## Usage\n### Basic API\n```javascript\nvar iconv = require('iconv-lite');\n\n// Convert from an encoded buffer to js string.\nstr = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');\n\n// Convert from js string to an encoded buffer.\nbuf = iconv.encode(\"Sample input string\", 'win1251');\n\n// Check if encoding is supported\niconv.encodingExists(\"us-ascii\")\n```\n\n### Streaming API (Node v0.10+)\n```javascript\n\n// Decode stream (from binary stream to js strings)\nhttp.createServer(function(req, res) {\n var converterStream = iconv.decodeStream('win1251');\n req.pipe(converterStream);\n\n converterStream.on('data', function(str) {\n console.log(str); // Do something with decoded strings, chunk-by-chunk.\n });\n});\n\n// Convert encoding streaming example\nfs.createReadStream('file-in-win1251.txt')\n .pipe(iconv.decodeStream('win1251'))\n .pipe(iconv.encodeStream('ucs2'))\n .pipe(fs.createWriteStream('file-in-ucs2.txt'));\n\n// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.\nhttp.createServer(function(req, res) {\n req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {\n assert(typeof body == 'string');\n console.log(body); // full request body string\n });\n});\n```\n\n### [Deprecated] Extend Node.js own encodings\n> NOTE: This doesn't work on latest Node versions. See [details](https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility).\n\n```javascript\n// After this call all Node basic primitives will understand iconv-lite encodings.\niconv.extendNodeEncodings();\n\n// Examples:\nbuf = new Buffer(str, 'win1251');\nbuf.write(str, 'gbk');\nstr = buf.toString('latin1');\nassert(Buffer.isEncoding('iso-8859-15'));\nBuffer.byteLength(str, 'us-ascii');\n\nhttp.createServer(function(req, res) {\n req.setEncoding('big5');\n req.collect(function(err, body) {\n console.log(body);\n });\n});\n\nfs.createReadStream(\"file.txt\", \"shift_jis\");\n\n// External modules are also supported (if they use Node primitives, which they probably do).\nrequest = require('request');\nrequest({\n url: \"http://github.com/\", \n encoding: \"cp932\"\n});\n\n// To remove extensions\niconv.undoExtendNodeEncodings();\n```\n\n## Supported encodings\n\n * All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.\n * Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap.\n * All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, \n IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. \n Aliases like 'latin1', 'us-ascii' also supported.\n * All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.\n\nSee [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).\n\nMost singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!\n\nMultibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!\n\n## Encoding/decoding speed\n\nComparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). \nNote: your results may vary, so please always check on your hardware.\n\n operation iconv@2.1.4 iconv-lite@0.4.7\n ----------------------------------------------------------\n encode('win1251') ~96 Mb/s ~320 Mb/s\n decode('win1251') ~95 Mb/s ~246 Mb/s\n\n## BOM handling\n\n * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options\n (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).\n A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.\n * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.\n * Encoding: No BOM added, unless overridden by `addBOM: true` option.\n\n## UTF-16 Encodings\n\nThis library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be\nsmart about endianness in the following ways:\n * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be \n overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.\n * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.\n\n## Other notes\n\nWhen decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding). \nUntranslatable characters are set to � or ?. No transliteration is currently supported. \nNode versions 0.10.31 and 0.11.13 are buggy, don't use them (see #65, #77). \n\n## Testing\n\n```bash\n$ git clone git@github.com:ashtuchkin/iconv-lite.git\n$ cd iconv-lite\n$ npm install\n$ npm test\n \n$ # To view performance:\n$ node test/performance.js\n\n$ # To view test coverage:\n$ npm run coverage\n$ open coverage/lcov-report/index.html\n```\n# EventSource [](http://browsenpm.org/package/eventsource)[](https://travis-ci.org/EventSource/eventsource)[](http://npm-stat.com/charts.html?package=eventsource&from=2015-09-01)[](https://david-dm.org/EventSource/eventsource)\n\nThis library is a pure JavaScript implementation of the [EventSource](https://html.spec.whatwg.org/multipage/server-sent-events.html#server-sent-events) client. The API aims to be W3C compatible.\n\nYou can use it with Node.js or as a browser polyfill for\n[browsers that don't have native `EventSource` support](http://caniuse.com/#feat=eventsource).\n\n## Install\n\n npm install eventsource\n\n## Example\n\n npm install\n node ./example/sse-server.js\n node ./example/sse-client.js # Node.js client\n open http://localhost:8080 # Browser client - both native and polyfill\n curl http://localhost:8080/sse # Enjoy the simplicity of SSE\n\n## Browser Polyfill\n\nJust add `example/eventsource-polyfill.js` file to your web page:\n\n```html\n<script src=/eventsource-polyfill.js></script>\n```\n\nNow you will have two global constructors:\n\n```javascript\nwindow.EventSourcePolyfill\nwindow.EventSource // Unchanged if browser has defined it. Otherwise, same as window.EventSourcePolyfill\n```\n\nIf you're using [webpack](https://webpack.github.io/) or [browserify](http://browserify.org/)\nyou can of course build your own. (The `example/eventsource-polyfill.js` is built with webpack).\n\n## Extensions to the W3C API\n\n### Setting HTTP request headers\n\nYou can define custom HTTP headers for the initial HTTP request. This can be useful for e.g. sending cookies\nor to specify an initial `Last-Event-ID` value.\n\nHTTP headers are defined by assigning a `headers` attribute to the optional `eventSourceInitDict` argument:\n\n```javascript\nvar eventSourceInitDict = {headers: {'Cookie': 'test=test'}};\nvar es = new EventSource(url, eventSourceInitDict);\n```\n\n### Allow unauthorized HTTPS requests\n\nBy default, https requests that cannot be authorized will cause the connection to fail and an exception\nto be emitted. You can override this behaviour, along with other https options:\n\n```javascript\nvar eventSourceInitDict = {https: {rejectUnauthorized: false}};\nvar es = new EventSource(url, eventSourceInitDict);\n```\n\nNote that for Node.js < v0.10.x this option has no effect - unauthorized HTTPS requests are *always* allowed.\n\n### HTTP status code on error events\n\nUnauthorized and redirect error status codes (for example 401, 403, 301, 307) are available in the `status` property in the error event.\n\n```javascript\nes.onerror = function (err) {\n if (err) {\n if (err.status === 401 || err.status === 403) {\n console.log('not authorized');\n }\n }\n};\n```\n\n### HTTP/HTTPS proxy\n\nYou can define a `proxy` option for the HTTP request to be used. This is typically useful if you are behind a corporate firewall.\n\n```javascript\nvar es = new EventSource(url, {proxy: 'http://your.proxy.com'});\n```\n\n## License\n\nMIT-licensed. See LICENSE\n# Select Hose\n\n[](http://travis-ci.org/indutny/select-hose)\n[](http://badge.fury.io/js/select-hose)\n\nHose the data to the handler\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\nnode-html-entities\n==================\n\n[](https://travis-ci.org/mdevils/node-html-entities)\n[](https://coveralls.io/github/mdevils/node-html-entities?branch=master)\n\nFast html entities library.\n\nInstallation\n------------\n\n```bash\n$ npm install html-entities\n```\n\nUsage\n-----\n\n**XML entities**\n\nHTML validity and XSS attack prevention you can achieve from XmlEntities class.\n\n```javascript\nconst Entities = require('html-entities').XmlEntities;\n\nconst entities = new Entities();\n\nconsole.log(entities.encode('<>\"\\'&©®')); // <>"'&©®\nconsole.log(entities.encodeNonUTF('<>\"\\'&©®')); // <>"'&©®\nconsole.log(entities.encodeNonASCII('<>\"\\'&©®')); // <>\"\\'&©®\nconsole.log(entities.decode('<>"'&©®∆')); // <>\"'&©®∆\n```\n\n**All HTML entities encoding/decoding**\n\n```javascript\nconst Entities = require('html-entities').AllHtmlEntities;\n\nconst entities = new Entities();\n\nconsole.log(entities.encode('<>\"&©®∆')); // <>"&©®∆\nconsole.log(entities.encodeNonUTF('<>\"&©®∆')); // <>"&©®∆\nconsole.log(entities.encodeNonASCII('<>\"&©®∆')); // <>\"&©®∆\nconsole.log(entities.decode('<>"&©®')); // <>\"&©®\n```\n\n**Available classes**\n\n```javascript\nconst XmlEntities = require('html-entities').XmlEntities, // <>\"'& + &#...; decoding\n Html4Entities = require('html-entities').Html4Entities, // HTML4 entities.\n Html5Entities = require('html-entities').Html5Entities, // HTML5 entities.\n AllHtmlEntities = require('html-entities').AllHtmlEntities; // Synonym for HTML5 entities.\n```\n\nSupports four methods for every class:\n\n* encode — encodes, replacing characters to its entity representations. Ignores UTF characters with no entity representation.\n* encodeNonUTF — encodes, replacing characters to its entity representations. Inserts numeric entities for UTF characters.\n* encodeNonASCII — encodes, replacing only non-ASCII characters to its numeric entity representations.\n* decode — decodes, replacing entities to characters. Unknown entities are left as is.\nForge Flash Support\n===================\n\nSocketPool.swf\n--------------\n\nSome special networking features can optionally use a Flash component.\nBuilding the output SWF file requires the [Flex SDK][]. A pre-built component\nis included: `swf/SocketPool.swf`.\n\nBuilding the output SWF requires the `mxmlc` tool from the [Flex SDK][]. If\nthat tools is already installed then look in the `package.json` file for the\ncommands to rebuild it. If you need the SDK installed, there is a npm module that installs it:\n\n npm install\n\nTo build a regular component:\n\n npm run build\n\nAdditional debug support can be built in with the following:\n\n npm run build-debug\n\nPolicy Server\n-------------\n\nFlash support requires the use of a Policy Server.\n\n### Apache Flash Socket Policy Module\n\n[mod_fsp](./mod_fsp) provides an [Apache][] module that can serve up a Flash\nSocket Policy. See `mod_fsp/README` for more details. This module makes it easy\nto modify an [Apache][] server to allow cross domain requests to be made to it.\n\n### Simple Python Policy Server\n\n`policyserver.py` provides a very simple test policy server.\n\n### Simple Node.js Policy Server\n\n`policyserver.js` provides a very simple test policy server. If a server is\nneeded for production environments, please use another option such as perhaps\n[nodejs_socket_policy_server][].\n\n[Apache]: http://httpd.apache.org/\n[Flex SDK]: https://flex.apache.org/\n[nodejs_socket_policy_server]: https://github.com/bichinger/nodejs_socket_policy_server\n# prop-types [](https://travis-ci.org/facebook/prop-types)\n\nRuntime type checking for React props and similar objects.\n\nYou can use prop-types to document the intended types of properties passed to\ncomponents. React (and potentially other libraries—see the checkPropTypes()\nreference below) will check props passed to your components against those\ndefinitions, and warn in development if they don’t match.\n\n## Installation\n\n```shell\nnpm install --save prop-types\n```\n\n## Importing\n\n```js\nimport PropTypes from 'prop-types'; // ES6\nvar PropTypes = require('prop-types'); // ES5 with npm\n```\n\n### CDN\n\nIf you prefer to exclude `prop-types` from your application and use it\nglobally via `window.PropTypes`, the `prop-types` package provides\nsingle-file distributions, which are hosted on the following CDNs:\n\n* [**unpkg**](https://unpkg.com/prop-types/)\n```html\n<!-- development version -->\n<script src=\"https://unpkg.com/prop-types@15.6/prop-types.js\"></script>\n\n<!-- production version -->\n<script src=\"https://unpkg.com/prop-types@15.6/prop-types.min.js\"></script>\n```\n\n* [**cdnjs**](https://cdnjs.com/libraries/prop-types)\n```html\n<!-- development version -->\n<script src=\"https://cdnjs.cloudflare.com/ajax/libs/prop-types/15.6.0/prop-types.js\"></script>\n\n<!-- production version -->\n<script src=\"https://cdnjs.cloudflare.com/ajax/libs/prop-types/15.6.0/prop-types.min.js\"></script>\n```\n\nTo load a specific version of `prop-types` replace `15.6.0` with the version number.\n\n## Usage\n\nPropTypes was originally exposed as part of the React core module, and is\ncommonly used with React components.\nHere is an example of using PropTypes with a React component, which also\ndocuments the different validators provided:\n\n```js\nimport React from 'react';\nimport PropTypes from 'prop-types';\n\nclass MyComponent extends React.Component {\n render() {\n // ... do things with the props\n }\n}\n\nMyComponent.propTypes = {\n // You can declare that a prop is a specific JS primitive. By default, these\n // are all optional.\n optionalArray: PropTypes.array,\n optionalBool: PropTypes.bool,\n optionalFunc: PropTypes.func,\n optionalNumber: PropTypes.number,\n optionalObject: PropTypes.object,\n optionalString: PropTypes.string,\n optionalSymbol: PropTypes.symbol,\n\n // Anything that can be rendered: numbers, strings, elements or an array\n // (or fragment) containing these types.\n optionalNode: PropTypes.node,\n\n // A React element (ie. <MyComponent />).\n optionalElement: PropTypes.element,\n\n // A React element type (ie. MyComponent).\n optionalElementType: PropTypes.elementType,\n\n // You can also declare that a prop is an instance of a class. This uses\n // JS's instanceof operator.\n optionalMessage: PropTypes.instanceOf(Message),\n\n // You can ensure that your prop is limited to specific values by treating\n // it as an enum.\n optionalEnum: PropTypes.oneOf(['News', 'Photos']),\n\n // An object that could be one of many types\n optionalUnion: PropTypes.oneOfType([\n PropTypes.string,\n PropTypes.number,\n PropTypes.instanceOf(Message)\n ]),\n\n // An array of a certain type\n optionalArrayOf: PropTypes.arrayOf(PropTypes.number),\n\n // An object with property values of a certain type\n optionalObjectOf: PropTypes.objectOf(PropTypes.number),\n\n // You can chain any of the above with `isRequired` to make sure a warning\n // is shown if the prop isn't provided.\n\n // An object taking on a particular shape\n optionalObjectWithShape: PropTypes.shape({\n optionalProperty: PropTypes.string,\n requiredProperty: PropTypes.number.isRequired\n }),\n\n // An object with warnings on extra properties\n optionalObjectWithStrictShape: PropTypes.exact({\n optionalProperty: PropTypes.string,\n requiredProperty: PropTypes.number.isRequired\n }),\n\n requiredFunc: PropTypes.func.isRequired,\n\n // A value of any data type\n requiredAny: PropTypes.any.isRequired,\n\n // You can also specify a custom validator. It should return an Error\n // object if the validation fails. Don't `console.warn` or throw, as this\n // won't work inside `oneOfType`.\n customProp: function(props, propName, componentName) {\n if (!/matchme/.test(props[propName])) {\n return new Error(\n 'Invalid prop `' + propName + '` supplied to' +\n ' `' + componentName + '`. Validation failed.'\n );\n }\n },\n\n // You can also supply a custom validator to `arrayOf` and `objectOf`.\n // It should return an Error object if the validation fails. The validator\n // will be called for each key in the array or object. The first two\n // arguments of the validator are the array or object itself, and the\n // current item's key.\n customArrayProp: PropTypes.arrayOf(function(propValue, key, componentName, location, propFullName) {\n if (!/matchme/.test(propValue[key])) {\n return new Error(\n 'Invalid prop `' + propFullName + '` supplied to' +\n ' `' + componentName + '`. Validation failed.'\n );\n }\n })\n};\n```\n\nRefer to the [React documentation](https://facebook.github.io/react/docs/typechecking-with-proptypes.html) for more information.\n\n## Migrating from React.PropTypes\n\nCheck out [Migrating from React.PropTypes](https://facebook.github.io/react/blog/2017/04/07/react-v15.5.0.html#migrating-from-react.proptypes) for details on how to migrate to `prop-types` from `React.PropTypes`.\n\nNote that this blog posts **mentions a codemod script that performs the conversion automatically**.\n\nThere are also important notes below.\n\n## How to Depend on This Package?\n\nFor apps, we recommend putting it in `dependencies` with a caret range.\nFor example:\n\n```js\n \"dependencies\": {\n \"prop-types\": \"^15.5.7\"\n }\n```\n\nFor libraries, we *also* recommend leaving it in `dependencies`:\n\n```js\n \"dependencies\": {\n \"prop-types\": \"^15.5.7\"\n },\n \"peerDependencies\": {\n \"react\": \"^15.5.0\"\n }\n```\n\n**Note:** there are known issues in versions before 15.5.7 so we recommend using it as the minimal version.\n\nMake sure that the version range uses a caret (`^`) and thus is broad enough for npm to efficiently deduplicate packages.\n\nFor UMD bundles of your components, make sure you **don’t** include `PropTypes` in the build. Usually this is done by marking it as an external (the specifics depend on your bundler), just like you do with React.\n\n## Compatibility\n\n### React 0.14\n\nThis package is compatible with **React 0.14.9**. Compared to 0.14.8 (which was released in March of 2016), there are no other changes in 0.14.9, so it should be a painless upgrade.\n\n```shell\n# ATTENTION: Only run this if you still use React 0.14!\nnpm install --save react@^0.14.9 react-dom@^0.14.9\n```\n\n### React 15+\n\nThis package is compatible with **React 15.3.0** and higher.\n\n```\nnpm install --save react@^15.3.0 react-dom@^15.3.0\n```\n\n### What happens on other React versions?\n\nIt outputs warnings with the message below even though the developer doesn’t do anything wrong. Unfortunately there is no solution for this other than updating React to either 15.3.0 or higher, or 0.14.9 if you’re using React 0.14.\n\n## Difference from `React.PropTypes`: Don’t Call Validator Functions\n\nFirst of all, **which version of React are you using**? You might be seeing this message because a component library has updated to use `prop-types` package, but your version of React is incompatible with it. See the [above section](#compatibility) for more details.\n\nAre you using either React 0.14.9 or a version higher than React 15.3.0? Read on.\n\nWhen you migrate components to use the standalone `prop-types`, **all validator functions will start throwing an error if you call them directly**. This makes sure that nobody relies on them in production code, and it is safe to strip their implementations to optimize the bundle size.\n\nCode like this is still fine:\n\n```js\nMyComponent.propTypes = {\n myProp: PropTypes.bool\n};\n```\n\nHowever, code like this will not work with the `prop-types` package:\n\n```js\n// Will not work with `prop-types` package!\nvar errorOrNull = PropTypes.bool(42, 'myProp', 'MyComponent', 'prop');\n```\n\nIt will throw an error:\n\n```\nCalling PropTypes validators directly is not supported by the `prop-types` package.\nUse PropTypes.checkPropTypes() to call them.\n```\n\n(If you see **a warning** rather than an error with this message, please check the [above section about compatibility](#compatibility).)\n\nThis is new behavior, and you will only encounter it when you migrate from `React.PropTypes` to the `prop-types` package. For the vast majority of components, this doesn’t matter, and if you didn’t see [this warning](https://facebook.github.io/react/warnings/dont-call-proptypes.html) in your components, your code is safe to migrate. This is not a breaking change in React because you are only opting into this change for a component by explicitly changing your imports to use `prop-types`. If you temporarily need the old behavior, you can keep using `React.PropTypes` until React 16.\n\n**If you absolutely need to trigger the validation manually**, call `PropTypes.checkPropTypes()`. Unlike the validators themselves, this function is safe to call in production, as it will be replaced by an empty function:\n\n```js\n// Works with standalone PropTypes\nPropTypes.checkPropTypes(MyComponent.propTypes, props, 'prop', 'MyComponent');\n```\nSee below for more info.\n\n**You might also see this error** if you’re calling a `PropTypes` validator from your own custom `PropTypes` validator. In this case, the fix is to make sure that you are passing *all* of the arguments to the inner function. There is a more in-depth explanation of how to fix it [on this page](https://facebook.github.io/react/warnings/dont-call-proptypes.html#fixing-the-false-positive-in-third-party-proptypes). Alternatively, you can temporarily keep using `React.PropTypes` until React 16, as it would still only warn in this case.\n\nIf you use a bundler like Browserify or Webpack, don’t forget to [follow these instructions](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build) to correctly bundle your application in development or production mode. Otherwise you’ll ship unnecessary code to your users.\n\n## PropTypes.checkPropTypes\n\nReact will automatically check the propTypes you set on the component, but if\nyou are using PropTypes without React then you may want to manually call\n`PropTypes.checkPropTypes`, like so:\n\n```js\nconst myPropTypes = {\n name: PropTypes.string,\n age: PropTypes.number,\n // ... define your prop validations\n};\n\nconst props = {\n name: 'hello', // is valid\n age: 'world', // not valid\n};\n\n// Let's say your component is called 'MyComponent'\n\n// Works with standalone PropTypes\nPropTypes.checkPropTypes(myPropTypes, props, 'age', 'MyComponent');\n// This will warn as follows:\n// Warning: Failed prop type: Invalid prop `age` of type `string` supplied to\n// `MyComponent`, expected `number`.\n```\n\n## PropTypes.resetWarningCache()\n\n`PropTypes.checkPropTypes(...)` only `console.error.log(...)`s a given message once. To reset the cache while testing call `PropTypes.resetWarningCache()`\n\n### License\n\nprop-types is [MIT licensed](./LICENSE).\n# core-util-is\n\nThe `util.is*` functions introduced in Node v0.12.\nutil-deprecate\n==============\n### The Node.js `util.deprecate()` function with browser support\n\nIn Node.js, this module simply re-exports the `util.deprecate()` function.\n\nIn the web browser (i.e. via browserify), a browser-specific implementation\nof the `util.deprecate()` function is used.\n\n## API\n\nA `deprecate()` function is the only thing exposed by this module.\n\n``` javascript\n// setup:\nexports.foo = deprecate(foo, 'foo() is deprecated, use bar() instead');\n\n// users see:\nfoo();\n// foo() is deprecated, use bar() instead\nfoo();\nfoo();\n```\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>\n\nPermission is hereby granted, free of charge, to any person\nobtaining a copy of this software and associated documentation\nfiles (the \"Software\"), to deal in the Software without\nrestriction, including without limitation the rights to use,\ncopy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the\nSoftware is furnished to do so, subject to the following\nconditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES\nOF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\nNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT\nHOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,\nWHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\nFROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR\nOTHER DEALINGS IN THE SOFTWARE.\n# collection-visit [](https://www.npmjs.com/package/collection-visit) [](https://npmjs.org/package/collection-visit) [](https://npmjs.org/package/collection-visit) [](https://travis-ci.org/jonschlinkert/collection-visit)\n\n> Visit a method over the items in an object, or map visit over the objects in an array.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save collection-visit\n```\n\n## Usage\n\n```js\nvar visit = require('collection-visit');\n\nvar ctx = {\n data: {},\n set: function (key, value) {\n if (typeof key === 'object') {\n visit(ctx, 'set', key);\n } else {\n ctx.data[key] = value;\n }\n }\n};\n\nctx.set('a', 'a');\nctx.set('b', 'b');\nctx.set('c', 'c');\nctx.set({d: {e: 'f'}});\n\nconsole.log(ctx.data);\n//=> {a: 'a', b: 'b', c: 'c', d: { e: 'f' }};\n```\n\n## About\n\n### Related projects\n\n* [base-methods](https://www.npmjs.com/package/base-methods): base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/jonschlinkert/base-methods) | [homepage](https://github.com/jonschlinkert/base-methods \"base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [map-visit](https://www.npmjs.com/package/map-visit): Map `visit` over an array of objects. | [homepage](https://github.com/jonschlinkert/map-visit \"Map `visit` over an array of objects.\")\n* [object-visit](https://www.npmjs.com/package/object-visit): Call a specified method on each value in the given object. | [homepage](https://github.com/jonschlinkert/object-visit \"Call a specified method on each value in the given object.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 13 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 9 | [doowb](https://github.com/doowb) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 09, 2017._\n# is-date-object <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\n[![browser support][9]][10]\n\nIs this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.\n\n## Example\n\n```js\nvar isDate = require('is-date-object');\nvar assert = require('assert');\n\nassert.notOk(isDate(undefined));\nassert.notOk(isDate(null));\nassert.notOk(isDate(false));\nassert.notOk(isDate(true));\nassert.notOk(isDate(42));\nassert.notOk(isDate('foo'));\nassert.notOk(isDate(function () {}));\nassert.notOk(isDate([]));\nassert.notOk(isDate({}));\nassert.notOk(isDate(/a/g));\nassert.notOk(isDate(new RegExp('a', 'g')));\n\nassert.ok(isDate(new Date()));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[1]: https://npmjs.org/package/is-date-object\n[2]: http://versionbadg.es/ljharb/is-date-object.svg\n[3]: https://travis-ci.org/ljharb/is-date-object.svg\n[4]: https://travis-ci.org/ljharb/is-date-object\n[5]: https://david-dm.org/ljharb/is-date-object.svg\n[6]: https://david-dm.org/ljharb/is-date-object\n[7]: https://david-dm.org/ljharb/is-date-object/dev-status.svg\n[8]: https://david-dm.org/ljharb/is-date-object#info=devDependencies\n[9]: https://ci.testling.com/ljharb/is-date-object.png\n[10]: https://ci.testling.com/ljharb/is-date-object\n[11]: https://nodei.co/npm/is-date-object.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/is-date-object.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/is-date-object.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=is-date-object\n# Form-Data [](https://www.npmjs.com/package/form-data) [](https://gitter.im/form-data/form-data)\n\nA library to create readable ```\"multipart/form-data\"``` streams. Can be used to submit forms and file uploads to other web applications.\n\nThe API of this library is inspired by the [XMLHttpRequest-2 FormData Interface][xhr2-fd].\n\n[xhr2-fd]: http://dev.w3.org/2006/webapi/XMLHttpRequest-2/Overview.html#the-formdata-interface\n\n[](https://travis-ci.org/form-data/form-data)\n[](https://travis-ci.org/form-data/form-data)\n[](https://ci.appveyor.com/project/alexindigo/form-data)\n\n[](https://coveralls.io/github/form-data/form-data?branch=master)\n[](https://david-dm.org/form-data/form-data)\n[](https://www.bithound.io/github/form-data/form-data)\n\n## Install\n\n```\nnpm install --save form-data\n```\n\n## Usage\n\nIn this example we are constructing a form with 3 fields that contain a string,\na buffer and a file stream.\n\n``` javascript\nvar FormData = require('form-data');\nvar fs = require('fs');\n\nvar form = new FormData();\nform.append('my_field', 'my value');\nform.append('my_buffer', new Buffer(10));\nform.append('my_file', fs.createReadStream('/foo/bar.jpg'));\n```\n\nAlso you can use http-response stream:\n\n``` javascript\nvar FormData = require('form-data');\nvar http = require('http');\n\nvar form = new FormData();\n\nhttp.request('http://nodejs.org/images/logo.png', function(response) {\n form.append('my_field', 'my value');\n form.append('my_buffer', new Buffer(10));\n form.append('my_logo', response);\n});\n```\n\nOr @mikeal's [request](https://github.com/request/request) stream:\n\n``` javascript\nvar FormData = require('form-data');\nvar request = require('request');\n\nvar form = new FormData();\n\nform.append('my_field', 'my value');\nform.append('my_buffer', new Buffer(10));\nform.append('my_logo', request('http://nodejs.org/images/logo.png'));\n```\n\nIn order to submit this form to a web application, call ```submit(url, [callback])``` method:\n\n``` javascript\nform.submit('http://example.org/', function(err, res) {\n // res – response object (http.IncomingMessage) //\n res.resume();\n});\n\n```\n\nFor more advanced request manipulations ```submit()``` method returns ```http.ClientRequest``` object, or you can choose from one of the alternative submission methods.\n\n### Custom options\n\nYou can provide custom options, such as `maxDataSize`:\n\n``` javascript\nvar FormData = require('form-data');\n\nvar form = new FormData({ maxDataSize: 20971520 });\nform.append('my_field', 'my value');\nform.append('my_buffer', /* something big */);\n```\n\nList of available options could be found in [combined-stream](https://github.com/felixge/node-combined-stream/blob/master/lib/combined_stream.js#L7-L15)\n\n### Alternative submission methods\n\nYou can use node's http client interface:\n\n``` javascript\nvar http = require('http');\n\nvar request = http.request({\n method: 'post',\n host: 'example.org',\n path: '/upload',\n headers: form.getHeaders()\n});\n\nform.pipe(request);\n\nrequest.on('response', function(res) {\n console.log(res.statusCode);\n});\n```\n\nOr if you would prefer the `'Content-Length'` header to be set for you:\n\n``` javascript\nform.submit('example.org/upload', function(err, res) {\n console.log(res.statusCode);\n});\n```\n\nTo use custom headers and pre-known length in parts:\n\n``` javascript\nvar CRLF = '\\r\\n';\nvar form = new FormData();\n\nvar options = {\n header: CRLF + '--' + form.getBoundary() + CRLF + 'X-Custom-Header: 123' + CRLF + CRLF,\n knownLength: 1\n};\n\nform.append('my_buffer', buffer, options);\n\nform.submit('http://example.com/', function(err, res) {\n if (err) throw err;\n console.log('Done');\n});\n```\n\nForm-Data can recognize and fetch all the required information from common types of streams (```fs.readStream```, ```http.response``` and ```mikeal's request```), for some other types of streams you'd need to provide \"file\"-related information manually:\n\n``` javascript\nsomeModule.stream(function(err, stdout, stderr) {\n if (err) throw err;\n\n var form = new FormData();\n\n form.append('file', stdout, {\n filename: 'unicycle.jpg', // ... or:\n filepath: 'photos/toys/unicycle.jpg',\n contentType: 'image/jpeg',\n knownLength: 19806\n });\n\n form.submit('http://example.com/', function(err, res) {\n if (err) throw err;\n console.log('Done');\n });\n});\n```\n\nThe `filepath` property overrides `filename` and may contain a relative path. This is typically used when uploading [multiple files from a directory](https://wicg.github.io/entries-api/#dom-htmlinputelement-webkitdirectory).\n\nFor edge cases, like POST request to URL with query string or to pass HTTP auth credentials, object can be passed to `form.submit()` as first parameter:\n\n``` javascript\nform.submit({\n host: 'example.com',\n path: '/probably.php?extra=params',\n auth: 'username:password'\n}, function(err, res) {\n console.log(res.statusCode);\n});\n```\n\nIn case you need to also send custom HTTP headers with the POST request, you can use the `headers` key in first parameter of `form.submit()`:\n\n``` javascript\nform.submit({\n host: 'example.com',\n path: '/surelynot.php',\n headers: {'x-test-header': 'test-header-value'}\n}, function(err, res) {\n console.log(res.statusCode);\n});\n```\n\n### Integration with other libraries\n\n#### Request\n\nForm submission using [request](https://github.com/request/request):\n\n```javascript\nvar formData = {\n my_field: 'my_value',\n my_file: fs.createReadStream(__dirname + '/unicycle.jpg'),\n};\n\nrequest.post({url:'http://service.com/upload', formData: formData}, function(err, httpResponse, body) {\n if (err) {\n return console.error('upload failed:', err);\n }\n console.log('Upload successful! Server responded with:', body);\n});\n```\n\nFor more details see [request readme](https://github.com/request/request#multipartform-data-multipart-form-uploads).\n\n#### node-fetch\n\nYou can also submit a form using [node-fetch](https://github.com/bitinn/node-fetch):\n\n```javascript\nvar form = new FormData();\n\nform.append('a', 1);\n\nfetch('http://example.com', { method: 'POST', body: form })\n .then(function(res) {\n return res.json();\n }).then(function(json) {\n console.log(json);\n });\n```\n\n## Notes\n\n- ```getLengthSync()``` method DOESN'T calculate length for streams, use ```knownLength``` options as workaround.\n- Starting version `2.x` FormData has dropped support for `node@0.10.x`.\n\n## License\n\nForm-Data is released under the [MIT](License) license.\naproba\n======\n\nA ridiculously light-weight function argument validator\n\n```\nvar validate = require(\"aproba\")\n\nfunction myfunc(a, b, c) {\n // `a` must be a string, `b` a number, `c` a function\n validate('SNF', arguments) // [a,b,c] is also valid\n}\n\nmyfunc('test', 23, function () {}) // ok\nmyfunc(123, 23, function () {}) // type error\nmyfunc('test', 23) // missing arg error\nmyfunc('test', 23, function () {}, true) // too many args error\n\n```\n\nValid types are:\n\n| type | description\n| :--: | :----------\n| * | matches any type\n| A | `Array.isArray` OR an `arguments` object\n| S | typeof == string\n| N | typeof == number\n| F | typeof == function\n| O | typeof == object and not type A and not type E\n| B | typeof == boolean\n| E | `instanceof Error` OR `null` **(special: see below)**\n| Z | == `null`\n\nValidation failures throw one of three exception types, distinguished by a\n`code` property of `EMISSINGARG`, `EINVALIDTYPE` or `ETOOMANYARGS`.\n\nIf you pass in an invalid type then it will throw with a code of\n`EUNKNOWNTYPE`.\n\nIf an **error** argument is found and is not null then the remaining\narguments are optional. That is, if you say `ESO` then that's like using a\nnon-magical `E` in: `E|ESO|ZSO`.\n\n### But I have optional arguments?!\n\nYou can provide more than one signature by separating them with pipes `|`.\nIf any signature matches the arguments then they'll be considered valid.\n\nSo for example, say you wanted to write a signature for\n`fs.createWriteStream`. The docs for it describe it thusly:\n\n```\nfs.createWriteStream(path[, options])\n```\n\nThis would be a signature of `SO|S`. That is, a string and and object, or\njust a string.\n\nNow, if you read the full `fs` docs, you'll see that actually path can ALSO\nbe a buffer. And options can be a string, that is:\n```\npath <String> | <Buffer>\noptions <String> | <Object>\n```\n\nTo reproduce this you have to fully enumerate all of the possible\ncombinations and that implies a signature of `SO|SS|OO|OS|S|O`. The\nawkwardness is a feature: It reminds you of the complexity you're adding to\nyour API when you do this sort of thing.\n\n### Browser support\n\nThis has no dependencies and should work in browsers, though you'll have\nnoisier stack traces.\n\n### Why this exists\n\nI wanted a very simple argument validator. It needed to do two things:\n\n1. Be more concise and easier to use than assertions\n\n2. Not encourage an infinite bikeshed of DSLs\n\nThis is why types are specified by a single character and there's no such\nthing as an optional argument. \n\nThis is not intended to validate user data. This is specifically about\nasserting the interface of your functions.\n\nIf you need greater validation, I encourage you to write them by hand or\nlook elsewhere.\nThis folder contains entry points for [ECMAScript proposals](https://github.com/zloirock/core-js/tree/v3#ecmascript-proposals) with dependencies.\n# bonjour\n\nA Bonjour/Zeroconf protocol implementation in pure JavaScript. Publish\nservices on the local network or discover existing services using\nmulticast DNS.\n\n[](https://travis-ci.org/watson/bonjour)\n[](https://github.com/feross/standard)\n\n## Installation\n\n```\nnpm install bonjour\n```\n\n## Usage\n\n```js\nvar bonjour = require('bonjour')()\n\n// advertise an HTTP server on port 3000\nbonjour.publish({ name: 'My Web Server', type: 'http', port: 3000 })\n\n// browse for all http services\nbonjour.find({ type: 'http' }, function (service) {\n console.log('Found an HTTP server:', service)\n})\n```\n\n## API\n\n### Initializing\n\n```js\nvar bonjour = require('bonjour')([options])\n```\n\nThe `options` are optional and will be used when initializing the\nunderlying multicast-dns server. For details see [the multicast-dns\ndocumentation](https://github.com/mafintosh/multicast-dns#mdns--multicastdnsoptions).\n\n### Publishing\n\n#### `var service = bonjour.publish(options)`\n\nPublishes a new service.\n\nOptions are:\n\n- `name` (string)\n- `host` (string, optional) - defaults to local hostname\n- `port` (number)\n- `type` (string)\n- `subtypes` (array of strings, optional)\n- `protocol` (string, optional) - `udp` or `tcp` (default)\n- `txt` (object, optional) - a key/value object to broadcast as the TXT\n record\n\nIANA maintains a [list of official service types and port\nnumbers](http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml).\n\n#### `bonjour.unpublishAll([callback])`\n\nUnpublish all services. The optional `callback` will be called when the\nservices have been unpublished.\n\n#### `bonjour.destroy()`\n\nDestroy the mdns instance. Closes the udp socket.\n\n### Browser\n\n#### `var browser = bonjour.find(options[, onup])`\n\nListen for services advertised on the network. An optional callback can\nbe provided as the 2nd argument and will be added as an event listener\nfor the `up` event.\n\nOptions (all optional):\n\n- `type` (string)\n- `subtypes` (array of strings)\n- `protocol` (string) - defaults to `tcp`\n- `txt` (object) - passed into [dns-txt\n module](https://github.com/watson/dns-txt) contructor. Set to `{\n binary: true }` if you want to keep the TXT records in binary\n\n#### `var browser = bonjour.findOne(options[, callback])`\n\nListen for and call the `callback` with the first instance of a service\nmatching the `options`. If no `callback` is given, it's expected that\nyou listen for the `up` event. The returned `browser` will automatically\nstop it self after the first matching service.\n\nOptions are the same as given in the `browser.find` function.\n\n#### `Event: up`\n\nEmitted every time a new service is found that matches the browser.\n\n#### `Event: down`\n\nEmitted every time an existing service emmits a goodbye message.\n\n#### `browser.services`\n\nAn array of services known by the browser to be online.\n\n#### `browser.start()`\n\nStart looking for matching services.\n\n#### `browser.stop()`\n\nStop looking for matching services.\n\n#### `browser.update()`\n\nBroadcast the query again.\n\n### Service\n\n#### `Event: up`\n\nEmitted when the service is up.\n\n#### `Event: error`\n\nEmitted if an error occurrs while publishing the service.\n\n#### `service.stop([callback])`\n\nUnpublish the service. The optional `callback` will be called when the\nservice have been unpublished.\n\n#### `service.start()`\n\nPublish the service.\n\n#### `service.name`\n\nThe name of the service, e.g. `Apple TV`.\n\n#### `service.type`\n\nThe type of the service, e.g. `http`.\n\n#### `service.subtypes`\n\nAn array of subtypes. Note that this property might be `null`.\n\n#### `service.protocol`\n\nThe protocol used by the service, e.g. `tcp`.\n\n#### `service.host`\n\nThe hostname or ip address where the service resides.\n\n#### `service.port`\n\nThe port on which the service listens, e.g. `5000`.\n\n#### `service.fqdn`\n\nThe fully qualified domain name of the service. E.g. if given the name\n`Foo Bar`, the type `http` and the protocol `tcp`, the `service.fqdn`\nproperty will be `Foo Bar._http._tcp.local`.\n\n#### `service.txt`\n\nThe TXT record advertised by the service (a key/value object). Note that\nthis property might be `null`.\n\n#### `service.published`\n\nA boolean indicating if the service is currently published.\n\n## License\n\nMIT\n# string_decoder\n\n***Node-core v8.9.4 string_decoder for userland***\n\n[](https://nodei.co/npm/string_decoder/)\n[](https://nodei.co/npm/string_decoder/)\n\n```bash\nnpm install --save string_decoder\n```\n\n***Node-core string_decoder for userland***\n\nThis package is a mirror of the string_decoder implementation in Node-core.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).\n\nAs of version 1.0.0 **string_decoder** uses semantic versioning.\n\n## Previous versions\n\nPrevious version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.\n\n## Update\n\nThe *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.\n\n## Streams Working Group\n\n`string_decoder` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\nSee [readable-stream](https://github.com/nodejs/readable-stream) for\nmore details.\n# Destroy\n\n[![NPM version][npm-image]][npm-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n[![Gittip][gittip-image]][gittip-url]\n\nDestroy a stream.\n\nThis module is meant to ensure a stream gets destroyed, handling different APIs\nand Node.js bugs.\n\n## API\n\n```js\nvar destroy = require('destroy')\n```\n\n### destroy(stream)\n\nDestroy the given stream. In most cases, this is identical to a simple\n`stream.destroy()` call. The rules are as follows for a given stream:\n\n 1. If the `stream` is an instance of `ReadStream`, then call `stream.destroy()`\n and add a listener to the `open` event to call `stream.close()` if it is\n fired. This is for a Node.js bug that will leak a file descriptor if\n `.destroy()` is called before `open`.\n 2. If the `stream` is not an instance of `Stream`, then nothing happens.\n 3. If the `stream` has a `.destroy()` method, then call it.\n\nThe function returns the `stream` passed in as the argument.\n\n## Example\n\n```js\nvar destroy = require('destroy')\n\nvar fs = require('fs')\nvar stream = fs.createReadStream('package.json')\n\n// ... and later\ndestroy(stream)\n```\n\n[npm-image]: https://img.shields.io/npm/v/destroy.svg?style=flat-square\n[npm-url]: https://npmjs.org/package/destroy\n[github-tag]: http://img.shields.io/github/tag/stream-utils/destroy.svg?style=flat-square\n[github-url]: https://github.com/stream-utils/destroy/tags\n[travis-image]: https://img.shields.io/travis/stream-utils/destroy.svg?style=flat-square\n[travis-url]: https://travis-ci.org/stream-utils/destroy\n[coveralls-image]: https://img.shields.io/coveralls/stream-utils/destroy.svg?style=flat-square\n[coveralls-url]: https://coveralls.io/r/stream-utils/destroy?branch=master\n[license-image]: http://img.shields.io/npm/l/destroy.svg?style=flat-square\n[license-url]: LICENSE.md\n[downloads-image]: http://img.shields.io/npm/dm/destroy.svg?style=flat-square\n[downloads-url]: https://npmjs.org/package/destroy\n[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square\n[gittip-url]: https://www.gittip.com/jonathanong/\n# Electron-to-Chromium [](https://www.npmjs.com/package/electron-to-chromium) [](https://travis-ci.org/Kilian/electron-to-chromium) [](https://www.npmjs.com/package/electron-to-chromium) [](https://codecov.io/gh/Kilian/electron-to-chromium)\n[](https://app.fossa.io/projects/git%2Bgithub.com%2FKilian%2Felectron-to-chromium?ref=badge_shield)\n\nThis repository provides a mapping of Electron versions to the Chromium version that it uses.\n\nThis package is used in [Browserslist](https://github.com/ai/browserslist), so you can use e.g. `electron >= 1.4` in [Autoprefixer](https://github.com/postcss/autoprefixer), [Stylelint](https://github.com/stylelint/stylelint), [babel-preset-env](https://github.com/babel/babel-preset-env) and [eslint-plugin-compat](https://github.com/amilajack/eslint-plugin-compat).\n\n## Install\nInstall using `npm install electron-to-chromium`.\n\n## Usage\nTo include Electron-to-Chromium, require it:\n\n```js\nvar e2c = require('electron-to-chromium');\n```\n\n### Properties\nThe Electron-to-Chromium object has 4 properties to use:\n\n#### `versions`\nAn object of key-value pairs with a _major_ Electron version as the key, and the corresponding major Chromium version as the value.\n\n```js\nvar versions = e2c.versions;\nconsole.log(versions['1.4']);\n// returns \"53\"\n```\n\n#### `fullVersions`\nAn object of key-value pairs with a Electron version as the key, and the corresponding full Chromium version as the value.\n\n```js\nvar versions = e2c.fullVersions;\nconsole.log(versions['1.4.11']);\n// returns \"53.0.2785.143\"\n```\n\n#### `chromiumVersions`\nAn object of key-value pairs with a _major_ Chromium version as the key, and the corresponding major Electron version as the value.\n\n```js\nvar versions = e2c.chromiumVersions;\nconsole.log(versions['54']);\n// returns \"1.4\"\n```\n\n#### `fullChromiumVersions`\nAn object of key-value pairs with a Chromium version as the key, and an array of the corresponding major Electron versions as the value.\n\n```js\nvar versions = e2c.fullChromiumVersions;\nconsole.log(versions['54.0.2840.101']);\n// returns [\"1.5.1\", \"1.5.0\"]\n```\n### Functions\n\n#### `electronToChromium(query)`\nArguments:\n* Query: string or number, required. A major or full Electron version.\n\nA function that returns the corresponding Chromium version for a given Electron function. Returns a string.\n\nIf you provide it with a major Electron version, it will return a major Chromium version:\n\n```js\nvar chromeVersion = e2c.electronToChromium('1.4');\n// chromeVersion is \"53\"\n```\n\nIf you provide it with a full Electron version, it will return the full Chromium version.\n\n```js\nvar chromeVersion = e2c.electronToChromium('1.4.11');\n// chromeVersion is \"53.0.2785.143\"\n```\n\nIf a query does not match a Chromium version, it will return `undefined`.\n\n```js\nvar chromeVersion = e2c.electronToChromium('9000');\n// chromeVersion is undefined\n```\n\n#### `chromiumToElectron(query)`\nArguments:\n* Query: string or number, required. A major or full Chromium version.\n\nReturns a string with the corresponding Electron version for a given Chromium query.\n\nIf you provide it with a major Chromium version, it will return a major Electron version:\n\n```js\nvar electronVersion = e2c.chromiumToElectron('54');\n// electronVersion is \"1.4\"\n```\n\nIf you provide it with a full Chrome version, it will return an array of full Electron versions.\n\n```js\nvar electronVersions = e2c.chromiumToElectron('56.0.2924.87');\n// electronVersions is [\"1.6.3\", \"1.6.2\", \"1.6.1\", \"1.6.0\"]\n```\n\nIf a query does not match an Electron version, it will return `undefined`.\n\n```js\nvar electronVersion = e2c.chromiumToElectron('10');\n// chromeVersion is undefined\n```\n\n#### `electronToBrowserList(query)` **DEPRECATED**\nArguments:\n* Query: string or number, required. A major Electron version.\n\n_**Deprecated**: Browserlist already includes electron-to-chromium._\n\nA function that returns a [Browserslist](https://github.com/ai/browserslist) query that matches the given major Electron version. Returns a string.\n\nIf you provide it with a major Electron version, it will return a Browserlist query string that matches the Chromium capabilities:\n\n```js\nvar query = e2c.electronToBrowserList('1.4');\n// query is \"Chrome >= 53\"\n```\n\nIf a query does not match a Chromium version, it will return `undefined`.\n\n```js\nvar query = e2c.electronToBrowserList('9000');\n// query is undefined\n```\n\n### Importing just versions, fullVersions, chromiumVersions and fullChromiumVersions\nAll lists can be imported on their own, if file size is a concern.\n\n#### `versions`\n\n```js\nvar versions = require('electron-to-chromium/versions');\n```\n\n#### `fullVersions`\n\n```js\nvar fullVersions = require('electron-to-chromium/full-versions');\n```\n\n#### `chromiumVersions`\n\n```js\nvar chromiumVersions = require('electron-to-chromium/chromium-versions');\n```\n\n#### `fullChromiumVersions`\n\n```js\nvar fullChromiumVersions = require('electron-to-chromium/full-chromium-versions');\n```\n\n## Updating\nThis package will be updated with each new Electron release.\n\nTo update the list, run `npm run build.js`. Requires internet access as it downloads from the canonical list of Electron versions.\n\nTo verify correct behaviour, run `npm test`.\n\n## License\n[](https://app.fossa.io/projects/git%2Bgithub.com%2FKilian%2Felectron-to-chromium?ref=badge_large)\n# use [](https://www.npmjs.com/package/use) [](https://npmjs.org/package/use) [](https://npmjs.org/package/use) [](https://travis-ci.org/jonschlinkert/use)\n\n> Easily add plugin support to your node.js application.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save use\n```\n\nA different take on plugin handling! This is not a middleware system, if you need something that handles async middleware, [ware](https://github.com/segmentio/ware) is great for that.\n\n## Usage\n\n```js\nconst use = require('use');\n```\n\nSee the [examples folder](./examples) for usage examples.\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [base-plugins](https://www.npmjs.com/package/base-plugins): Adds 'smart plugin' support to your base application. | [homepage](https://github.com/node-base/base-plugins \"Adds 'smart plugin' support to your base application.\")\n* [base](https://www.npmjs.com/package/base): Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks | [homepage](https://github.com/node-base/base \"Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks\")\n* [ware](https://www.npmjs.com/package/ware): Easily create your own middleware layer. | [homepage](https://github.com/segmentio/ware \"Easily create your own middleware layer.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 37 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 7 | [charlike-old](https://github.com/charlike-old) |\n| 2 | [doowb](https://github.com/doowb) |\n| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)\n* [GitHub Profile](https://github.com/jonschlinkert)\n* [Twitter Profile](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 12, 2018._\n# sax js\n\nA sax-style parser for XML and HTML.\n\nDesigned with [node](http://nodejs.org/) in mind, but should work fine in\nthe browser or other CommonJS implementations.\n\n## What This Is\n\n* A very simple tool to parse through an XML string.\n* A stepping stone to a streaming HTML parser.\n* A handy way to deal with RSS and other mostly-ok-but-kinda-broken XML\n docs.\n\n## What This Is (probably) Not\n\n* An HTML Parser - That's a fine goal, but this isn't it. It's just\n XML.\n* A DOM Builder - You can use it to build an object model out of XML,\n but it doesn't do that out of the box.\n* XSLT - No DOM = no querying.\n* 100% Compliant with (some other SAX implementation) - Most SAX\n implementations are in Java and do a lot more than this does.\n* An XML Validator - It does a little validation when in strict mode, but\n not much.\n* A Schema-Aware XSD Thing - Schemas are an exercise in fetishistic\n masochism.\n* A DTD-aware Thing - Fetching DTDs is a much bigger job.\n\n## Regarding `<!DOCTYPE`s and `<!ENTITY`s\n\nThe parser will handle the basic XML entities in text nodes and attribute\nvalues: `& < > ' "`. It's possible to define additional\nentities in XML by putting them in the DTD. This parser doesn't do anything\nwith that. If you want to listen to the `ondoctype` event, and then fetch\nthe doctypes, and read the entities and add them to `parser.ENTITIES`, then\nbe my guest.\n\nUnknown entities will fail in strict mode, and in loose mode, will pass\nthrough unmolested.\n\n## Usage\n\n```javascript\nvar sax = require(\"./lib/sax\"),\n strict = true, // set to false for html-mode\n parser = sax.parser(strict);\n\nparser.onerror = function (e) {\n // an error happened.\n};\nparser.ontext = function (t) {\n // got some text. t is the string of text.\n};\nparser.onopentag = function (node) {\n // opened a tag. node has \"name\" and \"attributes\"\n};\nparser.onattribute = function (attr) {\n // an attribute. attr has \"name\" and \"value\"\n};\nparser.onend = function () {\n // parser stream is done, and ready to have more stuff written to it.\n};\n\nparser.write('<xml>Hello, <who name=\"world\">world</who>!</xml>').close();\n\n// stream usage\n// takes the same options as the parser\nvar saxStream = require(\"sax\").createStream(strict, options)\nsaxStream.on(\"error\", function (e) {\n // unhandled errors will throw, since this is a proper node\n // event emitter.\n console.error(\"error!\", e)\n // clear the error\n this._parser.error = null\n this._parser.resume()\n})\nsaxStream.on(\"opentag\", function (node) {\n // same object as above\n})\n// pipe is supported, and it's readable/writable\n// same chunks coming in also go out.\nfs.createReadStream(\"file.xml\")\n .pipe(saxStream)\n .pipe(fs.createWriteStream(\"file-copy.xml\"))\n```\n\n## Arguments\n\nPass the following arguments to the parser function. All are optional.\n\n`strict` - Boolean. Whether or not to be a jerk. Default: `false`.\n\n`opt` - Object bag of settings regarding string formatting. All default to `false`.\n\nSettings supported:\n\n* `trim` - Boolean. Whether or not to trim text and comment nodes.\n* `normalize` - Boolean. If true, then turn any whitespace into a single\n space.\n* `lowercase` - Boolean. If true, then lowercase tag names and attribute names\n in loose mode, rather than uppercasing them.\n* `xmlns` - Boolean. If true, then namespaces are supported.\n* `position` - Boolean. If false, then don't track line/col/position.\n* `strictEntities` - Boolean. If true, only parse [predefined XML\n entities](http://www.w3.org/TR/REC-xml/#sec-predefined-ent)\n (`&`, `'`, `>`, `<`, and `"`)\n\n## Methods\n\n`write` - Write bytes onto the stream. You don't have to do this all at\nonce. You can keep writing as much as you want.\n\n`close` - Close the stream. Once closed, no more data may be written until\nit is done processing the buffer, which is signaled by the `end` event.\n\n`resume` - To gracefully handle errors, assign a listener to the `error`\nevent. Then, when the error is taken care of, you can call `resume` to\ncontinue parsing. Otherwise, the parser will not continue while in an error\nstate.\n\n## Members\n\nAt all times, the parser object will have the following members:\n\n`line`, `column`, `position` - Indications of the position in the XML\ndocument where the parser currently is looking.\n\n`startTagPosition` - Indicates the position where the current tag starts.\n\n`closed` - Boolean indicating whether or not the parser can be written to.\nIf it's `true`, then wait for the `ready` event to write again.\n\n`strict` - Boolean indicating whether or not the parser is a jerk.\n\n`opt` - Any options passed into the constructor.\n\n`tag` - The current tag being dealt with.\n\nAnd a bunch of other stuff that you probably shouldn't touch.\n\n## Events\n\nAll events emit with a single argument. To listen to an event, assign a\nfunction to `on<eventname>`. Functions get executed in the this-context of\nthe parser object. The list of supported events are also in the exported\n`EVENTS` array.\n\nWhen using the stream interface, assign handlers using the EventEmitter\n`on` function in the normal fashion.\n\n`error` - Indication that something bad happened. The error will be hanging\nout on `parser.error`, and must be deleted before parsing can continue. By\nlistening to this event, you can keep an eye on that kind of stuff. Note:\nthis happens *much* more in strict mode. Argument: instance of `Error`.\n\n`text` - Text node. Argument: string of text.\n\n`doctype` - The `<!DOCTYPE` declaration. Argument: doctype string.\n\n`processinginstruction` - Stuff like `<?xml foo=\"blerg\" ?>`. Argument:\nobject with `name` and `body` members. Attributes are not parsed, as\nprocessing instructions have implementation dependent semantics.\n\n`sgmldeclaration` - Random SGML declarations. Stuff like `<!ENTITY p>`\nwould trigger this kind of event. This is a weird thing to support, so it\nmight go away at some point. SAX isn't intended to be used to parse SGML,\nafter all.\n\n`opentagstart` - Emitted immediately when the tag name is available,\nbut before any attributes are encountered. Argument: object with a\n`name` field and an empty `attributes` set. Note that this is the\nsame object that will later be emitted in the `opentag` event.\n\n`opentag` - An opening tag. Argument: object with `name` and `attributes`.\nIn non-strict mode, tag names are uppercased, unless the `lowercase`\noption is set. If the `xmlns` option is set, then it will contain\nnamespace binding information on the `ns` member, and will have a\n`local`, `prefix`, and `uri` member.\n\n`closetag` - A closing tag. In loose mode, tags are auto-closed if their\nparent closes. In strict mode, well-formedness is enforced. Note that\nself-closing tags will have `closeTag` emitted immediately after `openTag`.\nArgument: tag name.\n\n`attribute` - An attribute node. Argument: object with `name` and `value`.\nIn non-strict mode, attribute names are uppercased, unless the `lowercase`\noption is set. If the `xmlns` option is set, it will also contains namespace\ninformation.\n\n`comment` - A comment node. Argument: the string of the comment.\n\n`opencdata` - The opening tag of a `<![CDATA[` block.\n\n`cdata` - The text of a `<![CDATA[` block. Since `<![CDATA[` blocks can get\nquite large, this event may fire multiple times for a single block, if it\nis broken up into multiple `write()`s. Argument: the string of random\ncharacter data.\n\n`closecdata` - The closing tag (`]]>`) of a `<](https://www.npmjs.com/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\n\n- [Install](#install)\n- [Usage](#usage)\n- [Examples](#examples)\n- [API](#api)\n- [Related projects](#related-projects)\n- [Running tests](#running-tests)\n- [Contributing](#contributing)\n- [Author](#author)\n- [License](#license)\n\n_(TOC generated by [verb](https://github.com/verbose/verb) using [markdown-toc](https://github.com/jonschlinkert/markdown-toc))_\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm i is-accessor-descriptor --save\n```\n\n## Usage\n\n```js\nvar isAccessor = require('is-accessor-descriptor');\n\nisAccessor({get: function() {}});\n//=> true\n```\n\nYou may also pass an object and property name to check if the property is an accessor:\n\n```js\nisAccessor(foo, 'bar');\n```\n\n## Examples\n\n`false` when not an object\n\n```js\nisAccessor('a')\nisAccessor(null)\nisAccessor([])\n//=> false\n```\n\n`true` when the object has valid properties\n\nand the properties all have the correct JavaScript types:\n\n```js\nisAccessor({get: noop, set: noop})\nisAccessor({get: noop})\nisAccessor({set: noop})\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisAccessor({get: noop, set: noop, bar: 'baz'})\nisAccessor({get: noop, writable: true})\nisAccessor({get: noop, value: true})\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisAccessor({get: noop, set: 'baz'})\nisAccessor({get: 'foo', set: noop})\nisAccessor({get: 'foo', bar: 'baz'})\nisAccessor({get: 'foo', set: 'baz'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisAccessor({get: noop, set: noop, enumerable: 'foo'})\nisAccessor({set: noop, configurable: 'foo'})\nisAccessor({get: noop, configurable: 'foo'})\n//=> false\n```\n\n## Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor)\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor)\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://www.npmjs.com/package/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor)\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-accessor-descriptor/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 [Jon Schlinkert](https://github.com/jonschlinkert)\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb) on December 28, 2015._\n# jsesc [](https://travis-ci.org/mathiasbynens/jsesc) [](https://coveralls.io/r/mathiasbynens/jsesc) [](https://gemnasium.com/mathiasbynens/jsesc)\n\nThis is a JavaScript library for [escaping JavaScript strings](http://mathiasbynens.be/notes/javascript-escapes) while generating the shortest possible valid ASCII-only output. [Here’s an online demo.](http://mothereff.in/js-escapes)\n\nThis can be used to avoid [mojibake](http://en.wikipedia.org/wiki/Mojibake) and other encoding issues, or even to [avoid errors](https://twitter.com/annevk/status/380000829643571200) when passing JSON-formatted data (which may contain U+2028 LINE SEPARATOR, U+2029 PARAGRAPH SEPARATOR, or [lone surrogates](http://esdiscuss.org/topic/code-points-vs-unicode-scalar-values#content-14)) to a JavaScript parser or an UTF-8 encoder, respectively.\n\nFeel free to fork if you see possible improvements!\n\n## Installation\n\nVia [Bower](http://bower.io/):\n\n```bash\nbower install jsesc\n```\n\nVia [Component](https://github.com/component/component):\n\n```bash\ncomponent install mathiasbynens/jsesc\n```\n\nVia [npm](http://npmjs.org/):\n\n```bash\nnpm install jsesc\n```\n\nIn a browser:\n\n```html\n<script src=\"jsesc.js\"></script>\n```\n\nIn [Node.js](http://nodejs.org/) and [RingoJS](http://ringojs.org/):\n\n```js\nvar jsesc = require('jsesc');\n```\n\nIn [Narwhal](http://narwhaljs.org/):\n\n```js\nvar jsesc = require('jsesc').jsesc;\n```\n\nIn [Rhino](http://www.mozilla.org/rhino/):\n\n```js\nload('jsesc.js');\n```\n\nUsing an AMD loader like [RequireJS](http://requirejs.org/):\n\n```js\nrequire(\n {\n 'paths': {\n 'jsesc': 'path/to/jsesc'\n }\n },\n ['jsesc'],\n function(jsesc) {\n console.log(jsesc);\n }\n);\n```\n\n## API\n\n### `jsesc(value, options)`\n\nThis function takes a value and returns an escaped version of the value where any characters that are not printable ASCII symbols are escaped using the shortest possible (but valid) [escape sequences for use in JavaScript strings](http://mathiasbynens.be/notes/javascript-escapes). The first supported value type is strings:\n\n```js\njsesc('Ich ♥ Bücher');\n// → 'Ich \\\\u2665 B\\\\xFCcher'\n\njsesc('foo 𝌆 bar');\n// → 'foo \\\\uD834\\\\uDF06 bar'\n```\n\nInstead of a string, the `value` can also be an array, or an object. In such cases, `jsesc` will return a stringified version of the value where any characters that are not printable ASCII symbols are escaped in the same way.\n\n```js\n// Escaping an array\njsesc([\n 'Ich ♥ Bücher', 'foo 𝌆 bar'\n]);\n// → '[\\'Ich \\\\u2665 B\\\\xFCcher\\',\\'foo \\\\uD834\\\\uDF06 bar\\']'\n\n// Escaping an object\njsesc({\n 'Ich ♥ Bücher': 'foo 𝌆 bar'\n});\n// → '{\\'Ich \\\\u2665 B\\\\xFCcher\\':\\'foo \\\\uD834\\\\uDF06 bar\\'}'\n```\n\nThe optional `options` argument accepts an object with the following options:\n\n#### `quotes`\n\nThe default value for the `quotes` option is `'single'`. This means that any occurences of `'` in the input string will be escaped as `\\'`, so that the output can be used in a string literal wrapped in single quotes.\n\n```js\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.');\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single'\n});\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n// → \"Lorem ipsum \\\"dolor\\\" sit \\\\'amet\\\\' etc.\"\n```\n\nIf you want to use the output as part of a string literal wrapped in double quotes, set the `quotes` option to `'double'`.\n\n```js\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double'\n});\n// → 'Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.'\n// → \"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit 'amet' etc.\"\n```\n\nThis setting also affects the output for arrays and objects:\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'quotes': 'double'\n});\n// → '{\"Ich \\\\u2665 B\\\\xFCcher\":\"foo \\\\uD834\\\\uDF06 bar\"}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'quotes': 'double'\n});\n// → '[\"Ich \\\\u2665 B\\\\xFCcher\",\"foo \\\\uD834\\\\uDF06 bar\"]'\n```\n\n#### `wrap`\n\nThe `wrap` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output will be a valid JavaScript string literal wrapped in quotes. The type of quotes can be specified through the `quotes` setting.\n\n```js\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single',\n 'wrap': true\n});\n// → '\\'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.\\''\n// → \"\\'Lorem ipsum \\\"dolor\\\" sit \\\\\\'amet\\\\\\' etc.\\'\"\n\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double',\n 'wrap': true\n});\n// → '\"Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.\"'\n// → \"\\\"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit \\'amet\\' etc.\\\"\"\n```\n\n#### `es6`\n\nThe `es6` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, any astral Unicode symbols in the input will be escaped using [ECMAScript 6 Unicode code point escape sequences](http://mathiasbynens.be/notes/javascript-escapes#unicode-code-point) instead of using separate escape sequences for each surrogate half. If backwards compatibility with ES5 environments is a concern, don’t enable this setting. If the `json` setting is enabled, the value for the `es6` setting is ignored (as if it was `false`).\n\n```js\n// By default, the `es6` option is disabled:\njsesc('foo 𝌆 bar 💩 baz');\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To explicitly disable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': false\n});\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To enable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': true\n});\n// → 'foo \\\\u{1D306} bar \\\\u{1F4A9} baz'\n```\n\n#### `escapeEverything`\n\nThe `escapeEverything` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, all the symbols in the output will be escaped, even printable ASCII symbols.\n\n```js\njsesc('lolwat\"foo\\'bar', {\n 'escapeEverything': true\n});\n// → '\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\\\'\\\\x62\\\\x61\\\\x72'\n// → \"\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\'\\\\x62\\\\x61\\\\x72\"\n```\n\nThis setting also affects the output for arrays and objects:\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'escapeEverything': true\n});\n// → '{\\'\\x49\\x63\\x68\\x20\\u2665\\x20\\x42\\xFC\\x63\\x68\\x65\\x72\\':\\'\\x66\\x6F\\x6F\\x20\\uD834\\uDF06\\x20\\x62\\x61\\x72\\'}'\n// → \"{'\\x49\\x63\\x68\\x20\\u2665\\x20\\x42\\xFC\\x63\\x68\\x65\\x72':'\\x66\\x6F\\x6F\\x20\\uD834\\uDF06\\x20\\x62\\x61\\x72'}\"\n\njsesc([ 'Ich ♥ Bücher': 'foo 𝌆 bar' ], {\n 'escapeEverything': true\n});\n// → '[\\'\\x49\\x63\\x68\\x20\\u2665\\x20\\x42\\xFC\\x63\\x68\\x65\\x72\\',\\'\\x66\\x6F\\x6F\\x20\\uD834\\uDF06\\x20\\x62\\x61\\x72\\']'\n```\n\n#### `compact`\n\nThe `compact` option takes a boolean value (`true` or `false`), and defaults to `true` (enabled). When enabled, the output for arrays and objects will be as compact as possible; it won’t be formatted nicely.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': true // this is the default\n});\n// → '{\\'Ich \\u2665 B\\xFCcher\\':\\'foo \\uD834\\uDF06 bar\\'}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false\n});\n// → '[\\n\\t\\'Ich \\u2665 B\\xFCcher\\',\\n\\t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `indent`\n\nThe `indent` option takes a string value, and defaults to `'\\t'`. When the `compact` setting is enabled (`true`), the value of the `indent` option is used to format the output for arrays and objects.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': '\\t' // this is the default\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': ' '\n});\n// → '{\\n \\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false,\n 'indent': ' '\n});\n// → '[\\n \\'Ich \\u2665 B\\xFCcher\\',\\n\\ t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `json`\n\nThe `json` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output is valid JSON. [Hexadecimal character escape sequences](http://mathiasbynens.be/notes/javascript-escapes#hexadecimal) and [the `\\v` or `\\0` escape sequences](http://mathiasbynens.be/notes/javascript-escapes#single) will not be used. Setting `json: true` implies `quotes: 'double', wrap: true, es6: false`, although these values can still be overridden if needed — but in such cases, the output won’t be valid JSON anymore.\n\n```js\njsesc('foo\\x00bar\\xFF\\uFFFDbaz', {\n 'json': true\n});\n// → '\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"'\n\njsesc({ 'foo\\x00bar\\xFF\\uFFFDbaz': 'foo\\x00bar\\xFF\\uFFFDbaz' }, {\n 'json': true\n});\n// → '{\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\":\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"}'\n\njsesc([ 'foo\\x00bar\\xFF\\uFFFDbaz', 'foo\\x00bar\\xFF\\uFFFDbaz' ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\",\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"]'\n\n// Values that are acceptable in JSON but aren’t strings, arrays, or object\n// literals can’t be escaped, so they’ll just be preserved:\njsesc([ 'foo\\x00bar', [1, '©', { 'foo': true, 'qux': null }], 42 ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\",[1,\"\\\\u00A9\",{\"foo\":true,\"qux\":null}],42]'\n// Values that aren’t allowed in JSON are run through `JSON.stringify()`:\njsesc([ undefined, -Infinity ], {\n 'json': true\n});\n// → '[null,null]'\n```\n\n**Note:** Using this option on objects or arrays that contain non-string values relies on `JSON.stringify()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](http://bestiejs.github.io/json3/).\n\n### `jsesc.version`\n\nA string representing the semantic version number.\n\n### Using the `jsesc` binary\n\nTo use the `jsesc` binary in your shell, simply install jsesc globally using npm:\n\n```bash\nnpm install -g jsesc\n```\n\nAfter that you will be able to escape strings from the command line:\n\n```bash\n$ jsesc 'föo ♥ bår 𝌆 baz'\nf\\xF6o \\u2665 b\\xE5r \\uD834\\uDF06 baz\n```\n\nTo escape arrays or objects containing string values, use the `-o`/`--object` option:\n\n```bash\n$ jsesc --object '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{'f\\xF6o':'\\u2665','b\\xE5r':'\\uD834\\uDF06 baz'}\n```\n\nTo prettify the output in such cases, use the `-p`/`--pretty` option:\n\n```bash\n$ jsesc --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n 'f\\xF6o': '\\u2665',\n 'b\\xE5r': '\\uD834\\uDF06 baz'\n}\n```\n\nFor valid JSON output, use the `-j`/`--json` option:\n\n```bash\n$ jsesc --json --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n \"f\\u00F6o\": \"\\u2665\",\n \"b\\u00E5r\": \"\\uD834\\uDF06 baz\"\n}\n```\n\nRead a local JSON file, escape any non-ASCII symbols, and save the result to a new file:\n\n```bash\n$ jsesc --json --object < data-raw.json > data-escaped.json\n```\n\nOr do the same with an online JSON file:\n\n```bash\n$ curl -sL \"http://git.io/aorKgQ\" | jsesc --json --object > data-escaped.json\n```\n\nSee `jsesc --help` for the full list of options.\n\n## Support\n\nThis library has been tested in at least Chrome 27-29, Firefox 3-22, Safari 4-6, Opera 10-12, IE 6-10, Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, and Rhino 1.7RC4.\n\n**Note:** Using the `json` option on objects or arrays that contain non-string values relies on `JSON.parse()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](http://bestiejs.github.io/json3/).\n\n## Unit tests & code coverage\n\nAfter cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.\n\nOnce that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`.\n\nTo generate the code coverage report, use `grunt cover`.\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](http://mathiasbynens.be/) |\n\n## License\n\nThis library is available under the [MIT](http://mths.be/mit) license.\n# postcss-value-parser\n\n[](https://travis-ci.org/TrySound/postcss-value-parser)\n\nTransforms CSS declaration values and at-rule parameters into a tree of nodes, and provides a simple traversal API.\n\n## Usage\n\n```js\nvar valueParser = require('postcss-value-parser');\nvar cssBackgroundValue = 'url(foo.png) no-repeat 40px 73%';\nvar parsedValue = valueParser(cssBackgroundValue);\n// parsedValue exposes an API described below,\n// e.g. parsedValue.walk(..), parsedValue.toString(), etc.\n```\n\nFor example, parsing the value `rgba(233, 45, 66, .5)` will return the following:\n\n```js\n{\n nodes: [\n {\n type: 'function',\n value: 'rgba',\n before: '',\n after: '',\n nodes: [\n { type: 'word', value: '233' },\n { type: 'div', value: ',', before: '', after: ' ' },\n { type: 'word', value: '45' },\n { type: 'div', value: ',', before: '', after: ' ' },\n { type: 'word', value: '66' },\n { type: 'div', value: ',', before: ' ', after: '' },\n { type: 'word', value: '.5' }\n ]\n }\n ]\n}\n```\n\nIf you wanted to convert each `rgba()` value in `sourceCSS` to a hex value, you could do so like this:\n\n```js\nvar valueParser = require('postcss-value-parser');\n\nvar parsed = valueParser(sourceCSS);\n\n// walk() will visit all the of the nodes in the tree,\n// invoking the callback for each.\nparsed.walk(function (node) {\n\n // Since we only want to transform rgba() values,\n // we can ignore anything else.\n if (node.type !== 'function' && node.value !== 'rgba') return;\n\n // We can make an array of the rgba() arguments to feed to a\n // convertToHex() function\n var color = node.nodes.filter(function (node) {\n return node.type === 'word';\n }).map(function (node) {\n return Number(node.value);\n }); // [233, 45, 66, .5]\n\n // Now we will transform the existing rgba() function node\n // into a word node with the hex value\n node.type = 'word';\n node.value = convertToHex(color);\n})\n\nparsed.toString(); // #E92D42\n```\n\n## Nodes\n\nEach node is an object with these common properties:\n\n- **type**: The type of node (`word`, `string`, `div`, `space`, `comment`, or `function`).\n Each type is documented below.\n- **value**: Each node has a `value` property; but what exactly `value` means\n is specific to the node type. Details are documented for each type below.\n- **sourceIndex**: The starting index of the node within the original source\n string. For example, given the source string `10px 20px`, the `word` node\n whose value is `20px` will have a `sourceIndex` of `5`.\n\n### word\n\nThe catch-all node type that includes keywords (e.g. `no-repeat`),\nquantities (e.g. `20px`, `75%`, `1.5`), and hex colors (e.g. `#e6e6e6`).\n\nNode-specific properties:\n\n- **value**: The \"word\" itself.\n\n### string\n\nA quoted string value, e.g. `\"something\"` in `content: \"something\";`.\n\nNode-specific properties:\n\n- **value**: The text content of the string.\n- **quote**: The quotation mark surrounding the string, either `\"` or `'`.\n- **unclosed**: `true` if the string was not closed properly. e.g. `\"unclosed string `.\n\n### div\n\nA divider, for example\n\n- `,` in `animation-duration: 1s, 2s, 3s`\n- `/` in `border-radius: 10px / 23px`\n- `:` in `(min-width: 700px)`\n\nNode-specific properties:\n\n- **value**: The divider character. Either `,`, `/`, or `:` (see examples above).\n- **before**: Whitespace before the divider.\n- **after**: Whitespace after the divider.\n\n### space\n\nWhitespace used as a separator, e.g. ` ` occurring twice in `border: 1px solid black;`.\n\nNode-specific properties:\n\n- **value**: The whitespace itself.\n\n### comment\n\nA CSS comment starts with `/*` and ends with `*/`\n\nNode-specific properties:\n\n- **value**: The comment value without `/*` and `*/`\n- **unclosed**: `true` if the comment was not closed properly. e.g. `/* comment without an end `.\n\n### function\n\nA CSS function, e.g. `rgb(0,0,0)` or `url(foo.bar)`.\n\nFunction nodes have nodes nested within them: the function arguments.\n\nAdditional properties:\n\n- **value**: The name of the function, e.g. `rgb` in `rgb(0,0,0)`.\n- **before**: Whitespace after the opening parenthesis and before the first argument,\n e.g. ` ` in `rgb( 0,0,0)`.\n- **after**: Whitespace before the closing parenthesis and after the last argument,\n e.g. ` ` in `rgb(0,0,0 )`.\n- **nodes**: More nodes representing the arguments to the function.\n- **unclosed**: `true` if the parentheses was not closed properly. e.g. `( unclosed-function `.\n\nMedia features surrounded by parentheses are considered functions with an\nempty value. For example, `(min-width: 700px)` parses to these nodes:\n\n```js\n[\n {\n type: 'function', value: '', before: '', after: '',\n nodes: [\n { type: 'word', value: 'min-width' },\n { type: 'div', value: ':', before: '', after: ' ' },\n { type: 'word', value: '700px' }\n ]\n }\n]\n```\n\n`url()` functions can be parsed a little bit differently depending on\nwhether the first character in the argument is a quotation mark.\n\n`url( /gfx/img/bg.jpg )` parses to:\n\n```js\n{ type: 'function', sourceIndex: 0, value: 'url', before: ' ', after: ' ', nodes: [\n { type: 'word', sourceIndex: 5, value: '/gfx/img/bg.jpg' }\n] }\n```\n\n`url( \"/gfx/img/bg.jpg\" )`, on the other hand, parses to:\n\n```js\n{ type: 'function', sourceIndex: 0, value: 'url', before: ' ', after: ' ', nodes: [\n type: 'string', sourceIndex: 5, quote: '\"', value: '/gfx/img/bg.jpg' },\n] }\n```\n\n## API\n\n```\nvar valueParser = require('postcss-value-parser');\n```\n\n### valueParser.unit(quantity)\n\nParses `quantity`, distinguishing the number from the unit. Returns an object like the following:\n\n```js\n// Given 2rem\n{\n number: '2',\n unit: 'rem'\n}\n```\n\nIf the `quantity` argument cannot be parsed as a number, returns `false`.\n\n*This function does not parse complete values*: you cannot pass it `1px solid black` and expect `px` as\nthe unit. Instead, you should pass it single quantities only. Parse `1px solid black`, then pass it\nthe stringified `1px` node (a `word` node) to parse the number and unit.\n\n### valueParser.stringify(nodes[, custom])\n\nStringifies a node or array of nodes.\n\nThe `custom` function is called for each `node`; return a string to override the default behaviour.\n\n### valueParser.walk(nodes, callback[, bubble])\n\nWalks each provided node, recursively walking all descendent nodes within functions.\n\nReturning `false` in the `callback` will prevent traversal of descendent nodes (within functions).\nYou can use this feature to for shallow iteration, walking over only the *immediate* children.\n*Note: This only applies if `bubble` is `false` (which is the default).*\n\nBy default, the tree is walked from the outermost node inwards.\nTo reverse the direction, pass `true` for the `bubble` argument.\n\nThe `callback` is invoked with three arguments: `callback(node, index, nodes)`.\n\n- `node`: The current node.\n- `index`: The index of the current node.\n- `nodes`: The complete nodes array passed to `walk()`.\n\nReturns the `valueParser` instance.\n\n### var parsed = valueParser(value)\n\nReturns the parsed node tree.\n\n### parsed.nodes\n\nThe array of nodes.\n\n### parsed.toString()\n\nStringifies the node tree.\n\n### parsed.walk(callback[, bubble])\n\nWalks each node inside `parsed.nodes`. See the documentation for `valueParser.walk()` above.\n\n# License\n\nMIT © [Bogdan Chadkin](mailto:trysound@yandex.ru)\n# faye-websocket\n\n* Travis CI build: [](http://travis-ci.org/faye/faye-websocket-node)\n* Autobahn tests: [server](http://faye.jcoglan.com/autobahn/servers/),\n [client](http://faye.jcoglan.com/autobahn/clients/)\n\nThis is a general-purpose WebSocket implementation extracted from the\n[Faye](http://faye.jcoglan.com) project. It provides classes for easily building\nWebSocket servers and clients in Node. It does not provide a server itself, but\nrather makes it easy to handle WebSocket connections within an existing\n[Node](https://nodejs.org/) application. It does not provide any abstraction\nother than the standard [WebSocket\nAPI](https://html.spec.whatwg.org/multipage/comms.html#network).\n\nIt also provides an abstraction for handling\n[EventSource](https://html.spec.whatwg.org/multipage/comms.html#server-sent-events)\nconnections, which are one-way connections that allow the server to push data to\nthe client. They are based on streaming HTTP responses and can be easier to access\nvia proxies than WebSockets.\n\n## Installation\n\n```\n$ npm install faye-websocket\n```\n\n## Handling WebSocket connections in Node\n\nYou can handle WebSockets on the server side by listening for HTTP Upgrade\nrequests, and creating a new socket for the request. This socket object exposes\nthe usual WebSocket methods for receiving and sending messages. For example this\nis how you'd implement an echo server:\n\n```js\nvar WebSocket = require('faye-websocket'),\n http = require('http');\n\nvar server = http.createServer();\n\nserver.on('upgrade', function(request, socket, body) {\n if (WebSocket.isWebSocket(request)) {\n var ws = new WebSocket(request, socket, body);\n \n ws.on('message', function(event) {\n ws.send(event.data);\n });\n \n ws.on('close', function(event) {\n console.log('close', event.code, event.reason);\n ws = null;\n });\n }\n});\n\nserver.listen(8000);\n```\n\n`WebSocket` objects are also duplex streams, so you could replace the\n`ws.on('message', ...)` line with:\n\n```js\n ws.pipe(ws);\n```\n\nNote that under certain circumstances (notably a draft-76 client connecting\nthrough an HTTP proxy), the WebSocket handshake will not be complete after you\ncall `new WebSocket()` because the server will not have received the entire\nhandshake from the client yet. In this case, calls to `ws.send()` will buffer\nthe message in memory until the handshake is complete, at which point any\nbuffered messages will be sent to the client.\n\nIf you need to detect when the WebSocket handshake is complete, you can use the\n`onopen` event.\n\nIf the connection's protocol version supports it, you can call `ws.ping()` to\nsend a ping message and wait for the client's response. This method takes a\nmessage string, and an optional callback that fires when a matching pong message\nis received. It returns `true` if and only if a ping message was sent. If the\nclient does not support ping/pong, this method sends no data and returns\n`false`.\n\n```js\nws.ping('Mic check, one, two', function() {\n // fires when pong is received\n});\n```\n\n## Using the WebSocket client\n\nThe client supports both the plain-text `ws` protocol and the encrypted `wss`\nprotocol, and has exactly the same interface as a socket you would use in a web\nbrowser. On the wire it identifies itself as `hybi-13`.\n\n```js\nvar WebSocket = require('faye-websocket'),\n ws = new WebSocket.Client('ws://www.example.com/');\n\nws.on('open', function(event) {\n console.log('open');\n ws.send('Hello, world!');\n});\n\nws.on('message', function(event) {\n console.log('message', event.data);\n});\n\nws.on('close', function(event) {\n console.log('close', event.code, event.reason);\n ws = null;\n});\n```\n\nThe WebSocket client also lets you inspect the status and headers of the\nhandshake response via its `statusCode` and `headers` properties.\n\nTo connect via a proxy, set the `proxy` option to the HTTP origin of the proxy,\nincluding any authorization information, custom headers and TLS config you\nrequire. Only the `origin` setting is required.\n\n```js\nvar ws = new WebSocket.Client('ws://www.example.com/', [], {\n proxy: {\n origin: 'http://username:password@proxy.example.com',\n headers: {'User-Agent': 'node'},\n tls: {cert: fs.readFileSync('client.crt')}\n }\n});\n```\n\nThe `tls` value is an object that will be passed to\n[`tls.connect()`](https://nodejs.org/api/tls.html#tls_tls_connect_options_callback).\n\n## Subprotocol negotiation\n\nThe WebSocket protocol allows peers to select and identify the application\nprotocol to use over the connection. On the client side, you can set which\nprotocols the client accepts by passing a list of protocol names when you\nconstruct the socket:\n\n```js\nvar ws = new WebSocket.Client('ws://www.example.com/', ['irc', 'amqp']);\n```\n\nOn the server side, you can likewise pass in the list of protocols the server\nsupports after the other constructor arguments:\n\n```js\nvar ws = new WebSocket(request, socket, body, ['irc', 'amqp']);\n```\n\nIf the client and server agree on a protocol, both the client- and server-side\nsocket objects expose the selected protocol through the `ws.protocol` property.\n\n## Protocol extensions\n\nfaye-websocket is based on the\n[websocket-extensions](https://github.com/faye/websocket-extensions-node)\nframework that allows extensions to be negotiated via the\n`Sec-WebSocket-Extensions` header. To add extensions to a connection, pass an\narray of extensions to the `:extensions` option. For example, to add\n[permessage-deflate](https://github.com/faye/permessage-deflate-node):\n\n```js\nvar deflate = require('permessage-deflate');\n\nvar ws = new WebSocket(request, socket, body, [], {extensions: [deflate]});\n```\n\n## Initialization options\n\nBoth the server- and client-side classes allow an options object to be passed in\nat initialization time, for example:\n\n```js\nvar ws = new WebSocket(request, socket, body, protocols, options);\nvar ws = new WebSocket.Client(url, protocols, options);\n```\n\n`protocols` is an array of subprotocols as described above, or `null`.\n`options` is an optional object containing any of these fields:\n\n* `extensions` - an array of\n [websocket-extensions](https://github.com/faye/websocket-extensions-node)\n compatible extensions, as described above\n* `headers` - an object containing key-value pairs representing HTTP headers to\n be sent during the handshake process\n* `maxLength` - the maximum allowed size of incoming message frames, in bytes.\n The default value is `2^26 - 1`, or 1 byte short of 64 MiB.\n* `ping` - an integer that sets how often the WebSocket should send ping frames,\n measured in seconds\n\nThe client accepts some additional options:\n\n* `proxy` - settings for a proxy as described above\n* `net` - an object containing settings for the origin server that will be\n passed to\n [`net.connect()`](https://nodejs.org/api/net.html#net_socket_connect_options_connectlistener)\n* `tls` - an object containing TLS settings for the origin server, this will be\n passed to\n [`tls.connect()`](https://nodejs.org/api/tls.html#tls_tls_connect_options_callback)\n* `ca` - (legacy) a shorthand for passing `{tls: {ca: value}}`\n\n## WebSocket API\n\nBoth server- and client-side `WebSocket` objects support the following API.\n\n* <b>`on('open', function(event) {})`</b> fires when the socket connection is\n established. Event has no attributes.\n* <b>`on('message', function(event) {})`</b> fires when the socket receives a\n message. Event has one attribute, <b>`data`</b>, which is either a `String`\n (for text frames) or a `Buffer` (for binary frames).\n* <b>`on('error', function(event) {})`</b> fires when there is a protocol error\n due to bad data sent by the other peer. This event is purely informational,\n you do not need to implement error recover.\n* <b>`on('close', function(event) {})`</b> fires when either the client or the\n server closes the connection. Event has two optional attributes, <b>`code`</b>\n and <b>`reason`</b>, that expose the status code and message sent by the peer\n that closed the connection.\n* <b>`send(message)`</b> accepts either a `String` or a `Buffer` and sends a\n text or binary message over the connection to the other peer.\n* <b>`ping(message, function() {})`</b> sends a ping frame with an optional\n message and fires the callback when a matching pong is received.\n* <b>`close(code, reason)`</b> closes the connection, sending the given status\n code and reason text, both of which are optional.\n* <b>`version`</b> is a string containing the version of the `WebSocket`\n protocol the connection is using.\n* <b>`protocol`</b> is a string (which may be empty) identifying the subprotocol\n the socket is using.\n\n## Handling EventSource connections in Node\n\nEventSource connections provide a very similar interface, although because they\nonly allow the server to send data to the client, there is no `onmessage` API.\nEventSource allows the server to push text messages to the client, where each\nmessage has an optional event-type and ID.\n\n```js\nvar WebSocket = require('faye-websocket'),\n EventSource = WebSocket.EventSource,\n http = require('http');\n\nvar server = http.createServer();\n\nserver.on('request', function(request, response) {\n if (EventSource.isEventSource(request)) {\n var es = new EventSource(request, response);\n console.log('open', es.url, es.lastEventId);\n \n // Periodically send messages\n var loop = setInterval(function() { es.send('Hello') }, 1000);\n \n es.on('close', function() {\n clearInterval(loop);\n es = null;\n });\n \n } else {\n // Normal HTTP request\n response.writeHead(200, {'Content-Type': 'text/plain'});\n response.end('Hello');\n }\n});\n\nserver.listen(8000);\n```\n\nThe `send` method takes two optional parameters, `event` and `id`. The default\nevent-type is `'message'` with no ID. For example, to send a `notification`\nevent with ID `99`:\n\n```js\nes.send('Breaking News!', {event: 'notification', id: '99'});\n```\n\nThe `EventSource` object exposes the following properties:\n\n* <b>`url`</b> is a string containing the URL the client used to create the\n EventSource.\n* <b>`lastEventId`</b> is a string containing the last event ID received by the\n client. You can use this when the client reconnects after a dropped connection\n to determine which messages need resending.\n\nWhen you initialize an EventSource with ` new EventSource()`, you can pass\nconfiguration options after the `response` parameter. Available options are:\n\n* <b>`headers`</b> is an object containing custom headers to be set on the\n EventSource response.\n* <b>`retry`</b> is a number that tells the client how long (in seconds) it\n should wait after a dropped connection before attempting to reconnect.\n* <b>`ping`</b> is a number that tells the server how often (in seconds) to send\n 'ping' packets to the client to keep the connection open, to defeat timeouts\n set by proxies. The client will ignore these messages.\n\nFor example, this creates a connection that allows access from any origin, pings\nevery 15 seconds and is retryable every 10 seconds if the connection is broken:\n\n```js\nvar es = new EventSource(request, response, {\n headers: {'Access-Control-Allow-Origin': '*'},\n ping: 15,\n retry: 10\n});\n```\n\nYou can send a ping message at any time by calling `es.ping()`. Unlike\nWebSocket, the client does not send a response to this; it is merely to send\nsome data over the wire to keep the connection alive.\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2010-2017 James Coglan\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the 'Software'), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\nFOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\nCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\nIN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\nCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# define-property [](http://badge.fury.io/js/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i define-property --save\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## Related projects\n\n* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)\n* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._\n# move-concurrently\n\nMove files and directories.\n\n```\nconst move = require('move-concurrently')\nmove('/path/to/thing', '/new/path/thing').then(() => {\n // thing is now moved!\n}).catch(err => {\n // oh no!\n})\n```\n\nUses `rename` to move things as fast as possible.\n\nIf you `move` across devices or on filesystems that don't support renaming\nlarge directories. That is, situations that result in `rename` returning\nthe `EXDEV` error, then `move` will fallback to copy + delete.\n\nWhen recursively copying directories it will first try to rename the\ncontents before falling back to copying. While this will be slightly slower\nin true cross-device scenarios, it is MUCH faster in cases where the\nfilesystem can't handle directory renames.\n\nWhen copying ownership is maintained when running as root. Permissions are\nalways maintained. On Windows, if symlinks are unavailable then junctions\nwill be used.\n\n## INTERFACE\n\n### move(from, to, options) → Promise\n\nRecursively moves `from` to `to` and resolves its promise when finished.\nIf `to` already exists then the promise will be rejected with an `EEXIST`\nerror.\n\nStarts by trying to rename `from` to `to`.\n\nOptions are:\n\n* maxConcurrency – (Default: `1`) The maximum number of concurrent copies to do at once.\n* isWindows - (Default: `process.platform === 'win32'`) If true enables Windows symlink semantics. This requires\n an extra `stat` to determine if the destination of a symlink is a file or directory. If symlinking a directory\n fails then we'll try making a junction instead.\n\nOptions can also include dependency injection:\n\n* Promise - (Default: `global.Promise`) The promise implementation to use, defaults to Node's.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* writeStreamAtomic - (Default: `require('fs-write-stream-atomic')`) The\n implementation of `writeStreamAtomic` to use. Used to inject a mock.\n* getuid - (Default: `process.getuid`) A function that returns the current UID. Used to inject a mock.\n# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/safe-buffer\n[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg\n[npm-url]: https://npmjs.org/package/safe-buffer\n[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg\n[downloads-url]: https://npmjs.org/package/safe-buffer\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n#### Safer Node.js Buffer API\n\n**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,\n`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**\n\n**Uses the built-in implementation when available.**\n\n## install\n\n```\nnpm install safe-buffer\n```\n\n## usage\n\nThe goal of this package is to provide a safe replacement for the node.js `Buffer`.\n\nIt's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to\nthe top of your node.js modules:\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n\n// Existing buffer code will continue to work without issues:\n\nnew Buffer('hey', 'utf8')\nnew Buffer([1, 2, 3], 'utf8')\nnew Buffer(obj)\nnew Buffer(16) // create an uninitialized buffer (potentially unsafe)\n\n// But you can use these new explicit APIs to make clear what you want:\n\nBuffer.from('hey', 'utf8') // convert from many types to a Buffer\nBuffer.alloc(16) // create a zero-filled buffer (safe)\nBuffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)\n```\n\n## api\n\n### Class Method: Buffer.from(array)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `array` {Array}\n\nAllocates a new `Buffer` using an `array` of octets.\n\n```js\nconst buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);\n // creates a new Buffer containing ASCII bytes\n // ['b','u','f','f','e','r']\n```\n\nA `TypeError` will be thrown if `array` is not an `Array`.\n\n### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or\n a `new ArrayBuffer()`\n* `byteOffset` {Number} Default: `0`\n* `length` {Number} Default: `arrayBuffer.length - byteOffset`\n\nWhen passed a reference to the `.buffer` property of a `TypedArray` instance,\nthe newly created `Buffer` will share the same allocated memory as the\nTypedArray.\n\n```js\nconst arr = new Uint16Array(2);\narr[0] = 5000;\narr[1] = 4000;\n\nconst buf = Buffer.from(arr.buffer); // shares the memory with arr;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 a0 0f>\n\n// changing the TypedArray changes the Buffer also\narr[1] = 6000;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 70 17>\n```\n\nThe optional `byteOffset` and `length` arguments specify a memory range within\nthe `arrayBuffer` that will be shared by the `Buffer`.\n\n```js\nconst ab = new ArrayBuffer(10);\nconst buf = Buffer.from(ab, 0, 2);\nconsole.log(buf.length);\n // Prints: 2\n```\n\nA `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.\n\n### Class Method: Buffer.from(buffer)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `buffer` {Buffer}\n\nCopies the passed `buffer` data onto a new `Buffer` instance.\n\n```js\nconst buf1 = Buffer.from('buffer');\nconst buf2 = Buffer.from(buf1);\n\nbuf1[0] = 0x61;\nconsole.log(buf1.toString());\n // 'auffer'\nconsole.log(buf2.toString());\n // 'buffer' (copy is not changed)\n```\n\nA `TypeError` will be thrown if `buffer` is not a `Buffer`.\n\n### Class Method: Buffer.from(str[, encoding])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `str` {String} String to encode.\n* `encoding` {String} Encoding to use, Default: `'utf8'`\n\nCreates a new `Buffer` containing the given JavaScript string `str`. If\nprovided, the `encoding` parameter identifies the character encoding.\nIf not provided, `encoding` defaults to `'utf8'`.\n\n```js\nconst buf1 = Buffer.from('this is a tést');\nconsole.log(buf1.toString());\n // prints: this is a tést\nconsole.log(buf1.toString('ascii'));\n // prints: this is a tC)st\n\nconst buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');\nconsole.log(buf2.toString());\n // prints: this is a tést\n```\n\nA `TypeError` will be thrown if `str` is not a string.\n\n### Class Method: Buffer.alloc(size[, fill[, encoding]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n* `fill` {Value} Default: `undefined`\n* `encoding` {String} Default: `utf8`\n\nAllocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the\n`Buffer` will be *zero-filled*.\n\n```js\nconst buf = Buffer.alloc(5);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nThe `size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nIf `fill` is specified, the allocated `Buffer` will be initialized by calling\n`buf.fill(fill)`. See [`buf.fill()`][] for more information.\n\n```js\nconst buf = Buffer.alloc(5, 'a');\nconsole.log(buf);\n // <Buffer 61 61 61 61 61>\n```\n\nIf both `fill` and `encoding` are specified, the allocated `Buffer` will be\ninitialized by calling `buf.fill(fill, encoding)`. For example:\n\n```js\nconst buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');\nconsole.log(buf);\n // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>\n```\n\nCalling `Buffer.alloc(size)` can be significantly slower than the alternative\n`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance\ncontents will *never contain sensitive data*.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### Class Method: Buffer.allocUnsafe(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must\nbe less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit\narchitectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is\nthrown. A zero-length Buffer will be created if a `size` less than or equal to\n0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\n```js\nconst buf = Buffer.allocUnsafe(5);\nconsole.log(buf);\n // <Buffer 78 e0 82 02 01>\n // (octets will be different, every time)\nbuf.fill(0);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nA `TypeError` will be thrown if `size` is not a number.\n\nNote that the `Buffer` module pre-allocates an internal `Buffer` instance of\nsize `Buffer.poolSize` that is used as a pool for the fast allocation of new\n`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated\n`new Buffer(size)` constructor) only when `size` is less than or equal to\n`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default\nvalue of `Buffer.poolSize` is `8192` but can be modified.\n\nUse of this pre-allocated internal memory pool is a key difference between\ncalling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.\nSpecifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer\npool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal\nBuffer pool if `size` is less than or equal to half `Buffer.poolSize`. The\ndifference is subtle but can be important when an application requires the\nadditional performance that `Buffer.allocUnsafe(size)` provides.\n\n### Class Method: Buffer.allocUnsafeSlow(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The\n`size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\nWhen using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,\nallocations under 4KB are, by default, sliced from a single pre-allocated\n`Buffer`. This allows applications to avoid the garbage collection overhead of\ncreating many individually allocated Buffers. This approach improves both\nperformance and memory usage by eliminating the need to track and cleanup as\nmany `Persistent` objects.\n\nHowever, in the case where a developer may need to retain a small chunk of\nmemory from a pool for an indeterminate amount of time, it may be appropriate\nto create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then\ncopy out the relevant bits.\n\n```js\n// need to keep around a few small chunks of memory\nconst store = [];\n\nsocket.on('readable', () => {\n const data = socket.read();\n // allocate for retained data\n const sb = Buffer.allocUnsafeSlow(10);\n // copy the data into the new allocation\n data.copy(sb, 0, 0, 10);\n store.push(sb);\n});\n```\n\nUse of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*\na developer has observed undue memory retention in their applications.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### All the Rest\n\nThe rest of the `Buffer` API is exactly the same as in node.js.\n[See the docs](https://nodejs.org/api/buffer.html).\n\n## Related links\n\n- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)\n- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)\n\n## Why is `Buffer` unsafe?\n\nToday, the node.js `Buffer` constructor is overloaded to handle many different argument\ntypes like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),\n`ArrayBuffer`, and also `Number`.\n\nThe API is optimized for convenience: you can throw any type at it, and it will try to do\nwhat you want.\n\nBecause the Buffer constructor is so powerful, you often see code like this:\n\n```js\n// Convert UTF-8 strings to hex\nfunction toHex (str) {\n return new Buffer(str).toString('hex')\n}\n```\n\n***But what happens if `toHex` is called with a `Number` argument?***\n\n### Remote Memory Disclosure\n\nIf an attacker can make your program call the `Buffer` constructor with a `Number`\nargument, then they can make it allocate uninitialized memory from the node.js process.\nThis could potentially disclose TLS private keys, user data, or database passwords.\n\nWhen the `Buffer` constructor is passed a `Number` argument, it returns an\n**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like\nthis, you **MUST** overwrite the contents before returning it to the user.\n\nFrom the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):\n\n> `new Buffer(size)`\n>\n> - `size` Number\n>\n> The underlying memory for `Buffer` instances created in this way is not initialized.\n> **The contents of a newly created `Buffer` are unknown and could contain sensitive\n> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.\n\n(Emphasis our own.)\n\nWhenever the programmer intended to create an uninitialized `Buffer` you often see code\nlike this:\n\n```js\nvar buf = new Buffer(16)\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### Would this ever be a problem in real code?\n\nYes. It's surprisingly common to forget to check the type of your variables in a\ndynamically-typed language like JavaScript.\n\nUsually the consequences of assuming the wrong type is that your program crashes with an\nuncaught exception. But the failure mode for forgetting to check the type of arguments to\nthe `Buffer` constructor is more catastrophic.\n\nHere's an example of a vulnerable service that takes a JSON payload and converts it to\nhex:\n\n```js\n// Take a JSON payload {str: \"some string\"} and convert it to hex\nvar server = http.createServer(function (req, res) {\n var data = ''\n req.setEncoding('utf8')\n req.on('data', function (chunk) {\n data += chunk\n })\n req.on('end', function () {\n var body = JSON.parse(data)\n res.end(new Buffer(body.str).toString('hex'))\n })\n})\n\nserver.listen(8080)\n```\n\nIn this example, an http client just has to send:\n\n```json\n{\n \"str\": 1000\n}\n```\n\nand it will get back 1,000 bytes of uninitialized memory from the server.\n\nThis is a very serious bug. It's similar in severity to the\n[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process\nmemory by remote attackers.\n\n### Which real-world packages were vulnerable?\n\n#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)\n\n[Mathias Buus](https://github.com/mafintosh) and I\n([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,\n[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow\nanyone on the internet to send a series of messages to a user of `bittorrent-dht` and get\nthem to reveal 20 bytes at a time of uninitialized memory from the node.js process.\n\nHere's\n[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)\nthat fixed it. We released a new fixed version, created a\n[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all\nvulnerable versions on npm so users will get a warning to upgrade to a newer version.\n\n#### [`ws`](https://www.npmjs.com/package/ws)\n\nThat got us wondering if there were other vulnerable packages. Sure enough, within a short\nperiod of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the\nmost popular WebSocket implementation in node.js.\n\nIf certain APIs were called with `Number` parameters instead of `String` or `Buffer` as\nexpected, then uninitialized server memory would be disclosed to the remote peer.\n\nThese were the vulnerable methods:\n\n```js\nsocket.send(number)\nsocket.ping(number)\nsocket.pong(number)\n```\n\nHere's a vulnerable socket server with some echo functionality:\n\n```js\nserver.on('connection', function (socket) {\n socket.on('message', function (message) {\n message = JSON.parse(message)\n if (message.type === 'echo') {\n socket.send(message.data) // send back the user's message\n }\n })\n})\n```\n\n`socket.send(number)` called on the server, will disclose server memory.\n\nHere's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue\nwas fixed, with a more detailed explanation. Props to\n[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the\n[Node Security Project disclosure](https://nodesecurity.io/advisories/67).\n\n### What's the solution?\n\nIt's important that node.js offers a fast way to get memory otherwise performance-critical\napplications would needlessly get a lot slower.\n\nBut we need a better way to *signal our intent* as programmers. **When we want\nuninitialized memory, we should request it explicitly.**\n\nSensitive functionality should not be packed into a developer-friendly API that loosely\naccepts many different types. This type of API encourages the lazy practice of passing\nvariables in without checking the type very carefully.\n\n#### A new API: `Buffer.allocUnsafe(number)`\n\nThe functionality of creating buffers with uninitialized memory should be part of another\nAPI. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that\nfrequently gets user input of all sorts of different types passed into it.\n\n```js\nvar buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### How do we fix node.js core?\n\nWe sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as\n`semver-major`) which defends against one case:\n\n```js\nvar str = 16\nnew Buffer(str, 'utf8')\n```\n\nIn this situation, it's implied that the programmer intended the first argument to be a\nstring, since they passed an encoding as a second argument. Today, node.js will allocate\nuninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not\nwhat the programmer intended.\n\nBut this is only a partial solution, since if the programmer does `new Buffer(variable)`\n(without an `encoding` parameter) there's no way to know what they intended. If `variable`\nis sometimes a number, then uninitialized memory will sometimes be returned.\n\n### What's the real long-term fix?\n\nWe could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when\nwe need uninitialized memory. But that would break 1000s of packages.\n\n~~We believe the best solution is to:~~\n\n~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~\n\n~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~\n\n#### Update\n\nWe now support adding three new APIs:\n\n- `Buffer.from(value)` - convert from any type to a buffer\n- `Buffer.alloc(size)` - create a zero-filled buffer\n- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size\n\nThis solves the core problem that affected `ws` and `bittorrent-dht` which is\n`Buffer(variable)` getting tricked into taking a number argument.\n\nThis way, existing code continues working and the impact on the npm ecosystem will be\nminimal. Over time, npm maintainers can migrate performance-critical code to use\n`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.\n\n### Conclusion\n\nWe think there's a serious design issue with the `Buffer` API as it exists today. It\npromotes insecure software by putting high-risk functionality into a convenient API\nwith friendly \"developer ergonomics\".\n\nThis wasn't merely a theoretical exercise because we found the issue in some of the\nmost popular npm packages.\n\nFortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of\n`buffer`.\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n```\n\nEventually, we hope that node.js core can switch to this new, safer behavior. We believe\nthe impact on the ecosystem would be minimal since it's not a breaking change.\nWell-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while\nolder, insecure packages would magically become safe from this attack vector.\n\n## links\n\n- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)\n- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)\n- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)\n\n## credit\n\nThe original issues in `bittorrent-dht`\n([disclosure](https://nodesecurity.io/advisories/68)) and\n`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by\n[Mathias Buus](https://github.com/mafintosh) and\n[Feross Aboukhadijeh](http://feross.org/).\n\nThanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues\nand for his work running the [Node Security Project](https://nodesecurity.io/).\n\nThanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and\nauditing the code.\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)\n# braces [](https://www.npmjs.com/package/braces) [](https://npmjs.org/package/braces) [](https://npmjs.org/package/braces) [](https://travis-ci.org/micromatch/braces) [](https://ci.appveyor.com/project/micromatch/braces)\n\n> Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save braces\n```\n\n## Why use braces?\n\nBrace patterns are great for matching ranges. Users (and implementors) shouldn't have to think about whether or not they will break their application (or yours) from accidentally defining an aggressive brace pattern. _Braces is the only library that offers a [solution to this problem](#performance)_.\n\n* **Safe(r)**: Braces isn't vulnerable to DoS attacks like [brace-expansion](https://github.com/juliangruber/brace-expansion), [minimatch](https://github.com/isaacs/minimatch) and [multimatch](https://github.com/sindresorhus/multimatch) (a different bug than the [other regex DoS bug](https://medium.com/node-security/minimatch-redos-vulnerability-590da24e6d3c#.jew0b6mpc)).\n* **Accurate**: complete support for the [Bash 4.3 Brace Expansion](www.gnu.org/software/bash/) specification (passes all of the Bash braces tests)\n* **[fast and performant](#benchmarks)**: Starts fast, runs fast and [scales well](#performance) as patterns increase in complexity.\n* **Organized code base**: with parser and compiler that are eas(y|ier) to maintain and update when edge cases crop up.\n* **Well-tested**: thousands of test assertions. Passes 100% of the [minimatch](https://github.com/isaacs/minimatch) and [brace-expansion](https://github.com/juliangruber/brace-expansion) unit tests as well (as of the writing of this).\n\n## Usage\n\nThe main export is a function that takes one or more brace `patterns` and `options`.\n\n```js\nvar braces = require('braces');\nbraces(pattern[, options]);\n```\n\nBy default, braces returns an optimized regex-source string. To get an array of brace patterns, use `brace.expand()`.\n\nThe following section explains the difference in more detail. _(If you're curious about \"why\" braces does this by default, see [brace matching pitfalls](#brace-matching-pitfalls)_.\n\n### Optimized vs. expanded braces\n\n**Optimized**\n\nBy default, patterns are optimized for regex and matching:\n\n```js\nconsole.log(braces('a/{x,y,z}/b'));\n//=> ['a/(x|y|z)/b']\n```\n\n**Expanded**\n\nTo expand patterns the same way as Bash or [minimatch](https://github.com/isaacs/minimatch), use the [.expand](#expand) method:\n\n```js\nconsole.log(braces.expand('a/{x,y,z}/b'));\n//=> ['a/x/b', 'a/y/b', 'a/z/b']\n```\n\nOr use [options.expand](#optionsexpand):\n\n```js\nconsole.log(braces('a/{x,y,z}/b', {expand: true}));\n//=> ['a/x/b', 'a/y/b', 'a/z/b']\n```\n\n## Features\n\n* [lists](#lists): Supports \"lists\": `a/{b,c}/d` => `['a/b/d', 'a/c/d']`\n* [sequences](#sequences): Supports alphabetical or numerical \"sequences\" (ranges): `{1..3}` => `['1', '2', '3']`\n* [steps](#steps): Supports \"steps\" or increments: `{2..10..2}` => `['2', '4', '6', '8', '10']`\n* [escaping](#escaping)\n* [options](#options)\n\n### Lists\n\nUses [fill-range](https://github.com/jonschlinkert/fill-range) for expanding alphabetical or numeric lists:\n\n```js\nconsole.log(braces('a/{foo,bar,baz}/*.js'));\n//=> ['a/(foo|bar|baz)/*.js']\n\nconsole.log(braces.expand('a/{foo,bar,baz}/*.js'));\n//=> ['a/foo/*.js', 'a/bar/*.js', 'a/baz/*.js']\n```\n\n### Sequences\n\nUses [fill-range](https://github.com/jonschlinkert/fill-range) for expanding alphabetical or numeric ranges (bash \"sequences\"):\n\n```js\nconsole.log(braces.expand('{1..3}')); // ['1', '2', '3']\nconsole.log(braces.expand('a{01..03}b')); // ['a01b', 'a02b', 'a03b']\nconsole.log(braces.expand('a{1..3}b')); // ['a1b', 'a2b', 'a3b']\nconsole.log(braces.expand('{a..c}')); // ['a', 'b', 'c']\nconsole.log(braces.expand('foo/{a..c}')); // ['foo/a', 'foo/b', 'foo/c']\n\n// supports padded ranges\nconsole.log(braces('a{01..03}b')); //=> [ 'a(0[1-3])b' ]\nconsole.log(braces('a{001..300}b')); //=> [ 'a(0{2}[1-9]|0[1-9][0-9]|[12][0-9]{2}|300)b' ]\n```\n\n### Steps\n\nSteps, or increments, may be used with ranges:\n\n```js\nconsole.log(braces.expand('{2..10..2}'));\n//=> ['2', '4', '6', '8', '10']\n\nconsole.log(braces('{2..10..2}'));\n//=> ['(2|4|6|8|10)']\n```\n\nWhen the [.optimize](#optimize) method is used, or [options.optimize](#optionsoptimize) is set to true, sequences are passed to [to-regex-range](https://github.com/jonschlinkert/to-regex-range) for expansion.\n\n### Nesting\n\nBrace patterns may be nested. The results of each expanded string are not sorted, and left to right order is preserved.\n\n**\"Expanded\" braces**\n\n```js\nconsole.log(braces.expand('a{b,c,/{x,y}}/e'));\n//=> ['ab/e', 'ac/e', 'a/x/e', 'a/y/e']\n\nconsole.log(braces.expand('a/{x,{1..5},y}/c'));\n//=> ['a/x/c', 'a/1/c', 'a/2/c', 'a/3/c', 'a/4/c', 'a/5/c', 'a/y/c']\n```\n\n**\"Optimized\" braces**\n\n```js\nconsole.log(braces('a{b,c,/{x,y}}/e'));\n//=> ['a(b|c|/(x|y))/e']\n\nconsole.log(braces('a/{x,{1..5},y}/c'));\n//=> ['a/(x|([1-5])|y)/c']\n```\n\n### Escaping\n\n**Escaping braces**\n\nA brace pattern will not be expanded or evaluted if _either the opening or closing brace is escaped_:\n\n```js\nconsole.log(braces.expand('a\\\\{d,c,b}e'));\n//=> ['a{d,c,b}e']\n\nconsole.log(braces.expand('a{d,c,b\\\\}e'));\n//=> ['a{d,c,b}e']\n```\n\n**Escaping commas**\n\nCommas inside braces may also be escaped:\n\n```js\nconsole.log(braces.expand('a{b\\\\,c}d'));\n//=> ['a{b,c}d']\n\nconsole.log(braces.expand('a{d\\\\,c,b}e'));\n//=> ['ad,ce', 'abe']\n```\n\n**Single items**\n\nFollowing bash conventions, a brace pattern is also not expanded when it contains a single character:\n\n```js\nconsole.log(braces.expand('a{b}c'));\n//=> ['a{b}c']\n```\n\n## Options\n\n### options.maxLength\n\n**Type**: `Number`\n\n**Default**: `65,536`\n\n**Description**: Limit the length of the input string. Useful when the input string is generated or your application allows users to pass a string, et cetera.\n\n```js\nconsole.log(braces('a/{b,c}/d', { maxLength: 3 })); //=> throws an error\n```\n\n### options.expand\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Description**: Generate an \"expanded\" brace pattern (this option is unncessary with the `.expand` method, which does the same thing).\n\n```js\nconsole.log(braces('a/{b,c}/d', {expand: true}));\n//=> [ 'a/b/d', 'a/c/d' ]\n```\n\n### options.optimize\n\n**Type**: `Boolean`\n\n**Default**: `true`\n\n**Description**: Enabled by default.\n\n```js\nconsole.log(braces('a/{b,c}/d'));\n//=> [ 'a/(b|c)/d' ]\n```\n\n### options.nodupes\n\n**Type**: `Boolean`\n\n**Default**: `true`\n\n**Description**: Duplicates are removed by default. To keep duplicates, pass `{nodupes: false}` on the options\n\n### options.rangeLimit\n\n**Type**: `Number`\n\n**Default**: `250`\n\n**Description**: When `braces.expand()` is used, or `options.expand` is true, brace patterns will automatically be [optimized](#optionsoptimize) when the difference between the range minimum and range maximum exceeds the `rangeLimit`. This is to prevent huge ranges from freezing your application.\n\nYou can set this to any number, or change `options.rangeLimit` to `Inifinity` to disable this altogether.\n\n**Examples**\n\n```js\n// pattern exceeds the \"rangeLimit\", so it's optimized automatically\nconsole.log(braces.expand('{1..1000}'));\n//=> ['([1-9]|[1-9][0-9]{1,2}|1000)']\n\n// pattern does not exceed \"rangeLimit\", so it's NOT optimized\nconsole.log(braces.expand('{1..100}'));\n//=> ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59', '60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '100']\n```\n\n### options.transform\n\n**Type**: `Function`\n\n**Default**: `undefined`\n\n**Description**: Customize range expansion.\n\n```js\nvar range = braces.expand('x{a..e}y', {\n transform: function(str) {\n return 'foo' + str;\n }\n});\n\nconsole.log(range);\n//=> [ 'xfooay', 'xfooby', 'xfoocy', 'xfoody', 'xfooey' ]\n```\n\n### options.quantifiers\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Description**: In regular expressions, quanitifiers can be used to specify how many times a token can be repeated. For example, `a{1,3}` will match the letter `a` one to three times.\n\nUnfortunately, regex quantifiers happen to share the same syntax as [Bash lists](#lists)\n\nThe `quantifiers` option tells braces to detect when [regex quantifiers](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#quantifiers) are defined in the given pattern, and not to try to expand them as lists.\n\n**Examples**\n\n```js\nvar braces = require('braces');\nconsole.log(braces('a/b{1,3}/{x,y,z}'));\n//=> [ 'a/b(1|3)/(x|y|z)' ]\nconsole.log(braces('a/b{1,3}/{x,y,z}', {quantifiers: true}));\n//=> [ 'a/b{1,3}/(x|y|z)' ]\nconsole.log(braces('a/b{1,3}/{x,y,z}', {quantifiers: true, expand: true}));\n//=> [ 'a/b{1,3}/x', 'a/b{1,3}/y', 'a/b{1,3}/z' ]\n```\n\n### options.unescape\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Description**: Strip backslashes that were used for escaping from the result.\n\n## What is \"brace expansion\"?\n\nBrace expansion is a type of parameter expansion that was made popular by unix shells for generating lists of strings, as well as regex-like matching when used alongside wildcards (globs).\n\nIn addition to \"expansion\", braces are also used for matching. In other words:\n\n* [brace expansion](#brace-expansion) is for generating new lists\n* [brace matching](#brace-matching) is for filtering existing lists\n\n<details>\n<summary><strong>More about brace expansion</strong> (click to expand)</summary>\n\nThere are two main types of brace expansion:\n\n1. **lists**: which are defined using comma-separated values inside curly braces: `{a,b,c}`\n2. **sequences**: which are defined using a starting value and an ending value, separated by two dots: `a{1..3}b`. Optionally, a third argument may be passed to define a \"step\" or increment to use: `a{1..100..10}b`. These are also sometimes referred to as \"ranges\".\n\nHere are some example brace patterns to illustrate how they work:\n\n**Sets**\n\n```\n{a,b,c} => a b c\n{a,b,c}{1,2} => a1 a2 b1 b2 c1 c2\n```\n\n**Sequences**\n\n```\n{1..9} => 1 2 3 4 5 6 7 8 9\n{4..-4} => 4 3 2 1 0 -1 -2 -3 -4\n{1..20..3} => 1 4 7 10 13 16 19\n{a..j} => a b c d e f g h i j\n{j..a} => j i h g f e d c b a\n{a..z..3} => a d g j m p s v y\n```\n\n**Combination**\n\nSets and sequences can be mixed together or used along with any other strings.\n\n```\n{a,b,c}{1..3} => a1 a2 a3 b1 b2 b3 c1 c2 c3\nfoo/{a,b,c}/bar => foo/a/bar foo/b/bar foo/c/bar\n```\n\nThe fact that braces can be \"expanded\" from relatively simple patterns makes them ideal for quickly generating test fixtures, file paths, and similar use cases.\n\n## Brace matching\n\nIn addition to _expansion_, brace patterns are also useful for performing regular-expression-like matching.\n\nFor example, the pattern `foo/{1..3}/bar` would match any of following strings:\n\n```\nfoo/1/bar\nfoo/2/bar\nfoo/3/bar\n```\n\nBut not:\n\n```\nbaz/1/qux\nbaz/2/qux\nbaz/3/qux\n```\n\nBraces can also be combined with [glob patterns](https://github.com/jonschlinkert/micromatch) to perform more advanced wildcard matching. For example, the pattern `*/{1..3}/*` would match any of following strings:\n\n```\nfoo/1/bar\nfoo/2/bar\nfoo/3/bar\nbaz/1/qux\nbaz/2/qux\nbaz/3/qux\n```\n\n## Brace matching pitfalls\n\nAlthough brace patterns offer a user-friendly way of matching ranges or sets of strings, there are also some major disadvantages and potential risks you should be aware of.\n\n### tldr\n\n**\"brace bombs\"**\n\n* brace expansion can eat up a huge amount of processing resources\n* as brace patterns increase _linearly in size_, the system resources required to expand the pattern increase exponentially\n* users can accidentally (or intentially) exhaust your system's resources resulting in the equivalent of a DoS attack (bonus: no programming knowledge is required!)\n\nFor a more detailed explanation with examples, see the [geometric complexity](#geometric-complexity) section.\n\n### The solution\n\nJump to the [performance section](#performance) to see how Braces solves this problem in comparison to other libraries.\n\n### Geometric complexity\n\nAt minimum, brace patterns with sets limited to two elements have quadradic or `O(n^2)` complexity. But the complexity of the algorithm increases exponentially as the number of sets, _and elements per set_, increases, which is `O(n^c)`.\n\nFor example, the following sets demonstrate quadratic (`O(n^2)`) complexity:\n\n```\n{1,2}{3,4} => (2X2) => 13 14 23 24\n{1,2}{3,4}{5,6} => (2X2X2) => 135 136 145 146 235 236 245 246\n```\n\nBut add an element to a set, and we get a n-fold Cartesian product with `O(n^c)` complexity:\n\n```\n{1,2,3}{4,5,6}{7,8,9} => (3X3X3) => 147 148 149 157 158 159 167 168 169 247 248 \n 249 257 258 259 267 268 269 347 348 349 357 \n 358 359 367 368 369\n```\n\nNow, imagine how this complexity grows given that each element is a n-tuple:\n\n```\n{1..100}{1..100} => (100X100) => 10,000 elements (38.4 kB)\n{1..100}{1..100}{1..100} => (100X100X100) => 1,000,000 elements (5.76 MB)\n```\n\nAlthough these examples are clearly contrived, they demonstrate how brace patterns can quickly grow out of control.\n\n**More information**\n\nInterested in learning more about brace expansion?\n\n* [linuxjournal/bash-brace-expansion](http://www.linuxjournal.com/content/bash-brace-expansion)\n* [rosettacode/Brace_expansion](https://rosettacode.org/wiki/Brace_expansion)\n* [cartesian product](https://en.wikipedia.org/wiki/Cartesian_product)\n\n</details>\n\n## Performance\n\nBraces is not only screaming fast, it's also more accurate the other brace expansion libraries.\n\n### Better algorithms\n\nFortunately there is a solution to the [\"brace bomb\" problem](#brace-matching-pitfalls): _don't expand brace patterns into an array when they're used for matching_.\n\nInstead, convert the pattern into an optimized regular expression. This is easier said than done, and braces is the only library that does this currently.\n\n**The proof is in the numbers**\n\nMinimatch gets exponentially slower as patterns increase in complexity, braces does not. The following results were generated using `braces()` and `minimatch.braceExpand()`, respectively.\n\n| **Pattern** | **braces** | **[minimatch](https://github.com/isaacs/minimatch)** | \n| --- | --- | --- |\n| `{1..9007199254740991}`<sup class=\"footnote-ref\"><a href=\"#fn1\" id=\"fnref1\">[1]</a></sup> | `298 B` (5ms 459μs) | N/A (freezes) |\n| `{1..1000000000000000}` | `41 B` (1ms 15μs) | N/A (freezes) |\n| `{1..100000000000000}` | `40 B` (890μs) | N/A (freezes) |\n| `{1..10000000000000}` | `39 B` (2ms 49μs) | N/A (freezes) |\n| `{1..1000000000000}` | `38 B` (608μs) | N/A (freezes) |\n| `{1..100000000000}` | `37 B` (397μs) | N/A (freezes) |\n| `{1..10000000000}` | `35 B` (983μs) | N/A (freezes) |\n| `{1..1000000000}` | `34 B` (798μs) | N/A (freezes) |\n| `{1..100000000}` | `33 B` (733μs) | N/A (freezes) |\n| `{1..10000000}` | `32 B` (5ms 632μs) | `78.89 MB` (16s 388ms 569μs) |\n| `{1..1000000}` | `31 B` (1ms 381μs) | `6.89 MB` (1s 496ms 887μs) |\n| `{1..100000}` | `30 B` (950μs) | `588.89 kB` (146ms 921μs) |\n| `{1..10000}` | `29 B` (1ms 114μs) | `48.89 kB` (14ms 187μs) |\n| `{1..1000}` | `28 B` (760μs) | `3.89 kB` (1ms 453μs) |\n| `{1..100}` | `22 B` (345μs) | `291 B` (196μs) |\n| `{1..10}` | `10 B` (533μs) | `20 B` (37μs) |\n| `{1..3}` | `7 B` (190μs) | `5 B` (27μs) |\n\n### Faster algorithms\n\nWhen you need expansion, braces is still much faster.\n\n_(the following results were generated using `braces.expand()` and `minimatch.braceExpand()`, respectively)_\n\n| **Pattern** | **braces** | **[minimatch](https://github.com/isaacs/minimatch)** | \n| --- | --- | --- |\n| `{1..10000000}` | `78.89 MB` (2s 698ms 642μs) | `78.89 MB` (18s 601ms 974μs) |\n| `{1..1000000}` | `6.89 MB` (458ms 576μs) | `6.89 MB` (1s 491ms 621μs) |\n| `{1..100000}` | `588.89 kB` (20ms 728μs) | `588.89 kB` (156ms 919μs) |\n| `{1..10000}` | `48.89 kB` (2ms 202μs) | `48.89 kB` (13ms 641μs) |\n| `{1..1000}` | `3.89 kB` (1ms 796μs) | `3.89 kB` (1ms 958μs) |\n| `{1..100}` | `291 B` (424μs) | `291 B` (211μs) |\n| `{1..10}` | `20 B` (487μs) | `20 B` (72μs) |\n| `{1..3}` | `5 B` (166μs) | `5 B` (27μs) |\n\nIf you'd like to run these comparisons yourself, see [test/support/generate.js](test/support/generate.js).\n\n## Benchmarks\n\n### Running benchmarks\n\nInstall dev dependencies:\n\n```bash\nnpm i -d && npm benchmark\n```\n\n### Latest results\n\n```bash\nBenchmarking: (8 of 8)\n · combination-nested\n · combination\n · escaped\n · list-basic\n · list-multiple\n · no-braces\n · sequence-basic\n · sequence-multiple\n\n# benchmark/fixtures/combination-nested.js (52 bytes)\n brace-expansion x 4,756 ops/sec ±1.09% (86 runs sampled)\n braces x 11,202,303 ops/sec ±1.06% (88 runs sampled)\n minimatch x 4,816 ops/sec ±0.99% (87 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/combination.js (51 bytes)\n brace-expansion x 625 ops/sec ±0.87% (87 runs sampled)\n braces x 11,031,884 ops/sec ±0.72% (90 runs sampled)\n minimatch x 637 ops/sec ±0.84% (88 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/escaped.js (44 bytes)\n brace-expansion x 163,325 ops/sec ±1.05% (87 runs sampled)\n braces x 10,655,071 ops/sec ±1.22% (88 runs sampled)\n minimatch x 147,495 ops/sec ±0.96% (88 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/list-basic.js (40 bytes)\n brace-expansion x 99,726 ops/sec ±1.07% (83 runs sampled)\n braces x 10,596,584 ops/sec ±0.98% (88 runs sampled)\n minimatch x 100,069 ops/sec ±1.17% (86 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/list-multiple.js (52 bytes)\n brace-expansion x 34,348 ops/sec ±1.08% (88 runs sampled)\n braces x 9,264,131 ops/sec ±1.12% (88 runs sampled)\n minimatch x 34,893 ops/sec ±0.87% (87 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/no-braces.js (48 bytes)\n brace-expansion x 275,368 ops/sec ±1.18% (89 runs sampled)\n braces x 9,134,677 ops/sec ±0.95% (88 runs sampled)\n minimatch x 3,755,954 ops/sec ±1.13% (89 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/sequence-basic.js (41 bytes)\n brace-expansion x 5,492 ops/sec ±1.35% (87 runs sampled)\n braces x 8,485,034 ops/sec ±1.28% (89 runs sampled)\n minimatch x 5,341 ops/sec ±1.17% (87 runs sampled)\n\n fastest is braces\n\n# benchmark/fixtures/sequence-multiple.js (51 bytes)\n brace-expansion x 116 ops/sec ±0.77% (77 runs sampled)\n braces x 9,445,118 ops/sec ±1.32% (84 runs sampled)\n minimatch x 109 ops/sec ±1.16% (76 runs sampled)\n\n fastest is braces\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets \"Expand POSIX bracket expressions (character classes) in glob patterns.\")\n* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/micromatch/extglob) | [homepage](https://github.com/micromatch/extglob \"Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.\")\n* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range \"Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n* [nanomatch](https://www.npmjs.com/package/nanomatch): Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash… [more](https://github.com/micromatch/nanomatch) | [homepage](https://github.com/micromatch/nanomatch \"Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 188 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 4 | [doowb](https://github.com/doowb) |\n| 1 | [es128](https://github.com/es128) |\n| 1 | [eush77](https://github.com/eush77) |\n| 1 | [hemanth](https://github.com/hemanth) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 17, 2018._\n\n<hr class=\"footnotes-sep\">\n<section class=\"footnotes\">\n<ol class=\"footnotes-list\">\n<li id=\"fn1\" class=\"footnote-item\">this is the largest safe integer allowed in JavaScript. <a href=\"#fnref1\" class=\"footnote-backref\">↩</a>\n\n</li>\n</ol>\n</section>\n# global\n\n<!-- [![build status][1]][2]\n\n[![browser support][3]][4] -->\n\nRequire global variables\n\n## Example\n\n```js\nvar global = require(\"global\")\nvar document = require(\"global/document\")\nvar window = require(\"global/window\")\n```\n\n## Installation\n\n`npm install global`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [1]: https://secure.travis-ci.org/Colingo/global.png\n [2]: http://travis-ci.org/Colingo/global\n [3]: http://ci.testling.com/Colingo/global.png\n [4]: http://ci.testling.com/Colingo/global\nhas-unicode\n===========\n\nTry to guess if your terminal supports unicode\n\n```javascript\nvar hasUnicode = require(\"has-unicode\")\n\nif (hasUnicode()) {\n // the terminal probably has unicode support\n}\n```\n```javascript\nvar hasUnicode = require(\"has-unicode\").tryHarder\nhasUnicode(function(unicodeSupported) {\n if (unicodeSupported) {\n // the terminal probably has unicode support\n }\n})\n```\n\n## Detecting Unicode\n\nWhat we actually detect is UTF-8 support, as that's what Node itself supports.\nIf you have a UTF-16 locale then you won't be detected as unicode capable.\n\n### Windows\n\nSince at least Windows 7, `cmd` and `powershell` have been unicode capable,\nbut unfortunately even then it's not guaranteed. In many localizations it\nstill uses legacy code pages and there's no facility short of running\nprograms or linking C++ that will let us detect this. As such, we\nreport any Windows installation as NOT unicode capable, and recommend\nthat you encourage your users to override this via config.\n\n### Unix Like Operating Systems\n\nWe look at the environment variables `LC_ALL`, `LC_CTYPE`, and `LANG` in\nthat order. For `LC_ALL` and `LANG`, it looks for `.UTF-8` in the value. \nFor `LC_CTYPE` it looks to see if the value is `UTF-8`. This is sufficient\nfor most POSIX systems. While locale data can be put in `/etc/locale.conf`\nas well, AFAIK it's always copied into the environment.\n# to-regex-range [](https://www.npmjs.com/package/to-regex-range) [](https://npmjs.org/package/to-regex-range) [](https://npmjs.org/package/to-regex-range) [](https://travis-ci.org/micromatch/to-regex-range)\n\n> Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save to-regex-range\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add to-regex-range\n```\n\n<details>\n<summary><strong>What does this do?</strong></summary>\n\n<br>\n\nThis libary generates the `source` string to be passed to `new RegExp()` for matching a range of numbers.\n\n**Example**\n\n```js\nvar toRegexRange = require('to-regex-range');\nvar regex = new RegExp(toRegexRange('15', '95'));\n```\n\nA string is returned so that you can do whatever you need with it before passing it to `new RegExp()` (like adding `^` or `$` boundaries, defining flags, or combining it another string).\n\n<br>\n\n</details>\n\n<details>\n<summary><strong>Why use this library?</strong></summary>\n\n<br>\n\n### Convenience\n\nCreating regular expressions for matching numbers gets deceptively complicated pretty fast.\n\nFor example, let's say you need a validation regex for matching part of a user-id, postal code, social security number, tax id, etc:\n\n* regex for matching `1` => `/1/` (easy enough)\n* regex for matching `1` through `5` => `/[1-5]/` (not bad...)\n* regex for matching `1` or `5` => `/(1|5)/` (still easy...)\n* regex for matching `1` through `50` => `/([1-9]|[1-4][0-9]|50)/` (uh-oh...)\n* regex for matching `1` through `55` => `/([1-9]|[1-4][0-9]|5[0-5])/` (no prob, I can do this...)\n* regex for matching `1` through `555` => `/([1-9]|[1-9][0-9]|[1-4][0-9]{2}|5[0-4][0-9]|55[0-5])/` (maybe not...)\n* regex for matching `0001` through `5555` => `/(0{3}[1-9]|0{2}[1-9][0-9]|0[1-9][0-9]{2}|[1-4][0-9]{3}|5[0-4][0-9]{2}|55[0-4][0-9]|555[0-5])/` (okay, I get the point!)\n\nThe numbers are contrived, but they're also really basic. In the real world you might need to generate a regex on-the-fly for validation.\n\n**Learn more**\n\nIf you're interested in learning more about [character classes](http://www.regular-expressions.info/charclass.html) and other regex features, I personally have always found [regular-expressions.info](http://www.regular-expressions.info/charclass.html) to be pretty useful.\n\n### Heavily tested\n\nAs of April 27, 2017, this library runs [2,783,483 test assertions](./test/test.js) against generated regex-ranges to provide brute-force verification that results are indeed correct.\n\nTests run in ~870ms on my MacBook Pro, 2.5 GHz Intel Core i7.\n\n### Highly optimized\n\nGenerated regular expressions are highly optimized:\n\n* duplicate sequences and character classes are reduced using quantifiers\n* smart enough to use `?` conditionals when number(s) or range(s) can be positive or negative\n* uses fragment caching to avoid processing the same exact string more than once\n\n<br>\n\n</details>\n\n## Usage\n\nAdd this library to your javascript application with the following line of code\n\n```js\nvar toRegexRange = require('to-regex-range');\n```\n\nThe main export is a function that takes two integers: the `min` value and `max` value (formatted as strings or numbers).\n\n```js\nvar source = toRegexRange('15', '95');\n//=> 1[5-9]|[2-8][0-9]|9[0-5]\n\nvar re = new RegExp('^' + source + '$');\nconsole.log(re.test('14')); //=> false\nconsole.log(re.test('50')); //=> true\nconsole.log(re.test('94')); //=> true\nconsole.log(re.test('96')); //=> false\n```\n\n## Options\n\n### options.capture\n\n**Type**: `boolean`\n\n**Deafault**: `undefined`\n\nWrap the returned value in parentheses when there is more than one regex condition. Useful when you're dynamically generating ranges.\n\n```js\nconsole.log(toRegexRange('-10', '10'));\n//=> -[1-9]|-?10|[0-9]\n\nconsole.log(toRegexRange('-10', '10', {capture: true}));\n//=> (-[1-9]|-?10|[0-9])\n```\n\n### options.shorthand\n\n**Type**: `boolean`\n\n**Deafault**: `undefined`\n\nUse the regex shorthand for `[0-9]`:\n\n```js\nconsole.log(toRegexRange('0', '999999'));\n//=> [0-9]|[1-9][0-9]{1,5}\n\nconsole.log(toRegexRange('0', '999999', {shorthand: true}));\n//=> \\d|[1-9]\\d{1,5}\n```\n\n### options.relaxZeros\n\n**Type**: `boolean`\n\n**Default**: `true`\n\nThis option only applies to **negative zero-padded ranges**. By default, when a negative zero-padded range is defined, the number of leading zeros is relaxed using `-0*`.\n\n```js\nconsole.log(toRegexRange('-001', '100'));\n//=> -0*1|0{2}[0-9]|0[1-9][0-9]|100\n\nconsole.log(toRegexRange('-001', '100', {relaxZeros: false}));\n//=> -0{2}1|0{2}[0-9]|0[1-9][0-9]|100\n```\n\n<details>\n<summary><strong>Why are zeros relaxed for negative zero-padded ranges by default?</strong></summary>\n\nConsider the following.\n\n```js\nvar regex = toRegexRange('-001', '100');\n```\n\n_Note that `-001` and `100` are both three digits long_.\n\nIn most zero-padding implementations, only a single leading zero is enough to indicate that zero-padding should be applied. Thus, the leading zeros would be \"corrected\" on the negative range in the example to `-01`, instead of `-001`, to make total length of each string no greater than the length of the largest number in the range (in other words, `-001` is 4 digits, but `100` is only three digits).\n\nIf zeros were not relaxed by default, you might expect the resulting regex of the above pattern to match `-001` - given that it's defined that way in the arguments - _but it wouldn't_. It would, however, match `-01`. This gets even more ambiguous with large ranges, like `-01` to `1000000`.\n\nThus, we relax zeros by default to provide a more predictable experience for users.\n\n</details>\n\n## Examples\n\n| **Range** | **Result** | **Compile time** | \n| --- | --- | --- |\n| `toRegexRange('5, 5')` | `5` | _33μs_ |\n| `toRegexRange('5, 6')` | `5\\|6` | _53μs_ |\n| `toRegexRange('29, 51')` | `29\\|[34][0-9]\\|5[01]` | _699μs_ |\n| `toRegexRange('31, 877')` | `3[1-9]\\|[4-9][0-9]\\|[1-7][0-9]{2}\\|8[0-6][0-9]\\|87[0-7]` | _711μs_ |\n| `toRegexRange('111, 555')` | `11[1-9]\\|1[2-9][0-9]\\|[2-4][0-9]{2}\\|5[0-4][0-9]\\|55[0-5]` | _62μs_ |\n| `toRegexRange('-10, 10')` | `-[1-9]\\|-?10\\|[0-9]` | _74μs_ |\n| `toRegexRange('-100, -10')` | `-1[0-9]\\|-[2-9][0-9]\\|-100` | _49μs_ |\n| `toRegexRange('-100, 100')` | `-[1-9]\\|-?[1-9][0-9]\\|-?100\\|[0-9]` | _45μs_ |\n| `toRegexRange('001, 100')` | `0{2}[1-9]\\|0[1-9][0-9]\\|100` | _158μs_ |\n| `toRegexRange('0010, 1000')` | `0{2}1[0-9]\\|0{2}[2-9][0-9]\\|0[1-9][0-9]{2}\\|1000` | _61μs_ |\n| `toRegexRange('1, 2')` | `1\\|2` | _10μs_ |\n| `toRegexRange('1, 5')` | `[1-5]` | _24μs_ |\n| `toRegexRange('1, 10')` | `[1-9]\\|10` | _23μs_ |\n| `toRegexRange('1, 100')` | `[1-9]\\|[1-9][0-9]\\|100` | _30μs_ |\n| `toRegexRange('1, 1000')` | `[1-9]\\|[1-9][0-9]{1,2}\\|1000` | _52μs_ |\n| `toRegexRange('1, 10000')` | `[1-9]\\|[1-9][0-9]{1,3}\\|10000` | _47μs_ |\n| `toRegexRange('1, 100000')` | `[1-9]\\|[1-9][0-9]{1,4}\\|100000` | _44μs_ |\n| `toRegexRange('1, 1000000')` | `[1-9]\\|[1-9][0-9]{1,5}\\|1000000` | _49μs_ |\n| `toRegexRange('1, 10000000')` | `[1-9]\\|[1-9][0-9]{1,6}\\|10000000` | _63μs_ |\n\n## Heads up!\n\n**Order of arguments**\n\nWhen the `min` is larger than the `max`, values will be flipped to create a valid range:\n\n```js\ntoRegexRange('51', '29');\n```\n\nIs effectively flipped to:\n\n```js\ntoRegexRange('29', '51');\n//=> 29|[3-4][0-9]|5[0-1]\n```\n\n**Steps / increments**\n\nThis library does not support steps (increments). A pr to add support would be welcome.\n\n## History\n\n### v2.0.0 - 2017-04-21\n\n**New features**\n\nAdds support for zero-padding!\n\n### v1.0.0\n\n**Optimizations**\n\nRepeating ranges are now grouped using quantifiers. rocessing time is roughly the same, but the generated regex is much smaller, which should result in faster matching.\n\n## Attribution\n\nInspired by the python library [range-regex](https://github.com/dimka665/range-regex).\n\n## About\n\n### Related projects\n\n* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range \"Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.\")\n* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range \"Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n* [repeat-element](https://www.npmjs.com/package/repeat-element): Create an array by repeating the given value n times. | [homepage](https://github.com/jonschlinkert/repeat-element \"Create an array by repeating the given value n times.\")\n* [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string \"Repeat the given string n times. Fastest implementation for repeating a string.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on April 27, 2017._\n### esutils [](http://travis-ci.org/estools/esutils)\nesutils ([esutils](http://github.com/estools/esutils)) is\nutility box for ECMAScript language tools.\n\n### API\n\n### ast\n\n#### ast.isExpression(node)\n\nReturns true if `node` is an Expression as defined in ECMA262 edition 5.1 section\n[11](https://es5.github.io/#x11).\n\n#### ast.isStatement(node)\n\nReturns true if `node` is a Statement as defined in ECMA262 edition 5.1 section\n[12](https://es5.github.io/#x12).\n\n#### ast.isIterationStatement(node)\n\nReturns true if `node` is an IterationStatement as defined in ECMA262 edition\n5.1 section [12.6](https://es5.github.io/#x12.6).\n\n#### ast.isSourceElement(node)\n\nReturns true if `node` is a SourceElement as defined in ECMA262 edition 5.1\nsection [14](https://es5.github.io/#x14).\n\n#### ast.trailingStatement(node)\n\nReturns `Statement?` if `node` has trailing `Statement`.\n```js\nif (cond)\n consequent;\n```\nWhen taking this `IfStatement`, returns `consequent;` statement.\n\n#### ast.isProblematicIfStatement(node)\n\nReturns true if `node` is a problematic IfStatement. If `node` is a problematic `IfStatement`, `node` cannot be represented as an one on one JavaScript code.\n```js\n{\n type: 'IfStatement',\n consequent: {\n type: 'WithStatement',\n body: {\n type: 'IfStatement',\n consequent: {type: 'EmptyStatement'}\n }\n },\n alternate: {type: 'EmptyStatement'}\n}\n```\nThe above node cannot be represented as a JavaScript code, since the top level `else` alternate belongs to an inner `IfStatement`.\n\n### code\n\n#### code.isDecimalDigit(code)\n\nReturn true if provided code is decimal digit.\n\n#### code.isHexDigit(code)\n\nReturn true if provided code is hexadecimal digit.\n\n#### code.isOctalDigit(code)\n\nReturn true if provided code is octal digit.\n\n#### code.isWhiteSpace(code)\n\nReturn true if provided code is white space. White space characters are formally defined in ECMA262.\n\n#### code.isLineTerminator(code)\n\nReturn true if provided code is line terminator. Line terminator characters are formally defined in ECMA262.\n\n#### code.isIdentifierStart(code)\n\nReturn true if provided code can be the first character of ECMA262 Identifier. They are formally defined in ECMA262.\n\n#### code.isIdentifierPart(code)\n\nReturn true if provided code can be the trailing character of ECMA262 Identifier. They are formally defined in ECMA262.\n\n### keyword\n\n#### keyword.isKeywordES5(id, strict)\n\nReturns `true` if provided identifier string is a Keyword or Future Reserved Word\nin ECMA262 edition 5.1. They are formally defined in ECMA262 sections\n[7.6.1.1](http://es5.github.io/#x7.6.1.1) and [7.6.1.2](http://es5.github.io/#x7.6.1.2),\nrespectively. If the `strict` flag is truthy, this function additionally checks whether\n`id` is a Keyword or Future Reserved Word under strict mode.\n\n#### keyword.isKeywordES6(id, strict)\n\nReturns `true` if provided identifier string is a Keyword or Future Reserved Word\nin ECMA262 edition 6. They are formally defined in ECMA262 sections\n[11.6.2.1](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-keywords) and\n[11.6.2.2](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-future-reserved-words),\nrespectively. If the `strict` flag is truthy, this function additionally checks whether\n`id` is a Keyword or Future Reserved Word under strict mode.\n\n#### keyword.isReservedWordES5(id, strict)\n\nReturns `true` if provided identifier string is a Reserved Word in ECMA262 edition 5.1.\nThey are formally defined in ECMA262 section [7.6.1](http://es5.github.io/#x7.6.1).\nIf the `strict` flag is truthy, this function additionally checks whether `id`\nis a Reserved Word under strict mode.\n\n#### keyword.isReservedWordES6(id, strict)\n\nReturns `true` if provided identifier string is a Reserved Word in ECMA262 edition 6.\nThey are formally defined in ECMA262 section [11.6.2](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-reserved-words).\nIf the `strict` flag is truthy, this function additionally checks whether `id`\nis a Reserved Word under strict mode.\n\n#### keyword.isRestrictedWord(id)\n\nReturns `true` if provided identifier string is one of `eval` or `arguments`.\nThey are restricted in strict mode code throughout ECMA262 edition 5.1 and\nin ECMA262 edition 6 section [12.1.1](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-identifiers-static-semantics-early-errors).\n\n#### keyword.isIdentifierName(id)\n\nReturn true if provided identifier string is an IdentifierName as specified in\nECMA262 edition 5.1 section [7.6](https://es5.github.io/#x7.6).\n\n#### keyword.isIdentifierES5(id, strict)\n\nReturn true if provided identifier string is an Identifier as specified in\nECMA262 edition 5.1 section [7.6](https://es5.github.io/#x7.6). If the `strict`\nflag is truthy, this function additionally checks whether `id` is an Identifier\nunder strict mode.\n\n#### keyword.isIdentifierES6(id, strict)\n\nReturn true if provided identifier string is an Identifier as specified in\nECMA262 edition 6 section [12.1](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-identifiers).\nIf the `strict` flag is truthy, this function additionally checks whether `id`\nis an Identifier under strict mode.\n\n### License\n\nCopyright (C) 2013 [Yusuke Suzuki](http://github.com/Constellation)\n (twitter: [@Constellation](http://twitter.com/Constellation)) and other contributors.\n\nRedistribution and use in source and binary forms, with or without\nmodification, are permitted provided that the following conditions are met:\n\n * Redistributions of source code must retain the above copyright\n notice, this list of conditions and the following disclaimer.\n\n * Redistributions in binary form must reproduce the above copyright\n notice, this list of conditions and the following disclaimer in the\n documentation and/or other materials provided with the distribution.\n\nTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\nAND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\nIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\nARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY\nDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\nLOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\nON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\nTHIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n# json-parse-better-errors [](https://npm.im/json-parse-better-errors) [](https://npm.im/json-parse-better-errors) [](https://travis-ci.org/zkat/json-parse-better-errors) [](https://ci.appveyor.com/project/zkat/json-parse-better-errors) [](https://coveralls.io/github/zkat/json-parse-better-errors?branch=latest)\n\n[`json-parse-better-errors`](https://github.com/zkat/json-parse-better-errors) is a Node.js library for\ngetting nicer errors out of `JSON.parse()`, including context and position of the parse errors.\n\n## Install\n\n`$ npm install --save json-parse-better-errors`\n\n## Table of Contents\n\n* [Example](#example)\n* [Features](#features)\n* [Contributing](#contributing)\n* [API](#api)\n * [`parse`](#parse)\n\n### Example\n\n```javascript\nconst parseJson = require('json-parse-better-errors')\n\nparseJson('\"foo\"')\nparseJson('garbage') // more useful error message\n```\n\n### Features\n\n* Like JSON.parse, but the errors are better.\n\n### Contributing\n\nThe npm team enthusiastically welcomes contributions and project participation! There's a bunch of things you can do if you want to contribute! The [Contributor Guide](CONTRIBUTING.md) has all the information you need for everything from reporting bugs to contributing entire new features. Please don't hesitate to jump in if you'd like to, or even ask us questions if something isn't clear.\n\nAll participants and maintainers in this project are expected to follow [Code of Conduct](CODE_OF_CONDUCT.md), and just generally be excellent to each other.\n\nPlease refer to the [Changelog](CHANGELOG.md) for project history details, too.\n\nHappy hacking!\n\n### API\n\n#### <a name=\"parse\"></a> `> parse(txt, ?reviver, ?context=20)`\n\nWorks just like `JSON.parse`, but will include a bit more information when an\nerror happens.\n# proxy-addr\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nDetermine address of proxied request\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install proxy-addr\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar proxyaddr = require('proxy-addr')\n```\n\n### proxyaddr(req, trust)\n\nReturn the address of the request, using the given `trust` parameter.\n\nThe `trust` argument is a function that returns `true` if you trust\nthe address, `false` if you don't. The closest untrusted address is\nreturned.\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr(req, function (addr) { return addr === '127.0.0.1' })\nproxyaddr(req, function (addr, i) { return i < 1 })\n```\n\nThe `trust` arugment may also be a single IP address string or an\narray of trusted addresses, as plain IP addresses, CIDR-formatted\nstrings, or IP/netmask strings.\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr(req, '127.0.0.1')\nproxyaddr(req, ['127.0.0.0/8', '10.0.0.0/8'])\nproxyaddr(req, ['127.0.0.0/255.0.0.0', '192.168.0.0/255.255.0.0'])\n```\n\nThis module also supports IPv6. Your IPv6 addresses will be normalized\nautomatically (i.e. `fe80::00ed:1` equals `fe80:0:0:0:0:0:ed:1`).\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr(req, '::1')\nproxyaddr(req, ['::1/128', 'fe80::/10'])\n```\n\nThis module will automatically work with IPv4-mapped IPv6 addresses\nas well to support node.js in IPv6-only mode. This means that you do\nnot have to specify both `::ffff:a00:1` and `10.0.0.1`.\n\nAs a convenience, this module also takes certain pre-defined names\nin addition to IP addresses, which expand into IP addresses:\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr(req, 'loopback')\nproxyaddr(req, ['loopback', 'fc00:ac:1ab5:fff::1/64'])\n```\n\n * `loopback`: IPv4 and IPv6 loopback addresses (like `::1` and\n `127.0.0.1`).\n * `linklocal`: IPv4 and IPv6 link-local addresses (like\n `fe80::1:1:1:1` and `169.254.0.1`).\n * `uniquelocal`: IPv4 private addresses and IPv6 unique-local\n addresses (like `fc00:ac:1ab5:fff::1` and `192.168.0.1`).\n\nWhen `trust` is specified as a function, it will be called for each\naddress to determine if it is a trusted address. The function is\ngiven two arguments: `addr` and `i`, where `addr` is a string of\nthe address to check and `i` is a number that represents the distance\nfrom the socket address.\n\n### proxyaddr.all(req, [trust])\n\nReturn all the addresses of the request, optionally stopping at the\nfirst untrusted. This array is ordered from closest to furthest\n(i.e. `arr[0] === req.connection.remoteAddress`).\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr.all(req)\n```\n\nThe optional `trust` argument takes the same arguments as `trust`\ndoes in `proxyaddr(req, trust)`.\n\n<!-- eslint-disable no-undef -->\n\n```js\nproxyaddr.all(req, 'loopback')\n```\n\n### proxyaddr.compile(val)\n\nCompiles argument `val` into a `trust` function. This function takes\nthe same arguments as `trust` does in `proxyaddr(req, trust)` and\nreturns a function suitable for `proxyaddr(req, trust)`.\n\n<!-- eslint-disable no-undef, no-unused-vars -->\n\n```js\nvar trust = proxyaddr.compile('loopback')\nvar addr = proxyaddr(req, trust)\n```\n\nThis function is meant to be optimized for use against every request.\nIt is recommend to compile a trust function up-front for the trusted\nconfiguration and pass that to `proxyaddr(req, trust)` for each request.\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## Benchmarks\n\n```sh\n$ npm run-script bench\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/proxy-addr.svg\n[npm-url]: https://npmjs.org/package/proxy-addr\n[node-version-image]: https://img.shields.io/node/v/proxy-addr.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/proxy-addr/master.svg\n[travis-url]: https://travis-ci.org/jshttp/proxy-addr\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/proxy-addr/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/proxy-addr?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/proxy-addr.svg\n[downloads-url]: https://npmjs.org/package/proxy-addr\nThis folder contains entry points for [ECMAScript proposals](https://github.com/zloirock/core-js/tree/v3#ecmascript-proposals) with dependencies.\nThis folder contains entry points for features from [WHATWG / W3C](https://github.com/zloirock/core-js/tree/v3#web-standards) with dependencies.\n# inflight\n\nAdd callbacks to requests in flight to avoid async duplication\n\n## USAGE\n\n```javascript\nvar inflight = require('inflight')\n\n// some request that does some stuff\nfunction req(key, callback) {\n // key is any random string. like a url or filename or whatever.\n //\n // will return either a falsey value, indicating that the\n // request for this key is already in flight, or a new callback\n // which when called will call all callbacks passed to inflightk\n // with the same key\n callback = inflight(key, callback)\n\n // If we got a falsey value back, then there's already a req going\n if (!callback) return\n\n // this is where you'd fetch the url or whatever\n // callback is also once()-ified, so it can safely be assigned\n // to multiple events etc. First call wins.\n setTimeout(function() {\n callback(null, key)\n }, 100)\n}\n\n// only assigns a single setTimeout\n// when it dings, all cbs get called\nreq('foo', cb1)\nreq('foo', cb2)\nreq('foo', cb3)\nreq('foo', cb4)\n```\n# parallel-transform\n\n[Transform stream](http://nodejs.org/api/stream.html#stream_class_stream_transform_1) for Node.js that allows you to run your transforms\nin parallel without changing the order of the output.\n\n\tnpm install parallel-transform\n\nIt is easy to use\n\n``` js\nvar transform = require('parallel-transform');\n\nvar stream = transform(10, function(data, callback) { // 10 is the parallism level\n\tsetTimeout(function() {\n\t\tcallback(null, data);\n\t}, Math.random() * 1000);\n});\n\nfor (var i = 0; i < 10; i++) {\n\tstream.write(''+i);\n}\nstream.end();\n\nstream.on('data', function(data) {\n\tconsole.log(data); // prints 0,1,2,...\n});\nstream.on('end', function() {\n\tconsole.log('stream has ended');\n});\n```\n\nIf you run the above example you'll notice that it runs in parallel\n(does not take ~1 second between each print) and that the order is preserved\n\n## Stream options\n\nAll transforms are Node 0.10 streams. Per default they are created with the options `{objectMode:true}`.\nIf you want to use your own stream options pass them as the second parameter\n\n``` js\nvar stream = transform(10, {objectMode:false}, function(data, callback) {\n\t// data is now a buffer\n\tcallback(null, data);\n});\n\nfs.createReadStream('filename').pipe(stream).pipe(process.stdout);\n```\n\n### Unordered\nPassing the option `{ordered:false}` will output the data as soon as it's processed by a transform, without waiting to respect the order.\n\n## License\n\nMIT\n# node-tar\n\nTar for Node.js.\n\n[](https://nodei.co/npm/tar/)\n\n## API\n\nSee `examples/` for usage examples.\n\n### var tar = require('tar')\n\nReturns an object with `.Pack`, `.Extract` and `.Parse` methods.\n\n### tar.Pack([properties])\n\nReturns a through stream. Use\n[fstream](https://npmjs.org/package/fstream) to write files into the\npack stream and you will receive tar archive data from the pack\nstream.\n\nThis only works with directories, it does not work with individual files.\n\nThe optional `properties` object are used to set properties in the tar\n'Global Extended Header'. If the `fromBase` property is set to true,\nthe tar will contain files relative to the path passed, and not with\nthe path included.\n\n### tar.Extract([options])\n\nReturns a through stream. Write tar data to the stream and the files\nin the tarball will be extracted onto the filesystem.\n\n`options` can be:\n\n```js\n{\n path: '/path/to/extract/tar/into',\n strip: 0, // how many path segments to strip from the root when extracting\n}\n```\n\n`options` also get passed to the `fstream.Writer` instance that `tar`\nuses internally.\n\n### tar.Parse()\n\nReturns a writable stream. Write tar data to it and it will emit\n`entry` events for each entry parsed from the tarball. This is used by\n`tar.Extract`.\nA light, featureful and explicit option parsing library for node.js.\n\n[Why another one? See below](#why). tl;dr: The others I've tried are one of\ntoo loosey goosey (not explicit), too big/too many deps, or ill specified.\nYMMV.\n\nFollow <a href=\"https://twitter.com/intent/user?screen_name=trentmick\" target=\"_blank\">@trentmick</a>\nfor updates to node-dashdash.\n\n# Install\n\n npm install dashdash\n\n# Usage\n\n```javascript\nvar dashdash = require('dashdash');\n\n// Specify the options. Minimally `name` (or `names`) and `type`\n// must be given for each.\nvar options = [\n {\n // `names` or a single `name`. First element is the `opts.KEY`.\n names: ['help', 'h'],\n // See \"Option specs\" below for types.\n type: 'bool',\n help: 'Print this help and exit.'\n }\n];\n\n// Shortcut form. As called it infers `process.argv`. See below for\n// the longer form to use methods like `.help()` on the Parser object.\nvar opts = dashdash.parse({options: options});\n\nconsole.log(\"opts:\", opts);\nconsole.log(\"args:\", opts._args);\n```\n\n# Longer Example\n\nA more realistic [starter script \"foo.js\"](./examples/foo.js) is as follows.\nThis also shows using `parser.help()` for formatted option help.\n\n```javascript\nvar dashdash = require('./lib/dashdash');\n\nvar options = [\n {\n name: 'version',\n type: 'bool',\n help: 'Print tool version and exit.'\n },\n {\n names: ['help', 'h'],\n type: 'bool',\n help: 'Print this help and exit.'\n },\n {\n names: ['verbose', 'v'],\n type: 'arrayOfBool',\n help: 'Verbose output. Use multiple times for more verbose.'\n },\n {\n names: ['file', 'f'],\n type: 'string',\n help: 'File to process',\n helpArg: 'FILE'\n }\n];\n\nvar parser = dashdash.createParser({options: options});\ntry {\n var opts = parser.parse(process.argv);\n} catch (e) {\n console.error('foo: error: %s', e.message);\n process.exit(1);\n}\n\nconsole.log(\"# opts:\", opts);\nconsole.log(\"# args:\", opts._args);\n\n// Use `parser.help()` for formatted options help.\nif (opts.help) {\n var help = parser.help({includeEnv: true}).trimRight();\n console.log('usage: node foo.js [OPTIONS]\\n'\n + 'options:\\n'\n + help);\n process.exit(0);\n}\n\n// ...\n```\n\nSome example output from this script (foo.js):\n\n```\n$ node foo.js -h\n# opts: { help: true,\n _order: [ { name: 'help', value: true, from: 'argv' } ],\n _args: [] }\n# args: []\nusage: node foo.js [OPTIONS]\noptions:\n --version Print tool version and exit.\n -h, --help Print this help and exit.\n -v, --verbose Verbose output. Use multiple times for more verbose.\n -f FILE, --file=FILE File to process\n\n$ node foo.js -v\n# opts: { verbose: [ true ],\n _order: [ { name: 'verbose', value: true, from: 'argv' } ],\n _args: [] }\n# args: []\n\n$ node foo.js --version arg1\n# opts: { version: true,\n _order: [ { name: 'version', value: true, from: 'argv' } ],\n _args: [ 'arg1' ] }\n# args: [ 'arg1' ]\n\n$ node foo.js -f bar.txt\n# opts: { file: 'bar.txt',\n _order: [ { name: 'file', value: 'bar.txt', from: 'argv' } ],\n _args: [] }\n# args: []\n\n$ node foo.js -vvv --file=blah\n# opts: { verbose: [ true, true, true ],\n file: 'blah',\n _order:\n [ { name: 'verbose', value: true, from: 'argv' },\n { name: 'verbose', value: true, from: 'argv' },\n { name: 'verbose', value: true, from: 'argv' },\n { name: 'file', value: 'blah', from: 'argv' } ],\n _args: [] }\n# args: []\n```\n\nSee the [\"examples\"](examples/) dir for a number of starter examples using\nsome of dashdash's features.\n\n# Environment variable integration\n\nIf you want to allow environment variables to specify options to your tool,\ndashdash makes this easy. We can change the 'verbose' option in the example\nabove to include an 'env' field:\n\n```javascript\n {\n names: ['verbose', 'v'],\n type: 'arrayOfBool',\n env: 'FOO_VERBOSE', // <--- add this line\n help: 'Verbose output. Use multiple times for more verbose.'\n },\n```\n\nthen the **\"FOO_VERBOSE\" environment variable** can be used to set this\noption:\n\n```shell\n$ FOO_VERBOSE=1 node foo.js\n# opts: { verbose: [ true ],\n _order: [ { name: 'verbose', value: true, from: 'env' } ],\n _args: [] }\n# args: []\n```\n\nBoolean options will interpret the empty string as unset, '0' as false\nand anything else as true.\n\n```shell\n$ FOO_VERBOSE= node examples/foo.js # not set\n# opts: { _order: [], _args: [] }\n# args: []\n\n$ FOO_VERBOSE=0 node examples/foo.js # '0' is false\n# opts: { verbose: [ false ],\n _order: [ { key: 'verbose', value: false, from: 'env' } ],\n _args: [] }\n# args: []\n\n$ FOO_VERBOSE=1 node examples/foo.js # true\n# opts: { verbose: [ true ],\n _order: [ { key: 'verbose', value: true, from: 'env' } ],\n _args: [] }\n# args: []\n\n$ FOO_VERBOSE=boogabooga node examples/foo.js # true\n# opts: { verbose: [ true ],\n _order: [ { key: 'verbose', value: true, from: 'env' } ],\n _args: [] }\n# args: []\n```\n\nNon-booleans can be used as well. Strings:\n\n```shell\n$ FOO_FILE=data.txt node examples/foo.js\n# opts: { file: 'data.txt',\n _order: [ { key: 'file', value: 'data.txt', from: 'env' } ],\n _args: [] }\n# args: []\n```\n\nNumbers:\n\n```shell\n$ FOO_TIMEOUT=5000 node examples/foo.js\n# opts: { timeout: 5000,\n _order: [ { key: 'timeout', value: 5000, from: 'env' } ],\n _args: [] }\n# args: []\n\n$ FOO_TIMEOUT=blarg node examples/foo.js\nfoo: error: arg for \"FOO_TIMEOUT\" is not a positive integer: \"blarg\"\n```\n\nWith the `includeEnv: true` config to `parser.help()` the environment\nvariable can also be included in **help output**:\n\n usage: node foo.js [OPTIONS]\n options:\n --version Print tool version and exit.\n -h, --help Print this help and exit.\n -v, --verbose Verbose output. Use multiple times for more verbose.\n Environment: FOO_VERBOSE=1\n -f FILE, --file=FILE File to process\n\n# Bash completion\n\nDashdash provides a simple way to create a Bash completion file that you\ncan place in your \"bash_completion.d\" directory -- sometimes that is\n\"/usr/local/etc/bash_completion.d/\"). Features:\n\n- Support for short and long opts\n- Support for knowing which options take arguments\n- Support for subcommands (e.g. 'git log <TAB>' to show just options for the\n log subcommand). See\n [node-cmdln](https://github.com/trentm/node-cmdln#bash-completion) for\n how to integrate that.\n- Does the right thing with \"--\" to stop options.\n- Custom optarg and arg types for custom completions.\n\nDashdash will return bash completion file content given a parser instance:\n\n var parser = dashdash.createParser({options: options});\n console.log( parser.bashCompletion({name: 'mycli'}) );\n\nor directly from a `options` array of options specs:\n\n var code = dashdash.bashCompletionFromOptions({\n name: 'mycli',\n options: OPTIONS\n });\n\nWrite that content to \"/usr/local/etc/bash_completion.d/mycli\" and you will\nhave Bash completions for `mycli`. Alternatively you can write it to\nany file (e.g. \"~/.bashrc\") and source it.\n\nYou could add a `--completion` hidden option to your tool that emits the\ncompletion content and document for your users to call that to install\nBash completions.\n\nSee [examples/ddcompletion.js](examples/ddcompletion.js) for a complete\nexample, including how one can define bash functions for completion of custom\noption types. Also see [node-cmdln](https://github.com/trentm/node-cmdln) for\nhow it uses this for Bash completion for full multi-subcommand tools.\n\n- TODO: document specExtra\n- TODO: document includeHidden\n- TODO: document custom types, `function complete\\_FOO` guide, completionType\n- TODO: document argtypes\n\n# Parser config\n\nParser construction (i.e. `dashdash.createParser(CONFIG)`) takes the\nfollowing fields:\n\n- `options` (Array of option specs). Required. See the\n [Option specs](#option-specs) section below.\n\n- `interspersed` (Boolean). Optional. Default is true. If true this allows\n interspersed arguments and options. I.e.:\n\n node ./tool.js -v arg1 arg2 -h # '-h' is after interspersed args\n\n Set it to false to have '-h' **not** get parsed as an option in the above\n example.\n\n- `allowUnknown` (Boolean). Optional. Default is false. If false, this causes\n unknown arguments to throw an error. I.e.:\n\n node ./tool.js -v arg1 --afe8asefksjefhas\n\n Set it to true to treat the unknown option as a positional\n argument.\n\n **Caveat**: When a shortopt group, such as `-xaz` contains a mix of\n known and unknown options, the *entire* group is passed through\n unmolested as a positional argument.\n\n Consider if you have a known short option `-a`, and parse the\n following command line:\n\n node ./tool.js -xaz\n\n where `-x` and `-z` are unknown. There are multiple ways to\n interpret this:\n\n 1. `-x` takes a value: `{x: 'az'}`\n 2. `-x` and `-z` are both booleans: `{x:true,a:true,z:true}`\n\n Since dashdash does not know what `-x` and `-z` are, it can't know\n if you'd prefer to receive `{a:true,_args:['-x','-z']}` or\n `{x:'az'}`, or `{_args:['-xaz']}`. Leaving the positional arg unprocessed\n is the easiest mistake for the user to recover from.\n\n# Option specs\n\nExample using all fields (required fields are noted):\n\n```javascript\n{\n names: ['file', 'f'], // Required (one of `names` or `name`).\n type: 'string', // Required.\n completionType: 'filename',\n env: 'MYTOOL_FILE',\n help: 'Config file to load before running \"mytool\"',\n helpArg: 'PATH',\n helpWrap: false,\n default: path.resolve(process.env.HOME, '.mytoolrc')\n}\n```\n\nEach option spec in the `options` array must/can have the following fields:\n\n- `name` (String) or `names` (Array). Required. These give the option name\n and aliases. The first name (if more than one given) is the key for the\n parsed `opts` object.\n\n- `type` (String). Required. One of:\n\n - bool\n - string\n - number\n - integer\n - positiveInteger\n - date (epoch seconds, e.g. 1396031701, or ISO 8601 format\n `YYYY-MM-DD[THH:MM:SS[.sss][Z]]`, e.g. \"2014-03-28T18:35:01.489Z\")\n - arrayOfBool\n - arrayOfString\n - arrayOfNumber\n - arrayOfInteger\n - arrayOfPositiveInteger\n - arrayOfDate\n\n FWIW, these names attempt to match with asserts on\n [assert-plus](https://github.com/mcavage/node-assert-plus).\n You can add your own custom option types with `dashdash.addOptionType`.\n See below.\n\n- `completionType` (String). Optional. This is used for [Bash\n completion](#bash-completion) for an option argument. If not specified,\n then the value of `type` is used. Any string may be specified, but only the\n following values have meaning:\n\n - `none`: Provide no completions.\n - `file`: Bash's default completion (i.e. `complete -o default`), which\n includes filenames.\n - *Any string FOO for which a `function complete_FOO` Bash function is\n defined.* This is for custom completions for a given tool. Typically\n these custom functions are provided in the `specExtra` argument to\n `dashdash.bashCompletionFromOptions()`. See\n [\"examples/ddcompletion.js\"](examples/ddcompletion.js) for an example.\n\n- `env` (String or Array of String). Optional. An environment variable name\n (or names) that can be used as a fallback for this option. For example,\n given a \"foo.js\" like this:\n\n var options = [{names: ['dry-run', 'n'], env: 'FOO_DRY_RUN'}];\n var opts = dashdash.parse({options: options});\n\n Both `node foo.js --dry-run` and `FOO_DRY_RUN=1 node foo.js` would result\n in `opts.dry_run = true`.\n\n An environment variable is only used as a fallback, i.e. it is ignored if\n the associated option is given in `argv`.\n\n- `help` (String). Optional. Used for `parser.help()` output.\n\n- `helpArg` (String). Optional. Used in help output as the placeholder for\n the option argument, e.g. the \"PATH\" in:\n\n ...\n -f PATH, --file=PATH File to process\n ...\n\n- `helpWrap` (Boolean). Optional, default true. Set this to `false` to have\n that option's `help` *not* be text wrapped in `<parser>.help()` output.\n\n- `default`. Optional. A default value used for this option, if the\n option isn't specified in argv.\n\n- `hidden` (Boolean). Optional, default false. If true, help output will not\n include this option. See also the `includeHidden` option to\n `bashCompletionFromOptions()` for [Bash completion](#bash-completion).\n\n# Option group headings\n\nYou can add headings between option specs in the `options` array. To do so,\nsimply add an object with only a `group` property -- the string to print as\nthe heading for the subsequent options in the array. For example:\n\n```javascript\nvar options = [\n {\n group: 'Armament Options'\n },\n {\n names: [ 'weapon', 'w' ],\n type: 'string'\n },\n {\n group: 'General Options'\n },\n {\n names: [ 'help', 'h' ],\n type: 'bool'\n }\n];\n...\n```\n\nNote: You can use an empty string, `{group: ''}`, to get a blank line in help\noutput between groups of options.\n\n# Help config\n\nThe `parser.help(...)` function is configurable as follows:\n\n Options:\n Armament Options:\n ^^ -w WEAPON, --weapon=WEAPON Weapon with which to crush. One of: |\n / sword, spear, maul |\n / General Options: |\n / -h, --help Print this help and exit. |\n / ^^^^ ^ |\n \\ `-- indent `-- helpCol maxCol ---'\n `-- headingIndent\n\n- `indent` (Number or String). Default 4. Set to a number (for that many\n spaces) or a string for the literal indent.\n- `headingIndent` (Number or String). Default half length of `indent`. Set to\n a number (for that many spaces) or a string for the literal indent. This\n indent applies to group heading lines, between normal option lines.\n- `nameSort` (String). Default is 'length'. By default the names are\n sorted to put the short opts first (i.e. '-h, --help' preferred\n to '--help, -h'). Set to 'none' to not do this sorting.\n- `maxCol` (Number). Default 80. Note that reflow is just done on whitespace\n so a long token in the option help can overflow maxCol.\n- `helpCol` (Number). If not set a reasonable value will be determined\n between `minHelpCol` and `maxHelpCol`.\n- `minHelpCol` (Number). Default 20.\n- `maxHelpCol` (Number). Default 40.\n- `helpWrap` (Boolean). Default true. Set to `false` to have option `help`\n strings *not* be textwrapped to the helpCol..maxCol range.\n- `includeEnv` (Boolean). Default false. If the option has associated\n environment variables (via the `env` option spec attribute), then\n append mentioned of those envvars to the help string.\n- `includeDefault` (Boolean). Default false. If the option has a default value\n (via the `default` option spec attribute, or a default on the option's type),\n then a \"Default: VALUE\" string will be appended to the help string.\n\n# Custom option types\n\nDashdash includes a good starter set of option types that it will parse for\nyou. However, you can add your own via:\n\n var dashdash = require('dashdash');\n dashdash.addOptionType({\n name: '...',\n takesArg: true,\n helpArg: '...',\n parseArg: function (option, optstr, arg) {\n ...\n },\n array: false, // optional\n arrayFlatten: false, // optional\n default: ..., // optional\n completionType: ... // optional\n });\n\nFor example, a simple option type that accepts 'yes', 'y', 'no' or 'n' as\na boolean argument would look like:\n\n var dashdash = require('dashdash');\n\n function parseYesNo(option, optstr, arg) {\n var argLower = arg.toLowerCase()\n if (~['yes', 'y'].indexOf(argLower)) {\n return true;\n } else if (~['no', 'n'].indexOf(argLower)) {\n return false;\n } else {\n throw new Error(format(\n 'arg for \"%s\" is not \"yes\" or \"no\": \"%s\"',\n optstr, arg));\n }\n }\n\n dashdash.addOptionType({\n name: 'yesno'\n takesArg: true,\n helpArg: '<yes|no>',\n parseArg: parseYesNo\n });\n\n var options = {\n {names: ['answer', 'a'], type: 'yesno'}\n };\n var opts = dashdash.parse({options: options});\n\nSee \"examples/custom-option-\\*.js\" for other examples.\nSee the `addOptionType` block comment in \"lib/dashdash.js\" for more details.\nPlease let me know [with an\nissue](https://github.com/trentm/node-dashdash/issues/new) if you write a\ngenerally useful one.\n\n# Why\n\nWhy another node.js option parsing lib?\n\n- `nopt` really is just for \"tools like npm\". Implicit opts (e.g. '--no-foo'\n works for every '--foo'). Can't disable abbreviated opts. Can't do multiple\n usages of same opt, e.g. '-vvv' (I think). Can't do grouped short opts.\n\n- `optimist` has surprise interpretation of options (at least to me).\n Implicit opts mean ambiguities and poor error handling for fat-fingering.\n `process.exit` calls makes it hard to use as a libary.\n\n- `optparse` Incomplete docs. Is this an attempted clone of Python's `optparse`.\n Not clear. Some divergence. `parser.on(\"name\", ...)` API is weird.\n\n- `argparse` Dep on underscore. No thanks just for option processing.\n `find lib | wc -l` -> `26`. Overkill.\n Argparse is a bit different anyway. Not sure I want that.\n\n- `posix-getopt` No type validation. Though that isn't a killer. AFAIK can't\n have a long opt without a short alias. I.e. no `getopt_long` semantics.\n Also, no whizbang features like generated help output.\n\n- [\"commander.js\"](https://github.com/visionmedia/commander.js): I wrote\n [a critique](http://trentm.com/2014/01/a-critique-of-commander-for-nodejs.html)\n a while back. It seems fine, but last I checked had\n [an outstanding bug](https://github.com/visionmedia/commander.js/pull/121)\n that would prevent me from using it.\n\n# License\n\nMIT. See LICENSE.txt.\n# content-disposition\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nCreate and parse HTTP `Content-Disposition` header\n\n## Installation\n\n```sh\n$ npm install content-disposition\n```\n\n## API\n\n```js\nvar contentDisposition = require('content-disposition')\n```\n\n### contentDisposition(filename, options)\n\nCreate an attachment `Content-Disposition` header value using the given file name,\nif supplied. The `filename` is optional and if no file name is desired, but you\nwant to specify `options`, set `filename` to `undefined`.\n\n```js\nres.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))\n```\n\n**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this\nheader through a means different from `setHeader` in Node.js, you'll want to specify\nthe `'binary'` encoding in Node.js.\n\n#### Options\n\n`contentDisposition` accepts these properties in the options object.\n\n##### fallback\n\nIf the `filename` option is outside ISO-8859-1, then the file name is actually\nstored in a supplemental field for clients that support Unicode file names and\na ISO-8859-1 version of the file name is automatically generated.\n\nThis specifies the ISO-8859-1 file name to override the automatic generation or\ndisables the generation all together, defaults to `true`.\n\n - A string will specify the ISO-8859-1 file name to use in place of automatic\n generation.\n - `false` will disable including a ISO-8859-1 file name and only include the\n Unicode version (unless the file name is already ISO-8859-1).\n - `true` will enable automatic generation if the file name is outside ISO-8859-1.\n\nIf the `filename` option is ISO-8859-1 and this option is specified and has a\ndifferent value, then the `filename` option is encoded in the extended field\nand this set as the fallback field, even though they are both ISO-8859-1.\n\n##### type\n\nSpecifies the disposition type, defaults to `\"attachment\"`. This can also be\n`\"inline\"`, or any other value (all values except inline are treated like\n`attachment`, but can convey additional information if both parties agree to\nit). The type is normalized to lower-case.\n\n### contentDisposition.parse(string)\n\n```js\nvar disposition = contentDisposition.parse('attachment; filename=\"EURO rates.txt\"; filename*=UTF-8\\'\\'%e2%82%ac%20rates.txt');\n```\n\nParse a `Content-Disposition` header string. This automatically handles extended\n(\"Unicode\") parameters by decoding them and providing them under the standard\nparameter name. This will return an object with the following properties (examples\nare shown for the string `'attachment; filename=\"EURO rates.txt\"; filename*=UTF-8\\'\\'%e2%82%ac%20rates.txt'`):\n\n - `type`: The disposition type (always lower case). Example: `'attachment'`\n\n - `parameters`: An object of the parameters in the disposition (name of parameter\n always lower case and extended versions replace non-extended versions). Example:\n `{filename: \"€ rates.txt\"}`\n\n## Examples\n\n### Send a file for download\n\n```js\nvar contentDisposition = require('content-disposition')\nvar destroy = require('destroy')\nvar http = require('http')\nvar onFinished = require('on-finished')\n\nvar filePath = '/path/to/public/plans.pdf'\n\nhttp.createServer(function onRequest(req, res) {\n // set headers\n res.setHeader('Content-Type', 'application/pdf')\n res.setHeader('Content-Disposition', contentDisposition(filePath))\n\n // send file\n var stream = fs.createReadStream(filePath)\n stream.pipe(res)\n onFinished(res, function (err) {\n destroy(stream)\n })\n})\n```\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## References\n\n- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]\n- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]\n- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]\n- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]\n\n[rfc-2616]: https://tools.ietf.org/html/rfc2616\n[rfc-5987]: https://tools.ietf.org/html/rfc5987\n[rfc-6266]: https://tools.ietf.org/html/rfc6266\n[tc-2231]: http://greenbytes.de/tech/tc2231/\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/content-disposition.svg?style=flat\n[npm-url]: https://npmjs.org/package/content-disposition\n[node-version-image]: https://img.shields.io/node/v/content-disposition.svg?style=flat\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/jshttp/content-disposition.svg?style=flat\n[travis-url]: https://travis-ci.org/jshttp/content-disposition\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg?style=flat\n[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg?style=flat\n[downloads-url]: https://npmjs.org/package/content-disposition\n# convert-source-map [](http://travis-ci.org/thlorenz/convert-source-map)\n\n<a href=\"https://www.patreon.com/bePatron?u=8663953\"><img alt=\"become a patron\" src=\"https://c5.patreon.com/external/logo/become_a_patron_button.png\" height=\"35px\"></a>\n\nConverts a source-map from/to different formats and allows adding/changing properties.\n\n```js\nvar convert = require('convert-source-map');\n\nvar json = convert\n .fromComment('//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYnVpbGQvZm9vLm1pbi5qcyIsInNvdXJjZXMiOlsic3JjL2Zvby5qcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')\n .toJSON();\n\nvar modified = convert\n .fromComment('//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYnVpbGQvZm9vLm1pbi5qcyIsInNvdXJjZXMiOlsic3JjL2Zvby5qcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')\n .setProperty('sources', [ 'SRC/FOO.JS' ])\n .toJSON();\n\nconsole.log(json);\nconsole.log(modified);\n```\n\n```json\n{\"version\":3,\"file\":\"build/foo.min.js\",\"sources\":[\"src/foo.js\"],\"names\":[],\"mappings\":\"AAAA\",\"sourceRoot\":\"/\"}\n{\"version\":3,\"file\":\"build/foo.min.js\",\"sources\":[\"SRC/FOO.JS\"],\"names\":[],\"mappings\":\"AAAA\",\"sourceRoot\":\"/\"}\n```\n\n## API\n\n### fromObject(obj)\n\nReturns source map converter from given object.\n\n### fromJSON(json)\n\nReturns source map converter from given json string.\n\n### fromBase64(base64)\n\nReturns source map converter from given base64 encoded json string.\n\n### fromComment(comment)\n\nReturns source map converter from given base64 encoded json string prefixed with `//# sourceMappingURL=...`.\n\n### fromMapFileComment(comment, mapFileDir)\n\nReturns source map converter from given `filename` by parsing `//# sourceMappingURL=filename`.\n\n`filename` must point to a file that is found inside the `mapFileDir`. Most tools store this file right next to the\ngenerated file, i.e. the one containing the source map.\n\n### fromSource(source)\n\nFinds last sourcemap comment in file and returns source map converter or returns null if no source map comment was found.\n\n### fromMapFileSource(source, mapFileDir)\n\nFinds last sourcemap comment in file and returns source map converter or returns null if no source map comment was\nfound.\n\nThe sourcemap will be read from the map file found by parsing `# sourceMappingURL=file` comment. For more info see\nfromMapFileComment.\n\n### toObject()\n\nReturns a copy of the underlying source map.\n\n### toJSON([space])\n\nConverts source map to json string. If `space` is given (optional), this will be passed to\n[JSON.stringify](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/JSON/stringify) when the\nJSON string is generated.\n\n### toBase64()\n\nConverts source map to base64 encoded json string.\n\n### toComment([options])\n\nConverts source map to an inline comment that can be appended to the source-file.\n\nBy default, the comment is formatted like: `//# sourceMappingURL=...`, which you would\nnormally see in a JS source file.\n\nWhen `options.multiline == true`, the comment is formatted like: `/*# sourceMappingURL=... */`, which you would find in a CSS source file.\n\n### addProperty(key, value)\n\nAdds given property to the source map. Throws an error if property already exists.\n\n### setProperty(key, value)\n\nSets given property to the source map. If property doesn't exist it is added, otherwise its value is updated.\n\n### getProperty(key)\n\nGets given property of the source map.\n\n### removeComments(src)\n\nReturns `src` with all source map comments removed\n\n### removeMapFileComments(src)\n\nReturns `src` with all source map comments pointing to map files removed.\n\n### commentRegex\n\nProvides __a fresh__ RegExp each time it is accessed. Can be used to find source map comments.\n\n### mapFileCommentRegex\n\nProvides __a fresh__ RegExp each time it is accessed. Can be used to find source map comments pointing to map files.\n\n### generateMapFileComment(file, [options])\n\nReturns a comment that links to an external source map via `file`.\n\nBy default, the comment is formatted like: `//# sourceMappingURL=...`, which you would normally see in a JS source file.\n\nWhen `options.multiline == true`, the comment is formatted like: `/*# sourceMappingURL=... */`, which you would find in a CSS source file.\n\n[](https://bitdeli.com/free \"Bitdeli Badge\")\n# minimalistic-crypto-utils\n[](http://travis-ci.org/indutny/minimalistic-crypto-utils)\n[](http://badge.fury.io/js/minimalistic-crypto-utils)\n\nVery minimal utils that are required in order to write reasonable JS-only\ncrypto module.\n\n## Usage\n\n```js\nconst utils = require('minimalistic-crypto-utils');\n\nutils.toArray('abcd', 'hex');\nutils.encode([ 1, 2, 3, 4 ], 'hex');\nutils.toHex([ 1, 2, 3, 4 ]);\n```\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2017.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: http://tools.ietf.org/html/rfc6979\n[1]: https://github.com/indutny/bn.js\n[2]: https://github.com/indutny/hash.js\n[3]: https://github.com/bitchan/eccrypto\n[4]: https://github.com/wanderer/secp256k1-node\n# normalize-path [](https://www.npmjs.com/package/normalize-path) [](https://npmjs.org/package/normalize-path) [](https://npmjs.org/package/normalize-path) [](https://travis-ci.org/jonschlinkert/normalize-path)\n\n> Normalize file path slashes to be unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes unless disabled.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save normalize-path\n```\n\n## Usage\n\n```js\nvar normalize = require('normalize-path');\n\nnormalize('\\\\foo\\\\bar\\\\baz\\\\');\n//=> '/foo/bar/baz'\n\nnormalize('./foo/bar/baz/');\n//=> './foo/bar/baz'\n```\n\nPass `false` as the last argument to **keep** trailing slashes:\n\n```js\nnormalize('./foo/bar/baz/', false);\n//=> './foo/bar/baz/'\n\nnormalize('foo\\\\bar\\\\baz\\\\', false);\n//=> 'foo/bar/baz/'\n```\n\n## About\n\n### Related projects\n\n* [contains-path](https://www.npmjs.com/package/contains-path): Return true if a file path contains the given path. | [homepage](https://github.com/jonschlinkert/contains-path \"Return true if a file path contains the given path.\")\n* [ends-with](https://www.npmjs.com/package/ends-with): Returns `true` if the given `string` or `array` ends with `suffix` using strict equality for… [more](https://github.com/jonschlinkert/ends-with) | [homepage](https://github.com/jonschlinkert/ends-with \"Returns `true` if the given `string` or `array` ends with `suffix` using strict equality for comparisons.\")\n* [is-absolute](https://www.npmjs.com/package/is-absolute): Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute. | [homepage](https://github.com/jonschlinkert/is-absolute \"Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute.\")\n* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative \"Returns `true` if the path appears to be relative.\")\n* [parse-filepath](https://www.npmjs.com/package/parse-filepath): Pollyfill for node.js `path.parse`, parses a filepath into an object. | [homepage](https://github.com/jonschlinkert/parse-filepath \"Pollyfill for node.js `path.parse`, parses a filepath into an object.\")\n* [path-ends-with](https://www.npmjs.com/package/path-ends-with): Return `true` if a file path ends with the given string/suffix. | [homepage](https://github.com/jonschlinkert/path-ends-with \"Return `true` if a file path ends with the given string/suffix.\")\n* [path-segments](https://www.npmjs.com/package/path-segments): Get n specific segments of a file path, e.g. first 2, last 3, etc. | [homepage](https://github.com/jonschlinkert/path-segments \"Get n specific segments of a file path, e.g. first 2, last 3, etc.\")\n* [rewrite-ext](https://www.npmjs.com/package/rewrite-ext): Automatically re-write the destination extension of a filepath based on the source extension. e.g… [more](https://github.com/jonschlinkert/rewrite-ext) | [homepage](https://github.com/jonschlinkert/rewrite-ext \"Automatically re-write the destination extension of a filepath based on the source extension. e.g `.coffee` => `.js`. This will only rename the ext, no other path parts are modified.\")\n* [unixify](https://www.npmjs.com/package/unixify): Convert Windows file paths to unix paths. | [homepage](https://github.com/jonschlinkert/unixify \"Convert Windows file paths to unix paths.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 31 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [phated](https://github.com/phated) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.3, on March 29, 2017._\n# expand-brackets [](https://www.npmjs.com/package/expand-brackets) [](https://npmjs.org/package/expand-brackets) [](https://npmjs.org/package/expand-brackets) [](https://travis-ci.org/jonschlinkert/expand-brackets) [](https://ci.appveyor.com/project/jonschlinkert/expand-brackets)\n\n> Expand POSIX bracket expressions (character classes) in glob patterns.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save expand-brackets\n```\n\n## Usage\n\n```js\nvar brackets = require('expand-brackets');\nbrackets(string[, options]);\n```\n\n**Params**\n\nThe main export is a function that takes the following parameters:\n\n* `pattern` **{String}**: the pattern to convert\n* `options` **{Object}**: optionally supply an options object\n* `returns` **{String}**: returns a string that can be used to create a regex\n\n**Example**\n\n```js\nconsole.log(brackets('[![:lower:]]'));\n//=> '[^a-z]'\n```\n\n## API\n\n### [brackets](index.js#L29)\n\nParses the given POSIX character class `pattern` and returns a\nstring that can be used for creating regular expressions for matching.\n\n**Params**\n\n* `pattern` **{String}**\n* `options` **{Object}**\n* `returns` **{Object}**\n\n### [.match](index.js#L54)\n\nTakes an array of strings and a POSIX character class pattern, and returns a new array with only the strings that matched the pattern.\n\n**Example**\n\n```js\nvar brackets = require('expand-brackets');\nconsole.log(brackets.match(['1', 'a', 'ab'], '[[:alpha:]]'));\n//=> ['a']\n\nconsole.log(brackets.match(['1', 'a', 'ab'], '[[:alpha:]]+'));\n//=> ['a', 'ab']\n```\n\n**Params**\n\n* `arr` **{Array}**: Array of strings to match\n* `pattern` **{String}**: POSIX character class pattern(s)\n* `options` **{Object}**\n* `returns` **{Array}**\n\n### [.isMatch](index.js#L100)\n\nReturns true if the specified `string` matches the given brackets `pattern`.\n\n**Example**\n\n```js\nvar brackets = require('expand-brackets');\n\nconsole.log(brackets.isMatch('a.a', '[[:alpha:]].[[:alpha:]]'));\n//=> true\nconsole.log(brackets.isMatch('1.2', '[[:alpha:]].[[:alpha:]]'));\n//=> false\n```\n\n**Params**\n\n* `string` **{String}**: String to match\n* `pattern` **{String}**: Poxis pattern\n* `options` **{String}**\n* `returns` **{Boolean}**\n\n### [.matcher](index.js#L123)\n\nTakes a POSIX character class pattern and returns a matcher function. The returned function takes the string to match as its only argument.\n\n**Example**\n\n```js\nvar brackets = require('expand-brackets');\nvar isMatch = brackets.matcher('[[:lower:]].[[:upper:]]');\n\nconsole.log(isMatch('a.a'));\n//=> false\nconsole.log(isMatch('a.A'));\n//=> true\n```\n\n**Params**\n\n* `pattern` **{String}**: Poxis pattern\n* `options` **{String}**\n* `returns` **{Boolean}**\n\n### [.makeRe](index.js#L145)\n\nCreate a regular expression from the given `pattern`.\n\n**Example**\n\n```js\nvar brackets = require('expand-brackets');\nvar re = brackets.makeRe('[[:alpha:]]');\nconsole.log(re);\n//=> /^(?:[a-zA-Z])$/\n```\n\n**Params**\n\n* `pattern` **{String}**: The pattern to convert to regex.\n* `options` **{Object}**\n* `returns` **{RegExp}**\n\n### [.create](index.js#L187)\n\nParses the given POSIX character class `pattern` and returns an object with the compiled `output` and optional source `map`.\n\n**Example**\n\n```js\nvar brackets = require('expand-brackets');\nconsole.log(brackets('[[:alpha:]]'));\n// { options: { source: 'string' },\n// input: '[[:alpha:]]',\n// state: {},\n// compilers:\n// { eos: [Function],\n// noop: [Function],\n// bos: [Function],\n// not: [Function],\n// escape: [Function],\n// text: [Function],\n// posix: [Function],\n// bracket: [Function],\n// 'bracket.open': [Function],\n// 'bracket.inner': [Function],\n// 'bracket.literal': [Function],\n// 'bracket.close': [Function] },\n// output: '[a-zA-Z]',\n// ast:\n// { type: 'root',\n// errors: [],\n// nodes: [ [Object], [Object], [Object] ] },\n// parsingErrors: [] }\n```\n\n**Params**\n\n* `pattern` **{String}**\n* `options` **{Object}**\n* `returns` **{Object}**\n\n## Options\n\n### options.sourcemap\n\nGenerate a source map for the given pattern.\n\n**Example**\n\n```js\nvar res = brackets('[:alpha:]', {sourcemap: true});\n\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'brackets' ],\n// names: [],\n// mappings: 'AAAA,MAAS',\n// sourcesContent: [ '[:alpha:]' ] }\n```\n\n### POSIX Character classes\n\nThe following named POSIX bracket expressions are supported:\n\n* `[:alnum:]`: Alphanumeric characters (`a-zA-Z0-9]`)\n* `[:alpha:]`: Alphabetic characters (`a-zA-Z]`)\n* `[:blank:]`: Space and tab (`[ t]`)\n* `[:digit:]`: Digits (`[0-9]`)\n* `[:lower:]`: Lowercase letters (`[a-z]`)\n* `[:punct:]`: Punctuation and symbols. (`[!\"#$%&'()*+, -./:;<=>?@ [\\]^_``{|}~]`)\n* `[:upper:]`: Uppercase letters (`[A-Z]`)\n* `[:word:]`: Word characters (letters, numbers and underscores) (`[A-Za-z0-9_]`)\n* `[:xdigit:]`: Hexadecimal digits (`[A-Fa-f0-9]`)\n\nSee [posix-character-classes](https://github.com/jonschlinkert/posix-character-classes) for more details.\n\n**Not supported**\n\n* [equivalence classes](https://www.gnu.org/software/gawk/manual/html_node/Bracket-Expressions.html) are not supported\n* [POSIX.2 collating symbols](https://www.gnu.org/software/gawk/manual/html_node/Bracket-Expressions.html) are not supported\n\n## Changelog\n\n### v2.0.0\n\n**Breaking changes**\n\n* The main export now returns the compiled string, instead of the object returned from the compiler\n\n**Added features**\n\n* Adds a `.create` method to do what the main function did before v2.0.0\n\n### v0.2.0\n\nIn addition to performance and matching improvements, the v0.2.0 refactor adds complete POSIX character class support, with the exception of equivalence classes and POSIX.2 collating symbols which are not relevant to node.js usage.\n\n**Added features**\n\n* parser is exposed, so that expand-brackets parsers can be used by upstream parsers (like [micromatch](https://github.com/jonschlinkert/micromatch))\n* compiler is exposed, so that expand-brackets compilers can be used by upstream compilers\n* source maps\n\n**source map example**\n\n```js\nvar brackets = require('expand-brackets');\nvar res = brackets('[:alpha:]');\nconsole.log(res.map);\n\n{ version: 3,\n sources: [ 'brackets' ],\n names: [],\n mappings: 'AAAA,MAAS',\n sourcesContent: [ '[:alpha:]' ] }\n```\n\n## About\n\n### Related projects\n\n* [braces](https://www.npmjs.com/package/braces): Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces \"Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces specification, without sacrificing speed.\")\n* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/jonschlinkert/extglob) | [homepage](https://github.com/jonschlinkert/extglob \"Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n* [nanomatch](https://www.npmjs.com/package/nanomatch): Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash… [more](https://github.com/jonschlinkert/nanomatch) | [homepage](https://github.com/jonschlinkert/nanomatch \"Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor**<br/> | \n| --- | --- |\n| 66 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [MartinKolarik](https://github.com/MartinKolarik) |\n| 2 | [es128](https://github.com/es128) |\n| 1 | [eush77](https://github.com/eush77) |\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/expand-brackets/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on December 12, 2016._\n# unicode-match-property-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-match-property-ecmascript)\n\n_unicode-match-property-ecmascript_ matches a given Unicode property or [property alias](https://github.com/mathiasbynens/unicode-property-aliases-ecmascript) to its canonical property name without applying [loose matching](https://github.com/mathiasbynens/unicode-loose-match) per the algorithm used for [RegExp Unicode property escapes in ECMAScript](https://github.com/tc39/proposal-regexp-unicode-property-escapes). Consider it a strict alternative to loose matching.\n\n## Installation\n\nTo use _unicode-match-property-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\n$ npm install unicode-match-property-ecmascript\n```\n\nThen, `require` it:\n\n```js\nconst matchProperty = require('unicode-match-property-ecmascript');\n```\n\n## API\n\nThis module exports a single function named `matchProperty`.\n\n### `matchProperty(value)`\n\nThis function takes a string `value` and attempts to match it to a canonical Unicode property name. If there’s a match, it returns the canonical property name. Otherwise, it throws an exception.\n\n```js\n// Find the canonical property name:\nmatchProperty('sc')\n// → 'Script'\n\nmatchProperty('Script')\n// → 'Script'\n\nmatchProperty('script') // Note: incorrect casing.\n// → throws\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_unicode-match-property-ecmascript_ is available under the [MIT](https://mths.be/mit) license.\n# promise-inflight\n\nOne promise for multiple requests in flight to avoid async duplication\n\n## USAGE\n\n```javascript\nconst inflight = require('promise-inflight')\n\n// some request that does some stuff\nfunction req(key) {\n // key is any random string. like a url or filename or whatever.\n return inflight(key, () => {\n // this is where you'd fetch the url or whatever\n return Promise.delay(100)\n })\n}\n\n// only assigns a single setTimeout\n// when it dings, all thens get called with the same result. (There's only\n// one underlying promise.)\nreq('foo').then(…)\nreq('foo').then(…)\nreq('foo').then(…)\nreq('foo').then(…)\n```\n\n## SEE ALSO\n\n* [inflight](https://npmjs.com/package/inflight) - For the callback based function on which this is based.\n\n## STILL NEEDS\n\nTests!\n# CSS Modules: Scope Locals & Extend\n\n[](https://travis-ci.org/css-modules/postcss-modules-scope)\n\nTransforms:\n\n```css\n:local(.continueButton) {\n color: green;\n}\n```\n\ninto:\n\n```css\n:export {\n continueButton: __buttons_continueButton_djd347adcxz9;\n}\n.__buttons_continueButton_djd347adcxz9 {\n color: green;\n}\n```\n\nso it doesn't pollute CSS global scope and can be simply used in JS like so:\n\n```js\nimport styles from './buttons.css'\nelem.innerHTML = `<button class=\"${styles.continueButton}\">Continue</button>`\n```\n\n## Composition\n\nSince we're exporting class names, there's no reason to export only one. This can give us some really useful reuse of styles:\n\n```css\n.globalButtonStyle {\n background: white;\n border: 1px solid;\n border-radius: 0.25rem;\n}\n.globalButtonStyle:hover {\n box-shadow: 0 0 4px -2px;\n}\n:local(.continueButton) {\n compose-with: globalButtonStyle;\n color: green;\n}\n```\n\nbecomes:\n\n```\n.globalButtonStyle {\n background: white;\n border: 1px solid;\n border-radius: 0.25rem;\n}\n.globalButtonStyle:hover {\n box-shadow: 0 0 4px -2px;\n}\n:local(.continueButton) {\n compose-with: globalButtonStyle;\n color: green;\n}\n```\n\n**Note:** you can also use `composes` as a shorthand for `compose-with`\n\n## Local-by-default & reuse across files\n\nYou're looking for [CSS Modules](https://github.com/css-modules/css-modules). It uses this plugin as well as a few others, and it's amazing.\n\n## Building\n\n```\nnpm install\nnpm test\n```\n\n[](https://travis-ci.org/css-modules/postcss-modules-scope)\n\n* Lines: [](https://coveralls.io/r/css-modules/postcss-modules-scope?branch=master)\n* Statements: [](http://codecov.io/github/css-modules/postcss-modules-scope?branch=master)\n\n## Development\n\n- `npm autotest` will watch `src` and `test` for changes and run the tests, and transpile the ES6 to ES5 on success\n\n## License\n\nISC\n\n## With thanks\n\n- Mark Dalgleish\n- Tobias Koppers\n- Guy Bedford\n\n---\nGlen Maddern, 2015.\n# constants-browserify\n\nNode's `constants` module for the browser.\n\n[](https://www.npmjs.org/package/constants-browserify)\n\n## Usage\n\nTo use with browserify cli:\n\n```bash\n$ browserify -r constants:constants-browserify script.js\n```\n\nTo use with browserify api:\n\n```js\nbrowserify()\n .require('constants-browserify', { expose: 'constants' })\n .add(__dirname + '/script.js')\n .bundle()\n // ...\n```\n\n## Installation\n\nWith [npm](http://npmjs.org) do\n\n```bash\n$ npm install constants-browserify\n```\n\n## License\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\n# set-blocking\n\n[](https://travis-ci.org/yargs/set-blocking)\n[](https://www.npmjs.com/package/set-blocking)\n[](https://coveralls.io/r/yargs/set-blocking?branch=master)\n[](https://github.com/conventional-changelog/standard-version)\n\nset blocking `stdio` and `stderr` ensuring that terminal output does not truncate.\n\n```js\nconst setBlocking = require('set-blocking')\nsetBlocking(true)\nconsole.log(someLargeStringToOutput)\n```\n\n## Historical Context/Word of Warning\n\nThis was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on\nnewer versions of Node.js (`0.12+`), truncating terminal output.\n\nYou should be mindful of the side-effects caused by using `set-blocking`:\n\n* if your module sets blocking to `true`, it will effect other modules\n consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call\n `setBlocking(true)` once we already know we are about to call `process.exit(code)`.\n* this patch will not apply to subprocesses spawned with `isTTY = true`, this is\n the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).\n\n## License\n\nISC\n# resolve-dir [](https://www.npmjs.com/package/resolve-dir) [](https://npmjs.org/package/resolve-dir) [](https://travis-ci.org/jonschlinkert/resolve-dir)\n\n> Resolve a directory that is either local, global or in the user's home directory.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save resolve-dir\n```\n\n## Usage\n\n```js\nvar resolve = require('resolve-dir');\n```\n\nReturns a local directory path unchanged\n\n```js\nresolve('a')\n//=> 'a'\n```\n\nResolves the path to user home\n\n```js\nresolve('~')\n//=> '/Users/jonschlinkert'\nresolve('~/foo')\n//=> '/Users/jonschlinkert/foo'\n```\n\nResolves the path to global npm modules\n\n```js\nresolve('@')\n//=> '/usr/local/lib/node_modules'\nresolve('@/foo')\n//=> '/usr/local/lib/node_modules/foo'\n```\n\n## About\n\n### Related projects\n\n* [expand-tilde](https://www.npmjs.com/package/expand-tilde): Bash-like tilde expansion for node.js. Expands a leading tilde in a file path to the… [more](https://github.com/jonschlinkert/expand-tilde) | [homepage](https://github.com/jonschlinkert/expand-tilde \"Bash-like tilde expansion for node.js. Expands a leading tilde in a file path to the user home directory, or `~+` to the cwd.\")\n* [findup-sync](https://www.npmjs.com/package/findup-sync): Find the first file matching a given pattern in the current directory or the nearest… [more](https://github.com/cowboy/node-findup-sync) | [homepage](https://github.com/cowboy/node-findup-sync \"Find the first file matching a given pattern in the current directory or the nearest ancestor directory.\")\n* [resolve-modules](https://www.npmjs.com/package/resolve-modules): Resolves local and global npm modules that match specified patterns, and returns a configuration object… [more](https://github.com/jonschlinkert/resolve-modules) | [homepage](https://github.com/jonschlinkert/resolve-modules \"Resolves local and global npm modules that match specified patterns, and returns a configuration object for each resolved module.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/resolve-dir/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 18, 2016._\n# js-levenshtein [](https://travis-ci.org/gustf/js-levenshtein)\n\nA very efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.\n\nBased on Wagner-Fischer dynamic programming algorithm, optimized for speed and memory\n - use a single distance vector instead of a matrix\n - loop unrolling on the outer loop\n - remove common prefixes/postfixes from the calculation\n - minimize the number of comparisons\n \n## Install\n\n```\n$ npm install --save js-levenshtein\n```\n\n## Usage\n\n```js\nconst levenshtein = require('js-levenshtein');\n\nlevenshtein('kitten', 'sitting');\n//=> 3\n```\n\n## Benchmark\n\n```\n$ npm run bench\n \n 50 paragraphs, length max=500 min=240 avr=372.5\n 162 op/s » js-levenshtein\n 98 op/s » talisman\n 94 op/s » levenshtein-edit-distance\n 85 op/s » leven\n 39 op/s » fast-levenshtein\n\n 100 sentences, length max=170 min=6 avr=57.5\n 3,076 op/s » js-levenshtein\n 2,024 op/s » talisman\n 1,817 op/s » levenshtein-edit-distance\n 1,633 op/s » leven\n 800 op/s » fast-levenshtein\n\n 2000 words, length max=20 min=3 avr=9.5\n 3,119 op/s » js-levenshtein\n 2,416 op/s » talisman\n 2,141 op/s » levenshtein-edit-distance\n 1,855 op/s » leven\n 1,260 op/s » fast-levenshtein\n```\n\nBenchmarks was performed with node v8.12.0 on a MacBook Pro 15\", 2.9 GHz Intel Core i9\n\n## License\n\nMIT © Gustaf Andersson\n# Glob\n\nMatch files using the patterns the shell uses, like stars and stuff.\n\n[](https://travis-ci.org/isaacs/node-glob/) [](https://ci.appveyor.com/project/isaacs/node-glob) [](https://coveralls.io/github/isaacs/node-glob?branch=master)\n\nThis is a glob implementation in JavaScript. It uses the `minimatch`\nlibrary to do its matching.\n\n\n\n## Usage\n\nInstall with npm\n\n```\nnpm i glob\n```\n\n```javascript\nvar glob = require(\"glob\")\n\n// options is optional\nglob(\"**/*.js\", options, function (er, files) {\n // files is an array of filenames.\n // If the `nonull` option is set, and nothing\n // was found, then files is [\"**/*.js\"]\n // er is an error object or null.\n})\n```\n\n## Glob Primer\n\n\"Globs\" are the patterns you type when you do stuff like `ls *.js` on\nthe command line, or put `build/*` in a `.gitignore` file.\n\nBefore parsing the path part patterns, braced sections are expanded\ninto a set. Braced sections start with `{` and end with `}`, with any\nnumber of comma-delimited sections within. Braced sections may contain\nslash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.\n\nThe following characters have special magic meaning when used in a\npath portion:\n\n* `*` Matches 0 or more characters in a single path portion\n* `?` Matches 1 character\n* `[...]` Matches a range of characters, similar to a RegExp range.\n If the first character of the range is `!` or `^` then it matches\n any character not in the range.\n* `!(pattern|pattern|pattern)` Matches anything that does not match\n any of the patterns provided.\n* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the\n patterns provided.\n* `+(pattern|pattern|pattern)` Matches one or more occurrences of the\n patterns provided.\n* `*(a|b|c)` Matches zero or more occurrences of the patterns provided\n* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns\n provided\n* `**` If a \"globstar\" is alone in a path portion, then it matches\n zero or more directories and subdirectories searching for matches.\n It does not crawl symlinked directories.\n\n### Dots\n\nIf a file or directory path portion has a `.` as the first character,\nthen it will not match any glob pattern unless that pattern's\ncorresponding path part also has a `.` as its first character.\n\nFor example, the pattern `a/.*/c` would match the file at `a/.b/c`.\nHowever the pattern `a/*/c` would not, because `*` does not start with\na dot character.\n\nYou can make glob treat dots as normal characters by setting\n`dot:true` in the options.\n\n### Basename Matching\n\nIf you set `matchBase:true` in the options, and the pattern has no\nslashes in it, then it will seek for any file anywhere in the tree\nwith a matching basename. For example, `*.js` would match\n`test/simple/basic.js`.\n\n### Empty Sets\n\nIf no matching files are found, then an empty array is returned. This\ndiffers from the shell, where the pattern itself is returned. For\nexample:\n\n $ echo a*s*d*f\n a*s*d*f\n\nTo get the bash-style behavior, set the `nonull:true` in the options.\n\n### See Also:\n\n* `man sh`\n* `man bash` (Search for \"Pattern Matching\")\n* `man 3 fnmatch`\n* `man 5 gitignore`\n* [minimatch documentation](https://github.com/isaacs/minimatch)\n\n## glob.hasMagic(pattern, [options])\n\nReturns `true` if there are any special characters in the pattern, and\n`false` otherwise.\n\nNote that the options affect the results. If `noext:true` is set in\nthe options object, then `+(a|b)` will not be considered a magic\npattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`\nthen that is considered magical, unless `nobrace:true` is set in the\noptions.\n\n## glob(pattern, [options], cb)\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* `cb` `{Function}`\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nPerform an asynchronous glob search.\n\n## glob.sync(pattern, [options])\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* return: `{Array<String>}` filenames found matching the pattern\n\nPerform a synchronous glob search.\n\n## Class: glob.Glob\n\nCreate a Glob object by instantiating the `glob.Glob` class.\n\n```javascript\nvar Glob = require(\"glob\").Glob\nvar mg = new Glob(pattern, options, cb)\n```\n\nIt's an EventEmitter, and starts walking the filesystem to find matches\nimmediately.\n\n### new glob.Glob(pattern, [options], [cb])\n\n* `pattern` `{String}` pattern to search for\n* `options` `{Object}`\n* `cb` `{Function}` Called when an error occurs, or matches are found\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nNote that if the `sync` flag is set in the options, then matches will\nbe immediately available on the `g.found` member.\n\n### Properties\n\n* `minimatch` The minimatch object that the glob uses.\n* `options` The options object passed in.\n* `aborted` Boolean which is set to true when calling `abort()`. There\n is no way at this time to continue a glob search after aborting, but\n you can re-use the statCache to avoid having to duplicate syscalls.\n* `cache` Convenience object. Each field has the following possible\n values:\n * `false` - Path does not exist\n * `true` - Path exists\n * `'FILE'` - Path exists, and is not a directory\n * `'DIR'` - Path exists, and is a directory\n * `[file, entries, ...]` - Path exists, is a directory, and the\n array value is the results of `fs.readdir`\n* `statCache` Cache of `fs.stat` results, to prevent statting the same\n path multiple times.\n* `symlinks` A record of which paths are symbolic links, which is\n relevant in resolving `**` patterns.\n* `realpathCache` An optional object which is passed to `fs.realpath`\n to minimize unnecessary syscalls. It is stored on the instantiated\n Glob object, and may be re-used.\n\n### Events\n\n* `end` When the matching is finished, this is emitted with all the\n matches found. If the `nonull` option is set, and no match was found,\n then the `matches` list contains the original pattern. The matches\n are sorted, unless the `nosort` flag is set.\n* `match` Every time a match is found, this is emitted with the specific\n thing that matched. It is not deduplicated or resolved to a realpath.\n* `error` Emitted when an unexpected error is encountered, or whenever\n any fs error occurs if `options.strict` is set.\n* `abort` When `abort()` is called, this event is raised.\n\n### Methods\n\n* `pause` Temporarily stop the search\n* `resume` Resume the search\n* `abort` Stop the search forever\n\n### Options\n\nAll the options that can be passed to Minimatch can also be passed to\nGlob to change pattern matching behavior. Also, some have been added,\nor have glob-specific ramifications.\n\nAll options are false by default, unless otherwise noted.\n\nAll options are added to the Glob object, as well.\n\nIf you are running many `glob` operations, you can pass a Glob object\nas the `options` argument to a subsequent operation to shortcut some\n`stat` and `readdir` calls. At the very least, you may pass in shared\n`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that\nparallel glob operations will be sped up by sharing information about\nthe filesystem.\n\n* `cwd` The current working directory in which to search. Defaults\n to `process.cwd()`.\n* `root` The place where patterns starting with `/` will be mounted\n onto. Defaults to `path.resolve(options.cwd, \"/\")` (`/` on Unix\n systems, and `C:\\` or some such on Windows.)\n* `dot` Include `.dot` files in normal matches and `globstar` matches.\n Note that an explicit dot in a portion of the pattern will always\n match dot files.\n* `nomount` By default, a pattern starting with a forward-slash will be\n \"mounted\" onto the root setting, so that a valid filesystem path is\n returned. Set this flag to disable that behavior.\n* `mark` Add a `/` character to directory matches. Note that this\n requires additional stat calls.\n* `nosort` Don't sort the results.\n* `stat` Set to true to stat *all* results. This reduces performance\n somewhat, and is completely unnecessary, unless `readdir` is presumed\n to be an untrustworthy indicator of file existence.\n* `silent` When an unusual error is encountered when attempting to\n read a directory, a warning will be printed to stderr. Set the\n `silent` option to true to suppress these warnings.\n* `strict` When an unusual error is encountered when attempting to\n read a directory, the process will just continue on in search of\n other matches. Set the `strict` option to raise an error in these\n cases.\n* `cache` See `cache` property above. Pass in a previously generated\n cache object to save some fs calls.\n* `statCache` A cache of results of filesystem information, to prevent\n unnecessary stat calls. While it should not normally be necessary\n to set this, you may pass the statCache from one glob() call to the\n options object of another, if you know that the filesystem will not\n change between calls. (See \"Race Conditions\" below.)\n* `symlinks` A cache of known symbolic links. You may pass in a\n previously generated `symlinks` object to save `lstat` calls when\n resolving `**` matches.\n* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.\n* `nounique` In some cases, brace-expanded patterns can result in the\n same file showing up multiple times in the result set. By default,\n this implementation prevents duplicates in the result set. Set this\n flag to disable that behavior.\n* `nonull` Set to never return an empty set, instead returning a set\n containing the pattern itself. This is the default in glob(3).\n* `debug` Set to enable debug logging in minimatch and glob.\n* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.\n* `noglobstar` Do not match `**` against multiple filenames. (Ie,\n treat it as a normal `*` instead.)\n* `noext` Do not match `+(a|b)` \"extglob\" patterns.\n* `nocase` Perform a case-insensitive match. Note: on\n case-insensitive filesystems, non-magic patterns will match by\n default, since `stat` and `readdir` will not raise errors.\n* `matchBase` Perform a basename-only match if the pattern does not\n contain any slash characters. That is, `*.js` would be treated as\n equivalent to `**/*.js`, matching all js files in all directories.\n* `nodir` Do not match directories, only files. (Note: to match\n *only* directories, simply put a `/` at the end of the pattern.)\n* `ignore` Add a pattern or an array of glob patterns to exclude matches.\n Note: `ignore` patterns are *always* in `dot:true` mode, regardless\n of any other settings.\n* `follow` Follow symlinked directories when expanding `**` patterns.\n Note that this can result in a lot of duplicate references in the\n presence of cyclic links.\n* `realpath` Set to true to call `fs.realpath` on all of the results.\n In the case of a symlink that cannot be resolved, the full absolute\n path to the matched entry is returned (though it will usually be a\n broken symlink)\n* `absolute` Set to true to always receive absolute paths for matched\n files. Unlike `realpath`, this also affects the values returned in\n the `match` event.\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between node-glob and other\nimplementations, and are intentional.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.3, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nNote that symlinked directories are not crawled as part of a `**`,\nthough their contents may match against subsequent portions of the\npattern. This prevents infinite loops and duplicates and the like.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen glob returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`glob.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n\n### Comments and Negation\n\nPreviously, this module let you mark a pattern as a \"comment\" if it\nstarted with a `#` character, or a \"negated\" pattern if it started\nwith a `!` character.\n\nThese options were deprecated in version 5, and removed in version 6.\n\nTo specify things that should not match, use the `ignore` option.\n\n## Windows\n\n**Please only use forward-slashes in glob expressions.**\n\nThough windows uses either `/` or `\\` as its path separator, only `/`\ncharacters are used by this glob implementation. You must use\nforward-slashes **only** in glob expressions. Back-slashes will always\nbe interpreted as escape characters, not path separators.\n\nResults from absolute patterns such as `/foo/*` are mounted onto the\nroot setting using `path.join`. On windows, this will by default result\nin `/foo/*` matching `C:\\foo\\bar.txt`.\n\n## Race Conditions\n\nGlob searching, by its very nature, is susceptible to race conditions,\nsince it relies on directory walking and such.\n\nAs a result, it is possible that a file that exists when glob looks for\nit may have been deleted or modified by the time it returns the result.\n\nAs part of its internal implementation, this program caches all stat\nand readdir calls that it makes, in order to cut down on system\noverhead. However, this also makes it even more susceptible to races,\nespecially if the cache or statCache objects are reused between glob\ncalls.\n\nUsers are thus advised not to use a glob result as a guarantee of\nfilesystem state in the face of rapid changes. For the vast majority\nof operations, this is never a problem.\n\n## Contributing\n\nAny change to behavior (including bugfixes) must come with a test.\n\nPatches that fail tests or reduce performance will be rejected.\n\n```\n# to run tests\nnpm test\n\n# to re-generate test fixtures\nnpm run test-regen\n\n# to benchmark against bash/zsh\nnpm run bench\n\n# to profile javascript\nnpm run prof\n```\nThis folder contains internal parts of `core-js` like helpers.\n# is-glob [](https://www.npmjs.com/package/is-glob) [](https://npmjs.org/package/is-glob) [](https://travis-ci.org/jonschlinkert/is-glob)\n\n> Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-glob\n```\n\nYou might also be interested in [is-valid-glob](https://github.com/jonschlinkert/is-valid-glob) and [has-glob](https://github.com/jonschlinkert/has-glob).\n\n## Usage\n\n```js\nvar isGlob = require('is-glob');\n```\n\n**True**\n\nPatterns that have glob characters or regex patterns will return `true`:\n\n```js\nisGlob('!foo.js');\nisGlob('*.js');\nisGlob('**/abc.js');\nisGlob('abc/*.js');\nisGlob('abc/(aaa|bbb).js');\nisGlob('abc/[a-z].js');\nisGlob('abc/{a,b}.js');\nisGlob('abc/?.js');\n//=> true\n```\n\nExtglobs\n\n```js\nisGlob('abc/@(a).js');\nisGlob('abc/!(a).js');\nisGlob('abc/+(a).js');\nisGlob('abc/*(a).js');\nisGlob('abc/?(a).js');\n//=> true\n```\n\n**False**\n\nEscaped globs or extglobs return `false`:\n\n```js\nisGlob('abc/\\\\@(a).js');\nisGlob('abc/\\\\!(a).js');\nisGlob('abc/\\\\+(a).js');\nisGlob('abc/\\\\*(a).js');\nisGlob('abc/\\\\?(a).js');\nisGlob('\\\\!foo.js');\nisGlob('\\\\*.js');\nisGlob('\\\\*\\\\*/abc.js');\nisGlob('abc/\\\\*.js');\nisGlob('abc/\\\\(aaa|bbb).js');\nisGlob('abc/\\\\[a-z].js');\nisGlob('abc/\\\\{a,b}.js');\nisGlob('abc/\\\\?.js');\n//=> false\n```\n\nPatterns that do not have glob patterns return `false`:\n\n```js\nisGlob('abc.js');\nisGlob('abc/def/ghi.js');\nisGlob('foo.js');\nisGlob('abc/@.js');\nisGlob('abc/+.js');\nisGlob();\nisGlob(null);\n//=> false\n```\n\nArrays are also `false` (If you want to check if an array has a glob pattern, use [has-glob](https://github.com/jonschlinkert/has-glob)):\n\n```js\nisGlob(['**/*.js']);\nisGlob(['foo.js']);\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [assemble](https://www.npmjs.com/package/assemble): Get the rocks out of your socks! Assemble makes you fast at creating web projects… [more](https://github.com/assemble/assemble) | [homepage](https://github.com/assemble/assemble \"Get the rocks out of your socks! Assemble makes you fast at creating web projects. Assemble is used by thousands of projects for rapid prototyping, creating themes, scaffolds, boilerplates, e-books, UI components, API documentation, blogs, building websit\")\n* [base](https://www.npmjs.com/package/base): base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/node-base/base) | [homepage](https://github.com/node-base/base \"base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [update](https://www.npmjs.com/package/update): Be scalable! Update is a new, open source developer framework and CLI for automating updates… [more](https://github.com/update/update) | [homepage](https://github.com/update/update \"Be scalable! Update is a new, open source developer framework and CLI for automating updates of any kind in code projects.\")\n* [verb](https://www.npmjs.com/package/verb): Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used… [more](https://github.com/verbose/verb) | [homepage](https://github.com/verbose/verb \"Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used on hundreds of projects of all sizes to generate everything from API docs to readmes.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor**<br/> | \n| --- | --- |\n| 40 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [tuvistavie](https://github.com/tuvistavie) |\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/is-glob/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._\n# fs-minipass\n\nFilesystem streams based on [minipass](http://npm.im/minipass).\n\n4 classes are exported:\n\n- ReadStream\n- ReadStreamSync\n- WriteStream\n- WriteStreamSync\n\nWhen using `ReadStreamSync`, all of the data is made available\nimmediately upon consuming the stream. Nothing is buffered in memory\nwhen the stream is constructed. If the stream is piped to a writer,\nthen it will synchronously `read()` and emit data into the writer as\nfast as the writer can consume it. (That is, it will respect\nbackpressure.) If you call `stream.read()` then it will read the\nentire file and return the contents.\n\nWhen using `WriteStreamSync`, every write is flushed to the file\nsynchronously. If your writes all come in a single tick, then it'll\nwrite it all out in a single tick. It's as synchronous as you are.\n\nThe async versions work much like their node builtin counterparts,\nwith the exception of introducing significantly less Stream machinery\noverhead.\n\n## USAGE\n\nIt's just streams, you pipe them or read() them or write() to them.\n\n```js\nconst fsm = require('fs-minipass')\nconst readStream = new fsm.ReadStream('file.txt')\nconst writeStream = new fsm.WriteStream('output.txt')\nwriteStream.write('some file header or whatever\\n')\nreadStream.pipe(writeStream)\n```\n\n## ReadStream(path, options)\n\nPath string is required, but somewhat irrelevant if an open file\ndescriptor is passed in as an option.\n\nOptions:\n\n- `fd` Pass in a numeric file descriptor, if the file is already open.\n- `readSize` The size of reads to do, defaults to 16MB\n- `size` The size of the file, if known. Prevents zero-byte read()\n call at the end.\n- `autoClose` Set to `false` to prevent the file descriptor from being\n closed when the file is done being read.\n\n## WriteStream(path, options)\n\nPath string is required, but somewhat irrelevant if an open file\ndescriptor is passed in as an option.\n\nOptions:\n\n- `fd` Pass in a numeric file descriptor, if the file is already open.\n- `mode` The mode to create the file with. Defaults to `0o666`.\n- `start` The position in the file to start reading. If not\n specified, then the file will start writing at position zero, and be\n truncated by default.\n- `autoClose` Set to `false` to prevent the file descriptor from being\n closed when the stream is ended.\n- `flags` Flags to use when opening the file. Irrelevant if `fd` is\n passed in, since file won't be opened in that case. Defaults to\n `'a'` if a `pos` is specified, or `'w'` otherwise.\n# os-browserify\n\nThe [os](https://nodejs.org/api/os.html) module from node.js, but for browsers.\n\nWhen you `require('os')` in [browserify](http://github.com/substack/node-browserify), this module will be loaded.\n# findup-sync [](https://travis-ci.org/js-cli/node-findup-sync) [](http://badge.fury.io/js/findup-sync)\n\n> Find the first file matching a given pattern in the current directory or the nearest ancestor directory.\n\nMatching is done with [micromatch][], please report any matching related issues on that repository. \n\n## Install with [npm](npmjs.org)\n\n```bash\nnpm i findup-sync --save\n```\n\n## Usage\n\n```js\nvar findup = require('findup-sync');\nfindup(patternOrPatterns [, micromatchOptions]);\n\n// Start looking in the CWD.\nvar filepath1 = findup('{a,b}*.txt');\n\n// Start looking somewhere else, and ignore case (probably a good idea).\nvar filepath2 = findup('{a,b}*.txt', {cwd: '/some/path', nocase: true});\n```\n\n* `patterns` **{String|Array}**: Glob pattern(s) or file path(s) to match against. \n* `options` **{Object}**: Options to pass to [micromatch]. Note that if you want to start in a different directory than the current working directory, specify a `cwd` property here. \n* `returns` **{String}**: Returns the first matching file.\n\n## Running tests\n\nInstall dev dependencies:\n\n```bash\nnpm i -d && npm test\n```\n\n## Contributing\n\nIn lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [Grunt](http://gruntjs.com/)\n\nFor bugs and feature requests, [please create an issue](https://github.com/cowboy/node-findup-sync/issues).\n\n## Release History\n\n2017-08-07 - v2.0.0 - Drop node 0.8 support, Bump all dependencies (including some Majors) \n2017-04-18 - v1.0.0 - Major bump from stable 0.4.3 \n2015-01-30 - v0.4.0 - Refactored, not also uses [micromatch][] instead of minimatch. \n2015-09-14 - v0.3.0 - updated glob to ~5.0. \n2014-12-17 - v0.2.1 - Updated to glob 4.3. \n2014-12-16 - v0.2.0 - Removed lodash, updated to glob 4.x. \n2014-03-14 - v0.1.3 - Updated dependencies. \n2013-03-08 - v0.1.2 - Updated dependencies. Fixed a Node 0.9.x bug. Updated unit tests to work cross-platform. \n2012-11-15 - v0.1.1 - Now works without an options object. \n2012-11-01 - v0.1.0 - Initial release. \n\n## Authors\n\n**\"Cowboy\" Ben Alman**\n \n+ [github/cowboy](https://github.com/cowboy)\n+ [twitter/cowboy](http://twitter.com/cowboy) \n\n## License\n\nCopyright (c) 2012-2016 \"Cowboy\" Ben Alman \nReleased under the MIT license\n\n[micromatch]: http://github.com/jonschlinkert/micromatch\n# pascalcase [](http://badge.fury.io/js/pascalcase)\n\n> Convert a string to pascal-case.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i pascalcase --save\n```\n\n## Usage\n\n```js\nvar pascalcase = require('pascalcase');\n\npascalcase('a');\n//=> 'A'\n\npascalcase('foo bar baz');\n//=> 'FooBarBaz'\n\npascalcase('foo_bar-baz');\n//=> 'FooBarBaz'\n\npascalcase('foo.bar.baz');\n//=> 'FooBarBaz'\n\npascalcase('foo/bar/baz');\n//=> 'FooBarBaz'\n\npascalcase('foo[bar)baz');\n//=> 'FooBarBaz'\n\npascalcase('#foo+bar*baz');\n//=> 'FooBarBaz'\n\npascalcase('$foo~bar`baz');\n//=> 'FooBarBaz'\n\npascalcase('_foo_bar-baz-');\n//=> 'FooBarBaz'\n```\n\n## Related projects\n\n* [justified](https://github.com/jonschlinkert/justified): Wrap words to a specified length and justified the text.\n* [pad-left](https://github.com/jonschlinkert/pad-left): Left pad a string with zeros or a specified string. Fastest implementation.\n* [pad-right](https://github.com/jonschlinkert/pad-right): Right pad a string with zeros or a specified string. Fastest implementation.\n* [repeat-string](https://github.com/jonschlinkert/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string.\n* [word-wrap](https://github.com/jonschlinkert/word-wrap): Wrap words to a specified length.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/pascalcase/issues/new)\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 19, 2015._\n# readable-stream\n\n***Node-core v8.11.1 streams for userland*** [](https://travis-ci.org/nodejs/readable-stream)\n\n[](https://nodei.co/npm/readable-stream/)\n[](https://nodei.co/npm/readable-stream/)\n\n[](https://saucelabs.com/u/readable-stream)\n\n```bash\nnpm install --save readable-stream\n```\n\n***Node-core streams for userland***\n\nThis package is a mirror of the Streams2 and Streams3 implementations in\nNode-core.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.11.1/docs/api/stream.html).\n\nIf you want to guarantee a stable streams base, regardless of what version of\nNode you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *\"stream\"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).\n\nAs of version 2.0.0 **readable-stream** uses semantic versioning.\n\n# Streams Working Group\n\n`readable-stream` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\n<a name=\"members\"></a>\n## Team Members\n\n* **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) <christopher.s.dickinson@gmail.com>\n - Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B\n* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) <calvin.metcalf@gmail.com>\n - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242\n* **Rod Vagg** ([@rvagg](https://github.com/rvagg)) <rod@vagg.org>\n - Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D\n* **Sam Newman** ([@sonewman](https://github.com/sonewman)) <newmansam@outlook.com>\n* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) <mathiasbuus@gmail.com>\n* **Domenic Denicola** ([@domenic](https://github.com/domenic)) <d@domenic.me>\n* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) <matteo.collina@gmail.com>\n - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E\n* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) <shestak.irina@gmail.com>\n# assert-plus\n\nThis library is a super small wrapper over node's assert module that has two\nthings: (1) the ability to disable assertions with the environment variable\nNODE\\_NDEBUG, and (2) some API wrappers for argument testing. Like\n`assert.string(myArg, 'myArg')`. As a simple example, most of my code looks\nlike this:\n\n```javascript\n var assert = require('assert-plus');\n\n function fooAccount(options, callback) {\n assert.object(options, 'options');\n assert.number(options.id, 'options.id');\n assert.bool(options.isManager, 'options.isManager');\n assert.string(options.name, 'options.name');\n assert.arrayOfString(options.email, 'options.email');\n assert.func(callback, 'callback');\n\n // Do stuff\n callback(null, {});\n }\n```\n\n# API\n\nAll methods that *aren't* part of node's core assert API are simply assumed to\ntake an argument, and then a string 'name' that's not a message; `AssertionError`\nwill be thrown if the assertion fails with a message like:\n\n AssertionError: foo (string) is required\n at test (/home/mark/work/foo/foo.js:3:9)\n at Object.<anonymous> (/home/mark/work/foo/foo.js:15:1)\n at Module._compile (module.js:446:26)\n at Object..js (module.js:464:10)\n at Module.load (module.js:353:31)\n at Function._load (module.js:311:12)\n at Array.0 (module.js:484:10)\n at EventEmitter._tickCallback (node.js:190:38)\n\nfrom:\n\n```javascript\n function test(foo) {\n assert.string(foo, 'foo');\n }\n```\n\nThere you go. You can check that arrays are of a homogeneous type with `Arrayof$Type`:\n\n```javascript\n function test(foo) {\n assert.arrayOfString(foo, 'foo');\n }\n```\n\nYou can assert IFF an argument is not `undefined` (i.e., an optional arg):\n\n```javascript\n assert.optionalString(foo, 'foo');\n```\n\nLastly, you can opt-out of assertion checking altogether by setting the\nenvironment variable `NODE_NDEBUG=1`. This is pseudo-useful if you have\nlots of assertions, and don't want to pay `typeof ()` taxes to v8 in\nproduction. Be advised: The standard functions re-exported from `assert` are\nalso disabled in assert-plus if NDEBUG is specified. Using them directly from\nthe `assert` module avoids this behavior.\n\nThe complete list of APIs is:\n\n* assert.array\n* assert.bool\n* assert.buffer\n* assert.func\n* assert.number\n* assert.finite\n* assert.object\n* assert.string\n* assert.stream\n* assert.date\n* assert.regexp\n* assert.uuid\n* assert.arrayOfArray\n* assert.arrayOfBool\n* assert.arrayOfBuffer\n* assert.arrayOfFunc\n* assert.arrayOfNumber\n* assert.arrayOfFinite\n* assert.arrayOfObject\n* assert.arrayOfString\n* assert.arrayOfStream\n* assert.arrayOfDate\n* assert.arrayOfRegexp\n* assert.arrayOfUuid\n* assert.optionalArray\n* assert.optionalBool\n* assert.optionalBuffer\n* assert.optionalFunc\n* assert.optionalNumber\n* assert.optionalFinite\n* assert.optionalObject\n* assert.optionalString\n* assert.optionalStream\n* assert.optionalDate\n* assert.optionalRegexp\n* assert.optionalUuid\n* assert.optionalArrayOfArray\n* assert.optionalArrayOfBool\n* assert.optionalArrayOfBuffer\n* assert.optionalArrayOfFunc\n* assert.optionalArrayOfNumber\n* assert.optionalArrayOfFinite\n* assert.optionalArrayOfObject\n* assert.optionalArrayOfString\n* assert.optionalArrayOfStream\n* assert.optionalArrayOfDate\n* assert.optionalArrayOfRegexp\n* assert.optionalArrayOfUuid\n* assert.AssertionError\n* assert.fail\n* assert.ok\n* assert.equal\n* assert.notEqual\n* assert.deepEqual\n* assert.notDeepEqual\n* assert.strictEqual\n* assert.notStrictEqual\n* assert.throws\n* assert.doesNotThrow\n* assert.ifError\n\n# Installation\n\n npm install assert-plus\n\n## License\n\nThe MIT License (MIT)\nCopyright (c) 2012 Mark Cavage\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n\n## Bugs\n\nSee <https://github.com/mcavage/node-assert-plus/issues>.\necc-jsbn\n========\n\nECC package based on [jsbn](https://github.com/andyperlitch/jsbn) from [Tom Wu](http://www-cs-students.stanford.edu/~tjw/).\n\nThis is a subset of the same interface as the [node compiled module](https://github.com/quartzjer/ecc), but works in the browser too.\n\nAlso uses point compression now from [https://github.com/kaielvin](https://github.com/kaielvin/jsbn-ec-point-compression).\n# websocket-extensions [](http://travis-ci.org/faye/websocket-extensions-node)\n\nA minimal framework that supports the implementation of WebSocket extensions in\na way that's decoupled from the main protocol. This library aims to allow a\nWebSocket extension to be written and used with any protocol library, by\ndefining abstract representations of frames and messages that allow modules to\nco-operate.\n\n`websocket-extensions` provides a container for registering extension plugins,\nand provides all the functions required to negotiate which extensions to use\nduring a session via the `Sec-WebSocket-Extensions` header. By implementing the\nAPIs defined in this document, an extension may be used by any WebSocket library\nbased on this framework.\n\n## Installation\n\n```\n$ npm install websocket-extensions\n```\n\n## Usage\n\nThere are two main audiences for this library: authors implementing the\nWebSocket protocol, and authors implementing extensions. End users of a\nWebSocket library or an extension should be able to use any extension by passing\nit as an argument to their chosen protocol library, without needing to know how\neither of them work, or how the `websocket-extensions` framework operates.\n\nThe library is designed with the aim that any protocol implementation and any\nextension can be used together, so long as they support the same abstract\nrepresentation of frames and messages.\n\n### Data types\n\nThe APIs provided by the framework rely on two data types; extensions will\nexpect to be given data and to be able to return data in these formats:\n\n#### *Frame*\n\n*Frame* is a structure representing a single WebSocket frame of any type. Frames\nare simple objects that must have at least the following properties, which\nrepresent the data encoded in the frame:\n\n| property | description |\n| ------------ | ------------------------------------------------------------------ |\n| `final` | `true` if the `FIN` bit is set, `false` otherwise |\n| `rsv1` | `true` if the `RSV1` bit is set, `false` otherwise |\n| `rsv2` | `true` if the `RSV2` bit is set, `false` otherwise |\n| `rsv3` | `true` if the `RSV3` bit is set, `false` otherwise |\n| `opcode` | the numeric opcode (`0`, `1`, `2`, `8`, `9`, or `10`) of the frame |\n| `masked` | `true` if the `MASK` bit is set, `false` otherwise |\n| `maskingKey` | a 4-byte `Buffer` if `masked` is `true`, otherwise `null` |\n| `payload` | a `Buffer` containing the (unmasked) application data |\n\n#### *Message*\n\nA *Message* represents a complete application message, which can be formed from\ntext, binary and continuation frames. It has the following properties:\n\n| property | description |\n| -------- | ----------------------------------------------------------------- |\n| `rsv1` | `true` if the first frame of the message has the `RSV1` bit set |\n| `rsv2` | `true` if the first frame of the message has the `RSV2` bit set |\n| `rsv3` | `true` if the first frame of the message has the `RSV3` bit set |\n| `opcode` | the numeric opcode (`1` or `2`) of the first frame of the message |\n| `data` | the concatenation of all the frame payloads in the message |\n\n### For driver authors\n\nA driver author is someone implementing the WebSocket protocol proper, and who\nwishes end users to be able to use WebSocket extensions with their library.\n\nAt the start of a WebSocket session, on both the client and the server side,\nthey should begin by creating an extension container and adding whichever\nextensions they want to use.\n\n```js\nvar Extensions = require('websocket-extensions'),\n deflate = require('permessage-deflate');\n\nvar exts = new Extensions();\nexts.add(deflate);\n```\n\nIn the following examples, `exts` refers to this `Extensions` instance.\n\n#### Client sessions\n\nClients will use the methods `generateOffer()` and `activate(header)`.\n\nAs part of the handshake process, the client must send a\n`Sec-WebSocket-Extensions` header to advertise that it supports the registered\nextensions. This header should be generated using:\n\n```js\nrequest.headers['sec-websocket-extensions'] = exts.generateOffer();\n```\n\nThis returns a string, for example `\"permessage-deflate;\nclient_max_window_bits\"`, that represents all the extensions the client is\noffering to use, and their parameters. This string may contain multiple offers\nfor the same extension.\n\nWhen the client receives the handshake response from the server, it should pass\nthe incoming `Sec-WebSocket-Extensions` header in to `exts` to activate the\nextensions the server has accepted:\n\n```js\nexts.activate(response.headers['sec-websocket-extensions']);\n```\n\nIf the server has sent any extension responses that the client does not\nrecognize, or are in conflict with one another for use of RSV bits, or that use\ninvalid parameters for the named extensions, then `exts.activate()` will\n`throw`. In this event, the client driver should fail the connection with\nclosing code `1010`.\n\n#### Server sessions\n\nServers will use the method `generateResponse(header)`.\n\nA server session needs to generate a `Sec-WebSocket-Extensions` header to send\nin its handshake response:\n\n```js\nvar clientOffer = request.headers['sec-websocket-extensions'],\n extResponse = exts.generateResponse(clientOffer);\n\nresponse.headers['sec-websocket-extensions'] = extResponse;\n```\n\nCalling `exts.generateResponse(header)` activates those extensions the client\nhas asked to use, if they are registered, asks each extension for a set of\nresponse parameters, and returns a string containing the response parameters for\nall accepted extensions.\n\n#### In both directions\n\nBoth clients and servers will use the methods `validFrameRsv(frame)`,\n`processIncomingMessage(message)` and `processOutgoingMessage(message)`.\n\nThe WebSocket protocol requires that frames do not have any of the `RSV` bits\nset unless there is an extension in use that allows otherwise. When processing\nan incoming frame, sessions should pass a *Frame* object to:\n\n```js\nexts.validFrameRsv(frame)\n```\n\nIf this method returns `false`, the session should fail the WebSocket connection\nwith closing code `1002`.\n\nTo pass incoming messages through the extension stack, a session should\nconstruct a *Message* object according to the above datatype definitions, and\ncall:\n\n```js\nexts.processIncomingMessage(message, function(error, msg) {\n // hand the message off to the application\n});\n```\n\nIf any extensions fail to process the message, then the callback will yield an\nerror and the session should fail the WebSocket connection with closing code\n`1010`. If `error` is `null`, then `msg` should be passed on to the application.\n\nTo pass outgoing messages through the extension stack, a session should\nconstruct a *Message* as before, and call:\n\n```js\nexts.processOutgoingMessage(message, function(error, msg) {\n // write message to the transport\n});\n```\n\nIf any extensions fail to process the message, then the callback will yield an\nerror and the session should fail the WebSocket connection with closing code\n`1010`. If `error` is `null`, then `message` should be converted into frames\n(with the message's `rsv1`, `rsv2`, `rsv3` and `opcode` set on the first frame)\nand written to the transport.\n\nAt the end of the WebSocket session (either when the protocol is explicitly\nended or the transport connection disconnects), the driver should call:\n\n```js\nexts.close(function() {})\n```\n\nThe callback is invoked when all extensions have finished processing any\nmessages in the pipeline and it's safe to close the socket.\n\n### For extension authors\n\nAn extension author is someone implementing an extension that transforms\nWebSocket messages passing between the client and server. They would like to\nimplement their extension once and have it work with any protocol library.\n\nExtension authors will not install `websocket-extensions` or call it directly.\nInstead, they should implement the following API to allow their extension to\nplug into the `websocket-extensions` framework.\n\nAn `Extension` is any object that has the following properties:\n\n| property | description |\n| -------- | ---------------------------------------------------------------------------- |\n| `name` | a string containing the name of the extension as used in negotiation headers |\n| `type` | a string, must be `\"permessage\"` |\n| `rsv1` | either `true` if the extension uses the RSV1 bit, `false` otherwise |\n| `rsv2` | either `true` if the extension uses the RSV2 bit, `false` otherwise |\n| `rsv3` | either `true` if the extension uses the RSV3 bit, `false` otherwise |\n\nIt must also implement the following methods:\n\n```js\next.createClientSession()\n```\n\nThis returns a *ClientSession*, whose interface is defined below.\n\n```js\next.createServerSession(offers)\n```\n\nThis takes an array of offer params and returns a *ServerSession*, whose\ninterface is defined below. For example, if the client handshake contains the\noffer header:\n\n```\nSec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover; server_max_window_bits=8, \\\n permessage-deflate; server_max_window_bits=15\n```\n\nthen the `permessage-deflate` extension will receive the call:\n\n```js\next.createServerSession([\n {server_no_context_takeover: true, server_max_window_bits: 8},\n {server_max_window_bits: 15}\n]);\n```\n\nThe extension must decide which set of parameters it wants to accept, if any,\nand return a *ServerSession* if it wants to accept the parameters and `null`\notherwise.\n\n#### *ClientSession*\n\nA *ClientSession* is the type returned by `ext.createClientSession()`. It must\nimplement the following methods, as well as the *Session* API listed below.\n\n```js\nclientSession.generateOffer()\n// e.g. -> [\n// {server_no_context_takeover: true, server_max_window_bits: 8},\n// {server_max_window_bits: 15}\n// ]\n```\n\nThis must return a set of parameters to include in the client's\n`Sec-WebSocket-Extensions` offer header. If the session wants to offer multiple\nconfigurations, it can return an array of sets of parameters as shown above.\n\n```js\nclientSession.activate(params) // -> true\n```\n\nThis must take a single set of parameters from the server's handshake response\nand use them to configure the client session. If the client accepts the given\nparameters, then this method must return `true`. If it returns any other value,\nthe framework will interpret this as the client rejecting the response, and will\n`throw`.\n\n#### *ServerSession*\n\nA *ServerSession* is the type returned by `ext.createServerSession(offers)`. It\nmust implement the following methods, as well as the *Session* API listed below.\n\n```js\nserverSession.generateResponse()\n// e.g. -> {server_max_window_bits: 8}\n```\n\nThis returns the set of parameters the server session wants to send in its\n`Sec-WebSocket-Extensions` response header. Only one set of parameters is\nreturned to the client per extension. Server sessions that would confict on\ntheir use of RSV bits are not activated.\n\n#### *Session*\n\nThe *Session* API must be implemented by both client and server sessions. It\ncontains two methods, `processIncomingMessage(message)` and\n`processOutgoingMessage(message)`.\n\n```js\nsession.processIncomingMessage(message, function(error, msg) { ... })\n```\n\nThe session must implement this method to take an incoming *Message* as defined\nabove, transform it in any way it needs, then return it via the callback. If\nthere is an error processing the message, this method should yield an error as\nthe first argument.\n\n```js\nsession.processOutgoingMessage(message, function(error, msg) { ... })\n```\n\nThe session must implement this method to take an outgoing *Message* as defined\nabove, transform it in any way it needs, then return it via the callback. If\nthere is an error processing the message, this method should yield an error as\nthe first argument.\n\nNote that both `processIncomingMessage()` and `processOutgoingMessage()` can\nperform their logic asynchronously, are allowed to process multiple messages\nconcurrently, and are not required to complete working on messages in the same\norder the messages arrive. `websocket-extensions` will reorder messages as your\nextension emits them and will make sure every extension is given messages in the\norder they arrive from the driver. This allows extensions to maintain state that\ndepends on the messages' wire order, for example keeping a DEFLATE compression\ncontext between messages.\n\n```js\nsession.close()\n```\n\nThe framework will call this method when the WebSocket session ends, allowing\nthe session to release any resources it's using.\n\n## Examples\n\n* Consumer: [websocket-driver](https://github.com/faye/websocket-driver-node)\n* Provider: [permessage-deflate](https://github.com/faye/permessage-deflate-node)\n# browserify-sign\n\n[](https://www.npmjs.org/package/browserify-sign)\n[](https://travis-ci.org/crypto-browserify/browserify-sign)\n[](https://david-dm.org/crypto-browserify/browserify-sign#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nA package to duplicate the functionality of node's crypto public key functions, much of this is based on [Fedor Indutny's](https://github.com/indutny) work on [indutny/tls.js](https://github.com/indutny/tls.js).\n\n## LICENSE\n\nISC\nOverview [](https://travis-ci.org/lydell/js-tokens)\n========\n\nA regex that tokenizes JavaScript.\n\n```js\nvar jsTokens = require(\"js-tokens\").default\n\nvar jsString = \"var foo=opts.foo;\\n...\"\n\njsString.match(jsTokens)\n// [\"var\", \" \", \"foo\", \"=\", \"opts\", \".\", \"foo\", \";\", \"\\n\", ...]\n```\n\nInstallation\n============\n\n`npm install js-tokens`\n\n```js\nimport jsTokens from \"js-tokens\"\n// or:\nvar jsTokens = require(\"js-tokens\").default\n```\n\nUsage\n=====\n\n### `jsTokens` ###\n\nA regex with the `g` flag that matches JavaScript tokens.\n\nThe regex _always_ matches, even invalid JavaScript and the empty string.\n\nThe next match is always directly after the previous.\n\n### `var token = matchToToken(match)` ###\n\n```js\nimport {matchToToken} from \"js-tokens\"\n// or:\nvar matchToToken = require(\"js-tokens\").matchToToken\n```\n\nTakes a `match` returned by `jsTokens.exec(string)`, and returns a `{type:\nString, value: String}` object. The following types are available:\n\n- string\n- comment\n- regex\n- number\n- name\n- punctuator\n- whitespace\n- invalid\n\nMulti-line comments and strings also have a `closed` property indicating if the\ntoken was closed or not (see below).\n\nComments and strings both come in several flavors. To distinguish them, check if\nthe token starts with `//`, `/*`, `'`, `\"` or `` ` ``.\n\nNames are ECMAScript IdentifierNames, that is, including both identifiers and\nkeywords. You may use [is-keyword-js] to tell them apart.\n\nWhitespace includes both line terminators and other whitespace.\n\n[is-keyword-js]: https://github.com/crissdev/is-keyword-js\n\nECMAScript support\n==================\n\nThe intention is to always support the latest ECMAScript version whose feature\nset has been finalized.\n\nIf adding support for a newer version requires changes, a new version with a\nmajor verion bump will be released.\n\nCurrently, ECMAScript 2018 is supported.\n\nInvalid code handling\n=====================\n\nUnterminated strings are still matched as strings. JavaScript strings cannot\ncontain (unescaped) newlines, so unterminated strings simply end at the end of\nthe line. Unterminated template strings can contain unescaped newlines, though,\nso they go on to the end of input.\n\nUnterminated multi-line comments are also still matched as comments. They\nsimply go on to the end of the input.\n\nUnterminated regex literals are likely matched as division and whatever is\ninside the regex.\n\nInvalid ASCII characters have their own capturing group.\n\nInvalid non-ASCII characters are treated as names, to simplify the matching of\nnames (except unicode spaces which are treated as whitespace). Note: See also\nthe [ES2018](#es2018) section.\n\nRegex literals may contain invalid regex syntax. They are still matched as\nregex literals. They may also contain repeated regex flags, to keep the regex\nsimple.\n\nStrings may contain invalid escape sequences.\n\nLimitations\n===========\n\nTokenizing JavaScript using regexes—in fact, _one single regex_—won’t be\nperfect. But that’s not the point either.\n\nYou may compare jsTokens with [esprima] by using `esprima-compare.js`.\nSee `npm run esprima-compare`!\n\n[esprima]: http://esprima.org/\n\n### Template string interpolation ###\n\nTemplate strings are matched as single tokens, from the starting `` ` `` to the\nending `` ` ``, including interpolations (whose tokens are not matched\nindividually).\n\nMatching template string interpolations requires recursive balancing of `{` and\n`}`—something that JavaScript regexes cannot do. Only one level of nesting is\nsupported.\n\n### Division and regex literals collision ###\n\nConsider this example:\n\n```js\nvar g = 9.82\nvar number = bar / 2/g\n\nvar regex = / 2/g\n```\n\nA human can easily understand that in the `number` line we’re dealing with\ndivision, and in the `regex` line we’re dealing with a regex literal. How come?\nBecause humans can look at the whole code to put the `/` characters in context.\nA JavaScript regex cannot. It only sees forwards. (Well, ES2018 regexes can also\nlook backwards. See the [ES2018](#es2018) section).\n\nWhen the `jsTokens` regex scans throught the above, it will see the following\nat the end of both the `number` and `regex` rows:\n\n```js\n/ 2/g\n```\n\nIt is then impossible to know if that is a regex literal, or part of an\nexpression dealing with division.\n\nHere is a similar case:\n\n```js\nfoo /= 2/g\nfoo(/= 2/g)\n```\n\nThe first line divides the `foo` variable with `2/g`. The second line calls the\n`foo` function with the regex literal `/= 2/g`. Again, since `jsTokens` only\nsees forwards, it cannot tell the two cases apart.\n\nThere are some cases where we _can_ tell division and regex literals apart,\nthough.\n\nFirst off, we have the simple cases where there’s only one slash in the line:\n\n```js\nvar foo = 2/g\nfoo /= 2\n```\n\nRegex literals cannot contain newlines, so the above cases are correctly\nidentified as division. Things are only problematic when there are more than\none non-comment slash in a single line.\n\nSecondly, not every character is a valid regex flag.\n\n```js\nvar number = bar / 2/e\n```\n\nThe above example is also correctly identified as division, because `e` is not a\nvalid regex flag. I initially wanted to future-proof by allowing `[a-zA-Z]*`\n(any letter) as flags, but it is not worth it since it increases the amount of\nambigous cases. So only the standard `g`, `m`, `i`, `y` and `u` flags are\nallowed. This means that the above example will be identified as division as\nlong as you don’t rename the `e` variable to some permutation of `gmiyus` 1 to 6\ncharacters long.\n\nLastly, we can look _forward_ for information.\n\n- If the token following what looks like a regex literal is not valid after a\n regex literal, but is valid in a division expression, then the regex literal\n is treated as division instead. For example, a flagless regex cannot be\n followed by a string, number or name, but all of those three can be the\n denominator of a division.\n- Generally, if what looks like a regex literal is followed by an operator, the\n regex literal is treated as division instead. This is because regexes are\n seldomly used with operators (such as `+`, `*`, `&&` and `==`), but division\n could likely be part of such an expression.\n\nPlease consult the regex source and the test cases for precise information on\nwhen regex or division is matched (should you need to know). In short, you\ncould sum it up as:\n\nIf the end of a statement looks like a regex literal (even if it isn’t), it\nwill be treated as one. Otherwise it should work as expected (if you write sane\ncode).\n\n### ES2018 ###\n\nES2018 added some nice regex improvements to the language.\n\n- [Unicode property escapes] should allow telling names and invalid non-ASCII\n characters apart without blowing up the regex size.\n- [Lookbehind assertions] should allow matching telling division and regex\n literals apart in more cases.\n- [Named capture groups] might simplify some things.\n\nThese things would be nice to do, but are not critical. They probably have to\nwait until the oldest maintained Node.js LTS release supports those features.\n\n[Unicode property escapes]: http://2ality.com/2017/07/regexp-unicode-property-escapes.html\n[Lookbehind assertions]: http://2ality.com/2017/05/regexp-lookbehind-assertions.html\n[Named capture groups]: http://2ality.com/2017/05/regexp-named-capture-groups.html\n\nLicense\n=======\n\n[MIT](LICENSE).\n[](https://travis-ci.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf#info=devDependencies)\n\nThe [UNIX command](http://en.wikipedia.org/wiki/Rm_(Unix)) `rm -rf` for node.\n\nInstall with `npm install rimraf`, or just drop rimraf.js somewhere.\n\n## API\n\n`rimraf(f, [opts], callback)`\n\nThe first parameter will be interpreted as a globbing pattern for files. If you\nwant to disable globbing you can do so with `opts.disableGlob` (defaults to\n`false`). This might be handy, for instance, if you have filenames that contain\nglobbing wildcard characters.\n\nThe callback will be called with an error if there is one. Certain\nerrors are handled for you:\n\n* Windows: `EBUSY` and `ENOTEMPTY` - rimraf will back off a maximum of\n `opts.maxBusyTries` times before giving up, adding 100ms of wait\n between each attempt. The default `maxBusyTries` is 3.\n* `ENOENT` - If the file doesn't exist, rimraf will return\n successfully, since your desired outcome is already the case.\n* `EMFILE` - Since `readdir` requires opening a file descriptor, it's\n possible to hit `EMFILE` if too many file descriptors are in use.\n In the sync case, there's nothing to be done for this. But in the\n async case, rimraf will gradually back off with timeouts up to\n `opts.emfileWait` ms, which defaults to 1000.\n\n## options\n\n* unlink, chmod, stat, lstat, rmdir, readdir,\n unlinkSync, chmodSync, statSync, lstatSync, rmdirSync, readdirSync\n\n In order to use a custom file system library, you can override\n specific fs functions on the options object.\n\n If any of these functions are present on the options object, then\n the supplied function will be used instead of the default fs\n method.\n\n Sync methods are only relevant for `rimraf.sync()`, of course.\n\n For example:\n\n ```javascript\n var myCustomFS = require('some-custom-fs')\n\n rimraf('some-thing', myCustomFS, callback)\n ```\n\n* maxBusyTries\n\n If an `EBUSY`, `ENOTEMPTY`, or `EPERM` error code is encountered\n on Windows systems, then rimraf will retry with a linear backoff\n wait of 100ms longer on each try. The default maxBusyTries is 3.\n\n Only relevant for async usage.\n\n* emfileWait\n\n If an `EMFILE` error is encountered, then rimraf will retry\n repeatedly with a linear backoff of 1ms longer on each try, until\n the timeout counter hits this max. The default limit is 1000.\n\n If you repeatedly encounter `EMFILE` errors, then consider using\n [graceful-fs](http://npm.im/graceful-fs) in your program.\n\n Only relevant for async usage.\n\n* glob\n\n Set to `false` to disable [glob](http://npm.im/glob) pattern\n matching.\n\n Set to an object to pass options to the glob module. The default\n glob options are `{ nosort: true, silent: true }`.\n\n Glob version 6 is used in this module.\n\n Relevant for both sync and async usage.\n\n* disableGlob\n\n Set to any non-falsey value to disable globbing entirely.\n (Equivalent to setting `glob: false`.)\n\n## rimraf.sync\n\nIt can remove stuff synchronously, too. But that's not so good. Use\nthe async API. It's better.\n\n## CLI\n\nIf installed with `npm install rimraf -g` it can be used as a global\ncommand `rimraf <path> [<path> ...]` which is useful for cross platform support.\n\n## mkdirp\n\nIf you need to create a directory recursively, check out\n[mkdirp](https://github.com/substack/node-mkdirp).\n# for-own [](https://www.npmjs.com/package/for-own) [](https://npmjs.org/package/for-own) [](https://npmjs.org/package/for-own) [](https://travis-ci.org/jonschlinkert/for-own)\n\n> Iterate over the own enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save for-own\n```\n\n## Usage\n\n```js\nvar forOwn = require('for-own');\n\nvar obj = {a: 'foo', b: 'bar', c: 'baz'};\nvar values = [];\nvar keys = [];\n\nforOwn(obj, function (value, key, o) {\n keys.push(key);\n values.push(value);\n});\n\nconsole.log(keys);\n//=> ['a', 'b', 'c'];\n\nconsole.log(values);\n//=> ['foo', 'bar', 'baz'];\n```\n\n## About\n\n### Related projects\n\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten \"Recursively flatten an array or arrays. This is the fastest implementation of array flatten.\")\n* [collection-map](https://www.npmjs.com/package/collection-map): Returns an array of mapped values from an array or object. | [homepage](https://github.com/jonschlinkert/collection-map \"Returns an array of mapped values from an array or object.\")\n* [for-in](https://www.npmjs.com/package/for-in): Iterate over the own and inherited enumerable properties of an object, and return an object… [more](https://github.com/jonschlinkert/for-in) | [homepage](https://github.com/jonschlinkert/for-in \"Iterate over the own and inherited enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 10 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [javiercejudo](https://github.com/javiercejudo) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 26, 2017._\nWebSocket-multiplex SockJS example\n==================================\n\nThis example is a copy of example from\n[websocket-multiplex](https://github.com/sockjs/websocket-multiplex/)\nproject:\n\n * https://github.com/sockjs/websocket-multiplex/\n\nTo run this example, first install dependencies:\n\n npm install\n\nAnd run a server:\n\n node server.js\n\nThat will spawn an http server at http://127.0.0.1:9999/ which will\nserve both html (served from the current directory) and also SockJS\nservice (under the [/multiplex](http://127.0.0.1:9999/multiplex)\npath).\n\nWith that set up, WebSocket-multiplex is able to push three virtual\nconnections over a single SockJS connection. See the code for details.\n# node-url\n\n[](https://travis-ci.org/defunctzombie/node-url)\n\nThis module has utilities for URL resolution and parsing meant to have feature parity with node.js core [url](http://nodejs.org/api/url.html) module.\n\n```js\nvar url = require('url');\n```\n\n## api\n\nParsed URL objects have some or all of the following fields, depending on\nwhether or not they exist in the URL string. Any parts that are not in the URL\nstring will not be in the parsed object. Examples are shown for the URL\n\n`'http://user:pass@host.com:8080/p/a/t/h?query=string#hash'`\n\n* `href`: The full URL that was originally parsed. Both the protocol and host are lowercased.\n\n Example: `'http://user:pass@host.com:8080/p/a/t/h?query=string#hash'`\n\n* `protocol`: The request protocol, lowercased.\n\n Example: `'http:'`\n\n* `host`: The full lowercased host portion of the URL, including port\n information.\n\n Example: `'host.com:8080'`\n\n* `auth`: The authentication information portion of a URL.\n\n Example: `'user:pass'`\n\n* `hostname`: Just the lowercased hostname portion of the host.\n\n Example: `'host.com'`\n\n* `port`: The port number portion of the host.\n\n Example: `'8080'`\n\n* `pathname`: The path section of the URL, that comes after the host and\n before the query, including the initial slash if present.\n\n Example: `'/p/a/t/h'`\n\n* `search`: The 'query string' portion of the URL, including the leading\n question mark.\n\n Example: `'?query=string'`\n\n* `path`: Concatenation of `pathname` and `search`.\n\n Example: `'/p/a/t/h?query=string'`\n\n* `query`: Either the 'params' portion of the query string, or a\n querystring-parsed object.\n\n Example: `'query=string'` or `{'query':'string'}`\n\n* `hash`: The 'fragment' portion of the URL including the pound-sign.\n\n Example: `'#hash'`\n\nThe following methods are provided by the URL module:\n\n### url.parse(urlStr, [parseQueryString], [slashesDenoteHost])\n\nTake a URL string, and return an object.\n\nPass `true` as the second argument to also parse\nthe query string using the `querystring` module.\nDefaults to `false`.\n\nPass `true` as the third argument to treat `//foo/bar` as\n`{ host: 'foo', pathname: '/bar' }` rather than\n`{ pathname: '//foo/bar' }`. Defaults to `false`.\n\n### url.format(urlObj)\n\nTake a parsed URL object, and return a formatted URL string.\n\n* `href` will be ignored.\n* `protocol` is treated the same with or without the trailing `:` (colon).\n * The protocols `http`, `https`, `ftp`, `gopher`, `file` will be\n postfixed with `://` (colon-slash-slash).\n * All other protocols `mailto`, `xmpp`, `aim`, `sftp`, `foo`, etc will\n be postfixed with `:` (colon)\n* `auth` will be used if present.\n* `hostname` will only be used if `host` is absent.\n* `port` will only be used if `host` is absent.\n* `host` will be used in place of `hostname` and `port`\n* `pathname` is treated the same with or without the leading `/` (slash)\n* `search` will be used in place of `query`\n* `query` (object; see `querystring`) will only be used if `search` is absent.\n* `search` is treated the same with or without the leading `?` (question mark)\n* `hash` is treated the same with or without the leading `#` (pound sign, anchor)\n\n### url.resolve(from, to)\n\nTake a base URL, and a href URL, and resolve them as a browser would for\nan anchor tag. Examples:\n\n url.resolve('/one/two/three', 'four') // '/one/two/four'\n url.resolve('http://example.com/', '/one') // 'http://example.com/one'\n url.resolve('http://example.com/one', '/two') // 'http://example.com/two'\n# pbkdf2\n\n[](https://www.npmjs.org/package/pbkdf2)\n[](https://travis-ci.org/crypto-browserify/pbkdf2)\n[](https://david-dm.org/crypto-browserify/pbkdf2#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nThis library provides the functionality of PBKDF2 with the ability to use any supported hashing algorithm returned from `crypto.getHashes()`\n\n## Usage\n\n```js\nvar pbkdf2 = require('pbkdf2')\nvar derivedKey = pbkdf2.pbkdf2Sync('password', 'salt', 1, 32, 'sha512')\n\n...\n```\n\nFor more information on the API, please see the relevant [Node documentation](https://nodejs.org/api/crypto.html#crypto_crypto_pbkdf2_password_salt_iterations_keylen_digest_callback).\n\nFor high performance, use the `async` variant (`pbkdf2.pbkdf2`), not `pbkdf2.pbkdf2Sync`, this variant has the oppurtunity to use `window.crypto.subtle` when browserified.\n\n## Credits\n\nThis module is a derivative of [cryptocoinjs/pbkdf2-sha256](https://github.com/cryptocoinjs/pbkdf2-sha256/), so thanks to [JP Richardson](https://github.com/jprichardson/) for laying the ground work.\n\nThank you to [FangDun Cai](https://github.com/fundon) for donating the package name on npm, if you're looking for his previous module it is located at [fundon/pbkdf2](https://github.com/fundon/pbkdf2).\nrandombytes\n===\n\n[](https://www.npmjs.org/package/randombytes) [](https://travis-ci.org/crypto-browserify/randombytes)\n\nrandombytes from node that works in the browser. In node you just get crypto.randomBytes, but in the browser it uses .crypto/msCrypto.getRandomValues\n\n```js\nvar randomBytes = require('randombytes');\nrandomBytes(16);//get 16 random bytes\nrandomBytes(16, function (err, resp) {\n // resp is 16 random bytes\n});\n```\n# buffer-xor\n\n[](http://travis-ci.org/crypto-browserify/buffer-xor)\n[](https://www.npmjs.org/package/buffer-xor)\n\n[](https://github.com/feross/standard)\n\nA simple module for bitwise-xor on buffers.\n\n## Examples\n\n``` javascript\nvar xor = require(\"buffer-xor\")\nvar a = new Buffer('00ff0f', 'hex')\nvar b = new Buffer('f0f0', 'hex')\n\nconsole.log(xor(a, b))\n// => <Buffer f0 0f>\n```\n\nOr for those seeking those few extra cycles, perform the operation in place:\n\n``` javascript\nvar xorInplace = require(\"buffer-xor/inplace\")\nvar a = new Buffer('00ff0f', 'hex')\nvar b = new Buffer('f0f0', 'hex')\n\nconsole.log(xorInplace(a, b))\n// => <Buffer f0 0f>\n// NOTE: xorInplace will return the shorter slice of its parameters\n\n// See that a has been mutated\nconsole.log(a)\n// => <Buffer f0 0f 0f>\n```\n\n## License [MIT](LICENSE)\n# async-each\n\nNo-bullshit, ultra-simple, 35-lines-of-code async parallel forEach function for JavaScript.\n\nWe don't need junky 30K async libs. Really.\n\nFor browsers and node.js.\n\n## Installation\n* Just include async-each before your scripts.\n* `npm install async-each` if you’re using node.js.\n* `bower install async-each` if you’re using [Bower](http://bower.io).\n\n## Usage\n\n* `each(array, iterator, callback);` — `Array`, `Function`, `(optional) Function`\n* `iterator(item, next)` receives current item and a callback that will mark the item as done. `next` callback receives optional `error, transformedItem` arguments.\n* `callback(error, transformedArray)` optionally receives first error and transformed result `Array`.\n\n```javascript\nvar each = require('async-each');\neach(['a.js', 'b.js', 'c.js'], fs.readFile, function(error, contents) {\n if (error) console.error(error);\n console.log('Contents for a, b and c:', contents);\n});\n\n// Alternatively in browser:\nasyncEach(list, fn, callback);\n```\n\n## License\n\nThe MIT License (MIT)\n\nCopyright (c) 2016 Paul Miller [(paulmillr.com)](http://paulmillr.com)\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the “Software”), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers) \n[](#sponsors)\n\nA tiny node.js debugging utility modelled after node core's debugging technique.\n\n**Discussion around the V3 API is under way [here](https://github.com/visionmedia/debug/issues/370)**\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample _app.js_:\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %s', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample _worker.js_:\n\n```js\nvar debug = require('debug')('worker');\n\nsetInterval(function(){\n debug('doing some work');\n}, 1000);\n```\n\n The __DEBUG__ environment variable is then used to enable these based on space or comma-delimited names. Here are some examples:\n\n \n\n \n\n#### Windows note\n\n On Windows the environment variable is set using the `set` command.\n\n ```cmd\n set DEBUG=*,-not_this\n ```\n\n Note that PowerShell uses different syntax to set environment variables.\n\n ```cmd\n $env:DEBUG = \"*,-not_this\"\n ```\n\nThen, run the program to be debugged as usual.\n\n## Millisecond diff\n\n When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n \n\n When stdout is not a TTY, `Date#toUTCString()` is used, making it more useful for logging the debug information as shown below:\n\n \n\n## Conventions\n\n If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\".\n\n## Wildcards\n\n The `*` character may be used as a wildcard. Suppose for example your library has debuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\", instead of listing all three with `DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do `DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\n You can also exclude specific debuggers by prefixing them with a \"-\" character. For example, `DEBUG=*,-connect:*` would include all debuggers except those starting with \"connect:\".\n\n## Environment Variables\n\n When running through Node.js, you can set a few environment variables that will\n change the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n __Note:__ The environment variables beginning with `DEBUG_` end up being\n converted into an Options object that gets used with `%o`/`%O` formatters.\n See the Node.js documentation for\n [`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\n for the complete list.\n\n## Formatters\n\n Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. Below are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\n You can add custom formatters by extending the `debug.formatters` object. For example, if you wanted to add support for rendering a Buffer as hex with `%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser support\n You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\n or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\n if you don't want to build it yourself.\n\n Debug's enable state is currently persisted by `localStorage`.\n Consider the situation shown below where you have `worker:a` and `worker:b`,\n and wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n#### Web Inspector Colors\n\n Colors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\n option. These are WebKit web inspectors, Firefox ([since version\n 31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\n and the Firebug plugin for Firefox (any version).\n\n Colored output looks something like:\n\n \n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample _stdout.js_:\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n \n## Backers\n\nSupport us with a monthly donation and help us continue our activities. 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src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2016 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# regexp-tree\n\n[](https://travis-ci.org/DmitrySoshnikov/regexp-tree) [](https://badge.fury.io/js/regexp-tree) [](https://www.npmjs.com/package/regexp-tree)\n\nRegular expressions processor in JavaScript\n\nTL;DR: **RegExp Tree** is a _regular expressions processor_, which includes _parser_, _traversal_, _transformer_, _optimizer_, and _interpreter_ APIs.\n\nYou can get an overview of the tool in [this article](https://medium.com/@DmitrySoshnikov/regexp-tree-a-regular-expressions-parser-with-a-simple-ast-format-bcd4d5580df6).\n\n### Table of Contents\n\n- [Installation](#installation)\n- [Development](#development)\n- [Usage as a CLI](#usage-as-a-cli)\n- [Usage from Node](#usage-from-node)\n- [Capturing locations](#capturing-locations)\n- [Using traversal API](#using-traversal-api)\n- [Using transform API](#using-transform-api)\n - [Transform plugins](#transform-plugins)\n- [Using generator API](#using-generator-api)\n- [Using optimizer API](#using-optimizer-api)\n - [Optimizer ESLint plugin](#optimizer-eslint-plugin)\n- [Using compat-transpiler API](#using-compat-transpiler-api)\n - [Compat-transpiler Babel plugin](#compat-transpiler-babel-plugin)\n- [RegExp extensions](#regexp-extensions)\n - [RegExp extensions Babel plugin](#regexp-extensions-babel-plugin)\n- [Creating RegExp objects](#creating-regexp-objects)\n- [Executing regexes](#executing-regexes)\n- [Using interpreter API](#using-interpreter-api)\n - [Printing NFA/DFA tables](#printing-nfadfa-tables)\n- [AST nodes specification](#ast-nodes-specification)\n\n### Installation\n\nThe parser can be installed as an [npm module](https://www.npmjs.com/package/regexp-tree):\n\n```\nnpm install -g regexp-tree\n```\n\nYou can also [try it online](https://astexplorer.net/#/gist/4ea2b52f0e546af6fb14f9b2f5671c1c/39b55944da3e5782396ffa1fea3ba68d126cd394) using _AST Explorer_.\n\n### Development\n\n1. Fork https://github.com/DmitrySoshnikov/regexp-tree repo\n2. If there is an actual issue from the [issues](https://github.com/DmitrySoshnikov/regexp-tree/issues) list you'd like to work on, feel free to assign it yourself, or comment on it to avoid collisions (open a new issue if needed)\n3. Make your changes\n4. Make sure `npm test` still passes (add new tests if needed)\n5. Submit a PR\n\nThe _regexp-tree_ parser is implemented as an automatic LR parser using [Syntax](https://www.npmjs.com/package/syntax-cli) tool. The parser module is generated from the [regexp grammar](https://github.com/DmitrySoshnikov/regexp-tree/blob/master/src/parser/regexp.bnf), which is based on the regular expressions grammar used in ECMAScript.\n\nFor development from the github repository, run `build` command to generate the parser module, and transpile JS code:\n\n```\ngit clone https://github.com/<your-github-account>/regexp-tree.git\ncd regexp-tree\nnpm install\nnpm run build\n```\n\n> NOTE: JS code transpilation is used to support older versions of Node. For faster development cycle you can use `npm run watch` command, which continuously transpiles JS code.\n\n### Usage as a CLI\n\n**Note:** the CLI is exposed as its own [regexp-tree-cli](https://www.npmjs.com/package/regexp-tree-cli) module.\n\nCheck the options available from CLI:\n\n```\nregexp-tree-cli --help\n```\n\n```\nUsage: regexp-tree-cli [options]\n\nOptions:\n -e, --expression A regular expression to be parsed\n -l, --loc Whether to capture AST node locations\n -o, --optimize Applies optimizer on the passed expression\n -c, --compat Applies compat-transpiler on the passed expression\n -t, --table Print NFA/DFA transition tables (nfa/dfa/all)\n```\n\nTo parse a regular expression, pass `-e` option:\n\n```\nregexp-tree-cli -e '/a|b/i'\n```\n\nWhich produces an AST node corresponding to this regular expression:\n\n```js\n{\n type: 'RegExp',\n body: {\n type: 'Disjunction',\n left: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n right: {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n },\n flags: 'i',\n}\n```\n\n> NOTE: the format of a regexp is `/ Body / OptionalFlags`.\n\n### Usage from Node\n\nThe parser can also be used as a Node module:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconsole.log(regexpTree.parse(/a|b/i)); // RegExp AST\n```\n\nNote, _regexp-tree_ supports parsing regexes from strings, and also from actual `RegExp` objects (in general -- from any object which can be coerced to a string). If some feature is not implemented yet in an actual JavaScript RegExp, it should be passed as a string:\n\n```js\n// Pass an actual JS RegExp object.\nregexpTree.parse(/a|b/i);\n\n// Pass a string, since `s` flag may not be supported in older versions.\nregexpTree.parse('/./s');\n```\n\nAlso note, that in string-mode, escaping is done using two slashes `\\\\` per JavaScript:\n\n```js\n// As an actual regexp.\nregexpTree.parse(/\\n/);\n\n// As a string.\nregexpTree.parse('/\\\\n/');\n```\n\n### Capturing locations\n\nFor source code transformation tools it might be useful also to capture _locations_ of the AST nodes. From the command line it's controlled via the `-l` option:\n\n```\nregexp-tree-cli -e '/ab/' -l\n```\n\nThis attaches `loc` object to each AST node:\n\n```js\n{\n type: 'RegExp',\n body: {\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97,\n loc: {\n start: {\n line: 1,\n column: 1,\n offset: 1,\n },\n end: {\n line: 1,\n column: 2,\n offset: 2,\n },\n }\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98,\n loc: {\n start: {\n line: 1,\n column: 2,\n offset: 2,\n },\n end: {\n line: 1,\n column: 3,\n offset: 3,\n },\n }\n }\n ],\n loc: {\n start: {\n line: 1,\n column: 1,\n offset: 1,\n },\n end: {\n line: 1,\n column: 3,\n offset: 3,\n },\n }\n },\n flags: '',\n loc: {\n start: {\n line: 1,\n column: 0,\n offset: 0,\n },\n end: {\n line: 1,\n column: 4,\n offset: 4,\n },\n }\n}\n```\n\nFrom Node it's controlled via `setOptions` method exposed on the parser:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst parsed = regexpTree\n .parser\n .setOptions({captureLocations: true})\n .parse(/a|b/);\n```\n\nThe `setOptions` method sets global options, which are preserved between calls. It is also possible to provide options per a single `parse` call, which might be more preferred:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst parsed = regexpTree.parse(/a|b/, {\n captureLocations: true,\n});\n```\n\n### Using traversal API\n\nThe [traverse](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/traverse) module allows handling needed AST nodes using the _visitor_ pattern. In Node the module is exposed as the `regexpTree.traverse` method. Handlers receive an instance of the [NodePath](https://github.com/DmitrySoshnikov/regexp-tree/blob/master/src/traverse/README.md#nodepath-class) class, which encapsulates `node` itself, its `parent` node, `property`, and `index` (in case the node is part of a collection).\n\nVisiting a node follows this algorithm:\n- call `pre` handler.\n- recurse into node's children.\n- call `post` handler.\n\nFor each node type of interest, you can provide either:\n- a function (`pre`).\n- an object with members `pre` and `post`.\n\nYou can also provide a `*` handler which will be executed on every node.\n\nExample:\n\n```js\nconst regexpTree = require('regexp-tree');\n\n// Get AST.\nconst ast = regexpTree.parse('/[a-z]{1,}/');\n\n// Traverse AST nodes.\nregexpTree.traverse(ast, {\n\n // Visit every node before any type-specific handlers.\n '*': function({node}) {\n ...\n },\n\n // Handle \"Quantifier\" node type.\n Quantifier({node}) {\n ...\n },\n\n // Handle \"Char\" node type, before and after.\n Char: {\n pre({node}) {\n ...\n },\n post({node}) {\n ...\n }\n }\n\n});\n\n// Generate the regexp.\nconst re = regexpTree.generate(ast);\n\nconsole.log(re); // '/[a-z]+/'\n```\n\n### Using transform API\n\n> NOTE: you can play with transformation APIs, and write actual transforms for quick tests in AST Explorer. See [this example](http://astexplorer.net/#/gist/d293d22742b42cd1f7ee7b7e5dc6f697/39b0aabc42fb6fb106b9e368341d3300098f08c0).\n\nWhile traverse module provides basic traversal API, which can be used for any purposes of AST handling, _transform_ module focuses mainly on _transformation_ of regular expressions.\n\nIt accepts a regular expressions in different formats (string, an actual `RegExp` object, or an AST), applies a set of transformations, and retuns an instance of [TransformResult](https://github.com/DmitrySoshnikov/regexp-tree/blob/master/src/transform/README.md#transformresult). Handles receive as a parameter the same [NodePath](https://github.com/DmitrySoshnikov/regexp-tree/blob/master/src/traverse/README.md#nodepath-class) object used in traverse.\n\nExample:\n\n```js\nconst regexpTree = require('regexp-tree');\n\n// Handle nodes.\nconst re = regexpTree.transform('/[a-z]{1,}/i', {\n\n /**\n * Handle \"Quantifier\" node type,\n * transforming `{1,}` quantifier to `+`.\n */\n Quantifier(path) {\n const {node} = path;\n\n // {1,} -> +\n if (\n node.kind === 'Range' &&\n node.from === 1 &&\n !node.to\n ) {\n path.replace({\n type: 'Quantifier',\n kind: '+',\n greedy: node.greedy,\n });\n }\n },\n});\n\nconsole.log(re.toString()); // '/[a-z]+/i'\nconsole.log(re.toRegExp()); // /[a-z]+/i\nconsole.log(re.getAST()); // AST for /[a-z]+/i\n```\n\n#### Transform plugins\n\nA _transformation plugin_ is a module which exports a _transformation handler_. We have seen [above](#using-transform-api) how we can pass a handler object directly to the `regexpTree.transform` method, here we extract it into a separate module, so it can be implemented and shared independently:\n\nExample of a plugin:\n\n```js\n// file: ./regexp-tree-a-to-b-transform.js\n\n/**\n * This plugin replaces chars 'a' with chars 'b'.\n */\nmodule.exports = {\n Char({node}) {\n if (node.kind === 'simple' && node.value === 'a') {\n node.value = 'b';\n node.symbol = 'b';\n node.codePoint = 98;\n }\n },\n};\n```\n\nOnce we have this plugin ready, we can require it, and pass to the `transform` function:\n\n```js\nconst regexpTree = require('regexp-tree');\nconst plugin = require('./regexp-tree-a-to-b-transform');\n\nconst re = regexpTree.transform(/(a|c)a+[a-z]/, plugin);\n\nconsole.log(re.toRegExp()); // /(b|c)b+[b-z]/\n```\n\n> NOTE: we can also pass a _list of plugins_ to the `regexpTree.transform`. In this case the plugins are applied in one pass in order. Another approach is to run several sequential calls to `transform`, setting up a pipeline, when a transformed AST is passed further to another plugin, etc.\n\nYou can see other examples of transform plugins in the [optimizer/transforms](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/optimizer/transforms) or in the [compat-transpiler/transforms](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/compat-transpiler/transforms) directories.\n\n### Using generator API\n\nThe [generator](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/generator) module generates regular expressions from corresponding AST nodes. In Node the module is exposed as `regexpTree.generate` method.\n\nExample:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst re = regexpTree.generate({\n type: 'RegExp',\n body: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n flags: 'i',\n});\n\nconsole.log(re); // '/a/i'\n```\n\n### Using optimizer API\n\n[Optimizer](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/optimizer) transforms your regexp into an _optimized_ version, replacing some sub-expressions with their idiomatic patterns. This might be good for different kinds of minifiers, as well as for regexp machines.\n\n> NOTE: the Optimizer is implemented as a set of _regexp-tree_ [plugins](#transform-plugins).\n\nExample:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst originalRe = /[a-zA-Z_0-9][A-Z_\\da-z]*\\e{1,}/;\n\nconst optimizedRe = regexpTree\n .optimize(originalRe)\n .toRegExp();\n\nconsole.log(optimizedRe); // /\\w+e+/\n```\n\nFrom CLI the optimizer is available via `--optimize` (`-o`) option:\n\n```\nregexp-tree-cli -e '/[a-zA-Z_0-9][A-Z_\\da-z]*\\e{1,}/' -o\n```\n\nResult:\n\n```\nOptimized: /\\w+e+/\n```\n\nSee the [optimizer README](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/optimizer) for more details.\n\n#### Optimizer ESLint plugin\n\nThe [optimizer](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/optimizer) module is also available as an _ESLint plugin_, which can be installed at: [eslint-plugin-optimize-regex](https://www.npmjs.com/package/eslint-plugin-optimize-regex).\n\n### Using compat-transpiler API\n\nThe [compat-transpiler](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/compat-transpiler) module translates your regexp in new format or in new syntax, into an equivalent regexp in a legacy representation, so it can be used in engines which don't yet implement the new syntax.\n\n> NOTE: the compat-transpiler is implemented as a set of _regexp-tree_ [plugins](#transform-plugins).\n\nExample, \"dotAll\" `s` flag:\n\n```js\n/./s\n```\n\nIs translated into:\n\n```js\n/[\\0-\\uFFFF]/\n```\n\nOr [named capturing groups](#named-capturing-group):\n\n```js\n/(?<value>a)\\k<value>\\1/\n```\n\nBecomes:\n\n```js\n/(a)\\1\\1/\n```\n\nTo use the API from Node:\n\n```js\nconst regexpTree = require('regexp-tree');\n\n// Using new syntax.\nconst originalRe = '/(?<all>.)\\\\k<all>/s';\n\n// For legacy engines.\nconst compatTranspiledRe = regexpTree\n .compatTranspile(originalRe)\n .toRegExp();\n\nconsole.log(compatTranspiledRe); // /([\\0-\\uFFFF])\\1/\n```\n\nFrom CLI the compat-transpiler is available via `--compat` (`-c`) option:\n\n```\nregexp-tree-cli -e '/(?<all>.)\\k<all>/s' -c\n```\n\nResult:\n\n```\nCompat: /([\\0-\\uFFFF])\\1/\n```\n\n#### Compat-transpiler Babel plugin\n\nThe [compat-transpiler](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/compat-transpiler) module is also available as a _Babel plugin_, which can be installed at: [babel-plugin-transform-modern-regexp](https://www.npmjs.com/package/babel-plugin-transform-modern-regexp).\n\nNote, the plugin also includes [extended regexp](#regexp-extensions) features.\n\n### RegExp extensions\n\nBesides future proposals, like [named capturing group](#named-capturing-group), and other which are being currently standardized, _regexp-tree_ also supports _non-standard_ features.\n\n> NOTE: _\"non-standard\"_ means specifically ECMAScript standard, since in other regexp egnines, e.g. PCRE, Python, etc. these features are standard.\n\nOne of such featurs is `x` flag, which enables _extended_ mode of regular expressions. In this mode most of whitespaces are ignored, and expressions can use #-comments.\n\nExample:\n\n```regex\n/\n # A regular expression for date.\n\n (?<year>\\d{4})- # year part of a date\n (?<month>\\d{2})- # month part of a date\n (?<day>\\d{2}) # day part of a date\n\n/x\n```\n\nThis is normally parsed by the _regexp-tree_ parser, and [compat-transpiler](#using-compat-transpiler-api) has full support for it; it's translated into:\n\n```regex\n/(\\d{4})-(\\d{2})-(\\d{2})/\n```\n\n#### RegExp extensions Babel plugin\n\nThe regexp extensions are also available as a _Babel plugin_, which can be installed at: [babel-plugin-transform-modern-regexp](https://www.npmjs.com/package/babel-plugin-transform-modern-regexp).\n\nNote, the plugin also includes [compat-transpiler](#using-compat-transpiler-api) features.\n\n### Creating RegExp objects\n\nTo create an actual `RegExp` JavaScript object, we can use `regexpTree.toRegExp` method:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst re = regexpTree.toRegExp('/[a-z]/i');\n\nconsole.log(\n re.test('a'), // true\n re.test('Z'), // true\n);\n```\n\n### Executing regexes\n\nIt is also possible to execute regular expressions using `exec` API method, which has support for new syntax, and features, such as [named capturing group](#named-capturing-group), etc:\n\n```js\nconst regexpTree = require('regexp-tree');\n\nconst re = `/\n\n # A regular expression for date.\n\n (?<year>\\\\d{4})- # year part of a date\n (?<month>\\\\d{2})- # month part of a date\n (?<day>\\\\d{2}) # day part of a date\n\n/x`;\n\nconst string = '2017-04-14';\n\nconst result = regexpTree.exec(re, string);\n\nconsole.log(result.groups); // {year: '2017', month: '04', day: '14'}\n```\n\n### Using interpreter API\n\n> NOTE: you can read more about implementation details of the interpreter in [this series of articles](https://medium.com/@DmitrySoshnikov/building-a-regexp-machine-part-1-regular-grammars-d4986b585d7e).\n\nIn addition to executing regular expressions using JavaScript built-in RegExp engine, RegExp Tree also implements own [interpreter](https://github.com/DmitrySoshnikov/regexp-tree/tree/master/src/interpreter/finite-automaton) based on classic NFA/DFA finite automaton engine.\n\nCurrently it aims educational purposes -- to trace the regexp matching process, transitioning in NFA/DFA states. It also allows building state transitioning table, which can be used for custom implementation. In API the module is exposed as `fa` (finite-automaton) object.\n\nExample:\n\n```js\nconst {fa} = require('regexp-tree');\n\nconst re = /ab|c*/;\n\nconsole.log(fa.test(re, 'ab')); // true\nconsole.log(fa.test(re, '')); // true\nconsole.log(fa.test(re, 'c')); // true\n\n// NFA, and its transition table.\nconst nfa = fa.toNFA(re);\nconsole.log(nfa.getTransitionTable());\n\n// DFA, and its transition table.\nconst dfa = fa.toDFA(re);\nconsole.log(dfa.getTransitionTable());\n```\n\nFor more granular work with NFA and DFA, `fa` module also exposes convenient builders, so you can build NFA fragments directly:\n\n```js\nconst {fa} = require('regexp-tree');\n\nconst {\n alt,\n char,\n or,\n rep,\n} = fa.builders;\n\n// ab|c*\nconst re = or(\n alt(char('a'), char('b')),\n rep(char('c'))\n);\n\nconsole.log(re.matches('ab')); // true\nconsole.log(re.matches('')); // true\nconsole.log(re.matches('c')); // true\n\n// Build DFA from NFA\nconst {DFA} = fa;\n\nconst reDFA = new DFA(re);\n\nconsole.log(reDFA.matches('ab')); // true\nconsole.log(reDFA.matches('')); // true\nconsole.log(reDFA.matches('c')); // true\n```\n\n#### Printing NFA/DFA tables\n\nThe `--table` option allows displaying NFA/DFA transition tables. RegExp Tree also applies _DFA minimization_ (using _N-equivalence_ algorithm), and produces the minimal transition table as its final result.\n\nIn the example below for the `/a|b|c/` regexp, we first obtain the NFA transition table, which is further converted to the original DFA transition table (down from the 10 non-deterministic states to 4 deterministic states), and eventually minimized to the final DFA table (from 4 to only 2 states).\n\n```\n./bin/regexp-tree-cli -e '/a|b|c/' --table all\n```\n\nResult:\n\n```\n> - starting\n✓ - accepting\n\nNFA transition table:\n\n┌─────┬───┬───┬────┬─────────────┐\n│ │ a │ b │ c │ ε* │\n├─────┼───┼───┼────┼─────────────┤\n│ 1 > │ │ │ │ {1,2,3,7,9} │\n├─────┼───┼───┼────┼─────────────┤\n│ 2 │ │ │ │ {2,3,7} │\n├─────┼───┼───┼────┼─────────────┤\n│ 3 │ 4 │ │ │ 3 │\n├─────┼───┼───┼────┼─────────────┤\n│ 4 │ │ │ │ {4,5,6} │\n├─────┼───┼───┼────┼─────────────┤\n│ 5 │ │ │ │ {5,6} │\n├─────┼───┼───┼────┼─────────────┤\n│ 6 ✓ │ │ │ │ 6 │\n├─────┼───┼───┼────┼─────────────┤\n│ 7 │ │ 8 │ │ 7 │\n├─────┼───┼───┼────┼─────────────┤\n│ 8 │ │ │ │ {8,5,6} │\n├─────┼───┼───┼────┼─────────────┤\n│ 9 │ │ │ 10 │ 9 │\n├─────┼───┼───┼────┼─────────────┤\n│ 10 │ │ │ │ {10,6} │\n└─────┴───┴───┴────┴─────────────┘\n\nDFA: Original transition table:\n\n┌─────┬───┬───┬───┐\n│ │ a │ b │ c │\n├─────┼───┼───┼───┤\n│ 1 > │ 4 │ 3 │ 2 │\n├─────┼───┼───┼───┤\n│ 2 ✓ │ │ │ │\n├─────┼───┼───┼───┤\n│ 3 ✓ │ │ │ │\n├─────┼───┼───┼───┤\n│ 4 ✓ │ │ │ │\n└─────┴───┴───┴───┘\n\nDFA: Minimized transition table:\n\n┌─────┬───┬───┬───┐\n│ │ a │ b │ c │\n├─────┼───┼───┼───┤\n│ 1 > │ 2 │ 2 │ 2 │\n├─────┼───┼───┼───┤\n│ 2 ✓ │ │ │ │\n└─────┴───┴───┴───┘\n```\n\n### AST nodes specification\n\nBelow are the AST node types for different regular expressions patterns:\n\n- [Char](#char)\n - [Simple char](#simple-char)\n - [Escaped char](#escaped-char)\n - [Meta char](#meta-char)\n - [Control char](#control-char)\n - [Hex char-code](#hex-char-code)\n - [Decimal char-code](#decimal-char-code)\n - [Octal char-code](#octal-char-code)\n - [Unicode](#unicode)\n- [Character class](#character-class)\n - [Positive character class](#positive-character-class)\n - [Negative character class](#negative-character-class)\n - [Character class ranges](#character-class-ranges)\n- [Alternative](#alternative)\n- [Disjunction](#disjunction)\n- [Groups](#groups)\n - [Capturing group](#capturing-group)\n - [Named capturing group](#named-capturing-group)\n - [Non-capturing group](#non-capturing-group)\n - [Backreferences](#backreferences)\n- [Quantifiers](#quantifiers)\n - [? zero-or-one](#-zero-or-one)\n - [* zero-or-more](#-zero-or-more)\n - [+ one-or-more](#-one-or-more)\n - [Range-based quantifiers](#range-based-quantifiers)\n - [Exact number of matches](#exact-number-of-matches)\n - [Open range](#open-range)\n - [Closed range](#closed-range)\n - [Non-greedy](#non-greedy)\n- [Assertions](#assertions)\n - [^ begin marker](#-begin-marker)\n - [$ end marker](#-end-marker)\n - [Boundary assertions](#boundary-assertions)\n - [Lookahead assertions](#lookahead-assertions)\n - [Positive lookahead assertion](#positive-lookahead-assertion)\n - [Negative lookahead assertion](#negative-lookahead-assertion)\n - [Lookbehind assertions](#lookbehind-assertions)\n - [Positive lookbehind assertion](#positive-lookbehind-assertion)\n - [Negative lookbehind assertion](#negative-lookbehind-assertion)\n\n#### Char\n\nA basic building block, single character. Can be _escaped_, and be of different _kinds_.\n\n##### Simple char\n\nBasic _non-escaped_ char in a regexp:\n\n```\nz\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: 'z',\n symbol: 'z',\n kind: 'simple',\n codePoint: 122\n}\n```\n\n> NOTE: to test this from CLI, the char should be in an actual regexp -- `/z/`.\n\n##### Escaped char\n\n```\n\\z\n```\n\nThe same value, `escaped` flag is added:\n\n```js\n{\n type: 'Char',\n value: 'z',\n symbol: 'z',\n kind: 'simple',\n codePoint: 122,\n escaped: true\n}\n```\n\nEscaping is mostly used with meta symbols:\n\n```\n// Syntax error\n*\n```\n\n```\n\\*\n```\n\nOK, node:\n\n```js\n{\n type: 'Char',\n value: '*',\n symbol: '*',\n kind: 'simple',\n codePoint: 42,\n escaped: true\n}\n```\n\n##### Meta char\n\nA _meta character_ should not be confused with an [escaped char](#escaped-char).\n\nExample:\n\n```\n\\n\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\n',\n symbol: '\\n',\n kind: 'meta',\n codePoint: 10\n}\n```\n\nAmong other meta character are: `.`, `\\f`, `\\r`, `\\n`, `\\t`, `\\v`, `\\0`, `[\\b]` (backspace char), `\\s`, `\\S`, `\\w`, `\\W`, `\\d`, `\\D`.\n\n> NOTE: Meta characters representing ranges (like `.`, `\\s`, etc.) have `undefined` value for `symbol` and `NaN` for `codePoint`.\n\n> NOTE: `\\b` and `\\B` are parsed as `Assertion` node type, not `Char`.\n\n##### Control char\n\nA char preceded with `\\c`, e.g. `\\cx`, which stands for `CTRL+x`:\n\n```\n\\cx\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\cx',\n symbol: undefined,\n kind: 'control',\n codePoint: NaN\n}\n```\n\n##### HEX char-code\n\nA char preceded with `\\x`, followed by a HEX-code, e.g. `\\x3B` (symbol `;`):\n\n```\n\\x3B\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\x3B',\n symbol: ';',\n kind: 'hex',\n codePoint: 59\n}\n```\n\n##### Decimal char-code\n\nChar-code:\n\n```\n\\42\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\42',\n symbol: '*',\n kind: 'decimal',\n codePoint: 42\n}\n```\n\n##### Octal char-code\n\nChar-code started with `\\0`, followed by an octal number:\n\n```\n\\073\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\073',\n symbol: ';',\n kind: 'oct',\n codePoint: 59\n}\n```\n\n##### Unicode\n\nUnicode char started with `\\u`, followed by a hex number:\n\n```\n\\u003B\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\u003B',\n symbol: ';',\n kind: 'unicode',\n codePoint: 59\n}\n```\n\nWhen using the `u` flag, unicode chars can also be represented using `\\u` followed by a hex number between curly braces:\n\n```\n\\u{1F680}\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\u{1F680}',\n symbol: '🚀',\n kind: 'unicode',\n codePoint: 128640\n}\n```\n\nWhen using the `u` flag, unicode chars can also be represented using a surrogate pair:\n\n```\n\\ud83d\\ude80\n```\n\nNode:\n\n```js\n{\n type: 'Char',\n value: '\\\\ud83d\\\\ude80',\n symbol: '🚀',\n kind: 'unicode',\n codePoint: 128640,\n isSurrogatePair: true\n}\n```\n\n#### Character class\n\nCharacter classes define a _set_ of characters. A set may include as simple characters, as well as _character ranges_. A class can be _positive_ (any from the characters in the class match), or _negative_ (any _but_ the characters from the class match).\n\n##### Positive character class\n\nA positive character class is defined between `[` and `]` brackets:\n\n```\n[a*]\n```\n\nA node:\n\n```js\n{\n type: 'CharacterClass',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: '*',\n symbol: '*',\n kind: 'simple',\n codePoint: 42\n }\n ]\n}\n```\n\n> NOTE: some meta symbols are treated as normal characters in a character class. E.g. `*` is not a repetition quantifier, but a simple char.\n\n##### Negative character class\n\nA negative character class is defined between `[^` and `]` brackets:\n\n```\n[^ab]\n```\n\nAn AST node is the same, just `negative` property is added:\n\n```js\n{\n type: 'CharacterClass',\n negative: true,\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n ]\n}\n```\n\n##### Character class ranges\n\nAs mentioned, a character class may also contain _ranges_ of symbols:\n\n```\n[a-z]\n```\n\nA node:\n\n```js\n{\n type: 'CharacterClass',\n expressions: [\n {\n type: 'ClassRange',\n from: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n to: {\n type: 'Char',\n value: 'z',\n symbol: 'z',\n kind: 'simple',\n codePoint: 122\n }\n }\n ]\n}\n```\n\n> NOTE: it is a _syntax error_ if `to` value is less than `from` value: `/[z-a]/`.\n\nThe range value can be the same for `from` and `to`, and the special range `-` character is treated as a simple character when it stands in a char position:\n\n```\n// from: 'a', to: 'a'\n[a-a]\n\n// from: '-', to: '-'\n[---]\n\n// simple '-' char:\n[-]\n\n// 3 ranges:\n[a-zA-Z0-9]+\n```\n\n#### Alternative\n\nAn _alternative_ (or _concatenation_) defines a chain of patterns followed one after another:\n\n```\nabc\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n },\n {\n type: 'Char',\n value: 'c',\n symbol: 'c',\n kind: 'simple',\n codePoint: 99\n }\n ]\n}\n```\n\nAnother examples:\n\n```\n// 'a' with a quantifier, followed by 'b'\na?b\n\n// A group followed by a class:\n(ab)[a-z]\n```\n\n#### Disjunction\n\nThe _disjunction_ defines \"OR\" operation for regexp patterns. It's a _binary_ operation, having `left`, and `right` nodes.\n\nMatches `a` or `b`:\n\n```\na|b\n```\n\nA node:\n\n```js\n{\n type: 'Disjunction',\n left: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n right: {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n}\n```\n\n#### Groups\n\nThe groups play two roles: they define _grouping precedence_, and allow to _capture_ needed sub-expressions in case of a capturing group.\n\n##### Capturing group\n\n_\"Capturing\"_ means the matched string can be referred later by a user, including in the pattern itself -- by using [backreferences](#backreferences).\n\nChar `a`, and `b` are grouped, followed by the `c` char:\n\n```\n(ab)c\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Group',\n capturing: true,\n number: 1,\n expression: {\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n ]\n }\n },\n {\n type: 'Char',\n value: 'c',\n symbol: 'c',\n kind: 'simple',\n codePoint: 99\n }\n ]\n}\n```\n\nAs we can see, it also tracks the number of the group.\n\nAnother example:\n\n```\n// A grouped disjunction of a symbol, and a character class:\n(5|[a-z])\n```\n\n##### Named capturing group\n\n> NOTE: _Named capturing groups_ are not yet supported by JavaScript RegExp. It is an ECMAScript [proposal](https://tc39.github.io/proposal-regexp-named-groups/) which is at stage 3 at the moment.\n\nA capturing group can be given a name using the `(?<name>...)` syntax, for any identifier `name`.\n\nFor example, a regular expressions for a date:\n\n```js\n/(?<year>\\d{4})-(?<month>\\d{2})-(?<day>\\d{2})/u\n```\n\nFor the group:\n\n```js\n(?<foo>x)\n```\n\nWe have the following node (the `name` property with value `foo` is added):\n\n```js\n{\n type: 'Group',\n capturing: true,\n name: 'foo',\n number: 1,\n expression: {\n type: 'Char',\n value: 'x',\n symbol: 'x',\n kind: 'simple',\n codePoint: 120\n }\n}\n```\n\n##### Non-capturing group\n\nSometimes we don't need to actually capture the matched string from a group. In this case we can use a _non-capturing_ group:\n\nChar `a`, and `b` are grouped, _but not captured_, followed by the `c` char:\n\n```\n(?:ab)c\n```\n\nThe same node, the `capturing` flag is `false`:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Group',\n capturing: false,\n expression: {\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n ]\n }\n },\n {\n type: 'Char',\n value: 'c',\n symbol: 'c',\n kind: 'simple',\n codePoint: 99\n }\n ]\n}\n```\n\n##### Backreferences\n\nA [capturing group](#capturing-group) can be referenced in the pattern using notation of an escaped group number.\n\nMatches `abab` string:\n\n```\n(ab)\\1\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Group',\n capturing: true,\n number: 1,\n expression: {\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n ]\n }\n },\n {\n type: 'Backreference',\n kind: 'number',\n number: 1,\n reference: 1,\n }\n ]\n}\n```\n\nA [named capturing group](#named-capturing-group) can be accessed using `\\k<name>` pattern, and also using a numbered reference.\n\nMatches `www`:\n\n```js\n(?<foo>w)\\k<foo>\\1\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Group',\n capturing: true,\n name: 'foo',\n number: 1,\n expression: {\n type: 'Char',\n value: 'w',\n symbol: 'w',\n kind: 'simple',\n codePoint: 119\n }\n },\n {\n type: 'Backreference',\n kind: 'name',\n number: 1,\n reference: 'foo'\n },\n {\n type: 'Backreference',\n kind: 'number',\n number: 1,\n reference: 1\n }\n ]\n}\n```\n\n#### Quantifiers\n\nQuantifiers specify _repetition_ of a regular expression (or of its part). Below are the quantifiers which _wrap_ a parsed expression into a `Repetition` node. The quantifier itself can be of different _kinds_, and has `Quantifier` node type.\n\n##### ? zero-or-one\n\nThe `?` quantifier is short for `{0,1}`.\n\n```\na?\n```\n\nNode:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: '?',\n greedy: true\n }\n}\n```\n\n##### * zero-or-more\n\nThe `*` quantifier is short for `{0,}`.\n\n```\na*\n```\n\nNode:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: '*',\n greedy: true\n }\n}\n```\n\n##### + one-or-more\n\nThe `+` quantifier is short for `{1,}`.\n\n```\n// Same as `aa*`, or `a{1,}`\na+\n```\n\nNode:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: '+',\n greedy: true\n }\n}\n```\n\n##### Range-based quantifiers\n\nExplicit _range-based_ quantifiers are parsed as follows:\n\n###### Exact number of matches\n\n```\na{3}\n```\n\nThe type of the quantifier is `Range`, and `from`, and `to` properties have the same value:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: 'Range',\n from: 3,\n to: 3,\n greedy: true\n }\n}\n```\n\n###### Open range\n\nAn open range doesn't have max value (assuming semantic \"more\", or Infinity value):\n\n```\na{3,}\n```\n\nAn AST node for such range doesn't contain `to` property:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: 'Range',\n from: 3,\n greedy: true\n }\n}\n```\n\n###### Closed range\n\nA closed range has explicit max value: (which syntactically can be the same as min value):\n\n```\na{3,5}\n\n// Same as a{3}\na{3,3}\n```\n\nAn AST node for a closed range:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: 'Range',\n from: 3,\n to: 5,\n greedy: true\n }\n}\n```\n\n> NOTE: it is a _syntax error_ if the max value is less than min value: `/a{3,2}/`\n\n##### Non-greedy\n\nIf any quantifier is followed by the `?`, the quantifier becomes _non-greedy_.\n\nExample:\n\n```\na+?\n```\n\nNode:\n\n```js\n{\n type: 'Repetition',\n expression: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n quantifier: {\n type: 'Quantifier',\n kind: '+',\n greedy: false\n }\n}\n```\n\nOther examples:\n\n```\na??\na*?\na{1}?\na{1,}?\na{1,3}?\n```\n\n#### Assertions\n\nAssertions appear as separate AST nodes, however instread of manipulating on the characters themselves, they _assert_ certain conditions of a matching string. Examples: `^` -- beginning of a string (or a line in multiline mode), `$` -- end of a string, etc.\n\n##### ^ begin marker\n\nThe `^` assertion checks whether a scanner is at the beginning of a string (or a line in multiline mode).\n\nIn the example below `^` is not a property of the `a` symbol, but a separate AST node for the assertion. The parsed node is actually an `Alternative` with two nodes:\n\n```\n^a\n```\n\nThe node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Assertion',\n kind: '^'\n },\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n }\n ]\n}\n```\n\nSince assertion is a separate node, it may appear anywhere in the matching string. The following regexp is completely valid, and asserts beginning of the string; it'll match an empty string:\n\n```\n^^^^^\n```\n\n##### $ end marker\n\nThe `$` assertion is similar to `^`, but asserts the end of a string (or a line in a multiline mode):\n\n```\na$\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Assertion',\n kind: '$'\n }\n ]\n}\n```\n\nAnd again, this is a completely valid regexp, and matches an empty string:\n\n```\n^^^^$$$$$\n\n// valid too:\n$^\n```\n\n##### Boundary assertions\n\nThe `\\b` assertion check for _word boundary_, i.e. the position between a word and a space.\n\nMatches `x` in `x y`, but not in `xy`:\n\n```\nx\\b\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'x',\n symbol: 'x',\n kind: 'simple',\n codePoint: 120\n },\n {\n type: 'Assertion',\n kind: '\\\\b'\n }\n ]\n}\n```\n\nThe `\\B` is vice-versa checks for _non-word_ boundary. The following example matches `x` in `xy`, but not in `x y`:\n\n```\nx\\B\n```\n\nA node is the same:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'x',\n symbol: 'x',\n kind: 'simple',\n codePoint: 120\n },\n {\n type: 'Assertion',\n kind: '\\\\B'\n }\n ]\n}\n```\n\n##### Lookahead assertions\n\nThese assertions check whether a pattern is _followed_ (or not followed for the negative assertion) by another pattern.\n\n###### Positive lookahead assertion\n\nMatches `a` only if it's followed by `b`:\n\n```\na(?=b)\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Assertion',\n kind: 'Lookahead',\n assertion: {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n }\n ]\n}\n```\n\n###### Negative lookahead assertion\n\nMatches `a` only if it's _not_ followed by `b`:\n\n```\na(?!b)\n```\n\nA node is similar, just `negative` flag is added:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n },\n {\n type: 'Assertion',\n kind: 'Lookahead',\n negative: true,\n assertion: {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n }\n }\n ]\n}\n```\n\n##### Lookbehind assertions\n\n> NOTE: _Lookbehind assertions_ are not yet supported by JavaScript RegExp. It is an ECMAScript [proposal](https://tc39.github.io/proposal-regexp-lookbehind/) which is at stage 3 at the moment.\n\nThese assertions check whether a pattern is _preceded_ (or not preceded for the negative assertion) by another pattern.\n\n###### Positive lookbehind assertion\n\nMatches `b` only if it's preceded by `a`:\n\n```\n(?<=a)b\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Assertion',\n kind: 'Lookbehind',\n assertion: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n }\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n },\n ]\n}\n```\n\n###### Negative lookbehind assertion\n\nMatches `b` only if it's _not_ preceded by `a`:\n\n```\n(?<!a)b\n```\n\nA node:\n\n```js\n{\n type: 'Alternative',\n expressions: [\n {\n type: 'Assertion',\n kind: 'Lookbehind',\n negative: true,\n assertion: {\n type: 'Char',\n value: 'a',\n symbol: 'a',\n kind: 'simple',\n codePoint: 97\n }\n },\n {\n type: 'Char',\n value: 'b',\n symbol: 'b',\n kind: 'simple',\n codePoint: 98\n },\n ]\n}\n```\n# flush-write-stream\n\nA write stream constructor that supports a flush function that is called before `finish` is emitted\n\n```\nnpm install flush-write-stream\n```\n\n[](http://travis-ci.org/mafintosh/flush-write-stream)\n\n## Usage\n\n``` js\nvar writer = require('flush-write-stream')\n\nvar ws = writer(write, flush)\n\nws.on('finish', function () {\n console.log('finished')\n})\n\nws.write('hello')\nws.write('world')\nws.end()\n\nfunction write (data, enc, cb) {\n // i am your normal ._write method\n console.log('writing', data.toString())\n cb()\n}\n\nfunction flush (cb) {\n // i am called before finish is emitted\n setTimeout(cb, 1000) // wait 1 sec\n}\n```\n\nIf you run the above it will produce the following output\n\n```\nwriting hello\nwriting world\n(nothing happens for 1 sec)\nfinished\n```\n\n## API\n\n#### `var ws = writer([options], write, [flush])`\n\nCreate a new writable stream. Options are forwarded to the stream constructor.\n\n#### `var ws = writer.obj([options], write, [flush])`\n\nSame as the above except `objectMode` is set to `true` per default.\n\n## License\n\nMIT\n# define-property [](https://www.npmjs.com/package/define-property) [](https://npmjs.org/package/define-property) [](https://npmjs.org/package/define-property) [](https://travis-ci.org/jonschlinkert/define-property)\n\n> Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save define-property\n```\n\n## Release history\n\nSee [the CHANGELOG](changelog.md) for updates.\n\n## Usage\n\n**Params**\n\n* `object`: The object on which to define the property.\n* `key`: The name of the property to be defined or modified.\n* `value`: The value or descriptor of the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\n// by default, defined properties are non-enumberable\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**defining setters/getters**\n\nPass the same properties you would if using [Object.defineProperty](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty) or [Reflect.defineProperty](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/defineProperty).\n\n```js\ndefine(obj, 'foo', {\n set: function() {},\n get: function() {}\n});\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 28 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n\n### Author\n\n**Jon Schlinkert**\n\n* Connect with me on [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* Follow me on [github/jonschlinkert](https://github.com/jonschlinkert)\n* Follow me on [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on January 25, 2018._\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\n# cross-spawn\n\n[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Build status][appveyor-image]][appveyor-url] [![Coverage Status][codecov-image]][codecov-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url] [![Greenkeeper badge][greenkeeper-image]][greenkeeper-url]\n\n[npm-url]:https://npmjs.org/package/cross-spawn\n[downloads-image]:http://img.shields.io/npm/dm/cross-spawn.svg\n[npm-image]:http://img.shields.io/npm/v/cross-spawn.svg\n[travis-url]:https://travis-ci.org/moxystudio/node-cross-spawn\n[travis-image]:http://img.shields.io/travis/moxystudio/node-cross-spawn/master.svg\n[appveyor-url]:https://ci.appveyor.com/project/satazor/node-cross-spawn\n[appveyor-image]:https://img.shields.io/appveyor/ci/satazor/node-cross-spawn/master.svg\n[codecov-url]:https://codecov.io/gh/moxystudio/node-cross-spawn\n[codecov-image]:https://img.shields.io/codecov/c/github/moxystudio/node-cross-spawn/master.svg\n[david-dm-url]:https://david-dm.org/moxystudio/node-cross-spawn\n[david-dm-image]:https://img.shields.io/david/moxystudio/node-cross-spawn.svg\n[david-dm-dev-url]:https://david-dm.org/moxystudio/node-cross-spawn?type=dev\n[david-dm-dev-image]:https://img.shields.io/david/dev/moxystudio/node-cross-spawn.svg\n[greenkeeper-image]:https://badges.greenkeeper.io/moxystudio/node-cross-spawn.svg\n[greenkeeper-url]:https://greenkeeper.io/\n\nA cross platform solution to node's spawn and spawnSync.\n\n## Installation\n\n`$ npm install cross-spawn`\n\n## Why\n\nNode has issues when using spawn on Windows:\n\n- It ignores [PATHEXT](https://github.com/joyent/node/issues/2318)\n- It does not support [shebangs](https://en.wikipedia.org/wiki/Shebang_(Unix))\n- Has problems running commands with [spaces](https://github.com/nodejs/node/issues/7367)\n- Has problems running commands with posix relative paths (e.g.: `./my-folder/my-executable`)\n- Has an [issue](https://github.com/moxystudio/node-cross-spawn/issues/82) with command shims (files in `node_modules/.bin/`), where arguments with quotes and parenthesis would result in [invalid syntax error](https://github.com/moxystudio/node-cross-spawn/blob/e77b8f22a416db46b6196767bcd35601d7e11d54/test/index.test.js#L149)\n- No `options.shell` support on node `<v4.8`\n\nAll these issues are handled correctly by `cross-spawn`.\nThere are some known modules, such as [win-spawn](https://github.com/ForbesLindesay/win-spawn), that try to solve this but they are either broken or provide faulty escaping of shell arguments.\n\n## Usage\n\nExactly the same way as node's [`spawn`](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options) or [`spawnSync`](https://nodejs.org/api/child_process.html#child_process_child_process_spawnsync_command_args_options), so it's a drop in replacement.\n\n```js\nconst spawn = require('cross-spawn');\n\n// Spawn NPM asynchronously\nconst child = spawn('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });\n\n// Spawn NPM synchronously\nconst result = spawn.sync('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });\n```\n\n## Caveats\n\n### Using `options.shell` as an alternative to `cross-spawn`\n\nStarting from node `v4.8`, `spawn` has a `shell` option that allows you run commands from within a shell. This new option solves\nthe [PATHEXT](https://github.com/joyent/node/issues/2318) issue but:\n\n- It's not supported in node `<v4.8`\n- You must manually escape the command and arguments which is very error prone, specially when passing user input\n- There are a lot of other unresolved issues from the [Why](#why) section that you must take into account\n\nIf you are using the `shell` option to spawn a command in a cross platform way, consider using `cross-spawn` instead. You have been warned.\n\n### `options.shell` support\n\nWhile `cross-spawn` adds support for `options.shell` in node `<v4.8`, all of its enhancements are disabled.\n\nThis mimics the Node.js behavior. More specifically, the command and its arguments will not be automatically escaped nor shebang support will be offered. This is by design because if you are using `options.shell` you are probably targeting a specific platform anyway and you don't want things to get into your way.\n\n### Shebangs support\n\nWhile `cross-spawn` handles shebangs on Windows, its support is limited. More specifically, it just supports `#!/usr/bin/env <program>` where `<program>` must not contain any arguments. \nIf you would like to have the shebang support improved, feel free to contribute via a pull-request.\n\nRemember to always test your code on Windows!\n\n## Tests\n\n`$ npm test` \n`$ npm test -- --watch` during development\n\n## License\n\nReleased under the [MIT License](http://www.opensource.org/licenses/mit-license.php).\n# is-descriptor [](https://www.npmjs.com/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://travis-ci.org/jonschlinkert/is-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-descriptor\n```\n\n## Usage\n\n```js\nvar isDescriptor = require('is-descriptor');\n\nisDescriptor({value: 'foo'})\n//=> true\nisDescriptor({get: function(){}, set: function(){}})\n//=> true\nisDescriptor({get: 'foo', set: function(){}})\n//=> false\n```\n\nYou may also check for a descriptor by passing an object as the first argument and property name (`string`) as the second argument.\n\n```js\nvar obj = {};\nobj.foo = 'abc';\n\nObject.defineProperty(obj, 'bar', {\n value: 'xyz'\n});\n\nisDescriptor(obj, 'foo');\n//=> true\nisDescriptor(obj, 'bar');\n//=> true\n```\n\n## Examples\n\n### value type\n\n`false` when not an object\n\n```js\nisDescriptor('a');\n//=> false\nisDescriptor(null);\n//=> false\nisDescriptor([]);\n//=> false\n```\n\n### data descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({value: 'foo'});\n//=> true\nisDescriptor({value: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', get: noop});\n//=> false\nisDescriptor({get: noop, value: noop});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({value: 'foo', enumerable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', configurable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', writable: 'foo'});\n//=> false\n```\n\n### accessor descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({get: noop, set: noop});\n//=> true\nisDescriptor({get: noop});\n//=> true\nisDescriptor({set: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({get: noop, set: noop, bar: 'baz'});\n//=> false\nisDescriptor({get: noop, writable: true});\n//=> false\nisDescriptor({get: noop, value: true});\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisDescriptor({get: noop, set: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: noop});\n//=> false\nisDescriptor({get: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: 'baz'});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({get: noop, set: noop, enumerable: 'foo'});\n//=> false\nisDescriptor({set: noop, configurable: 'foo'});\n//=> false\nisDescriptor({get: noop, configurable: 'foo'});\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 24 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\n# is-windows [](https://www.npmjs.com/package/is-windows) [](https://npmjs.org/package/is-windows) [](https://npmjs.org/package/is-windows) [](https://travis-ci.org/jonschlinkert/is-windows)\n\n> Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-windows\n```\n\n## Heads up!\n\nAs of `v0.2.0` this module always returns a function.\n\n## Node.js usage\n\n```js\nvar isWindows = require('is-windows');\n\nconsole.log(isWindows());\n//=> returns true if the platform is windows\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-absolute](https://www.npmjs.com/package/is-absolute): Returns true if a file path is absolute. Does not rely on the path module… [more](https://github.com/jonschlinkert/is-absolute) | [homepage](https://github.com/jonschlinkert/is-absolute \"Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`.\")\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative \"Returns `true` if the path appears to be relative.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [window-size](https://www.npmjs.com/package/window-size): Reliable way to get the height and width of terminal/console, since it's not calculated or… [more](https://github.com/jonschlinkert/window-size) | [homepage](https://github.com/jonschlinkert/window-size \"Reliable way to get the height and width of terminal/console, since it's not calculated or updated the same way on all platforms, environments and node.js versions.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 11 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 4 | [doowb](https://github.com/doowb) |\n| 1 | [SimenB](https://github.com/SimenB) |\n| 1 | [gucong3000](https://github.com/gucong3000) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 14, 2018._\n# inflight\n\nAdd callbacks to requests in flight to avoid async duplication\n\n## USAGE\n\n```javascript\nvar inflight = require('inflight')\n\n// some request that does some stuff\nfunction req(key, callback) {\n // key is any random string. like a url or filename or whatever.\n //\n // will return either a falsey value, indicating that the\n // request for this key is already in flight, or a new callback\n // which when called will call all callbacks passed to inflightk\n // with the same key\n callback = inflight(key, callback)\n\n // If we got a falsey value back, then there's already a req going\n if (!callback) return\n\n // this is where you'd fetch the url or whatever\n // callback is also once()-ified, so it can safely be assigned\n // to multiple events etc. First call wins.\n setTimeout(function() {\n callback(null, key)\n }, 100)\n}\n\n// only assigns a single setTimeout\n// when it dings, all cbs get called\nreq('foo', cb1)\nreq('foo', cb2)\nreq('foo', cb3)\nreq('foo', cb4)\n```\n# lodash.tail v4.1.1\n\nThe [lodash](https://lodash.com/) method `_.tail` exported as a [Node.js](https://nodejs.org/) module.\n\n## Installation\n\nUsing npm:\n```bash\n$ {sudo -H} npm i -g npm\n$ npm i --save lodash.tail\n```\n\nIn Node.js:\n```js\nvar tail = require('lodash.tail');\n```\n\nSee the [documentation](https://lodash.com/docs#tail) or [package source](https://github.com/lodash/lodash/blob/4.1.1-npm-packages/lodash.tail) for more details.\n# get-caller-file\n\n[](https://travis-ci.org/stefanpenner/get-caller-file)\n[](https://ci.appveyor.com/project/embercli/get-caller-file/branch/master)\n# enhanced-resolve\n\nOffers an async require.resolve function. It's highly configurable.\n\n## Features\n\n* plugin system\n* provide a custom filesystem\n* sync and async node.js filesystems included\n\n## Getting Started\n### Install\n```sh\n# npm\nnpm install enhanced-resolve\n# or Yarn\nyarn add enhanced-resolve\n```\n\n### Creating a Resolver\nThe easiest way to create a resolver is to use the `createResolver` function on `ResolveFactory`, along with one of the supplied File System implementations.\n```js\nconst {\n NodeJsInputFileSystem,\n CachedInputFileSystem,\n ResolverFactory\n} = require('enhanced-resolve');\n\n// create a resolver\nconst myResolver = ResolverFactory.createResolver({\n // Typical usage will consume the `NodeJsInputFileSystem` + `CachedInputFileSystem`, which wraps the Node.js `fs` wrapper to add resilience + caching.\n fileSystem: new CachedInputFileSystem(new NodeJsInputFileSystem(), 4000),\n extensions: ['.js', '.json']\n /* any other resolver options here. Options/defaults can be seen below */\n});\n\n// resolve a file with the new resolver\nconst context = {};\nconst resolveContext = {};\nconst lookupStartPath = '/Users/webpack/some/root/dir';\nconst request = './path/to-look-up.js';\nmyResolver.resolve({}, lookupStartPath, request, resolveContext, (err/*Error*/, filepath/*string*/) => {\n // Do something with the path\n});\n```\n\nFor more examples creating different types resolvers (sync/async, context, etc) see `lib/node.js`.\n#### Resolver Options\n| Field | Default | Description |\n| ------------------------ | --------------------------- | ---------------------------------------------------------------------------------- |\n| alias | [] | A list of module alias configurations or an object which maps key to value |\n| aliasFields | [] | A list of alias fields in description files |\n| cacheWithContext | true | If unsafe cache is enabled, includes `request.context` in the cache key |\n| descriptionFiles | [\"package.json\"] | A list of description files to read from |\n| enforceExtension | false | Enforce that a extension from extensions must be used |\n| enforceModuleExtension | false | Enforce that a extension from moduleExtensions must be used |\n| extensions | [\".js\", \".json\", \".node\"] | A list of extensions which should be tried for files |\n| mainFields | [\"main\"] | A list of main fields in description files |\n| mainFiles | [\"index\"] | A list of main files in directories |\n| modules | [\"node_modules\"] | A list of directories to resolve modules from, can be absolute path or folder name |\n| unsafeCache | false | Use this cache object to unsafely cache the successful requests |\n| plugins | [] | A list of additional resolve plugins which should be applied |\n| symlinks | true | Whether to resolve symlinks to their symlinked location |\n| cachePredicate | function() { return true }; | A function which decides whether a request should be cached or not. An object is passed to the function with `path` and `request` properties. |\n| moduleExtensions | [] | A list of module extensions which should be tried for modules |\n| resolveToContext | false | Resolve to a context instead of a file |\n| fileSystem | | The file system which should be used |\n| resolver | undefined | A prepared Resolver to which the plugins are attached |\n\n## Plugins\nSimilar to `webpack`, the core of `enhanced-resolve` functionality is implemented as individual plugins that are executed using [`Tapable`](https://github.com/webpack/tapable). These plugins can extend the functionality of the library, adding other ways for files/contexts to be resolved.\n\nA plugin should be a `class` (or its ES5 equivalent) with an `apply` method. The `apply` method will receive a `resolver` instance, that can be used to hook in to the event system.\n\n### Plugin Boilerplate\n```js\nclass MyResolverPlugin {\n constructor(source, target) {\n this.source = source;\n this.target = target;\n }\n\n apply(resolver) {\n const target = resolver.ensureHook(this.target);\n resolver.getHook(this.source).tapAsync(\"MyResolverPlugin\", (request, resolveContext, callback) => {\n // Any logic you need to create a new `request` can go here\n resolver.doResolve(target, request, null, resolveContext, callback);\n });\n }\n}\n```\n\nPlugins are executed in a pipeline, and register which event they should be executed before/after. In the example above, `source` is the name of the event that starts the pipeline, and `target` is what event this plugin should fire, which is what continues the execution of the pipeline. For an example of how these different plugin events create a chain, see `lib/ResolverFactory.js`, in the `//// pipeline ////` section.\n\n## Tests\n\n``` javascript\nnpm test\n```\n\n[](http://travis-ci.org/webpack/enhanced-resolve)\n\n## Passing options from webpack\nIf you are using `webpack`, and you want to pass custom options to `enhanced-resolve`, the options are passed from the `resolve` key of your webpack configuration e.g.:\n\n```\nresolve: {\n extensions: ['', '.js', '.jsx'],\n modules: ['src', 'node_modules'],\n plugins: [new DirectoryNamedWebpackPlugin()]\n ...\n},\n```\n\n## License\n\nCopyright (c) 2012-2016 Tobias Koppers\n\nMIT (http://www.opensource.org/licenses/mit-license.php)\n# create-hash\n\n[](https://travis-ci.org/crypto-browserify/createHash)\n\nNode style hashes for use in the browser, with native hash functions in node.\n\nAPI is the same as hashes in node:\n```js\nvar createHash = require('create-hash')\nvar hash = createHash('sha224')\nhash.update('synchronous write') // optional encoding parameter\nhash.digest() // synchronously get result with optional encoding parameter\n\nhash.write('write to it as a stream')\nhash.end() // remember it's a stream\nhash.read() // only if you ended it as a stream though\n```\n\nTo get the JavaScript version even in node do `require('create-hash/browser')`\n# define-property [](http://badge.fury.io/js/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i define-property --save\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## Related projects\n\n* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)\n* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n\n# extend() for Node.js <sup>[![Version Badge][npm-version-png]][npm-url]</sup>\n\n`node-extend` is a port of the classic extend() method from jQuery. It behaves as you expect. It is simple, tried and true.\n\nNotes:\n\n* Since Node.js >= 4,\n [`Object.assign`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)\n now offers the same functionality natively (but without the \"deep copy\" option).\n See [ECMAScript 2015 (ES6) in Node.js](https://nodejs.org/en/docs/es6).\n* Some native implementations of `Object.assign` in both Node.js and many\n browsers (since NPM modules are for the browser too) may not be fully\n spec-compliant.\n Check [`object.assign`](https://www.npmjs.com/package/object.assign) module for\n a compliant candidate.\n\n## Installation\n\nThis package is available on [npm][npm-url] as: `extend`\n\n``` sh\nnpm install extend\n```\n\n## Usage\n\n**Syntax:** extend **(** [`deep`], `target`, `object1`, [`objectN`] **)**\n\n*Extend one object with one or more others, returning the modified object.*\n\n**Example:**\n\n``` js\nvar extend = require('extend');\nextend(targetObject, object1, object2);\n```\n\nKeep in mind that the target object will be modified, and will be returned from extend().\n\nIf a boolean true is specified as the first argument, extend performs a deep copy, recursively copying any objects it finds. Otherwise, the copy will share structure with the original object(s).\nUndefined properties are not copied. However, properties inherited from the object's prototype will be copied over.\nWarning: passing `false` as the first argument is not supported.\n\n### Arguments\n\n* `deep` *Boolean* (optional)\nIf set, the merge becomes recursive (i.e. deep copy).\n* `target`\t*Object*\nThe object to extend.\n* `object1`\t*Object*\nThe object that will be merged into the first.\n* `objectN` *Object* (Optional)\nMore objects to merge into the first.\n\n## License\n\n`node-extend` is licensed under the [MIT License][mit-license-url].\n\n## Acknowledgements\n\nAll credit to the jQuery authors for perfecting this amazing utility.\n\nPorted to Node.js by [Stefan Thomas][github-justmoon] with contributions by [Jonathan Buchanan][github-insin] and [Jordan Harband][github-ljharb].\n\n[travis-svg]: https://travis-ci.org/justmoon/node-extend.svg\n[travis-url]: https://travis-ci.org/justmoon/node-extend\n[npm-url]: https://npmjs.org/package/extend\n[mit-license-url]: http://opensource.org/licenses/MIT\n[github-justmoon]: https://github.com/justmoon\n[github-insin]: https://github.com/insin\n[github-ljharb]: https://github.com/ljharb\n[npm-version-png]: http://versionbadg.es/justmoon/node-extend.svg\n[deps-svg]: https://david-dm.org/justmoon/node-extend.svg\n[deps-url]: https://david-dm.org/justmoon/node-extend\n[dev-deps-svg]: https://david-dm.org/justmoon/node-extend/dev-status.svg\n[dev-deps-url]: https://david-dm.org/justmoon/node-extend#info=devDependencies\n# set-blocking\n\n[](https://travis-ci.org/yargs/set-blocking)\n[](https://www.npmjs.com/package/set-blocking)\n[](https://coveralls.io/r/yargs/set-blocking?branch=master)\n[](https://github.com/conventional-changelog/standard-version)\n\nset blocking `stdio` and `stderr` ensuring that terminal output does not truncate.\n\n```js\nconst setBlocking = require('set-blocking')\nsetBlocking(true)\nconsole.log(someLargeStringToOutput)\n```\n\n## Historical Context/Word of Warning\n\nThis was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on\nnewer versions of Node.js (`0.12+`), truncating terminal output.\n\nYou should be mindful of the side-effects caused by using `set-blocking`:\n\n* if your module sets blocking to `true`, it will effect other modules\n consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call\n `setBlocking(true)` once we already know we are about to call `process.exit(code)`.\n* this patch will not apply to subprocesses spawned with `isTTY = true`, this is\n the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).\n\n## License\n\nISC\n# stream-each\n\nIterate all the data in a stream\n\n```\nnpm install stream-each\n```\n\n[](http://travis-ci.org/mafintosh/stream-each)\n\n## Usage\n\n``` js\nvar each = require('stream-each')\n\neach(stream, function (data, next) {\n console.log('data from stream', data)\n // when ready to consume next chunk\n next()\n}, function (err) {\n console.log('no more data')\n})\n```\n\n## API\n\n#### `each(stream, iterator, cb)`\n\nIterate the data in the stream by calling the iterator function with `(data, next)`\nwhere data is a data chunk and next is a callback. Call next when you are ready to\nconsume the next chunk. Optionally you can call next with an error to destroy the stream\n\nWhen the stream ends/errors the callback is called if provided\n\n## License\n\nMIT\n\n## Related\n\n`stream-each` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# is-accessor-descriptor [](https://www.npmjs.com/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-accessor-descriptor\n```\n\n## Usage\n\n```js\nvar isAccessor = require('is-accessor-descriptor');\n\nisAccessor({get: function() {}});\n//=> true\n```\n\nYou may also pass an object and property name to check if the property is an accessor:\n\n```js\nisAccessor(foo, 'bar');\n```\n\n## Examples\n\n`false` when not an object\n\n```js\nisAccessor('a')\nisAccessor(null)\nisAccessor([])\n//=> false\n```\n\n`true` when the object has valid properties\n\nand the properties all have the correct JavaScript types:\n\n```js\nisAccessor({get: noop, set: noop})\nisAccessor({get: noop})\nisAccessor({set: noop})\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisAccessor({get: noop, set: noop, bar: 'baz'})\nisAccessor({get: noop, writable: true})\nisAccessor({get: noop, value: true})\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisAccessor({get: noop, set: 'baz'})\nisAccessor({get: 'foo', set: noop})\nisAccessor({get: 'foo', bar: 'baz'})\nisAccessor({get: 'foo', set: 'baz'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisAccessor({get: noop, set: noop, enumerable: 'foo'})\nisAccessor({set: noop, configurable: 'foo'})\nisAccessor({get: noop, configurable: 'foo'})\n//=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 22 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# ipaddr.js — an IPv6 and IPv4 address manipulation library [](https://travis-ci.org/whitequark/ipaddr.js)\n\nipaddr.js is a small (1.9K minified and gzipped) library for manipulating\nIP addresses in JavaScript environments. It runs on both CommonJS runtimes\n(e.g. [nodejs]) and in a web browser.\n\nipaddr.js allows you to verify and parse string representation of an IP\naddress, match it against a CIDR range or range list, determine if it falls\ninto some reserved ranges (examples include loopback and private ranges),\nand convert between IPv4 and IPv4-mapped IPv6 addresses.\n\n[nodejs]: http://nodejs.org\n\n## Installation\n\n`npm install ipaddr.js`\n\nor\n\n`bower install ipaddr.js`\n\n## API\n\nipaddr.js defines one object in the global scope: `ipaddr`. In CommonJS,\nit is exported from the module:\n\n```js\nvar ipaddr = require('ipaddr.js');\n```\n\nThe API consists of several global methods and two classes: ipaddr.IPv6 and ipaddr.IPv4.\n\n### Global methods\n\nThere are three global methods defined: `ipaddr.isValid`, `ipaddr.parse` and\n`ipaddr.process`. All of them receive a string as a single parameter.\n\nThe `ipaddr.isValid` method returns `true` if the address is a valid IPv4 or\nIPv6 address, and `false` otherwise. It does not throw any exceptions.\n\nThe `ipaddr.parse` method returns an object representing the IP address,\nor throws an `Error` if the passed string is not a valid representation of an\nIP address.\n\nThe `ipaddr.process` method works just like the `ipaddr.parse` one, but it\nautomatically converts IPv4-mapped IPv6 addresses to their IPv4 counterparts\nbefore returning. It is useful when you have a Node.js instance listening\non an IPv6 socket, and the `net.ivp6.bindv6only` sysctl parameter (or its\nequivalent on non-Linux OS) is set to 0. In this case, you can accept IPv4\nconnections on your IPv6-only socket, but the remote address will be mangled.\nUse `ipaddr.process` method to automatically demangle it.\n\n### Object representation\n\nParsing methods return an object which descends from `ipaddr.IPv6` or\n`ipaddr.IPv4`. These objects share some properties, but most of them differ.\n\n#### Shared properties\n\nOne can determine the type of address by calling `addr.kind()`. It will return\neither `\"ipv6\"` or `\"ipv4\"`.\n\nAn address can be converted back to its string representation with `addr.toString()`.\nNote that this method:\n * does not return the original string used to create the object (in fact, there is\n no way of getting that string)\n * returns a compact representation (when it is applicable)\n\nA `match(range, bits)` method can be used to check if the address falls into a\ncertain CIDR range.\nNote that an address can be (obviously) matched only against an address of the same type.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:1234::1\");\nvar range = ipaddr.parse(\"2001:db8::\");\n\naddr.match(range, 32); // => true\n```\n\nAlternatively, `match` can also be called as `match([range, bits])`. In this way,\nit can be used together with the `parseCIDR(string)` method, which parses an IP\naddress together with a CIDR range.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:1234::1\");\n\naddr.match(ipaddr.parseCIDR(\"2001:db8::/32\")); // => true\n```\n\nA `range()` method returns one of predefined names for several special ranges defined\nby IP protocols. The exact names (and their respective CIDR ranges) can be looked up\nin the source: [IPv6 ranges] and [IPv4 ranges]. Some common ones include `\"unicast\"`\n(the default one) and `\"reserved\"`.\n\nYou can match against your own range list by using\n`ipaddr.subnetMatch(address, rangeList, defaultName)` method. It can work with a mix of IPv6 or IPv4 addresses, and accepts a name-to-subnet map as the range list. For example:\n\n```js\nvar rangeList = {\n documentationOnly: [ ipaddr.parse('2001:db8::'), 32 ],\n tunnelProviders: [\n [ ipaddr.parse('2001:470::'), 32 ], // he.net\n [ ipaddr.parse('2001:5c0::'), 32 ] // freenet6\n ]\n};\nipaddr.subnetMatch(ipaddr.parse('2001:470:8:66::1'), rangeList, 'unknown'); // => \"tunnelProviders\"\n```\n\nThe addresses can be converted to their byte representation with `toByteArray()`.\n(Actually, JavaScript mostly does not know about byte buffers. They are emulated with\narrays of numbers, each in range of 0..255.)\n\n```js\nvar bytes = ipaddr.parse('2a00:1450:8007::68').toByteArray(); // ipv6.google.com\nbytes // => [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, <zeroes...>, 0x00, 0x68 ]\n```\n\nThe `ipaddr.IPv4` and `ipaddr.IPv6` objects have some methods defined, too. All of them\nhave the same interface for both protocols, and are similar to global methods.\n\n`ipaddr.IPvX.isValid(string)` can be used to check if the string is a valid address\nfor particular protocol, and `ipaddr.IPvX.parse(string)` is the error-throwing parser.\n\n`ipaddr.IPvX.isValid(string)` uses the same format for parsing as the POSIX `inet_ntoa` function, which accepts unusual formats like `0xc0.168.1.1` or `0x10000000`. The function `ipaddr.IPv4.isValidFourPartDecimal(string)` validates the IPv4 address and also ensures that it is written in four-part decimal format.\n\n[IPv6 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L186\n[IPv4 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L71\n\n#### IPv6 properties\n\nSometimes you will want to convert IPv6 not to a compact string representation (with\nthe `::` substitution); the `toNormalizedString()` method will return an address where\nall zeroes are explicit.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:0db8::0001\");\naddr.toString(); // => \"2001:db8::1\"\naddr.toNormalizedString(); // => \"2001:db8:0:0:0:0:0:1\"\n```\n\nThe `isIPv4MappedAddress()` method will return `true` if this address is an IPv4-mapped\none, and `toIPv4Address()` will return an IPv4 object address.\n\nTo access the underlying binary representation of the address, use `addr.parts`.\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:10::1234:DEAD\");\naddr.parts // => [0x2001, 0xdb8, 0x10, 0, 0, 0, 0x1234, 0xdead]\n```\n\nA IPv6 zone index can be accessed via `addr.zoneId`:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8::%eth0\");\naddr.zoneId // => 'eth0'\n```\n\n#### IPv4 properties\n\n`toIPv4MappedAddress()` will return a corresponding IPv4-mapped IPv6 address.\n\nTo access the underlying representation of the address, use `addr.octets`.\n\n```js\nvar addr = ipaddr.parse(\"192.168.1.1\");\naddr.octets // => [192, 168, 1, 1]\n```\n\n`prefixLengthFromSubnetMask()` will return a CIDR prefix length for a valid IPv4 netmask or\nfalse if the netmask is not valid.\n\n```js\nipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask() == 28\nipaddr.IPv4.parse('255.192.164.0').prefixLengthFromSubnetMask() == null\n```\n\n`subnetMaskFromPrefixLength()` will return an IPv4 netmask for a valid CIDR prefix length.\n\n```js\nipaddr.IPv4.subnetMaskFromPrefixLength(24) == \"255.255.255.0\"\nipaddr.IPv4.subnetMaskFromPrefixLength(29) == \"255.255.255.248\"\n```\n\n`broadcastAddressFromCIDR()` will return the broadcast address for a given IPv4 interface and netmask in CIDR notation.\n```js\nipaddr.IPv4.broadcastAddressFromCIDR(\"172.0.0.1/24\") == \"172.0.0.255\"\n```\n`networkAddressFromCIDR()` will return the network address for a given IPv4 interface and netmask in CIDR notation.\n```js\nipaddr.IPv4.networkAddressFromCIDR(\"172.0.0.1/24\") == \"172.0.0.0\"\n```\n\n#### Conversion\n\nIPv4 and IPv6 can be converted bidirectionally to and from network byte order (MSB) byte arrays.\n\nThe `fromByteArray()` method will take an array and create an appropriate IPv4 or IPv6 object\nif the input satisfies the requirements. For IPv4 it has to be an array of four 8-bit values,\nwhile for IPv6 it has to be an array of sixteen 8-bit values.\n\nFor example:\n```js\nvar addr = ipaddr.fromByteArray([0x7f, 0, 0, 1]);\naddr.toString(); // => \"127.0.0.1\"\n```\n\nor\n\n```js\nvar addr = ipaddr.fromByteArray([0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])\naddr.toString(); // => \"2001:db8::1\"\n```\n\nBoth objects also offer a `toByteArray()` method, which returns an array in network byte order (MSB).\n\nFor example:\n```js\nvar addr = ipaddr.parse(\"127.0.0.1\");\naddr.toByteArray(); // => [0x7f, 0, 0, 1]\n```\n\nor\n\n```js\nvar addr = ipaddr.parse(\"2001:db8::1\");\naddr.toByteArray(); // => [0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]\n```\n# Punycode.js [](https://travis-ci.org/bestiejs/punycode.js) [](https://codecov.io/gh/bestiejs/punycode.js) [](https://gemnasium.com/bestiejs/punycode.js)\n\nPunycode.js is a robust Punycode converter that fully complies to [RFC 3492](https://tools.ietf.org/html/rfc3492) and [RFC 5891](https://tools.ietf.org/html/rfc5891).\n\nThis JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm:\n\n* [The C example code from RFC 3492](https://tools.ietf.org/html/rfc3492#appendix-C)\n* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c)\n* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c)\n* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287)\n* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072))\n\nThis project was [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with Node.js from [v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc) until [v7](https://github.com/nodejs/node/pull/7941) (soft-deprecated).\n\nThe current version supports recent versions of Node.js only. It provides a CommonJS module and an ES6 module. For the old version that offers the same functionality with broader support, including Rhino, Ringo, Narwhal, and web browsers, see [v1.4.1](https://github.com/bestiejs/punycode.js/releases/tag/v1.4.1).\n\n## Installation\n\nVia [npm](https://www.npmjs.com/):\n\n```bash\nnpm install punycode --save\n```\n\nIn [Node.js](https://nodejs.org/):\n\n```js\nconst punycode = require('punycode');\n```\n\n## API\n\n### `punycode.decode(string)`\n\nConverts a Punycode string of ASCII symbols to a string of Unicode symbols.\n\n```js\n// decode domain name parts\npunycode.decode('maana-pta'); // 'mañana'\npunycode.decode('--dqo34k'); // '☃-⌘'\n```\n\n### `punycode.encode(string)`\n\nConverts a string of Unicode symbols to a Punycode string of ASCII symbols.\n\n```js\n// encode domain name parts\npunycode.encode('mañana'); // 'maana-pta'\npunycode.encode('☃-⌘'); // '--dqo34k'\n```\n\n### `punycode.toUnicode(input)`\n\nConverts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode.\n\n```js\n// decode domain names\npunycode.toUnicode('xn--maana-pta.com');\n// → 'mañana.com'\npunycode.toUnicode('xn----dqo34k.com');\n// → '☃-⌘.com'\n\n// decode email addresses\npunycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq');\n// → 'джумла@джpумлатест.bрфa'\n```\n\n### `punycode.toASCII(input)`\n\nConverts a lowercased Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that’s already in ASCII.\n\n```js\n// encode domain names\npunycode.toASCII('mañana.com');\n// → 'xn--maana-pta.com'\npunycode.toASCII('☃-⌘.com');\n// → 'xn----dqo34k.com'\n\n// encode email addresses\npunycode.toASCII('джумла@джpумлатест.bрфa');\n// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'\n```\n\n### `punycode.ucs2`\n\n#### `punycode.ucs2.decode(string)`\n\nCreates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16.\n\n```js\npunycode.ucs2.decode('abc');\n// → [0x61, 0x62, 0x63]\n// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE:\npunycode.ucs2.decode('\\uD834\\uDF06');\n// → [0x1D306]\n```\n\n#### `punycode.ucs2.encode(codePoints)`\n\nCreates a string based on an array of numeric code point values.\n\n```js\npunycode.ucs2.encode([0x61, 0x62, 0x63]);\n// → 'abc'\npunycode.ucs2.encode([0x1D306]);\n// → '\\uD834\\uDF06'\n```\n\n### `punycode.version`\n\nA string representing the current Punycode.js version number.\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\nPunycode.js is available under the [MIT](https://mths.be/mit) license.\n# Source Map Support\n[](https://travis-ci.org/evanw/node-source-map-support)\n\nThis module provides source map support for stack traces in node via the [V8 stack trace API](https://github.com/v8/v8/wiki/Stack-Trace-API). It uses the [source-map](https://github.com/mozilla/source-map) module to replace the paths and line numbers of source-mapped files with their original paths and line numbers. The output mimics node's stack trace format with the goal of making every compile-to-JS language more of a first-class citizen. Source maps are completely general (not specific to any one language) so you can use source maps with multiple compile-to-JS languages in the same node process.\n\n## Installation and Usage\n\n#### Node support\n\n```\n$ npm install source-map-support\n```\n\nSource maps can be generated using libraries such as [source-map-index-generator](https://github.com/twolfson/source-map-index-generator). Once you have a valid source map, place a source mapping comment somewhere in the file (usually done automatically or with an option by your transpiler):\n\n```\n//# sourceMappingURL=path/to/source.map\n```\n\nIf multiple sourceMappingURL comments exist in one file, the last sourceMappingURL comment will be\nrespected (e.g. if a file mentions the comment in code, or went through multiple transpilers).\nThe path should either be absolute or relative to the compiled file.\n\nFrom here you have two options.\n\n##### CLI Usage\n\n```bash\nnode -r source-map-support/register compiled.js\n```\n\n##### Programmatic Usage\n\nPut the following line at the top of the compiled file.\n\n```js\nrequire('source-map-support').install();\n```\n\nIt is also possible to install the source map support directly by\nrequiring the `register` module which can be handy with ES6:\n\n```js\nimport 'source-map-support/register'\n\n// Instead of:\nimport sourceMapSupport from 'source-map-support'\nsourceMapSupport.install()\n```\nNote: if you're using babel-register, it includes source-map-support already.\n\nIt is also very useful with Mocha:\n\n```\n$ mocha --require source-map-support/register tests/\n```\n\n#### Browser support\n\nThis library also works in Chrome. While the DevTools console already supports source maps, the V8 engine doesn't and `Error.prototype.stack` will be incorrect without this library. Everything will just work if you deploy your source files using [browserify](http://browserify.org/). Just make sure to pass the `--debug` flag to the browserify command so your source maps are included in the bundled code.\n\nThis library also works if you use another build process or just include the source files directly. In this case, include the file `browser-source-map-support.js` in your page and call `sourceMapSupport.install()`. It contains the whole library already bundled for the browser using browserify.\n\n```html\n<script src=\"browser-source-map-support.js\"></script>\n<script>sourceMapSupport.install();</script>\n```\n\nThis library also works if you use AMD (Asynchronous Module Definition), which is used in tools like [RequireJS](http://requirejs.org/). Just list `browser-source-map-support` as a dependency:\n\n```html\n<script>\n define(['browser-source-map-support'], function(sourceMapSupport) {\n sourceMapSupport.install();\n });\n</script>\n```\n\n## Options\n\nThis module installs two things: a change to the `stack` property on `Error` objects and a handler for uncaught exceptions that mimics node's default exception handler (the handler can be seen in the demos below). You may want to disable the handler if you have your own uncaught exception handler. This can be done by passing an argument to the installer:\n\n```js\nrequire('source-map-support').install({\n handleUncaughtExceptions: false\n});\n```\n\nThis module loads source maps from the filesystem by default. You can provide alternate loading behavior through a callback as shown below. For example, [Meteor](https://github.com/meteor) keeps all source maps cached in memory to avoid disk access.\n\n```js\nrequire('source-map-support').install({\n retrieveSourceMap: function(source) {\n if (source === 'compiled.js') {\n return {\n url: 'original.js',\n map: fs.readFileSync('compiled.js.map', 'utf8')\n };\n }\n return null;\n }\n});\n```\n\nThe module will by default assume a browser environment if XMLHttpRequest and window are defined. If either of these do not exist it will instead assume a node environment.\nIn some rare cases, e.g. when running a browser emulation and where both variables are also set, you can explictly specify the environment to be either 'browser' or 'node'.\n\n```js\nrequire('source-map-support').install({\n environment: 'node'\n});\n```\n\nTo support files with inline source maps, the `hookRequire` options can be specified, which will monitor all source files for inline source maps.\n\n```js\nrequire('source-map-support').install({\n hookRequire: true\n});\n```\n\nThis monkey patches the `require` module loading chain, so is not enabled by default and is not recommended for any sort of production usage.\n\n## Demos\n\n#### Basic Demo\n\noriginal.js:\n\n```js\nthrow new Error('test'); // This is the original code\n```\n\ncompiled.js:\n\n```js\nrequire('source-map-support').install();\n\nthrow new Error('test'); // This is the compiled code\n// The next line defines the sourceMapping.\n//# sourceMappingURL=compiled.js.map\n```\n\ncompiled.js.map:\n\n```json\n{\n \"version\": 3,\n \"file\": \"compiled.js\",\n \"sources\": [\"original.js\"],\n \"names\": [],\n \"mappings\": \";;AAAA,MAAM,IAAI\"\n}\n```\n\nRun compiled.js using node (notice how the stack trace uses original.js instead of compiled.js):\n\n```\n$ node compiled.js\n\noriginal.js:1\nthrow new Error('test'); // This is the original code\n ^\nError: test\n at Object.<anonymous> (original.js:1:7)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n at node.js:901:3\n```\n\n#### TypeScript Demo\n\ndemo.ts:\n\n```typescript\ndeclare function require(name: string);\nrequire('source-map-support').install();\nclass Foo {\n constructor() { this.bar(); }\n bar() { throw new Error('this is a demo'); }\n}\nnew Foo();\n```\n\nCompile and run the file using the TypeScript compiler from the terminal:\n\n```\n$ npm install source-map-support typescript\n$ node_modules/typescript/bin/tsc -sourcemap demo.ts\n$ node demo.js\n\ndemo.ts:5\n bar() { throw new Error('this is a demo'); }\n ^\nError: this is a demo\n at Foo.bar (demo.ts:5:17)\n at new Foo (demo.ts:4:24)\n at Object.<anonymous> (demo.ts:7:1)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n at node.js:901:3\n```\n\nThere is also the option to use `-r source-map-support/register` with typescript, without the need add the `require('source-map-support').install()` in the code base:\n\n```\n$ npm install source-map-support typescript\n$ node_modules/typescript/bin/tsc -sourcemap demo.ts\n$ node -r source-map-support/register demo.js\n\ndemo.ts:5\n bar() { throw new Error('this is a demo'); }\n ^\nError: this is a demo\n at Foo.bar (demo.ts:5:17)\n at new Foo (demo.ts:4:24)\n at Object.<anonymous> (demo.ts:7:1)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n at node.js:901:3\n```\n\n#### CoffeeScript Demo\n\ndemo.coffee:\n\n```coffee\nrequire('source-map-support').install()\nfoo = ->\n bar = -> throw new Error 'this is a demo'\n bar()\nfoo()\n```\n\nCompile and run the file using the CoffeeScript compiler from the terminal:\n\n```sh\n$ npm install source-map-support coffeescript\n$ node_modules/.bin/coffee --map --compile demo.coffee\n$ node demo.js\n\ndemo.coffee:3\n bar = -> throw new Error 'this is a demo'\n ^\nError: this is a demo\n at bar (demo.coffee:3:22)\n at foo (demo.coffee:4:3)\n at Object.<anonymous> (demo.coffee:5:1)\n at Object.<anonymous> (demo.coffee:1:1)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n```\n\n## Tests\n\nThis repo contains both automated tests for node and manual tests for the browser. The automated tests can be run using mocha (type `mocha` in the root directory). To run the manual tests:\n\n* Build the tests using `build.js`\n* Launch the HTTP server (`npm run serve-tests`) and visit\n * http://127.0.0.1:1336/amd-test\n * http://127.0.0.1:1336/browser-test\n * http://127.0.0.1:1336/browserify-test - **Currently not working** due to a bug with browserify (see [pull request #66](https://github.com/evanw/node-source-map-support/pull/66) for details).\n* For `header-test`, run `server.js` inside that directory and visit http://127.0.0.1:1337/\n\n## License\n\nThis code is available under the [MIT license](http://opensource.org/licenses/MIT).\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Install\n\n```bash\nnpm install --save semver\n````\n\n## Usage\n\nAs a node module:\n\n```js\nconst semver = require('semver')\n\nsemver.valid('1.2.3') // '1.2.3'\nsemver.valid('a.b.c') // null\nsemver.clean(' =v1.2.3 ') // '1.2.3'\nsemver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\nsemver.gt('1.2.3', '9.8.7') // false\nsemver.lt('1.2.3', '9.8.7') // true\nsemver.valid(semver.coerce('v2')) // '2.0.0'\nsemver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'\n```\n\nAs a command-line utility:\n\n```\n$ semver -h\n\nA JavaScript implementation of the http://semver.org/ specification\nCopyright Isaac Z. Schlueter\n\nUsage: semver [options] <version> [<version> [...]]\nPrints valid versions sorted by SemVer precedence\n\nOptions:\n-r --range <range>\n Print versions that match the specified range.\n\n-i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n--preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n-l --loose\n Interpret versions and ranges loosely\n\n-p --include-prerelease\n Always include prerelease versions in range matching\n\n-c --coerce\n Coerce a string into SemVer if possible\n (does not imply --loose)\n\nProgram exits successfully if any valid version satisfies\nall supplied ranges, and prints all satisfying versions.\n\nIf no satisfying versions are found, then exits failure.\n\nVersions are printed in ascending order, so supplying\nmultiple versions to the utility will just sort them.\n```\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<http://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\nsemver.inc('1.2.3', 'prerelease', 'beta')\n// '1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```bash\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```bash\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any version satisfies)\n* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero digit in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0`\n* `^0.2.3` := `>=0.2.3 <0.3.0`\n* `^0.0.3` := `>=0.0.3 <0.0.4`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0`\n* `^0.0.x` := `>=0.0.0 <0.1.0`\n* `^0.0` := `>=0.0.0 <0.1.0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0`\n* `^0.x` := `>=0.0.0 <1.0.0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `options` object argument. All\noptions in this object are `false` by default. The options supported\nare:\n\n- `loose` Be more forgiving about not-quite-valid semver strings.\n (Any resulting output will always be 100% strict compliant, of\n course.) For backwards compatibility reasons, if the `options`\n argument is a boolean value instead of an object, it is interpreted\n to be the `loose` param.\n- `includePrerelease` Set to suppress the [default\n behavior](https://github.com/npm/node-semver#prerelease-tags) of\n excluding prerelease tagged versions from ranges unless they are\n explicitly opted into.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n* `intersects(r1, r2, loose)`: Return true if the two supplied ranges\n or comparators intersect.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Comparators\n\n* `intersects(comparator)`: Return true if the comparators intersect\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n* `intersects(range)`: Return true if any of the ranges comparators intersect\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n\n### Coercion\n\n* `coerce(version)`: Coerces a string to semver if possible\n\nThis aims to provide a very forgiving translation of a non-semver\nstring to semver. It looks for the first digit in a string, and\nconsumes all remaining characters which satisfy at least a partial semver\n(e.g., `1`, `1.2`, `1.2.3`) up to the max permitted length (256 characters).\nLonger versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).\nAll surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes `3.4.0`).\nOnly text which lacks digits will fail coercion (`version one` is not valid).\nThe maximum length for any semver component considered for coercion is 16 characters;\nlonger components will be ignored (`10000000000000000.4.7.4` becomes `4.7.4`).\nThe maximum value for any semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`;\nhigher value components are invalid (`9999999999999999.4.7.4` is likely invalid).\n# string_decoder\n\n***Node-core v8.9.4 string_decoder for userland***\n\n[](https://nodei.co/npm/string_decoder/)\n[](https://nodei.co/npm/string_decoder/)\n\n```bash\nnpm install --save string_decoder\n```\n\n***Node-core string_decoder for userland***\n\nThis package is a mirror of the string_decoder implementation in Node-core.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).\n\nAs of version 1.0.0 **string_decoder** uses semantic versioning.\n\n## Previous versions\n\nPrevious version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.\n\n## Update\n\nThe *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.\n\n## Streams Working Group\n\n`string_decoder` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\nSee [readable-stream](https://github.com/nodejs/readable-stream) for\nmore details.\n# etag\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nCreate simple HTTP ETags\n\nThis module generates HTTP ETags (as defined in RFC 7232) for use in\nHTTP responses.\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install etag\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar etag = require('etag')\n```\n\n### etag(entity, [options])\n\nGenerate a strong ETag for the given entity. This should be the complete\nbody of the entity. Strings, `Buffer`s, and `fs.Stats` are accepted. By\ndefault, a strong ETag is generated except for `fs.Stats`, which will\ngenerate a weak ETag (this can be overwritten by `options.weak`).\n\n<!-- eslint-disable no-undef -->\n\n```js\nres.setHeader('ETag', etag(body))\n```\n\n#### Options\n\n`etag` accepts these properties in the options object.\n\n##### weak\n\nSpecifies if the generated ETag will include the weak validator mark (that\nis, the leading `W/`). The actual entity tag is the same. The default value\nis `false`, unless the `entity` is `fs.Stats`, in which case it is `true`.\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## Benchmark\n\n```bash\n$ npm run-script bench\n\n> etag@1.8.1 bench nodejs-etag\n> node benchmark/index.js\n\n http_parser@2.7.0\n node@6.11.1\n v8@5.1.281.103\n uv@1.11.0\n zlib@1.2.11\n ares@1.10.1-DEV\n icu@58.2\n modules@48\n openssl@1.0.2k\n\n> node benchmark/body0-100b.js\n\n 100B body\n\n 4 tests completed.\n\n buffer - strong x 258,647 ops/sec ±1.07% (180 runs sampled)\n buffer - weak x 263,812 ops/sec ±0.61% (184 runs sampled)\n string - strong x 259,955 ops/sec ±1.19% (185 runs sampled)\n string - weak x 264,356 ops/sec ±1.09% (184 runs sampled)\n\n> node benchmark/body1-1kb.js\n\n 1KB body\n\n 4 tests completed.\n\n buffer - strong x 189,018 ops/sec ±1.12% (182 runs sampled)\n buffer - weak x 190,586 ops/sec ±0.81% (186 runs sampled)\n string - strong x 144,272 ops/sec ±0.96% (188 runs sampled)\n string - weak x 145,380 ops/sec ±1.43% (187 runs sampled)\n\n> node benchmark/body2-5kb.js\n\n 5KB body\n\n 4 tests completed.\n\n buffer - strong x 92,435 ops/sec ±0.42% (188 runs sampled)\n buffer - weak x 92,373 ops/sec ±0.58% (189 runs sampled)\n string - strong x 48,850 ops/sec ±0.56% (186 runs sampled)\n string - weak x 49,380 ops/sec ±0.56% (190 runs sampled)\n\n> node benchmark/body3-10kb.js\n\n 10KB body\n\n 4 tests completed.\n\n buffer - strong x 55,989 ops/sec ±0.93% (188 runs sampled)\n buffer - weak x 56,148 ops/sec ±0.55% (190 runs sampled)\n string - strong x 27,345 ops/sec ±0.43% (188 runs sampled)\n string - weak x 27,496 ops/sec ±0.45% (190 runs sampled)\n\n> node benchmark/body4-100kb.js\n\n 100KB body\n\n 4 tests completed.\n\n buffer - strong x 7,083 ops/sec ±0.22% (190 runs sampled)\n buffer - weak x 7,115 ops/sec ±0.26% (191 runs sampled)\n string - strong x 3,068 ops/sec ±0.34% (190 runs sampled)\n string - weak x 3,096 ops/sec ±0.35% (190 runs sampled)\n\n> node benchmark/stats.js\n\n stat\n\n 4 tests completed.\n\n real - strong x 871,642 ops/sec ±0.34% (189 runs sampled)\n real - weak x 867,613 ops/sec ±0.39% (190 runs sampled)\n fake - strong x 401,051 ops/sec ±0.40% (189 runs sampled)\n fake - weak x 400,100 ops/sec ±0.47% (188 runs sampled)\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/etag.svg\n[npm-url]: https://npmjs.org/package/etag\n[node-version-image]: https://img.shields.io/node/v/etag.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/etag/master.svg\n[travis-url]: https://travis-ci.org/jshttp/etag\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/etag/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/etag?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/etag.svg\n[downloads-url]: https://npmjs.org/package/etag\n# unicode-property-aliases-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-property-aliases-ecmascript)\n\n_unicode-property-aliases-ecmascript_ offers Unicode property alias mappings in an easy-to-consume JavaScript format. It only contains the Unicode property names that are supported in [ECMAScript RegExp property escapes](https://github.com/tc39/proposal-regexp-unicode-property-escapes).\n\nIt’s based on [the `PropertyAliases.txt` data for Unicode v12.0.0](http://unicode.org/Public/12.0.0/ucd/PropertyAliases.txt).\n\n## Installation\n\nTo use _unicode-property-aliases-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\n$ npm install unicode-property-aliases-ecmascript\n```\n\nThen, `require` it:\n\n```js\nconst propertyAliases = require('unicode-property-aliases-ecmascript');\n```\n\n## Usage\n\nThis module exports a `Map` object. The most common usage is to convert a property alias to its canonical form:\n\n```js\npropertyAliases.get('scx')\n// → 'Script_Extensions'\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_unicode-property-aliases-ecmascript_ is available under the [MIT](https://mths.be/mit) license.\n# array-unique [](https://www.npmjs.com/package/array-unique) [](https://npmjs.org/package/array-unique) [](https://travis-ci.org/jonschlinkert/array-unique)\n\nRemove duplicate values from an array. Fastest ES5 implementation.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save array-unique\n```\n\n## Usage\n\n```js\nvar unique = require('array-unique');\n\nvar arr = ['a', 'b', 'c', 'c'];\nconsole.log(unique(arr)) //=> ['a', 'b', 'c']\nconsole.log(arr) //=> ['a', 'b', 'c']\n\n/* The above modifies the input array. To prevent that at a slight performance cost: */\nvar unique = require(\"array-unique\").immutable;\n\nvar arr = ['a', 'b', 'c', 'c'];\nconsole.log(unique(arr)) //=> ['a', 'b', 'c']\nconsole.log(arr) //=> ['a', 'b', 'c', 'c']\n```\n\n## About\n\n### Related projects\n\n* [arr-diff](https://www.npmjs.com/package/arr-diff): Returns an array with only the unique values from the first array, by excluding all… [more](https://github.com/jonschlinkert/arr-diff) | [homepage](https://github.com/jonschlinkert/arr-diff \"Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.\")\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten \"Recursively flatten an array or arrays. This is the fastest implementation of array flatten.\")\n* [arr-map](https://www.npmjs.com/package/arr-map): Faster, node.js focused alternative to JavaScript's native array map. | [homepage](https://github.com/jonschlinkert/arr-map \"Faster, node.js focused alternative to JavaScript's native array map.\")\n* [arr-pluck](https://www.npmjs.com/package/arr-pluck): Retrieves the value of a specified property from all elements in the collection. | [homepage](https://github.com/jonschlinkert/arr-pluck \"Retrieves the value of a specified property from all elements in the collection.\")\n* [arr-reduce](https://www.npmjs.com/package/arr-reduce): Fast array reduce that also loops over sparse elements. | [homepage](https://github.com/jonschlinkert/arr-reduce \"Fast array reduce that also loops over sparse elements.\")\n* [arr-union](https://www.npmjs.com/package/arr-union): Combines a list of arrays, returning a single array with unique values, using strict equality… [more](https://github.com/jonschlinkert/arr-union) | [homepage](https://github.com/jonschlinkert/arr-union \"Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/array-unique/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.28, on July 31, 2016._\n# wrappy\n\nCallback wrapping utility\n\n## USAGE\n\n```javascript\nvar wrappy = require(\"wrappy\")\n\n// var wrapper = wrappy(wrapperFunction)\n\n// make sure a cb is called only once\n// See also: http://npm.im/once for this specific use case\nvar once = wrappy(function (cb) {\n var called = false\n return function () {\n if (called) return\n called = true\n return cb.apply(this, arguments)\n }\n})\n\nfunction printBoo () {\n console.log('boo')\n}\n// has some rando property\nprintBoo.iAmBooPrinter = true\n\nvar onlyPrintOnce = once(printBoo)\n\nonlyPrintOnce() // prints 'boo'\nonlyPrintOnce() // does nothing\n\n// random property is retained!\nassert.equal(onlyPrintOnce.iAmBooPrinter, true)\n```\n# is-descriptor [](https://www.npmjs.com/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://travis-ci.org/jonschlinkert/is-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-descriptor\n```\n\n## Usage\n\n```js\nvar isDescriptor = require('is-descriptor');\n\nisDescriptor({value: 'foo'})\n//=> true\nisDescriptor({get: function(){}, set: function(){}})\n//=> true\nisDescriptor({get: 'foo', set: function(){}})\n//=> false\n```\n\nYou may also check for a descriptor by passing an object as the first argument and property name (`string`) as the second argument.\n\n```js\nvar obj = {};\nobj.foo = 'abc';\n\nObject.defineProperty(obj, 'bar', {\n value: 'xyz'\n});\n\nisDescriptor(obj, 'foo');\n//=> true\nisDescriptor(obj, 'bar');\n//=> true\n```\n\n## Examples\n\n### value type\n\n`false` when not an object\n\n```js\nisDescriptor('a');\n//=> false\nisDescriptor(null);\n//=> false\nisDescriptor([]);\n//=> false\n```\n\n### data descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({value: 'foo'});\n//=> true\nisDescriptor({value: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', get: noop});\n//=> false\nisDescriptor({get: noop, value: noop});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({value: 'foo', enumerable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', configurable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', writable: 'foo'});\n//=> false\n```\n\n### accessor descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({get: noop, set: noop});\n//=> true\nisDescriptor({get: noop});\n//=> true\nisDescriptor({set: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({get: noop, set: noop, bar: 'baz'});\n//=> false\nisDescriptor({get: noop, writable: true});\n//=> false\nisDescriptor({get: noop, value: true});\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisDescriptor({get: noop, set: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: noop});\n//=> false\nisDescriptor({get: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: 'baz'});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({get: noop, set: noop, enumerable: 'foo'});\n//=> false\nisDescriptor({set: noop, configurable: 'foo'});\n//=> false\nisDescriptor({get: noop, configurable: 'foo'});\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 24 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\nutil-deprecate\n==============\n### The Node.js `util.deprecate()` function with browser support\n\nIn Node.js, this module simply re-exports the `util.deprecate()` function.\n\nIn the web browser (i.e. via browserify), a browser-specific implementation\nof the `util.deprecate()` function is used.\n\n## API\n\nA `deprecate()` function is the only thing exposed by this module.\n\n``` javascript\n// setup:\nexports.foo = deprecate(foo, 'foo() is deprecated, use bar() instead');\n\n// users see:\nfoo();\n// foo() is deprecated, use bar() instead\nfoo();\nfoo();\n```\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>\n\nPermission is hereby granted, free of charge, to any person\nobtaining a copy of this software and associated documentation\nfiles (the \"Software\"), to deal in the Software without\nrestriction, including without limitation the rights to use,\ncopy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the\nSoftware is furnished to do so, subject to the following\nconditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES\nOF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\nNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT\nHOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,\nWHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\nFROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR\nOTHER DEALINGS IN THE SOFTWARE.\n# Overview\n\nAdds support for the `timers` module to browserify.\n\n## Wait, isn't it already supported in the browser?\n\nThe public methods of the `timers` module are:\n\n* `setTimeout(callback, delay, [arg], [...])`\n* `clearTimeout(timeoutId)`\n* `setInterval(callback, delay, [arg], [...])`\n* `clearInterval(intervalId)`\n\nand indeed, browsers support these already.\n\n## So, why does this exist?\n\nThe `timers` module also includes some private methods used in other built-in\nNode.js modules:\n\n* `enroll(item, delay)`\n* `unenroll(item)`\n* `active(item)`\n\nThese are used to efficiently support a large quantity of timers with the same\ntimeouts by creating only a few timers under the covers.\n\nNode.js also offers the `immediate` APIs, which aren't yet available cross-browser, so we polyfill those:\n\n* `setImmediate(callback, [arg], [...])`\n* `clearImmediate(immediateId)`\n\n## I need lots of timers and want to use linked list timers as Node.js does.\n\nLinked lists are efficient when you have thousands (millions?) of timers with the same delay.\nTake a look at [timers-browserify-full](https://www.npmjs.com/package/timers-browserify-full) in this case.\n\n# License\n\n[MIT](http://jryans.mit-license.org/)\nyargs\n========\n\nYargs be a node.js library fer hearties tryin' ter parse optstrings.\n\nWith yargs, ye be havin' a map that leads straight to yer treasure! Treasure of course, being a simple option hash.\n\n[![Build Status][travis-image]][travis-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n[![NPM version][npm-image]][npm-url]\n[![Windows Tests][windows-image]][windows-url]\n[![js-standard-style][standard-image]][standard-url]\n[![Conventional Commits][conventional-commits-image]][conventional-commits-url]\n[![Gitter][gitter-image]][gitter-url]\n\n> Yargs is the official successor to optimist. Please feel free to submit issues and pull requests. If you'd like to contribute and don't know where to start, have a look at [the issue list](https://github.com/yargs/yargs/issues) :)\n\nexamples\n========\n\nWith yargs, the options be just a hash!\n-------------------------------------------------------------------\n\nplunder.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs').argv;\n\nif (argv.ships > 3 && argv.distance < 53.5) {\n console.log('Plunder more riffiwobbles!');\n} else {\n console.log('Retreat from the xupptumblers!');\n}\n````\n\n***\n\n $ ./plunder.js --ships=4 --distance=22\n Plunder more riffiwobbles!\n\n $ ./plunder.js --ships 12 --distance 98.7\n Retreat from the xupptumblers!\n\n\n\nBut don't walk the plank just yet! There be more! You can do short options:\n-------------------------------------------------\n\nshort.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs').argv;\nconsole.log('(%d,%d)', argv.x, argv.y);\n````\n\n***\n\n $ ./short.js -x 10 -y 21\n (10,21)\n\nAnd booleans, both long, short, and even grouped:\n----------------------------------\n\nbool.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs').argv;\n\nif (argv.s) {\n process.stdout.write(argv.fr ? 'Le perroquet dit: ' : 'The parrot says: ');\n}\nconsole.log(\n (argv.fr ? 'couac' : 'squawk') + (argv.p ? '!' : '')\n);\n````\n\n***\n\n $ ./bool.js -s\n The parrot says: squawk\n\n $ ./bool.js -sp\n The parrot says: squawk!\n\n $ ./bool.js -sp --fr\n Le perroquet dit: couac!\n\nAnd non-hyphenated options too! Just use `argv._`!\n-------------------------------------------------\n\nnonopt.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs').argv;\nconsole.log('(%d,%d)', argv.x, argv.y);\nconsole.log(argv._);\n````\n\n***\n\n $ ./nonopt.js -x 6.82 -y 3.35 rum\n (6.82,3.35)\n [ 'rum' ]\n\n $ ./nonopt.js \"me hearties\" -x 0.54 yo -y 1.12 ho\n (0.54,1.12)\n [ 'me hearties', 'yo', 'ho' ]\n\nYargs even counts your booleans!\n----------------------------------------------------------------------\n\ncount.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .count('verbose')\n .alias('v', 'verbose')\n .argv;\n\nVERBOSE_LEVEL = argv.verbose;\n\nfunction WARN() { VERBOSE_LEVEL >= 0 && console.log.apply(console, arguments); }\nfunction INFO() { VERBOSE_LEVEL >= 1 && console.log.apply(console, arguments); }\nfunction DEBUG() { VERBOSE_LEVEL >= 2 && console.log.apply(console, arguments); }\n\nWARN(\"Showing only important stuff\");\nINFO(\"Showing semi-important stuff too\");\nDEBUG(\"Extra chatty mode\");\n````\n\n***\n $ node count.js\n Showing only important stuff\n\n $ node count.js -v\n Showing only important stuff\n Showing semi-important stuff too\n\n $ node count.js -vv\n Showing only important stuff\n Showing semi-important stuff too\n Extra chatty mode\n\n $ node count.js -v --verbose\n Showing only important stuff\n Showing semi-important stuff too\n Extra chatty mode\n\nTell users how to use yer options and make demands.\n-------------------------------------------------\n\narea.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .usage('Usage: $0 -w [num] -h [num]')\n .demandOption(['w','h'])\n .argv;\n\nconsole.log(\"The area is:\", argv.w * argv.h);\n````\n\n***\n\n $ ./area.js -w 55 -h 11\n The area is: 605\n\n $ node ./area.js -w 4.91 -w 2.51\n Usage: area.js -w [num] -h [num]\n\n Options:\n -w [required]\n -h [required]\n\n Missing required arguments: h\n\nAfter yer demands have been met, demand more! Ask for non-hyphenated arguments!\n-----------------------------------------\n\ndemand_count.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .demandCommand(2)\n .argv;\nconsole.dir(argv);\n````\n\n***\n\n\t$ ./demand_count.js a\n\n\tNot enough non-option arguments: got 1, need at least 2\n\n\t$ ./demand_count.js a b\n\t{ _: [ 'a', 'b' ], '$0': 'demand_count.js' }\n\n\t$ ./demand_count.js a b c\n\t{ _: [ 'a', 'b', 'c' ], '$0': 'demand_count.js' }\n\nEVEN MORE SHIVER ME TIMBERS!\n------------------\n\ndefault_singles.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .default('x', 10)\n .default('y', 10)\n .argv\n;\nconsole.log(argv.x + argv.y);\n````\n\n***\n\n $ ./default_singles.js -x 5\n 15\n\ndefault_hash.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .default({ x : 10, y : 10 })\n .argv\n;\nconsole.log(argv.x + argv.y);\n````\n\n***\n\n $ ./default_hash.js -y 7\n 17\n\nAnd if you really want to get all descriptive about it...\n---------------------------------------------------------\n\nboolean_single.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .boolean('v')\n .argv\n;\nconsole.dir(argv.v);\nconsole.dir(argv._);\n````\n\n***\n\n $ ./boolean_single.js -v \"me hearties\" yo ho\n true\n [ 'me hearties', 'yo', 'ho' ]\n\nboolean_double.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .boolean(['x','y','z'])\n .argv\n;\nconsole.dir([ argv.x, argv.y, argv.z ]);\nconsole.dir(argv._);\n````\n\n***\n\n $ ./boolean_double.js -x -z one two three\n [ true, false, true ]\n [ 'one', 'two', 'three' ]\n\nYargs is here to help you...\n---------------------------\n\nYe can describe parameters fer help messages and set aliases. Yargs figures\nout how ter format a handy help string automatically.\n\nline_count.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .usage('Usage: $0 <command> [options]')\n .command('count', 'Count the lines in a file')\n .example('$0 count -f foo.js', 'count the lines in the given file')\n .alias('f', 'file')\n .nargs('f', 1)\n .describe('f', 'Load a file')\n .demandOption(['f'])\n .help('h')\n .alias('h', 'help')\n .epilog('copyright 2015')\n .argv;\n\nvar fs = require('fs');\nvar s = fs.createReadStream(argv.file);\n\nvar lines = 0;\ns.on('data', function (buf) {\n lines += buf.toString().match(/\\n/g).length;\n});\n\ns.on('end', function () {\n console.log(lines);\n});\n````\n\n***\n $ node line_count.js count\n Usage: line_count.js <command> [options]\n\n Commands:\n count Count the lines in a file\n\n Options:\n -f, --file Load a file [required]\n -h, --help Show help [boolean]\n\n Examples:\n line_count.js count -f foo.js count the lines in the given file\n\n copyright 2015\n\n Missing required arguments: f\n\n $ node line_count.js count --file line_count.js\n 26\n\n $ node line_count.js count -f line_count.js\n 26\n\nmethods\n=======\n\nBy itself,\n\n````javascript\nrequire('yargs').argv\n````\n\nwill use the `process.argv` array to construct the `argv` object.\n\nYou can pass in the `process.argv` yourself:\n\n````javascript\nrequire('yargs')([ '-x', '1', '-y', '2' ]).argv\n````\n\nor use `.parse()` to do the same thing:\n\n````javascript\nrequire('yargs').parse([ '-x', '1', '-y', '2' ])\n````\n\nThe rest of these methods below come in just before the terminating `.argv`.\n\n<a name=\"alias\"></a>.alias(key, alias)\n------------------\n\nSet key names as equivalent such that updates to a key will propagate to aliases\nand vice-versa.\n\nOptionally `.alias()` can take an object that maps keys to aliases.\nEach key of this object should be the canonical version of the option, and each\nvalue should be a string or an array of strings.\n\n.argv\n-----\n\nGet the arguments as a plain old object.\n\nArguments without a corresponding flag show up in the `argv._` array.\n\nThe script name or node command is available at `argv.$0` similarly to how `$0`\nworks in bash or perl.\n\nIf `yargs` is executed in an environment that embeds node and there's no script name (e.g.\n[Electron](http://electron.atom.io/) or [nw.js](http://nwjs.io/)), it will ignore the first parameter since it\nexpects it to be the script name. In order to override this behavior, use `.parse(process.argv.slice(1))`\ninstead of `.argv` and the first parameter won't be ignored.\n\n<a name=\"array\"></a>.array(key)\n----------\n\nTell the parser to interpret `key` as an array. If `.array('foo')` is set,\n`--foo foo bar` will be parsed as `['foo', 'bar']` rather than as `'foo'`.\n\n<a name=\"boolean\"></a>.boolean(key)\n-------------\n\nInterpret `key` as a boolean. If a non-flag option follows `key` in\n`process.argv`, that string won't get set as the value of `key`.\n\n`key` will default to `false`, unless a `default(key, undefined)` is\nexplicitly set.\n\nIf `key` is an array, interpret all the elements as booleans.\n\n.check(fn, [global=true])\n----------\n\nCheck that certain conditions are met in the provided arguments.\n\n`fn` is called with two arguments, the parsed `argv` hash and an array of options and their aliases.\n\nIf `fn` throws or returns a non-truthy value, show the thrown error, usage information, and\nexit.\n\n`global` indicates whether `check()` should be enabled both\nat the top-level and for each sub-command.\n\n<a name=\"choices\"></a>.choices(key, choices)\n----------------------\n\nLimit valid values for `key` to a predefined set of `choices`, given as an array\nor as an individual value.\n\n```js\nvar argv = require('yargs')\n .alias('i', 'ingredient')\n .describe('i', 'choose your sandwich ingredients')\n .choices('i', ['peanut-butter', 'jelly', 'banana', 'pickles'])\n .help('help')\n .argv\n```\n\nIf this method is called multiple times, all enumerated values will be merged\ntogether. Choices are generally strings or numbers, and value matching is\ncase-sensitive.\n\nOptionally `.choices()` can take an object that maps multiple keys to their\nchoices.\n\nChoices can also be specified as `choices` in the object given to `option()`.\n\n```js\nvar argv = require('yargs')\n .option('size', {\n alias: 's',\n describe: 'choose a size',\n choices: ['xs', 's', 'm', 'l', 'xl']\n })\n .argv\n```\n\n<a name=\"coerce\"></a>.coerce(key, fn)\n----------------\n\nProvide a synchronous function to coerce or transform the value(s) given on the\ncommand line for `key`.\n\nThe coercion function should accept one argument, representing the parsed value\nfrom the command line, and should return a new value or throw an error. The\nreturned value will be used as the value for `key` (or one of its aliases) in\n`argv`.\n\nIf the function throws, the error will be treated as a validation\nfailure, delegating to either a custom [`.fail()`](#fail) handler or printing\nthe error message in the console.\n\nCoercion will be applied to a value after\nall other modifications, such as [`.normalize()`](#normalize).\n\n_Examples:_\n\n```js\nvar argv = require('yargs')\n .coerce('file', function (arg) {\n return require('fs').readFileSync(arg, 'utf8')\n })\n .argv\n```\n\nOptionally `.coerce()` can take an object that maps several keys to their\nrespective coercion function.\n\n```js\nvar argv = require('yargs')\n .coerce({\n date: Date.parse,\n json: JSON.parse\n })\n .argv\n```\n\nYou can also map the same function to several keys at one time. Just pass an\narray of keys as the first argument to `.coerce()`:\n\n```js\nvar path = require('path')\nvar argv = require('yargs')\n .coerce(['src', 'dest'], path.resolve)\n .argv\n```\n\nIf you are using dot-notion or arrays, .e.g., `user.email` and `user.password`,\ncoercion will be applied to the final object that has been parsed:\n\n```js\n// --user.name Batman --user.password 123\n// gives us: {name: 'batman', password: '[SECRET]'}\nvar argv = require('yargs')\n .option('user')\n .coerce('user', opt => {\n opt.name = opt.name.toLowerCase()\n opt.password = '[SECRET]'\n return opt\n })\n .argv\n```\n\n.command(cmd, desc, [builder], [handler])\n-----------------------------------------\n.command(cmd, desc, [module])\n-----------------------------\n.command(module)\n----------------\n\nDefine the commands exposed by your application.\n\n`cmd` should be a string representing the command or an array of strings\nrepresenting the command and its aliases. Read more about command aliases in the\nsubsection below.\n\nUse `desc` to provide a description for each command your application accepts (the\nvalues stored in `argv._`). Set `desc` to `false` to create a hidden command.\nHidden commands don't show up in the help output and aren't available for\ncompletion.\n\nOptionally, you can provide a `builder` object to give hints about the\noptions that your command accepts:\n\n```js\nyargs\n .command('get', 'make a get HTTP request', {\n url: {\n alias: 'u',\n default: 'http://yargs.js.org/'\n }\n })\n .help()\n .argv\n```\n\n`builder` can also be a function. This function is executed\nwith a `yargs` instance, and can be used to provide _advanced_ command specific help:\n\n```js\nyargs\n .command('get', 'make a get HTTP request', function (yargs) {\n return yargs.option('url', {\n alias: 'u',\n default: 'http://yargs.js.org/'\n })\n })\n .help()\n .argv\n```\n\nYou can also provide a handler function, which will be executed with the\nparsed `argv` object:\n\n```js\nyargs\n .command(\n 'get',\n 'make a get HTTP request',\n function (yargs) {\n return yargs.option('u', {\n alias: 'url',\n describe: 'the URL to make an HTTP request to'\n })\n },\n function (argv) {\n console.log(argv.url)\n }\n )\n .help()\n .argv\n```\n\n### Default Commands\n\nTo specify a default command use the character `*`. A default command\nwill be run if the positional arguments provided match no known\ncommands:\n\n```js\nconst argv = require('yargs')\n .command('*', 'the default command', () => {}, (argv) => {\n console.log('this command will be run by default')\n })\n```\n\nThe command defined above will be executed if the program\nis run with `./my-cli.js --x=22`.\n\nDefault commands can also be used as a command alias, like so:\n\n```js\nconst argv = require('yargs')\n .command(['serve', '*'], 'the serve command', () => {}, (argv) => {\n console.log('this command will be run by default')\n })\n```\n\nThe command defined above will be executed if the program\nis run with `./my-cli.js --x=22`, or with `./my-cli.js serve --x=22`.\n\n### Positional Arguments\n\nCommands can accept _optional_ and _required_ positional arguments. Required\npositional arguments take the form `<foo>`, and optional arguments\ntake the form `[bar]`. The parsed positional arguments will be populated in\n`argv`:\n\n```js\nyargs.command('get <source> [proxy]', 'make a get HTTP request')\n .help()\n .argv\n```\n\n#### Positional Argument Aliases\n\nAliases can be provided for positional arguments using the `|` character.\nAs an example, suppose our application allows either a username _or_\nan email as the first argument:\n\n```js\nyargs.command('get <username|email> [password]', 'fetch a user by username or email.')\n .help()\n .argv\n```\n\nIn this way, both `argv.username` and `argv.email` would be populated with the\nsame value when the command is executed.\n\n#### Variadic Positional Arguments\n\nThe last positional argument can optionally accept an array of\nvalues, by using the `..` operator:\n\n```js\nyargs.command('download <url> [files..]', 'download several files')\n .help()\n .argv\n```\n\n### Command Execution\n\nWhen a command is given on the command line, yargs will execute the following:\n\n1. push the command into the current context\n2. reset non-global configuration\n3. apply command configuration via the `builder`, if given\n4. parse and validate args from the command line, including positional args\n5. if validation succeeds, run the `handler` function, if given\n6. pop the command from the current context\n\n### Command Aliases\n\nYou can define aliases for a command by putting the command and all of its\naliases into an array.\n\nAlternatively, a command module may specify an `aliases` property, which may be\na string or an array of strings. All aliases defined via the `command` property\nand the `aliases` property will be concatenated together.\n\nThe first element in the array is considered the canonical command, which may\ndefine positional arguments, and the remaining elements in the array are\nconsidered aliases. Aliases inherit positional args from the canonical command,\nand thus any positional args defined in the aliases themselves are ignored.\n\nIf either the canonical command or any of its aliases are given on the command\nline, the command will be executed.\n\n```js\n#!/usr/bin/env node\nrequire('yargs')\n .command(['start [app]', 'run', 'up'], 'Start up an app', {}, (argv) => {\n console.log('starting up the', argv.app || 'default', 'app')\n })\n .command({\n command: 'configure <key> [value]',\n aliases: ['config', 'cfg'],\n desc: 'Set a config variable',\n builder: (yargs) => yargs.default('value', 'true'),\n handler: (argv) => {\n console.log(`setting ${argv.key} to ${argv.value}`)\n }\n })\n .demandCommand()\n .help()\n .wrap(72)\n .argv\n```\n\n```\n$ ./svc.js help\nCommands:\n start [app] Start up an app [aliases: run, up]\n configure <key> [value] Set a config variable [aliases: config, cfg]\n\nOptions:\n --help Show help [boolean]\n\n$ ./svc.js cfg concurrency 4\nsetting concurrency to 4\n\n$ ./svc.js run web\nstarting up the web app\n```\n\n### Providing a Command Module\n\nFor complicated commands you can pull the logic into a module. A module\nsimply needs to export:\n\n* `exports.command`: string (or array of strings) that executes this command when given on the command line, first string may contain positional args\n* `exports.aliases`: array of strings (or a single string) representing aliases of `exports.command`, positional args defined in an alias are ignored\n* `exports.describe`: string used as the description for the command in help text, use `false` for a hidden command\n* `exports.builder`: object declaring the options the command accepts, or a function accepting and returning a yargs instance\n* `exports.handler`: a function which will be passed the parsed argv.\n\n```js\n// my-module.js\nexports.command = 'get <source> [proxy]'\n\nexports.describe = 'make a get HTTP request'\n\nexports.builder = {\n banana: {\n default: 'cool'\n },\n batman: {\n default: 'sad'\n }\n}\n\nexports.handler = function (argv) {\n // do something with argv.\n}\n```\n\nYou then register the module like so:\n\n```js\nyargs.command(require('my-module'))\n .help()\n .argv\n```\n\nOr if the module does not export `command` and `describe` (or if you just want to override them):\n\n```js\nyargs.command('get <source> [proxy]', 'make a get HTTP request', require('my-module'))\n .help()\n .argv\n```\n\n.commandDir(directory, [opts])\n------------------------------\n\nApply command modules from a directory relative to the module calling this method.\n\nThis allows you to organize multiple commands into their own modules under a\nsingle directory and apply all of them at once instead of calling\n`.command(require('./dir/module'))` multiple times.\n\nBy default, it ignores subdirectories. This is so you can use a directory\nstructure to represent your command hierarchy, where each command applies its\nsubcommands using this method in its builder function. See the example below.\n\nNote that yargs assumes all modules in the given directory are command modules\nand will error if non-command modules are encountered. In this scenario, you\ncan either move your module to a different directory or use the `exclude` or\n`visit` option to manually filter it out. More on that below.\n\n`directory` is a relative directory path as a string (required).\n\n`opts` is an options object (optional). The following options are valid:\n\n- `recurse`: boolean, default `false`\n\n Look for command modules in all subdirectories and apply them as a flattened\n (non-hierarchical) list.\n\n- `extensions`: array of strings, default `['js']`\n\n The types of files to look for when requiring command modules.\n\n- `visit`: function\n\n A synchronous function called for each command module encountered. Accepts\n `commandObject`, `pathToFile`, and `filename` as arguments. Returns\n `commandObject` to include the command; any falsy value to exclude/skip it.\n\n- `include`: RegExp or function\n\n Whitelist certain modules. See [`require-directory` whitelisting](https://www.npmjs.com/package/require-directory#whitelisting) for details.\n\n- `exclude`: RegExp or function\n\n Blacklist certain modules. See [`require-directory` blacklisting](https://www.npmjs.com/package/require-directory#blacklisting) for details.\n\n### Example command hierarchy using `.commandDir()`\n\nDesired CLI:\n\n```sh\n$ myapp --help\n$ myapp init\n$ myapp remote --help\n$ myapp remote add base http://yargs.js.org\n$ myapp remote prune base\n$ myapp remote prune base fork whatever\n```\n\nDirectory structure:\n\n```\nmyapp/\n├─ cli.js\n└─ cmds/\n ├─ init.js\n ├─ remote.js\n └─ remote_cmds/\n ├─ add.js\n └─ prune.js\n```\n\ncli.js:\n\n```js\n#!/usr/bin/env node\nrequire('yargs')\n .commandDir('cmds')\n .demandCommand()\n .help()\n .argv\n```\n\ncmds/init.js:\n\n```js\nexports.command = 'init [dir]'\nexports.desc = 'Create an empty repo'\nexports.builder = {\n dir: {\n default: '.'\n }\n}\nexports.handler = function (argv) {\n console.log('init called for dir', argv.dir)\n}\n```\n\ncmds/remote.js:\n\n```js\nexports.command = 'remote <command>'\nexports.desc = 'Manage set of tracked repos'\nexports.builder = function (yargs) {\n return yargs.commandDir('remote_cmds')\n}\nexports.handler = function (argv) {}\n```\n\ncmds/remote_cmds/add.js:\n\n```js\nexports.command = 'add <name> <url>'\nexports.desc = 'Add remote named <name> for repo at url <url>'\nexports.builder = {}\nexports.handler = function (argv) {\n console.log('adding remote %s at url %s', argv.name, argv.url)\n}\n```\n\ncmds/remote_cmds/prune.js:\n\n```js\nexports.command = 'prune <name> [names..]'\nexports.desc = 'Delete tracked branches gone stale for remotes'\nexports.builder = {}\nexports.handler = function (argv) {\n console.log('pruning remotes %s', [].concat(argv.name).concat(argv.names).join(', '))\n}\n```\n\n.completion([cmd], [description], [fn])\n---------------------------------------\n\nEnable bash-completion shortcuts for commands and options.\n\n`cmd`: When present in `argv._`, will result in the `.bashrc` completion script\nbeing outputted. To enable bash completions, concat the generated script to your\n`.bashrc` or `.bash_profile`.\n\n`description`: Provide a description in your usage instructions for the command\nthat generates bash completion scripts.\n\n`fn`: Rather than relying on yargs' default completion functionality, which\nshiver me timbers is pretty awesome, you can provide your own completion\nmethod.\n\nIf invoked without parameters, `.completion()` will make `completion` the command to output\nthe completion script.\n\n```js\nvar argv = require('yargs')\n .completion('completion', function(current, argv) {\n // 'current' is the current command being completed.\n // 'argv' is the parsed arguments so far.\n // simply return an array of completions.\n return [\n 'foo',\n 'bar'\n ];\n })\n .argv;\n```\n\nYou can also provide asynchronous completions.\n\n```js\nvar argv = require('yargs')\n .completion('completion', function(current, argv, done) {\n setTimeout(function() {\n done([\n 'apple',\n 'banana'\n ]);\n }, 500);\n })\n .argv;\n```\n\nBut wait, there's more! You can return an asynchronous promise.\n\n```js\nvar argv = require('yargs')\n .completion('completion', function(current, argv, done) {\n return new Promise(function (resolve, reject) {\n setTimeout(function () {\n resolve(['apple', 'banana'])\n }, 10)\n })\n })\n .argv;\n```\n\n<a name=\"config\"></a>.config([key], [description], [parseFn])\n-------------------------------------------------------------\n.config(object)\n---------------\n\nTells the parser that if the option specified by `key` is passed in, it\nshould be interpreted as a path to a JSON config file. The file is loaded\nand parsed, and its properties are set as arguments. Because the file is\nloaded using Node's require(), the filename MUST end in `.json` to be\ninterpreted correctly.\n\nIf invoked without parameters, `.config()` will make `--config` the option to pass the JSON config file.\n\nAn optional `description` can be provided to customize the config (`key`) option\nin the usage string.\n\nAn optional `parseFn` can be used to provide a custom parser. The parsing\nfunction must be synchronous, and should return an object containing\nkey value pairs or an error.\n\n```js\nvar argv = require('yargs')\n .config('settings', function (configPath) {\n return JSON.parse(fs.readFileSync(configPath, 'utf-8'))\n })\n .argv\n```\n\nYou can also pass an explicit configuration `object`, it will be parsed\nand its properties will be set as arguments.\n\n```js\nvar argv = require('yargs')\n .config({foo: 1, bar: 2})\n .argv\nconsole.log(argv)\n```\n\n```\n$ node test.js\n{ _: [],\n foo: 1,\n bar: 2,\n '$0': 'test.js' }\n```\n\nNote that a configuration object may extend from a JSON file using the `\"extends\"` property. When doing so, the `\"extends\"` value should be a path (relative or absolute) to the extended JSON file.\n\n<a name=\"conflicts\"></a>.conflicts(x, y)\n----------------------------------------------\n\nGiven the key `x` is set, the key `y` must not be set.\n\nOptionally `.conflicts()` can accept an object specifying multiple conflicting keys.\n\n<a name=\"count\"></a>.count(key)\n------------\n\nInterpret `key` as a boolean flag, but set its parsed value to the number of\nflag occurrences rather than `true` or `false`. Default value is thus `0`.\n\n<a name=\"default\"></a>.default(key, value, [description])\n---------------------------------------------------------\n.defaults(key, value, [description])\n------------------------------------\n\n**Note:** The `.defaults()` alias is deprecated. It will be\nremoved in the next major version.\n\nSet `argv[key]` to `value` if no option was specified in `process.argv`.\n\nOptionally `.default()` can take an object that maps keys to default values.\n\nBut wait, there's more! The default value can be a `function` which returns\na value. The name of the function will be used in the usage string:\n\n```js\nvar argv = require('yargs')\n .default('random', function randomValue() {\n return Math.random() * 256;\n }).argv;\n```\n\nOptionally, `description` can also be provided and will take precedence over\ndisplaying the value in the usage instructions:\n\n```js\n.default('timeout', 60000, '(one-minute)')\n```\n\n<a name=\"demand\"></a>.demand(count, [max], [msg]) [DEPRECATED]\n--------------------\n\n`demand()` has been deprecated, please instead see [`demandOption()`](#demandOption) and\n[`demandCommand()`](#demandCommand).\n\n<a name=\"demandOption\"></a>.demandOption(key, [msg | boolean])\n------------------------------\n.demandOption(key, msg)\n------------------------------\n\nIf `key` is a string, show the usage information and exit if `key` wasn't\nspecified in `process.argv`.\n\nIf `key` is an array, demand each element.\n\nIf a `msg` string is given, it will be printed when the argument is missing, instead of the standard error message.\n\n```javascript\n// demand an array of keys to be provided\nrequire('yargs')\n .option('run', {\n alias: 'r',\n describe: 'run your program'\n })\n .option('path', {\n alias: 'p',\n describe: 'provide a path to file'\n })\n .option('spec', {\n alias: 's',\n describe: 'program specifications'\n })\n .demandOption(['run', 'path'], 'Please provide both run and path arguments to work with this tool')\n .help()\n .argv\n```\nwhich will provide the following output:\n```bash\nOptions:\n --run, -r run your program [required]\n --path, -p provide a path to file [required]\n --spec, -s program specifications\n --help Show help [boolean]\n\n Missing required arguments: run, path\n Please provide both run and path arguments to work with this tool\n```\n\nIf a `boolean` value is given, it controls whether the option is demanded;\nthis is useful when using `.options()` to specify command line parameters.\n\n```javascript\n// demand individual options within the option constructor\nrequire('yargs')\n .options({\n 'run': {\n alias: 'r',\n describe: 'run your program',\n demandOption: true\n },\n 'path': {\n alias: 'p',\n describe: 'provide a path to file',\n demandOption: true\n },\n 'spec': {\n alias: 's',\n describe: 'program specifications'\n }\n })\n .help()\n .argv\n```\nwhich will provide the following output:\n```bash\nOptions:\n --run, -r run your program [required]\n --path, -p provide a path to file [required]\n --spec, -s program specifications\n --help Show help [boolean]\n\nMissing required arguments: run, path\n```\n\n<a name=\"demandCommand\"></a>.demandCommand([min=1], [minMsg])\n------------------------------\n.demandCommand([min=1], [max], [minMsg], [maxMsg])\n------------------------------\n\nDemand in context of commands. You can demand a minimum and a maximum number a user can have within your program, as well as provide corresponding error messages if either of the demands is not met.\n```javascript\nrequire('yargs')\n .command({\n command: 'configure <key> [value]',\n aliases: ['config', 'cfg'],\n desc: 'Set a config variable',\n builder: (yargs) => yargs.default('value', 'true'),\n handler: (argv) => {\n console.log(`setting ${argv.key} to ${argv.value}`)\n }\n })\n // provide a minimum demand and a minimum demand message\n .demandCommand(1, 'You need at least one command before moving on')\n .help()\n .argv\n```\n\nwhich will provide the following output:\n\n```bash\nCommands:\n configure <key> [value] Set a config variable [aliases: config, cfg]\n\nOptions:\n --help Show help [boolean]\n\nYou need at least one command before moving on\n```\n\n_Note: in `minMsg` and `maxMsg`, every occurrence of `$0` will be replaced\nwith the observed value, and every instance of `$1` will be replaced with the\nexpected value._\n\n<a name=\"describe\"></a>.describe(key, desc)\n--------------------\n\nDescribe a `key` for the generated usage information.\n\nOptionally `.describe()` can take an object that maps keys to descriptions.\n\n.detectLocale(boolean)\n-----------\n\nShould yargs attempt to detect the os' locale? Defaults to `true`.\n\n.env([prefix])\n--------------\n\nTell yargs to parse environment variables matching the given prefix and apply\nthem to argv as though they were command line arguments.\n\nUse the \"__\" separator in the environment variable to indicate nested options.\n(e.g. prefix_nested__foo => nested.foo)\n\nIf this method is called with no argument or with an empty string or with `true`,\nthen all env vars will be applied to argv.\n\nProgram arguments are defined in this order of precedence:\n\n1. Command line args\n2. Env vars\n3. Config file/objects\n4. Configured defaults\n\n```js\nvar argv = require('yargs')\n .env('MY_PROGRAM')\n .option('f', {\n alias: 'fruit-thing',\n default: 'apple'\n })\n .argv\nconsole.log(argv)\n```\n\n```\n$ node fruity.js\n{ _: [],\n f: 'apple',\n 'fruit-thing': 'apple',\n fruitThing: 'apple',\n '$0': 'fruity.js' }\n```\n\n```\n$ MY_PROGRAM_FRUIT_THING=banana node fruity.js\n{ _: [],\n fruitThing: 'banana',\n f: 'banana',\n 'fruit-thing': 'banana',\n '$0': 'fruity.js' }\n```\n\n```\n$ MY_PROGRAM_FRUIT_THING=banana node fruity.js -f cat\n{ _: [],\n f: 'cat',\n 'fruit-thing': 'cat',\n fruitThing: 'cat',\n '$0': 'fruity.js' }\n```\n\nEnv var parsing is disabled by default, but you can also explicitly disable it\nby calling `.env(false)`, e.g. if you need to undo previous configuration.\n\n.epilog(str)\n------------\n.epilogue(str)\n--------------\n\nA message to print at the end of the usage instructions, e.g.\n\n```js\nvar argv = require('yargs')\n .epilogue('for more information, find our manual at http://example.com');\n```\n\n.example(cmd, desc)\n-------------------\n\nGive some example invocations of your program. Inside `cmd`, the string\n`$0` will get interpolated to the current script name or node command for the\npresent script similar to how `$0` works in bash or perl.\nExamples will be printed out as part of the help message.\n\n<a name=\"exitprocess\"></a>.exitProcess(enable)\n----------------------------------\n\nBy default, yargs exits the process when the user passes a help flag, uses the\n`.version` functionality, or when validation fails. Calling\n`.exitProcess(false)` disables this behavior, enabling further actions after\nyargs have been validated.\n\n<a name=\"fail\"></a>.fail(fn)\n---------\n\nMethod to execute when a failure occurs, rather than printing the failure message.\n\n`fn` is called with the failure message that would have been printed, the\n`Error` instance originally thrown and yargs state when the failure\noccured.\n\n```js\nvar argv = require('yargs')\n .fail(function (msg, err, yargs) {\n if (err) throw err // preserve stack\n console.error('You broke it!')\n console.error(msg)\n console.error('You should be doing', yargs.help())\n process.exit(1)\n })\n .argv\n```\n\n.getCompletion(args, done);\n---------------------------\n\nAllows to programmatically get completion choices for any line.\n\n`args`: An array of the words in the command line to complete.\n\n`done`: The callback to be called with the resulting completions.\n\nFor example:\n\n```js\nrequire('yargs')\n .option('foobar')\n .option('foobaz')\n .completion()\n .getCompletion(['./test.js', '--foo'], function (completions) {\n console.log(completions)\n })\n```\n\nOutputs the same completion choices as `./test.js --foo`<kbd>TAB</kbd>: `--foobar` and `--foobaz`\n\n<a name=\"global\"></a>.global(globals, [global=true])\n------------\n\nIndicate that an option (or group of options) should not be reset when a command\nis executed, as an example:\n\n```js\nvar argv = require('yargs')\n .option('a', {\n alias: 'all',\n default: true,\n global: false\n })\n .option('n', {\n alias: 'none',\n default: true,\n global: false\n })\n .command('foo', 'foo command', function (yargs) {\n return yargs.option('b', {\n alias: 'bar'\n })\n })\n .help('help')\n .global('a')\n .argv\n```\n\nIf the `foo` command is executed the `all` option will remain, but the `none`\noption will have been eliminated.\n\nOptions default to being global.\n\n<a name=\"group\"></a>.group(key(s), groupName)\n--------------------\n\nGiven a key, or an array of keys, places options under an alternative heading\nwhen displaying usage instructions, e.g.,\n\n```js\nvar yargs = require('yargs')(['--help'])\n .help()\n .group('batman', 'Heroes:')\n .describe('batman', \"world's greatest detective\")\n .wrap(null)\n .argv\n```\n***\n Heroes:\n --batman world's greatest detective\n\n Options:\n --help Show help [boolean]\n\n<a name=\"help\"></a>.help()\n-----------------------------------------\n.help([option | boolean])\n-----------------------------------------\n.help([option, [description | boolean]])\n-----------------------------------------\n.help([option, [description, [boolean]]])\n-----------------------------------------\n\nAdd an option (e.g. `--help`) and implicit command that displays the usage\nstring and exits the process.\n\nIf present, the `description` parameter customizes the description of\nthe help option in the usage string.\n\nIf a boolean argument is provided, it will enable or disable the use of an\nimplicit command. The implicit command is enabled by default, but it can be\ndisabled by passing `false`.\n\nNote that any multi-char aliases (e.g. `help`) used for the help option will\nalso be used for the implicit command. If there are no multi-char aliases (e.g.\n`h`), then all single-char aliases will be used for the command.\n\nIf invoked without parameters, `.help()` will use `--help` as the option and\n`help` as the implicit command to trigger help output.\n\nExample:\n\n```js\nvar yargs = require(\"yargs\")(['--help'])\n .usage(\"$0 -operand1 number -operand2 number -operation [add|subtract]\")\n .help()\n .argv\n```\n\nLater on, `argv` can be retrieved with `yargs.argv`.\n\n<a name=\"implies\"></a>.implies(x, y)\n--------------\n\nGiven the key `x` is set, it is required that the key `y` is set.\n\nOptionally `.implies()` can accept an object specifying multiple implications.\n\n.locale()\n---------\n\nReturn the locale that yargs is currently using.\n\nBy default, yargs will auto-detect the operating system's locale so that\nyargs-generated help content will display in the user's language.\n\nTo override this behavior with a static locale, pass the desired locale as a\nstring to this method (see below).\n\n.locale(locale)\n---------------\n\nOverride the auto-detected locale from the user's operating system with a static\nlocale. Note that the OS locale can be modified by setting/exporting the `LC_ALL`\nenvironment variable.\n\n```js\nvar argv = require('yargs')\n .usage('./$0 - follow ye instructions true')\n .option('option', {\n alias: 'o',\n describe: \"'tis a mighty fine option\",\n demandOption: true\n })\n .command('run', \"Arrr, ya best be knowin' what yer doin'\")\n .example('$0 run foo', \"shiver me timbers, here's an example for ye\")\n .help('help')\n .wrap(70)\n .locale('pirate')\n .argv\n```\n\n***\n\n```shell\n./test.js - follow ye instructions true\n\nChoose yer command:\n run Arrr, ya best be knowin' what yer doin'\n\nOptions for me hearties!\n --option, -o 'tis a mighty fine option [requi-yar-ed]\n --help Parlay this here code of conduct [boolean]\n\nEx. marks the spot:\n test.js run foo shiver me timbers, here's an example for ye\n\nYe be havin' to set the followin' argument land lubber: option\n```\n\nLocales currently supported:\n\n* **de:** German.\n* **en:** American English.\n* **es:** Spanish.\n* **fr:** French.\n* **hi:** Hindi.\n* **hu:** Hungarian.\n* **id:** Indonesian.\n* **it:** Italian.\n* **ja:** Japanese.\n* **ko:** Korean.\n* **nb:** Norwegian Bokmål.\n* **pirate:** American Pirate.\n* **pl:** Polish.\n* **pt:** Portuguese.\n* **pt_BR:** Brazilian Portuguese.\n* **ru:** Russian.\n* **th:** Thai.\n* **tr:** Turkish.\n* **zh_CN:** Chinese.\n\nTo submit a new translation for yargs:\n\n1. use `./locales/en.json` as a starting point.\n2. submit a pull request with the new locale file.\n\n*The [Microsoft Terminology Search](http://www.microsoft.com/Language/en-US/Search.aspx) can be useful for finding the correct terminology in your locale.*\n\n<a name=\"nargs\"></a>.nargs(key, count)\n-----------\n\nThe number of arguments that should be consumed after a key. This can be a\nuseful hint to prevent parsing ambiguity. For example:\n\n```js\nvar argv = require('yargs')\n .nargs('token', 1)\n .parse(['--token', '-my-token']);\n```\n\nparses as:\n\n`{ _: [], token: '-my-token', '$0': 'node test' }`\n\nOptionally `.nargs()` can take an object of `key`/`narg` pairs.\n\n<a name=\"normalize\"></a>.normalize(key)\n---------------\n\nThe key provided represents a path and should have `path.normalize()` applied.\n\n<a name=\"number\"></a>.number(key)\n------------\n\nTell the parser to always interpret `key` as a number.\n\nIf `key` is an array, all elements will be parsed as numbers.\n\nIf the option is given on the command line without a value, `argv` will be\npopulated with `undefined`.\n\nIf the value given on the command line cannot be parsed as a number, `argv` will\nbe populated with `NaN`.\n\nNote that decimals, hexadecimals, and scientific notation are all accepted.\n\n```js\nvar argv = require('yargs')\n .number('n')\n .number(['width', 'height'])\n .argv\n```\n\n.option(key, [opt])\n-----------------\n.options(key, [opt])\n------------------\n\nThis method can be used to make yargs aware of options that _could_\nexist. You can also pass an `opt` object which can hold further\ncustomization, like `.alias()`, `.demandOption()` etc. for that option.\n\nFor example:\n\n````javascript\nvar argv = require('yargs')\n .option('f', {\n alias: 'file',\n demandOption: true,\n default: '/etc/passwd',\n describe: 'x marks the spot',\n type: 'string'\n })\n .argv\n;\n````\n\nis the same as\n\n````javascript\nvar argv = require('yargs')\n .alias('f', 'file')\n .demandOption('f')\n .default('f', '/etc/passwd')\n .describe('f', 'x marks the spot')\n .string('f')\n .argv\n;\n````\n\nOptionally `.options()` can take an object that maps keys to `opt` parameters.\n\n````javascript\nvar argv = require('yargs')\n .options({\n 'f': {\n alias: 'file',\n demandOption: true,\n default: '/etc/passwd',\n describe: 'x marks the spot',\n type: 'string'\n }\n })\n .argv\n;\n````\n\nValid `opt` keys include:\n\n- `alias`: string or array of strings, alias(es) for the canonical option key, see [`alias()`](#alias)\n- `array`: boolean, interpret option as an array, see [`array()`](#array)\n- `boolean`: boolean, interpret option as a boolean flag, see [`boolean()`](#boolean)\n- `choices`: value or array of values, limit valid option arguments to a predefined set, see [`choices()`](#choices)\n- `coerce`: function, coerce or transform parsed command line values into another value, see [`coerce()`](#coerce)\n- `config`: boolean, interpret option as a path to a JSON config file, see [`config()`](#config)\n- `configParser`: function, provide a custom config parsing function, see [`config()`](#config)\n- `conflicts`: string or object, require certain keys not to be set, see [`conflicts()`](#conflicts)\n- `count`: boolean, interpret option as a count of boolean flags, see [`count()`](#count)\n- `default`: value, set a default value for the option, see [`default()`](#default)\n- `defaultDescription`: string, use this description for the default value in help content, see [`default()`](#default)\n- `demandOption`: boolean or string, demand the option be given, with optional error message, see [`demandOption()`](#demandOption)\n- `desc`/`describe`/`description`: string, the option description for help content, see [`describe()`](#describe)\n- `global`: boolean, indicate that this key should not be [reset](#reset) when a command is invoked, see [`global()`](#global)\n- `group`: string, when displaying usage instructions place the option under an alternative group heading, see [`group()`](#group)\n- `implies`: string or object, require certain keys to be set, see [`implies()`](#implies)\n- `nargs`: number, specify how many arguments should be consumed for the option, see [`nargs()`](#nargs)\n- `normalize`: boolean, apply `path.normalize()` to the option, see [`normalize()`](#normalize)\n- `number`: boolean, interpret option as a number, [`number()`](#number)\n- `requiresArg`: boolean, require the option be specified with a value, see [`requiresArg()`](#requiresArg)\n- `skipValidation`: boolean, skips validation if the option is present, see [`skipValidation()`](#skipValidation)\n- `string`: boolean, interpret option as a string, see [`string()`](#string)\n- `type`: one of the following strings\n - `'array'`: synonymous for `array: true`, see [`array()`](#array)\n - `'boolean'`: synonymous for `boolean: true`, see [`boolean()`](#boolean)\n - `'count'`: synonymous for `count: true`, see [`count()`](#count)\n - `'number'`: synonymous for `number: true`, see [`number()`](#number)\n - `'string'`: synonymous for `string: true`, see [`string()`](#string)\n\n.parse(args, [context], [parseCallback])\n------------\n\nParse `args` instead of `process.argv`. Returns the `argv` object.\n`args` may either be a pre-processed argv array, or a raw argument string.\n\nA `context` object can optionally be given as the second argument to `parse()`, providing a\nuseful mechanism for passing state information to commands:\n\n```js\nconst parser = yargs\n .command('lunch-train <restaurant>', 'start lunch train', function () {}, function (argv) {\n console.log(argv.restaurant, argv.time)\n })\n .parse(\"lunch-train rudy's\", {time: '12:15'})\n```\n\nA `parseCallback` can also be provided to `.parse()`. If a callback is given, it will be invoked with three arguments:\n\n1. `err`: populated if any validation errors raised while parsing.\n2. `argv`: the parsed argv object.\n3. `output`: any text that would have been output to the terminal, had a\n callback not been provided.\n\n```js\n// providing the `fn` argument to `parse()` runs yargs in headless mode, this\n// makes it easy to use yargs in contexts other than the CLI, e.g., writing\n// a chat-bot.\nconst parser = yargs\n .command('lunch-train <restaurant> <time>', 'start lunch train', function () {}, function (argv) {\n api.scheduleLunch(argv.restaurant, moment(argv.time))\n })\n .help()\n\nparser.parse(bot.userText, function (err, argv, output) {\n if (output) bot.respond(output)\n})\n```\n\n***Note:*** Providing a callback to `parse()` disables the [`exitProcess` setting](#exitprocess) until after the callback is invoked.\n\n.pkgConf(key, [cwd])\n------------\n\nSimilar to [`config()`](#config), indicates that yargs should interpret the object from the specified key in package.json\nas a configuration object.\n\n`cwd` can optionally be provided, the package.json will be read\nfrom this location.\n\nNote that a configuration stanza in package.json may extend from an identically keyed stanza in another package.json file using the `\"extends\"` property. When doing so, the `\"extends\"` value should be a path (relative or absolute) to the extended package.json file.\n\n.recommendCommands()\n---------------------------\n\nShould yargs provide suggestions regarding similar commands if no matching\ncommand is found?\n\n.require(key, [msg | boolean])\n------------------------------\n.required(key, [msg | boolean])\n------------------------------\n\nAn alias for [`demand()`](#demand). See docs there.\n\n<a name=\"requiresArg\"></a>.requiresArg(key)\n-----------------\n\nSpecifies either a single option key (string), or an array of options that\nmust be followed by option values. If any option value is missing, show the\nusage information and exit.\n\nThe default behavior is to set the value of any key not followed by an\noption value to `true`.\n\n<a name=\"reset\"></a>.reset()\n--------\n\nReset the argument object built up so far. This is useful for\ncreating nested command line interfaces. Use [global](#global)\nto specify keys that should not be reset.\n\n```js\nvar yargs = require('yargs')\n .usage('$0 command')\n .command('hello', 'hello command')\n .command('world', 'world command')\n .demandCommand(1, 'must provide a valid command'),\n argv = yargs.argv,\n command = argv._[0];\n\nif (command === 'hello') {\n yargs.reset()\n .usage('$0 hello')\n .help('h')\n .example('$0 hello', 'print the hello message!')\n .argv\n\n console.log('hello!');\n} else if (command === 'world'){\n yargs.reset()\n .usage('$0 world')\n .help('h')\n .example('$0 world', 'print the world message!')\n .argv\n\n console.log('world!');\n} else {\n yargs.showHelp();\n}\n```\n\n.showCompletionScript()\n----------------------\n\nGenerate a bash completion script. Users of your application can install this\nscript in their `.bashrc`, and yargs will provide completion shortcuts for\ncommands and options.\n\n.showHelp(consoleLevel='error')\n---------------------------\n\nPrint the usage data using the [`console`](https://nodejs.org/api/console.html) function `consoleLevel` for printing.\n\nExample:\n\n```js\nvar yargs = require(\"yargs\")\n .usage(\"$0 -operand1 number -operand2 number -operation [add|subtract]\");\nyargs.showHelp(); //prints to stderr using console.error()\n```\n\nOr, to print the usage data to `stdout` instead, you can specify the use of `console.log`:\n\n```js\nyargs.showHelp(\"log\"); //prints to stdout using console.log()\n```\n\nLater on, `argv` can be retrieved with `yargs.argv`.\n\n.showHelpOnFail(enable, [message])\n----------------------------------\n\nBy default, yargs outputs a usage string if any error is detected. Use the\n`.showHelpOnFail()` method to customize this behavior. If `enable` is `false`,\nthe usage string is not output. If the `message` parameter is present, this\nmessage is output after the error message.\n\nline_count.js:\n\n````javascript\n#!/usr/bin/env node\nvar argv = require('yargs')\n .usage('Count the lines in a file.\\nUsage: $0 -f <file>')\n .demandOption('f')\n .alias('f', 'file')\n .describe('f', 'Load a file')\n .string('f')\n .showHelpOnFail(false, 'Specify --help for available options')\n .help('help')\n .argv;\n\n// etc.\n````\n\n***\n\n```\n$ node line_count.js\nMissing argument value: f\n\nSpecify --help for available options\n```\n\n<a name=\"skipValidation\"></a>.skipValidation(key)\n-----------------\n\nSpecifies either a single option key (string), or an array of options.\nIf any of the options is present, yargs validation is skipped.\n\n.strict([global=true])\n---------\n\nAny command-line argument given that is not demanded, or does not have a\ncorresponding description, will be reported as an error.\n\n`global` indicates whether `strict()` should be enabled both\nat the top-level and for each sub-command.\n\n<a name=\"string\"></a>.string(key)\n------------\n\nTell the parser logic not to interpret `key` as a number or boolean.\nThis can be useful if you need to preserve leading zeros in an input.\n\nIf `key` is an array, interpret all the elements as strings.\n\n`.string('_')` will result in non-hyphenated arguments being interpreted as strings,\nregardless of whether they resemble numbers.\n\n.updateLocale(obj)\n------------------\n.updateStrings(obj)\n------------------\n\nOverride the default strings used by yargs with the key/value\npairs provided in `obj`:\n\n```js\nvar argv = require('yargs')\n .command('run', 'the run command')\n .help('help')\n .updateStrings({\n 'Commands:': 'My Commands -->\\n'\n })\n .wrap(null)\n .argv\n```\n\n***\n\n```shell\nMy Commands -->\n\n run the run command\n\nOptions:\n --help Show help [boolean]\n```\n\nIf you explicitly specify a `locale()`, you should do so *before* calling\n`updateStrings()`.\n\n.usage(message, [opts])\n---------------------\n\nSet a usage message to show which commands to use. Inside `message`, the string\n`$0` will get interpolated to the current script name or node command for the\npresent script similar to how `$0` works in bash or perl.\n\n`opts` is optional and acts like calling `.options(opts)`.\n\n<a name=\"version\"></a>.version([option], [description], [version])\n----------------------------------------\n\nAdd an option (e.g. `--version`) that displays the version number (given by the\n`version` parameter) and exits the process.\n\nIf no arguments are passed to `version` (`.version()`), yargs will parse the `package.json`\nof your module and use its `version` value. The default value of `option` is `--version`.\n\nYou can provide a `function` for version, rather than a string.\nThis is useful if you want to use a version stored in a location other than package.json:\n\n```js\nvar argv = require('yargs')\n .version(function() {\n return require('../lib/version').version;\n })\n .argv;\n```\n\n<a name=\"wrap\"></a>.wrap(columns)\n--------------\n\nFormat usage output to wrap at `columns` many columns.\n\nBy default wrap will be set to `Math.min(80, windowWidth)`. Use `.wrap(null)` to\nspecify no column limit (no right-align). Use `.wrap(yargs.terminalWidth())` to\nmaximize the width of yargs' usage instructions.\n\nparsing tricks\n==============\n\nstop parsing\n------------\n\nUse `--` to stop parsing flags and stuff the remainder into `argv._`.\n\n $ node examples/reflect.js -a 1 -b 2 -- -c 3 -d 4\n { _: [ '-c', '3', '-d', '4' ],\n a: 1,\n b: 2,\n '$0': 'examples/reflect.js' }\n\nnegate fields\n-------------\n\nIf you want to explicitly set a field to false instead of just leaving it\nundefined or to override a default you can do `--no-key`.\n\n $ node examples/reflect.js -a --no-b\n { _: [], a: true, b: false, '$0': 'examples/reflect.js' }\n\nnumbers\n-------\n\nEvery argument that looks like a number (`!isNaN(Number(arg))`) is converted to\none. This way you can just `net.createConnection(argv.port)` and you can add\nnumbers out of `argv` with `+` without having that mean concatenation,\nwhich is super frustrating.\n\nduplicates\n----------\n\nIf you specify a flag multiple times it will get turned into an array containing\nall the values in order.\n\n $ node examples/reflect.js -x 5 -x 8 -x 0\n { _: [], x: [ 5, 8, 0 ], '$0': 'examples/reflect.js' }\n\ndot notation\n------------\n\nWhen you use dots (`.`s) in argument names, an implicit object path is assumed.\nThis lets you organize arguments into nested objects.\n\n $ node examples/reflect.js --foo.bar.baz=33 --foo.quux=5\n { _: [],\n foo: { bar: { baz: 33 }, quux: 5 },\n '$0': 'examples/reflect.js' }\n\nshort numbers\n-------------\n\nShort numeric `-n5` style arguments work too:\n\n $ node examples/reflect.js -n123 -m456\n { _: [], n: 123, m: 456, '$0': 'examples/reflect.js' }\n\ninstallation\n============\n\nWith [npm](https://github.com/npm/npm), just do:\n\n npm install yargs\n\nor clone this project on github:\n\n git clone http://github.com/yargs/yargs.git\n\nTo run the tests with npm, just do:\n\n npm test\n\nconfiguration\n=============\n\nUsing the `yargs` stanza in your `package.json` you can turn on and off\nsome of yargs' parsing features:\n\n```json\n{\n \"yargs\": {\n \"short-option-groups\": true,\n \"camel-case-expansion\": true,\n \"dot-notation\": true,\n \"parse-numbers\": true,\n \"boolean-negation\": true\n }\n}\n```\n\nSee the [yargs-parser](https://github.com/yargs/yargs-parser#configuration) module\nfor detailed documentation of this feature.\n\ninspired by\n===========\n\nThis module is loosely inspired by Perl's\n[Getopt::Casual](http://search.cpan.org/~photo/Getopt-Casual-0.13.1/Casual.pm).\n\n[travis-url]: https://travis-ci.org/yargs/yargs\n[travis-image]: https://img.shields.io/travis/yargs/yargs/master.svg\n[coveralls-url]: https://coveralls.io/github/yargs/yargs\n[coveralls-image]: https://img.shields.io/coveralls/yargs/yargs.svg\n[npm-url]: https://www.npmjs.com/package/yargs\n[npm-image]: https://img.shields.io/npm/v/yargs.svg\n[windows-url]: https://ci.appveyor.com/project/bcoe/yargs-ljwvf\n[windows-image]: https://img.shields.io/appveyor/ci/bcoe/yargs-ljwvf/master.svg?label=Windows%20Tests\n[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg\n[standard-url]: http://standardjs.com/\n[conventional-commits-image]: https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg\n[conventional-commits-url]: https://conventionalcommits.org/\n[gitter-image]: https://img.shields.io/gitter/room/nwjs/nw.js.svg?maxAge=2592000\n[gitter-url]: https://gitter.im/yargs/Lobby?utm_source=share-link&utm_medium=link&utm_campaign=share-link\n# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n cb = once(cb)\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n cb = cb.once()\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n\nTo check whether you function has been called, use `fn.called`. Once the\nfunction is called for the first time the return value of the original\nfunction is saved in `fn.value` and subsequent calls will continue to\nreturn this value.\n\n```javascript\nvar once = require('once')\n\nfunction load (cb) {\n cb = once(cb)\n var stream = createStream()\n stream.once('data', cb)\n stream.once('end', function () {\n if (!cb.called) cb(new Error('not found'))\n })\n}\n```\n\n## `once.strict(func)`\n\nThrow an error if the function is called twice.\n\nSome functions are expected to be called only once. Using `once` for them would\npotentially hide logical errors.\n\nIn the example below, the `greet` function has to call the callback only once:\n\n```javascript\nfunction greet (name, cb) {\n // return is missing from the if statement\n // when no name is passed, the callback is called twice\n if (!name) cb('Hello anonymous')\n cb('Hello ' + name)\n}\n\nfunction log (msg) {\n console.log(msg)\n}\n\n// this will print 'Hello anonymous' but the logical error will be missed\ngreet(null, once(msg))\n\n// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time\ngreet(null, once.strict(msg))\n```\n# is-typedarray [](http://github.com/badges/stability-badges)\n\nDetect whether or not an object is a\n[Typed Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Typed_arrays).\n\n## Usage\n\n[](https://nodei.co/npm/is-typedarray/)\n\n### isTypedArray(array)\n\nReturns `true` when array is a Typed Array, and `false` when it is not.\n\n## License\n\nMIT. See [LICENSE.md](http://github.com/hughsk/is-typedarray/blob/master/LICENSE.md) for details.\nThe package exports an array of strings. Each string is an identifier\nfor a license exception under the [Software Package Data Exchange\n(SPDX)][SPDX] software license metadata standard.\n\n[SPDX]: https://spdx.org\n\n## Copyright and Licensing\n\n### SPDX\n\n\"SPDX\" is a federally registered United States trademark of The Linux\nFoundation Corporation.\n\nFrom version 2.0 of the [SPDX] specification:\n\n> Copyright © 2010-2015 Linux Foundation and its Contributors. Licensed\n> under the Creative Commons Attribution License 3.0 Unported. All other\n> rights are expressly reserved.\n\nThe Linux Foundation and the SPDX working groups are good people. Only\nthey decide what \"SPDX\" means, as a standard and otherwise. I respect\ntheir work and their rights. You should, too.\n\n### This Package\n\n> I created this package by copying exception identifiers out of the\n> SPDX specification. That work was mechanical, routine, and required no\n> creativity whatsoever. - Kyle Mitchell, package author\n\nUnited States users concerned about intellectual property may wish to\ndiscuss the following Supreme Court decisions with their attorneys:\n\n- _Baker v. Selden_, 101 U.S. 99 (1879)\n\n- _Feist Publications, Inc., v. Rural Telephone Service Co._,\n 499 U.S. 340 (1991)\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Usage\n\n $ npm install semver\n $ node\n var semver = require('semver')\n\n semver.valid('1.2.3') // '1.2.3'\n semver.valid('a.b.c') // null\n semver.clean(' =v1.2.3 ') // '1.2.3'\n semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\n semver.gt('1.2.3', '9.8.7') // false\n semver.lt('1.2.3', '9.8.7') // true\n\nAs a command-line utility:\n\n $ semver -h\n\n SemVer 5.1.0\n\n A JavaScript implementation of the http://semver.org/ specification\n Copyright Isaac Z. Schlueter\n\n Usage: semver [options] <version> [<version> [...]]\n Prints valid versions sorted by SemVer precedence\n\n Options:\n -r --range <range>\n Print versions that match the specified range.\n\n -i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n --preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n -l --loose\n Interpret versions and ranges loosely\n\n Program exits successfully if any valid version satisfies\n all supplied ranges, and prints all satisfying versions.\n\n If no satisfying versions are found, then exits failure.\n\n Versions are printed in ascending order, so supplying\n multiple versions to the utility will just sort them.\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<http://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\n> semver.inc('1.2.3', 'prerelease', 'beta')\n'1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```shell\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```shell\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any version satisfies)\n* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero digit in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0`\n* `^0.2.3` := `>=0.2.3 <0.3.0`\n* `^0.0.3` := `>=0.0.3 <0.0.4`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0`\n* `^0.0.x` := `>=0.0.0 <0.1.0`\n* `^0.0` := `>=0.0.0 <0.1.0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0`\n* `^0.x` := `>=0.0.0 <1.0.0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' | ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `loose` boolean argument that, if\ntrue, will be more forgiving about not-quite-valid semver strings.\nThe resulting output will always be 100% strict, of course.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n[](https://travis-ci.org/samccone/chrome-trace-event)\n\nchrome-trace-event: A node library for creating trace event logs of program\nexecution according to [Google's Trace Event\nformat](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU).\nThese logs can then be visualized with\n[trace-viewer](https://github.com/google/trace-viewer) or chrome devtools to grok one's programs.\n\n# Install\n\n npm install chrome-trace-event\n\n# Usage\n\n```javascript\nconst Trace = require(\"chrome-trace-event\").Tracer;\nconst trace = new Trace({\n noStream: true\n});\ntrace.pipe(fs.createWriteStream(outPath));\ntrace.flush();\n```\n\n# Links\n\n* https://github.com/google/trace-viewer/wiki\n* https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU\n\n# License\n\nMIT. See LICENSE.txt.\n# date-now\n\n[![build status][1]][2]\n\n[![browser support][3]][4]\n\nA requirable version of Date.now()\n\nUse-case is to be able to mock out Date.now() using require interception.\n\n## Example\n\n```js\nvar now = require(\"date-now\")\n\nvar ts = now()\nvar ts2 = Date.now()\nassert.equal(ts, ts2)\n```\n\n## example of seed\n\n```\nvar now = require(\"date-now/seed\")(timeStampFromServer)\n\n// ts is in \"sync\" with the seed value from the server\n// useful if your users have their local time being a few minutes\n// out of your server time.\nvar ts = now()\n```\n\n## Installation\n\n`npm install date-now`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [1]: https://secure.travis-ci.org/Colingo/date-now.png\n [2]: http://travis-ci.org/Colingo/date-now\n [3]: http://ci.testling.com/Colingo/date-now.png\n [4]: http://ci.testling.com/Colingo/date-now\n# create-hmac\n\n[](https://www.npmjs.org/package/create-hmac)\n[](https://travis-ci.org/crypto-browserify/createHmac)\n[](https://david-dm.org/crypto-browserify/createHmac#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nNode style HMACs for use in the browser, with native HMAC functions in node. API is the same as HMACs in node:\n\n```js\nvar createHmac = require('create-hmac')\nvar hmac = createHmac('sha224', Buffer.from('secret key'))\nhmac.update('synchronous write') //optional encoding parameter\nhmac.digest() // synchronously get result with optional encoding parameter\n\nhmac.write('write to it as a stream')\nhmac.end() //remember it's a stream\nhmac.read() //only if you ended it as a stream though\n```\ngauge\n=====\n\nA nearly stateless terminal based horizontal gauge / progress bar.\n\n```javascript\nvar Gauge = require(\"gauge\")\n\nvar gauge = new Gauge()\n\ngauge.show(\"test\", 0.20)\n\ngauge.pulse(\"this\")\n\ngauge.hide()\n```\n\n\n\n### CHANGES FROM 1.x\n\nGauge 2.x is breaking release, please see the [changelog] for details on\nwhat's changed if you were previously a user of this module.\n\n[changelog]: CHANGELOG.md\n\n### THE GAUGE CLASS\n\nThis is the typical interface to the module– it provides a pretty\nfire-and-forget interface to displaying your status information.\n\n```\nvar Gauge = require(\"gauge\")\n\nvar gauge = new Gauge([stream], [options])\n```\n\n* **stream** – *(optional, default STDERR)* A stream that progress bar\n updates are to be written to. Gauge honors backpressure and will pause\n most writing if it is indicated.\n* **options** – *(optional)* An option object.\n\nConstructs a new gauge. Gauges are drawn on a single line, and are not drawn\nif **stream** isn't a tty and a tty isn't explicitly provided.\n\nIf **stream** is a terminal or if you pass in **tty** to **options** then we\nwill detect terminal resizes and redraw to fit. We do this by watching for\n`resize` events on the tty. (To work around a bug in verisons of Node prior\nto 2.5.0, we watch for them on stdout if the tty is stderr.) Resizes to\nlarger window sizes will be clean, but shrinking the window will always\nresult in some cruft.\n\n**IMPORTANT:** If you prevously were passing in a non-tty stream but you still\nwant output (for example, a stream wrapped by the `ansi` module) then you\nneed to pass in the **tty** option below, as `gauge` needs access to\nthe underlying tty in order to do things like terminal resizes and terminal\nwidth detection.\n\nThe **options** object can have the following properties, all of which are\noptional:\n\n* **updateInterval**: How often gauge updates should be drawn, in miliseconds.\n* **fixedFramerate**: Defaults to false on node 0.8, true on everything\n else. When this is true a timer is created to trigger once every\n `updateInterval` ms, when false, updates are printed as soon as they come\n in but updates more often than `updateInterval` are ignored. The reason\n 0.8 doesn't have this set to true is that it can't `unref` its timer and\n so it would stop your program from exiting– if you want to use this\n feature with 0.8 just make sure you call `gauge.disable()` before you\n expect your program to exit.\n* **themes**: A themeset to use when selecting the theme to use. Defaults\n to `gauge/themes`, see the [themes] documentation for details.\n* **theme**: Select a theme for use, it can be a:\n * Theme object, in which case the **themes** is not used.\n * The name of a theme, which will be looked up in the current *themes*\n object.\n * A configuration object with any of `hasUnicode`, `hasColor` or\n `platform` keys, which if wlll be used to override our guesses when making\n a default theme selection.\n\n If no theme is selected then a default is picked using a combination of our\n best guesses at your OS, color support and unicode support.\n* **template**: Describes what you want your gauge to look like. The\n default is what npm uses. Detailed [documentation] is later in this\n document.\n* **hideCursor**: Defaults to true. If true, then the cursor will be hidden\n while the gauge is displayed.\n* **tty**: The tty that you're ultimately writing to. Defaults to the same\n as **stream**. This is used for detecting the width of the terminal and\n resizes. The width used is `tty.columns - 1`. If no tty is available then\n a width of `79` is assumed.\n* **enabled**: Defaults to true if `tty` is a TTY, false otherwise. If true\n the gauge starts enabled. If disabled then all update commands are\n ignored and no gauge will be printed until you call `.enable()`.\n* **Plumbing**: The class to use to actually generate the gauge for\n printing. This defaults to `require('gauge/plumbing')` and ordinarly you\n shouldn't need to override this.\n* **cleanupOnExit**: Defaults to true. Ordinarily we register an exit\n handler to make sure your cursor is turned back on and the progress bar\n erased when your process exits, even if you Ctrl-C out or otherwise exit\n unexpectedly. You can disable this and it won't register the exit handler.\n\n[has-unicode]: https://www.npmjs.com/package/has-unicode\n[themes]: #themes\n[documentation]: #templates\n\n#### `gauge.show(section | status, [completed])`\n\nThe first argument is either the section, the name of the current thing\ncontributing to progress, or an object with keys like **section**,\n**subsection** & **completed** (or any others you have types for in a custom\ntemplate). If you don't want to update or set any of these you can pass\n`null` and it will be ignored.\n\nThe second argument is the percent completed as a value between 0 and 1.\nWithout it, completion is just not updated. You'll also note that completion\ncan be passed in as part of a status object as the first argument. If both\nit and the completed argument are passed in, the completed argument wins.\n\n#### `gauge.hide([cb])`\n\nRemoves the gauge from the terminal. Optionally, callback `cb` after IO has\nhad an opportunity to happen (currently this just means after `setImmediate`\nhas called back.)\n\nIt turns out this is important when you're pausing the progress bar on one\nfilehandle and printing to another– otherwise (with a big enough print) node\ncan end up printing the \"end progress bar\" bits to the progress bar filehandle\nwhile other stuff is printing to another filehandle. These getting interleaved\ncan cause corruption in some terminals.\n\n#### `gauge.pulse([subsection])`\n\n* **subsection** – *(optional)* The specific thing that triggered this pulse\n\nSpins the spinner in the gauge to show output. If **subsection** is\nincluded then it will be combined with the last name passed to `gauge.show`.\n\n#### `gauge.disable()`\n\nHides the gauge and ignores further calls to `show` or `pulse`.\n\n#### `gauge.enable()`\n\nShows the gauge and resumes updating when `show` or `pulse` is called.\n\n#### `gauge.isEnabled()`\n\nReturns true if the gauge is enabled.\n\n#### `gauge.setThemeset(themes)`\n\nChange the themeset to select a theme from. The same as the `themes` option\nused in the constructor. The theme will be reselected from this themeset.\n\n#### `gauge.setTheme(theme)`\n\nChange the active theme, will be displayed with the next show or pulse. This can be:\n\n* Theme object, in which case the **themes** is not used.\n* The name of a theme, which will be looked up in the current *themes*\n object.\n* A configuration object with any of `hasUnicode`, `hasColor` or\n `platform` keys, which if wlll be used to override our guesses when making\n a default theme selection.\n\nIf no theme is selected then a default is picked using a combination of our\nbest guesses at your OS, color support and unicode support.\n\n#### `gauge.setTemplate(template)`\n\nChange the active template, will be displayed with the next show or pulse\n\n### Tracking Completion\n\nIf you have more than one thing going on that you want to track completion\nof, you may find the related [are-we-there-yet] helpful. It's `change`\nevent can be wired up to the `show` method to get a more traditional\nprogress bar interface.\n\n[are-we-there-yet]: https://www.npmjs.com/package/are-we-there-yet\n\n### THEMES\n\n```\nvar themes = require('gauge/themes')\n\n// fetch the default color unicode theme for this platform\nvar ourTheme = themes({hasUnicode: true, hasColor: true})\n\n// fetch the default non-color unicode theme for osx\nvar ourTheme = themes({hasUnicode: true, hasColor: false, platform: 'darwin'})\n\n// create a new theme based on the color ascii theme for this platform\n// that brackets the progress bar with arrows\nvar ourTheme = themes.newTheme(theme(hasUnicode: false, hasColor: true}), {\n preProgressbar: '→',\n postProgressbar: '←'\n})\n```\n\nThe object returned by `gauge/themes` is an instance of the `ThemeSet` class.\n\n```\nvar ThemeSet = require('gauge/theme-set')\nvar themes = new ThemeSet()\n// or\nvar themes = require('gauge/themes')\nvar mythemes = themes.newThemeset() // creates a new themeset based on the default themes\n```\n\n#### themes(opts)\n#### themes.getDefault(opts)\n\nTheme objects are a function that fetches the default theme based on\nplatform, unicode and color support.\n\nOptions is an object with the following properties:\n\n* **hasUnicode** - If true, fetch a unicode theme, if no unicode theme is\n available then a non-unicode theme will be used.\n* **hasColor** - If true, fetch a color theme, if no color theme is\n available a non-color theme will be used.\n* **platform** (optional) - Defaults to `process.platform`. If no\n platform match is available then `fallback` is used instead.\n\nIf no compatible theme can be found then an error will be thrown with a\n`code` of `EMISSINGTHEME`.\n\n#### themes.addTheme(themeName, themeObj)\n#### themes.addTheme(themeName, [parentTheme], newTheme)\n\nAdds a named theme to the themeset. You can pass in either a theme object,\nas returned by `themes.newTheme` or the arguments you'd pass to\n`themes.newTheme`.\n\n#### themes.getThemeNames()\n\nReturn a list of all of the names of the themes in this themeset. Suitable\nfor use in `themes.getTheme(…)`.\n\n#### themes.getTheme(name)\n\nReturns the theme object from this theme set named `name`.\n\nIf `name` does not exist in this themeset an error will be thrown with\na `code` of `EMISSINGTHEME`.\n\n#### themes.setDefault([opts], themeName)\n\n`opts` is an object with the following properties.\n\n* **platform** - Defaults to `'fallback'`. If your theme is platform\n specific, specify that here with the platform from `process.platform`, eg,\n `win32`, `darwin`, etc.\n* **hasUnicode** - Defaults to `false`. If your theme uses unicode you\n should set this to true.\n* **hasColor** - Defaults to `false`. If your theme uses color you should\n set this to true.\n\n`themeName` is the name of the theme (as given to `addTheme`) to use for\nthis set of `opts`.\n\n#### themes.newTheme([parentTheme,] newTheme)\n\nCreate a new theme object based on `parentTheme`. If no `parentTheme` is\nprovided then a minimal parentTheme that defines functions for rendering the\nactivity indicator (spinner) and progress bar will be defined. (This\nfallback parent is defined in `gauge/base-theme`.)\n\nnewTheme should be a bare object– we'll start by discussing the properties\ndefined by the default themes:\n\n* **preProgressbar** - displayed prior to the progress bar, if the progress\n bar is displayed.\n* **postProgressbar** - displayed after the progress bar, if the progress bar\n is displayed.\n* **progressBarTheme** - The subtheme passed through to the progress bar\n renderer, it's an object with `complete` and `remaining` properties\n that are the strings you want repeated for those sections of the progress\n bar.\n* **activityIndicatorTheme** - The theme for the activity indicator (spinner),\n this can either be a string, in which each character is a different step, or\n an array of strings.\n* **preSubsection** - Displayed as a separator between the `section` and\n `subsection` when the latter is printed.\n\nMore generally, themes can have any value that would be a valid value when rendering\ntemplates. The properties in the theme are used when their name matches a type in\nthe template. Their values can be:\n\n* **strings & numbers** - They'll be included as is\n* **function (values, theme, width)** - Should return what you want in your output.\n *values* is an object with values provided via `gauge.show`,\n *theme* is the theme specific to this item (see below) or this theme object,\n and *width* is the number of characters wide your result should be.\n\nThere are a couple of special prefixes:\n\n* **pre** - Is shown prior to the property, if its displayed.\n* **post** - Is shown after the property, if its displayed.\n\nAnd one special suffix:\n\n* **Theme** - Its value is passed to a function-type item as the theme.\n\n#### themes.addToAllThemes(theme)\n\nThis *mixes-in* `theme` into all themes currently defined. It also adds it\nto the default parent theme for this themeset, so future themes added to\nthis themeset will get the values from `theme` by default.\n\n#### themes.newThemeset()\n\nCopy the current themeset into a new one. This allows you to easily inherit\none themeset from another.\n\n### TEMPLATES\n\nA template is an array of objects and strings that, after being evaluated,\nwill be turned into the gauge line. The default template is:\n\n```javascript\n[\n {type: 'progressbar', length: 20},\n {type: 'activityIndicator', kerning: 1, length: 1},\n {type: 'section', kerning: 1, default: ''},\n {type: 'subsection', kerning: 1, default: ''}\n]\n```\n\nThe various template elements can either be **plain strings**, in which case they will\nbe be included verbatum in the output, or objects with the following properties:\n\n* *type* can be any of the following plus any keys you pass into `gauge.show` plus\n any keys you have on a custom theme.\n * `section` – What big thing you're working on now.\n * `subsection` – What component of that thing is currently working.\n * `activityIndicator` – Shows a spinner using the `activityIndicatorTheme`\n from your active theme.\n * `progressbar` – A progress bar representing your current `completed`\n using the `progressbarTheme` from your active theme.\n* *kerning* – Number of spaces that must be between this item and other\n items, if this item is displayed at all.\n* *maxLength* – The maximum length for this element. If its value is longer it\n will be truncated.\n* *minLength* – The minimum length for this element. If its value is shorter it\n will be padded according to the *align* value.\n* *align* – (Default: left) Possible values \"left\", \"right\" and \"center\". Works\n as you'd expect from word processors.\n* *length* – Provides a single value for both *minLength* and *maxLength*. If both\n *length* and *minLength or *maxLength* are specifed then the latter take precedence.\n* *value* – A literal value to use for this template item.\n* *default* – A default value to use for this template item if a value\n wasn't otherwise passed in.\n\n### PLUMBING\n\nThis is the super simple, assume nothing, do no magic internals used by gauge to\nimplement its ordinary interface.\n\n```\nvar Plumbing = require('gauge/plumbing')\nvar gauge = new Plumbing(theme, template, width)\n```\n\n* **theme**: The theme to use.\n* **template**: The template to use.\n* **width**: How wide your gauge should be\n\n#### `gauge.setTheme(theme)`\n\nChange the active theme.\n\n#### `gauge.setTemplate(template)`\n\nChange the active template.\n\n#### `gauge.setWidth(width)`\n\nChange the width to render at.\n\n#### `gauge.hide()`\n\nReturn the string necessary to hide the progress bar\n\n#### `gauge.hideCursor()`\n\nReturn a string to hide the cursor.\n\n#### `gauge.showCursor()`\n\nReturn a string to show the cursor.\n\n#### `gauge.show(status)`\n\nUsing `status` for values, render the provided template with the theme and return\na string that is suitable for printing to update the gauge.\n# Punycode.js [](https://travis-ci.org/bestiejs/punycode.js) [](https://coveralls.io/r/bestiejs/punycode.js) [](https://gemnasium.com/bestiejs/punycode.js)\n\nA robust Punycode converter that fully complies to [RFC 3492](https://tools.ietf.org/html/rfc3492) and [RFC 5891](https://tools.ietf.org/html/rfc5891), and works on nearly all JavaScript platforms.\n\nThis JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm:\n\n* [The C example code from RFC 3492](https://tools.ietf.org/html/rfc3492#appendix-C)\n* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c)\n* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c)\n* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287)\n* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072))\n\nThis project is [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with [Node.js v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc) and [io.js v1.0.0+](https://github.com/iojs/io.js/blob/v1.x/lib/punycode.js).\n\n## Installation\n\nVia [npm](https://www.npmjs.com/) (only required for Node.js releases older than v0.6.2):\n\n```bash\nnpm install punycode\n```\n\nVia [Bower](http://bower.io/):\n\n```bash\nbower install punycode\n```\n\nVia [Component](https://github.com/component/component):\n\n```bash\ncomponent install bestiejs/punycode.js\n```\n\nIn a browser:\n\n```html\n<script src=\"punycode.js\"></script>\n```\n\nIn [Node.js](https://nodejs.org/), [io.js](https://iojs.org/), [Narwhal](http://narwhaljs.org/), and [RingoJS](http://ringojs.org/):\n\n```js\nvar punycode = require('punycode');\n```\n\nIn [Rhino](http://www.mozilla.org/rhino/):\n\n```js\nload('punycode.js');\n```\n\nUsing an AMD loader like [RequireJS](http://requirejs.org/):\n\n```js\nrequire(\n {\n 'paths': {\n 'punycode': 'path/to/punycode'\n }\n },\n ['punycode'],\n function(punycode) {\n console.log(punycode);\n }\n);\n```\n\n## API\n\n### `punycode.decode(string)`\n\nConverts a Punycode string of ASCII symbols to a string of Unicode symbols.\n\n```js\n// decode domain name parts\npunycode.decode('maana-pta'); // 'mañana'\npunycode.decode('--dqo34k'); // '☃-⌘'\n```\n\n### `punycode.encode(string)`\n\nConverts a string of Unicode symbols to a Punycode string of ASCII symbols.\n\n```js\n// encode domain name parts\npunycode.encode('mañana'); // 'maana-pta'\npunycode.encode('☃-⌘'); // '--dqo34k'\n```\n\n### `punycode.toUnicode(input)`\n\nConverts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode.\n\n```js\n// decode domain names\npunycode.toUnicode('xn--maana-pta.com');\n// → 'mañana.com'\npunycode.toUnicode('xn----dqo34k.com');\n// → '☃-⌘.com'\n\n// decode email addresses\npunycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq');\n// → 'джумла@джpумлатест.bрфa'\n```\n\n### `punycode.toASCII(input)`\n\nConverts a lowercased Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that’s already in ASCII.\n\n```js\n// encode domain names\npunycode.toASCII('mañana.com');\n// → 'xn--maana-pta.com'\npunycode.toASCII('☃-⌘.com');\n// → 'xn----dqo34k.com'\n\n// encode email addresses\npunycode.toASCII('джумла@джpумлатест.bрфa');\n// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'\n```\n\n### `punycode.ucs2`\n\n#### `punycode.ucs2.decode(string)`\n\nCreates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16.\n\n```js\npunycode.ucs2.decode('abc');\n// → [0x61, 0x62, 0x63]\n// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE:\npunycode.ucs2.decode('\\uD834\\uDF06');\n// → [0x1D306]\n```\n\n#### `punycode.ucs2.encode(codePoints)`\n\nCreates a string based on an array of numeric code point values.\n\n```js\npunycode.ucs2.encode([0x61, 0x62, 0x63]);\n// → 'abc'\npunycode.ucs2.encode([0x1D306]);\n// → '\\uD834\\uDF06'\n```\n\n### `punycode.version`\n\nA string representing the current Punycode.js version number.\n\n## Unit tests & code coverage\n\nAfter cloning this repository, run `npm install --dev` to install the dependencies needed for Punycode.js development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.\n\nOnce that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, PhantomJS, and web browsers as well, use `grunt test`.\n\nTo generate the code coverage report, use `grunt cover`.\n\nFeel free to fork if you see possible improvements!\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## Contributors\n\n| [](https://twitter.com/jdalton \"Follow @jdalton on Twitter\") |\n|---|\n| [John-David Dalton](http://allyoucanleet.com/) |\n\n## License\n\nPunycode.js is available under the [MIT](https://mths.be/mit) license.\nA JSON with color names and its values. Based on http://dev.w3.org/csswg/css-color/#named-colors.\n\n[](https://nodei.co/npm/color-name/)\n\n```js\nvar colors = require('color-name');\ncolors.red //[255,0,0]\n```\n\n<a href=\"LICENSE\"><img src=\"https://upload.wikimedia.org/wikipedia/commons/0/0c/MIT_logo.svg\" width=\"120\"/></a>\n# Brorand\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# react-lifecycles-compat\n\n## What is this project?\n\nReact version 17 will deprecate several of the class component API lifecycles: `componentWillMount`, `componentWillReceiveProps`, and `componentWillUpdate`. (Read the [Update on Async rendering blog post](https://reactjs.org/blog/2018/03/27/update-on-async-rendering.html) to learn more about why.) A couple of new lifecycles are also being added to better support [async rendering mode](https://reactjs.org/blog/2018/03/01/sneak-peek-beyond-react-16.html).\n\nTypically, this type of change would require third party libraries to release a new major version in order to adhere to semver. However, the `react-lifecycles-compat` polyfill offers a way to use the new lifecycles with older versions of React as well (0.14.9+) so no breaking release is required. This enables shared libraries to support both older and newer versions of React simultaneously.\n\n## How can I use the polyfill\n\nFirst, install the polyfill from NPM:\n```sh\n# Yarn\nyarn add react-lifecycles-compat\n\n# NPM\nnpm install react-lifecycles-compat --save\n```\n\nNext, update your component and replace any of the deprecated lifecycles with new ones introduced with React 16.3. (Refer to the React docs for [examples of how to use the new lifecycles](https://reactjs.org/blog/2018/03/27/update-on-async-rendering.html).)\n\nLastly, use the polyfill to make the new lifecycles work with older versions of React:\n```js\nimport React from 'react';\nimport {polyfill} from 'react-lifecycles-compat';\n\nclass ExampleComponent extends React.Component {\n static getDerivedStateFromProps(nextProps, prevState) {\n // Normally this method would only work for React 16.3 and newer,\n // But the polyfill will make it work for older versions also!\n }\n\n getSnapshotBeforeUpdate(prevProps, prevState) {\n // Normally this method would only work for React 16.3 and newer,\n // But the polyfill will make it work for older versions also!\n }\n\n // render() and other methods ...\n}\n\n// Polyfill your component so the new lifecycles will work with older versions of React:\npolyfill(ExampleComponent);\n\nexport default ExampleComponent;\n```\n\n## Which lifecycles are supported?\n\nCurrently, this polyfill supports [static `getDerivedStateFromProps`](https://reactjs.org/docs/react-component.html#static-getderivedstatefromprops) and [`getSnapshotBeforeUpdate`](https://reactjs.org/docs/react-component.html#getsnapshotbeforeupdate)- both introduced in version 16.3.\n\n## Validation\n\nNote that in order for the polyfill to work, none of the following lifecycles can be defined by your component: `componentWillMount`, `componentWillReceiveProps`, or `componentWillUpdate`.\n\nNote also that if your component contains `getSnapshotBeforeUpdate`, `componentDidUpdate` must be defined as well.\n\nAn error will be thrown if any of the above conditions are not met.\n# PostCSS [![Gitter][chat-img]][chat]\n\n<img align=\"right\" width=\"95\" height=\"95\"\n alt=\"Philosopher’s stone, logo of PostCSS\"\n src=\"http://postcss.github.io/postcss/logo.svg\">\n\n[chat-img]: https://img.shields.io/badge/Gitter-Join_the_PostCSS_chat-brightgreen.svg\n[chat]: https://gitter.im/postcss/postcss\n\nPostCSS is a tool for transforming styles with JS plugins.\nThese plugins can lint your CSS, support variables and mixins,\ntranspile future CSS syntax, inline images, and more.\n\nPostCSS is used by industry leaders including Wikipedia, Twitter, Alibaba,\nand JetBrains. The [Autoprefixer] PostCSS plugin is one of the most popular\nCSS processors.\n\nPostCSS takes a CSS file and provides an API to analyze and modify its rules\n(by transforming them into an [Abstract Syntax Tree]).\nThis API can then be used by [plugins] to do a lot of useful things,\ne.g. to find errors automatically insert vendor prefixes.\n\n**Support / Discussion:** [Gitter](https://gitter.im/postcss/postcss)<br>\n**Twitter account:** [@postcss](https://twitter.com/postcss)<br>\n**VK.com page:** [postcss](https://vk.com/postcss)<br>\n**中文翻译**: [`README-cn.md`](./README-cn.md)\n\nFor PostCSS commercial support (consulting, improving the front-end culture\nof your company, PostCSS plugins), contact [Evil Martians]\nat <surrender@evilmartians.com>.\n\n[Abstract Syntax Tree]: https://en.wikipedia.org/wiki/Abstract_syntax_tree\n[Evil Martians]: https://evilmartians.com/?utm_source=postcss\n[Autoprefixer]: https://github.com/postcss/autoprefixer\n[plugins]: https://github.com/postcss/postcss#plugins\n\n<a href=\"https://evilmartians.com/?utm_source=postcss\">\n <img src=\"https://evilmartians.com/badges/sponsored-by-evil-martians.svg\"\n alt=\"Sponsored by Evil Martians\" width=\"236\" height=\"54\">\n</a>\n\n## Plugins\n\nCurrently, PostCSS has more than 200 plugins. You can find all of the plugins\nin the [plugins list] or in the [searchable catalog]. Below is a list\nof our favorite plugins — the best demonstrations of what can be built\non top of PostCSS.\n\nIf you have any new ideas, [PostCSS plugin development] is really easy.\n\n[searchable catalog]: http://postcss.parts\n[plugins list]: https://github.com/postcss/postcss/blob/master/docs/plugins.md\n\n### Solve Global CSS Problem\n\n* [`postcss-use`] allows you to explicitly set PostCSS plugins within CSS\n and execute them only for the current file.\n* [`postcss-modules`] and [`react-css-modules`] automatically isolate\n selectors within components.\n* [`postcss-autoreset`] is an alternative to using a global reset\n that is better for isolatable components.\n* [`postcss-initial`] adds `all: initial` support, which resets\n all inherited styles.\n* [`cq-prolyfill`] adds container query support, allowing styles that respond\n to the width of the parent.\n\n### Use Future CSS, Today\n\n* [`autoprefixer`] adds vendor prefixes, using data from Can I Use.\n* [`postcss-preset-env`] allows you to use future CSS features today.\n\n### Better CSS Readability\n\n* [`precss`] contains plugins for Sass-like features, like variables, nesting,\n and mixins.\n* [`postcss-sorting`] sorts the content of rules and at-rules.\n* [`postcss-utilities`] includes the most commonly used shortcuts and helpers.\n* [`short`] adds and extends numerous shorthand properties.\n\n### Images and Fonts\n\n* [`postcss-assets`] inserts image dimensions and inlines files.\n* [`postcss-sprites`] generates image sprites.\n* [`font-magician`] generates all the `@font-face` rules needed in CSS.\n* [`postcss-inline-svg`] allows you to inline SVG and customize its styles.\n* [`postcss-write-svg`] allows you to write simple SVG directly in your CSS.\n\n### Linters\n\n* [`stylelint`] is a modular stylesheet linter.\n* [`stylefmt`] is a tool that automatically formats CSS\n according `stylelint` rules.\n* [`doiuse`] lints CSS for browser support, using data from Can I Use.\n* [`colorguard`] helps you maintain a consistent color palette.\n\n### Other\n\n* [`postcss-rtl`] combines both-directional (left-to-right and right-to-left) styles in one CSS file.\n* [`cssnano`] is a modular CSS minifier.\n* [`lost`] is a feature-rich `calc()` grid system.\n* [`rtlcss`] mirrors styles for right-to-left locales.\n\n[PostCSS plugin development]: https://github.com/postcss/postcss/blob/master/docs/writing-a-plugin.md\n[`postcss-inline-svg`]: https://github.com/TrySound/postcss-inline-svg\n[`postcss-preset-env`]: https://github.com/jonathantneal/postcss-preset-env\n[`react-css-modules`]: https://github.com/gajus/react-css-modules\n[`postcss-autoreset`]: https://github.com/maximkoretskiy/postcss-autoreset\n[`postcss-write-svg`]: https://github.com/jonathantneal/postcss-write-svg\n[`postcss-utilities`]: https://github.com/ismamz/postcss-utilities\n[`postcss-initial`]: https://github.com/maximkoretskiy/postcss-initial\n[`postcss-sprites`]: https://github.com/2createStudio/postcss-sprites\n[`postcss-modules`]: https://github.com/outpunk/postcss-modules\n[`postcss-sorting`]: https://github.com/hudochenkov/postcss-sorting\n[`postcss-assets`]: https://github.com/assetsjs/postcss-assets\n[`font-magician`]: https://github.com/jonathantneal/postcss-font-magician\n[`autoprefixer`]: https://github.com/postcss/autoprefixer\n[`cq-prolyfill`]: https://github.com/ausi/cq-prolyfill\n[`postcss-rtl`]: https://github.com/vkalinichev/postcss-rtl\n[`postcss-use`]: https://github.com/postcss/postcss-use\n[`css-modules`]: https://github.com/css-modules/css-modules\n[`colorguard`]: https://github.com/SlexAxton/css-colorguard\n[`stylelint`]: https://github.com/stylelint/stylelint\n[`stylefmt`]: https://github.com/morishitter/stylefmt\n[`cssnano`]: http://cssnano.co\n[`precss`]: https://github.com/jonathantneal/precss\n[`doiuse`]: https://github.com/anandthakker/doiuse\n[`rtlcss`]: https://github.com/MohammadYounes/rtlcss\n[`short`]: https://github.com/jonathantneal/postcss-short\n[`lost`]: https://github.com/peterramsing/lost\n\n## Syntaxes\n\nPostCSS can transform styles in any syntax, not just CSS.\nIf there is not yet support for your favorite syntax,\nyou can write a parser and/or stringifier to extend PostCSS.\n\n* [`sugarss`] is a indent-based syntax like Sass or Stylus.\n* [`postcss-syntax`] switch syntax automatically by file extensions.\n* [`postcss-html`] parsing styles in `<style>` tags of HTML-like files.\n* [`postcss-markdown`] parsing styles in code blocks of Markdown files.\n* [`postcss-jsx`] parsing CSS in template / object literals of source files.\n* [`postcss-styled`] parsing CSS in template literals of source files.\n* [`postcss-scss`] allows you to work with SCSS\n *(but does not compile SCSS to CSS)*.\n* [`postcss-sass`] allows you to work with Sass\n *(but does not compile Sass to CSS)*.\n* [`postcss-less`] allows you to work with Less\n *(but does not compile LESS to CSS)*.\n* [`postcss-less-engine`] allows you to work with Less\n *(and DOES compile LESS to CSS using true Less.js evaluation)*.\n* [`postcss-js`] allows you to write styles in JS or transform\n React Inline Styles, Radium or JSS.\n* [`postcss-safe-parser`] finds and fixes CSS syntax errors.\n* [`midas`] converts a CSS string to highlighted HTML.\n\n[`postcss-less-engine`]: https://github.com/Crunch/postcss-less\n[`postcss-safe-parser`]: https://github.com/postcss/postcss-safe-parser\n[`postcss-syntax`]: https://github.com/gucong3000/postcss-syntax\n[`postcss-html`]: https://github.com/gucong3000/postcss-html\n[`postcss-markdown`]: https://github.com/gucong3000/postcss-markdown\n[`postcss-jsx`]: https://github.com/gucong3000/postcss-jsx\n[`postcss-styled`]: https://github.com/gucong3000/postcss-styled\n[`postcss-scss`]: https://github.com/postcss/postcss-scss\n[`postcss-sass`]: https://github.com/AleshaOleg/postcss-sass\n[`postcss-less`]: https://github.com/webschik/postcss-less\n[`postcss-js`]: https://github.com/postcss/postcss-js\n[`sugarss`]: https://github.com/postcss/sugarss\n[`midas`]: https://github.com/ben-eb/midas\n\n## Articles\n\n* [Some things you may think about PostCSS… and you might be wrong](http://julian.io/some-things-you-may-think-about-postcss-and-you-might-be-wrong)\n* [What PostCSS Really Is; What It Really Does](http://davidtheclark.com/its-time-for-everyone-to-learn-about-postcss)\n* [PostCSS Guides](http://webdesign.tutsplus.com/series/postcss-deep-dive--cms-889)\n\nMore articles and videos you can find on [awesome-postcss](https://github.com/jjaderg/awesome-postcss) list.\n\n## Books\n\n* [Mastering PostCSS for Web Design](https://www.packtpub.com/web-development/mastering-postcss-web-design) by Alex Libby, Packt. (June 2016)\n\n## Usage\n\nYou can start using PostCSS in just two steps:\n\n1. Find and add PostCSS extensions for your build tool.\n2. [Select plugins] and add them to your PostCSS process.\n\n[Select plugins]: http://postcss.parts\n\n### Webpack\n\nUse [`postcss-loader`] in `webpack.config.js`:\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n exclude: /node_modules/,\n use: [\n {\n loader: 'style-loader',\n },\n {\n loader: 'css-loader',\n options: {\n importLoaders: 1,\n }\n },\n {\n loader: 'postcss-loader'\n }\n ]\n }\n ]\n }\n}\n```\n\nThen create `postcss.config.js`:\n\n```js\nmodule.exports = {\n plugins: [\n require('precss'),\n require('autoprefixer')\n ]\n}\n```\n\n[`postcss-loader`]: https://github.com/postcss/postcss-loader\n\n### CSS-in-JS\n\nThe best way to use PostCSS with CSS-in-JS is [`astroturf`].\nAdd its loader to your `webpack.config.js`:\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: ['style-loader', 'postcss-loader'],\n },\n {\n test: /\\.jsx?$/,\n use: ['babel-loader', 'astroturf/loader'],\n }\n ]\n }\n}\n```\n\nThen create `postcss.config.js`:\n\n```js\nmodule.exports = {\n plugins: [\n require('autoprefixer'),\n require('postcss-nested')\n ]\n}\n```\n\n[`astroturf`]: https://github.com/4Catalyzer/astroturf\n\n### Gulp\n\nUse [`gulp-postcss`] and [`gulp-sourcemaps`].\n\n```js\ngulp.task('css', () => {\n const postcss = require('gulp-postcss')\n const sourcemaps = require('gulp-sourcemaps')\n\n return gulp.src('src/**/*.css')\n .pipe( sourcemaps.init() )\n .pipe( postcss([ require('precss'), require('autoprefixer') ]) )\n .pipe( sourcemaps.write('.') )\n .pipe( gulp.dest('build/') )\n})\n```\n\n[`gulp-sourcemaps`]: https://github.com/floridoo/gulp-sourcemaps\n[`gulp-postcss`]: https://github.com/postcss/gulp-postcss\n\n### npm run / CLI\n\nTo use PostCSS from your command-line interface or with npm scripts\nthere is [`postcss-cli`].\n\n```sh\npostcss --use autoprefixer -c options.json -o main.css css/*.css\n```\n\n[`postcss-cli`]: https://github.com/postcss/postcss-cli\n\n### Browser\n\nIf you want to compile CSS string in browser (for instance, in live edit\ntools like CodePen), just use [Browserify] or [webpack]. They will pack\nPostCSS and plugins files into a single file.\n\nTo apply PostCSS plugins to React Inline Styles, JSS, Radium\nand other [CSS-in-JS], you can use [`postcss-js`] and transforms style objects.\n\n```js\nvar postcss = require('postcss-js')\nvar prefixer = postcss.sync([ require('autoprefixer') ])\n\nprefixer({ display: 'flex' }) //=> { display: ['-webkit-box', '-webkit-flex', '-ms-flexbox', 'flex'] }\n```\n\n[`postcss-js`]: https://github.com/postcss/postcss-js\n[Browserify]: http://browserify.org/\n[CSS-in-JS]: https://github.com/MicheleBertoli/css-in-js\n[webpack]: https://webpack.github.io/\n\n### Runners\n\n* **Grunt**: [`grunt-postcss`](https://github.com/nDmitry/grunt-postcss)\n* **HTML**: [`posthtml-postcss`](https://github.com/posthtml/posthtml-postcss)\n* **Stylus**: [`poststylus`](https://github.com/seaneking/poststylus)\n* **Rollup**: [`rollup-plugin-postcss`](https://github.com/egoist/rollup-plugin-postcss)\n* **Brunch**: [`postcss-brunch`](https://github.com/brunch/postcss-brunch)\n* **Broccoli**: [`broccoli-postcss`](https://github.com/jeffjewiss/broccoli-postcss)\n* **Meteor**: [`postcss`](https://atmospherejs.com/juliancwirko/postcss)\n* **ENB**: [`enb-postcss`](https://github.com/awinogradov/enb-postcss)\n* **Taskr**: [`taskr-postcss`](https://github.com/lukeed/taskr/tree/master/packages/postcss)\n* **Start**: [`start-postcss`](https://github.com/start-runner/postcss)\n* **Connect/Express**: [`postcss-middleware`](https://github.com/jedmao/postcss-middleware)\n\n### JS API\n\nFor other environments, you can use the JS API:\n\n```js\nconst autoprefixer = require('autoprefixer')\nconst postcss = require('postcss')\nconst precss = require('precss')\nconst fs = require('fs')\n\nfs.readFile('src/app.css', (err, css) => {\n postcss([precss, autoprefixer])\n .process(css, { from: 'src/app.css', to: 'dest/app.css' })\n .then(result => {\n fs.writeFile('dest/app.css', result.css, () => true)\n if ( result.map ) {\n fs.writeFile('dest/app.css.map', result.map, () => true)\n }\n })\n})\n```\n\nRead the [PostCSS API documentation] for more details about the JS API.\n\nAll PostCSS runners should pass [PostCSS Runner Guidelines].\n\n[PostCSS Runner Guidelines]: https://github.com/postcss/postcss/blob/master/docs/guidelines/runner.md\n[PostCSS API documentation]: http://api.postcss.org/postcss.html\n\n### Options\n\nMost PostCSS runners accept two parameters:\n\n* An array of plugins.\n* An object of options.\n\nCommon options:\n\n* `syntax`: an object providing a syntax parser and a stringifier.\n* `parser`: a special syntax parser (for example, [SCSS]).\n* `stringifier`: a special syntax output generator (for example, [Midas]).\n* `map`: [source map options].\n* `from`: the input file name (most runners set it automatically).\n* `to`: the output file name (most runners set it automatically).\n\n[source map options]: https://github.com/postcss/postcss/blob/master/docs/source-maps.md\n[Midas]: https://github.com/ben-eb/midas\n[SCSS]: https://github.com/postcss/postcss-scss\n\n### Treat Warnings as Errors\n\nIn some situations it might be helpful to fail the build on any warning\nfrom PostCSS or one of its plugins. This guarantees that no warnings\ngo unnoticed, and helps to avoid bugs. While there is no option to enable\ntreating warnings as errors, it can easily be done\nby adding `postcss-fail-on-warn` plugin in the end of PostCSS plugins:\n\n```js\nmodule.exports = {\n plugins: [\n require('autoprefixer'),\n require('postcss-fail-on-warn')\n ]\n}\n```\n\n## Editors & IDE Integration\n\n### Atom\n\n* [`language-postcss`] adds PostCSS and [SugarSS] highlight.\n* [`source-preview-postcss`] previews your output CSS in a separate, live pane.\n\n[SugarSS]: https://github.com/postcss/sugarss\n\n### Sublime Text\n\n* [`Syntax-highlighting-for-PostCSS`] adds PostCSS highlight.\n\n[`Syntax-highlighting-for-PostCSS`]: https://github.com/hudochenkov/Syntax-highlighting-for-PostCSS\n[`source-preview-postcss`]: https://atom.io/packages/source-preview-postcss\n[`language-postcss`]: https://atom.io/packages/language-postcss\n\n### Vim\n\n* [`postcss.vim`] adds PostCSS highlight.\n\n[`postcss.vim`]: https://github.com/stephenway/postcss.vim\n\n### WebStorm\n\nWebStorm 2016.3 [has] built-in PostCSS support.\n\n[has]: https://blog.jetbrains.com/webstorm/2016/08/webstorm-2016-3-early-access-preview/\n# to-object-path [](http://badge.fury.io/js/to-object-path)\n\n> Create an object path from a list or array of strings.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i to-object-path --save\n```\n\n## Usage\n\n```js\nvar toPath = require('to-object-path');\n\ntoPath('foo', 'bar', 'baz');\ntoPath('foo', ['bar', 'baz']);\n//=> 'foo.bar.baz'\n```\n\nAlso supports passing an arguments object (without having to slice args):\n\n```js\nfunction foo()\n return toPath(arguments);\n}\n\nfoo('foo', 'bar', 'baz');\nfoo('foo', ['bar', 'baz']);\n//=> 'foo.bar.baz'\n```\n\nVisit the [example](./example.js) to see how this could be used in an application.\n\n## Related projects\n\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (` a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value)\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://www.npmjs.com/package/has-value) | [homepage](https://github.com/jonschlinkert/has-value)\n* [omit-value](https://www.npmjs.com/package/omit-value): Omit properties from an object or deeply nested property of an object using object path… [more](https://www.npmjs.com/package/omit-value) | [homepage](https://github.com/jonschlinkert/omit-value)\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value)\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/to-object-path/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on October 28, 2015._\n# object-visit [](https://www.npmjs.com/package/object-visit) [](https://npmjs.org/package/object-visit) [](https://npmjs.org/package/object-visit) [](https://travis-ci.org/jonschlinkert/object-visit)\n\n> Call a specified method on each value in the given object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save object-visit\n```\n\n## Usage\n\n```js\nvar visit = require('object-visit');\n\nvar ctx = {\n data: {},\n set: function (key, value) {\n if (typeof key === 'object') {\n visit(ctx, 'set', key);\n } else {\n ctx.data[key] = value;\n }\n }\n};\n\nctx.set('a', 'a');\nctx.set('b', 'b');\nctx.set('c', 'c');\nctx.set({d: {e: 'f'}});\n\nconsole.log(ctx.data);\n//=> {a: 'a', b: 'b', c: 'c', d: { e: 'f' }};\n```\n\n## About\n\n### Related projects\n\n* [base-methods](https://www.npmjs.com/package/base-methods): base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/jonschlinkert/base-methods) | [homepage](https://github.com/jonschlinkert/base-methods \"base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [collection-visit](https://www.npmjs.com/package/collection-visit): Visit a method over the items in an object, or map visit over the objects… [more](https://github.com/jonschlinkert/collection-visit) | [homepage](https://github.com/jonschlinkert/collection-visit \"Visit a method over the items in an object, or map visit over the objects in an array.\")\n* [define-property](https://www.npmjs.com/package/define-property): Define a non-enumerable property on an object. | [homepage](https://github.com/jonschlinkert/define-property \"Define a non-enumerable property on an object.\")\n* [map-visit](https://www.npmjs.com/package/map-visit): Map `visit` over an array of objects. | [homepage](https://github.com/jonschlinkert/map-visit \"Map `visit` over an array of objects.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 30, 2017._\n<p align=\"center\">\n <a href=\"http://gulpjs.com\">\n <img height=\"257\" width=\"114\" src=\"https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png\">\n </a>\n</p>\n\n# interpret\n\n[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Travis Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]\n\nA dictionary of file extensions and associated module loaders.\n\n## What is it\nThis is used by [Liftoff](http://github.com/tkellen/node-liftoff) to automatically require dependencies for configuration files, and by [rechoir](http://github.com/tkellen/node-rechoir) for registering module loaders.\n\n## API\n\n### extensions\nMap file types to modules which provide a [require.extensions] loader.\n\n```js\n{\n '.babel.js': [\n {\n module: '@babel/register',\n register: function(hook) {\n // register on .js extension due to https://github.com/joyent/node/blob/v0.12.0/lib/module.js#L353\n // which only captures the final extension (.babel.js -> .js)\n hook({ extensions: '.js' });\n },\n },\n {\n module: 'babel-register',\n register: function(hook) {\n hook({ extensions: '.js' });\n },\n },\n {\n module: 'babel-core/register',\n register: function(hook) {\n hook({ extensions: '.js' });\n },\n },\n {\n module: 'babel/register',\n register: function(hook) {\n hook({ extensions: '.js' });\n },\n },\n ],\n '.babel.ts': [\n {\n module: '@babel/register',\n register: function(hook) {\n hook({ extensions: '.ts' });\n },\n },\n ],\n '.buble.js': 'buble/register',\n '.cirru': 'cirru-script/lib/register',\n '.cjsx': 'node-cjsx/register',\n '.co': 'coco',\n '.coffee': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],\n '.coffee.md': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],\n '.csv': 'require-csv',\n '.eg': 'earlgrey/register',\n '.esm.js': {\n module: 'esm',\n register: function(hook) {\n // register on .js extension due to https://github.com/joyent/node/blob/v0.12.0/lib/module.js#L353\n // which only captures the final extension (.babel.js -> .js)\n var esmLoader = hook(module);\n require.extensions['.js'] = esmLoader('module')._extensions['.js'];\n },\n },\n '.iced': ['iced-coffee-script/register', 'iced-coffee-script'],\n '.iced.md': 'iced-coffee-script/register',\n '.ini': 'require-ini',\n '.js': null,\n '.json': null,\n '.json5': 'json5/lib/require',\n '.jsx': [\n {\n module: '@babel/register',\n register: function(hook) {\n hook({ extensions: '.jsx' });\n },\n },\n {\n module: 'babel-register',\n register: function(hook) {\n hook({ extensions: '.jsx' });\n },\n },\n {\n module: 'babel-core/register',\n register: function(hook) {\n hook({ extensions: '.jsx' });\n },\n },\n {\n module: 'babel/register',\n register: function(hook) {\n hook({ extensions: '.jsx' });\n },\n },\n {\n module: 'node-jsx',\n register: function(hook) {\n hook.install({ extension: '.jsx', harmony: true });\n },\n },\n ],\n '.litcoffee': ['coffeescript/register', 'coffee-script/register', 'coffeescript', 'coffee-script'],\n '.liticed': 'iced-coffee-script/register',\n '.ls': ['livescript', 'LiveScript'],\n '.node': null,\n '.toml': {\n module: 'toml-require',\n register: function(hook) {\n hook.install();\n },\n },\n '.ts': [\n 'ts-node/register',\n 'typescript-node/register',\n 'typescript-register',\n 'typescript-require',\n {\n module: '@babel/register',\n register: function(hook) {\n hook({ extensions: '.ts' });\n },\n },\n ],\n '.tsx': [\n 'ts-node/register',\n 'typescript-node/register',\n {\n module: '@babel/register',\n register: function(hook) {\n hook({ extensions: '.tsx' });\n },\n },\n ],\n '.wisp': 'wisp/engine/node',\n '.xml': 'require-xml',\n '.yaml': 'require-yaml',\n '.yml': 'require-yaml',\n}\n```\n\n### jsVariants\nSame as above, but only include the extensions which are javascript variants.\n\n## How to use it\n\nConsumers should use the exported `extensions` or `jsVariants` object to determine which module should be loaded for a given extension. If a matching extension is found, consumers should do the following:\n\n1. If the value is null, do nothing.\n\n2. If the value is a string, try to require it.\n\n3. If the value is an object, try to require the `module` property. If successful, the `register` property (a function) should be called with the module passed as the first argument.\n\n4. If the value is an array, iterate over it, attempting step #2 or #3 until one of the attempts does not throw.\n\n[require.extensions]: http://nodejs.org/api/globals.html#globals_require_extensions\n\n[downloads-image]: http://img.shields.io/npm/dm/interpret.svg\n[npm-url]: https://www.npmjs.com/package/interpret\n[npm-image]: http://img.shields.io/npm/v/interpret.svg\n\n[travis-url]: https://travis-ci.org/gulpjs/interpret\n[travis-image]: http://img.shields.io/travis/gulpjs/interpret.svg?label=travis-ci\n\n[appveyor-url]: https://ci.appveyor.com/project/gulpjs/interpret\n[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/interpret.svg?label=appveyor\n\n[coveralls-url]: https://coveralls.io/r/gulpjs/interpret\n[coveralls-image]: http://img.shields.io/coveralls/gulpjs/interpret/master.svg\n\n[gitter-url]: https://gitter.im/gulpjs/gulp\n[gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg\n# arr-flatten [](https://www.npmjs.com/package/arr-flatten) [](https://npmjs.org/package/arr-flatten) [](https://npmjs.org/package/arr-flatten) [](https://travis-ci.org/jonschlinkert/arr-flatten) [](https://ci.appveyor.com/project/jonschlinkert/arr-flatten)\n\n> Recursively flatten an array or arrays.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save arr-flatten\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install arr-flatten --save\n```\n\n## Usage\n\n```js\nvar flatten = require('arr-flatten');\n\nflatten(['a', ['b', ['c']], 'd', ['e']]);\n//=> ['a', 'b', 'c', 'd', 'e']\n```\n\n## Why another flatten utility?\n\nI wanted the fastest implementation I could find, with implementation choices that should work for 95% of use cases, but no cruft to cover the other 5%.\n\n## About\n\n### Related projects\n\n* [arr-filter](https://www.npmjs.com/package/arr-filter): Faster alternative to javascript's native filter method. | [homepage](https://github.com/jonschlinkert/arr-filter \"Faster alternative to javascript's native filter method.\")\n* [arr-union](https://www.npmjs.com/package/arr-union): Combines a list of arrays, returning a single array with unique values, using strict equality… [more](https://github.com/jonschlinkert/arr-union) | [homepage](https://github.com/jonschlinkert/arr-union \"Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.\")\n* [array-each](https://www.npmjs.com/package/array-each): Loop over each item in an array and call the given function on every element. | [homepage](https://github.com/jonschlinkert/array-each \"Loop over each item in an array and call the given function on every element.\")\n* [array-unique](https://www.npmjs.com/package/array-unique): Remove duplicate values from an array. Fastest ES5 implementation. | [homepage](https://github.com/jonschlinkert/array-unique \"Remove duplicate values from an array. Fastest ES5 implementation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 20 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [lukeed](https://github.com/lukeed) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 05, 2017._\nNeedle\n======\n\n[](https://nodei.co/npm/needle/)\n\nThe leanest and most handsome HTTP client in the Nodelands.\n\n```js\nvar needle = require('needle');\n\nneedle.get('http://www.google.com', function(error, response) {\n if (!error && response.statusCode == 200)\n console.log(response.body);\n});\n```\n\nCallbacks not floating your boat? Needle got your back.\n\n``` js\nvar data = {\n file: '/home/johnlennon/walrus.png',\n content_type: 'image/png'\n};\n\n// the callback is optional, and needle returns a `readableStream` object\n// that triggers a 'done' event when the request/response process is complete.\nneedle\n .post('https://my.server.com/foo', data, { multipart: true })\n .on('readable', function() { /* eat your chunks */ })\n .on('done', function(err, resp) {\n console.log('Ready-o!');\n })\n```\n\nFrom version 2.0.x up, Promises are also supported. Just call `needle()` directly and you'll get a native Promise object.\n\n```js\nneedle('put', 'https://hacking.the.gibson/login', { password: 'god' }, { json: true })\n .then(function(response) {\n return doSomethingWith(response)\n })\n .catch(function(err) {\n console.log('Call the locksmith!')\n })\n```\n\nWith only two real dependencies, Needle supports:\n\n - HTTP/HTTPS requests, with the usual verbs you would expect\n - All of Node's native TLS options, such as 'rejectUnauthorized' (see below)\n - Basic & Digest authentication with auto-detection\n - Multipart form-data (e.g. file uploads)\n - HTTP Proxy forwarding, optionally with authentication\n - Streaming gzip or deflate decompression\n - Automatic XML & JSON parsing\n - 301/302/303 redirect following, with fine-grained tuning, and\n - Streaming non-UTF-8 charset decoding, via `iconv-lite`\n\nAnd yes, Mr. Wayne, it does come in black.\n\nThis makes Needle an ideal alternative for performing quick HTTP requests in Node, either for API interaction, downloading or uploading streams of data, and so on. If you need OAuth, AWS support or anything fancier, you should check out mikeal's request module.\n\nInstall\n-------\n\n```\n$ npm install needle\n```\n\nUsage\n-----\n\n```js\n// using promises\nneedle('get', 'https://server.com/posts/12')\n .then(function(resp) {\n // ...\n })\n .catch(function(err) {\n // ...\n })\n});\n\n// with callback\nneedle.get('ifconfig.me/all.json', function(error, response, body) {\n if (error) throw error;\n\n // body is an alias for `response.body`,\n // that in this case holds a JSON-decoded object.\n console.log(body.ip_addr);\n});\n\n// no callback, using streams\nvar out = fs.createWriteStream('logo.png');\nneedle.get('https://google.com/images/logo.png').pipe(out).on('finish', function() {\n console.log('Pipe finished!');\n});\n```\n\nAs you can see, you can use Needle with Promises or without them. When using Promises or when a callback is passed, the response's body will be buffered and written to `response.body`, and the callback will be fired when all of the data has been collected and processed (e.g. decompressed, decoded and/or parsed).\n\nWhen no callback is passed, however, the buffering logic will be skipped but the response stream will still go through Needle's processing pipeline, so you get all the benefits of post-processing while keeping the streamishness we all love from Node.\n\nResponse pipeline\n-----------------\n\nDepending on the response's Content-Type, Needle will either attempt to parse JSON or XML streams, or, if a text response was received, will ensure that the final encoding you get is UTF-8.\n\nYou can also request a gzip/deflated response, which, if sent by the server, will be processed before parsing or decoding is performed.\n\n```js\nneedle.get('http://stackoverflow.com/feeds', { compressed: true }, function(err, resp) {\n console.log(resp.body); // this little guy won't be a Gzipped binary blob\n // but a nice object containing all the latest entries\n});\n```\n\nOr in anti-callback mode, using a few other options:\n\n```js\nvar options = {\n compressed : true, // sets 'Accept-Encoding' to 'gzip,deflate'\n follow_max : 5, // follow up to five redirects\n rejectUnauthorized : true // verify SSL certificate\n}\n\nvar stream = needle.get('https://backend.server.com/everything.html', options);\n\n// read the chunks from the 'readable' event, so the stream gets consumed.\nstream.on('readable', function() {\n while (data = this.read()) {\n console.log(data.toString());\n }\n})\n\nstream.on('done', function(err) {\n // if our request had an error, our 'done' event will tell us.\n if (!err) console.log('Great success!');\n})\n```\n\nAPI\n---\n\n### needle(method, url[, data][, options][, callback]) `(> 2.0.x)`\n\nCalling `needle()` directly returns a Promise. Besides `method` and `url`, all parameters are optional, although when sending a `post`, `put` or `patch` request you will get an error if `data` is not present.\n\n```js\nneedle('get', 'http://some.url.com')\n .then(function(resp) { console.log(resp.body) })\n .catch(function(err) { console.error(err) })\n})\n```\n\nExcept from the above, all of Needle's request methods return a Readable stream, and both `options` and `callback` are optional. If passed, the callback will return three arguments: `error`, `response` and `body`, which is basically an alias for `response.body`.\n\n### needle.head(url[, options][, callback])\n\n```js\nneedle.head('https://my.backend.server.com', {\n open_timeout: 5000 // if we're not able to open a connection in 5 seconds, boom.\n}, function(err, resp) {\n if (err)\n console.log('Shoot! Something is wrong: ' + err.message)\n else\n console.log('Yup, still alive.')\n})\n```\n\n### needle.get(url[, options][, callback])\n\n```js\nneedle.get('google.com/search?q=syd+barrett', function(err, resp) {\n // if no http:// is found, Needle will automagically prepend it.\n});\n```\n\n### needle.post(url, data[, options][, callback])\n\n```js\nvar options = {\n headers: { 'X-Custom-Header': 'Bumbaway atuna' }\n}\n\nneedle.post('https://my.app.com/endpoint', 'foo=bar', options, function(err, resp) {\n // you can pass params as a string or as an object.\n});\n```\n\n### needle.put(url, data[, options][, callback])\n\n```js\nvar nested = {\n params: {\n are: {\n also: 'supported'\n }\n }\n}\n\nneedle.put('https://api.app.com/v2', nested, function(err, resp) {\n console.log('Got ' + resp.bytes + ' bytes.') // another nice treat from this handsome fella.\n});\n```\n\n### needle.patch(url, data[, options][, callback])\n\nSame behaviour as PUT.\n\n### needle.delete(url, data[, options][, callback])\n\n```js\nvar options = {\n username: 'fidelio',\n password: 'x'\n}\n\nneedle.delete('https://api.app.com/messages/123', null, options, function(err, resp) {\n // in this case, data may be null, but you need to explicity pass it.\n});\n```\n\n### needle.request(method, url, data[, options][, callback])\n\nGeneric request. This not only allows for flexibility, but also lets you perform a GET request with data, in which case will be appended to the request as a query string, unless you pass a `json: true` option (read below).\n\n```js\nvar params = {\n q : 'a very smart query',\n page : 2\n}\n\nneedle.request('get', 'forum.com/search', params, function(err, resp) {\n if (!err && resp.statusCode == 200)\n console.log(resp.body); // here you go, mister.\n});\n```\n\nNow, if you set pass `json: true` among the options, Needle won't set your params as a querystring but instead send a JSON representation of your data through the request's body, as well as set the `Content-Type` and `Accept` headers to `application/json`.\n\n```js\nneedle.request('get', 'forum.com/search', params, { json: true }, function(err, resp) {\n if (resp.statusCode == 200) console.log('It worked!');\n});\n```\n\nEvents\n------\n\nThe [Readable stream](https://nodejs.org/api/stream.html#stream_class_stream_readable) object returned by the above request methods emits the following events, in addition to the regular ones (e.g. `end`, `close`, `data`, `pipe`, `readable`).\n\n### Event: `'response'`\n\n - `response <http.IncomingMessage>`\n\nEmitted when the underlying [http.ClientRequest](https://nodejs.org/api/http.html#http_class_http_clientrequest) emits a response event. This is after the connection is established and the header received, but before any of it is processed (e.g. authorization required or redirect to be followed). No data has been consumed at this point.\n\n### Event: `'redirect'`\n\n - `location <String>`\n\nIndicates that the a redirect is being followed. This means that the response code was a redirect (`301`, `302`, `303`, `307`) and the given [redirect options](#redirect-options) allowed following the URL received in the `Location` header.\n\n### Event: `'header'`\n\n - `statusCode <Integer>`\n - `headers <Object>`\n\nTriggered after the header has been processed, and just before the data is to be consumed. This implies that no redirect was followed and/or authentication header was received. In other words, we got a \"valid\" response.\n\n### Event: `'done'` (previously 'end')\n\n - `exception <Error>` (optional)\n\nEmitted when the request/response process has finished, either because all data was consumed or an error ocurred somewhere in between. Unlike a regular stream's `end` event, Needle's `done` will be fired either on success or on failure, which is why the first argument may be an Error object. In other words:\n\n```js\nvar resp = needle.get('something.worthy/of/being/streamed/by/needle');\nresp.pipe(someWritableStream);\n\nresp.on('done', function(err) {\n if (err) console.log('An error ocurred: ' + err.message);\n else console.log('Great success!');\n})\n```\n\n### Event: `'err'`\n\n - `exception <Error>`\n\nEmitted when an error ocurrs. This should only happen once in the lifecycle of a Needle request.\n\n### Event: `'timeout'`\n\n - `type <String>`\n\nEmitted when an timeout error occurs. Type can be either 'open', 'response', or 'read'. This will called right before aborting the request, which will also trigger an `err` event, a described above, with an `ECONNRESET` (Socket hang up) exception.\n\nRequest options\n---------------\n\nFor information about options that've changed, there's always [the changelog](https://github.com/tomas/needle/releases).\n\n - `agent` : Uses an [http.Agent](https://nodejs.org/api/http.html#http_class_http_agent) of your choice, instead of the global, default one. Useful for tweaking the behaviour at the connection level, such as when doing tunneling (see below for an example).\n - `json` : When `true`, sets content type to `application/json` and sends request body as JSON string, instead of a query string.\n - `open_timeout`: (or `timeout`) Returns error if connection takes longer than X milisecs to establish. Defaults to `10000` (10 secs). `0` means no timeout.\n - `response_timeout`: Returns error if no response headers are received in X milisecs, counting from when the connection is opened. Defaults to `0` (no response timeout).\n - `read_timeout`: Returns error if data transfer takes longer than X milisecs, once response headers are received. Defaults to `0` (no timeout).\n - `follow_max` : (or `follow`) Number of redirects to follow. Defaults to `0`. See below for more redirect options.\n - `multipart` : Enables multipart/form-data encoding. Defaults to `false`. Use it when uploading files.\n - `proxy` : Forwards request through HTTP(s) proxy. Eg. `proxy: 'http://user:pass@proxy.server.com:3128'`. For more advanced proxying/tunneling use a custom `agent`, as described below.\n - `headers` : Object containing custom HTTP headers for request. Overrides defaults described below.\n - `auth` : Determines what to do with provided username/password. Options are `auto`, `digest` or `basic` (default). `auto` will detect the type of authentication depending on the response headers.\n - `stream_length`: When sending streams, this lets you manually set the Content-Length header --if the stream's bytecount is known beforehand--, preventing ECONNRESET (socket hang up) errors on some servers that misbehave when receiving payloads of unknown size. Set it to `0` and Needle will get and set the stream's length for you, or leave unset for the default behaviour, which is no Content-Length header for stream payloads.\n - `localAddress` : <string>, IP address. Passed to http/https request. Local interface from witch the request should be emitted.\n\nResponse options\n----------------\n\n - `decode_response` : (or `decode`) Whether to decode the text responses to UTF-8, if Content-Type header shows a different charset. Defaults to `true`.\n - `parse_response` : (or `parse`) Whether to parse XML or JSON response bodies automagically. Defaults to `true`. You can also set this to 'xml' or 'json' in which case Needle will *only* parse the response if the content type matches.\n - `output` : Dump response output to file. This occurs after parsing and charset decoding is done.\n - `parse_cookies` : Whether to parse response’s `Set-Cookie` header. Defaults to `true`. If parsed, response cookies will be available at `resp.cookies`.\n\nHTTP Header options\n-------------------\n\nThese are basically shortcuts to the `headers` option described above.\n\n - `cookies` : Builds and sets a Cookie header from a `{ key: 'value' }` object.\n - `compressed`: If `true`, sets 'Accept-Encoding' header to 'gzip,deflate', and inflates content if zipped. Defaults to `false`.\n - `username` : For HTTP basic auth.\n - `password` : For HTTP basic auth. Requires username to be passed, but is optional.\n - `accept` : Sets 'Accept' HTTP header. Defaults to `*/*`.\n - `connection`: Sets 'Connection' HTTP header. Not set by default, unless running Node < 0.11.4 in which case it defaults to `close`. More info about this below.\n - `user_agent`: Sets the 'User-Agent' HTTP header. Defaults to `Needle/{version} (Node.js {node_version})`.\n - `content_type`: Sets the 'Content-Type' header. Unset by default, unless you're sending data in which case it's set accordingly to whatever is being sent (`application/x-www-form-urlencoded`, `application/json` or `multipart/form-data`). That is, of course, unless the option is passed, either here or through `options.headers`. You're the boss.\n\nNode.js TLS Options\n-------------------\n\nThese options are passed directly to `https.request` if present. Taken from the [original documentation](http://nodejs.org/docs/latest/api/https.html):\n\n - `pfx` : Certificate, Private key and CA certificates to use for SSL.\n - `key` : Private key to use for SSL.\n - `passphrase` : A string of passphrase for the private key or pfx.\n - `cert` : Public x509 certificate to use.\n - `ca` : An authority certificate or array of authority certificates to check the remote host against.\n - `ciphers` : A string describing the ciphers to use or exclude.\n - `rejectUnauthorized` : If true, the server certificate is verified against the list of supplied CAs. An 'error' event is emitted if verification fails. Verification happens at the connection level, before the HTTP request is sent.\n - `secureProtocol` : The SSL method to use, e.g. SSLv3_method to force SSL version 3.\n\nRedirect options\n----------------\n\nThese options only apply if the `follow_max` (or `follow`) option is higher than 0.\n\n - `follow_set_cookies` : Sends the cookies received in the `set-cookie` header as part of the following request. `false` by default.\n - `follow_set_referer` : Sets the 'Referer' header to the requested URI when following a redirect. `false` by default.\n - `follow_keep_method` : If enabled, resends the request using the original verb instead of being rewritten to `get` with no data. `false` by default.\n - `follow_if_same_host` : When true, Needle will only follow redirects that point to the same host as the original request. `false` by default.\n - `follow_if_same_protocol` : When true, Needle will only follow redirects that point to the same protocol as the original request. `false` by default.\n\nOverriding Defaults\n-------------------\n\nYes sir, we have it. Needle includes a `defaults()` method, that lets you override some of the defaults for all future requests. Like this:\n\n```js\nneedle.defaults({\n open_timeout: 60000,\n user_agent: 'MyApp/1.2.3',\n parse_response: false });\n```\n\nThis will override Needle's default user agent and 10-second timeout, and disable response parsing, so you don't need to pass those options in every other request.\n\nMore advanced Proxy support\n---------------------------\n\nSince you can pass a custom HTTPAgent to Needle you can do all sorts of neat stuff. For example, if you want to use the [`tunnel`](https://github.com/koichik/node-tunnel) module for HTTPS proxying, you can do this:\n\n```js\nvar tunnel = require('tunnel');\nvar myAgent = tunnel.httpOverHttp({\n proxy: { host: 'localhost' }\n});\n\nneedle.get('foobar.com', { agent: myAgent });\n```\n\nRegarding the 'Connection' header\n---------------------------------\n\nUnless you're running an old version of Node (< 0.11.4), by default Needle won't set the Connection header on requests, yielding Node's default behaviour of keeping the connection alive with the target server. This speeds up inmensely the process of sending several requests to the same host.\n\nOn older versions, however, this has the unwanted behaviour of preventing the runtime from exiting, either because of a bug or 'feature' that was changed on 0.11.4. To overcome this Needle does set the 'Connection' header to 'close' on those versions, however this also means that making new requests to the same host doesn't benefit from Keep-Alive.\n\nSo if you're stuck on 0.10 or even lower and want full speed, you can simply set the Connection header to 'Keep-Alive' by using `{ connection: 'Keep-Alive' }`. Please note, though, that an event loop handler will prevent the runtime from exiting so you'll need to manually call `process.exit()` or the universe will collapse.\n\nExamples Galore\n---------------\n\n### HTTPS GET with Basic Auth\n\n```js\nneedle.get('https://api.server.com', { username: 'you', password: 'secret' },\n function(err, resp) {\n // used HTTP auth\n});\n```\n\nOr use [RFC-1738](http://tools.ietf.org/html/rfc1738#section-3.1) basic auth URL syntax:\n\n```js\nneedle.get('https://username:password@api.server.com', function(err, resp) {\n // used HTTP auth from URL\n});\n```\n\n### Digest Auth\n\n```js\nneedle.get('other.server.com', { username: 'you', password: 'secret', auth: 'digest' },\n function(err, resp, body) {\n // needle prepends 'http://' to your URL, if missing\n});\n```\n\n### Custom Accept header, deflate\n\n```js\nvar options = {\n compressed : true,\n follow : 10,\n accept : 'application/vnd.github.full+json'\n}\n\nneedle.get('api.github.com/users/tomas', options, function(err, resp, body) {\n // body will contain a JSON.parse(d) object\n // if parsing fails, you'll simply get the original body\n});\n```\n\n### GET XML object\n\n```js\nneedle.get('https://news.ycombinator.com/rss', function(err, resp, body) {\n // you'll get a nice object containing the nodes in the RSS\n});\n```\n\n### GET binary, output to file\n\n```js\nneedle.get('http://upload.server.com/tux.png', { output: '/tmp/tux.png' }, function(err, resp, body) {\n // you can dump any response to a file, not only binaries.\n});\n```\n\n### GET through proxy\n\n```js\nneedle.get('http://search.npmjs.org', { proxy: 'http://localhost:1234' }, function(err, resp, body) {\n // request passed through proxy\n});\n```\n\n### GET a very large document in a stream (from 0.7+)\n\n```js\nvar stream = needle.get('http://www.as35662.net/100.log');\n\nstream.on('readable', function() {\n var chunk;\n while (chunk = this.read()) {\n console.log('got data: ', chunk);\n }\n});\n```\n\n### GET JSON object in a stream (from 0.7+)\n\n```js\nvar stream = needle.get('http://jsonplaceholder.typicode.com/db', { parse: true });\n\nstream.on('readable', function() {\n var node;\n\n // our stream will only emit a single JSON root node.\n while (node = this.read()) {\n console.log('got data: ', node);\n }\n});\n```\n\n### GET JSONStream flexible parser with search query (from 0.7+)\n\n```js\n\n // The 'data' element of this stream will be the string representation\n // of the titles of all posts.\n\nneedle.get('http://jsonplaceholder.typicode.com/db', { parse: true })\n .pipe(new JSONStream.parse('posts.*.title'));\n .on('data', function (obj) {\n console.log('got post title: %s', obj);\n });\n```\n\n### File upload using multipart, passing file path\n\n```js\nvar data = {\n foo: 'bar',\n image: { file: '/home/tomas/linux.png', content_type: 'image/png' }\n}\n\nneedle.post('http://my.other.app.com', data, { multipart: true }, function(err, resp, body) {\n // needle will read the file and include it in the form-data as binary\n});\n```\n\n### Stream upload, PUT or POST\n\n``` js\nneedle.put('https://api.app.com/v2', fs.createReadStream('myfile.txt'), function(err, resp, body) {\n // stream content is uploaded verbatim\n});\n```\n\n### Multipart POST, passing data buffer\n\n```js\nvar buffer = fs.readFileSync('/path/to/package.zip');\n\nvar data = {\n zip_file: {\n buffer : buffer,\n filename : 'mypackage.zip',\n content_type : 'application/octet-stream'\n }\n}\n\nneedle.post('http://somewhere.com/over/the/rainbow', data, { multipart: true }, function(err, resp, body) {\n // if you see, when using buffers we need to pass the filename for the multipart body.\n // you can also pass a filename when using the file path method, in case you want to override\n // the default filename to be received on the other end.\n});\n```\n\n### Multipart with custom Content-Type\n\n```js\nvar data = {\n token: 'verysecret',\n payload: {\n value: JSON.stringify({ title: 'test', version: 1 }),\n content_type: 'application/json'\n }\n}\n\nneedle.post('http://test.com/', data, { timeout: 5000, multipart: true }, function(err, resp, body) {\n // in this case, if the request takes more than 5 seconds\n // the callback will return a [Socket closed] error\n});\n```\n\nFor even more examples, check out the examples directory in the repo.\n\n### Testing\n\nTo run tests, you need to generate a self-signed SSL certificate in the `test` directory. After cloning the repository, run the following commands:\n\n $ mkdir -p test/keys\n $ openssl genrsa -out test/keys/ssl.key 2048\n $ openssl req -new -key test/keys/ssl.key -x509 -days 999 -out test/keys/ssl.cert\n\nThen you should be able to run `npm test` once you have the dependencies in place.\n\n> Note: Tests currently only work on linux-based environments that have `/proc/self/fd`. They *do not* work on MacOS environments.\n> You can use Docker to run tests by creating a container and mounting the needle project directory on `/app`\n> `docker create --name Needle -v /app -w /app -v /app/node_modules -i node:argon`\n\nCredits\n-------\n\nWritten by Tomás Pollak, with the help of contributors.\n\nCopyright\n---------\n\n(c) Fork Ltd. Licensed under the MIT license.\n# iferr\n\nHigher-order functions for easier error handling.\n\n`if (err) return cb(err);` be gone!\n\n## Install\n```bash\nnpm install iferr\n```\n\n## Use\n\n### JavaScript example\n```js\nvar iferr = require('iferr');\n\nfunction get_friends_count(id, cb) {\n User.load_user(id, iferr(cb, function(user) {\n user.load_friends(iferr(cb, function(friends) {\n cb(null, friends.length);\n }));\n }));\n}\n```\n\n### CoffeeScript example\n```coffee\niferr = require 'iferr'\n\nget_friends_count = (id, cb) ->\n User.load_user id, iferr cb, (user) ->\n user.load_friends iferr cb, (friends) ->\n cb null, friends.length\n```\n\n(TODO: document tiferr, throwerr and printerr)\n\n## License\nMIT\n# SockJS-client\n\n[](https://www.npmjs.com/package/sockjs-client)[](https://travis-ci.org/sockjs/sockjs-client)[](https://david-dm.org/sockjs/sockjs-client)[](https://gitter.im/sockjs/sockjs-client)\n[](https://www.browserstack.com/automate/public-build/dW9YdlFsSEI5VzNBVVk5ZS9XT0xaTjJVQkhQMkRkNlZBQURiSWNWMC9jaz0tLXRJM05RbW1tTCt5TlhHaVgycFJUYmc9PQ==--e3ef9b9a9fa071084e6d87874b5fc65b71273821)\n\nSockJS is a browser JavaScript library that provides a WebSocket-like\nobject. SockJS gives you a coherent, cross-browser, Javascript API\nwhich creates a low latency, full duplex, cross-domain communication\nchannel between the browser and the web server.\n\nUnder the hood SockJS tries to use native WebSockets first. If that\nfails it can use a variety of browser-specific transport protocols and\npresents them through WebSocket-like abstractions.\n\nSockJS is intended to work for all modern browsers and in environments\nwhich don't support the WebSocket protocol -- for example, behind restrictive\ncorporate proxies.\n\nSockJS-client does require a server counterpart:\n\n * [SockJS-node](https://github.com/sockjs/sockjs-node) is a SockJS\n server for Node.js.\n\nPhilosophy:\n\n * The API should follow\n [HTML5 Websockets API](https://www.w3.org/TR/websockets/) as\n closely as possible.\n * All the transports must support cross domain connections out of the\n box. It's possible and recommended to host a SockJS server on a\n different server than your main web site.\n * There is support for at least one streaming protocol for every\n major browser.\n * Streaming transports should work cross-domain and\n should support cookies (for cookie-based sticky sessions).\n * Polling transports are used as a fallback for old browsers and\n hosts behind restrictive proxies.\n * Connection establishment should be fast and lightweight.\n * No Flash inside (no need to open port 843 - which doesn't work\n through proxies, no need to host 'crossdomain.xml', no need\n [to wait for 3 seconds](https://github.com/gimite/web-socket-js/issues/49)\n in order to detect problems)\n\nSubscribe to\n[SockJS mailing list](https://groups.google.com/forum/#!forum/sockjs) for\ndiscussions and support.\n\nSockJS family:\n\n * [SockJS-client](https://github.com/sockjs/sockjs-client) JavaScript client library\n * [SockJS-node](https://github.com/sockjs/sockjs-node) Node.js server\n * [SockJS-erlang](https://github.com/sockjs/sockjs-erlang) Erlang server\n * [SockJS-cyclone](https://github.com/flaviogrossi/sockjs-cyclone) Python/Cyclone/Twisted server\n * [SockJS-tornado](https://github.com/MrJoes/sockjs-tornado) Python/Tornado server\n * [SockJS-twisted](https://github.com/DesertBus/sockjs-twisted/) Python/Twisted server\n * [SockJS-aiohttp](https://github.com/aio-libs/sockjs/) Python/Aiohttp server\n * [Spring Framework](https://projects.spring.io/spring-framework) Java [client](https://docs.spring.io/spring-framework/docs/current/spring-framework-reference/web.html#websocket-fallback-sockjs-client) & server\n * [vert.x](https://github.com/vert-x/vert.x) Java/vert.x server\n * [Xitrum](https://xitrum-framework.github.io/) Scala server\n * [Atmosphere Framework](https://github.com/Atmosphere/atmosphere) JavaEE Server, Play Framework, Netty, Vert.x\n * [Actix SockJS](https://github.com/fafhrd91/actix-sockjs) Rust Server, Actix Framework\n\nWork in progress:\n\n * [SockJS-ruby](https://github.com/nyarly/sockjs-ruby)\n * [SockJS-netty](https://github.com/cgbystrom/sockjs-netty)\n * [SockJS-gevent](https://github.com/ksava/sockjs-gevent) ([SockJS-gevent fork](https://github.com/njoyce/sockjs-gevent))\n * [pyramid-SockJS](https://github.com/fafhrd91/pyramid_sockjs)\n * [wildcloud-websockets](https://github.com/wildcloud/wildcloud-websockets)\n * [wai-SockJS](https://github.com/Palmik/wai-sockjs)\n * [SockJS-perl](https://github.com/vti/sockjs-perl)\n * [SockJS-go](https://github.com/igm/sockjs-go/)\n\nGetting Started\n-------\n\nSockJS mimics the [WebSockets API](https://www.w3.org/TR/websockets/),\nbut instead of `WebSocket` there is a `SockJS` Javascript object.\n\nFirst, you need to load the SockJS JavaScript library. For example, you can\nput that in your HTML head:\n\n```html\n<script src=\"https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js\"></script>\n```\n\nAfter the script is loaded you can establish a connection with the\nSockJS server. Here's a simple example:\n\n```javascript\n var sock = new SockJS('https://mydomain.com/my_prefix');\n sock.onopen = function() {\n console.log('open');\n sock.send('test');\n };\n\n sock.onmessage = function(e) {\n console.log('message', e.data);\n sock.close();\n };\n\n sock.onclose = function() {\n console.log('close');\n };\n\n```\n\nSockJS-client API\n-----------------\n\n### SockJS class\n\nSimilar to the 'WebSocket' API, the 'SockJS' constructor takes one, or more arguments:\n\n```javascript\nvar sockjs = new SockJS(url, _reserved, options);\n```\n\n`url` may contain a query string, if one is desired.\n\nWhere `options` is a hash which can contain:\n\n * **server (string)**\n\n String to append to url for actual data connection. Defaults to a random 4 digit number.\n\n * **transports (string OR array of strings)**\n\n Sometimes it is useful to disable some fallback transports. This\n option allows you to supply a list transports that may be used by\n SockJS. By default all available transports will be used.\n\n * **sessionId (number OR function)**\n\n Both client and server use session identifiers to distinguish connections.\n If you specify this option as a number, SockJS will use its random string\n generator function to generate session ids that are N-character long\n (where N corresponds to the number specified by **sessionId**).\n When you specify this option as a function, the function must return a\n randomly generated string. Every time SockJS needs to generate a session\n id it will call this function and use the returned string directly.\n If you don't specify this option, the default is to use the default random\n string generator to generate 8-character long session ids.\n\nAlthough the 'SockJS' object tries to emulate the 'WebSocket'\nbehaviour, it's impossible to support all of its features. An\nimportant SockJS limitation is the fact that you're not allowed to\nopen more than one SockJS connection to a single domain at a time.\nThis limitation is caused by an in-browser limit of outgoing\nconnections - usually [browsers don't allow opening more than two\noutgoing connections to a single domain](https://stackoverflow.com/questions/985431/max-parallel-http-connections-in-a-browser). A single SockJS session\nrequires those two connections - one for downloading data, the other for\nsending messages. Opening a second SockJS session at the same time\nwould most likely block, and can result in both sessions timing out.\n\nOpening more than one SockJS connection at a time is generally a\nbad practice. If you absolutely must do it, you can use\nmultiple subdomains, using a different subdomain for every\nSockJS connection.\n\nSupported transports, by browser (html served from http:// or https://)\n-----------------------------------------------------------------------\n\n_Browser_ | _Websockets_ | _Streaming_ | _Polling_\n----------------|------------------|-------------|-------------------\nIE 6, 7 | no | no | jsonp-polling\nIE 8, 9 (cookies=no) | no | xdr-streaming † | xdr-polling †\nIE 8, 9 (cookies=yes)| no | iframe-htmlfile | iframe-xhr-polling\nIE 10 | rfc6455 | xhr-streaming | xhr-polling\nChrome 6-13 | hixie-76 | xhr-streaming | xhr-polling\nChrome 14+ | hybi-10 / rfc6455| xhr-streaming | xhr-polling\nFirefox <10 | no ‡ | xhr-streaming | xhr-polling\nFirefox 10+ | hybi-10 / rfc6455| xhr-streaming | xhr-polling\nSafari 5.x | hixie-76 | xhr-streaming | xhr-polling\nSafari 6+ | rfc6455 | xhr-streaming | xhr-polling\nOpera 10.70+ | no ‡ | iframe-eventsource | iframe-xhr-polling\nOpera 12.10+ | rfc6455 | xhr-streaming | xhr-polling\nKonqueror | no | no | jsonp-polling\n\n * **†**: IE 8+ supports [XDomainRequest][^9], which is\n essentially a modified AJAX/XHR that can do requests across\n domains. But unfortunately it doesn't send any cookies, which\n makes it inappropriate for deployments when the load balancer uses\n JSESSIONID cookie to do sticky sessions.\n\n * **‡**: Firefox 4.0 and Opera 11.00 and shipped with disabled\n Websockets \"hixie-76\". They can still be enabled by manually\n changing a browser setting.\n\nSupported transports, by browser (html served from file://)\n-----------------------------------------------------------\n\nSometimes you may want to serve your html from \"file://\" address - for\ndevelopment or if you're using PhoneGap or similar technologies. But\ndue to the Cross Origin Policy files served from \"file://\" have no\nOrigin, and that means some of SockJS transports won't work. For this\nreason the SockJS transport table is different than usually, major\ndifferences are:\n\n_Browser_ | _Websockets_ | _Streaming_ | _Polling_\n----------------|---------------|--------------------|-------------------\nIE 8, 9 | same as above | iframe-htmlfile | iframe-xhr-polling\nOther | same as above | iframe-eventsource | iframe-xhr-polling\n\nSupported transports, by name\n-----------------------------\n\n_Transport_ | _References_\n---------------------|---------------\nwebsocket (rfc6455) | [rfc 6455][^10]\nwebsocket (hixie-76) | [draft-hixie-thewebsocketprotocol-76][^1]\nwebsocket (hybi-10) | [draft-ietf-hybi-thewebsocketprotocol-10][^2]\nxhr-streaming | Transport using [Cross domain XHR][^5] [streaming][^7] capability (readyState=3).\nxdr-streaming | Transport using [XDomainRequest][^9] [streaming][^7] capability (readyState=3).\neventsource | [EventSource/Server-sent events][^4].\niframe-eventsource | [EventSource/Server-sent events][^4] used from an [iframe via postMessage][^3].\nhtmlfile | [HtmlFile][^8].\niframe-htmlfile | [HtmlFile][^8] used from an [iframe via postMessage][^3].\nxhr-polling | Long-polling using [cross domain XHR][^5].\nxdr-polling | Long-polling using [XDomainRequest][^9].\niframe-xhr-polling | Long-polling using normal AJAX from an [iframe via postMessage][^3].\njsonp-polling | Slow and old fashioned [JSONP polling][^6]. This transport will show \"busy indicator\" (aka: \"spinning wheel\") when sending data.\n\n[^1]: https://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76\n[^2]: https://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-10\n[^3]: https://developer.mozilla.org/en/DOM/window.postMessage\n[^4]: https://html.spec.whatwg.org/multipage/comms.html#server-sent-events\n[^5]: https://secure.wikimedia.org/wikipedia/en/wiki/XMLHttpRequest#Cross-domain_requests\n[^6]: https://secure.wikimedia.org/wikipedia/en/wiki/JSONP\n[^7]: http://www.debugtheweb.com/test/teststreaming.aspx\n[^8]: http://cometdaily.com/2007/11/18/ie-activexhtmlfile-transport-part-ii/\n[^9]: https://blogs.msdn.microsoft.com/ieinternals/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds/\n[^10]: https://www.rfc-editor.org/rfc/rfc6455.txt\n\nConnecting to SockJS without the client\n---------------------------------------\n\nAlthough the main point of SockJS is to enable browser-to-server\nconnectivity, it is possible to connect to SockJS from an external\napplication. Any SockJS server complying with 0.3 protocol does\nsupport a raw WebSocket url. The raw WebSocket url for the test server\nlooks like:\n\n * ws://localhost:8081/echo/websocket\n\nYou can connect any WebSocket RFC 6455 compliant WebSocket client to\nthis url. This can be a command line client, external application,\nthird party code or even a browser (though I don't know why you would\nwant to do so).\n\nDeployment\n----------\n\nYou should use a version of sockjs-client\nthat supports the protocol used by your server. For example:\n\n```html\n<script src=\"https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js\"></script>\n```\n\nFor server-side deployment tricks, especially about load balancing and\nsession stickiness, take a look at the\n[SockJS-node readme](https://github.com/sockjs/sockjs-node#readme).\n\nDevelopment and testing\n-----------------------\n\nSockJS-client needs [node.js](https://nodejs.org/) for running a test\nserver and JavaScript minification. If you want to work on\nSockJS-client source code, checkout the git repo and follow these\nsteps:\n\n cd sockjs-client\n npm install\n\nTo generate JavaScript, run:\n\n gulp browserify\n\nTo generate minified JavaScript, run:\n\n gulp browserify:min\n\nBoth commands output into the `build` directory.\n\n### Testing\n\nAutomated testing provided by:\n\n<a href=\"https://browserstack.com\"><img src=\"img/Browserstack-logo@2x.png\" height=\"50\"></a>\n\nOnce you've compiled the SockJS-client you may want to check if your changes\npass all the tests.\n\n npm run test:browser_local\n\nThis will start [karma](https://karma-runner.github.io) and a test support server.\n\nBrowser Quirks\n--------------\n\nThere are various browser quirks which we don't intend to address:\n\n * Pressing ESC in Firefox, before Firefox 20, closes the SockJS connection. For a workaround\n and discussion see [#18](https://github.com/sockjs/sockjs-client/issues/18).\n * `jsonp-polling` transport will show a \"spinning wheel\" (aka. \"busy indicator\")\n when sending data.\n * You can't open more than one SockJS connection to one domain at the\n same time due to [the browser's limit of concurrent connections](https://stackoverflow.com/questions/985431/max-parallel-http-connections-in-a-browser)\n (this limit is not counting native WebSocket connections).\n * Although SockJS is trying to escape any strange Unicode characters\n (even invalid ones - [like surrogates \\xD800-\\xDBFF](https://en.wikipedia.org/wiki/Mapping_of_Unicode_characters#Surrogates) or [\\xFFFE and \\xFFFF](https://en.wikipedia.org/wiki/Unicode#Character_General_Category))\n it's advisable to use only valid characters. Using invalid\n characters is a bit slower, and may not work with SockJS servers\n that have proper Unicode support.\n * Having a global function called `onmessage` or such is probably a\n bad idea, as it could be called by the built-in `postMessage` API.\n * From SockJS' point of view there is nothing special about\n SSL/HTTPS. Connecting between unencrypted and encrypted sites\n should work just fine.\n * Although SockJS does its best to support both prefix and cookie based\n sticky sessions, the latter may not work well cross-domain with\n browsers that don't accept third-party cookies by default (Safari).\n In order to get around this make sure you're connecting to SockJS\n from the same parent domain as the main site. For example\n 'sockjs.a.com' is able to set cookies if you're connecting from\n 'www.a.com' or 'a.com'.\n * Trying to connect from secure \"https://\" to insecure \"http://\" is\n not a good idea. The other way around should be fine.\n * Long polling is known to cause problems on Heroku, but a\n [workaround for SockJS is available](https://github.com/sockjs/sockjs-node/issues/57#issuecomment-5242187).\n * SockJS [websocket transport is more stable over SSL](https://github.com/sockjs/sockjs-client/issues/94). If\n you're a serious SockJS user then consider using SSL\n ([more info](https://www.ietf.org/mail-archive/web/hybi/current/msg01605.html)).\n# unicode-match-property-value-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-match-property-value-ecmascript)\n\n_unicode-match-property-value-ecmascript_ matches a given Unicode property value or [property value alias](https://github.com/mathiasbynens/unicode-property-value-aliases) to its canonical property value without applying [loose matching](https://github.com/mathiasbynens/unicode-loose-match), per the algorithm used for [RegExp Unicode property escapes in ECMAScript](https://github.com/tc39/proposal-regexp-unicode-property-escapes). Consider it a strict alternative to loose matching.\n\n## Installation\n\nTo use _unicode-match-property-value-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\n$ npm install unicode-match-property-value-ecmascript\n```\n\nThen, `require` it:\n\n```js\nconst matchPropertyValue = require('unicode-match-property-value-ecmascript');\n```\n\n## API\n\nThis module exports a single function named `matchPropertyValue`.\n\n### `matchPropertyValue(property, value)`\n\nThis function takes a string `property` that is a canonical/unaliased Unicode property name, and a string `value`. It attemps to match `value` to a canonical Unicode property value for the given property. If there’s a match, it returns the canonical property value. Otherwise, it throws an exception.\n\n```js\n// Find the canonical property value:\nmatchPropertyValue('Script_Extensions', 'Aghb')\n// → 'Caucasian_Albanian'\n\nmatchPropertyValue('Script_Extensions', 'Caucasian_Albanian')\n// → 'Caucasian_Albanian'\n\nmatchPropertyValue('script_extensions', 'Caucasian_Albanian') // Note: incorrect casing.\n// → throws\n\nmatchPropertyValue('Script_Extensions', 'caucasian_albanian') // Note: incorrect casing.\n// → throws\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_unicode-match-property-value-ecmascript_ is available under the [MIT](https://mths.be/mit) license.\nThese files are compiled dot templates from dot folder.\n\nDo NOT edit them directly, edit the templates and run `npm run build` from main ajv-keywords folder.\n# arr-union [](https://www.npmjs.com/package/arr-union) [](https://travis-ci.org/jonschlinkert/arr-union)\n\n> Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm i arr-union --save\n```\n\n## Benchmarks\n\nThis library is **10-20 times faster** and more performant than [array-union](https://github.com/sindresorhus/array-union).\n\nSee the [benchmarks](./benchmark).\n\n```sh\n#1: five-arrays\n array-union x 511,121 ops/sec ±0.80% (96 runs sampled)\n arr-union x 5,716,039 ops/sec ±0.86% (93 runs sampled)\n\n#2: ten-arrays\n array-union x 245,196 ops/sec ±0.69% (94 runs sampled)\n arr-union x 1,850,786 ops/sec ±0.84% (97 runs sampled)\n\n#3: two-arrays\n array-union x 563,869 ops/sec ±0.97% (94 runs sampled)\n arr-union x 9,602,852 ops/sec ±0.87% (92 runs sampled)\n```\n\n## Usage\n\n```js\nvar union = require('arr-union');\n\nunion(['a'], ['b', 'c'], ['d', 'e', 'f']);\n//=> ['a', 'b', 'c', 'd', 'e', 'f']\n```\n\nReturns only unique elements:\n\n```js\nunion(['a', 'a'], ['b', 'c']);\n//=> ['a', 'b', 'c']\n```\n\n## Related projects\n\n* [arr-diff](https://www.npmjs.com/package/arr-diff): Returns an array with only the unique values from the first array, by excluding all… [more](https://www.npmjs.com/package/arr-diff) | [homepage](https://github.com/jonschlinkert/arr-diff)\n* [arr-filter](https://www.npmjs.com/package/arr-filter): Faster alternative to javascript's native filter method. | [homepage](https://github.com/jonschlinkert/arr-filter)\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten)\n* [arr-map](https://www.npmjs.com/package/arr-map): Faster, node.js focused alternative to JavaScript's native array map. | [homepage](https://github.com/jonschlinkert/arr-map)\n* [arr-pluck](https://www.npmjs.com/package/arr-pluck): Retrieves the value of a specified property from all elements in the collection. | [homepage](https://github.com/jonschlinkert/arr-pluck)\n* [arr-reduce](https://www.npmjs.com/package/arr-reduce): Fast array reduce that also loops over sparse elements. | [homepage](https://github.com/jonschlinkert/arr-reduce)\n* [array-unique](https://www.npmjs.com/package/array-unique): Return an array free of duplicate values. Fastest ES5 implementation. | [homepage](https://github.com/jonschlinkert/array-unique)\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/arr-union/issues/new).\n\n## Building docs\n\nGenerate readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm i verb && npm run docs\n```\n\nOr, if [verb](https://github.com/verbose/verb) is installed globally:\n\n```sh\n$ verb\n```\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2016 [Jon Schlinkert](https://github.com/jonschlinkert)\nReleased under the [MIT license](https://github.com/jonschlinkert/arr-union/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on February 23, 2016._\nsshpk\n=========\n\nParse, convert, fingerprint and use SSH keys (both public and private) in pure\nnode -- no `ssh-keygen` or other external dependencies.\n\nSupports RSA, DSA, ECDSA (nistp-\\*) and ED25519 key types, in PEM (PKCS#1, \nPKCS#8) and OpenSSH formats.\n\nThis library has been extracted from\n[`node-http-signature`](https://github.com/joyent/node-http-signature)\n(work by [Mark Cavage](https://github.com/mcavage) and\n[Dave Eddy](https://github.com/bahamas10)) and\n[`node-ssh-fingerprint`](https://github.com/bahamas10/node-ssh-fingerprint)\n(work by Dave Eddy), with additions (including ECDSA support) by\n[Alex Wilson](https://github.com/arekinath).\n\nInstall\n-------\n\n```\nnpm install sshpk\n```\n\nExamples\n--------\n\n```js\nvar sshpk = require('sshpk');\n\nvar fs = require('fs');\n\n/* Read in an OpenSSH-format public key */\nvar keyPub = fs.readFileSync('id_rsa.pub');\nvar key = sshpk.parseKey(keyPub, 'ssh');\n\n/* Get metadata about the key */\nconsole.log('type => %s', key.type);\nconsole.log('size => %d bits', key.size);\nconsole.log('comment => %s', key.comment);\n\n/* Compute key fingerprints, in new OpenSSH (>6.7) format, and old MD5 */\nconsole.log('fingerprint => %s', key.fingerprint().toString());\nconsole.log('old-style fingerprint => %s', key.fingerprint('md5').toString());\n```\n\nExample output:\n\n```\ntype => rsa\nsize => 2048 bits\ncomment => foo@foo.com\nfingerprint => SHA256:PYC9kPVC6J873CSIbfp0LwYeczP/W4ffObNCuDJ1u5w\nold-style fingerprint => a0:c8:ad:6c:32:9a:32:fa:59:cc:a9:8c:0a:0d:6e:bd\n```\n\nMore examples: converting between formats:\n\n```js\n/* Read in a PEM public key */\nvar keyPem = fs.readFileSync('id_rsa.pem');\nvar key = sshpk.parseKey(keyPem, 'pem');\n\n/* Convert to PEM PKCS#8 public key format */\nvar pemBuf = key.toBuffer('pkcs8');\n\n/* Convert to SSH public key format (and return as a string) */\nvar sshKey = key.toString('ssh');\n```\n\nSigning and verifying:\n\n```js\n/* Read in an OpenSSH/PEM *private* key */\nvar keyPriv = fs.readFileSync('id_ecdsa');\nvar key = sshpk.parsePrivateKey(keyPriv, 'pem');\n\nvar data = 'some data';\n\n/* Sign some data with the key */\nvar s = key.createSign('sha1');\ns.update(data);\nvar signature = s.sign();\n\n/* Now load the public key (could also use just key.toPublic()) */\nvar keyPub = fs.readFileSync('id_ecdsa.pub');\nkey = sshpk.parseKey(keyPub, 'ssh');\n\n/* Make a crypto.Verifier with this key */\nvar v = key.createVerify('sha1');\nv.update(data);\nvar valid = v.verify(signature);\n/* => true! */\n```\n\nMatching fingerprints with keys:\n\n```js\nvar fp = sshpk.parseFingerprint('SHA256:PYC9kPVC6J873CSIbfp0LwYeczP/W4ffObNCuDJ1u5w');\n\nvar keys = [sshpk.parseKey(...), sshpk.parseKey(...), ...];\n\nkeys.forEach(function (key) {\n\tif (fp.matches(key))\n\t\tconsole.log('found it!');\n});\n```\n\nUsage\n-----\n\n## Public keys\n\n### `parseKey(data[, format = 'auto'[, options]])`\n\nParses a key from a given data format and returns a new `Key` object.\n\nParameters\n\n- `data` -- Either a Buffer or String, containing the key\n- `format` -- String name of format to use, valid options are:\n - `auto`: choose automatically from all below\n - `pem`: supports both PKCS#1 and PKCS#8\n - `ssh`: standard OpenSSH format,\n - `pkcs1`, `pkcs8`: variants of `pem`\n - `rfc4253`: raw OpenSSH wire format\n - `openssh`: new post-OpenSSH 6.5 internal format, produced by \n `ssh-keygen -o`\n - `dnssec`: `.key` file format output by `dnssec-keygen` etc\n - `putty`: the PuTTY `.ppk` file format (supports truncated variant without\n all the lines from `Private-Lines:` onwards)\n- `options` -- Optional Object, extra options, with keys:\n - `filename` -- Optional String, name for the key being parsed \n (eg. the filename that was opened). Used to generate\n Error messages\n - `passphrase` -- Optional String, encryption passphrase used to decrypt an\n encrypted PEM file\n\n### `Key.isKey(obj)`\n\nReturns `true` if the given object is a valid `Key` object created by a version\nof `sshpk` compatible with this one.\n\nParameters\n\n- `obj` -- Object to identify\n\n### `Key#type`\n\nString, the type of key. Valid options are `rsa`, `dsa`, `ecdsa`.\n\n### `Key#size`\n\nInteger, \"size\" of the key in bits. For RSA/DSA this is the size of the modulus;\nfor ECDSA this is the bit size of the curve in use.\n\n### `Key#comment`\n\nOptional string, a key comment used by some formats (eg the `ssh` format).\n\n### `Key#curve`\n\nOnly present if `this.type === 'ecdsa'`, string containing the name of the\nnamed curve used with this key. Possible values include `nistp256`, `nistp384`\nand `nistp521`.\n\n### `Key#toBuffer([format = 'ssh'])`\n\nConvert the key into a given data format and return the serialized key as\na Buffer.\n\nParameters\n\n- `format` -- String name of format to use, for valid options see `parseKey()`\n\n### `Key#toString([format = 'ssh])`\n\nSame as `this.toBuffer(format).toString()`.\n\n### `Key#fingerprint([algorithm = 'sha256'[, hashType = 'ssh']])`\n\nCreates a new `Fingerprint` object representing this Key's fingerprint.\n\nParameters\n\n- `algorithm` -- String name of hash algorithm to use, valid options are `md5`,\n `sha1`, `sha256`, `sha384`, `sha512`\n- `hashType` -- String name of fingerprint hash type to use, valid options are\n `ssh` (the type of fingerprint used by OpenSSH, e.g. in\n `ssh-keygen`), `spki` (used by HPKP, some OpenSSL applications)\n\n### `Key#createVerify([hashAlgorithm])`\n\nCreates a `crypto.Verifier` specialized to use this Key (and the correct public\nkey algorithm to match it). The returned Verifier has the same API as a regular\none, except that the `verify()` function takes only the target signature as an\nargument.\n\nParameters\n\n- `hashAlgorithm` -- optional String name of hash algorithm to use, any\n supported by OpenSSL are valid, usually including\n `sha1`, `sha256`.\n\n`v.verify(signature[, format])` Parameters\n\n- `signature` -- either a Signature object, or a Buffer or String\n- `format` -- optional String, name of format to interpret given String with.\n Not valid if `signature` is a Signature or Buffer.\n\n### `Key#createDiffieHellman()`\n### `Key#createDH()`\n\nCreates a Diffie-Hellman key exchange object initialized with this key and all\nnecessary parameters. This has the same API as a `crypto.DiffieHellman`\ninstance, except that functions take `Key` and `PrivateKey` objects as\narguments, and return them where indicated for.\n\nThis is only valid for keys belonging to a cryptosystem that supports DHE\nor a close analogue (i.e. `dsa`, `ecdsa` and `curve25519` keys). An attempt\nto call this function on other keys will yield an `Error`.\n\n## Private keys\n\n### `parsePrivateKey(data[, format = 'auto'[, options]])`\n\nParses a private key from a given data format and returns a new\n`PrivateKey` object.\n\nParameters\n\n- `data` -- Either a Buffer or String, containing the key\n- `format` -- String name of format to use, valid options are:\n - `auto`: choose automatically from all below\n - `pem`: supports both PKCS#1 and PKCS#8\n - `ssh`, `openssh`: new post-OpenSSH 6.5 internal format, produced by\n `ssh-keygen -o`\n - `pkcs1`, `pkcs8`: variants of `pem`\n - `rfc4253`: raw OpenSSH wire format\n - `dnssec`: `.private` format output by `dnssec-keygen` etc.\n- `options` -- Optional Object, extra options, with keys:\n - `filename` -- Optional String, name for the key being parsed\n (eg. the filename that was opened). Used to generate\n Error messages\n - `passphrase` -- Optional String, encryption passphrase used to decrypt an\n encrypted PEM file\n\n### `generatePrivateKey(type[, options])`\n\nGenerates a new private key of a certain key type, from random data.\n\nParameters\n\n- `type` -- String, type of key to generate. Currently supported are `'ecdsa'`\n and `'ed25519'`\n- `options` -- optional Object, with keys:\n - `curve` -- optional String, for `'ecdsa'` keys, specifies the curve to use.\n If ECDSA is specified and this option is not given, defaults to\n using `'nistp256'`.\n\n### `PrivateKey.isPrivateKey(obj)`\n\nReturns `true` if the given object is a valid `PrivateKey` object created by a\nversion of `sshpk` compatible with this one.\n\nParameters\n\n- `obj` -- Object to identify\n\n### `PrivateKey#type`\n\nString, the type of key. Valid options are `rsa`, `dsa`, `ecdsa`.\n\n### `PrivateKey#size`\n\nInteger, \"size\" of the key in bits. For RSA/DSA this is the size of the modulus;\nfor ECDSA this is the bit size of the curve in use.\n\n### `PrivateKey#curve`\n\nOnly present if `this.type === 'ecdsa'`, string containing the name of the\nnamed curve used with this key. Possible values include `nistp256`, `nistp384`\nand `nistp521`.\n\n### `PrivateKey#toBuffer([format = 'pkcs1'])`\n\nConvert the key into a given data format and return the serialized key as\na Buffer.\n\nParameters\n\n- `format` -- String name of format to use, valid options are listed under \n `parsePrivateKey`. Note that ED25519 keys default to `openssh`\n format instead (as they have no `pkcs1` representation).\n\n### `PrivateKey#toString([format = 'pkcs1'])`\n\nSame as `this.toBuffer(format).toString()`.\n\n### `PrivateKey#toPublic()`\n\nExtract just the public part of this private key, and return it as a `Key`\nobject.\n\n### `PrivateKey#fingerprint([algorithm = 'sha256'])`\n\nSame as `this.toPublic().fingerprint()`.\n\n### `PrivateKey#createVerify([hashAlgorithm])`\n\nSame as `this.toPublic().createVerify()`.\n\n### `PrivateKey#createSign([hashAlgorithm])`\n\nCreates a `crypto.Sign` specialized to use this PrivateKey (and the correct\nkey algorithm to match it). The returned Signer has the same API as a regular\none, except that the `sign()` function takes no arguments, and returns a\n`Signature` object.\n\nParameters\n\n- `hashAlgorithm` -- optional String name of hash algorithm to use, any\n supported by OpenSSL are valid, usually including\n `sha1`, `sha256`.\n\n`v.sign()` Parameters\n\n- none\n\n### `PrivateKey#derive(newType)`\n\nDerives a related key of type `newType` from this key. Currently this is\nonly supported to change between `ed25519` and `curve25519` keys which are\nstored with the same private key (but usually distinct public keys in order\nto avoid degenerate keys that lead to a weak Diffie-Hellman exchange).\n\nParameters\n\n- `newType` -- String, type of key to derive, either `ed25519` or `curve25519`\n\n## Fingerprints\n\n### `parseFingerprint(fingerprint[, options])`\n\nPre-parses a fingerprint, creating a `Fingerprint` object that can be used to\nquickly locate a key by using the `Fingerprint#matches` function.\n\nParameters\n\n- `fingerprint` -- String, the fingerprint value, in any supported format\n- `options` -- Optional Object, with properties:\n - `algorithms` -- Array of strings, names of hash algorithms to limit\n support to. If `fingerprint` uses a hash algorithm not on\n this list, throws `InvalidAlgorithmError`.\n - `hashType` -- String, the type of hash the fingerprint uses, either `ssh`\n or `spki` (normally auto-detected based on the format, but\n can be overridden)\n - `type` -- String, the entity this fingerprint identifies, either `key` or\n `certificate`\n\n### `Fingerprint.isFingerprint(obj)`\n\nReturns `true` if the given object is a valid `Fingerprint` object created by a\nversion of `sshpk` compatible with this one.\n\nParameters\n\n- `obj` -- Object to identify\n\n### `Fingerprint#toString([format])`\n\nReturns a fingerprint as a string, in the given format.\n\nParameters\n\n- `format` -- Optional String, format to use, valid options are `hex` and\n `base64`. If this `Fingerprint` uses the `md5` algorithm, the\n default format is `hex`. Otherwise, the default is `base64`.\n\n### `Fingerprint#matches(keyOrCertificate)`\n\nVerifies whether or not this `Fingerprint` matches a given `Key` or\n`Certificate`. This function uses double-hashing to avoid leaking timing\ninformation. Returns a boolean.\n\nNote that a `Key`-type Fingerprint will always return `false` if asked to match\na `Certificate` and vice versa.\n\nParameters\n\n- `keyOrCertificate` -- a `Key` object or `Certificate` object, the entity to\n match this fingerprint against\n\n## Signatures\n\n### `parseSignature(signature, algorithm, format)`\n\nParses a signature in a given format, creating a `Signature` object. Useful\nfor converting between the SSH and ASN.1 (PKCS/OpenSSL) signature formats, and\nalso returned as output from `PrivateKey#createSign().sign()`.\n\nA Signature object can also be passed to a verifier produced by\n`Key#createVerify()` and it will automatically be converted internally into the\ncorrect format for verification.\n\nParameters\n\n- `signature` -- a Buffer (binary) or String (base64), data of the actual\n signature in the given format\n- `algorithm` -- a String, name of the algorithm to be used, possible values\n are `rsa`, `dsa`, `ecdsa`\n- `format` -- a String, either `asn1` or `ssh`\n\n### `Signature.isSignature(obj)`\n\nReturns `true` if the given object is a valid `Signature` object created by a\nversion of `sshpk` compatible with this one.\n\nParameters\n\n- `obj` -- Object to identify\n\n### `Signature#toBuffer([format = 'asn1'])`\n\nConverts a Signature to the given format and returns it as a Buffer.\n\nParameters\n\n- `format` -- a String, either `asn1` or `ssh`\n\n### `Signature#toString([format = 'asn1'])`\n\nSame as `this.toBuffer(format).toString('base64')`.\n\n## Certificates\n\n`sshpk` includes basic support for parsing certificates in X.509 (PEM) format\nand the OpenSSH certificate format. This feature is intended to be used mainly\nto access basic metadata about certificates, extract public keys from them, and\nalso to generate simple self-signed certificates from an existing key.\n\nNotably, there is no implementation of CA chain-of-trust verification, and only\nvery minimal support for key usage restrictions. Please do the security world\na favour, and DO NOT use this code for certificate verification in the\ntraditional X.509 CA chain style.\n\n### `parseCertificate(data, format)`\n\nParameters\n\n - `data` -- a Buffer or String\n - `format` -- a String, format to use, one of `'openssh'`, `'pem'` (X.509 in a\n PEM wrapper), or `'x509'` (raw DER encoded)\n\n### `createSelfSignedCertificate(subject, privateKey[, options])`\n\nParameters\n\n - `subject` -- an Identity, the subject of the certificate\n - `privateKey` -- a PrivateKey, the key of the subject: will be used both to be\n placed in the certificate and also to sign it (since this is\n a self-signed certificate)\n - `options` -- optional Object, with keys:\n - `lifetime` -- optional Number, lifetime of the certificate from now in\n seconds\n - `validFrom`, `validUntil` -- optional Dates, beginning and end of\n certificate validity period. If given\n `lifetime` will be ignored\n - `serial` -- optional Buffer, the serial number of the certificate\n - `purposes` -- optional Array of String, X.509 key usage restrictions\n\n### `createCertificate(subject, key, issuer, issuerKey[, options])`\n\nParameters\n\n - `subject` -- an Identity, the subject of the certificate\n - `key` -- a Key, the public key of the subject\n - `issuer` -- an Identity, the issuer of the certificate who will sign it\n - `issuerKey` -- a PrivateKey, the issuer's private key for signing\n - `options` -- optional Object, with keys:\n - `lifetime` -- optional Number, lifetime of the certificate from now in\n seconds\n - `validFrom`, `validUntil` -- optional Dates, beginning and end of\n certificate validity period. If given\n `lifetime` will be ignored\n - `serial` -- optional Buffer, the serial number of the certificate\n - `purposes` -- optional Array of String, X.509 key usage restrictions\n\n### `Certificate#subjects`\n\nArray of `Identity` instances describing the subject of this certificate.\n\n### `Certificate#issuer`\n\nThe `Identity` of the Certificate's issuer (signer).\n\n### `Certificate#subjectKey`\n\nThe public key of the subject of the certificate, as a `Key` instance.\n\n### `Certificate#issuerKey`\n\nThe public key of the signing issuer of this certificate, as a `Key` instance.\nMay be `undefined` if the issuer's key is unknown (e.g. on an X509 certificate).\n\n### `Certificate#serial`\n\nThe serial number of the certificate. As this is normally a 64-bit or wider\ninteger, it is returned as a Buffer.\n\n### `Certificate#purposes`\n\nArray of Strings indicating the X.509 key usage purposes that this certificate\nis valid for. The possible strings at the moment are:\n\n * `'signature'` -- key can be used for digital signatures\n * `'identity'` -- key can be used to attest about the identity of the signer\n (X.509 calls this `nonRepudiation`)\n * `'codeSigning'` -- key can be used to sign executable code\n * `'keyEncryption'` -- key can be used to encrypt other keys\n * `'encryption'` -- key can be used to encrypt data (only applies for RSA)\n * `'keyAgreement'` -- key can be used for key exchange protocols such as\n Diffie-Hellman\n * `'ca'` -- key can be used to sign other certificates (is a Certificate\n Authority)\n * `'crl'` -- key can be used to sign Certificate Revocation Lists (CRLs)\n\n### `Certificate#getExtension(nameOrOid)`\n\nRetrieves information about a certificate extension, if present, or returns\n`undefined` if not. The string argument `nameOrOid` should be either the OID\n(for X509 extensions) or the name (for OpenSSH extensions) of the extension\nto retrieve.\n\nThe object returned will have the following properties:\n\n * `format` -- String, set to either `'x509'` or `'openssh'`\n * `name` or `oid` -- String, only one set based on value of `format`\n * `data` -- Buffer, the raw data inside the extension\n\n### `Certificate#getExtensions()`\n\nReturns an Array of all present certificate extensions, in the same manner and\nformat as `getExtension()`.\n\n### `Certificate#isExpired([when])`\n\nTests whether the Certificate is currently expired (i.e. the `validFrom` and\n`validUntil` dates specify a range of time that does not include the current\ntime).\n\nParameters\n\n - `when` -- optional Date, if specified, tests whether the Certificate was or\n will be expired at the specified time instead of now\n\nReturns a Boolean.\n\n### `Certificate#isSignedByKey(key)`\n\nTests whether the Certificate was validly signed by the given (public) Key.\n\nParameters\n\n - `key` -- a Key instance\n\nReturns a Boolean.\n\n### `Certificate#isSignedBy(certificate)`\n\nTests whether this Certificate was validly signed by the subject of the given\ncertificate. Also tests that the issuer Identity of this Certificate and the\nsubject Identity of the other Certificate are equivalent.\n\nParameters\n\n - `certificate` -- another Certificate instance\n\nReturns a Boolean.\n\n### `Certificate#fingerprint([hashAlgo])`\n\nReturns the X509-style fingerprint of the entire certificate (as a Fingerprint\ninstance). This matches what a web-browser or similar would display as the\ncertificate fingerprint and should not be confused with the fingerprint of the\nsubject's public key.\n\nParameters\n\n - `hashAlgo` -- an optional String, any hash function name\n\n### `Certificate#toBuffer([format])`\n\nSerializes the Certificate to a Buffer and returns it.\n\nParameters\n\n - `format` -- an optional String, output format, one of `'openssh'`, `'pem'` or\n `'x509'`. Defaults to `'x509'`.\n\nReturns a Buffer.\n\n### `Certificate#toString([format])`\n\n - `format` -- an optional String, output format, one of `'openssh'`, `'pem'` or\n `'x509'`. Defaults to `'pem'`.\n\nReturns a String.\n\n## Certificate identities\n\n### `identityForHost(hostname)`\n\nConstructs a host-type Identity for a given hostname.\n\nParameters\n\n - `hostname` -- the fully qualified DNS name of the host\n\nReturns an Identity instance.\n\n### `identityForUser(uid)`\n\nConstructs a user-type Identity for a given UID.\n\nParameters\n\n - `uid` -- a String, user identifier (login name)\n\nReturns an Identity instance.\n\n### `identityForEmail(email)`\n\nConstructs an email-type Identity for a given email address.\n\nParameters\n\n - `email` -- a String, email address\n\nReturns an Identity instance.\n\n### `identityFromDN(dn)`\n\nParses an LDAP-style DN string (e.g. `'CN=foo, C=US'`) and turns it into an\nIdentity instance.\n\nParameters\n\n - `dn` -- a String\n\nReturns an Identity instance.\n\n### `identityFromArray(arr)`\n\nConstructs an Identity from an array of DN components (see `Identity#toArray()`\nfor the format).\n\nParameters\n\n - `arr` -- an Array of Objects, DN components with `name` and `value`\n\nReturns an Identity instance.\n\nSupported attributes in DNs:\n\n| Attribute name | OID |\n| -------------- | --- |\n| `cn` | `2.5.4.3` |\n| `o` | `2.5.4.10` |\n| `ou` | `2.5.4.11` |\n| `l` | `2.5.4.7` |\n| `s` | `2.5.4.8` |\n| `c` | `2.5.4.6` |\n| `sn` | `2.5.4.4` |\n| `postalCode` | `2.5.4.17` |\n| `serialNumber` | `2.5.4.5` |\n| `street` | `2.5.4.9` |\n| `x500UniqueIdentifier` | `2.5.4.45` |\n| `role` | `2.5.4.72` |\n| `telephoneNumber` | `2.5.4.20` |\n| `description` | `2.5.4.13` |\n| `dc` | `0.9.2342.19200300.100.1.25` |\n| `uid` | `0.9.2342.19200300.100.1.1` |\n| `mail` | `0.9.2342.19200300.100.1.3` |\n| `title` | `2.5.4.12` |\n| `gn` | `2.5.4.42` |\n| `initials` | `2.5.4.43` |\n| `pseudonym` | `2.5.4.65` |\n\n### `Identity#toString()`\n\nReturns the identity as an LDAP-style DN string.\ne.g. `'CN=foo, O=bar corp, C=us'`\n\n### `Identity#type`\n\nThe type of identity. One of `'host'`, `'user'`, `'email'` or `'unknown'`\n\n### `Identity#hostname`\n### `Identity#uid`\n### `Identity#email`\n\nSet when `type` is `'host'`, `'user'`, or `'email'`, respectively. Strings.\n\n### `Identity#cn`\n\nThe value of the first `CN=` in the DN, if any. It's probably better to use\nthe `#get()` method instead of this property.\n\n### `Identity#get(name[, asArray])`\n\nReturns the value of a named attribute in the Identity DN. If there is no\nattribute of the given name, returns `undefined`. If multiple components\nof the DN contain an attribute of this name, an exception is thrown unless\nthe `asArray` argument is given as `true` -- then they will be returned as\nan Array in the same order they appear in the DN.\n\nParameters\n\n - `name` -- a String\n - `asArray` -- an optional Boolean\n\n### `Identity#toArray()`\n\nReturns the Identity as an Array of DN component objects. This looks like:\n\n```js\n[ {\n \"name\": \"cn\",\n \"value\": \"Joe Bloggs\"\n},\n{\n \"name\": \"o\",\n \"value\": \"Organisation Ltd\"\n} ]\n```\n\nEach object has a `name` and a `value` property. The returned objects may be\nsafely modified.\n\nErrors\n------\n\n### `InvalidAlgorithmError`\n\nThe specified algorithm is not valid, either because it is not supported, or\nbecause it was not included on a list of allowed algorithms.\n\nThrown by `Fingerprint.parse`, `Key#fingerprint`.\n\nProperties\n\n- `algorithm` -- the algorithm that could not be validated\n\n### `FingerprintFormatError`\n\nThe fingerprint string given could not be parsed as a supported fingerprint\nformat, or the specified fingerprint format is invalid.\n\nThrown by `Fingerprint.parse`, `Fingerprint#toString`.\n\nProperties\n\n- `fingerprint` -- if caused by a fingerprint, the string value given\n- `format` -- if caused by an invalid format specification, the string value given\n\n### `KeyParseError`\n\nThe key data given could not be parsed as a valid key.\n\nProperties\n\n- `keyName` -- `filename` that was given to `parseKey`\n- `format` -- the `format` that was trying to parse the key (see `parseKey`)\n- `innerErr` -- the inner Error thrown by the format parser\n\n### `KeyEncryptedError`\n\nThe key is encrypted with a symmetric key (ie, it is password protected). The\nparsing operation would succeed if it was given the `passphrase` option.\n\nProperties\n\n- `keyName` -- `filename` that was given to `parseKey`\n- `format` -- the `format` that was trying to parse the key (currently can only\n be `\"pem\"`)\n\n### `CertificateParseError`\n\nThe certificate data given could not be parsed as a valid certificate.\n\nProperties\n\n- `certName` -- `filename` that was given to `parseCertificate`\n- `format` -- the `format` that was trying to parse the key\n (see `parseCertificate`)\n- `innerErr` -- the inner Error thrown by the format parser\n\nFriends of sshpk\n----------------\n\n * [`sshpk-agent`](https://github.com/arekinath/node-sshpk-agent) is a library\n for speaking the `ssh-agent` protocol from node.js, which uses `sshpk`\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)\n[](#sponsors)\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nA tiny JavaScript debugging utility modelled after Node.js core's debugging\ntechnique. Works in Node.js and web browsers.\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample [_app.js_](./examples/node/app.js):\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %o', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample [_worker.js_](./examples/node/worker.js):\n\n```js\nvar a = require('debug')('worker:a')\n , b = require('debug')('worker:b');\n\nfunction work() {\n a('doing lots of uninteresting work');\n setTimeout(work, Math.random() * 1000);\n}\n\nwork();\n\nfunction workb() {\n b('doing some work');\n setTimeout(workb, Math.random() * 2000);\n}\n\nworkb();\n```\n\nThe `DEBUG` environment variable is then used to enable these based on space or\ncomma-delimited names.\n\nHere are some examples:\n\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 04 pm\" src=\"https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 38 pm\" src=\"https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 25 pm\" src=\"https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png\">\n\n#### Windows command prompt notes\n\n##### CMD\n\nOn Windows the environment variable is set using the `set` command.\n\n```cmd\nset DEBUG=*,-not_this\n```\n\nExample:\n\n```cmd\nset DEBUG=* & node app.js\n```\n\n##### PowerShell (VS Code default)\n\nPowerShell uses different syntax to set environment variables.\n\n```cmd\n$env:DEBUG = \"*,-not_this\"\n```\n\nExample:\n\n```cmd\n$env:DEBUG='app';node app.js\n```\n\nThen, run the program to be debugged as usual.\n\nnpm script example:\n```js\n \"windowsDebug\": \"@powershell -Command $env:DEBUG='*';node app.js\",\n```\n\n## Namespace Colors\n\nEvery debug instance has a color generated for it based on its namespace name.\nThis helps when visually parsing the debug output to identify which debug instance\na debug line belongs to.\n\n#### Node.js\n\nIn Node.js, colors are enabled when stderr is a TTY. You also _should_ install\nthe [`supports-color`](https://npmjs.org/supports-color) module alongside debug,\notherwise debug will only use a small handful of basic colors.\n\n<img width=\"521\" src=\"https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png\">\n\n#### Web Browser\n\nColors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\noption. These are WebKit web inspectors, Firefox ([since version\n31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\nand the Firebug plugin for Firefox (any version).\n\n<img width=\"524\" src=\"https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png\">\n\n## Millisecond diff\n\nWhen actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nWhen stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png\">\n\n## Conventions\n\nIf you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\". If you append a \"*\" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.\n\n## Wildcards\n\nThe `*` character may be used as a wildcard. Suppose for example your library has\ndebuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\",\ninstead of listing all three with\n`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do\n`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\nYou can also exclude specific debuggers by prefixing them with a \"-\" character.\nFor example, `DEBUG=*,-connect:*` would include all debuggers except those\nstarting with \"connect:\".\n\n## Environment Variables\n\nWhen running through Node.js, you can set a few environment variables that will\nchange the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n__Note:__ The environment variables beginning with `DEBUG_` end up being\nconverted into an Options object that gets used with `%o`/`%O` formatters.\nSee the Node.js documentation for\n[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\nfor the complete list.\n\n## Formatters\n\nDebug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.\nBelow are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\nYou can add custom formatters by extending the `debug.formatters` object.\nFor example, if you wanted to add support for rendering a Buffer as hex with\n`%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser Support\n\nYou can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\nor just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\nif you don't want to build it yourself.\n\nDebug's enable state is currently persisted by `localStorage`.\nConsider the situation shown below where you have `worker:a` and `worker:b`,\nand wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample [_stdout.js_](./examples/node/stdout.js):\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Extend\nYou can simply extend debugger \n```js\nconst log = require('debug')('auth');\n\n//creates new debug instance with extended namespace\nconst logSign = log.extend('sign');\nconst logLogin = log.extend('login');\n\nlog('hello'); // auth hello\nlogSign('hello'); //auth:sign hello\nlogLogin('hello'); //auth:login hello\n```\n\n## Set dynamically\n\nYou can also enable debug dynamically by calling the `enable()` method :\n\n```js\nlet debug = require('debug');\n\nconsole.log(1, debug.enabled('test'));\n\ndebug.enable('test');\nconsole.log(2, debug.enabled('test'));\n\ndebug.disable();\nconsole.log(3, debug.enabled('test'));\n\n```\n\nprint : \n```\n1 false\n2 true\n3 false\n```\n\nUsage : \n`enable(namespaces)` \n`namespaces` can include modes separated by a colon and wildcards.\n \nNote that calling `enable()` completely overrides previously set DEBUG variable : \n\n```\n$ DEBUG=foo node -e 'var dbg = require(\"debug\"); dbg.enable(\"bar\"); console.log(dbg.enabled(\"foo\"))'\n=> false\n```\n\n`disable()`\n\nWill disable all namespaces. The functions returns the namespaces currently\nenabled (and skipped). This can be useful if you want to disable debugging\ntemporarily without knowing what was enabled to begin with.\n\nFor example:\n\n```js\nlet debug = require('debug');\ndebug.enable('foo:*,-foo:bar');\nlet namespaces = debug.disable();\ndebug.enable(namespaces);\n```\n\nNote: There is no guarantee that the string will be identical to the initial\nenable string, but semantically they will be identical.\n\n## Checking whether a debug target is enabled\n\nAfter you've created a debug instance, you can determine whether or not it is\nenabled by checking the `enabled` property:\n\n```javascript\nconst debug = require('debug')('http');\n\nif (debug.enabled) {\n // do stuff...\n}\n```\n\nYou can also manually toggle this property to force the debug instance to be\nenabled or disabled.\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n\n## Backers\n\nSupport us with a monthly donation and help us continue our activities. 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[[Become a sponsor](https://opencollective.com/debug#sponsor)]\n\n<a href=\"https://opencollective.com/debug/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/5/avatar.svg\"></a>\n<a 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target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/12/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/13/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/13/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/14/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/14/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/15/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/15/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/16/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/16/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/17/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/17/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/18/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# gaze [](https://travis-ci.org/shama/gaze) [](https://ci.appveyor.com/project/shama/gaze)\n\nA globbing `fs.watch` wrapper built from the best parts of other fine watch libs. \nCompatible with Node.js >= 4.x, Windows, macOS, and Linux.\n\n\n\n[](https://nodei.co/npm/gaze/)\n\n## Usage\nInstall the module with: `npm install gaze` or place into your `package.json`\nand run `npm install`.\n\n```javascript\nvar gaze = require('gaze');\n\n// Watch all .js files/dirs in process.cwd()\ngaze('**/*.js', function(err, watcher) {\n // Files have all started watching\n // watcher === this\n\n // Get all watched files\n var watched = this.watched();\n\n // On file changed\n this.on('changed', function(filepath) {\n console.log(filepath + ' was changed');\n });\n\n // On file added\n this.on('added', function(filepath) {\n console.log(filepath + ' was added');\n });\n\n // On file deleted\n this.on('deleted', function(filepath) {\n console.log(filepath + ' was deleted');\n });\n\n // On changed/added/deleted\n this.on('all', function(event, filepath) {\n console.log(filepath + ' was ' + event);\n });\n\n // Get watched files with relative paths\n var files = this.relative();\n});\n\n// Also accepts an array of patterns\ngaze(['stylesheets/*.css', 'images/**/*.png'], function() {\n // Add more patterns later to be watched\n this.add(['js/*.js']);\n});\n```\n\n### Alternate Interface\n\n```javascript\nvar Gaze = require('gaze').Gaze;\n\nvar gaze = new Gaze('**/*');\n\n// Files have all started watching\ngaze.on('ready', function(watcher) { });\n\n// A file has been added/changed/deleted has occurred\ngaze.on('all', function(event, filepath) { });\n```\n\n### Errors\n\n```javascript\ngaze('**/*', function(error, watcher) {\n if (error) {\n // Handle error if it occurred while starting up\n }\n});\n\n// Or with the alternative interface\nvar gaze = new Gaze();\ngaze.on('error', function(error) {\n // Handle error here\n});\ngaze.add('**/*');\n```\n\n### Minimatch / Glob\n\nSee [isaacs's `minimatch`](https://github.com/isaacs/minimatch) for more\ninformation on glob patterns.\n\n## Documentation\n\n### gaze([patterns, options, callback])\n\n* `patterns` {`String`|`Array`} File patterns to be matched\n* `options` {`Object`}\n* `callback` {`Function`}\n * `err` {`Error` | `null`}\n * `watcher` {`Object`} Instance of the `Gaze` watcher\n\n### Class: `gaze.Gaze`\n\nCreate a `Gaze` object by instancing the `gaze.Gaze` class.\n\n```javascript\nvar Gaze = require('gaze').Gaze;\nvar gaze = new Gaze(pattern, options, callback);\n```\n\n#### Properties\n\n* `options` The options object passed in.\n * `interval` {integer} Interval to pass to `fs.watchFile`\n * `debounceDelay` {integer} Delay for events called in succession for the same\n file/event in milliseconds\n * `mode` {string} Force the watch mode. Either `'auto'` (default), `'watch'` (force native events), or `'poll'` (force stat polling).\n * `cwd` {string} The current working directory to base file patterns from. Default is `process.cwd()`.\n\n#### Events\n\n* `ready(watcher)` When files have been globbed and watching has begun.\n* `all(event, filepath)` When an `added`, `changed`, `renamed`, or `deleted` event occurs.\n* `added(filepath)` When a file has been added to a watch directory.\n* `changed(filepath)` When a file has been changed.\n* `deleted(filepath)` When a file has been deleted.\n* `renamed(newPath, oldPath)` When a file has been renamed.\n* `end()` When the watcher is closed and watches have been removed.\n* `error(err)` When an error occurs.\n* `nomatch` When no files have been matched.\n\n#### Methods\n\n* `emit(event, [...])` Wrapper for `EventEmitter.emit`.\n `added`|`changed`|`renamed`|`deleted` events will also trigger the `all` event.\n* `close()` Unwatch all files and reset the watch instance.\n* `add(patterns, callback)` Adds file(s) `patterns` to be watched.\n* `remove(filepath)` Removes a file or directory from being watched. Does not\n recurse directories.\n* `watched()` Returns the currently watched files.\n* `relative([dir, unixify])` Returns the currently watched files with relative paths.\n * `dir` {string} Only return relative files for this directory.\n * `unixify` {boolean} Return paths with `/` instead of `\\\\` if on Windows.\n\n## Similar Projects\n\nOther great watch libraries to try are:\n\n* [paulmillr's `chokidar`](https://github.com/paulmillr/chokidar)\n* [amasad's `sane`](https://github.com/amasad/sane)\n* [mikeal's `watch`](https://github.com/mikeal/watch)\n* [github's `pathwatcher`](https://github.com/atom/node-pathwatcher)\n* [bevry's `watchr`](https://github.com/bevry/watchr)\n\n## Contributing\nIn lieu of a formal styleguide, take care to maintain the existing coding style.\nAdd unit tests for any new or changed functionality. Lint and test your code\nusing [grunt](http://gruntjs.com/).\n\n## Release History\n* 1.1.3 - Fix for Node 10 support (@aredridel). Officially dropping support for Node < 4.\n* 1.1.2 - Prevent more `ENOENT` errors from escaping (@alexgorbatchev).\n* 1.1.1 - Prevent `fs.watch` errors from escaping error handler (@rosen-vladimirov). Fix `_addToWatched` without `path.sep` (@wyicwx).\n* 1.1.0 - Update to `globule@1.0.0` with `minimatch >= 3.0.0`.\n* 1.0.0 - Revert back to 0.5.2. Drop support for Node.js v0.8. Fix for `maxListeners`. Update `globule` to `0.2.0`.\n* 0.6.4 - Catch and emit `error` from `readdir` (@oconnore). Fix for `0 maxListeners`. Use `graceful-fs` to avoid `EMFILE` errors in other places `fs` is used. Better method to determine if `pathwatcher` was built. Fix keeping process alive too much, only init `pathwatcher` if a file is being watched. Set min required to Windows Vista when building on Windows (@pvolok).\n* 0.6.3 - Add support for Node.js v0.11\n* 0.6.2 - Fix argument error with `watched()`. Fix for erroneous `added` events on folders. Ignore `msvs` build error 4244.\n* 0.6.1 - Fix for absolute paths.\n* 0.6.0 - Uses native OS events (fork of `pathwatcher`) but can fall back to stat polling. Everything is async to avoid blocking, including `relative()` and `watched()`. Better error handling. Update to `globule@0.2.0`. No longer watches `cwd` by default. Added `mode` option. Better `EMFILE` message. Avoids `ENOENT` errors with symlinks. All constructor arguments are optional.\n* 0.5.2 - Fix for `ENOENT` error with non-existent symlinks [BACKPORTED].\n* 0.5.1 - Use `setImmediate` (`process.nextTick` for Node.js v0.8) to defer `ready`/`nomatch` events (@amasad).\n* 0.5.0 - Process is now kept alive while watching files. Emits a `nomatch` event when no files are matching.\n* 0.4.3 - Track file additions in newly created folders (@brett-shwom).\n* 0.4.2 - Fix `.remove()` method to remove a single file in a directory (@kaelzhang). Fixing “`Cannot call method 'call' of undefined`” (@krasimir). Track new file additions within folders (@brett-shwom).\n* 0.4.1 - Fix `watchDir` not respecting close in race condition (@chrisirhc).\n* 0.4.0 - Drop support for Node.js v0.6. Use `globule` for file matching. Avoid Node.js v0.10 `path.resolve`/`join` errors. Register new files when added to non-existent folder. Multiple instances can now poll the same files (@jpommerening).\n* 0.3.4 - Code clean up. Fix “`path must be strings`” errors (@groner). Fix incorrect `added` events (@groner).\n* 0.3.3 - Fix for multiple patterns with negate.\n* 0.3.2 - Emit `end` before `removeAllListeners`.\n* 0.3.1 - Fix `added` events within subfolder patterns.\n* 0.3.0 - Handle safewrite events, `forceWatchMethod` option removed, bug fixes and watch optimizations (@rgaskill).\n* 0.2.2 - Fix issue where subsequent `add` calls dont get watched (@samcday). `removeAllListeners` on `close`.\n* 0.2.1 - Fix issue with invalid `added` events in current working dir.\n* 0.2.0 - Support and mark folders with `path.sep`. Add `forceWatchMethod` option. Support `renamed` events.\n* 0.1.6 - Recognize the `cwd` option properly\n* 0.1.5 - Catch “`too many open file`” errors\n* 0.1.4 - Really fix the race condition with 2 watches\n* 0.1.3 - Fix race condition with 2 watches\n* 0.1.2 - Read triggering changed event fix\n* 0.1.1 - Minor fixes\n* 0.1.0 - Initial release\n\n## License\nCopyright (c) 2018 Kyle Robinson Young \nLicensed under the MIT license.\n# content-type\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nCreate and parse HTTP Content-Type header according to RFC 7231\n\n## Installation\n\n```sh\n$ npm install content-type\n```\n\n## API\n\n```js\nvar contentType = require('content-type')\n```\n\n### contentType.parse(string)\n\n```js\nvar obj = contentType.parse('image/svg+xml; charset=utf-8')\n```\n\nParse a content type string. This will return an object with the following\nproperties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):\n\n - `type`: The media type (the type and subtype, always lower case).\n Example: `'image/svg+xml'`\n\n - `parameters`: An object of the parameters in the media type (name of parameter\n always lower case). Example: `{charset: 'utf-8'}`\n\nThrows a `TypeError` if the string is missing or invalid.\n\n### contentType.parse(req)\n\n```js\nvar obj = contentType.parse(req)\n```\n\nParse the `content-type` header from the given `req`. Short-cut for\n`contentType.parse(req.headers['content-type'])`.\n\nThrows a `TypeError` if the `Content-Type` header is missing or invalid.\n\n### contentType.parse(res)\n\n```js\nvar obj = contentType.parse(res)\n```\n\nParse the `content-type` header set on the given `res`. Short-cut for\n`contentType.parse(res.getHeader('content-type'))`.\n\nThrows a `TypeError` if the `Content-Type` header is missing or invalid.\n\n### contentType.format(obj)\n\n```js\nvar str = contentType.format({type: 'image/svg+xml'})\n```\n\nFormat an object into a content type string. This will return a string of the\ncontent type for the given object with the following properties (examples are\nshown that produce the string `'image/svg+xml; charset=utf-8'`):\n\n - `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`\n\n - `parameters`: An object of the parameters in the media type (name of the\n parameter will be lower-cased). Example: `{charset: 'utf-8'}`\n\nThrows a `TypeError` if the object contains an invalid type or parameter names.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/content-type.svg\n[npm-url]: https://npmjs.org/package/content-type\n[node-version-image]: https://img.shields.io/node/v/content-type.svg\n[node-version-url]: http://nodejs.org/download/\n[travis-image]: https://img.shields.io/travis/jshttp/content-type/master.svg\n[travis-url]: https://travis-ci.org/jshttp/content-type\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-type/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/content-type\n[downloads-image]: https://img.shields.io/npm/dm/content-type.svg\n[downloads-url]: https://npmjs.org/package/content-type\n# set-value [](https://www.npmjs.com/package/set-value) [](https://npmjs.org/package/set-value) [](https://npmjs.org/package/set-value) [](https://travis-ci.org/jonschlinkert/set-value)\n\n> Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save set-value\n```\n\n## Usage\n\n```js\nvar set = require('set-value');\n\nvar obj = {};\nset(obj, 'a.b.c', 'd');\nconsole.log(obj);\n//=> {a: {b: c: 'd'}}\n```\n\n## About\n\n### Related projects\n\n* [assign-value](https://www.npmjs.com/package/assign-value): Assign a value or extend a deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/assign-value) | [homepage](https://github.com/jonschlinkert/assign-value \"Assign a value or extend a deeply nested property of an object using object path notation.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value \"Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\")\n* [merge-value](https://www.npmjs.com/package/merge-value): Similar to assign-value but deeply merges object values or nested values using object path/dot notation. | [homepage](https://github.com/jonschlinkert/merge-value \"Similar to assign-value but deeply merges object values or nested values using object path/dot notation.\")\n* [omit-value](https://www.npmjs.com/package/omit-value): Omit properties from an object or deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/omit-value) | [homepage](https://github.com/jonschlinkert/omit-value \"Omit properties from an object or deeply nested property of an object using object path notation.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [union-value](https://www.npmjs.com/package/union-value): Set an array of unique values as the property of an object. Supports setting deeply… [more](https://github.com/jonschlinkert/union-value) | [homepage](https://github.com/jonschlinkert/union-value \"Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.\")\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value \"Delete nested properties from an object using dot notation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 53 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [vadimdemedes](https://github.com/vadimdemedes) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 22, 2017._\n[](https://travis-ci.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf#info=devDependencies)\n\nThe [UNIX command](http://en.wikipedia.org/wiki/Rm_(Unix)) `rm -rf` for node.\n\nInstall with `npm install rimraf`, or just drop rimraf.js somewhere.\n\n## API\n\n`rimraf(f, [opts], callback)`\n\nThe first parameter will be interpreted as a globbing pattern for files. If you\nwant to disable globbing you can do so with `opts.disableGlob` (defaults to\n`false`). This might be handy, for instance, if you have filenames that contain\nglobbing wildcard characters.\n\nThe callback will be called with an error if there is one. Certain\nerrors are handled for you:\n\n* Windows: `EBUSY` and `ENOTEMPTY` - rimraf will back off a maximum of\n `opts.maxBusyTries` times before giving up, adding 100ms of wait\n between each attempt. The default `maxBusyTries` is 3.\n* `ENOENT` - If the file doesn't exist, rimraf will return\n successfully, since your desired outcome is already the case.\n* `EMFILE` - Since `readdir` requires opening a file descriptor, it's\n possible to hit `EMFILE` if too many file descriptors are in use.\n In the sync case, there's nothing to be done for this. But in the\n async case, rimraf will gradually back off with timeouts up to\n `opts.emfileWait` ms, which defaults to 1000.\n\n## options\n\n* unlink, chmod, stat, lstat, rmdir, readdir,\n unlinkSync, chmodSync, statSync, lstatSync, rmdirSync, readdirSync\n\n In order to use a custom file system library, you can override\n specific fs functions on the options object.\n\n If any of these functions are present on the options object, then\n the supplied function will be used instead of the default fs\n method.\n\n Sync methods are only relevant for `rimraf.sync()`, of course.\n\n For example:\n\n ```javascript\n var myCustomFS = require('some-custom-fs')\n\n rimraf('some-thing', myCustomFS, callback)\n ```\n\n* maxBusyTries\n\n If an `EBUSY`, `ENOTEMPTY`, or `EPERM` error code is encountered\n on Windows systems, then rimraf will retry with a linear backoff\n wait of 100ms longer on each try. The default maxBusyTries is 3.\n\n Only relevant for async usage.\n\n* emfileWait\n\n If an `EMFILE` error is encountered, then rimraf will retry\n repeatedly with a linear backoff of 1ms longer on each try, until\n the timeout counter hits this max. The default limit is 1000.\n\n If you repeatedly encounter `EMFILE` errors, then consider using\n [graceful-fs](http://npm.im/graceful-fs) in your program.\n\n Only relevant for async usage.\n\n* glob\n\n Set to `false` to disable [glob](http://npm.im/glob) pattern\n matching.\n\n Set to an object to pass options to the glob module. The default\n glob options are `{ nosort: true, silent: true }`.\n\n Glob version 6 is used in this module.\n\n Relevant for both sync and async usage.\n\n* disableGlob\n\n Set to any non-falsey value to disable globbing entirely.\n (Equivalent to setting `glob: false`.)\n\n## rimraf.sync\n\nIt can remove stuff synchronously, too. But that's not so good. Use\nthe async API. It's better.\n\n## CLI\n\nIf installed with `npm install rimraf -g` it can be used as a global\ncommand `rimraf <path> [<path> ...]` which is useful for cross platform support.\n\n## mkdirp\n\nIf you need to create a directory recursively, check out\n[mkdirp](https://github.com/substack/node-mkdirp).\n## Caseless -- wrap an object to set and get property with caseless semantics but also preserve caseing.\n\nThis library is incredibly useful when working with HTTP headers. It allows you to get/set/check for headers in a caseless manner while also preserving the caseing of headers the first time they are set.\n\n## Usage\n\n```javascript\nvar headers = {}\n , c = caseless(headers)\n ;\nc.set('a-Header', 'asdf')\nc.get('a-header') === 'asdf'\n```\n\n## has(key)\n\nHas takes a name and if it finds a matching header will return that header name with the preserved caseing it was set with.\n\n```javascript\nc.has('a-header') === 'a-Header'\n```\n\n## set(key, value[, clobber=true])\n\nSet is fairly straight forward except that if the header exists and clobber is disabled it will add `','+value` to the existing header.\n\n```javascript\nc.set('a-Header', 'fdas')\nc.set('a-HEADER', 'more', false)\nc.get('a-header') === 'fdsa,more'\n```\n\n## swap(key)\n\nSwaps the casing of a header with the new one that is passed in.\n\n```javascript\nvar headers = {}\n , c = caseless(headers)\n ;\nc.set('a-Header', 'fdas')\nc.swap('a-HEADER')\nc.has('a-header') === 'a-HEADER'\nheaders === {'a-HEADER': 'fdas'}\n```\n# y18n\n\n[![Build Status][travis-image]][travis-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n[![NPM version][npm-image]][npm-url]\n[![js-standard-style][standard-image]][standard-url]\n[](https://conventionalcommits.org)\n\nThe bare-bones internationalization library used by yargs.\n\nInspired by [i18n](https://www.npmjs.com/package/i18n).\n\n## Examples\n\n_simple string translation:_\n\n```js\nvar __ = require('y18n').__\n\nconsole.log(__('my awesome string %s', 'foo'))\n```\n\noutput:\n\n`my awesome string foo`\n\n_using tagged template literals_\n\n```js\nvar __ = require('y18n').__\nvar str = 'foo'\n\nconsole.log(__`my awesome string ${str}`)\n```\n\noutput:\n\n`my awesome string foo`\n\n_pluralization support:_\n\n```js\nvar __n = require('y18n').__n\n\nconsole.log(__n('one fish %s', '%d fishes %s', 2, 'foo'))\n```\n\noutput:\n\n`2 fishes foo`\n\n## JSON Language Files\n\nThe JSON language files should be stored in a `./locales` folder.\nFile names correspond to locales, e.g., `en.json`, `pirate.json`.\n\nWhen strings are observed for the first time they will be\nadded to the JSON file corresponding to the current locale.\n\n## Methods\n\n### require('y18n')(config)\n\nCreate an instance of y18n with the config provided, options include:\n\n* `directory`: the locale directory, default `./locales`.\n* `updateFiles`: should newly observed strings be updated in file, default `true`.\n* `locale`: what locale should be used.\n* `fallbackToLanguage`: should fallback to a language-only file (e.g. `en.json`)\n be allowed if a file matching the locale does not exist (e.g. `en_US.json`),\n default `true`.\n\n### y18n.\\_\\_(str, arg, arg, arg)\n\nPrint a localized string, `%s` will be replaced with `arg`s.\n\nThis function can also be used as a tag for a template literal. You can use it\nlike this: <code>__`hello ${'world'}`</code>. This will be equivalent to\n`__('hello %s', 'world')`.\n\n### y18n.\\_\\_n(singularString, pluralString, count, arg, arg, arg)\n\nPrint a localized string with appropriate pluralization. If `%d` is provided\nin the string, the `count` will replace this placeholder.\n\n### y18n.setLocale(str)\n\nSet the current locale being used.\n\n### y18n.getLocale()\n\nWhat locale is currently being used?\n\n### y18n.updateLocale(obj)\n\nUpdate the current locale with the key value pairs in `obj`.\n\n## License\n\nISC\n\n[travis-url]: https://travis-ci.org/yargs/y18n\n[travis-image]: https://img.shields.io/travis/yargs/y18n.svg\n[coveralls-url]: https://coveralls.io/github/yargs/y18n\n[coveralls-image]: https://img.shields.io/coveralls/yargs/y18n.svg\n[npm-url]: https://npmjs.org/package/y18n\n[npm-image]: https://img.shields.io/npm/v/y18n.svg\n[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg\n[standard-url]: https://github.com/feross/standard\n# object.pick [](https://www.npmjs.com/package/object.pick) [](https://npmjs.org/package/object.pick) [](https://npmjs.org/package/object.pick) [](https://travis-ci.org/jonschlinkert/object.pick)\n\n> Returns a filtered copy of an object with only the specified keys, similar to `_.pick` from lodash / underscore.\n\nYou might also be interested in [object.omit](https://github.com/jonschlinkert/object.omit).\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save object.pick\n```\n\n## benchmarks\n\nThis is the [fastest implementation](http://jsperf.com/pick-props) I tested. Pull requests welcome!\n\n## Usage\n\n```js\nvar pick = require('object.pick');\n\npick({a: 'a', b: 'b'}, 'a')\n//=> {a: 'a'}\n\npick({a: 'a', b: 'b', c: 'c'}, ['a', 'b'])\n//=> {a: 'a', b: 'b'}\n```\n\n## About\n\n### Related projects\n\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/object.pick/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 27, 2016._\nglob-parent [](https://travis-ci.org/es128/glob-parent) [](https://coveralls.io/r/es128/glob-parent?branch=master)\n======\nJavascript module to extract the non-magic parent path from a glob string.\n\n[](https://nodei.co/npm/glob-parent/)\n[](https://nodei.co/npm-dl/glob-parent/)\n\nUsage\n-----\n```sh\nnpm install glob-parent --save\n```\n\n**Examples**\n\n```js\nvar globParent = require('glob-parent');\n\nglobParent('path/to/*.js'); // 'path/to'\nglobParent('/root/path/to/*.js'); // '/root/path/to'\nglobParent('/*.js'); // '/'\nglobParent('*.js'); // '.'\nglobParent('**/*.js'); // '.'\nglobParent('path/{to,from}'); // 'path'\nglobParent('path/!(to|from)'); // 'path'\nglobParent('path/?(to|from)'); // 'path'\nglobParent('path/+(to|from)'); // 'path'\nglobParent('path/*(to|from)'); // 'path'\nglobParent('path/@(to|from)'); // 'path'\nglobParent('path/**/*'); // 'path'\n\n// if provided a non-glob path, returns the nearest dir\nglobParent('path/foo/bar.js'); // 'path/foo'\nglobParent('path/foo/'); // 'path/foo'\nglobParent('path/foo'); // 'path' (see issue #3 for details)\n```\n\n## Escaping\n\nThe following characters have special significance in glob patterns and must be escaped if you want them to be treated as regular path characters:\n\n- `?` (question mark)\n- `*` (star)\n- `|` (pipe)\n- `(` (opening parenthesis)\n- `)` (closing parenthesis)\n- `{` (opening curly brace)\n- `}` (closing curly brace)\n- `[` (opening bracket)\n- `]` (closing bracket)\n\n**Example**\n\n```js\nglobParent('foo/[bar]/') // 'foo'\nglobParent('foo/\\\\[bar]/') // 'foo/[bar]'\n```\n\n## Limitations\n\n#### Braces & Brackets\nThis library attempts a quick and imperfect method of determining which path\nparts have glob magic without fully parsing/lexing the pattern. There are some\nadvanced use cases that can trip it up, such as nested braces where the outer\npair is escaped and the inner one contains a path separator. If you find\nyourself in the unlikely circumstance of being affected by this or need to\nensure higher-fidelity glob handling in your library, it is recommended that you\npre-process your input with [expand-braces] and/or [expand-brackets].\n\n#### Windows\nBackslashes are not valid path separators for globs. If a path with backslashes\nis provided anyway, for simple cases, glob-parent will replace the path\nseparator for you and return the non-glob parent path (now with\nforward-slashes, which are still valid as Windows path separators).\n\nThis cannot be used in conjunction with escape characters.\n\n```js\n// BAD\nglobParent('C:\\\\Program Files \\\\(x86\\\\)\\\\*.ext') // 'C:/Program Files /(x86/)'\n\n// GOOD\nglobParent('C:/Program Files\\\\(x86\\\\)/*.ext') // 'C:/Program Files (x86)'\n```\n\nIf you are using escape characters for a pattern without path parts (i.e.\nrelative to `cwd`), prefix with `./` to avoid confusing glob-parent.\n\n```js\n// BAD\nglobParent('foo \\\\[bar]') // 'foo '\nglobParent('foo \\\\[bar]*') // 'foo '\n\n// GOOD\nglobParent('./foo \\\\[bar]') // 'foo [bar]'\nglobParent('./foo \\\\[bar]*') // '.'\n```\n\nChange Log\n----------\n[See release notes page on GitHub](https://github.com/es128/glob-parent/releases)\n\nLicense\n-------\n[ISC](https://raw.github.com/es128/glob-parent/master/LICENSE)\n\n[expand-braces]: https://github.com/jonschlinkert/expand-braces\n[expand-brackets]: https://github.com/jonschlinkert/expand-brackets\n# has-symbols <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\nDetermine if the JS environment has Symbol support. Supports spec, or shams.\n\n## Example\n\n```js\nvar hasSymbols = require('has-symbols');\n\nhasSymbols() === true; // if the environment has native Symbol support. Not polyfillable, not forgeable.\n\nvar hasSymbolsKinda = require('has-symbols/shams');\nhasSymbolsKinda() === true; // if the environment has a Symbol sham that mostly follows the spec.\n```\n\n## Supported Symbol shams\n - get-own-property-symbols [npm](https://www.npmjs.com/package/get-own-property-symbols) | [github](https://github.com/WebReflection/get-own-property-symbols)\n - core-js [npm](https://www.npmjs.com/package/core-js) | [github](https://github.com/zloirock/core-js)\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[1]: https://npmjs.org/package/has-symbols\n[2]: http://versionbadg.es/ljharb/has-symbols.svg\n[3]: https://travis-ci.org/ljharb/has-symbols.svg\n[4]: https://travis-ci.org/ljharb/has-symbols\n[5]: https://david-dm.org/ljharb/has-symbols.svg\n[6]: https://david-dm.org/ljharb/has-symbols\n[7]: https://david-dm.org/ljharb/has-symbols/dev-status.svg\n[8]: https://david-dm.org/ljharb/has-symbols#info=devDependencies\n[9]: https://ci.testling.com/ljharb/has-symbols.png\n[10]: https://ci.testling.com/ljharb/has-symbols\n[11]: https://nodei.co/npm/has-symbols.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/has-symbols.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/has-symbols.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=has-symbols\naws-sign\n========\n\nAWS signing. Originally pulled from LearnBoost/knox, maintained as vendor in request, now a standalone module.\n# clone-deep [](https://www.npmjs.com/package/clone-deep) [](https://npmjs.org/package/clone-deep) [](https://npmjs.org/package/clone-deep) [](https://travis-ci.org/jonschlinkert/clone-deep)\n\n> Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save clone-deep\n```\n\n## Usage\n\n```js\nvar cloneDeep = require('clone-deep');\n\nvar obj = {a: 'b'};\nvar arr = [obj];\n\nvar copy = cloneDeep(arr);\nobj.c = 'd';\n\nconsole.log(copy);\n//=> [{a: 'b'}]\n\nconsole.log(arr);\n//=> [{a: 'b', c: 'd'}]\n```\n\n## Heads up!\n\nThe `instanceClone` function is invoked to clone objects that are not \"plain\" objects (as defined by [isPlainObject](#isPlainObject)`isPlainObject`) if it is provided. If `instanceClone` is not specified, it will not attempt to clone non-plain objects, and will copy the object reference.\n\n## Attribution\n\nBased on [mout's](https://github.com/mout/mout) implementation of deepClone.\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n* [shallow-clone](https://www.npmjs.com/package/shallow-clone): Make a shallow clone of an object, array or primitive. | [homepage](https://github.com/jonschlinkert/shallow-clone \"Make a shallow clone of an object, array or primitive.\")\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 16, 2017._\n# HPACK.js\n\n[](http://travis-ci.org/indutny/hpack.js)\n[](http://badge.fury.io/js/hpack.js)\n\nPlain-JS implementation of [HPACK][0].\n\n## Usage\n\n```javascript\nvar hpack = require('hpack.js');\n\nvar comp = hpack.compressor.create({ table: { size: 256 } });\nvar decomp = hpack.decompressor.create({ table: { size: 256 } });\n\ncomp.write([ { name: 'host', value: 'localhost' } ]);\nvar raw = comp.read();\nconsole.log(raw);\n// <Buffer 66 86 a0 e4 1d 13 9d 09>\n\ndecomp.write(raw);\ndecomp.execute();\nconsole.log(decomp.read());\n// { name: 'host', value: 'localhost', neverIndex: false }\n```\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: https://tools.ietf.org/html/rfc7541\nnode-asn1 is a library for encoding and decoding ASN.1 datatypes in pure JS.\nCurrently BER encoding is supported; at some point I'll likely have to do DER.\n\n## Usage\n\nMostly, if you're *actually* needing to read and write ASN.1, you probably don't\nneed this readme to explain what and why. If you have no idea what ASN.1 is,\nsee this: ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc\n\nThe source is pretty much self-explanatory, and has read/write methods for the\ncommon types out there.\n\n### Decoding\n\nThe following reads an ASN.1 sequence with a boolean.\n\n var Ber = require('asn1').Ber;\n\n var reader = new Ber.Reader(Buffer.from([0x30, 0x03, 0x01, 0x01, 0xff]));\n\n reader.readSequence();\n console.log('Sequence len: ' + reader.length);\n if (reader.peek() === Ber.Boolean)\n console.log(reader.readBoolean());\n\n### Encoding\n\nThe following generates the same payload as above.\n\n var Ber = require('asn1').Ber;\n\n var writer = new Ber.Writer();\n\n writer.startSequence();\n writer.writeBoolean(true);\n writer.endSequence();\n\n console.log(writer.buffer);\n\n## Installation\n\n npm install asn1\n\n## License\n\nMIT.\n\n## Bugs\n\nSee <https://github.com/joyent/node-asn1/issues>.\nanymatch [](https://travis-ci.org/micromatch/anymatch) [](https://coveralls.io/r/micromatch/anymatch?branch=master)\n======\nJavascript module to match a string against a regular expression, glob, string,\nor function that takes the string as an argument and returns a truthy or falsy\nvalue. The matcher can also be an array of any or all of these. Useful for\nallowing a very flexible user-defined config to define things like file paths.\n\n__Note: This module has Bash-parity, please be aware that Windows-style backslashes are not supported as separators. See https://github.com/micromatch/micromatch#backslashes for more information.__\n\n[](https://nodei.co/npm/anymatch/)\n[](https://nodei.co/npm-dl/anymatch/)\n\nUsage\n-----\n```sh\nnpm install anymatch --save\n```\n\n#### anymatch (matchers, testString, [returnIndex], [startIndex], [endIndex])\n* __matchers__: (_Array|String|RegExp|Function_)\nString to be directly matched, string with glob patterns, regular expression\ntest, function that takes the testString as an argument and returns a truthy\nvalue if it should be matched, or an array of any number and mix of these types.\n* __testString__: (_String|Array_) The string to test against the matchers. If\npassed as an array, the first element of the array will be used as the\n`testString` for non-function matchers, while the entire array will be applied\nas the arguments for function matchers.\n* __returnIndex__: (_Boolean [optional]_) If true, return the array index of\nthe first matcher that that testString matched, or -1 if no match, instead of a\nboolean result.\n* __startIndex, endIndex__: (_Integer [optional]_) Can be used to define a\nsubset out of the array of provided matchers to test against. Can be useful\nwith bound matcher functions (see below). When used with `returnIndex = true`\npreserves original indexing. Behaves the same as `Array.prototype.slice` (i.e.\nincludes array members up to, but not including endIndex).\n\n```js\nvar anymatch = require('anymatch');\n\nvar matchers = [\n\t'path/to/file.js',\n\t'path/anyjs/**/*.js',\n\t/foo\\.js$/,\n\tfunction (string) {\n\t\treturn string.indexOf('bar') !== -1 && string.length > 10\n\t}\n];\n\nanymatch(matchers, 'path/to/file.js'); // true\nanymatch(matchers, 'path/anyjs/baz.js'); // true\nanymatch(matchers, 'path/to/foo.js'); // true\nanymatch(matchers, 'path/to/bar.js'); // true\nanymatch(matchers, 'bar.js'); // false\n\n// returnIndex = true\nanymatch(matchers, 'foo.js', true); // 2\nanymatch(matchers, 'path/anyjs/foo.js', true); // 1\n\n// skip matchers\nanymatch(matchers, 'path/to/file.js', false, 1); // false\nanymatch(matchers, 'path/anyjs/foo.js', true, 2, 3); // 2\nanymatch(matchers, 'path/to/bar.js', true, 0, 3); // -1\n\n// using globs to match directories and their children\nanymatch('node_modules', 'node_modules'); // true\nanymatch('node_modules', 'node_modules/somelib/index.js'); // false\nanymatch('node_modules/**', 'node_modules/somelib/index.js'); // true\nanymatch('node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // false\nanymatch('**/node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // true\n```\n\n#### anymatch (matchers)\nYou can also pass in only your matcher(s) to get a curried function that has\nalready been bound to the provided matching criteria. This can be used as an\n`Array.prototype.filter` callback.\n\n```js\nvar matcher = anymatch(matchers);\n\nmatcher('path/to/file.js'); // true\nmatcher('path/anyjs/baz.js', true); // 1\nmatcher('path/anyjs/baz.js', true, 2); // -1\n\n['foo.js', 'bar.js'].filter(matcher); // ['foo.js']\n```\n\nChange Log\n----------\n[See release notes page on GitHub](https://github.com/micromatch/anymatch/releases)\n\nNOTE: As of v2.0.0, [micromatch](https://github.com/jonschlinkert/micromatch) moves away from minimatch-parity and inline with Bash. This includes handling backslashes differently (see https://github.com/micromatch/micromatch#backslashes for more information).\n\nNOTE: As of v1.2.0, anymatch uses [micromatch](https://github.com/jonschlinkert/micromatch)\nfor glob pattern matching. Issues with glob pattern matching should be\nreported directly to the [micromatch issue tracker](https://github.com/jonschlinkert/micromatch/issues).\n\nLicense\n-------\n[ISC](https://raw.github.com/micromatch/anymatch/master/LICENSE)\n# forwarded\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nParse HTTP X-Forwarded-For header\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install forwarded\n```\n\n## API\n\n```js\nvar forwarded = require('forwarded')\n```\n\n### forwarded(req)\n\n```js\nvar addresses = forwarded(req)\n```\n\nParse the `X-Forwarded-For` header from the request. Returns an array\nof the addresses, including the socket address for the `req`, in reverse\norder (i.e. index `0` is the socket address and the last index is the\nfurthest address, typically the end-user).\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/forwarded.svg\n[npm-url]: https://npmjs.org/package/forwarded\n[node-version-image]: https://img.shields.io/node/v/forwarded.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/forwarded/master.svg\n[travis-url]: https://travis-ci.org/jshttp/forwarded\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/forwarded/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/forwarded?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/forwarded.svg\n[downloads-url]: https://npmjs.org/package/forwarded\n# watchpack\n\nWrapper library for directory and file watching.\n\n[](https://travis-ci.org/webpack/watchpack) [](https://ci.appveyor.com/project/sokra/watchpack/branch/master) [![Test coverage][coveralls-image]][coveralls-url]\n\n## Concept\n\nwatchpack high level API doesn't map directly to watchers. Instead a three level architecture ensures that for each directory only a single watcher exists.\n\n* The high level API requests `DirectoryWatchers` from a `WatcherManager`, which ensures that only a single `DirectoryWatcher` per directory is created.\n* A user-faced `Watcher` can be obtained from a `DirectoryWatcher` and provides a filtered view on the `DirectoryWatcher`.\n* Reference-counting is used on the `DirectoryWatcher` and `Watcher` to decide when to close them.\n* The real watchers (currently chokidar) are created by the `DirectoryWatcher`.\n* Files are never watched directly. This should keep the watcher count low.\n* Watching can be started in the past. This way watching can start after file reading.\n* Symlinks are not followed, instead the symlink is watched.\n\n## API\n\n``` javascript\nvar Watchpack = require(\"watchpack\");\n\nvar wp = new Watchpack({\n\t// options:\n\taggregateTimeout: 1000\n\t// fire \"aggregated\" event when after a change for 1000ms no additional change occurred\n\t// aggregated defaults to undefined, which doesn't fire an \"aggregated\" event\n\n\tpoll: true\n\t// poll: true - use polling with the default interval\n\t// poll: 10000 - use polling with an interval of 10s\n\t// poll defaults to undefined, which prefer native watching methods\n\t// Note: enable polling when watching on a network path\n\n\tignored: /node_modules/,\n\t// anymatch-compatible definition of files/paths to be ignored\n\t// see https://github.com/paulmillr/chokidar#path-filtering\n});\n\n// Watchpack.prototype.watch(string[] files, string[] directories, [number startTime])\nwp.watch(listOfFiles, listOfDirectories, Date.now() - 10000);\n// starts watching these files and directories\n// calling this again will override the files and directories\n\nwp.on(\"change\", function(filePath, mtime) {\n\t// filePath: the changed file\n\t// mtime: last modified time for the changed file\n});\n\nwp.on(\"aggregated\", function(changes) {\n\t// changes: an array of all changed files\n});\n\n// Watchpack.prototype.pause()\nwp.pause();\n// stops emitting events, but keeps watchers open\n// next \"watch\" call can reuse the watchers\n\n// Watchpack.prototype.close()\nwp.close();\n// stops emitting events and closes all watchers\n\n// Watchpack.prototype.getTimes()\nvar fileTimes = wp.getTimes();\n// returns an object with all know change times for files\n// this include timestamps from files not directly watched\n// key: absolute path, value: timestamp as number\n```\n\n[coveralls-url]: https://coveralls.io/r/webpack/watchpack/\n[coveralls-image]: https://img.shields.io/coveralls/webpack/watchpack.svg\n# HTTP Deceiver\n\n[](http://travis-ci.org/indutny/http-deceiver)\n[](http://badge.fury.io/js/http-deceiver)\n\nDeceive!\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# Dynamic import support in acorn\n\nThis is plugin for [Acorn](http://marijnhaverbeke.nl/acorn/) - a tiny, fast JavaScript parser, written completely in JavaScript.\n\nFor more information, check out the [proposal repo](https://github.com/tc39/proposal-dynamic-import).\n\n## Usage\n\nImporting this module gives you a plugin that can be used to extend an Acorn parser:\n\n```js\nimport Parser from 'acorn';\nimport dynamicImport from 'acorn-dynamic-import';\n\nParser.extend(dynamicImport).parse('import(\"something\");');\n```\n\nTo extend the AST walker for dynamic imports, you can injecting the new node type into [`acorn-walk`](https://www.npmjs.com/package/acorn-walk) like this:\n\n```js\nimport inject from 'acorn-dynamic-import/lib/walk';\nimport * as acornWalk from 'acorn-walk';\n\nconst walk = inject(acornWalk);\n```\n\n## License\n\nThis plugin is issued under the [MIT license](./LICENSE).\n# once\n\nOnly call a function once.\n\n## usage\n\n```javascript\nvar once = require('once')\n\nfunction load (file, cb) {\n cb = once(cb)\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nOr add to the Function.prototype in a responsible way:\n\n```javascript\n// only has to be done once\nrequire('once').proto()\n\nfunction load (file, cb) {\n cb = cb.once()\n loader.load('file')\n loader.once('load', cb)\n loader.once('error', cb)\n}\n```\n\nIronically, the prototype feature makes this module twice as\ncomplicated as necessary.\n\nTo check whether you function has been called, use `fn.called`. Once the\nfunction is called for the first time the return value of the original\nfunction is saved in `fn.value` and subsequent calls will continue to\nreturn this value.\n\n```javascript\nvar once = require('once')\n\nfunction load (cb) {\n cb = once(cb)\n var stream = createStream()\n stream.once('data', cb)\n stream.once('end', function () {\n if (!cb.called) cb(new Error('not found'))\n })\n}\n```\n\n## `once.strict(func)`\n\nThrow an error if the function is called twice.\n\nSome functions are expected to be called only once. Using `once` for them would\npotentially hide logical errors.\n\nIn the example below, the `greet` function has to call the callback only once:\n\n```javascript\nfunction greet (name, cb) {\n // return is missing from the if statement\n // when no name is passed, the callback is called twice\n if (!name) cb('Hello anonymous')\n cb('Hello ' + name)\n}\n\nfunction log (msg) {\n console.log(msg)\n}\n\n// this will print 'Hello anonymous' but the logical error will be missed\ngreet(null, once(msg))\n\n// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time\ngreet(null, once.strict(msg))\n```\n# is-glob [](https://www.npmjs.com/package/is-glob) [](https://npmjs.org/package/is-glob) [](https://npmjs.org/package/is-glob) [](https://travis-ci.org/micromatch/is-glob) [](https://ci.appveyor.com/project/micromatch/is-glob)\n\n> Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-glob\n```\n\nYou might also be interested in [is-valid-glob](https://github.com/jonschlinkert/is-valid-glob) and [has-glob](https://github.com/jonschlinkert/has-glob).\n\n## Usage\n\n```js\nvar isGlob = require('is-glob');\n```\n\n### Default behavior\n\n**True**\n\nPatterns that have glob characters or regex patterns will return `true`:\n\n```js\nisGlob('!foo.js');\nisGlob('*.js');\nisGlob('**/abc.js');\nisGlob('abc/*.js');\nisGlob('abc/(aaa|bbb).js');\nisGlob('abc/[a-z].js');\nisGlob('abc/{a,b}.js');\n//=> true\n```\n\nExtglobs\n\n```js\nisGlob('abc/@(a).js');\nisGlob('abc/!(a).js');\nisGlob('abc/+(a).js');\nisGlob('abc/*(a).js');\nisGlob('abc/?(a).js');\n//=> true\n```\n\n**False**\n\nEscaped globs or extglobs return `false`:\n\n```js\nisGlob('abc/\\\\@(a).js');\nisGlob('abc/\\\\!(a).js');\nisGlob('abc/\\\\+(a).js');\nisGlob('abc/\\\\*(a).js');\nisGlob('abc/\\\\?(a).js');\nisGlob('\\\\!foo.js');\nisGlob('\\\\*.js');\nisGlob('\\\\*\\\\*/abc.js');\nisGlob('abc/\\\\*.js');\nisGlob('abc/\\\\(aaa|bbb).js');\nisGlob('abc/\\\\[a-z].js');\nisGlob('abc/\\\\{a,b}.js');\n//=> false\n```\n\nPatterns that do not have glob patterns return `false`:\n\n```js\nisGlob('abc.js');\nisGlob('abc/def/ghi.js');\nisGlob('foo.js');\nisGlob('abc/@.js');\nisGlob('abc/+.js');\nisGlob('abc/?.js');\nisGlob();\nisGlob(null);\n//=> false\n```\n\nArrays are also `false` (If you want to check if an array has a glob pattern, use [has-glob](https://github.com/jonschlinkert/has-glob)):\n\n```js\nisGlob(['**/*.js']);\nisGlob(['foo.js']);\n//=> false\n```\n\n### Option strict\n\nWhen `options.strict === false` the behavior is less strict in determining if a pattern is a glob. Meaning that\nsome patterns that would return `false` may return `true`. This is done so that matching libraries like [micromatch](https://github.com/micromatch/micromatch) have a chance at determining if the pattern is a glob or not.\n\n**True**\n\nPatterns that have glob characters or regex patterns will return `true`:\n\n```js\nisGlob('!foo.js', {strict: false});\nisGlob('*.js', {strict: false});\nisGlob('**/abc.js', {strict: false});\nisGlob('abc/*.js', {strict: false});\nisGlob('abc/(aaa|bbb).js', {strict: false});\nisGlob('abc/[a-z].js', {strict: false});\nisGlob('abc/{a,b}.js', {strict: false});\n//=> true\n```\n\nExtglobs\n\n```js\nisGlob('abc/@(a).js', {strict: false});\nisGlob('abc/!(a).js', {strict: false});\nisGlob('abc/+(a).js', {strict: false});\nisGlob('abc/*(a).js', {strict: false});\nisGlob('abc/?(a).js', {strict: false});\n//=> true\n```\n\n**False**\n\nEscaped globs or extglobs return `false`:\n\n```js\nisGlob('\\\\!foo.js', {strict: false});\nisGlob('\\\\*.js', {strict: false});\nisGlob('\\\\*\\\\*/abc.js', {strict: false});\nisGlob('abc/\\\\*.js', {strict: false});\nisGlob('abc/\\\\(aaa|bbb).js', {strict: false});\nisGlob('abc/\\\\[a-z].js', {strict: false});\nisGlob('abc/\\\\{a,b}.js', {strict: false});\n//=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [assemble](https://www.npmjs.com/package/assemble): Get the rocks out of your socks! Assemble makes you fast at creating web projects… [more](https://github.com/assemble/assemble) | [homepage](https://github.com/assemble/assemble \"Get the rocks out of your socks! Assemble makes you fast at creating web projects. Assemble is used by thousands of projects for rapid prototyping, creating themes, scaffolds, boilerplates, e-books, UI components, API documentation, blogs, building websit\")\n* [base](https://www.npmjs.com/package/base): Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks | [homepage](https://github.com/node-base/base \"Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks\")\n* [update](https://www.npmjs.com/package/update): Be scalable! Update is a new, open source developer framework and CLI for automating updates… [more](https://github.com/update/update) | [homepage](https://github.com/update/update \"Be scalable! Update is a new, open source developer framework and CLI for automating updates of any kind in code projects.\")\n* [verb](https://www.npmjs.com/package/verb): Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used… [more](https://github.com/verbose/verb) | [homepage](https://github.com/verbose/verb \"Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used on hundreds of projects of all sizes to generate everything from API docs to readmes.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 47 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 5 | [doowb](https://github.com/doowb) | \n| 1 | [phated](https://github.com/phated) | \n| 1 | [danhper](https://github.com/danhper) | \n| 1 | [paulmillr](https://github.com/paulmillr) | \n\n### Author\n\n**Jon Schlinkert**\n\n* [GitHub Profile](https://github.com/jonschlinkert)\n* [Twitter Profile](https://twitter.com/jonschlinkert)\n* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)\n\n### License\n\nCopyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on March 27, 2019._\n# loglevel [![NPM version][npm-image]][npm-url] [](https://www.npmjs.com/package/loglevel) [](https://travis-ci.org/pimterry/loglevel) [](https://coveralls.io/r/pimterry/loglevel?branch=master)\n\n[npm-image]: https://img.shields.io/npm/v/loglevel.svg?style=flat\n[npm-url]: https://npmjs.org/package/loglevel\n\nMinimal lightweight simple logging for JavaScript. loglevel replaces console.log() and friends with level-based logging and filtering, with none of console's downsides.\n\nThis is a barebones reliable everyday logging library. It does not do fancy things, it does not let you reconfigure appenders or add complex log filtering rules or boil tea (more's the pity), but it does have the all core functionality that you actually use:\n\n## Features\n\n### Simple\n\n* Log things at a given level (trace/debug/info/warn/error) to the console object (as seen in all modern browsers & node.js)\n* Filter logging by level (all the above or 'silent'), so you can disable all but error logging in production, and then run log.setLevel(\"trace\") in your console to turn it all back on for a furious debugging session\n* Single file, no dependencies, weighs in at 1.1KB minified and gzipped\n\n### Effective\n\n* Log methods gracefully fall back to simpler console logging methods if more specific ones aren't available: so calls to log.debug() go to console.debug() if possible, or console.log() if not\n* Logging calls still succeed even if there's no console object at all, so your site doesn't break when people visit with old browsers that don't support the console object (here's looking at you IE) and similar\n* This then comes together giving a consistent reliable API that works in every JavaScript environment with a console available, and never breaks anything anywhere else\n\n### Convenient\n\n* Log output keeps line numbers: most JS logging frameworks call console.log methods through wrapper functions, clobbering your stacktrace and making the extra info many browsers provide useless. We'll have none of that thanks.\n* It works with all the standard JavaScript loading systems out of the box (CommonJS, AMD, or just as a global)\n* Logging is filtered to \"warn\" level by default, to keep your live site clean in normal usage (or you can trivially re-enable everything with an initial log.enableAll() call)\n* Magically handles situations where console logging is not initially available (IE8/9), and automatically enables logging as soon as it does become available (when developer console is opened)\n* Extensible, to add other log redirection, filtering, or formatting functionality, while keeping all the above (except you will clobber your stacktrace, see Plugins below)\n\n## Downloading loglevel\n\nIf you're using NPM, you can just run `npm install loglevel`.\n\nAlternatively, loglevel is also available via [Bower](https://github.com/bower/bower) (`bower install loglevel`), as a [Webjar](http://www.webjars.org/), or an [Atmosphere package](https://atmospherejs.com/spacejamio/loglevel) (for Meteor)\n\nAlternatively if you just want to grab the file yourself, you can download either the current stable [production version][min] or the [development version][max] directly, or reference it remotely on unpkg at [`https://unpkg.com/loglevel/dist/loglevel.min.js`][cdn] (this will redirect to a latest version, use the resulting redirected URL if you want to pin that version).\n\nFinally, if you want to tweak loglevel to your own needs or you immediately need the cutting-edge version, clone this repo and see [Developing & Contributing](#developing--contributing) below for build instructions.\n\n[min]: https://raw.github.com/pimterry/loglevel/master/dist/loglevel.min.js\n[max]: https://raw.github.com/pimterry/loglevel/master/dist/loglevel.js\n[cdn]: https://unpkg.com/loglevel/dist/loglevel.min.js\n\n## Setting it up\n\nloglevel supports AMD (e.g. RequireJS), CommonJS (e.g. Node.js) and direct usage (e.g. loading globally with a <script> tag) loading methods. You should be able to do nearly anything, and then skip to the next section anyway and have it work. Just in case though, here's some specific examples that definitely do the right thing:\n\n### CommonsJS (e.g. Node)\n\n```javascript\nvar log = require('loglevel');\nlog.warn(\"unreasonably simple\");\n```\n\n### AMD (e.g. RequireJS)\n\n```javascript\ndefine(['loglevel'], function(log) {\n log.warn(\"dangerously convenient\");\n});\n```\n\n### Directly in your web page:\n\n```html\n<script src=\"loglevel.min.js\"></script>\n<script>\nlog.warn(\"too easy\");\n</script>\n```\n\n### As an ES6 module (assuming some transpilation step):\n\n```javascript\nimport * as log from 'loglevel';\nlog.warn(\"ultra-compatible\");\n```\n\n### With noConflict():\n\nIf you're using another JavaScript library that exposes a 'log' global, you can run into conflicts with loglevel. Similarly to jQuery, you can solve this by putting loglevel into no-conflict mode immediately after it is loaded onto the page. This resets to 'log' global to its value before loglevel was loaded (typically `undefined`), and returns the loglevel object, which you can then bind to another name yourself.\n\nFor example:\n\n```html\n<script src=\"loglevel.min.js\"></script>\n<script>\nvar logging = log.noConflict();\n\nlogging.warn(\"still pretty easy\");\n</script>\n```\n\n## Documentation\n\nThe loglevel API is extremely minimal. All methods are available on the root loglevel object, which it's suggested you name 'log' (this is the default if you import it in globally, and is what's set up in the above examples). The API consists of:\n\n* 5 actual logging methods, ordered and available as:\n * `log.trace(msg)`\n * `log.debug(msg)`\n * `log.info(msg)`\n * `log.warn(msg)`\n * `log.error(msg)`\n\n `log.log(msg)` is also available, as an alias for `log.debug(msg)`, to improve compatibility with `console`, and make migration easier.\n\n Exact output formatting of these will depend on the console available in the current context of your application. For example, many environments will include a full stack trace with all trace() calls, and icons or similar to highlight other calls.\n\n These methods should never fail in any environment, even if no console object is currently available, and should always fall back to an available log method even if the specific method called (e.g. warn) isn't available.\n\n Be aware that all this means that these method won't necessarily always produce exactly the output you expect in every environment; loglevel only guarantees that these methods will never explode on you, and that it will call the most relevant method it can find, with your argument. Firefox is a notable example here: due to a [current Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1172314) `log.trace(msg)` calls in Firefox will print only the stacktrace, and won't include any passed message arguments.\n\n* A `log.setLevel(level, [persist])` method.\n\n This disables all logging below the given level, so that after a log.setLevel(\"warn\") call log.warn(\"something\") or log.error(\"something\") will output messages, but log.info(\"something\") will not.\n\n This can take either a log level name or 'silent' (which disables everything) in one of a few forms:\n * As a log level from the internal levels list, e.g. log.levels.SILENT ← _for type safety_\n * As a string, like 'error' (case-insensitive) ← _for a reasonable practical balance_\n * As a numeric index from 0 (trace) to 5 (silent) ← _deliciously terse, and more easily programmable (...although, why?)_\n\n Where possible the log level will be persisted. LocalStorage will be used if available, falling back to cookies if not. If neither is available in the current environment (i.e. in Node), or if you pass `false` as the optional 'persist' second argument, persistence will be skipped.\n\n If log.setLevel() is called when a console object is not available (in IE 8 or 9 before the developer tools have been opened, for example) logging will remain silent until the console becomes available, and then begin logging at the requested level.\n\n* A `log.setDefaultLevel(level)` method.\n\n This sets the current log level only if one has not been persisted and can’t be loaded. This is useful when initializing scripts; if a developer or user has previously called `setLevel()`, this won’t alter their settings. For example, your application might set the log level to `error` in a production environment, but when debugging an issue, you might call `setLevel(\"trace\")` on the console to see all the logs. If that `error` setting was set using `setDefaultLevel()`, it will still say as `trace` on subsequent page loads and refreshes instead of resetting to `error`.\n\n The `level` argument takes is the same values that you might pass to `setLevel()`. Levels set using `setDefaultLevel()` never persist to subsequent page loads.\n\n* `log.enableAll()` and `log.disableAll()` methods.\n\n These enable or disable all log messages, and are equivalent to log.setLevel(\"trace\") and log.setLevel(\"silent\") respectively.\n\n* A `log.getLevel()` method.\n\n Returns the current logging level, as a number from 0 (trace) to 5 (silent)\n\n It's very unlikely you'll need to use this for normal application logging; it's provided partly to help plugin development, and partly to let you optimize logging code as below, where debug data is only generated if the level is set such that it'll actually be logged. This probably doesn't affect you, unless you've run profiling on your code and you have hard numbers telling you that your log data generation is a real performance problem.\n\n ```javascript\n if (log.getLevel() <= log.levels.DEBUG) {\n var logData = runExpensiveDataGeneration();\n log.debug(logData);\n }\n ```\n\n This notably isn't the right solution to avoid the cost of string concatenation in your logging. Firstly, it's very unlikely that string concatenation in your logging is really an important performance problem. Even if you do genuinely have hard metrics showing that it is though, the better solution that wrapping your log statements in this is to use multiple arguments, as below. The underlying console API will automatically concatenate these for you if logging is enabled, and if it isn't then all log methods are no-ops, and no concatenation will be done at all.\n\n ```javascript\n // Prints 'My concatenated log message'\n log.debug(\"My \", \"concatenated \", \"log message\");\n ```\n\n* A `log.getLogger(loggerName)` method.\n\n This gets you a new logger object that works exactly like the root `log` object, but can have its level and logging methods set independently. All loggers must have a name (which is a non-empty string). Calling `getLogger()` multiple times with the same name will return an identical logger object.\n\n In large applications, it can be incredibly useful to turn logging on and off for particular modules as you are working with them. Using the `getLogger()` method lets you create a separate logger for each part of your application with its own logging level.\n\n Likewise, for small, independent modules, using a named logger instead of the default root logger allows developers using your module to selectively turn on deep, trace-level logging when trying to debug problems, while logging only errors or silencing logging altogether under normal circumstances.\n\n Example usage *(using CommonJS modules, but you could do the same with any module system):*\n\n ```javascript\n // In module-one.js:\n var log = require(\"loglevel\").getLogger(\"module-one\");\n function doSomethingAmazing() {\n log.debug(\"Amazing message from module one.\");\n }\n\n // In module-two.js:\n var log = require(\"loglevel\").getLogger(\"module-two\");\n function doSomethingSpecial() {\n log.debug(\"Special message from module two.\");\n }\n\n // In your main application module:\n var log = require(\"loglevel\");\n var moduleOne = require(\"module-one\");\n var moduleTwo = require(\"module-two\");\n log.getLogger(\"module-two\").setLevel(\"TRACE\");\n\n moduleOne.doSomethingAmazing();\n moduleTwo.doSomethingSpecial();\n // logs \"Special message from module two.\"\n // (but nothing from module one.)\n ```\n\n Loggers returned by `getLogger()` support all the same properties and methods as the default root logger, excepting `noConflict()` and the `getLogger()` method itself.\n\n Like the root logger, other loggers can have their logging level saved. If a logger’s level has not been saved, it will inherit the root logger’s level when it is first created. If the root logger’s level changes later, the new level will not affect other loggers that have already been created.\n\n Likewise, loggers will inherit the root logger’s `methodFactory`. After creation, each logger can have its `methodFactory` independently set. See the *plugins* section below for more about `methodFactory`.\n\n* A `log.getLoggers()` method.\n\n This will return you the dictionary of all loggers created with `getLogger`, keyed off of their names.\n\n## Plugins\n\n### Existing plugins:\n\n[loglevel-plugin-prefix](https://github.com/kutuluk/loglevel-plugin-prefix) - plugin for loglevel message prefixing.\n\n[loglevel-plugin-remote](https://github.com/kutuluk/loglevel-plugin-remote) - plugin for sending loglevel messages to a remote log server.\n\nServerSend - https://github.com/artemyarulin/loglevel-serverSend - Forward your log messages to a remote server.\n\nStandard Streams - https://github.com/NatLibFi/loglevel-std-streams - Route logging through STDERR in Node for easier log management.\n\nMessage Prefix - https://github.com/NatLibFi/loglevel-message-prefix - Dynamic (timestamp/level) and static ('foo') message prefixing.\n\nMessage Buffer - https://github.com/NatLibFi/loglevel-message-buffer - Buffer messages, and flush them on-demand later.\n\nDEBUG - https://github.com/vectrlabs/loglevel-debug - Control logging from a DEBUG environmental variable (similar to the classic [Debug](https://github.com/visionmedia/debug) module)\n\n### Writing plugins:\n\nLoglevel provides a simple reliable minimal base for console logging that works everywhere. This means it doesn't include lots of fancy functionality that might be useful in some cases, such as log formatting and redirection (e.g. also sending log messages to a server over AJAX)\n\nIncluding that would increase the size and complexity of the library, but more importantly would remove stacktrace information. Currently log methods are either disabled, or enabled with directly bound versions of the console.log methods (where possible). This means your browser shows the log message as coming from your code at the call to `log.info(\"message!\")` not from within loglevel, since it really calls the bound console method directly, without indirection. The indirection required to dynamically format, further filter, or redirect log messages would stop this.\n\nThere's clearly enough enthusiasm for this even at that cost though that loglevel now includes a plugin API. To use it, redefine log.methodFactory(methodName, logLevel, loggerName) with a function of your own. This will be called for each enabled method each time the level is set (including initially), and should return a function to be used for the given log method, at the given level, for a logger with the given name. If you'd like to retain all the reliability and features of loglevel, it's recommended that this wraps the initially provided value of `log.methodFactory`\n\nFor example, a plugin to prefix all log messages with \"Newsflash: \" would look like:\n\n```javascript\nvar originalFactory = log.methodFactory;\nlog.methodFactory = function (methodName, logLevel, loggerName) {\n var rawMethod = originalFactory(methodName, logLevel, loggerName);\n\n return function (message) {\n rawMethod(\"Newsflash: \" + message);\n };\n};\nlog.setLevel(log.getLevel()); // Be sure to call setLevel method in order to apply plugin\n```\n\n*(The above supports only a single log.warn(\"\") argument for clarity, but it's easy to extend to a [fuller varadic version](http://jsbin.com/xehoye/edit?html,console))*\n\nIf you develop and release a plugin, please get in contact! I'd be happy to reference it here for future users. Some consistency is helpful; naming your plugin 'loglevel-PLUGINNAME' (e.g. loglevel-newsflash) is preferred, as is giving it the 'loglevel-plugin' keyword in your package.json\n\n## Developing & Contributing\nIn lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality.\n\nBuilds can be run with npm: run `npm run dist` to build a distributable version of the project (in /dist), or `npm test` to just run the tests and linting. During development you can run `npm run watch` and it will monitor source files, and rerun the tests and linting as appropriate when they're changed.\n\n_Also, please don't manually edit files in the \"dist\" subdirectory as they are generated via Grunt. You'll find source code in the \"lib\" subdirectory!_\n\n#### Release process\n\nTo do a release of loglevel:\n\n* Update the version number in package.json and bower.json\n* Run `npm run dist` to build a distributable version in dist/\n* Update the release history in this file (below)\n* Commit the built code, tagging it with the version number and a brief message about the release\n* Push to Github\n* Run `npm publish .` to publish to NPM\n\n## Release History\nv0.1.0 - First working release with apparent compatibility with everything tested\n\nv0.2.0 - Updated release with various tweaks and polish and real proper documentation attached\n\nv0.3.0 - Some bugfixes (#12, #14), cookie-based log level persistence, doc tweaks, support for Bower and JamJS\n\nv0.3.1 - Fixed incorrect text in release build banner, various other minor tweaks\n\nv0.4.0 - Use LocalStorage for level persistence if available, compatibility improvements for IE, improved error messages, multi-environment tests\n\nv0.5.0 - Fix for Modernizr+IE8 issues, improved setLevel error handling, support for auto-activation of desired logging when console eventually turns up in IE8\n\nv0.6.0 - Handle logging in Safari private browsing mode (#33), fix TRACE level persistence bug (#35), plus various minor tweaks\n\nv1.0.0 - Official stable release! Fixed a bug with localStorage in Android webviews, improved CommonJS detection, and added noConflict().\n\nv1.1.0 - Added support for including loglevel with preprocessing and .apply() (#50), and fixed QUnit dep version which made tests potentially unstable.\n\nv1.2.0 - New plugin API! Plus various bits of refactoring and tidy up, nicely simplifying things and trimming the size down.\n\nv1.3.0 - Make persistence optional in setLevel, plus lots of documentation updates and other small tweaks\n\nv1.3.1 - With the new optional persistence, stop unnecessarily persisting the initially set default level (warn)\n\nv1.4.0 - Add getLevel(), setDefaultLevel() and getLogger() functionality for more fine-grained log level control\n\nv1.4.1 - Reorder UMD (#92) to improve bundling tool compatibility\n\nv1.5.0 - Fix log.debug (#111) after V8 changes deprecating console.debug, check for `window` upfront (#104), and add `.log` alias for `.debug` (#64)\n\nv1.5.1 - Fix bug (#112) in level-persistence cookie fallback, which failed if it wasn't the first cookie present\n\nv1.6.0 - Add a name property to loggers and add log.getLoggers() (#114), and recommend unpkg as CDN instead of CDNJS.\n\nv1.6.1 - Various small documentation & test updates\n\n## License\nCopyright (c) 2013 Tim Perry\nLicensed under the MIT license.\n# npm-packlist\n\n[](https://travis-ci.com/npm/npm-packlist)\n\nGet a list of the files to add from a folder into an npm package\n\nThese can be handed to [tar](http://npm.im/tar) like so to make an npm\npackage tarball:\n\n```js\nconst packlist = require('npm-packlist')\nconst tar = require('tar')\nconst packageDir = '/path/to/package'\nconst packageTarball = '/path/to/package.tgz'\n\npacklist({ path: packageDir })\n .then(files => tar.create({\n prefix: 'package/',\n cwd: packageDir,\n file: packageTarball,\n gzip: true\n }, files))\n .then(_ => {\n // tarball has been created, continue with your day\n })\n```\n\nThis uses the following rules:\n\n1. If a `package.json` file is found, and it has a `files` list,\n then ignore everything that isn't in `files`. Always include the\n readme, license, notice, changes, changelog, and history files, if\n they exist, and the package.json file itself.\n2. If there's no `package.json` file (or it has no `files` list), and\n there is a `.npmignore` file, then ignore all the files in the\n `.npmignore` file.\n3. If there's no `package.json` with a `files` list, and there's no\n `.npmignore` file, but there is a `.gitignore` file, then ignore\n all the files in the `.gitignore` file.\n4. Everything in the root `node_modules` is ignored, unless it's a\n bundled dependency. If it IS a bundled dependency, and it's a\n symbolic link, then the target of the link is included, not the\n symlink itself.\n4. Unless they're explicitly included (by being in a `files` list, or\n a `!negated` rule in a relevant `.npmignore` or `.gitignore`),\n always ignore certain common cruft files:\n\n 1. .npmignore and .gitignore files (their effect is in the package\n already, there's no need to include them in the package)\n 2. editor junk like `.*.swp`, `._*` and `.*.orig` files\n 3. `.npmrc` files (these may contain private configs)\n 4. The `node_modules/.bin` folder\n 5. Waf and gyp cruft like `/build/config.gypi` and `.lock-wscript`\n 6. Darwin's `.DS_Store` files because wtf are those even\n 7. `npm-debug.log` files at the root of a project\n\n You can explicitly re-include any of these with a `files` list in\n `package.json` or a negated ignore file rule.\n\n## API\n\nSame API as [ignore-walk](http://npm.im/ignore-walk), just hard-coded\nfile list and rule sets.\n\nThe `Walker` and `WalkerSync` classes take a `bundled` argument, which\nis a list of package names to include from node_modules. When calling\nthe top-level `packlist()` and `packlist.sync()` functions, this\nmodule calls into `npm-bundled` directly.\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# Hackathon Leaderboard\n\nThis is the react + firebase app for the NEAR hackathon leaderboard.\n\n## Development\nFor dev\n`npm start` to launch the hot reloader and do some cool stuff. Go to `localhost:8080` to see it in action.\n\nFor prod build\n`npm run build`\n\n## NOTE\n For firebase to work, you need a config object that is stored in `src/fire.js`. This is notably missing from the public repo. You can use this with any firebase project by dropping the default config and init into `fire.js`.\n\nTODO:\n- Get firebase to work...\n- Add users and auth\n- Add Admin dash for adding points\n# HTTP Parser\n\nThis library parses HTTP protocol for requests and responses. It was created to replace `http_parser.c` since calling C++ function from JS is really slow in V8.\n\nThis was further modified by Jimbly to be useable in parsing responses, specifically tested with the \"request\" module, and addresses issues such as corrupt HTTP headers, which would otherwise cause Node's parser to throw a fatal error (HPE_INVALID_HEADER_TOKEN).\n\nJan Schär (jscissr) made some bigger changes and added tests. This fixed some bugs and added many missing features.\n\nThis is packaged as a standalone npm module. To use in node, monkeypatch HTTPParser.\n\n```js\n// Monkey patch before you require http for the first time.\nprocess.binding('http_parser').HTTPParser = require('http-parser-js').HTTPParser;\n\nvar http = require('http');\n// ...\n```\n\n## Testing\n\nSimply do `npm test`. The tests are copied from node and mscedex/io.js, with some modifcations.\n\n## Status\n\nThis should now be usable in any node application, it now supports (nearly) everything `http_parser.c` does while still being tolerant with corrupted headers.\n\n## License\n\nMIT. See LICENSE.md\n# readdirp [](http://travis-ci.org/thlorenz/readdirp)\n\n[](https://nodei.co/npm/readdirp/)\n\nRecursive version of [fs.readdir](http://nodejs.org/docs/latest/api/fs.html#fs_fs_readdir_path_callback). Exposes a **stream api**.\n\n```javascript\nvar readdirp = require('readdirp')\n , path = require('path')\n , es = require('event-stream');\n\n// print out all JavaScript files along with their size\n\nvar stream = readdirp({ root: path.join(__dirname), fileFilter: '*.js' });\nstream\n .on('warn', function (err) {\n console.error('non-fatal error', err);\n // optionally call stream.destroy() here in order to abort and cause 'close' to be emitted\n })\n .on('error', function (err) { console.error('fatal error', err); })\n .pipe(es.mapSync(function (entry) {\n return { path: entry.path, size: entry.stat.size };\n }))\n .pipe(es.stringify())\n .pipe(process.stdout);\n```\n\nMeant to be one of the recursive versions of [fs](http://nodejs.org/docs/latest/api/fs.html) functions, e.g., like [mkdirp](https://github.com/substack/node-mkdirp).\n\n**Table of Contents** *generated with [DocToc](http://doctoc.herokuapp.com/)*\n\n- [Installation](#installation)\n- [API](#api)\n\t- [entry stream](#entry-stream)\n\t- [options](#options)\n\t- [entry info](#entry-info)\n\t- [Filters](#filters)\n\t- [Callback API](#callback-api)\n\t\t- [allProcessed ](#allprocessed)\n\t\t- [fileProcessed](#fileprocessed)\n- [More Examples](#more-examples)\n\t- [stream api](#stream-api)\n\t- [stream api pipe](#stream-api-pipe)\n\t- [grep](#grep)\n\t- [using callback api](#using-callback-api)\n\t- [tests](#tests)\n\n# Installation\n\n npm install readdirp\n\n# API\n\n***var entryStream = readdirp (options)***\n\nReads given root recursively and returns a `stream` of [entry info](#entry-info)s.\n\n## entry stream\n\nBehaves as follows:\n\n- `emit('data')` passes an [entry info](#entry-info) whenever one is found\n- `emit('warn')` passes a non-fatal `Error` that prevents a file/directory from being processed (i.e., if it is\n inaccessible to the user)\n- `emit('error')` passes a fatal `Error` which also ends the stream (i.e., when illegal options where passed)\n- `emit('end')` called when all entries were found and no more will be emitted (i.e., we are done)\n- `emit('close')` called when the stream is destroyed via `stream.destroy()` (which could be useful if you want to\n manually abort even on a non fatal error) - at that point the stream is no longer `readable` and no more entries,\n warning or errors are emitted\n- to learn more about streams, consult the very detailed\n [nodejs streams documentation](http://nodejs.org/api/stream.html) or the\n [stream-handbook](https://github.com/substack/stream-handbook)\n\n## options\n\n- **root**: path in which to start reading and recursing into subdirectories\n\n- **fileFilter**: filter to include/exclude files found (see [Filters](#filters) for more)\n\n- **directoryFilter**: filter to include/exclude directories found and to recurse into (see [Filters](#filters) for more)\n\n- **depth**: depth at which to stop recursing even if more subdirectories are found\n\n- **entryType**: determines if data events on the stream should be emitted for `'files'`, `'directories'`, `'both'`, or `'all'`. Setting to `'all'` will also include entries for other types of file descriptors like character devices, unix sockets and named pipes. Defaults to `'files'`.\n\n- **lstat**: if `true`, readdirp uses `fs.lstat` instead of `fs.stat` in order to stat files and includes symlink entries in the stream along with files.\n\n## entry info\n\nHas the following properties:\n\n- **parentDir** : directory in which entry was found (relative to given root)\n- **fullParentDir** : full path to parent directory\n- **name** : name of the file/directory\n- **path** : path to the file/directory (relative to given root)\n- **fullPath** : full path to the file/directory found\n- **stat** : built in [stat object](http://nodejs.org/docs/v0.4.9/api/fs.html#fs.Stats)\n- **Example**: (assuming root was `/User/dev/readdirp`)\n\n parentDir : 'test/bed/root_dir1',\n fullParentDir : '/User/dev/readdirp/test/bed/root_dir1',\n name : 'root_dir1_subdir1',\n path : 'test/bed/root_dir1/root_dir1_subdir1',\n fullPath : '/User/dev/readdirp/test/bed/root_dir1/root_dir1_subdir1',\n stat : [ ... ]\n\n## Filters\n\nThere are three different ways to specify filters for files and directories respectively.\n\n- **function**: a function that takes an entry info as a parameter and returns true to include or false to exclude the entry\n\n- **glob string**: a string (e.g., `*.js`) which is matched using [minimatch](https://github.com/isaacs/minimatch), so go there for more\n information.\n\n Globstars (`**`) are not supported since specifying a recursive pattern for an already recursive function doesn't make sense.\n\n Negated globs (as explained in the minimatch documentation) are allowed, e.g., `!*.txt` matches everything but text files.\n\n- **array of glob strings**: either need to be all inclusive or all exclusive (negated) patterns otherwise an error is thrown.\n\n `[ '*.json', '*.js' ]` includes all JavaScript and Json files.\n\n `[ '!.git', '!node_modules' ]` includes all directories except the '.git' and 'node_modules'.\n\nDirectories that do not pass a filter will not be recursed into.\n\n## Callback API\n\nAlthough the stream api is recommended, readdirp also exposes a callback based api.\n\n***readdirp (options, callback1 [, callback2])***\n\nIf callback2 is given, callback1 functions as the **fileProcessed** callback, and callback2 as the **allProcessed** callback.\n\nIf only callback1 is given, it functions as the **allProcessed** callback.\n\n### allProcessed\n\n- function with err and res parameters, e.g., `function (err, res) { ... }`\n- **err**: array of errors that occurred during the operation, **res may still be present, even if errors occurred**\n- **res**: collection of file/directory [entry infos](#entry-info)\n\n### fileProcessed\n\n- function with [entry info](#entry-info) parameter e.g., `function (entryInfo) { ... }`\n\n# More Examples\n\n`on('error', ..)`, `on('warn', ..)` and `on('end', ..)` handling omitted for brevity\n\n```javascript\nvar readdirp = require('readdirp');\n\n// Glob file filter\nreaddirp({ root: './test/bed', fileFilter: '*.js' })\n .on('data', function (entry) {\n // do something with each JavaScript file entry\n });\n\n// Combined glob file filters\nreaddirp({ root: './test/bed', fileFilter: [ '*.js', '*.json' ] })\n .on('data', function (entry) {\n // do something with each JavaScript and Json file entry\n });\n\n// Combined negated directory filters\nreaddirp({ root: './test/bed', directoryFilter: [ '!.git', '!*modules' ] })\n .on('data', function (entry) {\n // do something with each file entry found outside '.git' or any modules directory\n });\n\n// Function directory filter\nreaddirp({ root: './test/bed', directoryFilter: function (di) { return di.name.length === 9; } })\n .on('data', function (entry) {\n // do something with each file entry found inside directories whose name has length 9\n });\n\n// Limiting depth\nreaddirp({ root: './test/bed', depth: 1 })\n .on('data', function (entry) {\n // do something with each file entry found up to 1 subdirectory deep\n });\n\n// callback api\nreaddirp({ root: '.' }, function(fileInfo) {\n // do something with file entry here\n }, function (err, res) {\n // all done, move on or do final step for all file entries here\n});\n```\n\nTry more examples by following [instructions](https://github.com/paulmillr/readdirp/blob/master/examples/Readme.md)\non how to get going.\n\n## tests\n\nThe [readdirp tests](https://github.com/paulmillr/readdirp/blob/master/test/readdirp.js) also will give you a good idea on\nhow things work.\n# fast-json-stable-stringify\n\nDeterministic `JSON.stringify()` - a faster version of [@substack](https://github.com/substack)'s json-stable-strigify without [jsonify](https://github.com/substack/jsonify).\n\nYou can also pass in a custom comparison function.\n\n[](https://travis-ci.org/epoberezkin/fast-json-stable-stringify)\n[](https://coveralls.io/github/epoberezkin/fast-json-stable-stringify?branch=master)\n\n# example\n\n``` js\nvar stringify = require('fast-json-stable-stringify');\nvar obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };\nconsole.log(stringify(obj));\n```\n\noutput:\n\n```\n{\"a\":3,\"b\":[{\"x\":4,\"y\":5,\"z\":6},7],\"c\":8}\n```\n\n# methods\n\n``` js\nvar stringify = require('fast-json-stable-stringify')\n```\n\n## var str = stringify(obj, opts)\n\nReturn a deterministic stringified string `str` from the object `obj`.\n\n## options\n\n### cmp\n\nIf `opts` is given, you can supply an `opts.cmp` to have a custom comparison\nfunction for object keys. Your function `opts.cmp` is called with these\nparameters:\n\n``` js\nopts.cmp({ key: akey, value: avalue }, { key: bkey, value: bvalue })\n```\n\nFor example, to sort on the object key names in reverse order you could write:\n\n``` js\nvar stringify = require('fast-json-stable-stringify');\n\nvar obj = { c: 8, b: [{z:6,y:5,x:4},7], a: 3 };\nvar s = stringify(obj, function (a, b) {\n return a.key < b.key ? 1 : -1;\n});\nconsole.log(s);\n```\n\nwhich results in the output string:\n\n```\n{\"c\":8,\"b\":[{\"z\":6,\"y\":5,\"x\":4},7],\"a\":3}\n```\n\nOr if you wanted to sort on the object values in reverse order, you could write:\n\n```\nvar stringify = require('fast-json-stable-stringify');\n\nvar obj = { d: 6, c: 5, b: [{z:3,y:2,x:1},9], a: 10 };\nvar s = stringify(obj, function (a, b) {\n return a.value < b.value ? 1 : -1;\n});\nconsole.log(s);\n```\n\nwhich outputs:\n\n```\n{\"d\":6,\"c\":5,\"b\":[{\"z\":3,\"y\":2,\"x\":1},9],\"a\":10}\n```\n\n### cycles\n\nPass `true` in `opts.cycles` to stringify circular property as `__cycle__` - the result will not be a valid JSON string in this case.\n\nTypeError will be thrown in case of circular object without this option.\n\n# install\n\nWith [npm](https://npmjs.org) do:\n\n```\nnpm install fast-json-stable-stringify\n```\n\n# benchmark\n\nTo run benchmark (requires Node.js 6+):\n```\nnode benchmark\n```\n\nResults:\n```\nfast-json-stable-stringify x 17,189 ops/sec ±1.43% (83 runs sampled)\njson-stable-stringify x 13,634 ops/sec ±1.39% (85 runs sampled)\nfast-stable-stringify x 20,212 ops/sec ±1.20% (84 runs sampled)\nfaster-stable-stringify x 15,549 ops/sec ±1.12% (84 runs sampled)\nThe fastest is fast-stable-stringify\n```\n\n# license\n\n[MIT](https://github.com/epoberezkin/fast-json-stable-stringify/blob/master/LICENSE)\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n</div>\n\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![cover][cover]][cover-url]\n[![chat][chat]][chat-url]\n[![size][size]][size-url]\n\n# terser-webpack-plugin\n\nThis plugin uses [terser](https://github.com/terser-js/terser) to minify your JavaScript.\n\n## Requirements\n\nThis module requires a minimum of Node v6.9.0 and Webpack v4.0.0.\n\n## Getting Started\n\nTo begin, you'll need to install `terser-webpack-plugin`:\n\n```console\n$ npm install terser-webpack-plugin --save-dev\n```\n\nThen add the plugin to your `webpack` config. For example:\n\n**webpack.config.js**\n\n```js\nconst TerserPlugin = require('terser-webpack-plugin');\n\nmodule.exports = {\n optimization: {\n minimizer: [new TerserPlugin()],\n },\n};\n```\n\nAnd run `webpack` via your preferred method.\n\n## Options\n\n### `test`\n\nType: `String|RegExp|Array<String|RegExp>`\nDefault: `/\\.m?js(\\?.*)?$/i`\n\nTest to match files against.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n test: /\\.js(\\?.*)?$/i,\n }),\n ],\n },\n};\n```\n\n### `include`\n\nType: `String|RegExp|Array<String|RegExp>`\nDefault: `undefined`\n\nFiles to include.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n include: /\\/includes/,\n }),\n ],\n },\n};\n```\n\n### `exclude`\n\nType: `String|RegExp|Array<String|RegExp>`\nDefault: `undefined`\n\nFiles to exclude.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n exclude: /\\/excludes/,\n }),\n ],\n },\n};\n```\n\n### `chunkFilter`\n\nType: `Function<(chunk) -> boolean>`\nDefault: `() => true`\n\nAllowing to filter which chunks should be uglified (by default all chunks are uglified).\nReturn `true` to uglify the chunk, `false` otherwise.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n chunkFilter: (chunk) => {\n // Exclude uglification for the `vendor` chunk\n if (chunk.name === 'vendor') {\n return false;\n }\n\n return true;\n },\n }),\n ],\n },\n};\n```\n\n### `cache`\n\nType: `Boolean|String`\nDefault: `false`\n\nEnable file caching.\nDefault path to cache directory: `node_modules/.cache/terser-webpack-plugin`.\n\n> ℹ️ If you use your own `minify` function please read the `minify` section for cache invalidation correctly.\n\n#### `Boolean`\n\nEnable/disable file caching.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n cache: true,\n }),\n ],\n },\n};\n```\n\n#### `String`\n\nEnable file caching and set path to cache directory.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n cache: 'path/to/cache',\n }),\n ],\n },\n};\n```\n\n### `cacheKeys`\n\nType: `Function<(defaultCacheKeys, file) -> Object>`\nDefault: `defaultCacheKeys => defaultCacheKeys`\n\nAllows you to override default cache keys.\n\nDefault cache keys:\n\n```js\n({\n terser: require('terser/package.json').version, // terser version\n 'terser-webpack-plugin': require('../package.json').version, // plugin version\n 'terser-webpack-plugin-options': this.options, // plugin options\n path: compiler.outputPath ? `${compiler.outputPath}/${file}` : file, // asset path\n hash: crypto\n .createHash('md4')\n .update(input)\n .digest('hex'), // source file hash\n});\n```\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n cache: true,\n cacheKeys: (defaultCacheKeys, file) => {\n defaultCacheKeys.myCacheKey = 'myCacheKeyValue';\n\n return defaultCacheKeys;\n },\n }),\n ],\n },\n};\n```\n\n### `parallel`\n\nType: `Boolean|Number`\nDefault: `false`\n\nUse multi-process parallel running to improve the build speed.\nDefault number of concurrent runs: `os.cpus().length - 1`.\n\n> ℹ️ Parallelization can speedup your build significantly and is therefore **highly recommended**.\n\n#### `Boolean`\n\nEnable/disable multi-process parallel running.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n parallel: true,\n }),\n ],\n },\n};\n```\n\n#### `Number`\n\nEnable multi-process parallel running and set number of concurrent runs.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n parallel: 4,\n }),\n ],\n },\n};\n```\n\n### `sourceMap`\n\nType: `Boolean`\nDefault: `false`\n\nUse source maps to map error message locations to modules (this slows down the compilation).\nIf you use your own `minify` function please read the `minify` section for handling source maps correctly.\n\n> ⚠️ **`cheap-source-map` options don't work with this plugin**.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n sourceMap: true,\n }),\n ],\n },\n};\n```\n\n### `minify`\n\nType: `Function`\nDefault: `undefined`\n\nAllows you to override default minify function.\nBy default plugin uses [terser](https://github.com/terser-js/terser) package.\nUseful for using and testing unpublished versions or forks.\n\n> ⚠️ **Always use `require` inside `minify` function when `parallel` option enabled**.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n minify: (file, sourceMap) => {\n const extractedComments = [];\n\n // Custom logic for extract comments\n\n const { error, map, code, warnings } = require('uglify-module') // Or require('./path/to/uglify-module')\n .minify(file, {\n /* Your options for minification */\n });\n\n return { error, map, code, warnings, extractedComments };\n },\n }),\n ],\n },\n};\n```\n\n### `terserOptions`\n\nType: `Object`\nDefault: [default](https://github.com/terser-js/terser#minify-options)\n\nTerser minify [options](https://github.com/terser-js/terser#minify-options).\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n terserOptions: {\n ecma: undefined,\n warnings: false,\n parse: {},\n compress: {},\n mangle: true, // Note `mangle.properties` is `false` by default.\n module: false,\n output: null,\n toplevel: false,\n nameCache: null,\n ie8: false,\n keep_classnames: undefined,\n keep_fnames: false,\n safari10: false,\n },\n }),\n ],\n },\n};\n```\n\n### `extractComments`\n\nType: `Boolean|String|RegExp|Function<(node, comment) -> Boolean|Object>|Object`\nDefault: `false`\n\nWhether comments shall be extracted to a separate file, (see [details](https://github.com/webpack/webpack/commit/71933e979e51c533b432658d5e37917f9e71595a)).\nBy default extract only comments using `/^\\**!|@preserve|@license|@cc_on/i` regexp condition and remove remaining comments.\nIf the original file is named `foo.js`, then the comments will be stored to `foo.js.LICENSE`.\nThe `terserOptions.output.comments` option specifies whether the comment will be preserved, i.e. it is possible to preserve some comments (e.g. annotations) while extracting others or even preserving comments that have been extracted.\n\n#### `Boolean`\n\nEnable/disable extracting comments.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: true,\n }),\n ],\n },\n};\n```\n\n#### `String`\n\nExtract `all` or `some` (use `/^\\**!|@preserve|@license|@cc_on/i` RegExp) comments.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: 'all',\n }),\n ],\n },\n};\n```\n\n#### `RegExp`\n\nAll comments that match the given expression will be extracted to the separate file.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: /@extract/i,\n }),\n ],\n },\n};\n```\n\n#### `Function<(node, comment) -> Boolean>`\n\nAll comments that match the given expression will be extracted to the separate file.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: (astNode, comment) => {\n if (/@extract/i.test(comment.value)) {\n return true;\n }\n\n return false;\n },\n }),\n ],\n },\n};\n```\n\n#### `Object`\n\nAllow to customize condition for extract comments, specify extracted file name and banner.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: {\n condition: /^\\**!|@preserve|@license|@cc_on/i,\n filename: (file) => {\n return `${file}.LICENSE`;\n },\n banner: (licenseFile) => {\n return `License information can be found in ${licenseFile}`;\n },\n },\n }),\n ],\n },\n};\n```\n\n##### `condition`\n\nType: `Boolean|String|RegExp|Function<(node, comment) -> Boolean|Object>`\n\nCondition what comments you need extract.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: {\n condition: 'some',\n filename: (file) => {\n return `${file}.LICENSE`;\n },\n banner: (licenseFile) => {\n return `License information can be found in ${licenseFile}`;\n },\n },\n }),\n ],\n },\n};\n```\n\n##### `filename`\n\nType: `String|Function<(string) -> String>`\nDefault: `${file}.LICENSE`\n\nThe file where the extracted comments will be stored.\nDefault is to append the suffix `.LICENSE` to the original filename.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: {\n condition: /^\\**!|@preserve|@license|@cc_on/i,\n filename: 'extracted-comments.js',\n banner: (licenseFile) => {\n return `License information can be found in ${licenseFile}`;\n },\n },\n }),\n ],\n },\n};\n```\n\n##### `banner`\n\nType: `Boolean|String|Function<(string) -> String>`\nDefault: `/*! For license information please see ${commentsFile} */`\n\nThe banner text that points to the extracted file and will be added on top of the original file.\nCan be `false` (no banner), a `String`, or a `Function<(string) -> String>` that will be called with the filename where extracted comments have been stored.\nWill be wrapped into comment.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n extractComments: {\n condition: true,\n filename: (file) => {\n return `${file}.LICENSE`;\n },\n banner: (commentsFile) => {\n return `My custom banner about license information ${commentsFile}`;\n },\n },\n }),\n ],\n },\n};\n```\n\n### `warningsFilter`\n\nType: `Function<(warning, source) -> Boolean>`\nDefault: `() => true`\n\nAllow to filter [terser](https://github.com/terser-js/terser) warnings.\nReturn `true` to keep the warning, `false` otherwise.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n warningsFilter: (warning, source) => {\n if (/Dropping unreachable code/i.test(warning)) {\n return true;\n }\n\n if (/filename\\.js/i.test(source)) {\n return true;\n }\n\n return false;\n },\n }),\n ],\n },\n};\n```\n\n## Examples\n\n### Cache And Parallel\n\nEnable cache and multi-process parallel running.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n cache: true,\n parallel: true,\n }),\n ],\n },\n};\n```\n\n### Preserve Comments\n\nExtract all legal comments (i.e. `/^\\**!|@preserve|@license|@cc_on/i`) and preserve `/@license/i` comments.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n terserOptions: {\n output: {\n comments: /@license/i,\n },\n },\n extractComments: true,\n }),\n ],\n },\n};\n```\n\n### Remove Comments\n\nIf you avoid building with comments, set **terserOptions.output.comments** to **false** as in this config:\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n terserOptions: {\n output: {\n comments: false,\n },\n },\n }),\n ],\n },\n};\n```\n\n### Custom Minify Function\n\nOverride default minify function - use `uglify-js` for minification.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n optimization: {\n minimizer: [\n new TerserPlugin({\n // Uncomment lines below for cache invalidation correctly\n // cache: true,\n // cacheKeys: (defaultCacheKeys) => {\n // delete defaultCacheKeys.terser;\n //\n // return Object.assign(\n // {},\n // defaultCacheKeys,\n // { 'uglify-js': require('uglify-js/package.json').version },\n // );\n // },\n minify: (file, sourceMap) => {\n // https://github.com/mishoo/UglifyJS2#minify-options\n const uglifyJsOptions = {\n /* your `uglify-js` package options */\n };\n\n if (sourceMap) {\n uglifyJsOptions.sourceMap = {\n content: sourceMap,\n };\n }\n\n return require('uglify-js').minify(file, uglifyJsOptions);\n },\n }),\n ],\n },\n};\n```\n\n## Contributing\n\nPlease take a moment to read our contributing guidelines if you haven't yet done so.\n\n[CONTRIBUTING](./.github/CONTRIBUTING.md)\n\n## License\n\n[MIT](./LICENSE)\n\n[npm]: https://img.shields.io/npm/v/terser-webpack-plugin.svg\n[npm-url]: https://npmjs.com/package/terser-webpack-plugin\n[node]: https://img.shields.io/node/v/terser-webpack-plugin.svg\n[node-url]: https://nodejs.org\n[deps]: https://david-dm.org/webpack-contrib/terser-webpack-plugin.svg\n[deps-url]: https://david-dm.org/webpack-contrib/terser-webpack-plugin\n[tests]: https://img.shields.io/circleci/project/github/webpack-contrib/terser-webpack-plugin.svg\n[tests-url]: https://circleci.com/gh/webpack-contrib/terser-webpack-plugin\n[cover]: https://codecov.io/gh/webpack-contrib/terser-webpack-plugin/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack-contrib/terser-webpack-plugin\n[chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg\n[chat-url]: https://gitter.im/webpack/webpack\n[size]: https://packagephobia.now.sh/badge?p=terser-webpack-plugin\n[size-url]: https://packagephobia.now.sh/result?p=terser-webpack-plugin\n# websocket-driver [](https://travis-ci.org/faye/websocket-driver-node)\n\nThis module provides a complete implementation of the WebSocket protocols that\ncan be hooked up to any I/O stream. It aims to simplify things by decoupling the\nprotocol details from the I/O layer, such that users only need to implement code\nto stream data in and out of it without needing to know anything about how the\nprotocol actually works. Think of it as a complete WebSocket system with\npluggable I/O.\n\nDue to this design, you get a lot of things for free. In particular, if you hook\nthis module up to some I/O object, it will do all of this for you:\n\n* Select the correct server-side driver to talk to the client\n* Generate and send both server- and client-side handshakes\n* Recognize when the handshake phase completes and the WS protocol begins\n* Negotiate subprotocol selection based on `Sec-WebSocket-Protocol`\n* Negotiate and use extensions via the\n [websocket-extensions](https://github.com/faye/websocket-extensions-node)\n module\n* Buffer sent messages until the handshake process is finished\n* Deal with proxies that defer delivery of the draft-76 handshake body\n* Notify you when the socket is open and closed and when messages arrive\n* Recombine fragmented messages\n* Dispatch text, binary, ping, pong and close frames\n* Manage the socket-closing handshake process\n* Automatically reply to ping frames with a matching pong\n* Apply masking to messages sent by the client\n\nThis library was originally extracted from the [Faye](http://faye.jcoglan.com)\nproject but now aims to provide simple WebSocket support for any Node-based\nproject.\n\n## Installation\n\n```\n$ npm install websocket-driver\n```\n\n## Usage\n\nThis module provides protocol drivers that have the same interface on the server\nand on the client. A WebSocket driver is an object with two duplex streams\nattached; one for incoming/outgoing messages and one for managing the wire\nprotocol over an I/O stream. The full API is described below.\n\n### Server-side with HTTP\n\nA Node webserver emits a special event for 'upgrade' requests, and this is where\nyou should handle WebSockets. You first check whether the request is a\nWebSocket, and if so you can create a driver and attach the request's I/O stream\nto it.\n\n```js\nvar http = require('http'),\n websocket = require('websocket-driver');\n\nvar server = http.createServer();\n\nserver.on('upgrade', function(request, socket, body) {\n if (!websocket.isWebSocket(request)) return;\n\n var driver = websocket.http(request);\n\n driver.io.write(body);\n socket.pipe(driver.io).pipe(socket);\n\n driver.messages.on('data', function(message) {\n console.log('Got a message', message);\n });\n\n driver.start();\n});\n```\n\nNote the line `driver.io.write(body)` - you must pass the `body` buffer to the\nsocket driver in order to make certain versions of the protocol work.\n\n### Server-side with TCP\n\nYou can also handle WebSocket connections in a bare TCP server, if you're not\nusing an HTTP server and don't want to implement HTTP parsing yourself.\n\nThe driver will emit a `connect` event when a request is received, and at this\npoint you can detect whether it's a WebSocket and handle it as such. Here's an\nexample using the Node `net` module:\n\n```js\nvar net = require('net'),\n websocket = require('websocket-driver');\n\nvar server = net.createServer(function(connection) {\n var driver = websocket.server();\n\n driver.on('connect', function() {\n if (websocket.isWebSocket(driver)) {\n driver.start();\n } else {\n // handle other HTTP requests\n }\n });\n\n driver.on('close', function() { connection.end() });\n connection.on('error', function() {});\n\n connection.pipe(driver.io).pipe(connection);\n\n driver.messages.pipe(driver.messages);\n});\n\nserver.listen(4180);\n```\n\nIn the `connect` event, the driver gains several properties to describe the\nrequest, similar to a Node request object, such as `method`, `url` and\n`headers`. However you should remember it's not a real request object; you\ncannot write data to it, it only tells you what request data we parsed from the\ninput.\n\nIf the request has a body, it will be in the `driver.body` buffer, but only as\nmuch of the body as has been piped into the driver when the `connect` event\nfires.\n\n### Client-side\n\nSimilarly, to implement a WebSocket client you just need to make a driver by\npassing in a URL. After this you use the driver API as described below to\nprocess incoming data and send outgoing data.\n\n```js\nvar net = require('net'),\n websocket = require('websocket-driver');\n\nvar driver = websocket.client('ws://www.example.com/socket'),\n tcp = net.connect(80, 'www.example.com');\n\ntcp.pipe(driver.io).pipe(tcp);\n\ntcp.on('connect', function() {\n driver.start();\n});\n\ndriver.messages.on('data', function(message) {\n console.log('Got a message', message);\n});\n```\n\nClient drivers have two additional properties for reading the HTTP data that was\nsent back by the server:\n\n* `driver.statusCode` - the integer value of the HTTP status code\n* `driver.headers` - an object containing the response headers\n\n### HTTP Proxies\n\nThe client driver supports connections via HTTP proxies using the `CONNECT`\nmethod. Instead of sending the WebSocket handshake immediately, it will send a\n`CONNECT` request, wait for a `200` response, and then proceed as normal.\n\nTo use this feature, call `driver.proxy(url)` where `url` is the origin of the\nproxy, including a username and password if required. This produces a duplex\nstream that you should pipe in and out of your TCP connection to the proxy\nserver. When the proxy emits `connect`, you can then pipe `driver.io` to your\nTCP stream and call `driver.start()`.\n\n```js\nvar net = require('net'),\n websocket = require('websocket-driver');\n\nvar driver = websocket.client('ws://www.example.com/socket'),\n proxy = driver.proxy('http://username:password@proxy.example.com'),\n tcp = net.connect(80, 'proxy.example.com');\n\ntcp.pipe(proxy).pipe(tcp, {end: false});\n\ntcp.on('connect', function() {\n proxy.start();\n});\n\nproxy.on('connect', function() {\n driver.io.pipe(tcp).pipe(driver.io);\n driver.start();\n});\n\ndriver.messages.on('data', function(message) {\n console.log('Got a message', message);\n});\n```\n\nThe proxy's `connect` event is also where you should perform a TLS handshake on\nyour TCP stream, if you are connecting to a `wss:` endpoint.\n\nIn the event that proxy connection fails, `proxy` will emit an `error`. You can\ninspect the proxy's response via `proxy.statusCode` and `proxy.headers`.\n\n```js\nproxy.on('error', function(error) {\n console.error(error.message);\n console.log(proxy.statusCode);\n console.log(proxy.headers);\n});\n```\n\nBefore calling `proxy.start()` you can set custom headers using\n`proxy.setHeader()`:\n\n```js\nproxy.setHeader('User-Agent', 'node');\nproxy.start();\n```\n\n### Driver API\n\nDrivers are created using one of the following methods:\n\n```js\ndriver = websocket.http(request, options)\ndriver = websocket.server(options)\ndriver = websocket.client(url, options)\n```\n\nThe `http` method returns a driver chosen using the headers from a Node HTTP\nrequest object. The `server` method returns a driver that will parse an HTTP\nrequest and then decide which driver to use for it using the `http` method. The\n`client` method always returns a driver for the RFC version of the protocol with\nmasking enabled on outgoing frames.\n\nThe `options` argument is optional, and is an object. It may contain the\nfollowing fields:\n\n* `maxLength` - the maximum allowed size of incoming message frames, in bytes.\n The default value is `2^26 - 1`, or 1 byte short of 64 MiB.\n* `protocols` - an array of strings representing acceptable subprotocols for use\n over the socket. The driver will negotiate one of these to use via the\n `Sec-WebSocket-Protocol` header if supported by the other peer.\n\nA driver has two duplex streams attached to it:\n\n* <b>`driver.io`</b> - this stream should be attached to an I/O socket like a\n TCP stream. Pipe incoming TCP chunks to this stream for them to be parsed, and\n pipe this stream back into TCP to send outgoing frames.\n* <b>`driver.messages`</b> - this stream emits messages received over the\n WebSocket. Writing to it sends messages to the other peer by emitting frames\n via the `driver.io` stream.\n\nAll drivers respond to the following API methods, but some of them are no-ops\ndepending on whether the client supports the behaviour.\n\nNote that most of these methods are commands: if they produce data that should\nbe sent over the socket, they will give this to you by emitting `data` events on\nthe `driver.io` stream.\n\n#### `driver.on('open', function(event) {})`\n\nAdds a callback to execute when the socket becomes open.\n\n#### `driver.on('message', function(event) {})`\n\nAdds a callback to execute when a message is received. `event` will have a\n`data` attribute containing either a string in the case of a text message or a\n`Buffer` in the case of a binary message.\n\nYou can also listen for messages using the `driver.messages.on('data')` event,\nwhich emits strings for text messages and buffers for binary messages.\n\n#### `driver.on('error', function(event) {})`\n\nAdds a callback to execute when a protocol error occurs due to the other peer\nsending an invalid byte sequence. `event` will have a `message` attribute\ndescribing the error.\n\n#### `driver.on('close', function(event) {})`\n\nAdds a callback to execute when the socket becomes closed. The `event` object\nhas `code` and `reason` attributes.\n\n#### `driver.on('ping', function(event) {})`\n\nAdds a callback block to execute when a ping is received. You do not need to\nhandle this by sending a pong frame yourself; the driver handles this for you.\n\n#### `driver.on('pong', function(event) {})`\n\nAdds a callback block to execute when a pong is received. If this was in\nresponse to a ping you sent, you can also handle this event via the\n`driver.ping(message, function() { ... })` callback.\n\n#### `driver.addExtension(extension)`\n\nRegisters a protocol extension whose operation will be negotiated via the\n`Sec-WebSocket-Extensions` header. `extension` is any extension compatible with\nthe [websocket-extensions](https://github.com/faye/websocket-extensions-node)\nframework.\n\n#### `driver.setHeader(name, value)`\n\nSets a custom header to be sent as part of the handshake response, either from\nthe server or from the client. Must be called before `start()`, since this is\nwhen the headers are serialized and sent.\n\n#### `driver.start()`\n\nInitiates the protocol by sending the handshake - either the response for a\nserver-side driver or the request for a client-side one. This should be the\nfirst method you invoke. Returns `true` if and only if a handshake was sent.\n\n#### `driver.parse(string)`\n\nTakes a string and parses it, potentially resulting in message events being\nemitted (see `on('message')` above) or in data being sent to `driver.io`. You\nshould send all data you receive via I/O to this method by piping a stream into\n`driver.io`.\n\n#### `driver.text(string)`\n\nSends a text message over the socket. If the socket handshake is not yet\ncomplete, the message will be queued until it is. Returns `true` if the message\nwas sent or queued, and `false` if the socket can no longer send messages.\n\nThis method is equivalent to `driver.messages.write(string)`.\n\n#### `driver.binary(buffer)`\n\nTakes a `Buffer` and sends it as a binary message. Will queue and return `true`\nor `false` the same way as the `text` method. It will also return `false` if the\ndriver does not support binary messages.\n\nThis method is equivalent to `driver.messages.write(buffer)`.\n\n#### `driver.ping(string = '', function() {})`\n\nSends a ping frame over the socket, queueing it if necessary. `string` and the\ncallback are both optional. If a callback is given, it will be invoked when the\nsocket receives a pong frame whose content matches `string`. Returns `false` if\nframes can no longer be sent, or if the driver does not support ping/pong.\n\n#### `driver.pong(string = '')`\n\nSends a pong frame over the socket, queueing it if necessary. `string` is\noptional. Returns `false` if frames can no longer be sent, or if the driver does\nnot support ping/pong.\n\nYou don't need to call this when a ping frame is received; pings are replied to\nautomatically by the driver. This method is for sending unsolicited pongs.\n\n#### `driver.close()`\n\nInitiates the closing handshake if the socket is still open. For drivers with no\nclosing handshake, this will result in the immediate execution of the\n`on('close')` driver. For drivers with a closing handshake, this sends a closing\nframe and `emit('close')` will execute when a response is received or a protocol\nerror occurs.\n\n#### `driver.version`\n\nReturns the WebSocket version in use as a string. Will either be `hixie-75`,\n`hixie-76` or `hybi-$version`.\n\n#### `driver.protocol`\n\nReturns a string containing the selected subprotocol, if any was agreed upon\nusing the `Sec-WebSocket-Protocol` mechanism. This value becomes available after\n`emit('open')` has fired.\n# readable-stream\n\n***Node.js core streams for userland*** [](https://travis-ci.com/nodejs/readable-stream)\n\n[](https://nodei.co/npm/readable-stream/)\n[](https://nodei.co/npm/readable-stream/)\n\n[](https://saucelabs.com/u/readabe-stream)\n\n```bash\nnpm install --save readable-stream\n```\n\nThis package is a mirror of the streams implementations in Node.js.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v10.15.3/docs/api/stream.html).\n\nIf you want to guarantee a stable streams base, regardless of what version of\nNode you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *\"stream\"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).\n\nAs of version 2.0.0 **readable-stream** uses semantic versioning.\n\n## Version 3.x.x\n\nv3.x.x of `readable-stream` supports Node 6, 8, and 10, as well as\nevergreen browsers, IE 11 and latest Safari. The breaking changes\nintroduced by v3 are composed by the combined breaking changes in [Node v9](https://nodejs.org/en/blog/release/v9.0.0/)\nand [Node v10](https://nodejs.org/en/blog/release/v10.0.0/), as follows:\n\n1. Error codes: https://github.com/nodejs/node/pull/13310,\n https://github.com/nodejs/node/pull/13291,\n https://github.com/nodejs/node/pull/16589,\n https://github.com/nodejs/node/pull/15042,\n https://github.com/nodejs/node/pull/15665,\n https://github.com/nodejs/readable-stream/pull/344\n2. 'readable' have precedence over flowing\n https://github.com/nodejs/node/pull/18994\n3. make virtual methods errors consistent\n https://github.com/nodejs/node/pull/18813\n4. updated streams error handling\n https://github.com/nodejs/node/pull/18438\n5. writable.end should return this.\n https://github.com/nodejs/node/pull/18780\n6. readable continues to read when push('')\n https://github.com/nodejs/node/pull/18211\n7. add custom inspect to BufferList\n https://github.com/nodejs/node/pull/17907\n8. always defer 'readable' with nextTick\n https://github.com/nodejs/node/pull/17979\n\n## Version 2.x.x\n\nv2.x.x of `readable-stream` supports all Node.js version from 0.8, as well as\nevergreen browsers and IE 10 & 11.\n\n### Big Thanks\n\nCross-browser Testing Platform and Open Source <3 Provided by [Sauce Labs][sauce]\n\n# Usage\n\nYou can swap your `require('stream')` with `require('readable-stream')`\nwithout any changes, if you are just using one of the main classes and\nfunctions.\n\n```js\nconst {\n Readable,\n Writable,\n Transform,\n Duplex,\n pipeline,\n finished\n} = require('readable-stream')\n````\n\nNote that `require('stream')` will return `Stream`, while\n`require('readable-stream')` will return `Readable`. We discourage using\nwhatever is exported directly, but rather use one of the properties as\nshown in the example above.\n\n# Streams Working Group\n\n`readable-stream` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\n<a name=\"members\"></a>\n## Team Members\n\n* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) <calvin.metcalf@gmail.com>\n - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242\n* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) <mathiasbuus@gmail.com>\n* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) <matteo.collina@gmail.com>\n - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E\n* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) <shestak.irina@gmail.com>\n* **Yoshua Wyuts** ([@yoshuawuyts](https://github.com/yoshuawuyts)) <yoshuawuyts@gmail.com>\n\n[sauce]: https://saucelabs.com\n# yallist\n\nYet Another Linked List\n\nThere are many doubly-linked list implementations like it, but this\none is mine.\n\nFor when an array would be too big, and a Map can't be iterated in\nreverse order.\n\n[](https://travis-ci.org/isaacs/yallist) [](https://coveralls.io/github/isaacs/yallist)\n\n## basic usage\n\n```javascript\nvar yallist = require('yallist')\nvar myList = yallist.create([1, 2, 3])\nmyList.push('foo')\nmyList.unshift('bar')\n// of course pop() and shift() are there, too\nconsole.log(myList.toArray()) // ['bar', 1, 2, 3, 'foo']\nmyList.forEach(function (k) {\n // walk the list head to tail\n})\nmyList.forEachReverse(function (k, index, list) {\n // walk the list tail to head\n})\nvar myDoubledList = myList.map(function (k) {\n return k + k\n})\n// now myDoubledList contains ['barbar', 2, 4, 6, 'foofoo']\n// mapReverse is also a thing\nvar myDoubledListReverse = myList.mapReverse(function (k) {\n return k + k\n}) // ['foofoo', 6, 4, 2, 'barbar']\n\nvar reduced = myList.reduce(function (set, entry) {\n set += entry\n return set\n}, 'start')\nconsole.log(reduced) // 'startfoo123bar'\n```\n\n## api\n\nThe whole API is considered \"public\".\n\nFunctions with the same name as an Array method work more or less the\nsame way.\n\nThere's reverse versions of most things because that's the point.\n\n### Yallist\n\nDefault export, the class that holds and manages a list.\n\nCall it with either a forEach-able (like an array) or a set of\narguments, to initialize the list.\n\nThe Array-ish methods all act like you'd expect. No magic length,\nthough, so if you change that it won't automatically prune or add\nempty spots.\n\n### Yallist.create(..)\n\nAlias for Yallist function. Some people like factories.\n\n#### yallist.head\n\nThe first node in the list\n\n#### yallist.tail\n\nThe last node in the list\n\n#### yallist.length\n\nThe number of nodes in the list. (Change this at your peril. It is\nnot magic like Array length.)\n\n#### yallist.toArray()\n\nConvert the list to an array.\n\n#### yallist.forEach(fn, [thisp])\n\nCall a function on each item in the list.\n\n#### yallist.forEachReverse(fn, [thisp])\n\nCall a function on each item in the list, in reverse order.\n\n#### yallist.get(n)\n\nGet the data at position `n` in the list. If you use this a lot,\nprobably better off just using an Array.\n\n#### yallist.getReverse(n)\n\nGet the data at position `n`, counting from the tail.\n\n#### yallist.map(fn, thisp)\n\nCreate a new Yallist with the result of calling the function on each\nitem.\n\n#### yallist.mapReverse(fn, thisp)\n\nSame as `map`, but in reverse.\n\n#### yallist.pop()\n\nGet the data from the list tail, and remove the tail from the list.\n\n#### yallist.push(item, ...)\n\nInsert one or more items to the tail of the list.\n\n#### yallist.reduce(fn, initialValue)\n\nLike Array.reduce.\n\n#### yallist.reduceReverse\n\nLike Array.reduce, but in reverse.\n\n#### yallist.reverse\n\nReverse the list in place.\n\n#### yallist.shift()\n\nGet the data from the list head, and remove the head from the list.\n\n#### yallist.slice([from], [to])\n\nJust like Array.slice, but returns a new Yallist.\n\n#### yallist.sliceReverse([from], [to])\n\nJust like yallist.slice, but the result is returned in reverse.\n\n#### yallist.toArray()\n\nCreate an array representation of the list.\n\n#### yallist.toArrayReverse()\n\nCreate a reversed array representation of the list.\n\n#### yallist.unshift(item, ...)\n\nInsert one or more items to the head of the list.\n\n#### yallist.unshiftNode(node)\n\nMove a Node object to the front of the list. (That is, pull it out of\nwherever it lives, and make it the new head.)\n\nIf the node belongs to a different list, then that list will remove it\nfirst.\n\n#### yallist.pushNode(node)\n\nMove a Node object to the end of the list. (That is, pull it out of\nwherever it lives, and make it the new tail.)\n\nIf the node belongs to a list already, then that list will remove it\nfirst.\n\n#### yallist.removeNode(node)\n\nRemove a node from the list, preserving referential integrity of head\nand tail and other nodes.\n\nWill throw an error if you try to have a list remove a node that\ndoesn't belong to it.\n\n### Yallist.Node\n\nThe class that holds the data and is actually the list.\n\nCall with `var n = new Node(value, previousNode, nextNode)`\n\nNote that if you do direct operations on Nodes themselves, it's very\neasy to get into weird states where the list is broken. Be careful :)\n\n#### node.next\n\nThe next node in the list.\n\n#### node.prev\n\nThe previous node in the list.\n\n#### node.value\n\nThe data the node contains.\n\n#### node.list\n\nThe list to which this node belongs. (Null if it does not belong to\nany list.)\n# Chokidar [](https://github.com/paulmillr/chokidar) [](https://github.com/paulmillr/chokidar) [](https://travis-ci.org/paulmillr/chokidar) [](https://ci.appveyor.com/project/paulmillr/chokidar/branch/master) [](https://coveralls.io/r/paulmillr/chokidar)\n\n> A neat wrapper around node.js fs.watch / fs.watchFile / FSEvents.\n\n[](https://www.npmjs.com/package/chokidar)\n\n## Why?\nNode.js `fs.watch`:\n\n* Doesn't report filenames on MacOS.\n* Doesn't report events at all when using editors like Sublime on MacOS.\n* Often reports events twice.\n* Emits most changes as `rename`.\n* Has [a lot of other issues](https://github.com/nodejs/node/search?q=fs.watch&type=Issues)\n* Does not provide an easy way to recursively watch file trees.\n\nNode.js `fs.watchFile`:\n\n* Almost as bad at event handling.\n* Also does not provide any recursive watching.\n* Results in high CPU utilization.\n\nChokidar resolves these problems.\n\nInitially made for **[Brunch](http://brunch.io)** (an ultra-swift web app build tool), it is now used in\n[gulp](https://github.com/gulpjs/gulp/),\n[karma](http://karma-runner.github.io),\n[PM2](https://github.com/Unitech/PM2),\n[browserify](http://browserify.org/),\n[webpack](http://webpack.github.io/),\n[BrowserSync](http://www.browsersync.io/),\n[Microsoft's Visual Studio Code](https://github.com/microsoft/vscode),\nand [many others](https://www.npmjs.org/browse/depended/chokidar/).\nIt has proven itself in production environments.\n\n## How?\nChokidar does still rely on the Node.js core `fs` module, but when using\n`fs.watch` and `fs.watchFile` for watching, it normalizes the events it\nreceives, often checking for truth by getting file stats and/or dir contents.\n\nOn MacOS, chokidar by default uses a native extension exposing the Darwin\n`FSEvents` API. This provides very efficient recursive watching compared with\nimplementations like `kqueue` available on most \\*nix platforms. Chokidar still\ndoes have to do some work to normalize the events received that way as well.\n\nOn other platforms, the `fs.watch`-based implementation is the default, which\navoids polling and keeps CPU usage down. Be advised that chokidar will initiate\nwatchers recursively for everything within scope of the paths that have been\nspecified, so be judicious about not wasting system resources by watching much\nmore than needed.\n\n## Getting started\nInstall with npm:\n\n```sh\nnpm install chokidar\n```\n\nThen `require` and use it in your code:\n\n```javascript\nvar chokidar = require('chokidar');\n\n// One-liner for current directory, ignores .dotfiles\nchokidar.watch('.', {ignored: /(^|[\\/\\\\])\\../}).on('all', (event, path) => {\n console.log(event, path);\n});\n```\n\n```javascript\n// Example of a more typical implementation structure:\n\n// Initialize watcher.\nvar watcher = chokidar.watch('file, dir, glob, or array', {\n ignored: /(^|[\\/\\\\])\\../,\n persistent: true\n});\n\n// Something to use when events are received.\nvar log = console.log.bind(console);\n// Add event listeners.\nwatcher\n .on('add', path => log(`File ${path} has been added`))\n .on('change', path => log(`File ${path} has been changed`))\n .on('unlink', path => log(`File ${path} has been removed`));\n\n// More possible events.\nwatcher\n .on('addDir', path => log(`Directory ${path} has been added`))\n .on('unlinkDir', path => log(`Directory ${path} has been removed`))\n .on('error', error => log(`Watcher error: ${error}`))\n .on('ready', () => log('Initial scan complete. Ready for changes'))\n .on('raw', (event, path, details) => {\n log('Raw event info:', event, path, details);\n });\n\n// 'add', 'addDir' and 'change' events also receive stat() results as second\n// argument when available: http://nodejs.org/api/fs.html#fs_class_fs_stats\nwatcher.on('change', (path, stats) => {\n if (stats) console.log(`File ${path} changed size to ${stats.size}`);\n});\n\n// Watch new files.\nwatcher.add('new-file');\nwatcher.add(['new-file-2', 'new-file-3', '**/other-file*']);\n\n// Get list of actual paths being watched on the filesystem\nvar watchedPaths = watcher.getWatched();\n\n// Un-watch some files.\nwatcher.unwatch('new-file*');\n\n// Stop watching.\nwatcher.close();\n\n// Full list of options. See below for descriptions. (do not use this example)\nchokidar.watch('file', {\n persistent: true,\n\n ignored: '*.txt',\n ignoreInitial: false,\n followSymlinks: true,\n cwd: '.',\n disableGlobbing: false,\n\n usePolling: true,\n interval: 100,\n binaryInterval: 300,\n alwaysStat: false,\n depth: 99,\n awaitWriteFinish: {\n stabilityThreshold: 2000,\n pollInterval: 100\n },\n\n ignorePermissionErrors: false,\n atomic: true // or a custom 'atomicity delay', in milliseconds (default 100)\n});\n\n```\n\n## API\n\n`chokidar.watch(paths, [options])`\n\n* `paths` (string or array of strings). Paths to files, dirs to be watched\nrecursively, or glob patterns.\n* `options` (object) Options object as defined below:\n\n#### Persistence\n\n* `persistent` (default: `true`). Indicates whether the process\nshould continue to run as long as files are being watched. If set to\n`false` when using `fsevents` to watch, no more events will be emitted\nafter `ready`, even if the process continues to run.\n\n#### Path filtering\n\n* `ignored` ([anymatch](https://github.com/es128/anymatch)-compatible definition)\nDefines files/paths to be ignored. The whole relative or absolute path is\ntested, not just filename. If a function with two arguments is provided, it\ngets called twice per path - once with a single argument (the path), second\ntime with two arguments (the path and the\n[`fs.Stats`](http://nodejs.org/api/fs.html#fs_class_fs_stats)\nobject of that path).\n* `ignoreInitial` (default: `false`). If set to `false` then `add`/`addDir` events are also emitted for matching paths while\ninstantiating the watching as chokidar discovers these file paths (before the `ready` event).\n* `followSymlinks` (default: `true`). When `false`, only the\nsymlinks themselves will be watched for changes instead of following\nthe link references and bubbling events through the link's path.\n* `cwd` (no default). The base directory from which watch `paths` are to be\nderived. Paths emitted with events will be relative to this.\n* `disableGlobbing` (default: `false`). If set to `true` then the strings passed to `.watch()` and `.add()` are treated as\nliteral path names, even if they look like globs.\n\n#### Performance\n\n* `usePolling` (default: `false`).\nWhether to use fs.watchFile (backed by polling), or fs.watch. If polling\nleads to high CPU utilization, consider setting this to `false`. It is\ntypically necessary to **set this to `true` to successfully watch files over\na network**, and it may be necessary to successfully watch files in other\nnon-standard situations. Setting to `true` explicitly on MacOS overrides the\n`useFsEvents` default. You may also set the CHOKIDAR_USEPOLLING env variable\nto true (1) or false (0) in order to override this option.\n* _Polling-specific settings_ (effective when `usePolling: true`)\n * `interval` (default: `100`). Interval of file system polling. You may also\n set the CHOKIDAR_INTERVAL env variable to override this option.\n * `binaryInterval` (default: `300`). Interval of file system\n polling for binary files.\n ([see list of binary extensions](https://github.com/sindresorhus/binary-extensions/blob/master/binary-extensions.json))\n* `useFsEvents` (default: `true` on MacOS). Whether to use the\n`fsevents` watching interface if available. When set to `true` explicitly\nand `fsevents` is available this supercedes the `usePolling` setting. When\nset to `false` on MacOS, `usePolling: true` becomes the default.\n* `alwaysStat` (default: `false`). If relying upon the\n[`fs.Stats`](http://nodejs.org/api/fs.html#fs_class_fs_stats)\nobject that may get passed with `add`, `addDir`, and `change` events, set\nthis to `true` to ensure it is provided even in cases where it wasn't\nalready available from the underlying watch events.\n* `depth` (default: `undefined`). If set, limits how many levels of\nsubdirectories will be traversed.\n* `awaitWriteFinish` (default: `false`).\nBy default, the `add` event will fire when a file first appears on disk, before\nthe entire file has been written. Furthermore, in some cases some `change`\nevents will be emitted while the file is being written. In some cases,\nespecially when watching for large files there will be a need to wait for the\nwrite operation to finish before responding to a file creation or modification.\nSetting `awaitWriteFinish` to `true` (or a truthy value) will poll file size,\nholding its `add` and `change` events until the size does not change for a\nconfigurable amount of time. The appropriate duration setting is heavily\ndependent on the OS and hardware. For accurate detection this parameter should\nbe relatively high, making file watching much less responsive.\nUse with caution.\n * *`options.awaitWriteFinish` can be set to an object in order to adjust\n timing params:*\n * `awaitWriteFinish.stabilityThreshold` (default: 2000). Amount of time in\n milliseconds for a file size to remain constant before emitting its event.\n * `awaitWriteFinish.pollInterval` (default: 100). File size polling interval.\n\n#### Errors\n* `ignorePermissionErrors` (default: `false`). Indicates whether to watch files\nthat don't have read permissions if possible. If watching fails due to `EPERM`\nor `EACCES` with this set to `true`, the errors will be suppressed silently.\n* `atomic` (default: `true` if `useFsEvents` and `usePolling` are `false`).\nAutomatically filters out artifacts that occur when using editors that use\n\"atomic writes\" instead of writing directly to the source file. If a file is\nre-added within 100 ms of being deleted, Chokidar emits a `change` event\nrather than `unlink` then `add`. If the default of 100 ms does not work well\nfor you, you can override it by setting `atomic` to a custom value, in\nmilliseconds.\n\n### Methods & Events\n\n`chokidar.watch()` produces an instance of `FSWatcher`. Methods of `FSWatcher`:\n\n* `.add(path / paths)`: Add files, directories, or glob patterns for tracking.\nTakes an array of strings or just one string.\n* `.on(event, callback)`: Listen for an FS event.\nAvailable events: `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `ready`,\n`raw`, `error`.\nAdditionally `all` is available which gets emitted with the underlying event\nname and path for every event other than `ready`, `raw`, and `error`.\n* `.unwatch(path / paths)`: Stop watching files, directories, or glob patterns.\nTakes an array of strings or just one string.\n* `.close()`: Removes all listeners from watched files.\n* `.getWatched()`: Returns an object representing all the paths on the file\nsystem being watched by this `FSWatcher` instance. The object's keys are all the\ndirectories (using absolute paths unless the `cwd` option was used), and the\nvalues are arrays of the names of the items contained in each directory.\n\n## CLI\n\nIf you need a CLI interface for your file watching, check out\n[chokidar-cli](https://github.com/kimmobrunfeldt/chokidar-cli), allowing you to\nexecute a command on each change, or get a stdio stream of change events.\n\n## Install Troubleshooting\n\n* `npm WARN optional dep failed, continuing fsevents@n.n.n`\n * This message is normal part of how `npm` handles optional dependencies and is\n not indicative of a problem. Even if accompanied by other related error messages,\n Chokidar should function properly.\n\n* `ERR! stack Error: Python executable \"python\" is v3.4.1, which is not supported by gyp.`\n * You should be able to resolve this by installing python 2.7 and running:\n `npm config set python python2.7`\n\n* `gyp ERR! stack Error: not found: make`\n * On Mac, install the XCode command-line tools\n\n## License\n\nThe MIT License (MIT)\n\nCopyright (c) 2012-2019 Paul Miller (https://paulmillr.com) & Elan Shanker\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the “Software”), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\nThis folder contains entry points for all stable `core-js` features with dependencies. It's the recommended way for usage only required features.\n# Punycode.js [](https://travis-ci.org/bestiejs/punycode.js) [](https://coveralls.io/r/bestiejs/punycode.js) [](https://gemnasium.com/bestiejs/punycode.js)\n\nA robust Punycode converter that fully complies to [RFC 3492](https://tools.ietf.org/html/rfc3492) and [RFC 5891](https://tools.ietf.org/html/rfc5891), and works on nearly all JavaScript platforms.\n\nThis JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm:\n\n* [The C example code from RFC 3492](https://tools.ietf.org/html/rfc3492#appendix-C)\n* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c)\n* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c)\n* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287)\n* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072))\n\nThis project is [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with [Node.js v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc) and [io.js v1.0.0+](https://github.com/iojs/io.js/blob/v1.x/lib/punycode.js).\n\n## Installation\n\nVia [npm](https://www.npmjs.com/) (only required for Node.js releases older than v0.6.2):\n\n```bash\nnpm install punycode\n```\n\nVia [Bower](http://bower.io/):\n\n```bash\nbower install punycode\n```\n\nVia [Component](https://github.com/component/component):\n\n```bash\ncomponent install bestiejs/punycode.js\n```\n\nIn a browser:\n\n```html\n<script src=\"punycode.js\"></script>\n```\n\nIn [Node.js](https://nodejs.org/), [io.js](https://iojs.org/), [Narwhal](http://narwhaljs.org/), and [RingoJS](http://ringojs.org/):\n\n```js\nvar punycode = require('punycode');\n```\n\nIn [Rhino](http://www.mozilla.org/rhino/):\n\n```js\nload('punycode.js');\n```\n\nUsing an AMD loader like [RequireJS](http://requirejs.org/):\n\n```js\nrequire(\n {\n 'paths': {\n 'punycode': 'path/to/punycode'\n }\n },\n ['punycode'],\n function(punycode) {\n console.log(punycode);\n }\n);\n```\n\n## API\n\n### `punycode.decode(string)`\n\nConverts a Punycode string of ASCII symbols to a string of Unicode symbols.\n\n```js\n// decode domain name parts\npunycode.decode('maana-pta'); // 'mañana'\npunycode.decode('--dqo34k'); // '☃-⌘'\n```\n\n### `punycode.encode(string)`\n\nConverts a string of Unicode symbols to a Punycode string of ASCII symbols.\n\n```js\n// encode domain name parts\npunycode.encode('mañana'); // 'maana-pta'\npunycode.encode('☃-⌘'); // '--dqo34k'\n```\n\n### `punycode.toUnicode(input)`\n\nConverts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode.\n\n```js\n// decode domain names\npunycode.toUnicode('xn--maana-pta.com');\n// → 'mañana.com'\npunycode.toUnicode('xn----dqo34k.com');\n// → '☃-⌘.com'\n\n// decode email addresses\npunycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq');\n// → 'джумла@джpумлатест.bрфa'\n```\n\n### `punycode.toASCII(input)`\n\nConverts a lowercased Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that’s already in ASCII.\n\n```js\n// encode domain names\npunycode.toASCII('mañana.com');\n// → 'xn--maana-pta.com'\npunycode.toASCII('☃-⌘.com');\n// → 'xn----dqo34k.com'\n\n// encode email addresses\npunycode.toASCII('джумла@джpумлатест.bрфa');\n// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'\n```\n\n### `punycode.ucs2`\n\n#### `punycode.ucs2.decode(string)`\n\nCreates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16.\n\n```js\npunycode.ucs2.decode('abc');\n// → [0x61, 0x62, 0x63]\n// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE:\npunycode.ucs2.decode('\\uD834\\uDF06');\n// → [0x1D306]\n```\n\n#### `punycode.ucs2.encode(codePoints)`\n\nCreates a string based on an array of numeric code point values.\n\n```js\npunycode.ucs2.encode([0x61, 0x62, 0x63]);\n// → 'abc'\npunycode.ucs2.encode([0x1D306]);\n// → '\\uD834\\uDF06'\n```\n\n### `punycode.version`\n\nA string representing the current Punycode.js version number.\n\n## Unit tests & code coverage\n\nAfter cloning this repository, run `npm install --dev` to install the dependencies needed for Punycode.js development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.\n\nOnce that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, PhantomJS, and web browsers as well, use `grunt test`.\n\nTo generate the code coverage report, use `grunt cover`.\n\nFeel free to fork if you see possible improvements!\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## Contributors\n\n| [](https://twitter.com/jdalton \"Follow @jdalton on Twitter\") |\n|---|\n| [John-David Dalton](http://allyoucanleet.com/) |\n\n## License\n\nPunycode.js is available under the [MIT](https://mths.be/mit) license.\n# global-prefix [](https://www.npmjs.com/package/global-prefix) [](https://npmjs.org/package/global-prefix) [](https://npmjs.org/package/global-prefix) [](https://travis-ci.org/jonschlinkert/global-prefix) [](https://ci.appveyor.com/project/jonschlinkert/global-prefix)\n\n> Get the npm global path prefix.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save global-prefix\n```\n\nThis is partially based on the code used by npm internally to resolve the global prefix.\n\n## Usage\n\n```js\nvar prefix = require('global-prefix');\n//=> '/usr/local' (this path will differ by system and user-defined config)\n```\n\n## About\n\n### Related projects\n\n* [global-modules](https://www.npmjs.com/package/global-modules): The directory used by npm for globally installed npm modules. | [homepage](https://github.com/jonschlinkert/global-modules \"The directory used by npm for globally installed npm modules.\")\n* [global-paths](https://www.npmjs.com/package/global-paths): Returns an array of unique \"global\" directories based on the user's platform and environment. The… [more](https://github.com/jonschlinkert/global-paths) | [homepage](https://github.com/jonschlinkert/global-paths \"Returns an array of unique \"global\" directories based on the user's platform and environment. The resulting paths can be used for doing lookups for generators or other globally installed npm packages. Node.js / JavaScript.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 16 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 15 | [doowb](https://github.com/doowb) |\n| 1 | [rmbaad](https://github.com/rmbaad) |\n| 1 | [avengerpenguin](https://github.com/avengerpenguin) |\n| 1 | [jason-chang](https://github.com/jason-chang) |\n| 1 | [jorrit](https://github.com/jorrit) |\n| 1 | [mathiasvr](https://github.com/mathiasvr) |\n| 1 | [tunnckoCore](https://github.com/tunnckoCore) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 28, 2017._\n# is-data-descriptor [](https://www.npmjs.com/package/is-data-descriptor) [](https://travis-ci.org/jonschlinkert/is-data-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript data descriptor.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm i is-data-descriptor --save\n```\n\n## Usage\n\n```js\nvar isDataDesc = require('is-data-descriptor');\n```\n\n## Examples\n\n`true` when the descriptor has valid properties with valid values.\n\n```js\n// `value` can be anything\nisDataDesc({value: 'foo'})\nisDataDesc({value: function() {}})\nisDataDesc({value: true})\n//=> true\n```\n\n`false` when not an object\n\n```js\nisDataDesc('a')\n//=> false\nisDataDesc(null)\n//=> false\nisDataDesc([])\n//=> false\n```\n\n`false` when the object has invalid properties\n\n```js\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', get: function(){}})\n//=> false\nisDataDesc({get: function(){}, value: 'foo'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDataDesc({value: 'foo', enumerable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', configurable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', writable: 'foo'})\n//=> false\n```\n\n## Valid properties\n\nThe only valid data descriptor properties are the following:\n\n* `configurable` (required)\n* `enumerable` (required)\n* `value` (optional)\n* `writable` (optional)\n\nTo be a valid data descriptor, either `value` or `writable` must be defined.\n\n**Invalid properties**\n\nA descriptor may have additional _invalid_ properties (an error will **not** be thrown).\n\n```js\nvar foo = {};\n\nObject.defineProperty(foo, 'bar', {\n enumerable: true,\n whatever: 'blah', // invalid, but doesn't cause an error\n get: function() {\n return 'baz';\n }\n});\n\nconsole.log(foo.bar);\n//=> 'baz'\n```\n\n## Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor)\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://www.npmjs.com/package/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor)\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-data-descriptor/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 [Jon Schlinkert](https://github.com/jonschlinkert)\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb) on December 28, 2015._\n# parse-passwd [](https://www.npmjs.com/package/parse-passwd) [](https://npmjs.org/package/parse-passwd) [](https://travis-ci.org/doowb/parse-passwd) [](https://ci.appveyor.com/project/doowb/parse-passwd)\n\n> Parse a passwd file into a list of users.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save parse-passwd\n```\n\n## Usage\n\n```js\nvar parse = require('parse-passwd');\n```\n\n## API\n\n**Example**\n\n```js\n// assuming '/etc/passwd' contains:\n// doowb:*:123:123:Brian Woodward:/Users/doowb:/bin/bash\nconsole.log(parse(fs.readFileSync('/etc/passwd', 'utf8')));\n\n//=> [\n//=> {\n//=> username: 'doowb',\n//=> password: '*',\n//=> uid: '123',\n//=> gid: '123',\n//=> gecos: 'Brian Woodward',\n//=> homedir: '/Users/doowb',\n//=> shell: '/bin/bash'\n//=> }\n//=> ]\n```\n\n**Params**\n\n* `content` **{String}**: Content of a passwd file to parse.\n* `returns` **{Array}**: Array of user objects parsed from the content.\n\n## About\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](contributing.md) for avice on opening issues, pull requests, and coding standards.\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Brian Woodward**\n\n* [github/doowb](https://github.com/doowb)\n* [twitter/doowb](http://twitter.com/doowb)\n\n### License\n\nCopyright © 2016, [Brian Woodward](https://github.com/doowb).\nReleased under the [MIT license](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 19, 2016._\n# Glob\n\nMatch files using the patterns the shell uses, like stars and stuff.\n\n[](https://travis-ci.org/isaacs/node-glob/) [](https://ci.appveyor.com/project/isaacs/node-glob) [](https://coveralls.io/github/isaacs/node-glob?branch=master)\n\nThis is a glob implementation in JavaScript. It uses the `minimatch`\nlibrary to do its matching.\n\n\n\n## Usage\n\nInstall with npm\n\n```\nnpm i glob\n```\n\n```javascript\nvar glob = require(\"glob\")\n\n// options is optional\nglob(\"**/*.js\", options, function (er, files) {\n // files is an array of filenames.\n // If the `nonull` option is set, and nothing\n // was found, then files is [\"**/*.js\"]\n // er is an error object or null.\n})\n```\n\n## Glob Primer\n\n\"Globs\" are the patterns you type when you do stuff like `ls *.js` on\nthe command line, or put `build/*` in a `.gitignore` file.\n\nBefore parsing the path part patterns, braced sections are expanded\ninto a set. Braced sections start with `{` and end with `}`, with any\nnumber of comma-delimited sections within. Braced sections may contain\nslash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.\n\nThe following characters have special magic meaning when used in a\npath portion:\n\n* `*` Matches 0 or more characters in a single path portion\n* `?` Matches 1 character\n* `[...]` Matches a range of characters, similar to a RegExp range.\n If the first character of the range is `!` or `^` then it matches\n any character not in the range.\n* `!(pattern|pattern|pattern)` Matches anything that does not match\n any of the patterns provided.\n* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the\n patterns provided.\n* `+(pattern|pattern|pattern)` Matches one or more occurrences of the\n patterns provided.\n* `*(a|b|c)` Matches zero or more occurrences of the patterns provided\n* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns\n provided\n* `**` If a \"globstar\" is alone in a path portion, then it matches\n zero or more directories and subdirectories searching for matches.\n It does not crawl symlinked directories.\n\n### Dots\n\nIf a file or directory path portion has a `.` as the first character,\nthen it will not match any glob pattern unless that pattern's\ncorresponding path part also has a `.` as its first character.\n\nFor example, the pattern `a/.*/c` would match the file at `a/.b/c`.\nHowever the pattern `a/*/c` would not, because `*` does not start with\na dot character.\n\nYou can make glob treat dots as normal characters by setting\n`dot:true` in the options.\n\n### Basename Matching\n\nIf you set `matchBase:true` in the options, and the pattern has no\nslashes in it, then it will seek for any file anywhere in the tree\nwith a matching basename. For example, `*.js` would match\n`test/simple/basic.js`.\n\n### Empty Sets\n\nIf no matching files are found, then an empty array is returned. This\ndiffers from the shell, where the pattern itself is returned. For\nexample:\n\n $ echo a*s*d*f\n a*s*d*f\n\nTo get the bash-style behavior, set the `nonull:true` in the options.\n\n### See Also:\n\n* `man sh`\n* `man bash` (Search for \"Pattern Matching\")\n* `man 3 fnmatch`\n* `man 5 gitignore`\n* [minimatch documentation](https://github.com/isaacs/minimatch)\n\n## glob.hasMagic(pattern, [options])\n\nReturns `true` if there are any special characters in the pattern, and\n`false` otherwise.\n\nNote that the options affect the results. If `noext:true` is set in\nthe options object, then `+(a|b)` will not be considered a magic\npattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`\nthen that is considered magical, unless `nobrace:true` is set in the\noptions.\n\n## glob(pattern, [options], cb)\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* `cb` `{Function}`\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nPerform an asynchronous glob search.\n\n## glob.sync(pattern, [options])\n\n* `pattern` `{String}` Pattern to be matched\n* `options` `{Object}`\n* return: `{Array<String>}` filenames found matching the pattern\n\nPerform a synchronous glob search.\n\n## Class: glob.Glob\n\nCreate a Glob object by instantiating the `glob.Glob` class.\n\n```javascript\nvar Glob = require(\"glob\").Glob\nvar mg = new Glob(pattern, options, cb)\n```\n\nIt's an EventEmitter, and starts walking the filesystem to find matches\nimmediately.\n\n### new glob.Glob(pattern, [options], [cb])\n\n* `pattern` `{String}` pattern to search for\n* `options` `{Object}`\n* `cb` `{Function}` Called when an error occurs, or matches are found\n * `err` `{Error | null}`\n * `matches` `{Array<String>}` filenames found matching the pattern\n\nNote that if the `sync` flag is set in the options, then matches will\nbe immediately available on the `g.found` member.\n\n### Properties\n\n* `minimatch` The minimatch object that the glob uses.\n* `options` The options object passed in.\n* `aborted` Boolean which is set to true when calling `abort()`. There\n is no way at this time to continue a glob search after aborting, but\n you can re-use the statCache to avoid having to duplicate syscalls.\n* `cache` Convenience object. Each field has the following possible\n values:\n * `false` - Path does not exist\n * `true` - Path exists\n * `'FILE'` - Path exists, and is not a directory\n * `'DIR'` - Path exists, and is a directory\n * `[file, entries, ...]` - Path exists, is a directory, and the\n array value is the results of `fs.readdir`\n* `statCache` Cache of `fs.stat` results, to prevent statting the same\n path multiple times.\n* `symlinks` A record of which paths are symbolic links, which is\n relevant in resolving `**` patterns.\n* `realpathCache` An optional object which is passed to `fs.realpath`\n to minimize unnecessary syscalls. It is stored on the instantiated\n Glob object, and may be re-used.\n\n### Events\n\n* `end` When the matching is finished, this is emitted with all the\n matches found. If the `nonull` option is set, and no match was found,\n then the `matches` list contains the original pattern. The matches\n are sorted, unless the `nosort` flag is set.\n* `match` Every time a match is found, this is emitted with the specific\n thing that matched. It is not deduplicated or resolved to a realpath.\n* `error` Emitted when an unexpected error is encountered, or whenever\n any fs error occurs if `options.strict` is set.\n* `abort` When `abort()` is called, this event is raised.\n\n### Methods\n\n* `pause` Temporarily stop the search\n* `resume` Resume the search\n* `abort` Stop the search forever\n\n### Options\n\nAll the options that can be passed to Minimatch can also be passed to\nGlob to change pattern matching behavior. Also, some have been added,\nor have glob-specific ramifications.\n\nAll options are false by default, unless otherwise noted.\n\nAll options are added to the Glob object, as well.\n\nIf you are running many `glob` operations, you can pass a Glob object\nas the `options` argument to a subsequent operation to shortcut some\n`stat` and `readdir` calls. At the very least, you may pass in shared\n`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that\nparallel glob operations will be sped up by sharing information about\nthe filesystem.\n\n* `cwd` The current working directory in which to search. Defaults\n to `process.cwd()`.\n* `root` The place where patterns starting with `/` will be mounted\n onto. Defaults to `path.resolve(options.cwd, \"/\")` (`/` on Unix\n systems, and `C:\\` or some such on Windows.)\n* `dot` Include `.dot` files in normal matches and `globstar` matches.\n Note that an explicit dot in a portion of the pattern will always\n match dot files.\n* `nomount` By default, a pattern starting with a forward-slash will be\n \"mounted\" onto the root setting, so that a valid filesystem path is\n returned. Set this flag to disable that behavior.\n* `mark` Add a `/` character to directory matches. Note that this\n requires additional stat calls.\n* `nosort` Don't sort the results.\n* `stat` Set to true to stat *all* results. This reduces performance\n somewhat, and is completely unnecessary, unless `readdir` is presumed\n to be an untrustworthy indicator of file existence.\n* `silent` When an unusual error is encountered when attempting to\n read a directory, a warning will be printed to stderr. Set the\n `silent` option to true to suppress these warnings.\n* `strict` When an unusual error is encountered when attempting to\n read a directory, the process will just continue on in search of\n other matches. Set the `strict` option to raise an error in these\n cases.\n* `cache` See `cache` property above. Pass in a previously generated\n cache object to save some fs calls.\n* `statCache` A cache of results of filesystem information, to prevent\n unnecessary stat calls. While it should not normally be necessary\n to set this, you may pass the statCache from one glob() call to the\n options object of another, if you know that the filesystem will not\n change between calls. (See \"Race Conditions\" below.)\n* `symlinks` A cache of known symbolic links. You may pass in a\n previously generated `symlinks` object to save `lstat` calls when\n resolving `**` matches.\n* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.\n* `nounique` In some cases, brace-expanded patterns can result in the\n same file showing up multiple times in the result set. By default,\n this implementation prevents duplicates in the result set. Set this\n flag to disable that behavior.\n* `nonull` Set to never return an empty set, instead returning a set\n containing the pattern itself. This is the default in glob(3).\n* `debug` Set to enable debug logging in minimatch and glob.\n* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.\n* `noglobstar` Do not match `**` against multiple filenames. (Ie,\n treat it as a normal `*` instead.)\n* `noext` Do not match `+(a|b)` \"extglob\" patterns.\n* `nocase` Perform a case-insensitive match. Note: on\n case-insensitive filesystems, non-magic patterns will match by\n default, since `stat` and `readdir` will not raise errors.\n* `matchBase` Perform a basename-only match if the pattern does not\n contain any slash characters. That is, `*.js` would be treated as\n equivalent to `**/*.js`, matching all js files in all directories.\n* `nodir` Do not match directories, only files. (Note: to match\n *only* directories, simply put a `/` at the end of the pattern.)\n* `ignore` Add a pattern or an array of glob patterns to exclude matches.\n Note: `ignore` patterns are *always* in `dot:true` mode, regardless\n of any other settings.\n* `follow` Follow symlinked directories when expanding `**` patterns.\n Note that this can result in a lot of duplicate references in the\n presence of cyclic links.\n* `realpath` Set to true to call `fs.realpath` on all of the results.\n In the case of a symlink that cannot be resolved, the full absolute\n path to the matched entry is returned (though it will usually be a\n broken symlink)\n* `absolute` Set to true to always receive absolute paths for matched\n files. Unlike `realpath`, this also affects the values returned in\n the `match` event.\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between node-glob and other\nimplementations, and are intentional.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.3, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nNote that symlinked directories are not crawled as part of a `**`,\nthough their contents may match against subsequent portions of the\npattern. This prevents infinite loops and duplicates and the like.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen glob returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`glob.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n\n### Comments and Negation\n\nPreviously, this module let you mark a pattern as a \"comment\" if it\nstarted with a `#` character, or a \"negated\" pattern if it started\nwith a `!` character.\n\nThese options were deprecated in version 5, and removed in version 6.\n\nTo specify things that should not match, use the `ignore` option.\n\n## Windows\n\n**Please only use forward-slashes in glob expressions.**\n\nThough windows uses either `/` or `\\` as its path separator, only `/`\ncharacters are used by this glob implementation. You must use\nforward-slashes **only** in glob expressions. Back-slashes will always\nbe interpreted as escape characters, not path separators.\n\nResults from absolute patterns such as `/foo/*` are mounted onto the\nroot setting using `path.join`. On windows, this will by default result\nin `/foo/*` matching `C:\\foo\\bar.txt`.\n\n## Race Conditions\n\nGlob searching, by its very nature, is susceptible to race conditions,\nsince it relies on directory walking and such.\n\nAs a result, it is possible that a file that exists when glob looks for\nit may have been deleted or modified by the time it returns the result.\n\nAs part of its internal implementation, this program caches all stat\nand readdir calls that it makes, in order to cut down on system\noverhead. However, this also makes it even more susceptible to races,\nespecially if the cache or statCache objects are reused between glob\ncalls.\n\nUsers are thus advised not to use a glob result as a guarantee of\nfilesystem state in the face of rapid changes. For the vast majority\nof operations, this is never a problem.\n\n## Contributing\n\nAny change to behavior (including bugfixes) must come with a test.\n\nPatches that fail tests or reduce performance will be rejected.\n\n```\n# to run tests\nnpm test\n\n# to re-generate test fixtures\nnpm run test-regen\n\n# to benchmark against bash/zsh\nnpm run bench\n\n# to profile javascript\nnpm run prof\n```\n# nanomatch [](https://www.npmjs.com/package/nanomatch) [](https://npmjs.org/package/nanomatch) [](https://npmjs.org/package/nanomatch) [](https://travis-ci.org/micromatch/nanomatch) [](https://ci.appveyor.com/project/micromatch/nanomatch)\n\n> Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Table of Contents\n\n<details>\n<summary><strong>Details</strong></summary>\n\n- [Install](#install)\n- [What is nanomatch?](#what-is-nanomatch)\n- [Getting started](#getting-started)\n * [Installing nanomatch](#installing-nanomatch)\n * [Usage](#usage)\n- [Documentation](#documentation)\n * [Escaping](#escaping)\n- [API](#api)\n- [Options](#options)\n * [options.basename](#optionsbasename)\n * [options.bash](#optionsbash)\n * [options.cache](#optionscache)\n * [options.dot](#optionsdot)\n * [options.failglob](#optionsfailglob)\n * [options.ignore](#optionsignore)\n * [options.matchBase](#optionsmatchbase)\n * [options.nocase](#optionsnocase)\n * [options.nodupes](#optionsnodupes)\n * [options.noglobstar](#optionsnoglobstar)\n * [options.nonegate](#optionsnonegate)\n * [options.nonull](#optionsnonull)\n * [options.nullglob](#optionsnullglob)\n * [options.slash](#optionsslash)\n * [options.star](#optionsstar)\n * [options.snapdragon](#optionssnapdragon)\n * [options.sourcemap](#optionssourcemap)\n * [options.unescape](#optionsunescape)\n * [options.unixify](#optionsunixify)\n- [Features](#features)\n- [Bash expansion libs](#bash-expansion-libs)\n- [Benchmarks](#benchmarks)\n * [Running benchmarks](#running-benchmarks)\n * [Nanomatch vs. Minimatch vs. Multimatch](#nanomatch-vs-minimatch-vs-multimatch)\n- [About](#about)\n\n</details>\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save nanomatch\n```\n\n<details>\n<summary><strong>Release history</strong></summary>\n\n## History\n\n### key\n\nChangelog entries are classified using the following labels _(from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog)_):\n\n* `added`: for new features\n* `changed`: for changes in existing functionality\n* `deprecated`: for once-stable features removed in upcoming releases\n* `removed`: for deprecated features removed in this release\n* `fixed`: for any bug fixes\n* `bumped`: updated dependencies, only minor or higher will be listed.\n\n### [1.1.0](https://github.com/micromatch/nanomatch/compare/1.0.4...1.1.0) - 2017-04-11\n\n**Fixed**\n\n* adds support for unclosed quotes\n\n**Added**\n\n* adds support for `options.noglobstar`\n\n### [1.0.4](https://github.com/micromatch/nanomatch/compare/1.0.3...1.0.4) - 2017-04-06\n\nHousekeeping updates. Adds documentation section about escaping, cleans up utils.\n\n### [1.0.3](https://github.com/micromatch/nanomatch/compare/1.0.1...1.0.3) - 2017-04-06\n\nThis release includes fixes for windows path edge cases and other improvements for stricter adherence to bash spec.\n\n**Fixed**\n\n* More windows path edge cases\n\n**Added**\n\n* Support for bash-like quoted strings for escaping sequences of characters, such as `foo/\"**\"/bar` where `**` should be matched literally and not evaluated as special characters.\n\n### [1.0.1](https://github.com/micromatch/nanomatch/compare/1.0.0...1.0.1) - 2016-12-12\n\n**Added**\n\n* Support for windows path edge cases where backslashes are used in brackets or other unusual combinations.\n\n### [1.0.0](https://github.com/micromatch/nanomatch/compare/0.1.0...1.0.0) - 2016-12-12\n\nStable release.\n\n### [0.1.0] - 2016-10-08\n\nFirst release.\n\n</details>\n\n## What is nanomatch?\n\nNanomatch is a fast and accurate glob matcher with full support for standard Bash glob features, including the following \"metacharacters\": `*`, `**`, `?` and `[...]`.\n\n**Learn more**\n\n* [Getting started](#getting-started): learn how to install and begin using nanomatch\n* [Features](#features): jump to info about supported patterns, and a glob matching reference\n* [API documentation](#api): jump to available options and methods\n* [Unit tests](test): visit unit tests. there is no better way to learn a code library than spending time the unit tests. Nanomatch has 36,000 unit tests - go become a glob matching ninja!\n\n<details>\n<summary><strong>How is this different?</strong></summary>\n\n**Speed and accuracy**\n\nNanomatch uses [snapdragon](https://github.com/jonschlinkert/snapdragon) for parsing and compiling globs, which results in:\n\n* Granular control over the entire conversion process in a way that is easy to understand, reason about, and customize.\n* Faster matching, from a combination of optimized glob patterns and (optional) caching.\n* Much greater accuracy than minimatch. In fact, nanomatch passes _all of the spec tests_ from bash, including some that bash still fails. However, since there is no real specification for globs, if you encounter a pattern that yields unexpected match results [after researching previous issues](../../issues), [please let us know](../../issues/new).\n\n**Basic globbing only**\n\nNanomatch supports [basic globbing only](#features), which is limited to `*`, `**`, `?` and regex-like brackets.\n\nIf you need support for the other [bash \"expansion\" types](#bash-expansion-libs) (in addition to the wildcard matching provided by nanomatch), consider using [micromatch](https://github.com/micromatch/micromatch) instead. _(micromatch >=3.0.0 uses the nanomatch parser and compiler for basic glob matching)_\n\n</details>\n\n## Getting started\n\n### Installing nanomatch\n\n**Install with [yarn](https://yarnpkg.com/)**\n\n```sh\n$ yarn add nanomatch\n```\n\n**Install with [npm](https://npmjs.com)**\n\n```sh\n$ npm install nanomatch\n```\n\n### Usage\n\nAdd nanomatch to your project using node's `require()` system:\n\n```js\nvar nanomatch = require('nanomatch');\n\n// the main export is a function that takes an array of strings to match\n// and a string or array of patterns to use for matching\nnanomatch(list, patterns[, options]);\n```\n\n**Params**\n\n* `list` **{String|Array}**: List of strings to perform matches against. This is often a list of file paths.\n* `patterns` **{String|Array}**: One or more [glob paterns](#features) to use for matching.\n* `options` **{Object}**: Any [supported options](#options) may be passed\n\n**Examples**\n\n```js\nvar nm = require('nanomatch');\nconsole.log(nm(['a', 'b/b', 'c/c/c'], '*'));\n//=> ['a']\n\nconsole.log(nm(['a', 'b/b', 'c/c/c'], '*/*'));\n//=> ['b/b']\n\nconsole.log(nm(['a', 'b/b', 'c/c/c'], '**'));\n//=> ['a', 'b/b', 'c/c/c']\n```\n\nSee the [API documentation](#api) for available methods and [options](https://github.com/einaros/options.js).\n\n## Documentation\n\n### Escaping\n\n_Backslashes and quotes_ can be used to escape characters, forcing nanomatch to regard those characters as a literal characters.\n\n**Backslashes**\n\nUse backslashes to escape single characters. For example, the following pattern would match `foo/*/bar` exactly:\n\n```js\n'foo/\\*/bar'\n```\n\nThe following pattern would match `foo/` followed by a literal `*`, followed by zero or more of any characters besides `/`, followed by `/bar`.\n\n```js\n'foo/\\**/bar'\n```\n\n**Quoted strings**\n\nUse single or double quotes to escape sequences of characters. For example, the following patterns would match `foo/**/bar` exactly:\n\n```js\n'foo/\"**\"/bar'\n'foo/\\'**\\'/bar'\n\"foo/'**'/bar\"\n```\n\n**Matching literal quotes**\n\nIf you need to match quotes literally, you can escape them as well. For example, the following will match `foo/\"*\"/bar`, `foo/\"a\"/bar`, `foo/\"b\"/bar`, or `foo/\"c\"/bar`:\n\n```js\n'foo/\\\\\"*\\\\\"/bar'\n```\n\nAnd the following will match `foo/'*'/bar`, `foo/'a'/bar`, `foo/'b'/bar`, or `foo/'c'/bar`:\n\n```js\n'foo/\\\\\\'*\\\\\\'/bar'\n```\n\n## API\n\n### [nanomatch](index.js#L40)\n\nThe main function takes a list of strings and one or more glob patterns to use for matching.\n\n**Params**\n\n* `list` **{Array}**: A list of strings to match\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of matches\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm(list, patterns[, options]);\n\nconsole.log(nm(['a.js', 'a.txt'], ['*.js']));\n//=> [ 'a.js' ]\n```\n\n### [.match](index.js#L106)\n\nSimilar to the main function, but `pattern` must be a string.\n\n**Params**\n\n* `list` **{Array}**: Array of strings to match\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of matches\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.match(list, pattern[, options]);\n\nconsole.log(nm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));\n//=> ['a.a', 'a.aa']\n```\n\n### [.isMatch](index.js#L167)\n\nReturns true if the specified `string` matches the given glob `pattern`.\n\n**Params**\n\n* `string` **{String}**: String to match\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if the string matches the glob pattern.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.isMatch(string, pattern[, options]);\n\nconsole.log(nm.isMatch('a.a', '*.a'));\n//=> true\nconsole.log(nm.isMatch('a.b', '*.a'));\n//=> false\n```\n\n### [.some](index.js#L205)\n\nReturns true if some of the elements in the given `list` match any of the given glob `patterns`.\n\n**Params**\n\n* `list` **{String|Array}**: The string or array of strings to test. Returns as soon as the first match is found.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.some(list, patterns[, options]);\n\nconsole.log(nm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));\n// true\nconsole.log(nm.some(['foo.js'], ['*.js', '!foo.js']));\n// false\n```\n\n### [.every](index.js#L243)\n\nReturns true if every element in the given `list` matches at least one of the given glob `patterns`.\n\n**Params**\n\n* `list` **{String|Array}**: The string or array of strings to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.every(list, patterns[, options]);\n\nconsole.log(nm.every('foo.js', ['foo.js']));\n// true\nconsole.log(nm.every(['foo.js', 'bar.js'], ['*.js']));\n// true\nconsole.log(nm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));\n// false\nconsole.log(nm.every(['foo.js'], ['*.js', '!foo.js']));\n// false\n```\n\n### [.any](index.js#L277)\n\nReturns true if **any** of the given glob `patterns` match the specified `string`.\n\n**Params**\n\n* `str` **{String|Array}**: The string to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.any(string, patterns[, options]);\n\nconsole.log(nm.any('a.a', ['b.*', '*.a']));\n//=> true\nconsole.log(nm.any('a.a', 'b.*'));\n//=> false\n```\n\n### [.all](index.js#L325)\n\nReturns true if **all** of the given `patterns` match the specified string.\n\n**Params**\n\n* `str` **{String|Array}**: The string to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.all(string, patterns[, options]);\n\nconsole.log(nm.all('foo.js', ['foo.js']));\n// true\n\nconsole.log(nm.all('foo.js', ['*.js', '!foo.js']));\n// false\n\nconsole.log(nm.all('foo.js', ['*.js', 'foo.js']));\n// true\n\nconsole.log(nm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));\n// true\n```\n\n### [.not](index.js#L359)\n\nReturns a list of strings that _**do not match any**_ of the given `patterns`.\n\n**Params**\n\n* `list` **{Array}**: Array of strings to match.\n* `patterns` **{String|Array}**: One or more glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of strings that **do not match** the given patterns.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.not(list, patterns[, options]);\n\nconsole.log(nm.not(['a.a', 'b.b', 'c.c'], '*.a'));\n//=> ['b.b', 'c.c']\n```\n\n### [.contains](index.js#L394)\n\nReturns true if the given `string` contains the given pattern. Similar to [.isMatch](#isMatch) but the pattern can match any part of the string.\n\n**Params**\n\n* `str` **{String}**: The string to match.\n* `patterns` **{String|Array}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if the patter matches any part of `str`.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.contains(string, pattern[, options]);\n\nconsole.log(nm.contains('aa/bb/cc', '*b'));\n//=> true\nconsole.log(nm.contains('aa/bb/cc', '*d'));\n//=> false\n```\n\n### [.matchKeys](index.js#L450)\n\nFilter the keys of the given object with the given `glob` pattern and `options`. Does not attempt to match nested keys. If you need this feature, use [glob-object](https://github.com/jonschlinkert/glob-object) instead.\n\n**Params**\n\n* `object` **{Object}**: The object with keys to filter.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Object}**: Returns an object with only keys that match the given patterns.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.matchKeys(object, patterns[, options]);\n\nvar obj = { aa: 'a', ab: 'b', ac: 'c' };\nconsole.log(nm.matchKeys(obj, '*b'));\n//=> { ab: 'b' }\n```\n\n### [.matcher](index.js#L479)\n\nReturns a memoized matcher function from the given glob `pattern` and `options`. The returned function takes a string to match as its only argument and returns true if the string is a match.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed.\n* `returns` **{Function}**: Returns a matcher function.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.matcher(pattern[, options]);\n\nvar isMatch = nm.matcher('*.!(*a)');\nconsole.log(isMatch('a.a'));\n//=> false\nconsole.log(isMatch('a.b'));\n//=> true\n```\n\n### [.capture](index.js#L560)\n\nReturns an array of matches captured by `pattern` in `string, or`null` if the pattern did not match.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `string` **{String}**: String to match\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns an array of captures if the string matches the glob pattern, otherwise `null`.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.capture(pattern, string[, options]);\n\nconsole.log(nm.capture('test/*.js', 'test/foo.js'));\n//=> ['foo']\nconsole.log(nm.capture('test/*.js', 'foo/bar.css'));\n//=> null\n```\n\n### [.makeRe](index.js#L595)\n\nCreate a regular expression from the given glob `pattern`.\n\n**Params**\n\n* `pattern` **{String}**: A glob pattern to convert to regex.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed.\n* `returns` **{RegExp}**: Returns a regex created from the given pattern.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.makeRe(pattern[, options]);\n\nconsole.log(nm.makeRe('*.js'));\n//=> /^(?:(\\.[\\\\\\/])?(?!\\.)(?=.)[^\\/]*?\\.js)$/\n```\n\n### [.create](index.js#L658)\n\nParses the given glob `pattern` and returns an object with the compiled `output` and optional source `map`.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern to parse and compile.\n* `options` **{Object}**: Any [options](#options) to change how parsing and compiling is performed.\n* `returns` **{Object}**: Returns an object with the parsed AST, compiled string and optional source map.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.create(pattern[, options]);\n\nconsole.log(nm.create('abc/*.js'));\n// { options: { source: 'string', sourcemap: true },\n// state: {},\n// compilers:\n// { ... },\n// output: '(\\\\.[\\\\\\\\\\\\/])?abc\\\\/(?!\\\\.)(?=.)[^\\\\/]*?\\\\.js',\n// ast:\n// { type: 'root',\n// errors: [],\n// nodes:\n// [ ... ],\n// dot: false,\n// input: 'abc/*.js' },\n// parsingErrors: [],\n// map:\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/*.js' ] },\n// position: { line: 1, column: 28 },\n// content: {},\n// files: {},\n// idx: 6 }\n```\n\n### [.parse](index.js#L697)\n\nParse the given `str` with the given `options`.\n\n**Params**\n\n* `str` **{String}**\n* `options` **{Object}**\n* `returns` **{Object}**: Returns an AST\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.parse(pattern[, options]);\n\nvar ast = nm.parse('a/{b,c}/d');\nconsole.log(ast);\n// { type: 'root',\n// errors: [],\n// input: 'a/{b,c}/d',\n// nodes:\n// [ { type: 'bos', val: '' },\n// { type: 'text', val: 'a/' },\n// { type: 'brace',\n// nodes:\n// [ { type: 'brace.open', val: '{' },\n// { type: 'text', val: 'b,c' },\n// { type: 'brace.close', val: '}' } ] },\n// { type: 'text', val: '/d' },\n// { type: 'eos', val: '' } ] }\n```\n\n### [.compile](index.js#L745)\n\nCompile the given `ast` or string with the given `options`.\n\n**Params**\n\n* `ast` **{Object|String}**\n* `options` **{Object}**\n* `returns` **{Object}**: Returns an object that has an `output` property with the compiled string.\n\n**Example**\n\n```js\nvar nm = require('nanomatch');\nnm.compile(ast[, options]);\n\nvar ast = nm.parse('a/{b,c}/d');\nconsole.log(nm.compile(ast));\n// { options: { source: 'string' },\n// state: {},\n// compilers:\n// { eos: [Function],\n// noop: [Function],\n// bos: [Function],\n// brace: [Function],\n// 'brace.open': [Function],\n// text: [Function],\n// 'brace.close': [Function] },\n// output: [ 'a/(b|c)/d' ],\n// ast:\n// { ... },\n// parsingErrors: [] }\n```\n\n### [.clearCache](index.js#L768)\n\nClear the regex cache.\n\n**Example**\n\n```js\nnm.clearCache();\n```\n\n## Options\n\n<details>\n<summary><strong>basename</strong></summary>\n\n### options.basename\n\nAllow glob patterns without slashes to match a file path based on its basename. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `matchBase`.\n\nType: `boolean`\n\nDefault: `false`\n\n**Example**\n\n```js\nnm(['a/b.js', 'a/c.md'], '*.js');\n//=> []\n\nnm(['a/b.js', 'a/c.md'], '*.js', {matchBase: true});\n//=> ['a/b.js']\n```\n\n</details>\n\n<details>\n<summary><strong>bash</strong></summary>\n\n### options.bash\n\nEnabled by default, this option enforces bash-like behavior with stars immediately following a bracket expression. Bash bracket expressions are similar to regex character classes, but unlike regex, a star following a bracket expression **does not repeat the bracketed characters**. Instead, the star is treated the same as an other star.\n\nType: `boolean`\n\nDefault: `true`\n\n**Example**\n\n```js\nvar files = ['abc', 'ajz'];\nconsole.log(nm(files, '[a-c]*'));\n//=> ['abc', 'ajz']\n\nconsole.log(nm(files, '[a-c]*', {bash: false}));\n```\n\n</details>\n\n<details>\n<summary><strong>cache</strong></summary>\n\n### options.cache\n\nDisable regex and function memoization.\n\nType: `boolean`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>dot</strong></summary>\n\n### options.dot\n\nMatch dotfiles. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `dot`.\n\nType: `boolean`\n\nDefault: `false`\n\n</details>\n\n<details>\n<summary><strong>failglob</strong></summary>\n\n### options.failglob\n\nSimilar to the `--failglob` behavior in Bash, throws an error when no matches are found.\n\nType: `boolean`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>ignore</strong></summary>\n\n### options.ignore\n\nString or array of glob patterns to match files to ignore.\n\nType: `String|Array`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>matchBase</strong></summary>\n\n### options.matchBase\n\nAlias for [options.basename](#options-basename).\n\n</details>\n\n<details>\n<summary><strong>nocase</strong></summary>\n\n### options.nocase\n\nUse a case-insensitive regex for matching files. Same behavior as [minimatch](https://github.com/isaacs/minimatch).\n\nType: `boolean`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>nodupes</strong></summary>\n\n### options.nodupes\n\nRemove duplicate elements from the result array.\n\nType: `boolean`\n\nDefault: `true` (enabled by default)\n\n**Example**\n\nExample of using the `unescape` and `nodupes` options together:\n\n```js\nnm.match(['a/b/c', 'a/b/c'], '**');\n//=> ['abc']\n\nnm.match(['a/b/c', 'a/b/c'], '**', {nodupes: false});\n//=> ['a/b/c', 'a/b/c']\n```\n\n</details>\n\n<details>\n<summary><strong>nonegate</strong></summary>\n\n### options.noglobstar\n\nDisable matching with globstars (`**`).\n\nType: `boolean`\n\nDefault: `undefined`\n\n```js\nnm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**');\n//=> ['a/b', 'a/b/c', 'a/b/c/d']\n\nnm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**', {noglobstar: true});\n//=> ['a/b']\n```\n\n</details>\n\n<details>\n<summary><strong>nonegate</strong></summary>\n\n### options.nonegate\n\nDisallow negation (`!`) patterns, and treat leading `!` as a literal character to match.\n\nType: `boolean`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>nonull</strong></summary>\n\n### options.nonull\n\nAlias for [options.nullglob](#options-nullglob).\n\n</details>\n\n<details>\n<summary><strong>nullglob</strong></summary>\n\n### options.nullglob\n\nIf `true`, when no matches are found the actual (arrayified) glob pattern is returned instead of an empty array. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `nonull`.\n\nType: `boolean`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong><a name=\"slash\">slash</a></strong></summary>\n\n### options.slash\n\nCustomize the slash character(s) to use for matching.\n\nType: `string|function`\n\nDefault: `[/\\\\]` (forward slash and backslash)\n\n</details>\n\n<details>\n<summary><strong><a name=\"star\">star</a></strong></summary>\n\n### options.star\n\nCustomize the star character(s) to use for matching. It's not recommended that you modify this unless you have advanced knowledge of the compiler and matching rules.\n\nType: `string|function`\n\nDefault: `[^/\\\\]*?`\n\n</details>\n\n<details>\n<summary><strong><a name=\"snapdragon\">snapdragon</a></strong></summary>\n\n### options.snapdragon\n\nPass your own instance of [snapdragon](https://github.com/jonschlinkert/snapdragon) to customize parsers or compilers.\n\nType: `object`\n\nDefault: `undefined`\n\n</details>\n\n<details>\n<summary><strong>snapdragon</strong></summary>\n\n### options.sourcemap\n\nGenerate a source map by enabling the `sourcemap` option with the `.parse`, `.compile`, or `.create` methods.\n\n**Examples**\n\n```js\nvar nm = require('nanomatch');\n\nvar res = nm.create('abc/*.js', {sourcemap: true});\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,iBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/*.js' ] }\n\nvar ast = nm.parse('abc/**/*.js');\nvar res = nm.compile(ast, {sourcemap: true});\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,2BAAE,EAAC,iBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/**/*.js' ] }\n```\n\n</details>\n\n<details>\n<summary><strong>unescape</strong></summary>\n\n### options.unescape\n\nRemove backslashes from returned matches.\n\nType: `boolean`\n\nDefault: `undefined`\n\n**Example**\n\nIn this example we want to match a literal `*`:\n\n```js\nnm.match(['abc', 'a\\\\*c'], 'a\\\\*c');\n//=> ['a\\\\*c']\n\nnm.match(['abc', 'a\\\\*c'], 'a\\\\*c', {unescape: true});\n//=> ['a*c']\n```\n\n</details>\n\n<details>\n<summary><strong>unixify</strong></summary>\n\n### options.unixify\n\nConvert path separators on returned files to posix/unix-style forward slashes.\n\nType: `boolean`\n\nDefault: `true`\n\n**Example**\n\n```js\nnm.match(['a\\\\b\\\\c'], 'a/**');\n//=> ['a/b/c']\n\nnm.match(['a\\\\b\\\\c'], {unixify: false});\n//=> ['a\\\\b\\\\c']\n```\n\n</details>\n\n## Features\n\nNanomatch has full support for standard Bash glob features, including the following \"metacharacters\": `*`, `**`, `?` and `[...]`.\n\nHere are some examples of how they work:\n\n| **Pattern** | **Description** | \n| --- | --- |\n| `*` | Matches any string except for `/`, leading `.`, or `/.` inside a path |\n| `**` | Matches any string including `/`, but not a leading `.` or `/.` inside a path. More than two stars (e.g. `***` is treated the same as one star, and `**` loses its special meaning | when it's not the only thing in a path segment, per Bash specifications) |\n| `foo*` | Matches any string beginning with `foo` |\n| `*bar*` | Matches any string containing `bar` (beginning, middle or end) |\n| `*.min.js` | Matches any string ending with `.min.js` |\n| `[abc]*.js` | Matches any string beginning with `a`, `b`, or `c` and ending with `.js` |\n| `abc?` | Matches `abcd` or `abcz` but not `abcde` |\n\nThe exceptions noted for `*` apply to all patterns that contain a `*`.\n\n**Not supported**\n\nThe following extended-globbing features are not supported:\n\n* [brace expansion](https://github.com/jonschlinkert/braces) (e.g. `{a,b,c}`)\n* [extglobs](https://github.com/jonschlinkert/extglob) (e.g. `@(a|!(c|d))`)\n* [POSIX brackets](https://github.com/jonschlinkert/expand-brackets) (e.g. `[[:alpha:][:digit:]]`)\n\nIf you need any of these features consider using [micromatch](https://github.com/micromatch/micromatch) instead.\n\n## Bash expansion libs\n\nNanomatch is part of a suite of libraries aimed at bringing the power and expressiveness of [Bash's](https://www.gnu.org/software/bash/) matching and expansion capabilities to JavaScript, _and - as you can see by the [benchmarks](#benchmarks) - without sacrificing speed_.\n\n| **Related library** | **Matching Type** | **Example** | **Description** | \n| --- | --- | --- | --- |\n| `nanomatch` (you are here) | Wildcards | `*` | [Filename expansion](https://www.gnu.org/software/bash/manual/html_node/Filename-Expansion.html#Filename-Expansion), also referred to as globbing and pathname expansion, allows the use of [wildcards](#features) for matching. |\n| [expand-tilde](https://github.com/jonschlinkert/expand-tilde) | Tildes | `~` | [Tilde expansion](https://www.gnu.org/software/bash/manual/html_node/Tilde-Expansion.html#Tilde-Expansion) converts the leading tilde in a file path to the user home directory. |\n| [braces](https://github.com/jonschlinkert/braces) | Braces | `{a,b,c}` | [Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html) |\n| [expand-brackets](https://github.com/jonschlinkert/expand-brackets) | Brackets | `[[:alpha:]]` | [POSIX character classes](https://www.gnu.org/software/grep/manual/html_node/Character-Classes-and-Bracket-Expressions.html) (also referred to as POSIX brackets, or POSIX character classes) |\n| [extglob](https://github.com/jonschlinkert/extglob) | Parens | `!(a\\ | b)` | [Extglobs](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html#Pattern-Matching) |\n| [micromatch](https://github.com/micromatch/micromatch) | All | all | Micromatch is built on top of the other libraries. |\n\nThere are many resources available on the web if you want to dive deeper into how these features work in Bash.\n\n## Benchmarks\n\n### Running benchmarks\n\nInstall dev dependencies:\n\n```bash\nnpm i -d && node benchmark\n```\n\n### Nanomatch vs. Minimatch vs. Multimatch\n\n```bash\n# globstar-basic (182 bytes)\n minimatch x 69,512 ops/sec ±1.92% (88 runs sampled)\n multimatch x 63,376 ops/sec ±1.41% (89 runs sampled)\n nanomatch x 432,451 ops/sec ±0.92% (88 runs sampled)\n\n fastest is nanomatch (by 651% avg)\n\n# large-list-globstar (485686 bytes)\n minimatch x 34.02 ops/sec ±1.42% (59 runs sampled)\n multimatch x 33.58 ops/sec ±1.97% (58 runs sampled)\n nanomatch x 483 ops/sec ±1.06% (86 runs sampled)\n\n fastest is nanomatch (by 1429% avg)\n\n# long-list-globstar (194085 bytes)\n minimatch x 383 ops/sec ±0.74% (90 runs sampled)\n multimatch x 378 ops/sec ±0.59% (89 runs sampled)\n nanomatch x 990 ops/sec ±1.14% (85 runs sampled)\n\n fastest is nanomatch (by 260% avg)\n\n# negation-basic (132 bytes)\n minimatch x 242,145 ops/sec ±1.17% (89 runs sampled)\n multimatch x 76,403 ops/sec ±0.78% (92 runs sampled)\n nanomatch x 537,253 ops/sec ±1.44% (86 runs sampled)\n\n fastest is nanomatch (by 337% avg)\n\n# not-glob-basic (93 bytes)\n minimatch x 252,402 ops/sec ±1.33% (89 runs sampled)\n multimatch x 209,954 ops/sec ±1.30% (90 runs sampled)\n nanomatch x 1,716,468 ops/sec ±1.13% (86 runs sampled)\n\n fastest is nanomatch (by 742% avg)\n\n# star-basic (93 bytes)\n minimatch x 182,780 ops/sec ±1.41% (91 runs sampled)\n multimatch x 153,210 ops/sec ±0.72% (89 runs sampled)\n nanomatch x 599,621 ops/sec ±1.22% (90 runs sampled)\n\n fastest is nanomatch (by 357% avg)\n\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/micromatch/extglob) | [homepage](https://github.com/micromatch/extglob \"Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.\")\n* [is-extglob](https://www.npmjs.com/package/is-extglob): Returns true if a string has an extglob. | [homepage](https://github.com/jonschlinkert/is-extglob \"Returns true if a string has an extglob.\")\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 164 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [devongovett](https://github.com/devongovett) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 18, 2018._\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n# snapdragon-util [](https://www.npmjs.com/package/snapdragon-util) [](https://npmjs.org/package/snapdragon-util) [](https://npmjs.org/package/snapdragon-util) [](https://travis-ci.org/jonschlinkert/snapdragon-util)\n\n> Utilities for the snapdragon parser/compiler.\n\n<details>\n<summary><strong>Table of Contents</strong></summary>\n\n- [Install](#install)\n- [Usage](#usage)\n- [API](#api)\n- [Release history](#release-history)\n * [[3.0.0] - 2017-05-01](#300---2017-05-01)\n * [[0.1.0]](#010)\n- [About](#about)\n\n</details>\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save snapdragon-util\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add snapdragon-util\n```\n\n## Usage\n\n```js\nvar util = require('snapdragon-util');\n```\n\n## API\n\n### [.isNode](index.js#L21)\n\nReturns true if the given value is a node.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar node = new Node({type: 'foo'});\nconsole.log(utils.isNode(node)); //=> true\nconsole.log(utils.isNode({})); //=> false\n```\n\n### [.noop](index.js#L37)\n\nEmit an empty string for the given `node`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{undefined}**\n\n**Example**\n\n```js\n// do nothing for beginning-of-string\nsnapdragon.compiler.set('bos', utils.noop);\n```\n\n### [.identity](index.js#L53)\n\nAppdend `node.val` to `compiler.output`, exactly as it was created by the parser.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{undefined}**\n\n**Example**\n\n```js\nsnapdragon.compiler.set('text', utils.identity);\n```\n\n### [.append](index.js#L76)\n\nPreviously named `.emit`, this method appends the given `val` to `compiler.output` for the given node. Useful when you know what value should be appended advance, regardless of the actual value of `node.val`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Function}**: Returns a compiler middleware function.\n\n**Example**\n\n```js\nsnapdragon.compiler\n .set('i', function(node) {\n this.mapVisit(node);\n })\n .set('i.open', utils.append('<i>'))\n .set('i.close', utils.append('</i>'))\n```\n\n### [.toNoop](index.js#L99)\n\nUsed in compiler middleware, this onverts an AST node into an empty `text` node and deletes `node.nodes` if it exists. The advantage of this method is that, as opposed to completely removing the node, indices will not need to be re-calculated in sibling nodes, and nothing is appended to the output.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `nodes` **{Array}**: Optionally pass a new `nodes` value, to replace the existing `node.nodes` array.\n\n**Example**\n\n```js\nutils.toNoop(node);\n// convert `node.nodes` to the given value instead of deleting it\nutils.toNoop(node, []);\n```\n\n### [.visit](index.js#L128)\n\nVisit `node` with the given `fn`. The built-in `.visit` method in snapdragon automatically calls registered compilers, this allows you to pass a visitor function.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `fn` **{Function}**\n* `returns` **{Object}**: returns the node after recursively visiting all child nodes.\n\n**Example**\n\n```js\nsnapdragon.compiler.set('i', function(node) {\n utils.visit(node, function(childNode) {\n // do stuff with \"childNode\"\n return childNode;\n });\n});\n```\n\n### [.mapVisit](index.js#L155)\n\nMap [visit](#visit) the given `fn` over `node.nodes`. This is called by [visit](#visit), use this method if you do not want `fn` to be called on the first node.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `options` **{Object}**\n* `fn` **{Function}**\n* `returns` **{Object}**: returns the node\n\n**Example**\n\n```js\nsnapdragon.compiler.set('i', function(node) {\n utils.mapVisit(node, function(childNode) {\n // do stuff with \"childNode\"\n return childNode;\n });\n});\n```\n\n### [.addOpen](index.js#L194)\n\nUnshift an `*.open` node onto `node.nodes`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node).\n* `filter` **{Function}**: Optionaly specify a filter function to exclude the node.\n* `returns` **{Object}**: Returns the created opening node.\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nsnapdragon.parser.set('brace', function(node) {\n var match = this.match(/^{/);\n if (match) {\n var parent = new Node({type: 'brace'});\n utils.addOpen(parent, Node);\n console.log(parent.nodes[0]):\n // { type: 'brace.open', val: '' };\n\n // push the parent \"brace\" node onto the stack\n this.push(parent);\n\n // return the parent node, so it's also added to the AST\n return brace;\n }\n});\n```\n\n### [.addClose](index.js#L244)\n\nPush a `*.close` node onto `node.nodes`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node).\n* `filter` **{Function}**: Optionaly specify a filter function to exclude the node.\n* `returns` **{Object}**: Returns the created closing node.\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nsnapdragon.parser.set('brace', function(node) {\n var match = this.match(/^}/);\n if (match) {\n var parent = this.parent();\n if (parent.type !== 'brace') {\n throw new Error('missing opening: ' + '}');\n }\n\n utils.addClose(parent, Node);\n console.log(parent.nodes[parent.nodes.length - 1]):\n // { type: 'brace.close', val: '' };\n\n // no need to return a node, since the parent\n // was already added to the AST\n return;\n }\n});\n```\n\n### [.wrapNodes](index.js#L274)\n\nWraps the given `node` with `*.open` and `*.close` nodes.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node).\n* `filter` **{Function}**: Optionaly specify a filter function to exclude the node.\n* `returns` **{Object}**: Returns the node\n\n### [.pushNode](index.js#L299)\n\nPush the given `node` onto `parent.nodes`, and set `parent` as `node.parent.\n\n**Params**\n\n* `parent` **{Object}**\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Object}**: Returns the child node\n\n**Example**\n\n```js\nvar parent = new Node({type: 'foo'});\nvar node = new Node({type: 'bar'});\nutils.pushNode(parent, node);\nconsole.log(parent.nodes[0].type) // 'bar'\nconsole.log(node.parent.type) // 'foo'\n```\n\n### [.unshiftNode](index.js#L325)\n\nUnshift `node` onto `parent.nodes`, and set `parent` as `node.parent.\n\n**Params**\n\n* `parent` **{Object}**\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{undefined}**\n\n**Example**\n\n```js\nvar parent = new Node({type: 'foo'});\nvar node = new Node({type: 'bar'});\nutils.unshiftNode(parent, node);\nconsole.log(parent.nodes[0].type) // 'bar'\nconsole.log(node.parent.type) // 'foo'\n```\n\n### [.popNode](index.js#L354)\n\nPop the last `node` off of `parent.nodes`. The advantage of using this method is that it checks for `node.nodes` and works with any version of `snapdragon-node`.\n\n**Params**\n\n* `parent` **{Object}**\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Number|Undefined}**: Returns the length of `node.nodes` or undefined.\n\n**Example**\n\n```js\nvar parent = new Node({type: 'foo'});\nutils.pushNode(parent, new Node({type: 'foo'}));\nutils.pushNode(parent, new Node({type: 'bar'}));\nutils.pushNode(parent, new Node({type: 'baz'}));\nconsole.log(parent.nodes.length); //=> 3\nutils.popNode(parent);\nconsole.log(parent.nodes.length); //=> 2\n```\n\n### [.shiftNode](index.js#L382)\n\nShift the first `node` off of `parent.nodes`. The advantage of using this method is that it checks for `node.nodes` and works with any version of `snapdragon-node`.\n\n**Params**\n\n* `parent` **{Object}**\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Number|Undefined}**: Returns the length of `node.nodes` or undefined.\n\n**Example**\n\n```js\nvar parent = new Node({type: 'foo'});\nutils.pushNode(parent, new Node({type: 'foo'}));\nutils.pushNode(parent, new Node({type: 'bar'}));\nutils.pushNode(parent, new Node({type: 'baz'}));\nconsole.log(parent.nodes.length); //=> 3\nutils.shiftNode(parent);\nconsole.log(parent.nodes.length); //=> 2\n```\n\n### [.removeNode](index.js#L409)\n\nRemove the specified `node` from `parent.nodes`.\n\n**Params**\n\n* `parent` **{Object}**\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Object|undefined}**: Returns the removed node, if successful, or undefined if it does not exist on `parent.nodes`.\n\n**Example**\n\n```js\nvar parent = new Node({type: 'abc'});\nvar foo = new Node({type: 'foo'});\nutils.pushNode(parent, foo);\nutils.pushNode(parent, new Node({type: 'bar'}));\nutils.pushNode(parent, new Node({type: 'baz'}));\nconsole.log(parent.nodes.length); //=> 3\nutils.removeNode(parent, foo);\nconsole.log(parent.nodes.length); //=> 2\n```\n\n### [.isType](index.js#L443)\n\nReturns true if `node.type` matches the given `type`. Throws a `TypeError` if `node` is not an instance of `Node`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar node = new Node({type: 'foo'});\nconsole.log(utils.isType(node, 'foo')); // false\nconsole.log(utils.isType(node, 'bar')); // true\n```\n\n### [.hasType](index.js#L486)\n\nReturns true if the given `node` has the given `type` in `node.nodes`. Throws a `TypeError` if `node` is not an instance of `Node`.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar node = new Node({\n type: 'foo',\n nodes: [\n new Node({type: 'bar'}),\n new Node({type: 'baz'})\n ]\n});\nconsole.log(utils.hasType(node, 'xyz')); // false\nconsole.log(utils.hasType(node, 'baz')); // true\n```\n\n### [.firstOfType](index.js#L519)\n\nReturns the first node from `node.nodes` of the given `type`\n\n**Params**\n\n* `nodes` **{Array}**\n* `type` **{String}**\n* `returns` **{Object|undefined}**: Returns the first matching node or undefined.\n\n**Example**\n\n```js\nvar node = new Node({\n type: 'foo',\n nodes: [\n new Node({type: 'text', val: 'abc'}),\n new Node({type: 'text', val: 'xyz'})\n ]\n});\n\nvar textNode = utils.firstOfType(node.nodes, 'text');\nconsole.log(textNode.val);\n//=> 'abc'\n```\n\n### [.findNode](index.js#L556)\n\nReturns the node at the specified index, or the first node of the given `type` from `node.nodes`.\n\n**Params**\n\n* `nodes` **{Array}**\n* `type` **{String|Number}**: Node type or index.\n* `returns` **{Object}**: Returns a node or undefined.\n\n**Example**\n\n```js\nvar node = new Node({\n type: 'foo',\n nodes: [\n new Node({type: 'text', val: 'abc'}),\n new Node({type: 'text', val: 'xyz'})\n ]\n});\n\nvar nodeOne = utils.findNode(node.nodes, 'text');\nconsole.log(nodeOne.val);\n//=> 'abc'\n\nvar nodeTwo = utils.findNode(node.nodes, 1);\nconsole.log(nodeTwo.val);\n//=> 'xyz'\n```\n\n### [.isOpen](index.js#L584)\n\nReturns true if the given node is an \"*.open\" node.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar brace = new Node({type: 'brace'});\nvar open = new Node({type: 'brace.open'});\nvar close = new Node({type: 'brace.close'});\n\nconsole.log(utils.isOpen(brace)); // false\nconsole.log(utils.isOpen(open)); // true\nconsole.log(utils.isOpen(close)); // false\n```\n\n### [.isClose](index.js#L607)\n\nReturns true if the given node is a \"*.close\" node.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar brace = new Node({type: 'brace'});\nvar open = new Node({type: 'brace.open'});\nvar close = new Node({type: 'brace.close'});\n\nconsole.log(utils.isClose(brace)); // false\nconsole.log(utils.isClose(open)); // false\nconsole.log(utils.isClose(close)); // true\n```\n\n### [.hasOpen](index.js#L633)\n\nReturns true if `node.nodes` **has** an `.open` node\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar brace = new Node({\n type: 'brace',\n nodes: []\n});\n\nvar open = new Node({type: 'brace.open'});\nconsole.log(utils.hasOpen(brace)); // false\n\nbrace.pushNode(open);\nconsole.log(utils.hasOpen(brace)); // true\n```\n\n### [.hasClose](index.js#L663)\n\nReturns true if `node.nodes` **has** a `.close` node\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar brace = new Node({\n type: 'brace',\n nodes: []\n});\n\nvar close = new Node({type: 'brace.close'});\nconsole.log(utils.hasClose(brace)); // false\n\nbrace.pushNode(close);\nconsole.log(utils.hasClose(brace)); // true\n```\n\n### [.hasOpenAndClose](index.js#L697)\n\nReturns true if `node.nodes` has both `.open` and `.close` nodes\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar brace = new Node({\n type: 'brace',\n nodes: []\n});\n\nvar open = new Node({type: 'brace.open'});\nvar close = new Node({type: 'brace.close'});\nconsole.log(utils.hasOpen(brace)); // false\nconsole.log(utils.hasClose(brace)); // false\n\nbrace.pushNode(open);\nbrace.pushNode(close);\nconsole.log(utils.hasOpen(brace)); // true\nconsole.log(utils.hasClose(brace)); // true\n```\n\n### [.addType](index.js#L719)\n\nPush the given `node` onto the `state.inside` array for the given type. This array is used as a specialized \"stack\" for only the given `node.type`.\n\n**Params**\n\n* `state` **{Object}**: The `compiler.state` object or custom state object.\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Array}**: Returns the `state.inside` stack for the given type.\n\n**Example**\n\n```js\nvar state = { inside: {}};\nvar node = new Node({type: 'brace'});\nutils.addType(state, node);\nconsole.log(state.inside);\n//=> { brace: [{type: 'brace'}] }\n```\n\n### [.removeType](index.js#L759)\n\nRemove the given `node` from the `state.inside` array for the given type. This array is used as a specialized \"stack\" for only the given `node.type`.\n\n**Params**\n\n* `state` **{Object}**: The `compiler.state` object or custom state object.\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `returns` **{Array}**: Returns the `state.inside` stack for the given type.\n\n**Example**\n\n```js\nvar state = { inside: {}};\nvar node = new Node({type: 'brace'});\nutils.addType(state, node);\nconsole.log(state.inside);\n//=> { brace: [{type: 'brace'}] }\nutils.removeType(state, node);\n//=> { brace: [] }\n```\n\n### [.isEmpty](index.js#L788)\n\nReturns true if `node.val` is an empty string, or `node.nodes` does not contain any non-empty text nodes.\n\n**Params**\n\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `fn` **{Function}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar node = new Node({type: 'text'});\nutils.isEmpty(node); //=> true\nnode.val = 'foo';\nutils.isEmpty(node); //=> false\n```\n\n### [.isInsideType](index.js#L833)\n\nReturns true if the `state.inside` stack for the given type exists and has one or more nodes on it.\n\n**Params**\n\n* `state` **{Object}**\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar state = { inside: {}};\nvar node = new Node({type: 'brace'});\nconsole.log(utils.isInsideType(state, 'brace')); //=> false\nutils.addType(state, node);\nconsole.log(utils.isInsideType(state, 'brace')); //=> true\nutils.removeType(state, node);\nconsole.log(utils.isInsideType(state, 'brace')); //=> false\n```\n\n### [.isInside](index.js#L867)\n\nReturns true if `node` is either a child or grand-child of the given `type`, or `state.inside[type]` is a non-empty array.\n\n**Params**\n\n* `state` **{Object}**: Either the `compiler.state` object, if it exists, or a user-supplied state object.\n* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node)\n* `type` **{String}**: The `node.type` to check for.\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar state = { inside: {}};\nvar node = new Node({type: 'brace'});\nvar open = new Node({type: 'brace.open'});\nconsole.log(utils.isInside(state, open, 'brace')); //=> false\nutils.pushNode(node, open);\nconsole.log(utils.isInside(state, open, 'brace')); //=> true\n```\n\n### [.last](index.js#L915)\n\nGet the last `n` element from the given `array`. Used for getting\na node from `node.nodes.`\n\n**Params**\n\n* `array` **{Array}**\n* `n` **{Number}**\n* `returns` **{undefined}**\n\n### [.arrayify](index.js#L935)\n\nCast the given `val` to an array.\n\n**Params**\n\n* `val` **{any}**\n* `returns` **{Array}**\n\n**Example**\n\n```js\nconsole.log(utils.arraify(''));\n//=> []\nconsole.log(utils.arraify('foo'));\n//=> ['foo']\nconsole.log(utils.arraify(['foo']));\n//=> ['foo']\n```\n\n### [.stringify](index.js#L948)\n\nConvert the given `val` to a string by joining with `,`. Useful\nfor creating a cheerio/CSS/DOM-style selector from a list of strings.\n\n**Params**\n\n* `val` **{any}**\n* `returns` **{Array}**\n\n### [.trim](index.js#L961)\n\nEnsure that the given value is a string and call `.trim()` on it,\nor return an empty string.\n\n**Params**\n\n* `str` **{String}**\n* `returns` **{String}**\n\n## Release history\n\nChangelog entries are classified using the following labels from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog):\n\n* `added`: for new features\n* `changed`: for changes in existing functionality\n* `deprecated`: for once-stable features removed in upcoming releases\n* `removed`: for deprecated features removed in this release\n* `fixed`: for any bug fixes\n\nCustom labels used in this changelog:\n\n* `dependencies`: bumps dependencies\n* `housekeeping`: code re-organization, minor edits, or other changes that don't fit in one of the other categories.\n\n### [3.0.0] - 2017-05-01\n\n**Changed**\n\n* `.emit` was renamed to [.append](#append)\n* `.addNode` was renamed to [.pushNode](#pushNode)\n* `.getNode` was renamed to [.findNode](#findNode)\n* `.isEmptyNodes` was renamed to [.isEmpty](#isEmpty): also now works with `node.nodes` and/or `node.val`\n\n**Added**\n\n* [.identity](#identity)\n* [.removeNode](#removeNode)\n* [.shiftNode](#shiftNode)\n* [.popNode](#popNode)\n\n### [0.1.0]\n\nFirst release.\n\n## About\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 01, 2017._\n## Pure JS character encoding conversion [](https://travis-ci.org/ashtuchkin/iconv-lite)\n\n * Doesn't need native code compilation. Works on Windows and in sandboxed environments like [Cloud9](http://c9.io).\n * Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser), \n [Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.\n * Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).\n * Intuitive encode/decode API\n * Streaming support for Node v0.10+\n * [Deprecated] Can extend Node.js primitives (buffers, streams) to support all iconv-lite encodings.\n * In-browser usage via [Browserify](https://github.com/substack/node-browserify) (~180k gzip compressed with Buffer shim included).\n * Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.\n * React Native is supported (need to explicitly `npm install` two more modules: `buffer` and `stream`).\n * License: MIT.\n\n[](https://npmjs.org/packages/iconv-lite/)\n\n## Usage\n### Basic API\n```javascript\nvar iconv = require('iconv-lite');\n\n// Convert from an encoded buffer to js string.\nstr = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');\n\n// Convert from js string to an encoded buffer.\nbuf = iconv.encode(\"Sample input string\", 'win1251');\n\n// Check if encoding is supported\niconv.encodingExists(\"us-ascii\")\n```\n\n### Streaming API (Node v0.10+)\n```javascript\n\n// Decode stream (from binary stream to js strings)\nhttp.createServer(function(req, res) {\n var converterStream = iconv.decodeStream('win1251');\n req.pipe(converterStream);\n\n converterStream.on('data', function(str) {\n console.log(str); // Do something with decoded strings, chunk-by-chunk.\n });\n});\n\n// Convert encoding streaming example\nfs.createReadStream('file-in-win1251.txt')\n .pipe(iconv.decodeStream('win1251'))\n .pipe(iconv.encodeStream('ucs2'))\n .pipe(fs.createWriteStream('file-in-ucs2.txt'));\n\n// Sugar: all encode/decode streams have .collect(cb) method to accumulate data.\nhttp.createServer(function(req, res) {\n req.pipe(iconv.decodeStream('win1251')).collect(function(err, body) {\n assert(typeof body == 'string');\n console.log(body); // full request body string\n });\n});\n```\n\n### [Deprecated] Extend Node.js own encodings\n> NOTE: This doesn't work on latest Node versions. See [details](https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility).\n\n```javascript\n// After this call all Node basic primitives will understand iconv-lite encodings.\niconv.extendNodeEncodings();\n\n// Examples:\nbuf = new Buffer(str, 'win1251');\nbuf.write(str, 'gbk');\nstr = buf.toString('latin1');\nassert(Buffer.isEncoding('iso-8859-15'));\nBuffer.byteLength(str, 'us-ascii');\n\nhttp.createServer(function(req, res) {\n req.setEncoding('big5');\n req.collect(function(err, body) {\n console.log(body);\n });\n});\n\nfs.createReadStream(\"file.txt\", \"shift_jis\");\n\n// External modules are also supported (if they use Node primitives, which they probably do).\nrequest = require('request');\nrequest({\n url: \"http://github.com/\", \n encoding: \"cp932\"\n});\n\n// To remove extensions\niconv.undoExtendNodeEncodings();\n```\n\n## Supported encodings\n\n * All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.\n * Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap.\n * All widespread singlebyte encodings: Windows 125x family, ISO-8859 family, \n IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library. \n Aliases like 'latin1', 'us-ascii' also supported.\n * All widespread multibyte encodings: CP932, CP936, CP949, CP950, GB2312, GBK, GB18030, Big5, Shift_JIS, EUC-JP.\n\nSee [all supported encodings on wiki](https://github.com/ashtuchkin/iconv-lite/wiki/Supported-Encodings).\n\nMost singlebyte encodings are generated automatically from [node-iconv](https://github.com/bnoordhuis/node-iconv). Thank you Ben Noordhuis and libiconv authors!\n\nMultibyte encodings are generated from [Unicode.org mappings](http://www.unicode.org/Public/MAPPINGS/) and [WHATWG Encoding Standard mappings](http://encoding.spec.whatwg.org/). Thank you, respective authors!\n\n## Encoding/decoding speed\n\nComparison with node-iconv module (1000x256kb, on MacBook Pro, Core i5/2.6 GHz, Node v0.12.0). \nNote: your results may vary, so please always check on your hardware.\n\n operation iconv@2.1.4 iconv-lite@0.4.7\n ----------------------------------------------------------\n encode('win1251') ~96 Mb/s ~320 Mb/s\n decode('win1251') ~95 Mb/s ~246 Mb/s\n\n## BOM handling\n\n * Decoding: BOM is stripped by default, unless overridden by passing `stripBOM: false` in options\n (f.ex. `iconv.decode(buf, enc, {stripBOM: false})`).\n A callback might also be given as a `stripBOM` parameter - it'll be called if BOM character was actually found.\n * If you want to detect UTF-8 BOM when decoding other encodings, use [node-autodetect-decoder-stream](https://github.com/danielgindi/node-autodetect-decoder-stream) module.\n * Encoding: No BOM added, unless overridden by `addBOM: true` option.\n\n## UTF-16 Encodings\n\nThis library supports UTF-16LE, UTF-16BE and UTF-16 encodings. First two are straightforward, but UTF-16 is trying to be\nsmart about endianness in the following ways:\n * Decoding: uses BOM and 'spaces heuristic' to determine input endianness. Default is UTF-16LE, but can be \n overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.\n * Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.\n\n## Other notes\n\nWhen decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding). \nUntranslatable characters are set to � or ?. No transliteration is currently supported. \nNode versions 0.10.31 and 0.11.13 are buggy, don't use them (see #65, #77). \n\n## Testing\n\n```bash\n$ git clone git@github.com:ashtuchkin/iconv-lite.git\n$ cd iconv-lite\n$ npm install\n$ npm test\n \n$ # To view performance:\n$ node test/performance.js\n\n$ # To view test coverage:\n$ npm run coverage\n$ open coverage/lcov-report/index.html\n```\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Install\n\n```bash\nnpm install --save semver\n````\n\n## Usage\n\nAs a node module:\n\n```js\nconst semver = require('semver')\n\nsemver.valid('1.2.3') // '1.2.3'\nsemver.valid('a.b.c') // null\nsemver.clean(' =v1.2.3 ') // '1.2.3'\nsemver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\nsemver.gt('1.2.3', '9.8.7') // false\nsemver.lt('1.2.3', '9.8.7') // true\nsemver.minVersion('>=1.0.0') // '1.0.0'\nsemver.valid(semver.coerce('v2')) // '2.0.0'\nsemver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'\n```\n\nAs a command-line utility:\n\n```\n$ semver -h\n\nA JavaScript implementation of the https://semver.org/ specification\nCopyright Isaac Z. Schlueter\n\nUsage: semver [options] <version> [<version> [...]]\nPrints valid versions sorted by SemVer precedence\n\nOptions:\n-r --range <range>\n Print versions that match the specified range.\n\n-i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n--preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n-l --loose\n Interpret versions and ranges loosely\n\n-p --include-prerelease\n Always include prerelease versions in range matching\n\n-c --coerce\n Coerce a string into SemVer if possible\n (does not imply --loose)\n\nProgram exits successfully if any valid version satisfies\nall supplied ranges, and prints all satisfying versions.\n\nIf no satisfying versions are found, then exits failure.\n\nVersions are printed in ascending order, so supplying\nmultiple versions to the utility will just sort them.\n```\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<https://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\nNote that this behavior can be suppressed (treating all prerelease\nversions as if they were normal versions, for the purpose of range\nmatching) by setting the `includePrerelease` flag on the options\nobject to any\n[functions](https://github.com/npm/node-semver#functions) that do\nrange matching.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\nsemver.inc('1.2.3', 'prerelease', 'beta')\n// '1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```bash\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```bash\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any version satisfies)\n* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero digit in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0`\n* `^0.2.3` := `>=0.2.3 <0.3.0`\n* `^0.0.3` := `>=0.0.3 <0.0.4`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0`\n* `^0.0.x` := `>=0.0.0 <0.1.0`\n* `^0.0` := `>=0.0.0 <0.1.0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0`\n* `^0.x` := `>=0.0.0 <1.0.0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `options` object argument. All\noptions in this object are `false` by default. The options supported\nare:\n\n- `loose` Be more forgiving about not-quite-valid semver strings.\n (Any resulting output will always be 100% strict compliant, of\n course.) For backwards compatibility reasons, if the `options`\n argument is a boolean value instead of an object, it is interpreted\n to be the `loose` param.\n- `includePrerelease` Set to suppress the [default\n behavior](https://github.com/npm/node-semver#prerelease-tags) of\n excluding prerelease tagged versions from ranges unless they are\n explicitly opted into.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n* `intersects(r1, r2, loose)`: Return true if the two supplied ranges\n or comparators intersect.\n* `parse(v)`: Attempt to parse a string as a semantic version, returning either\n a `SemVer` object or `null`.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Comparators\n\n* `intersects(comparator)`: Return true if the comparators intersect\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minVersion(range)`: Return the lowest version that can possibly match\n the given range.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n* `intersects(range)`: Return true if any of the ranges comparators intersect\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n\n### Coercion\n\n* `coerce(version)`: Coerces a string to semver if possible\n\nThis aims to provide a very forgiving translation of a non-semver\nstring to semver. It looks for the first digit in a string, and\nconsumes all remaining characters which satisfy at least a partial semver\n(e.g., `1`, `1.2`, `1.2.3`) up to the max permitted length (256 characters).\nLonger versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).\nAll surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes `3.4.0`).\nOnly text which lacks digits will fail coercion (`version one` is not valid).\nThe maximum length for any semver component considered for coercion is 16 characters;\nlonger components will be ignored (`10000000000000000.4.7.4` becomes `4.7.4`).\nThe maximum value for any semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`;\nhigher value components are invalid (`9999999999999999.4.7.4` is likely invalid).\n# cookie\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nBasic HTTP cookie parser and serializer for HTTP servers.\n\n## Installation\n\n```sh\n$ npm install cookie\n```\n\n## API\n\n```js\nvar cookie = require('cookie');\n```\n\n### cookie.parse(str, options)\n\nParse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs.\nThe `str` argument is the string representing a `Cookie` header value and `options` is an\noptional object containing additional parsing options.\n\n```js\nvar cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2');\n// { foo: 'bar', equation: 'E=mc^2' }\n```\n\n#### Options\n\n`cookie.parse` accepts these properties in the options object.\n\n##### decode\n\nSpecifies a function that will be used to decode a cookie's value. Since the value of a cookie\nhas a limited character set (and must be a simple string), this function can be used to decode\na previously-encoded cookie value into a JavaScript string or other object.\n\nThe default function is the global `decodeURIComponent`, which will decode any URL-encoded\nsequences into their byte representations.\n\n**note** if an error is thrown from this function, the original, non-decoded cookie value will\nbe returned as the cookie's value.\n\n### cookie.serialize(name, value, options)\n\nSerialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the\nname for the cookie, the `value` argument is the value to set the cookie to, and the `options`\nargument is an optional object containing additional serialization options.\n\n```js\nvar setCookie = cookie.serialize('foo', 'bar');\n// foo=bar\n```\n\n#### Options\n\n`cookie.serialize` accepts these properties in the options object.\n\n##### domain\n\nSpecifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6266-5.2.3]. By default, no\ndomain is set, and most clients will consider the cookie to apply to only the current domain.\n\n##### encode\n\nSpecifies a function that will be used to encode a cookie's value. Since value of a cookie\nhas a limited character set (and must be a simple string), this function can be used to encode\na value into a string suited for a cookie's value.\n\nThe default function is the global `ecodeURIComponent`, which will encode a JavaScript string\ninto UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range.\n\n##### expires\n\nSpecifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6266-5.2.1].\nBy default, no expiration is set, and most clients will consider this a \"non-persistent cookie\" and\nwill delete it on a condition like exiting a web browser application.\n\n**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and\n`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,\nso if both are set, they should point to the same date and time.\n\n##### httpOnly\n\nSpecifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6266-5.2.6]. When truthy,\nthe `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set.\n\n**note** be careful when setting this to `true`, as compliant clients will not allow client-side\nJavaScript to see the cookie in `document.cookie`.\n\n##### maxAge\n\nSpecifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6266-5.2.2].\nThe given number will be converted to an integer by rounding down. By default, no maximum age is set.\n\n**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and\n`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,\nso if both are set, they should point to the same date and time.\n\n##### path\n\nSpecifies the value for the [`Path` `Set-Cookie` attribute][rfc-6266-5.2.4]. By default, the path\nis considered the [\"default path\"][rfc-6266-5.1.4]. By default, no maximum age is set, and most\nclients will consider this a \"non-persistent cookie\" and will delete it on a condition like exiting\na web browser application.\n\n##### sameSite\n\nSpecifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][draft-west-first-party-cookies-07].\n\n - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.\n - `false` will not set the `SameSite` attribute.\n - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.\n - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.\n\nMore information about the different enforcement levels can be found in the specification\nhttps://tools.ietf.org/html/draft-west-first-party-cookies-07#section-4.1.1\n\n**note** This is an attribute that has not yet been fully standardized, and may change in the future.\nThis also means many clients may ignore this attribute until they understand it.\n\n##### secure\n\nSpecifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6266-5.2.5]. When truthy,\nthe `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set.\n\n**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to\nthe server in the future if the browser does not have an HTTPS connection.\n\n## Example\n\nThe following example uses this module in conjunction with the Node.js core HTTP server\nto prompt a user for their name and display it back on future visits.\n\n```js\nvar cookie = require('cookie');\nvar escapeHtml = require('escape-html');\nvar http = require('http');\nvar url = require('url');\n\nfunction onRequest(req, res) {\n // Parse the query string\n var query = url.parse(req.url, true, true).query;\n\n if (query && query.name) {\n // Set a new cookie with the name\n res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), {\n httpOnly: true,\n maxAge: 60 * 60 * 24 * 7 // 1 week\n }));\n\n // Redirect back after setting cookie\n res.statusCode = 302;\n res.setHeader('Location', req.headers.referer || '/');\n res.end();\n return;\n }\n\n // Parse the cookies on the request\n var cookies = cookie.parse(req.headers.cookie || '');\n\n // Get the visitor name set in the cookie\n var name = cookies.name;\n\n res.setHeader('Content-Type', 'text/html; charset=UTF-8');\n\n if (name) {\n res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>');\n } else {\n res.write('<p>Hello, new visitor!</p>');\n }\n\n res.write('<form method=\"GET\">');\n res.write('<input placeholder=\"enter your name\" name=\"name\"> <input type=\"submit\" value=\"Set Name\">');\n res.end('</form');\n}\n\nhttp.createServer(onRequest).listen(3000);\n```\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## References\n\n- [RFC 6266: HTTP State Management Mechanism][rfc-6266]\n- [Same-site Cookies][draft-west-first-party-cookies-07]\n\n[draft-west-first-party-cookies-07]: https://tools.ietf.org/html/draft-west-first-party-cookies-07\n[rfc-6266]: https://tools.ietf.org/html/rfc6266\n[rfc-6266-5.1.4]: https://tools.ietf.org/html/rfc6266#section-5.1.4\n[rfc-6266-5.2.1]: https://tools.ietf.org/html/rfc6266#section-5.2.1\n[rfc-6266-5.2.2]: https://tools.ietf.org/html/rfc6266#section-5.2.2\n[rfc-6266-5.2.3]: https://tools.ietf.org/html/rfc6266#section-5.2.3\n[rfc-6266-5.2.4]: https://tools.ietf.org/html/rfc6266#section-5.2.4\n[rfc-6266-5.3]: https://tools.ietf.org/html/rfc6266#section-5.3\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/cookie.svg\n[npm-url]: https://npmjs.org/package/cookie\n[node-version-image]: https://img.shields.io/node/v/cookie.svg\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/jshttp/cookie/master.svg\n[travis-url]: https://travis-ci.org/jshttp/cookie\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/cookie/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/cookie.svg\n[downloads-url]: https://npmjs.org/package/cookie\n# yallist\n\nYet Another Linked List\n\nThere are many doubly-linked list implementations like it, but this\none is mine.\n\nFor when an array would be too big, and a Map can't be iterated in\nreverse order.\n\n[](https://travis-ci.org/isaacs/yallist) [](https://coveralls.io/github/isaacs/yallist)\n\n## basic usage\n\n```javascript\nvar yallist = require('yallist')\nvar myList = yallist.create([1, 2, 3])\nmyList.push('foo')\nmyList.unshift('bar')\n// of course pop() and shift() are there, too\nconsole.log(myList.toArray()) // ['bar', 1, 2, 3, 'foo']\nmyList.forEach(function (k) {\n // walk the list head to tail\n})\nmyList.forEachReverse(function (k, index, list) {\n // walk the list tail to head\n})\nvar myDoubledList = myList.map(function (k) {\n return k + k\n})\n// now myDoubledList contains ['barbar', 2, 4, 6, 'foofoo']\n// mapReverse is also a thing\nvar myDoubledListReverse = myList.mapReverse(function (k) {\n return k + k\n}) // ['foofoo', 6, 4, 2, 'barbar']\n\nvar reduced = myList.reduce(function (set, entry) {\n set += entry\n return set\n}, 'start')\nconsole.log(reduced) // 'startfoo123bar'\n```\n\n## api\n\nThe whole API is considered \"public\".\n\nFunctions with the same name as an Array method work more or less the\nsame way.\n\nThere's reverse versions of most things because that's the point.\n\n### Yallist\n\nDefault export, the class that holds and manages a list.\n\nCall it with either a forEach-able (like an array) or a set of\narguments, to initialize the list.\n\nThe Array-ish methods all act like you'd expect. No magic length,\nthough, so if you change that it won't automatically prune or add\nempty spots.\n\n### Yallist.create(..)\n\nAlias for Yallist function. Some people like factories.\n\n#### yallist.head\n\nThe first node in the list\n\n#### yallist.tail\n\nThe last node in the list\n\n#### yallist.length\n\nThe number of nodes in the list. (Change this at your peril. It is\nnot magic like Array length.)\n\n#### yallist.toArray()\n\nConvert the list to an array.\n\n#### yallist.forEach(fn, [thisp])\n\nCall a function on each item in the list.\n\n#### yallist.forEachReverse(fn, [thisp])\n\nCall a function on each item in the list, in reverse order.\n\n#### yallist.get(n)\n\nGet the data at position `n` in the list. If you use this a lot,\nprobably better off just using an Array.\n\n#### yallist.getReverse(n)\n\nGet the data at position `n`, counting from the tail.\n\n#### yallist.map(fn, thisp)\n\nCreate a new Yallist with the result of calling the function on each\nitem.\n\n#### yallist.mapReverse(fn, thisp)\n\nSame as `map`, but in reverse.\n\n#### yallist.pop()\n\nGet the data from the list tail, and remove the tail from the list.\n\n#### yallist.push(item, ...)\n\nInsert one or more items to the tail of the list.\n\n#### yallist.reduce(fn, initialValue)\n\nLike Array.reduce.\n\n#### yallist.reduceReverse\n\nLike Array.reduce, but in reverse.\n\n#### yallist.reverse\n\nReverse the list in place.\n\n#### yallist.shift()\n\nGet the data from the list head, and remove the head from the list.\n\n#### yallist.slice([from], [to])\n\nJust like Array.slice, but returns a new Yallist.\n\n#### yallist.sliceReverse([from], [to])\n\nJust like yallist.slice, but the result is returned in reverse.\n\n#### yallist.toArray()\n\nCreate an array representation of the list.\n\n#### yallist.toArrayReverse()\n\nCreate a reversed array representation of the list.\n\n#### yallist.unshift(item, ...)\n\nInsert one or more items to the head of the list.\n\n#### yallist.unshiftNode(node)\n\nMove a Node object to the front of the list. (That is, pull it out of\nwherever it lives, and make it the new head.)\n\nIf the node belongs to a different list, then that list will remove it\nfirst.\n\n#### yallist.pushNode(node)\n\nMove a Node object to the end of the list. (That is, pull it out of\nwherever it lives, and make it the new tail.)\n\nIf the node belongs to a list already, then that list will remove it\nfirst.\n\n#### yallist.removeNode(node)\n\nRemove a node from the list, preserving referential integrity of head\nand tail and other nodes.\n\nWill throw an error if you try to have a list remove a node that\ndoesn't belong to it.\n\n### Yallist.Node\n\nThe class that holds the data and is actually the list.\n\nCall with `var n = new Node(value, previousNode, nextNode)`\n\nNote that if you do direct operations on Nodes themselves, it's very\neasy to get into weird states where the list is broken. Be careful :)\n\n#### node.next\n\nThe next node in the list.\n\n#### node.prev\n\nThe previous node in the list.\n\n#### node.value\n\nThe data the node contains.\n\n#### node.list\n\nThe list to which this node belongs. (Null if it does not belong to\nany list.)\n# private [](https://travis-ci.org/benjamn/private) [](https://greenkeeper.io/)\n\nA general-purpose utility for associating truly private state with any JavaScript object.\n\nInstallation\n---\n\nFrom NPM:\n\n npm install private\n\nFrom GitHub:\n\n cd path/to/node_modules\n git clone git://github.com/benjamn/private.git\n cd private\n npm install .\n\nUsage\n---\n**Get or create a secret object associated with any (non-frozen) object:**\n```js\nvar getSecret = require(\"private\").makeAccessor();\nvar obj = Object.create(null); // any kind of object works\ngetSecret(obj).totallySafeProperty = \"p455w0rd\";\n\nconsole.log(Object.keys(obj)); // []\nconsole.log(Object.getOwnPropertyNames(obj)); // []\nconsole.log(getSecret(obj)); // { totallySafeProperty: \"p455w0rd\" }\n```\nNow, only code that has a reference to both `getSecret` and `obj` can possibly access `.totallySafeProperty`.\n\n*Importantly, no global references to the secret object are retained by the `private` package, so as soon as `obj` gets garbage collected, the secret will be reclaimed as well. In other words, you don't have to worry about memory leaks.*\n\n**Create a unique property name that cannot be enumerated or guessed:**\n```js\nvar secretKey = require(\"private\").makeUniqueKey();\nvar obj = Object.create(null); // any kind of object works\n\nObject.defineProperty(obj, secretKey, {\n value: { totallySafeProperty: \"p455w0rd\" },\n enumerable: false // optional; non-enumerability is the default\n});\n\nObject.defineProperty(obj, \"nonEnumerableProperty\", {\n value: \"anyone can guess my name\",\n enumerable: false\n});\n\nconsole.log(obj[secretKey].totallySafeProperty); // p455w0rd\nconsole.log(obj.nonEnumerableProperty); // \"anyone can guess my name\"\nconsole.log(Object.keys(obj)); // []\nconsole.log(Object.getOwnPropertyNames(obj)); // [\"nonEnumerableProperty\"]\n\nfor (var key in obj) {\n console.log(key); // never called\n}\n```\nBecause these keys are non-enumerable, you can't discover them using a `for`-`in` loop. Because `secretKey` is a long string of random characters, you would have a lot of trouble guessing it. And because the `private` module wraps `Object.getOwnPropertyNames` to exclude the keys it generates, you can't even use that interface to discover it.\n\nUnless you have access to the value of the `secretKey` property name, there is no way to access the value associated with it. So your only responsibility as secret-keeper is to avoid handing out the value of `secretKey` to untrusted code.\n\nThink of this style as a home-grown version of the first style. Note, however, that it requires a full implementation of ES5's `Object.defineProperty` method in order to make any safety guarantees, whereas the first example will provide safety even in environments that do not support `Object.defineProperty`.\n\nRationale\n---\n\nIn JavaScript, the only data that are truly private are local variables\nwhose values do not *leak* from the scope in which they were defined.\n\nThis notion of *closure privacy* is powerful, and it readily provides some\nof the benefits of traditional data privacy, a la Java or C++:\n```js\nfunction MyClass(secret) {\n this.increment = function() {\n return ++secret;\n };\n}\n\nvar mc = new MyClass(3);\nconsole.log(mc.increment()); // 4\n```\nYou can learn something about `secret` by calling `.increment()`, and you\ncan increase its value by one as many times as you like, but you can never\ndecrease its value, because it is completely inaccessible except through\nthe `.increment` method. And if the `.increment` method were not\navailable, it would be as if no `secret` variable had ever been declared,\nas far as you could tell.\n\nThis style breaks down as soon as you want to inherit methods from the\nprototype of a class:\n```js\nfunction MyClass(secret) {\n this.secret = secret;\n}\n\nMyClass.prototype.increment = function() {\n return ++this.secret;\n};\n```\nThe only way to communicate between the `MyClass` constructor and the\n`.increment` method in this example is to manipulate shared properties of\n`this`. Unfortunately `this.secret` is now exposed to unlicensed\nmodification:\n```js\nvar mc = new MyClass(6);\nconsole.log(mc.increment()); // 7\nmc.secret -= Infinity;\nconsole.log(mc.increment()); // -Infinity\nmc.secret = \"Go home JavaScript, you're drunk.\";\nmc.increment(); // NaN\n```\nAnother problem with closure privacy is that it only lends itself to\nper-instance privacy, whereas the `private` keyword in most\nobject-oriented languages indicates that the data member in question is\nvisible to all instances of the same class.\n\nSuppose you have a `Node` class with a notion of parents and children:\n```js\nfunction Node() {\n var parent;\n var children = [];\n\n this.getParent = function() {\n return parent;\n };\n\n this.appendChild = function(child) {\n children.push(child);\n child.parent = this; // Can this be made to work?\n };\n}\n```\nThe desire here is to allow other `Node` objects to manipulate the value\nreturned by `.getParent()`, but otherwise disallow any modification of the\n`parent` variable. You could expose a `.setParent` function, but then\nanyone could call it, and you might as well give up on the getter/setter\npattern.\n\nThis module solves both of these problems.\n\nUsage\n---\n\nLet's revisit the `Node` example from above:\n```js\nvar p = require(\"private\").makeAccessor();\n\nfunction Node() {\n var privates = p(this);\n var children = [];\n\n this.getParent = function() {\n return privates.parent;\n };\n\n this.appendChild = function(child) {\n children.push(child);\n var cp = p(child);\n if (cp.parent)\n cp.parent.removeChild(child);\n cp.parent = this;\n return child;\n };\n}\n```\nNow, in order to access the private data of a `Node` object, you need to\nhave access to the unique `p` function that is being used here. This is\nalready an improvement over the previous example, because it allows\nrestricted access by other `Node` instances, but can it help with the\n`Node.prototype` problem too?\n\nYes it can!\n```js\nvar p = require(\"private\").makeAccessor();\n\nfunction Node() {\n p(this).children = [];\n}\n\nvar Np = Node.prototype;\n\nNp.getParent = function() {\n return p(this).parent;\n};\n\nNp.appendChild = function(child) {\n p(this).children.push(child);\n var cp = p(child);\n if (cp.parent)\n cp.parent.removeChild(child);\n cp.parent = this;\n return child;\n};\n```\nBecause `p` is in scope not only within the `Node` constructor but also\nwithin `Node` methods, we can finally avoid redefining methods every time\nthe `Node` constructor is called.\n\nNow, you might be wondering how you can restrict access to `p` so that no\nuntrusted code is able to call it. The answer is to use your favorite\nmodule pattern, be it CommonJS, AMD `define`, or even the old\nImmediately-Invoked Function Expression:\n```js\nvar Node = (function() {\n var p = require(\"private\").makeAccessor();\n\n function Node() {\n p(this).children = [];\n }\n\n var Np = Node.prototype;\n\n Np.getParent = function() {\n return p(this).parent;\n };\n\n Np.appendChild = function(child) {\n p(this).children.push(child);\n var cp = p(child);\n if (cp.parent)\n cp.parent.removeChild(child);\n cp.parent = this;\n return child;\n };\n\n return Node;\n}());\n\nvar parent = new Node;\nvar child = new Node;\nparent.appendChild(child);\nassert.strictEqual(child.getParent(), parent);\n```\nBecause this version of `p` never leaks from the enclosing function scope,\nonly `Node` objects have access to it.\n\nSo, you see, the claim I made at the beginning of this README remains\ntrue:\n\n> In JavaScript, the only data that are truly private are local variables\n> whose values do not *leak* from the scope in which they were defined.\n\nIt just so happens that closure privacy is sufficient to implement a\nprivacy model similar to that provided by other languages.\n# wrappy\n\nCallback wrapping utility\n\n## USAGE\n\n```javascript\nvar wrappy = require(\"wrappy\")\n\n// var wrapper = wrappy(wrapperFunction)\n\n// make sure a cb is called only once\n// See also: http://npm.im/once for this specific use case\nvar once = wrappy(function (cb) {\n var called = false\n return function () {\n if (called) return\n called = true\n return cb.apply(this, arguments)\n }\n})\n\nfunction printBoo () {\n console.log('boo')\n}\n// has some rando property\nprintBoo.iAmBooPrinter = true\n\nvar onlyPrintOnce = once(printBoo)\n\nonlyPrintOnce() // prints 'boo'\nonlyPrintOnce() // does nothing\n\n// random property is retained!\nassert.equal(onlyPrintOnce.iAmBooPrinter, true)\n```\n### Esrecurse [](https://travis-ci.org/estools/esrecurse)\n\nEsrecurse ([esrecurse](https://github.com/estools/esrecurse)) is\n[ECMAScript](https://www.ecma-international.org/publications/standards/Ecma-262.htm)\nrecursive traversing functionality.\n\n### Example Usage\n\nThe following code will output all variables declared at the root of a file.\n\n```javascript\nesrecurse.visit(ast, {\n XXXStatement: function (node) {\n this.visit(node.left);\n // do something...\n this.visit(node.right);\n }\n});\n```\n\nWe can use `Visitor` instance.\n\n```javascript\nvar visitor = new esrecurse.Visitor({\n XXXStatement: function (node) {\n this.visit(node.left);\n // do something...\n this.visit(node.right);\n }\n});\n\nvisitor.visit(ast);\n```\n\nWe can inherit `Visitor` instance easily.\n\n```javascript\nclass Derived extends esrecurse.Visitor {\n constructor()\n {\n super(null);\n }\n\n XXXStatement(node) {\n }\n}\n```\n\n```javascript\nfunction DerivedVisitor() {\n esrecurse.Visitor.call(/* this for constructor */ this /* visitor object automatically becomes this. */);\n}\nutil.inherits(DerivedVisitor, esrecurse.Visitor);\nDerivedVisitor.prototype.XXXStatement = function (node) {\n this.visit(node.left);\n // do something...\n this.visit(node.right);\n};\n```\n\nAnd you can invoke default visiting operation inside custom visit operation.\n\n```javascript\nfunction DerivedVisitor() {\n esrecurse.Visitor.call(/* this for constructor */ this /* visitor object automatically becomes this. */);\n}\nutil.inherits(DerivedVisitor, esrecurse.Visitor);\nDerivedVisitor.prototype.XXXStatement = function (node) {\n // do something...\n this.visitChildren(node);\n};\n```\n\nThe `childVisitorKeys` option does customize the behaviour of `this.visitChildren(node)`.\nWe can use user-defined node types.\n\n```javascript\n// This tree contains a user-defined `TestExpression` node.\nvar tree = {\n type: 'TestExpression',\n\n // This 'argument' is the property containing the other **node**.\n argument: {\n type: 'Literal',\n value: 20\n },\n\n // This 'extended' is the property not containing the other **node**.\n extended: true\n};\nesrecurse.visit(\n ast,\n {\n Literal: function (node) {\n // do something...\n }\n },\n {\n // Extending the existing traversing rules.\n childVisitorKeys: {\n // TargetNodeName: [ 'keys', 'containing', 'the', 'other', '**node**' ]\n TestExpression: ['argument']\n }\n }\n);\n```\n\nWe can use the `fallback` option as well.\nIf the `fallback` option is `\"iteration\"`, `esrecurse` would visit all enumerable properties of unknown nodes.\nPlease note circular references cause the stack overflow. AST might have circular references in additional properties for some purpose (e.g. `node.parent`).\n\n```javascript\nesrecurse.visit(\n ast,\n {\n Literal: function (node) {\n // do something...\n }\n },\n {\n fallback: 'iteration'\n }\n);\n```\n\nIf the `fallback` option is a function, `esrecurse` calls this function to determine the enumerable properties of unknown nodes.\nPlease note circular references cause the stack overflow. AST might have circular references in additional properties for some purpose (e.g. `node.parent`).\n\n```javascript\nesrecurse.visit(\n ast,\n {\n Literal: function (node) {\n // do something...\n }\n },\n {\n fallback: function (node) {\n return Object.keys(node).filter(function(key) {\n return key !== 'argument'\n });\n }\n }\n);\n```\n\n### License\n\nCopyright (C) 2014 [Yusuke Suzuki](https://github.com/Constellation)\n (twitter: [@Constellation](https://twitter.com/Constellation)) and other contributors.\n\nRedistribution and use in source and binary forms, with or without\nmodification, are permitted provided that the following conditions are met:\n\n * Redistributions of source code must retain the above copyright\n notice, this list of conditions and the following disclaimer.\n\n * Redistributions in binary form must reproduce the above copyright\n notice, this list of conditions and the following disclaimer in the\n documentation and/or other materials provided with the distribution.\n\nTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\nAND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\nIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\nARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY\nDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\nLOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\nON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\nTHIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n# tslib\n\nThis is a runtime library for [TypeScript](http://www.typescriptlang.org/) that contains all of the TypeScript helper functions.\n\nThis library is primarily used by the `--importHelpers` flag in TypeScript.\nWhen using `--importHelpers`, a module that uses helper functions like `__extends` and `__assign` in the following emitted file:\n\n```ts\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n};\nexports.x = {};\nexports.y = __assign({}, exports.x);\n\n```\n\nwill instead be emitted as something like the following:\n\n```ts\nvar tslib_1 = require(\"tslib\");\nexports.x = {};\nexports.y = tslib_1.__assign({}, exports.x);\n```\n\nBecause this can avoid duplicate declarations of things like `__extends`, `__assign`, etc., this means delivering users smaller files on average, as well as less runtime overhead.\nFor optimized bundles with TypeScript, you should absolutely consider using `tslib` and `--importHelpers`.\n\n# Installing\n\nFor the latest stable version, run:\n\n## npm\n\n```sh\n# TypeScript 2.3.3 or later\nnpm install --save tslib\n\n# TypeScript 2.3.2 or earlier\nnpm install --save tslib@1.6.1\n```\n\n## bower\n\n```sh\n# TypeScript 2.3.3 or later\nbower install tslib\n\n# TypeScript 2.3.2 or earlier\nbower install tslib@1.6.1\n```\n\n## JSPM\n\n```sh\n# TypeScript 2.3.3 or later\njspm install tslib\n\n# TypeScript 2.3.2 or earlier\njspm install tslib@1.6.1\n```\n\n# Usage\n\nSet the `importHelpers` compiler option on the command line:\n\n```\ntsc --importHelpers file.ts\n```\n\nor in your tsconfig.json:\n\n```json\n{\n \"compilerOptions\": {\n \"importHelpers\": true\n }\n}\n```\n\n#### For bower and JSPM users\n\nYou will need to add a `paths` mapping for `tslib`, e.g. For Bower users:\n\n```json\n{\n \"compilerOptions\": {\n \"module\": \"amd\",\n \"importHelpers\": true,\n \"baseUrl\": \"./\",\n \"paths\": {\n \"tslib\" : [\"bower_components/tslib/tslib.d.ts\"]\n }\n }\n}\n```\n\nFor JSPM users:\n\n```json\n{\n \"compilerOptions\": {\n \"module\": \"system\",\n \"importHelpers\": true,\n \"baseUrl\": \"./\",\n \"paths\": {\n \"tslib\" : [\"jspm_packages/npm/tslib@1.9.3/tslib.d.ts\"]\n }\n }\n}\n```\n\n# Contribute\n\nThere are many ways to [contribute](https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md) to TypeScript.\n\n* [Submit bugs](https://github.com/Microsoft/TypeScript/issues) and help us verify fixes as they are checked in.\n* Review the [source code changes](https://github.com/Microsoft/TypeScript/pulls).\n* Engage with other TypeScript users and developers on [StackOverflow](http://stackoverflow.com/questions/tagged/typescript).\n* Join the [#typescript](http://twitter.com/#!/search/realtime/%23typescript) discussion on Twitter.\n* [Contribute bug fixes](https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md).\n* Read the language specification ([docx](http://go.microsoft.com/fwlink/?LinkId=267121), [pdf](http://go.microsoft.com/fwlink/?LinkId=267238)).\n\n# Documentation\n\n* [Quick tutorial](http://www.typescriptlang.org/Tutorial)\n* [Programming handbook](http://www.typescriptlang.org/Handbook)\n* [Language specification](https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md)\n* [Homepage](http://www.typescriptlang.org/)\n# hash.js [](http://travis-ci.org/indutny/hash.js)\n\nJust a bike-shed.\n\n## Install\n\n```sh\nnpm install hash.js\n```\n\n## Usage\n\n```js\nvar hash = require('hash.js')\nhash.sha256().update('abc').digest('hex')\n```\n\n## Selective hash usage\n\n```js\nvar sha512 = require('hash.js/lib/hash/sha/512');\nsha512().update('abc').digest('hex');\n```\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# Console Control Strings\n\nA library of cross-platform tested terminal/console command strings for\ndoing things like color and cursor positioning. This is a subset of both\nansi and vt100. All control codes included work on both Windows & Unix-like\nOSes, except where noted.\n\n## Usage\n\n```js\nvar consoleControl = require('console-control-strings')\n\nconsole.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))\nprocess.stdout.write(consoleControl.goto(75, 10))\n```\n\n## Why Another?\n\nThere are tons of libraries similar to this one. I wanted one that was:\n\n1. Very clear about compatibility goals.\n2. Could emit, for instance, a start color code without an end one.\n3. Returned strings w/o writing to streams.\n4. Was not weighed down with other unrelated baggage.\n\n## Functions\n\n### var code = consoleControl.up(_num = 1_)\n\nReturns the escape sequence to move _num_ lines up.\n\n### var code = consoleControl.down(_num = 1_)\n\nReturns the escape sequence to move _num_ lines down.\n\n### var code = consoleControl.forward(_num = 1_)\n\nReturns the escape sequence to move _num_ lines righ.\n\n### var code = consoleControl.back(_num = 1_)\n\nReturns the escape sequence to move _num_ lines left.\n\n### var code = consoleControl.nextLine(_num = 1_)\n\nReturns the escape sequence to move _num_ lines down and to the beginning of\nthe line.\n\n### var code = consoleControl.previousLine(_num = 1_)\n\nReturns the escape sequence to move _num_ lines up and to the beginning of\nthe line.\n\n### var code = consoleControl.eraseData()\n\nReturns the escape sequence to erase everything from the current cursor\nposition to the bottom right of the screen. This is line based, so it\nerases the remainder of the current line and all following lines.\n\n### var code = consoleControl.eraseLine()\n\nReturns the escape sequence to erase to the end of the current line.\n\n### var code = consoleControl.goto(_x_, _y_)\n\nReturns the escape sequence to move the cursor to the designated position. \nNote that the origin is _1, 1_ not _0, 0_.\n\n### var code = consoleControl.gotoSOL()\n\nReturns the escape sequence to move the cursor to the beginning of the\ncurrent line. (That is, it returns a carriage return, `\\r`.)\n\n### var code = consoleControl.beep()\n\nReturns the escape sequence to cause the termianl to beep. (That is, it\nreturns unicode character `\\x0007`, a Control-G.)\n\n### var code = consoleControl.hideCursor()\n\nReturns the escape sequence to hide the cursor.\n\n### var code = consoleControl.showCursor()\n\nReturns the escape sequence to show the cursor.\n\n### var code = consoleControl.color(_colors = []_)\n\n### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)\n\nReturns the escape sequence to set the current terminal display attributes\n(mostly colors). Arguments can either be a list of attributes or an array\nof attributes. The difference between passing in an array or list of colors\nand calling `.color` separately for each one, is that in the former case a\nsingle escape sequence will be produced where as in the latter each change\nwill have its own distinct escape sequence. Each attribute can be one of:\n\n* Reset:\n * **reset** – Reset all attributes to the terminal default.\n* Styles:\n * **bold** – Display text as bold. In some terminals this means using a\n bold font, in others this means changing the color. In some it means\n both.\n * **italic** – Display text as italic. This is not available in most Windows terminals.\n * **underline** – Underline text. This is not available in most Windows Terminals.\n * **inverse** – Invert the foreground and background colors.\n * **stopBold** – Do not display text as bold.\n * **stopItalic** – Do not display text as italic.\n * **stopUnderline** – Do not underline text.\n * **stopInverse** – Do not invert foreground and background.\n* Colors:\n * **white**\n * **black**\n * **blue**\n * **cyan**\n * **green**\n * **magenta**\n * **red**\n * **yellow**\n * **grey** / **brightBlack**\n * **brightRed**\n * **brightGreen**\n * **brightYellow**\n * **brightBlue**\n * **brightMagenta**\n * **brightCyan**\n * **brightWhite**\n* Background Colors:\n * **bgWhite**\n * **bgBlack**\n * **bgBlue**\n * **bgCyan**\n * **bgGreen**\n * **bgMagenta**\n * **bgRed**\n * **bgYellow**\n * **bgGrey** / **bgBrightBlack**\n * **bgBrightRed**\n * **bgBrightGreen**\n * **bgBrightYellow**\n * **bgBrightBlue**\n * **bgBrightMagenta**\n * **bgBrightCyan**\n * **bgBrightWhite**\n# performance-now [](https://travis-ci.org/braveg1rl/performance-now) [](https://david-dm.org/braveg1rl/performance-now)\n\nImplements a function similar to `performance.now` (based on `process.hrtime`).\n\nModern browsers have a `window.performance` object with - among others - a `now` method which gives time in milliseconds, but with sub-millisecond precision. This module offers the same function based on the Node.js native `process.hrtime` function.\n\nUsing `process.hrtime` means that the reported time will be monotonically increasing, and not subject to clock-drift.\n\nAccording to the [High Resolution Time specification](http://www.w3.org/TR/hr-time/), the number of milliseconds reported by `performance.now` should be relative to the value of `performance.timing.navigationStart`.\n\nIn the current version of the module (2.0) the reported time is relative to the time the current Node process has started (inferred from `process.uptime()`).\n\nVersion 1.0 reported a different time. The reported time was relative to the time the module was loaded (i.e. the time it was first `require`d). If you need this functionality, version 1.0 is still available on NPM.\n\n## Example usage\n\n```javascript\nvar now = require(\"performance-now\")\nvar start = now()\nvar end = now()\nconsole.log(start.toFixed(3)) // the number of milliseconds the current node process is running\nconsole.log((start-end).toFixed(3)) // ~ 0.002 on my system\n```\n\nRunning the now function two times right after each other yields a time difference of a few microseconds. Given this overhead, I think it's best to assume that the precision of intervals computed with this method is not higher than 10 microseconds, if you don't know the exact overhead on your own system.\n\n## License\n\nperformance-now is released under the [MIT License](http://opensource.org/licenses/MIT).\nCopyright (c) 2017 Braveg1rl\n# jsbn: javascript big number\n\n[Tom Wu's Original Website](http://www-cs-students.stanford.edu/~tjw/jsbn/)\n\nI felt compelled to put this on github and publish to npm. I haven't tested every other big integer library out there, but the few that I have tested in comparison to this one have not even come close in performance. I am aware of the `bi` module on npm, however it has been modified and I wanted to publish the original without modifications. This is jsbn and jsbn2 from Tom Wu's original website above, with the modular pattern applied to prevent global leaks and to allow for use with node.js on the server side.\n\n## usage\n\n var BigInteger = require('jsbn');\n \n var a = new BigInteger('91823918239182398123');\n alert(a.bitLength()); // 67\n\n## API\n\n### bi.toString()\n\nreturns the base-10 number as a string\n\n### bi.negate()\n\nreturns a new BigInteger equal to the negation of `bi`\n\n### bi.abs\n\nreturns new BI of absolute value\n\n### bi.compareTo\n\n### bi.bitLength\n\n### bi.mod\n\n### bi.modPowInt\n\n### bi.clone\n\n### bi.intValue\n\n### bi.byteValue\n\n### bi.shortValue\n\n### bi.signum\n\n### bi.toByteArray\n\n### bi.equals\n\n### bi.min\n\n### bi.max\n\n### bi.and\n\n### bi.or\n\n### bi.xor\n\n### bi.andNot\n\n### bi.not\n\n### bi.shiftLeft\n\n### bi.shiftRight\n\n### bi.getLowestSetBit\n\n### bi.bitCount\n\n### bi.testBit\n\n### bi.setBit\n\n### bi.clearBit\n\n### bi.flipBit\n\n### bi.add\n\n### bi.subtract\n\n### bi.multiply\n\n### bi.divide\n\n### bi.remainder\n\n### bi.divideAndRemainder\n\n### bi.modPow\n\n### bi.modInverse\n\n### bi.pow\n\n### bi.gcd\n\n### bi.isProbablePrime\n# has-values [](https://www.npmjs.com/package/has-values) [](https://npmjs.org/package/has-values) [](https://travis-ci.org/jonschlinkert/has-values)\n\n> Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install has-values --save\n```\n\n## Usage\n\n```js\nvar hasValue = require('has-values');\n\nhasValue('a');\n//=> true\n\nhasValue('');\n//=> false\n\nhasValue(1);\n//=> true\n\nhasValue(0);\n//=> false\n\nhasValue(0, true); // treat zero as a value\n//=> true\n\nhasValue({a: 'a'}});\n//=> true\n\nhasValue({}});\n//=> false\n\nhasValue(['a']);\n//=> true\n\nhasValue([]);\n//=> false\n\nhasValue(function(foo) {}); // function length/arity\n//=> true\n\nhasValue(function() {});\n//=> false\n\nhasValue(true);\nhasValue(false);\n//=> true\n```\n\n## isEmpty\n\nTo test for empty values, do:\n\n```js\nfunction isEmpty(o, isZero) {\n return !hasValue(o, isZero);\n}\n```\n\n## Related projects\n\nYou might also be interested in these projects:\n\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://www.npmjs.com/package/has-value) | [homepage](https://github.com/jonschlinkert/has-value)\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object)\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject)\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/has-values/issues/new).\n\n## Building docs\n\nGenerate readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install verb && npm run docs\n```\n\nOr, if [verb](https://github.com/verbose/verb) is installed globally:\n\n```sh\n$ verb\n```\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/has-values/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb), v, on March 27, 2016._\n# Regular Expression Tokenizer\n\nTokenizes strings that represent a regular expressions.\n\n[](http://travis-ci.org/fent/ret.js)\n[](https://david-dm.org/fent/ret.js)\n[](https://codecov.io/gh/fent/ret.js)\n\n# Usage\n\n```js\nvar ret = require('ret');\n\nvar tokens = ret(/foo|bar/.source);\n```\n\n`tokens` will contain the following object\n\n```js\n{\n \"type\": ret.types.ROOT\n \"options\": [\n [ { \"type\": ret.types.CHAR, \"value\", 102 },\n { \"type\": ret.types.CHAR, \"value\", 111 },\n { \"type\": ret.types.CHAR, \"value\", 111 } ],\n [ { \"type\": ret.types.CHAR, \"value\", 98 },\n { \"type\": ret.types.CHAR, \"value\", 97 },\n { \"type\": ret.types.CHAR, \"value\", 114 } ]\n ]\n}\n```\n\n# Token Types\n\n`ret.types` is a collection of the various token types exported by ret.\n\n### ROOT\n\nOnly used in the root of the regexp. This is needed due to the posibility of the root containing a pipe `|` character. In that case, the token will have an `options` key that will be an array of arrays of tokens. If not, it will contain a `stack` key that is an array of tokens.\n\n```js\n{\n \"type\": ret.types.ROOT,\n \"stack\": [token1, token2...],\n}\n```\n\n```js\n{\n \"type\": ret.types.ROOT,\n \"options\" [\n [token1, token2...],\n [othertoken1, othertoken2...]\n ...\n ],\n}\n```\n\n### GROUP\n\nGroups contain tokens that are inside of a parenthesis. If the group begins with `?` followed by another character, it's a special type of group. A ':' tells the group not to be remembered when `exec` is used. '=' means the previous token matches only if followed by this group, and '!' means the previous token matches only if NOT followed.\n\nLike root, it can contain an `options` key instead of `stack` if there is a pipe.\n\n```js\n{\n \"type\": ret.types.GROUP,\n \"remember\" true,\n \"followedBy\": false,\n \"notFollowedBy\": false,\n \"stack\": [token1, token2...],\n}\n```\n\n```js\n{\n \"type\": ret.types.GROUP,\n \"remember\" true,\n \"followedBy\": false,\n \"notFollowedBy\": false,\n \"options\" [\n [token1, token2...],\n [othertoken1, othertoken2...]\n ...\n ],\n}\n```\n\n### POSITION\n\n`\\b`, `\\B`, `^`, and `$` specify positions in the regexp.\n\n```js\n{\n \"type\": ret.types.POSITION,\n \"value\": \"^\",\n}\n```\n\n### SET\n\nContains a key `set` specifying what tokens are allowed and a key `not` specifying if the set should be negated. A set can contain other sets, ranges, and characters.\n\n```js\n{\n \"type\": ret.types.SET,\n \"set\": [token1, token2...],\n \"not\": false,\n}\n```\n\n### RANGE\n\nUsed in set tokens to specify a character range. `from` and `to` are character codes.\n\n```js\n{\n \"type\": ret.types.RANGE,\n \"from\": 97,\n \"to\": 122,\n}\n```\n\n### REPETITION\n\n```js\n{\n \"type\": ret.types.REPETITION,\n \"min\": 0,\n \"max\": Infinity,\n \"value\": token,\n}\n```\n\n### REFERENCE\n\nReferences a group token. `value` is 1-9.\n\n```js\n{\n \"type\": ret.types.REFERENCE,\n \"value\": 1,\n}\n```\n\n### CHAR\n\nRepresents a single character token. `value` is the character code. This might seem a bit cluttering instead of concatenating characters together. But since repetition tokens only repeat the last token and not the last clause like the pipe, it's simpler to do it this way.\n\n```js\n{\n \"type\": ret.types.CHAR,\n \"value\": 123,\n}\n```\n\n## Errors\n\nret.js will throw errors if given a string with an invalid regular expression. All possible errors are\n\n* Invalid group. When a group with an immediate `?` character is followed by an invalid character. It can only be followed by `!`, `=`, or `:`. Example: `/(?_abc)/`\n* Nothing to repeat. Thrown when a repetitional token is used as the first token in the current clause, as in right in the beginning of the regexp or group, or right after a pipe. Example: `/foo|?bar/`, `/{1,3}foo|bar/`, `/foo(+bar)/`\n* Unmatched ). A group was not opened, but was closed. Example: `/hello)2u/`\n* Unterminated group. A group was not closed. Example: `/(1(23)4/`\n* Unterminated character class. A custom character set was not closed. Example: `/[abc/`\n\n# Install\n\n npm install ret\n\n# Tests\n\nTests are written with [vows](http://vowsjs.org/)\n\n```bash\nnpm test\n```\n\n# License\n\nMIT\n[](http://badge.fury.io/js/sockjs)\n\nSockJS family:\n\n * [SockJS-client](https://github.com/sockjs/sockjs-client) JavaScript client library\n * [SockJS-node](https://github.com/sockjs/sockjs-node) Node.js server\n * [SockJS-erlang](https://github.com/sockjs/sockjs-erlang) Erlang server\n * [SockJS-tornado](https://github.com/MrJoes/sockjs-tornado) Python/Tornado server\n * [vert.x](https://github.com/eclipse/vert.x) Java/vert.x server\n\nWork in progress:\n\n * [SockJS-ruby](https://github.com/nyarly/sockjs-ruby)\n * [SockJS-netty](https://github.com/cgbystrom/sockjs-netty)\n * [SockJS-gevent](https://github.com/sdiehl/sockjs-gevent) ([and a fork](https://github.com/njoyce/sockjs-gevent))\n * [pyramid-SockJS](https://github.com/fafhrd91/pyramid_sockjs)\n * [wildcloud-websockets](https://github.com/wildcloud/wildcloud-websockets)\n * [SockJS-cyclone](https://github.com/flaviogrossi/sockjs-cyclone)\n * [SockJS-twisted](https://github.com/Fugiman/sockjs-twisted/)\n * [wai-SockJS](https://github.com/Palmik/wai-sockjs)\n * [SockJS-perl](https://github.com/vti/sockjs-perl)\n * [SockJS-go](https://github.com/igm/sockjs-go/)\n\nWhat is SockJS?\n===============\n\nSockJS is a JavaScript library (for browsers) that provides a WebSocket-like\nobject. SockJS gives you a coherent, cross-browser, Javascript API\nwhich creates a low latency, full duplex, cross-domain communication\nchannel between the browser and the web server, with WebSockets or without.\nThis necessitates the use of a server, which this is one version of, for Node.js.\n\nSockJS-node server\n==================\n\nSockJS-node is a Node.js server side counterpart of\n[SockJS-client browser library](https://github.com/sockjs/sockjs-client)\nwritten in CoffeeScript.\n\nTo install `sockjs-node` run:\n\n npm install sockjs\n\nA simplified echo SockJS server could look more or less like:\n\n```javascript\nvar http = require('http');\nvar sockjs = require('sockjs');\n\nvar echo = sockjs.createServer({ sockjs_url: 'http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js' });\necho.on('connection', function(conn) {\n conn.on('data', function(message) {\n conn.write(message);\n });\n conn.on('close', function() {});\n});\n\nvar server = http.createServer();\necho.installHandlers(server, {prefix:'/echo'});\nserver.listen(9999, '0.0.0.0');\n```\n\n(Take look at\n[examples](https://github.com/sockjs/sockjs-node/tree/master/examples/echo)\ndirectory for a complete version.)\n\nSubscribe to\n[SockJS mailing list](https://groups.google.com/forum/#!forum/sockjs) for\ndiscussions and support.\n\nSockJS-node API\n---------------\n\nThe API design is based on common Node APIs like the\n[Streams API](http://nodejs.org/docs/v0.5.8/api/streams.html) or the\n[Http.Server API](http://nodejs.org/docs/v0.5.8/api/http.html#http.Server).\n\n### Server class\n\nSockJS module is generating a `Server` class, similar to\n[Node.js http.createServer](http://nodejs.org/docs/v0.5.8/api/http.html#http.createServer)\nmodule.\n\n```javascript\nvar sockjs_server = sockjs.createServer(options);\n```\n\nWhere `options` is a hash which can contain:\n\n<dl>\n<dt>sockjs_url (string, required)</dt>\n<dd>Transports which don't support cross-domain communication natively\n ('eventsource' to name one) use an iframe trick. A simple page is\n served from the SockJS server (using its foreign domain) and is\n placed in an invisible iframe. Code run from this iframe doesn't\n need to worry about cross-domain issues, as it's being run from\n domain local to the SockJS server. This iframe also does need to\n load SockJS javascript client library, and this option lets you specify\n its url (if you're unsure, point it to\n <a href=\"http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js\">\n the latest minified SockJS client release</a>, this is the default).\n You must explicitly specify this url on the server side for security\n reasons - we don't want the possibility of running any foreign\n javascript within the SockJS domain (aka cross site scripting attack).\n Also, sockjs javascript library is probably already cached by the\n browser - it makes sense to reuse the sockjs url you're using in\n normally.</dd>\n\n<dt>prefix (string regex)</dt>\n<dd>A url prefix for the server. All http requests which paths begins\n with selected prefix will be handled by SockJS. All other requests\n will be passed through, to previously registered handlers.</dd>\n\n<dt>response_limit (integer)</dt>\n<dd>Most streaming transports save responses on the client side and\n don't free memory used by delivered messages. Such transports need\n to be garbage-collected once in a while. `response_limit` sets\n a minimum number of bytes that can be send over a single http streaming\n request before it will be closed. After that client needs to open\n new request. Setting this value to one effectively disables\n streaming and will make streaming transports to behave like polling\n transports. The default value is 128K.</dd>\n\n<dt>websocket (boolean)</dt>\n<dd>Some load balancers don't support websockets. This option can be used\n to disable websockets support by the server. By default websockets are\n enabled.</dd>\n\n<dt>jsessionid (boolean or function)</dt>\n<dd>Some hosting providers enable sticky sessions only to requests that\n have JSESSIONID cookie set. This setting controls if the server should\n set this cookie to a dummy value. By default setting JSESSIONID cookie\n is disabled. More sophisticated behaviour can be achieved by supplying\n a function.</dd>\n\n<dt>log (function(severity, message))</dt>\n<dd>It's quite useful, especially for debugging, to see some messages\n printed by a SockJS-node library. This is done using this `log`\n function, which is by default set to `console.log`. If this\n behaviour annoys you for some reason, override `log` setting with a\n custom handler. The following `severities` are used: `debug`\n (miscellaneous logs), `info` (requests logs), `error` (serious\n errors, consider filing an issue).</dd>\n\n<dt>heartbeat_delay (milliseconds)</dt>\n<dd>In order to keep proxies and load balancers from closing long\n running http requests we need to pretend that the connection is\n active and send a heartbeat packet once in a while. This setting\n controls how often this is done. By default a heartbeat packet is\n sent every 25 seconds. </dd>\n\n<dt>disconnect_delay (milliseconds)</dt>\n<dd>The server sends a `close` event when a client receiving\n connection have not been seen for a while. This delay is configured\n by this setting. By default the `close` event will be emitted when a\n receiving connection wasn't seen for 5 seconds. </dd>\n\n<dt>disable_cors (boolean)</dt>\n<dd>Enabling this option will prevent\n <a href=\"https://en.wikipedia.org/wiki/Cross-origin_resource_sharing\">CORS</a>\n headers from being included in the HTTP response. Can be used when the\n sockjs client is known to be connecting from the same origin as the \n sockjs server.</dd>\n</dl>\n\n### Server instance\n\nOnce you have create `Server` instance you can hook it to the\n[http.Server instance](http://nodejs.org/docs/v0.5.8/api/http.html#http.createServer).\n\n```javascript\nvar http_server = http.createServer();\nsockjs_server.installHandlers(http_server, options);\nhttp_server.listen(...);\n```\n\nWhere `options` can overshadow options given when creating `Server`\ninstance.\n\n`Server` instance is an\n[EventEmitter](http://nodejs.org/docs/v0.4.10/api/events.html#events.EventEmitter),\nand emits following event:\n\n<dl>\n<dt>Event: connection (connection)</dt>\n<dd>A new connection has been successfully opened.</dd>\n</dl>\n\nAll http requests that don't go under the path selected by `prefix`\nwill remain unanswered and will be passed to previously registered\nhandlers. You must install your custom http handlers before calling\n`installHandlers`.\n\n### Connection instance\n\nA `Connection` instance supports\n[Node Stream API](http://nodejs.org/docs/v0.5.8/api/streams.html) and\nhas following methods and properties:\n\n<dl>\n<dt>Property: readable (boolean)</dt>\n<dd>Is the stream readable?</dd>\n\n<dt>Property: writable (boolean)</dt>\n<dd>Is the stream writable?</dd>\n\n<dt>Property: remoteAddress (string)</dt>\n<dd>Last known IP address of the client.</dd>\n\n<dt>Property: remotePort (number)</dt>\n<dd>Last known port number of the client.</dd>\n\n<dt>Property: address (object)</dt>\n<dd>Hash with 'address' and 'port' fields.</dd>\n\n<dt>Property: headers (object)</dt>\n<dd>Hash containing various headers copied from last receiving request\n on that connection. Exposed headers include: `origin`, `referer`\n and `x-forwarded-for` (and friends). We explicitly do not grant\n access to `cookie` header, as using it may easily lead to security\n issues (for details read the section \"Authorisation\").</dd>\n\n<dt>Property: url (string)</dt>\n<dd><a href=\"http://nodejs.org/docs/v0.4.10/api/http.html#request.url\">Url</a>\n property copied from last request.</dd>\n\n<dt>Property: pathname (string)</dt>\n<dd>`pathname` from parsed url, for convenience.</dd>\n\n<dt>Property: prefix (string)</dt>\n<dd>Prefix of the url on which the request was handled.</dd>\n\n<dt>Property: protocol (string)</dt>\n<dd>Protocol used by the connection. Keep in mind that some protocols\n are indistinguishable - for example \"xhr-polling\" and \"xdr-polling\".</dd>\n\n<dt>Property: readyState (integer)</dt>\n<dd>Current state of the connection:\n 0-connecting, 1-open, 2-closing, 3-closed.</dd>\n\n<dt>write(message)</dt>\n<dd>Sends a message over opened connection. A message must be a\n non-empty string. It's illegal to send a message after the connection was\n closed (either after 'close' or 'end' method or 'close' event).</dd>\n\n<dt>close([code], [reason])</dt>\n<dd>Asks the remote client to disconnect. 'code' and 'reason'\n parameters are optional and can be used to share the reason of\n disconnection.</dd>\n\n<dt>end()</dt>\n<dd>Asks the remote client to disconnect with default 'code' and\n 'reason' values.</dd>\n\n</dl>\n\nA `Connection` instance emits the following events:\n\n<dl>\n<dt>Event: data (message)</dt>\n<dd>A message arrived on the connection. Message is a unicode\n string.</dd>\n\n<dt>Event: close ()</dt>\n<dd>Connection was closed. This event is triggered exactly once for\n every connection.</dd>\n</dl>\n\nFor example:\n\n```javascript\nsockjs_server.on('connection', function(conn) {\n console.log('connection' + conn);\n conn.on('close', function() {\n console.log('close ' + conn);\n });\n conn.on('data', function(message) {\n console.log('message ' + conn,\n message);\n });\n});\n```\n\n### Footnote\n\nA fully working echo server does need a bit more boilerplate (to\nhandle requests unanswered by SockJS), see the\n[`echo` example](https://github.com/sockjs/sockjs-node/tree/master/examples/echo)\nfor a complete code.\n\n### Examples\n\nIf you want to see samples of running code, take a look at:\n\n * [./examples/echo](https://github.com/sockjs/sockjs-node/tree/master/examples/echo)\n directory, which contains a full example of a echo server.\n * [./examples/test_server](https://github.com/sockjs/sockjs-node/tree/master/examples/test_server) a standard SockJS test server.\n\nConnecting to SockJS-node without the client\n--------------------------------------------\n\nAlthough the main point of SockJS it to enable browser-to-server\nconnectivity, it is possible to connect to SockJS from an external\napplication. Any SockJS server complying with 0.3 protocol does\nsupport a raw WebSocket url. The raw WebSocket url for the test server\nlooks like:\n\n * ws://localhost:8081/echo/websocket\n\nYou can connect any WebSocket RFC 6455 compliant WebSocket client to\nthis url. This can be a command line client, external application,\nthird party code or even a browser (though I don't know why you would\nwant to do so).\n\nNote: This endpoint will *not send any heartbeat packets*.\n\nDeployment and load balancing\n-----------------------------\n\nThere are two issues that need to be considered when planning a\nnon-trivial SockJS-node deployment: WebSocket-compatible load balancer\nand sticky sessions (aka session affinity).\n\n### WebSocket compatible load balancer\n\nOften WebSockets don't play nicely with proxies and load balancers.\nDeploying a SockJS server behind Nginx or Apache could be painful.\n\nFortunately recent versions of an excellent load balancer\n[HAProxy](http://haproxy.1wt.eu/) are able to proxy WebSocket\nconnections. We propose to put HAProxy as a front line load balancer\nand use it to split SockJS traffic from normal HTTP data. Take a look\nat the sample\n[SockJS HAProxy configuration](https://github.com/sockjs/sockjs-node/blob/master/examples/haproxy.cfg).\n\nThe config also shows how to use HAproxy balancing to split traffic\nbetween multiple Node.js servers. You can also do balancing using dns\nnames.\n\n### Sticky sessions\n\nIf you plan deploying more than one SockJS server, you must make sure\nthat all HTTP requests for a single session will hit the same server.\nSockJS has two mechanisms that can be useful to achieve that:\n\n * Urls are prefixed with server and session id numbers, like:\n `/resource/<server_number>/<session_id>/transport`. This is\n useful for load balancers that support prefix-based affinity\n (HAProxy does).\n * `JSESSIONID` cookie is being set by SockJS-node. Many load\n balancers turn on sticky sessions if that cookie is set. This\n technique is derived from Java applications, where sticky sessions\n are often necessary. HAProxy does support this method, as well as\n some hosting providers, for example CloudFoundry. In order to\n enable this method on the client side, please supply a\n `cookie:true` option to SockJS constructor.\n\nDevelopment and testing\n-----------------------\n\nIf you want to work on SockJS-node source code, you need to clone the\ngit repo and follow these steps. First you need to install\ndependencies:\n\n cd sockjs-node\n npm install\n npm install --dev\n ln -s .. node_modules/sockjs\n\nYou're ready to compile CoffeeScript:\n\n make build\n\nIf compilation succeeds you may want to test if your changes pass all\nthe tests. Currently, there are two separate test suites. For both of\nthem you need to start a SockJS-node test server (by default listening\non port 8081):\n\n make test_server\n\n### SockJS-protocol Python tests\n\nTo run it run something like:\n\n cd sockjs-protocol\n make test_deps\n ./venv/bin/python sockjs-protocol.py\n\nFor details see\n[SockJS-protocol README](https://github.com/sockjs/sockjs-protocol#readme).\n\n### SockJS-client QUnit tests\n\nYou need to start a second web server (by default listening on 8080)\nthat is serving various static html and javascript files:\n\n cd sockjs-client\n make test\n\nAt that point you should have two web servers running: sockjs-node on\n8081 and sockjs-client on 8080. When you open the browser on\n[http://localhost:8080/](http://localhost:8080/) you should be able\nrun the QUnit tests against your sockjs-node server.\n\nFor details see\n[SockJS-client README](https://github.com/sockjs/sockjs-client#readme).\n\nAdditionally, if you're doing more serious development consider using\n`make serve`, which will automatically the server when you modify the\nsource code.\n\nVarious issues and design considerations\n----------------------------------------\n\n### Authorisation\n\nSockJS-node does not expose cookies to the application. This is done\ndeliberately as using cookie-based authorisation with SockJS simply\ndoesn't make sense and will lead to security issues.\n\nCookies are a contract between a browser and an http server, and are\nidentified by a domain name. If a browser has a cookie set for\nparticular domain, it will pass it as a part of all http requests to\nthe host. But to get various transports working, SockJS uses a middleman\n- an iframe hosted from target SockJS domain. That means the server\nwill receive requests from the iframe, and not from the real\ndomain. The domain of an iframe is the same as the SockJS domain. The\nproblem is that any website can embed the iframe and communicate with\nit - and request establishing SockJS connection. Using cookies for\nauthorisation in this scenario will result in granting full access to\nSockJS communication with your website from any website. This is a\nclassic CSRF attack.\n\nBasically - cookies are not suited for SockJS model. If you want to\nauthorise a session - provide a unique token on a page, send it as a\nfirst thing over SockJS connection and validate it on the server\nside. In essence, this is how cookies work.\n\n### Deploying SockJS on Heroku\n\nLong polling is known to cause problems on Heroku, but\n[workaround for SockJS is available](https://github.com/sockjs/sockjs-node/issues/57#issuecomment-5242187).\n# signal-exit\n\n[](https://travis-ci.org/tapjs/signal-exit)\n[](https://coveralls.io/r/tapjs/signal-exit?branch=master)\n[](https://www.npmjs.com/package/signal-exit)\n[](https://ci.appveyor.com/project/bcoe/signal-exit)\n[](https://github.com/conventional-changelog/standard-version)\n\nWhen you want to fire an event no matter how a process exits:\n\n* reaching the end of execution.\n* explicitly having `process.exit(code)` called.\n* having `process.kill(pid, sig)` called.\n* receiving a fatal signal from outside the process\n\nUse `signal-exit`.\n\n```js\nvar onExit = require('signal-exit')\n\nonExit(function (code, signal) {\n console.log('process exited!')\n})\n```\n\n## API\n\n`var remove = onExit(function (code, signal) {}, options)`\n\nThe return value of the function is a function that will remove the\nhandler.\n\nNote that the function *only* fires for signals if the signal would\ncause the proces to exit. That is, there are no other listeners, and\nit is a fatal signal.\n\n## Options\n\n* `alwaysLast`: Run this handler after any other signal or exit\n handlers. This causes `process.emit` to be monkeypatched.\n# <img src=\"./logo.png\" alt=\"bn.js\" width=\"160\" height=\"160\" />\n\n> BigNum in pure javascript\n\n[](http://travis-ci.org/indutny/bn.js)\n\n## Install\n`npm install --save bn.js`\n\n## Usage\n\n```js\nconst BN = require('bn.js');\n\nvar a = new BN('dead', 16);\nvar b = new BN('101010', 2);\n\nvar res = a.add(b);\nconsole.log(res.toString(10)); // 57047\n```\n\n**Note**: decimals are not supported in this library.\n\n## Notation\n\n### Prefixes\n\nThere are several prefixes to instructions that affect the way the work. Here\nis the list of them in the order of appearance in the function name:\n\n* `i` - perform operation in-place, storing the result in the host object (on\n which the method was invoked). Might be used to avoid number allocation costs\n* `u` - unsigned, ignore the sign of operands when performing operation, or\n always return positive value. Second case applies to reduction operations\n like `mod()`. In such cases if the result will be negative - modulo will be\n added to the result to make it positive\n\n### Postfixes\n\nThe only available postfix at the moment is:\n\n* `n` - which means that the argument of the function must be a plain JavaScript\n Number. Decimals are not supported.\n\n### Examples\n\n* `a.iadd(b)` - perform addition on `a` and `b`, storing the result in `a`\n* `a.umod(b)` - reduce `a` modulo `b`, returning positive value\n* `a.iushln(13)` - shift bits of `a` left by 13\n\n## Instructions\n\nPrefixes/postfixes are put in parens at the of the line. `endian` - could be\neither `le` (little-endian) or `be` (big-endian).\n\n### Utilities\n\n* `a.clone()` - clone number\n* `a.toString(base, length)` - convert to base-string and pad with zeroes\n* `a.toNumber()` - convert to Javascript Number (limited to 53 bits)\n* `a.toJSON()` - convert to JSON compatible hex string (alias of `toString(16)`)\n* `a.toArray(endian, length)` - convert to byte `Array`, and optionally zero\n pad to length, throwing if already exceeding\n* `a.toArrayLike(type, endian, length)` - convert to an instance of `type`,\n which must behave like an `Array`\n* `a.toBuffer(endian, length)` - convert to Node.js Buffer (if available). For\n compatibility with browserify and similar tools, use this instead:\n `a.toArrayLike(Buffer, endian, length)`\n* `a.bitLength()` - get number of bits occupied\n* `a.zeroBits()` - return number of less-significant consequent zero bits\n (example: `1010000` has 4 zero bits)\n* `a.byteLength()` - return number of bytes occupied\n* `a.isNeg()` - true if the number is negative\n* `a.isEven()` - no comments\n* `a.isOdd()` - no comments\n* `a.isZero()` - no comments\n* `a.cmp(b)` - compare numbers and return `-1` (a `<` b), `0` (a `==` b), or `1` (a `>` b)\n depending on the comparison result (`ucmp`, `cmpn`)\n* `a.lt(b)` - `a` less than `b` (`n`)\n* `a.lte(b)` - `a` less than or equals `b` (`n`)\n* `a.gt(b)` - `a` greater than `b` (`n`)\n* `a.gte(b)` - `a` greater than or equals `b` (`n`)\n* `a.eq(b)` - `a` equals `b` (`n`)\n* `a.toTwos(width)` - convert to two's complement representation, where `width` is bit width\n* `a.fromTwos(width)` - convert from two's complement representation, where `width` is the bit width\n* `BN.isBN(object)` - returns true if the supplied `object` is a BN.js instance\n\n### Arithmetics\n\n* `a.neg()` - negate sign (`i`)\n* `a.abs()` - absolute value (`i`)\n* `a.add(b)` - addition (`i`, `n`, `in`)\n* `a.sub(b)` - subtraction (`i`, `n`, `in`)\n* `a.mul(b)` - multiply (`i`, `n`, `in`)\n* `a.sqr()` - square (`i`)\n* `a.pow(b)` - raise `a` to the power of `b`\n* `a.div(b)` - divide (`divn`, `idivn`)\n* `a.mod(b)` - reduct (`u`, `n`) (but no `umodn`)\n* `a.divRound(b)` - rounded division\n\n### Bit operations\n\n* `a.or(b)` - or (`i`, `u`, `iu`)\n* `a.and(b)` - and (`i`, `u`, `iu`, `andln`) (NOTE: `andln` is going to be replaced\n with `andn` in future)\n* `a.xor(b)` - xor (`i`, `u`, `iu`)\n* `a.setn(b)` - set specified bit to `1`\n* `a.shln(b)` - shift left (`i`, `u`, `iu`)\n* `a.shrn(b)` - shift right (`i`, `u`, `iu`)\n* `a.testn(b)` - test if specified bit is set\n* `a.maskn(b)` - clear bits with indexes higher or equal to `b` (`i`)\n* `a.bincn(b)` - add `1 << b` to the number\n* `a.notn(w)` - not (for the width specified by `w`) (`i`)\n\n### Reduction\n\n* `a.gcd(b)` - GCD\n* `a.egcd(b)` - Extended GCD results (`{ a: ..., b: ..., gcd: ... }`)\n* `a.invm(b)` - inverse `a` modulo `b`\n\n## Fast reduction\n\nWhen doing lots of reductions using the same modulo, it might be beneficial to\nuse some tricks: like [Montgomery multiplication][0], or using special algorithm\nfor [Mersenne Prime][1].\n\n### Reduction context\n\nTo enable this tricks one should create a reduction context:\n\n```js\nvar red = BN.red(num);\n```\nwhere `num` is just a BN instance.\n\nOr:\n\n```js\nvar red = BN.red(primeName);\n```\n\nWhere `primeName` is either of these [Mersenne Primes][1]:\n\n* `'k256'`\n* `'p224'`\n* `'p192'`\n* `'p25519'`\n\nOr:\n\n```js\nvar red = BN.mont(num);\n```\n\nTo reduce numbers with [Montgomery trick][0]. `.mont()` is generally faster than\n`.red(num)`, but slower than `BN.red(primeName)`.\n\n### Converting numbers\n\nBefore performing anything in reduction context - numbers should be converted\nto it. Usually, this means that one should:\n\n* Convert inputs to reducted ones\n* Operate on them in reduction context\n* Convert outputs back from the reduction context\n\nHere is how one may convert numbers to `red`:\n\n```js\nvar redA = a.toRed(red);\n```\nWhere `red` is a reduction context created using instructions above\n\nHere is how to convert them back:\n\n```js\nvar a = redA.fromRed();\n```\n\n### Red instructions\n\nMost of the instructions from the very start of this readme have their\ncounterparts in red context:\n\n* `a.redAdd(b)`, `a.redIAdd(b)`\n* `a.redSub(b)`, `a.redISub(b)`\n* `a.redShl(num)`\n* `a.redMul(b)`, `a.redIMul(b)`\n* `a.redSqr()`, `a.redISqr()`\n* `a.redSqrt()` - square root modulo reduction context's prime\n* `a.redInvm()` - modular inverse of the number\n* `a.redNeg()`\n* `a.redPow(b)` - modular exponentiation\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: https://en.wikipedia.org/wiki/Montgomery_modular_multiplication\n[1]: https://en.wikipedia.org/wiki/Mersenne_prime\n# assert\n\n[](https://travis-ci.org/defunctzombie/commonjs-assert)\n\nThis module is used for writing unit tests for your applications, you can access it with require('assert').\n\nThe API is derived from the [commonjs 1.0 unit testing](http://wiki.commonjs.org/wiki/Unit_Testing/1.0) spec and the [node.js assert module](http://nodejs.org/api/assert.html)\n\n## assert.fail(actual, expected, message, operator)\nThrows an exception that displays the values for actual and expected separated by the provided operator.\n\n## assert(value, message), assert.ok(value, [message])\nTests if value is truthy, it is equivalent to assert.equal(true, !!value, message);\n\n## assert.equal(actual, expected, [message])\nTests shallow, coercive equality with the equal comparison operator ( == ).\n\n## assert.notEqual(actual, expected, [message])\nTests shallow, coercive non-equality with the not equal comparison operator ( != ).\n\n## assert.deepEqual(actual, expected, [message])\nTests for deep equality.\n\n## assert.notDeepEqual(actual, expected, [message])\nTests for any deep inequality.\n\n## assert.strictEqual(actual, expected, [message])\nTests strict equality, as determined by the strict equality operator ( === )\n\n## assert.notStrictEqual(actual, expected, [message])\nTests strict non-equality, as determined by the strict not equal operator ( !== )\n\n## assert.throws(block, [error], [message])\nExpects block to throw an error. error can be constructor, regexp or validation function.\n\nValidate instanceof using constructor:\n\n```javascript\nassert.throws(function() { throw new Error(\"Wrong value\"); }, Error);\n```\n\nValidate error message using RegExp:\n\n```javascript\nassert.throws(function() { throw new Error(\"Wrong value\"); }, /value/);\n```\n\nCustom error validation:\n\n```javascript\nassert.throws(function() {\n throw new Error(\"Wrong value\");\n}, function(err) {\n if ( (err instanceof Error) && /value/.test(err) ) {\n return true;\n }\n}, \"unexpected error\");\n```\n\n## assert.doesNotThrow(block, [message])\nExpects block not to throw an error, see assert.throws for details.\n\n## assert.ifError(value)\nTests if value is not a false value, throws if it is a true value. Useful when testing the first argument, error in callbacks.\n# Tapable\n\nThe tapable package expose many Hook classes, which can be used to create hooks for plugins.\n\n``` javascript\nconst {\n\tSyncHook,\n\tSyncBailHook,\n\tSyncWaterfallHook,\n\tSyncLoopHook,\n\tAsyncParallelHook,\n\tAsyncParallelBailHook,\n\tAsyncSeriesHook,\n\tAsyncSeriesBailHook,\n\tAsyncSeriesWaterfallHook\n } = require(\"tapable\");\n```\n\n## Installation\n\n``` shell\nnpm install --save tapable\n```\n\n## Usage\n\nAll Hook constructors take one optional argument, which is a list of argument names as strings.\n\n``` js\nconst hook = new SyncHook([\"arg1\", \"arg2\", \"arg3\"]);\n```\n\nThe best practice is to expose all hooks of a class in a `hooks` property:\n\n``` js\nclass Car {\n\tconstructor() {\n\t\tthis.hooks = {\n\t\t\taccelerate: new SyncHook([\"newSpeed\"]),\n\t\t\tbrake: new SyncHook(),\n\t\t\tcalculateRoutes: new AsyncParallelHook([\"source\", \"target\", \"routesList\"])\n\t\t};\n\t}\n\n\t/* ... */\n}\n```\n\nOther people can now use these hooks:\n\n``` js\nconst myCar = new Car();\n\n// Use the tap method to add a consument\nmyCar.hooks.brake.tap(\"WarningLampPlugin\", () => warningLamp.on());\n```\n\nIt's required to pass a name to identify the plugin/reason.\n\nYou may receive arguments:\n\n``` js\nmyCar.hooks.accelerate.tap(\"LoggerPlugin\", newSpeed => console.log(`Accelerating to ${newSpeed}`));\n```\n\nFor sync hooks, `tap` is the only valid method to add a plugin. Async hooks also support async plugins:\n\n``` js\nmyCar.hooks.calculateRoutes.tapPromise(\"GoogleMapsPlugin\", (source, target, routesList) => {\n\t// return a promise\n\treturn google.maps.findRoute(source, target).then(route => {\n\t\troutesList.add(route);\n\t});\n});\nmyCar.hooks.calculateRoutes.tapAsync(\"BingMapsPlugin\", (source, target, routesList, callback) => {\n\tbing.findRoute(source, target, (err, route) => {\n\t\tif(err) return callback(err);\n\t\troutesList.add(route);\n\t\t// call the callback\n\t\tcallback();\n\t});\n});\n\n// You can still use sync plugins\nmyCar.hooks.calculateRoutes.tap(\"CachedRoutesPlugin\", (source, target, routesList) => {\n\tconst cachedRoute = cache.get(source, target);\n\tif(cachedRoute)\n\t\troutesList.add(cachedRoute);\n})\n```\n\nThe class declaring these hooks need to call them:\n\n``` js\nclass Car {\n\t/* ... */\n\n\tsetSpeed(newSpeed) {\n\t\tthis.hooks.accelerate.call(newSpeed);\n\t}\n\n\tuseNavigationSystemPromise(source, target) {\n\t\tconst routesList = new List();\n\t\treturn this.hooks.calculateRoutes.promise(source, target, routesList).then(() => {\n\t\t\treturn routesList.getRoutes();\n\t\t});\n\t}\n\n\tuseNavigationSystemAsync(source, target, callback) {\n\t\tconst routesList = new List();\n\t\tthis.hooks.calculateRoutes.callAsync(source, target, routesList, err => {\n\t\t\tif(err) return callback(err);\n\t\t\tcallback(null, routesList.getRoutes());\n\t\t});\n\t}\n}\n```\n\nThe Hook will compile a method with the most efficient way of running your plugins. It generates code depending on:\n* The number of registered plugins (none, one, many)\n* The kind of registered plugins (sync, async, promise)\n* The used call method (sync, async, promise)\n* The number of arguments\n* Whether interception is used\n\nThis ensures fastest possible execution.\n\n## Hook types\n\nEach hook can be tapped with one or several functions. How they are executed depends on the hook type:\n\n* Basic hook (without “Waterfall”, “Bail” or “Loop” in its name). This hook simply calls every function it tapped in a row.\n\n* __Waterfall__. A waterfall hook also calls each tapped function in a row. Unlike the basic hook, it passes a return value from each function to the next function.\n\n* __Bail__. A bail hook allows exiting early. When any of the tapped function returns anything, the bail hook will stop executing the remaining ones.\n\n* __Loop__. TODO\n\nAdditionally, hooks can be synchronous or asynchronous. To reflect this, there’re “Sync”, “AsyncSeries”, and “AsyncParallel” hook classes:\n\n* __Sync__. A sync hook can only be tapped with synchronous functions (using `myHook.tap()`).\n\n* __AsyncSeries__. An async-series hook can be tapped with synchronous, callback-based and promise-based functions (using `myHook.tap()`, `myHook.tapAsync()` and `myHook.tapPromise()`). They call each async method in a row.\n\n* __AsyncParallel__. An async-parallel hook can also be tapped with synchronous, callback-based and promise-based functions (using `myHook.tap()`, `myHook.tapAsync()` and `myHook.tapPromise()`). However, they run each async method in parallel.\n\nThe hook type is reflected in its class name. E.g., `AsyncSeriesWaterfallHook` allows asynchronous functions and runs them in series, passing each function’s return value into the next function.\n\n## Interception\n\nAll Hooks offer an additional interception API:\n\n``` js\nmyCar.hooks.calculateRoutes.intercept({\n\tcall: (source, target, routesList) => {\n\t\tconsole.log(\"Starting to calculate routes\");\n\t},\n\tregister: (tapInfo) => {\n\t\t// tapInfo = { type: \"promise\", name: \"GoogleMapsPlugin\", fn: ... }\n\t\tconsole.log(`${tapInfo.name} is doing its job`);\n\t\treturn tapInfo; // may return a new tapInfo object\n\t}\n})\n```\n\n**call**: `(...args) => void` Adding `call` to your interceptor will trigger when hooks are triggered. You have access to the hooks arguments.\n\n**tap**: `(tap: Tap) => void` Adding `tap` to your interceptor will trigger when a plugin taps into a hook. Provided is the `Tap` object. `Tap` object can't be changed.\n\n**loop**: `(...args) => void` Adding `loop` to your interceptor will trigger for each loop of a looping hook.\n\n**register**: `(tap: Tap) => Tap | undefined` Adding `register` to your interceptor will trigger for each added `Tap` and allows to modify it.\n\n## Context\n\nPlugins and interceptors can opt-in to access an optional `context` object, which can be used to pass arbitrary values to subsequent plugins and interceptors.\n\n``` js\nmyCar.hooks.accelerate.intercept({\n\tcontext: true,\n\ttap: (context, tapInfo) => {\n\t\t// tapInfo = { type: \"sync\", name: \"NoisePlugin\", fn: ... }\n\t\tconsole.log(`${tapInfo.name} is doing it's job`);\n\n\t\t// `context` starts as an empty object if at least one plugin uses `context: true`.\n\t\t// If no plugins use `context: true`, then `context` is undefined.\n\t\tif (context) {\n\t\t\t// Arbitrary properties can be added to `context`, which plugins can then access.\n\t\t\tcontext.hasMuffler = true;\n\t\t}\n\t}\n});\n\nmyCar.hooks.accelerate.tap({\n\tname: \"NoisePlugin\",\n\tcontext: true\n}, (context, newSpeed) => {\n\tif (context && context.hasMuffler) {\n\t\tconsole.log(\"Silence...\");\n\t} else {\n\t\tconsole.log(\"Vroom!\");\n\t}\n});\n```\n\n## HookMap\n\nA HookMap is a helper class for a Map with Hooks\n\n``` js\nconst keyedHook = new HookMap(key => new SyncHook([\"arg\"]))\n```\n\n``` js\nkeyedHook.tap(\"some-key\", \"MyPlugin\", (arg) => { /* ... */ });\nkeyedHook.tapAsync(\"some-key\", \"MyPlugin\", (arg, callback) => { /* ... */ });\nkeyedHook.tapPromise(\"some-key\", \"MyPlugin\", (arg) => { /* ... */ });\n```\n\n``` js\nconst hook = keyedHook.get(\"some-key\");\nif(hook !== undefined) {\n\thook.callAsync(\"arg\", err => { /* ... */ });\n}\n```\n\n## Hook/HookMap interface\n\nPublic:\n\n``` ts\ninterface Hook {\n\ttap: (name: string | Tap, fn: (context?, ...args) => Result) => void,\n\ttapAsync: (name: string | Tap, fn: (context?, ...args, callback: (err, result: Result) => void) => void) => void,\n\ttapPromise: (name: string | Tap, fn: (context?, ...args) => Promise<Result>) => void,\n\tintercept: (interceptor: HookInterceptor) => void\n}\n\ninterface HookInterceptor {\n\tcall: (context?, ...args) => void,\n\tloop: (context?, ...args) => void,\n\ttap: (context?, tap: Tap) => void,\n\tregister: (tap: Tap) => Tap,\n\tcontext: boolean\n}\n\ninterface HookMap {\n\tfor: (key: any) => Hook,\n\ttap: (key: any, name: string | Tap, fn: (context?, ...args) => Result) => void,\n\ttapAsync: (key: any, name: string | Tap, fn: (context?, ...args, callback: (err, result: Result) => void) => void) => void,\n\ttapPromise: (key: any, name: string | Tap, fn: (context?, ...args) => Promise<Result>) => void,\n\tintercept: (interceptor: HookMapInterceptor) => void\n}\n\ninterface HookMapInterceptor {\n\tfactory: (key: any, hook: Hook) => Hook\n}\n\ninterface Tap {\n\tname: string,\n\ttype: string\n\tfn: Function,\n\tstage: number,\n\tcontext: boolean\n}\n```\n\nProtected (only for the class containing the hook):\n\n``` ts\ninterface Hook {\n\tisUsed: () => boolean,\n\tcall: (...args) => Result,\n\tpromise: (...args) => Promise<Result>,\n\tcallAsync: (...args, callback: (err, result: Result) => void) => void,\n}\n\ninterface HookMap {\n\tget: (key: any) => Hook | undefined,\n\tfor: (key: any) => Hook\n}\n```\n\n## MultiHook\n\nA helper Hook-like class to redirect taps to multiple other hooks:\n\n``` js\nconst { MultiHook } = require(\"tapable\");\n\nthis.hooks.allHooks = new MultiHook([this.hooks.hookA, this.hooks.hookB]);\n```\n# through2\n\n[](https://nodei.co/npm/through2/)\n\n**A tiny wrapper around Node streams.Transform (Streams2/3) to avoid explicit subclassing noise**\n\nInspired by [Dominic Tarr](https://github.com/dominictarr)'s [through](https://github.com/dominictarr/through) in that it's so much easier to make a stream out of a function than it is to set up the prototype chain properly: `through(function (chunk) { ... })`.\n\nNote: As 2.x.x this module starts using **Streams3** instead of Stream2. To continue using a Streams2 version use `npm install through2@0` to fetch the latest version of 0.x.x. More information about Streams2 vs Streams3 and recommendations see the article **[Why I don't use Node's core 'stream' module](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html)**.\n\n```js\nfs.createReadStream('ex.txt')\n .pipe(through2(function (chunk, enc, callback) {\n for (var i = 0; i < chunk.length; i++)\n if (chunk[i] == 97)\n chunk[i] = 122 // swap 'a' for 'z'\n\n this.push(chunk)\n\n callback()\n }))\n .pipe(fs.createWriteStream('out.txt'))\n .on('finish', () => doSomethingSpecial())\n```\n\nOr object streams:\n\n```js\nvar all = []\n\nfs.createReadStream('data.csv')\n .pipe(csv2())\n .pipe(through2.obj(function (chunk, enc, callback) {\n var data = {\n name : chunk[0]\n , address : chunk[3]\n , phone : chunk[10]\n }\n this.push(data)\n\n callback()\n }))\n .on('data', (data) => {\n all.push(data)\n })\n .on('end', () => {\n doSomethingSpecial(all)\n })\n```\n\nNote that `through2.obj(fn)` is a convenience wrapper around `through2({ objectMode: true }, fn)`.\n\n## API\n\n<b><code>through2([ options, ] [ transformFunction ] [, flushFunction ])</code></b>\n\nConsult the **[stream.Transform](http://nodejs.org/docs/latest/api/stream.html#stream_class_stream_transform)** documentation for the exact rules of the `transformFunction` (i.e. `this._transform`) and the optional `flushFunction` (i.e. `this._flush`).\n\n### options\n\nThe options argument is optional and is passed straight through to `stream.Transform`. So you can use `objectMode:true` if you are processing non-binary streams (or just use `through2.obj()`).\n\nThe `options` argument is first, unlike standard convention, because if I'm passing in an anonymous function then I'd prefer for the options argument to not get lost at the end of the call:\n\n```js\nfs.createReadStream('/tmp/important.dat')\n .pipe(through2({ objectMode: true, allowHalfOpen: false },\n (chunk, enc, cb) => {\n cb(null, 'wut?') // note we can use the second argument on the callback\n // to provide data as an alternative to this.push('wut?')\n }\n )\n .pipe(fs.createWriteStream('/tmp/wut.txt'))\n```\n\n### transformFunction\n\nThe `transformFunction` must have the following signature: `function (chunk, encoding, callback) {}`. A minimal implementation should call the `callback` function to indicate that the transformation is done, even if that transformation means discarding the chunk.\n\nTo queue a new chunk, call `this.push(chunk)`—this can be called as many times as required before the `callback()` if you have multiple pieces to send on.\n\nAlternatively, you may use `callback(err, chunk)` as shorthand for emitting a single chunk or an error.\n\nIf you **do not provide a `transformFunction`** then you will get a simple pass-through stream.\n\n### flushFunction\n\nThe optional `flushFunction` is provided as the last argument (2nd or 3rd, depending on whether you've supplied options) is called just prior to the stream ending. Can be used to finish up any processing that may be in progress.\n\n```js\nfs.createReadStream('/tmp/important.dat')\n .pipe(through2(\n (chunk, enc, cb) => cb(null, chunk), // transform is a noop\n function (cb) { // flush function\n this.push('tacking on an extra buffer to the end');\n cb();\n }\n ))\n .pipe(fs.createWriteStream('/tmp/wut.txt'));\n```\n\n<b><code>through2.ctor([ options, ] transformFunction[, flushFunction ])</code></b>\n\nInstead of returning a `stream.Transform` instance, `through2.ctor()` returns a **constructor** for a custom Transform. This is useful when you want to use the same transform logic in multiple instances.\n\n```js\nvar FToC = through2.ctor({objectMode: true}, function (record, encoding, callback) {\n if (record.temp != null && record.unit == \"F\") {\n record.temp = ( ( record.temp - 32 ) * 5 ) / 9\n record.unit = \"C\"\n }\n this.push(record)\n callback()\n})\n\n// Create instances of FToC like so:\nvar converter = new FToC()\n// Or:\nvar converter = FToC()\n// Or specify/override options when you instantiate, if you prefer:\nvar converter = FToC({objectMode: true})\n```\n\n## See Also\n\n - [through2-map](https://github.com/brycebaril/through2-map) - Array.prototype.map analog for streams.\n - [through2-filter](https://github.com/brycebaril/through2-filter) - Array.prototype.filter analog for streams.\n - [through2-reduce](https://github.com/brycebaril/through2-reduce) - Array.prototype.reduce analog for streams.\n - [through2-spy](https://github.com/brycebaril/through2-spy) - Wrapper for simple stream.PassThrough spies.\n - the [mississippi stream utility collection](https://github.com/maxogden/mississippi) includes `through2` as well as many more useful stream modules similar to this one\n\n## License\n\n**through2** is Copyright (c) Rod Vagg [@rvagg](https://twitter.com/rvagg) and additional contributors and licensed under the MIT license. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.\n# detect-file [](https://www.npmjs.com/package/detect-file) [](https://npmjs.org/package/detect-file) [](https://npmjs.org/package/detect-file) [](https://travis-ci.org/doowb/detect-file) [](https://ci.appveyor.com/project/doowb/detect-file)\n\n> Detects if a file exists and returns the resolved filepath.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save detect-file\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add detect-file\n```\n\n## Usage\n\n```js\nvar detect = require('detect-file');\n```\n\n## API\n\n### [detect](index.js#L33)\n\nDetect the given `filepath` if it exists.\n\n**Params**\n\n* `filepath` **{String}**: filepath to detect.\n* `options` **{Object}**: Additional options.\n* `options.nocase` **{Boolean}**: Set this to `true` to force case-insensitive filename checks. This is useful on case sensitive file systems.\n* `returns` **{String}**: Returns the detected filepath if it exists, otherwise returns `null`.\n\n**Example**\n\n```js\nvar res = detect('package.json');\nconsole.log(res);\n//=> \"package.json\"\n\nvar res = detect('fake-file.json');\nconsole.log(res)\n//=> null\n```\n\n## Case sensitive file systems\n\nWhen using the `nocase` option, this library will attempt to detect the filepath with the following methods:\n\n1. Try to read all files in the `filepath` using `fs.readdirSync`. If successful and `filepath` is a directory, return the `filepath`.\n2. Try to read all files in the `filepath`'s directory using `fs.readdirSync`. If successful, do case insensitive comparasions of the `filepath` to the files in `filepath`'s directory.\n\n## About\n\n### Related projects\n\n[fs-exists-sync](https://www.npmjs.com/package/fs-exists-sync): Drop-in replacement for `fs.existsSync` with zero dependencies. Other libs I found either have crucial differences… [more](https://github.com/jonschlinkert/fs-exists-sync) | [homepage](https://github.com/jonschlinkert/fs-exists-sync \"Drop-in replacement for `fs.existsSync` with zero dependencies. Other libs I found either have crucial differences from fs.existsSync, or unnecessary dependencies. See README.md for more info.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Brian Woodward**\n\n* [github/doowb](https://github.com/doowb)\n* [twitter/doowb](https://twitter.com/doowb)\n\n### License\n\nCopyright © 2017, [Brian Woodward](https://github.com/doowb).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on August 05, 2017._\n<p align=\"center\">\n <img src=\"https://raw.github.com/nodejitsu/node-http-proxy/master/doc/logo.png\"/>\n</p>\n\n# node-http-proxy [](https://travis-ci.org/nodejitsu/node-http-proxy) [](https://codecov.io/gh/nodejitsu/node-http-proxy)\n\n`node-http-proxy` is an HTTP programmable proxying library that supports\nwebsockets. It is suitable for implementing components such as reverse\nproxies and load balancers.\n\n### Table of Contents\n * [Installation](#installation)\n * [Upgrading from 0.8.x ?](#upgrading-from-08x-)\n * [Core Concept](#core-concept)\n * [Use Cases](#use-cases)\n * [Setup a basic stand-alone proxy server](#setup-a-basic-stand-alone-proxy-server)\n * [Setup a stand-alone proxy server with custom server logic](#setup-a-stand-alone-proxy-server-with-custom-server-logic)\n * [Setup a stand-alone proxy server with proxy request header re-writing](#setup-a-stand-alone-proxy-server-with-proxy-request-header-re-writing)\n * [Modify a response from a proxied server](#modify-a-response-from-a-proxied-server)\n * [Setup a stand-alone proxy server with latency](#setup-a-stand-alone-proxy-server-with-latency)\n * [Using HTTPS](#using-https)\n * [Proxying WebSockets](#proxying-websockets)\n * [Options](#options)\n * [Listening for proxy events](#listening-for-proxy-events)\n * [Shutdown](#shutdown)\n * [Miscellaneous](#miscellaneous)\n * [Test](#test)\n * [ProxyTable API](#proxytable-api)\n * [Logo](#logo)\n * [Contributing and Issues](#contributing-and-issues)\n * [License](#license)\n\n### Installation\n\n`npm install http-proxy --save`\n\n**[Back to top](#table-of-contents)**\n\n### Upgrading from 0.8.x ?\n\nClick [here](UPGRADING.md)\n\n**[Back to top](#table-of-contents)**\n\n### Core Concept\n\nA new proxy is created by calling `createProxyServer` and passing\nan `options` object as argument ([valid properties are available here](lib/http-proxy.js#L22-L50))\n\n```javascript\nvar httpProxy = require('http-proxy');\n\nvar proxy = httpProxy.createProxyServer(options); // See (†)\n```\n†Unless listen(..) is invoked on the object, this does not create a webserver. See below.\n\nAn object will be returned with four methods:\n\n* web `req, res, [options]` (used for proxying regular HTTP(S) requests)\n* ws `req, socket, head, [options]` (used for proxying WS(S) requests)\n* listen `port` (a function that wraps the object in a webserver, for your convenience)\n* close `[callback]` (a function that closes the inner webserver and stops listening on given port)\n\nIt is then possible to proxy requests by calling these functions\n\n```javascript\nhttp.createServer(function(req, res) {\n proxy.web(req, res, { target: 'http://mytarget.com:8080' });\n});\n```\n\nErrors can be listened on either using the Event Emitter API\n\n```javascript\nproxy.on('error', function(e) {\n ...\n});\n```\n\nor using the callback API\n\n```javascript\nproxy.web(req, res, { target: 'http://mytarget.com:8080' }, function(e) { ... });\n```\n\nWhen a request is proxied it follows two different pipelines ([available here](lib/http-proxy/passes))\nwhich apply transformations to both the `req` and `res` object.\nThe first pipeline (incoming) is responsible for the creation and manipulation of the stream that connects your client to the target.\nThe second pipeline (outgoing) is responsible for the creation and manipulation of the stream that, from your target, returns data\nto the client.\n\n**[Back to top](#table-of-contents)**\n\n### Use Cases\n\n#### Setup a basic stand-alone proxy server\n\n```js\nvar http = require('http'),\n httpProxy = require('http-proxy');\n//\n// Create your proxy server and set the target in the options.\n//\nhttpProxy.createProxyServer({target:'http://localhost:9000'}).listen(8000); // See (†)\n\n//\n// Create your target server\n//\nhttp.createServer(function (req, res) {\n res.writeHead(200, { 'Content-Type': 'text/plain' });\n res.write('request successfully proxied!' + '\\n' + JSON.stringify(req.headers, true, 2));\n res.end();\n}).listen(9000);\n```\n†Invoking listen(..) triggers the creation of a web server. Otherwise, just the proxy instance is created.\n\n**[Back to top](#table-of-contents)**\n\n#### Setup a stand-alone proxy server with custom server logic\nThis example shows how you can proxy a request using your own HTTP server\nand also you can put your own logic to handle the request.\n\n```js\nvar http = require('http'),\n httpProxy = require('http-proxy');\n\n//\n// Create a proxy server with custom application logic\n//\nvar proxy = httpProxy.createProxyServer({});\n\n//\n// Create your custom server and just call `proxy.web()` to proxy\n// a web request to the target passed in the options\n// also you can use `proxy.ws()` to proxy a websockets request\n//\nvar server = http.createServer(function(req, res) {\n // You can define here your custom logic to handle the request\n // and then proxy the request.\n proxy.web(req, res, { target: 'http://127.0.0.1:5060' });\n});\n\nconsole.log(\"listening on port 5050\")\nserver.listen(5050);\n```\n\n**[Back to top](#table-of-contents)**\n\n#### Setup a stand-alone proxy server with proxy request header re-writing\nThis example shows how you can proxy a request using your own HTTP server that\nmodifies the outgoing proxy request by adding a special header.\n\n```js\nvar http = require('http'),\n httpProxy = require('http-proxy');\n\n//\n// Create a proxy server with custom application logic\n//\nvar proxy = httpProxy.createProxyServer({});\n\n// To modify the proxy connection before data is sent, you can listen\n// for the 'proxyReq' event. When the event is fired, you will receive\n// the following arguments:\n// (http.ClientRequest proxyReq, http.IncomingMessage req,\n// http.ServerResponse res, Object options). This mechanism is useful when\n// you need to modify the proxy request before the proxy connection\n// is made to the target.\n//\nproxy.on('proxyReq', function(proxyReq, req, res, options) {\n proxyReq.setHeader('X-Special-Proxy-Header', 'foobar');\n});\n\nvar server = http.createServer(function(req, res) {\n // You can define here your custom logic to handle the request\n // and then proxy the request.\n proxy.web(req, res, {\n target: 'http://127.0.0.1:5060'\n });\n});\n\nconsole.log(\"listening on port 5050\")\nserver.listen(5050);\n```\n\n**[Back to top](#table-of-contents)**\n\n#### Modify a response from a proxied server\nSometimes when you have received a HTML/XML document from the server of origin you would like to modify it before forwarding it on.\n\n[Harmon](https://github.com/No9/harmon) allows you to do this in a streaming style so as to keep the pressure on the proxy to a minimum.\n\n**[Back to top](#table-of-contents)**\n\n#### Setup a stand-alone proxy server with latency\n\n```js\nvar http = require('http'),\n httpProxy = require('http-proxy');\n\n//\n// Create a proxy server with latency\n//\nvar proxy = httpProxy.createProxyServer();\n\n//\n// Create your server that makes an operation that waits a while\n// and then proxies the request\n//\nhttp.createServer(function (req, res) {\n // This simulates an operation that takes 500ms to execute\n setTimeout(function () {\n proxy.web(req, res, {\n target: 'http://localhost:9008'\n });\n }, 500);\n}).listen(8008);\n\n//\n// Create your target server\n//\nhttp.createServer(function (req, res) {\n res.writeHead(200, { 'Content-Type': 'text/plain' });\n res.write('request successfully proxied to: ' + req.url + '\\n' + JSON.stringify(req.headers, true, 2));\n res.end();\n}).listen(9008);\n```\n\n**[Back to top](#table-of-contents)**\n\n#### Using HTTPS\nYou can activate the validation of a secure SSL certificate to the target connection (avoid self-signed certs), just set `secure: true` in the options.\n\n##### HTTPS -> HTTP\n\n```js\n//\n// Create the HTTPS proxy server in front of a HTTP server\n//\nhttpProxy.createServer({\n target: {\n host: 'localhost',\n port: 9009\n },\n ssl: {\n key: fs.readFileSync('valid-ssl-key.pem', 'utf8'),\n cert: fs.readFileSync('valid-ssl-cert.pem', 'utf8')\n }\n}).listen(8009);\n```\n\n##### HTTPS -> HTTPS\n\n```js\n//\n// Create the proxy server listening on port 443\n//\nhttpProxy.createServer({\n ssl: {\n key: fs.readFileSync('valid-ssl-key.pem', 'utf8'),\n cert: fs.readFileSync('valid-ssl-cert.pem', 'utf8')\n },\n target: 'https://localhost:9010',\n secure: true // Depends on your needs, could be false.\n}).listen(443);\n```\n\n##### HTTP -> HTTPS (using a PKCS12 client certificate)\n\n```js\n//\n// Create an HTTP proxy server with an HTTPS target\n//\nhttpProxy.createProxyServer({\n target: {\n protocol: 'https:',\n host: 'my-domain-name',\n port: 443,\n pfx: fs.readFileSync('path/to/certificate.p12'),\n passphrase: 'password',\n },\n changeOrigin: true,\n}).listen(8000);\n```\n\n**[Back to top](#table-of-contents)**\n\n#### Proxying WebSockets\nYou can activate the websocket support for the proxy using `ws:true` in the options.\n\n```js\n//\n// Create a proxy server for websockets\n//\nhttpProxy.createServer({\n target: 'ws://localhost:9014',\n ws: true\n}).listen(8014);\n```\n\nAlso you can proxy the websocket requests just calling the `ws(req, socket, head)` method.\n\n```js\n//\n// Setup our server to proxy standard HTTP requests\n//\nvar proxy = new httpProxy.createProxyServer({\n target: {\n host: 'localhost',\n port: 9015\n }\n});\nvar proxyServer = http.createServer(function (req, res) {\n proxy.web(req, res);\n});\n\n//\n// Listen to the `upgrade` event and proxy the\n// WebSocket requests as well.\n//\nproxyServer.on('upgrade', function (req, socket, head) {\n proxy.ws(req, socket, head);\n});\n\nproxyServer.listen(8015);\n```\n\n**[Back to top](#table-of-contents)**\n\n### Options\n\n`httpProxy.createProxyServer` supports the following options:\n\n* **target**: url string to be parsed with the url module\n* **forward**: url string to be parsed with the url module\n* **agent**: object to be passed to http(s).request (see Node's [https agent](http://nodejs.org/api/https.html#https_class_https_agent) and [http agent](http://nodejs.org/api/http.html#http_class_http_agent) objects)\n* **ssl**: object to be passed to https.createServer()\n* **ws**: true/false, if you want to proxy websockets\n* **xfwd**: true/false, adds x-forward headers\n* **secure**: true/false, if you want to verify the SSL Certs\n* **toProxy**: true/false, passes the absolute URL as the `path` (useful for proxying to proxies)\n* **prependPath**: true/false, Default: true - specify whether you want to prepend the target's path to the proxy path\n* **ignorePath**: true/false, Default: false - specify whether you want to ignore the proxy path of the incoming request (note: you will have to append / manually if required).\n* **localAddress**: Local interface string to bind for outgoing connections\n* **changeOrigin**: true/false, Default: false - changes the origin of the host header to the target URL\n* **preserveHeaderKeyCase**: true/false, Default: false - specify whether you want to keep letter case of response header key\n* **auth**: Basic authentication i.e. 'user:password' to compute an Authorization header.\n* **hostRewrite**: rewrites the location hostname on (201/301/302/307/308) redirects.\n* **autoRewrite**: rewrites the location host/port on (201/301/302/307/308) redirects based on requested host/port. Default: false.\n* **protocolRewrite**: rewrites the location protocol on (201/301/302/307/308) redirects to 'http' or 'https'. Default: null.\n* **cookieDomainRewrite**: rewrites domain of `set-cookie` headers. Possible values:\n * `false` (default): disable cookie rewriting\n * String: new domain, for example `cookieDomainRewrite: \"new.domain\"`. To remove the domain, use `cookieDomainRewrite: \"\"`.\n * Object: mapping of domains to new domains, use `\"*\"` to match all domains.\n For example keep one domain unchanged, rewrite one domain and remove other domains:\n ```\n cookieDomainRewrite: {\n \"unchanged.domain\": \"unchanged.domain\",\n \"old.domain\": \"new.domain\",\n \"*\": \"\"\n }\n ```\n* **cookiePathRewrite**: rewrites path of `set-cookie` headers. Possible values:\n * `false` (default): disable cookie rewriting\n * String: new path, for example `cookiePathRewrite: \"/newPath/\"`. To remove the path, use `cookiePathRewrite: \"\"`. To set path to root use `cookiePathRewrite: \"/\"`.\n * Object: mapping of paths to new paths, use `\"*\"` to match all paths.\n For example, to keep one path unchanged, rewrite one path and remove other paths:\n ```\n cookiePathRewrite: {\n \"/unchanged.path/\": \"/unchanged.path/\",\n \"/old.path/\": \"/new.path/\",\n \"*\": \"\"\n }\n ```\n* **headers**: object with extra headers to be added to target requests.\n* **proxyTimeout**: timeout (in millis) for outgoing proxy requests\n* **timeout**: timeout (in millis) for incoming requests\n* **followRedirects**: true/false, Default: false - specify whether you want to follow redirects\n* **selfHandleResponse** true/false, if set to true, none of the webOutgoing passes are called and it's your responsibility to appropriately return the response by listening and acting on the `proxyRes` event\n* **buffer**: stream of data to send as the request body. Maybe you have some middleware that consumes the request stream before proxying it on e.g. If you read the body of a request into a field called 'req.rawbody' you could restream this field in the buffer option:\n\n ```\n 'use strict';\n\n const streamify = require('stream-array');\n const HttpProxy = require('http-proxy');\n const proxy = new HttpProxy();\n\n module.exports = (req, res, next) => {\n\n proxy.web(req, res, {\n target: 'http://localhost:4003/',\n buffer: streamify(req.rawBody)\n }, next);\n\n };\n ```\n\n**NOTE:**\n`options.ws` and `options.ssl` are optional.\n`options.target` and `options.forward` cannot both be missing\n\nIf you are using the `proxyServer.listen` method, the following options are also applicable:\n\n * **ssl**: object to be passed to https.createServer()\n * **ws**: true/false, if you want to proxy websockets\n\n**[Back to top](#table-of-contents)**\n\n### Listening for proxy events\n\n* `error`: The error event is emitted if the request to the target fail. **We do not do any error handling of messages passed between client and proxy, and messages passed between proxy and target, so it is recommended that you listen on errors and handle them.**\n* `proxyReq`: This event is emitted before the data is sent. It gives you a chance to alter the proxyReq request object. Applies to \"web\" connections\n* `proxyReqWs`: This event is emitted before the data is sent. It gives you a chance to alter the proxyReq request object. Applies to \"websocket\" connections\n* `proxyRes`: This event is emitted if the request to the target got a response.\n* `open`: This event is emitted once the proxy websocket was created and piped into the target websocket.\n* `close`: This event is emitted once the proxy websocket was closed.\n* (DEPRECATED) `proxySocket`: Deprecated in favor of `open`.\n\n```js\nvar httpProxy = require('http-proxy');\n// Error example\n//\n// Http Proxy Server with bad target\n//\nvar proxy = httpProxy.createServer({\n target:'http://localhost:9005'\n});\n\nproxy.listen(8005);\n\n//\n// Listen for the `error` event on `proxy`.\nproxy.on('error', function (err, req, res) {\n res.writeHead(500, {\n 'Content-Type': 'text/plain'\n });\n\n res.end('Something went wrong. And we are reporting a custom error message.');\n});\n\n//\n// Listen for the `proxyRes` event on `proxy`.\n//\nproxy.on('proxyRes', function (proxyRes, req, res) {\n console.log('RAW Response from the target', JSON.stringify(proxyRes.headers, true, 2));\n});\n\n//\n// Listen for the `open` event on `proxy`.\n//\nproxy.on('open', function (proxySocket) {\n // listen for messages coming FROM the target here\n proxySocket.on('data', hybiParseAndLogMessage);\n});\n\n//\n// Listen for the `close` event on `proxy`.\n//\nproxy.on('close', function (res, socket, head) {\n // view disconnected websocket connections\n console.log('Client disconnected');\n});\n```\n\n**[Back to top](#table-of-contents)**\n\n### Shutdown\n\n* When testing or running server within another program it may be necessary to close the proxy.\n* This will stop the proxy from accepting new connections.\n\n```js\nvar proxy = new httpProxy.createProxyServer({\n target: {\n host: 'localhost',\n port: 1337\n }\n});\n\nproxy.close();\n```\n\n**[Back to top](#table-of-contents)**\n\n### Miscellaneous\n\nIf you want to handle your own response after receiving the `proxyRes`, you can do\nso with `selfHandleResponse`. As you can see below, if you use this option, you\nare able to intercept and read the `proxyRes` but you must also make sure to\nreply to the `res` itself otherwise the original client will never receive any\ndata.\n\n### Modify response\n\n```js\n\n var option = {\n target: target,\n selfHandleResponse : true\n };\n proxy.on('proxyRes', function (proxyRes, req, res) {\n var body = new Buffer('');\n proxyRes.on('data', function (data) {\n body = Buffer.concat([body, data]);\n });\n proxyRes.on('end', function () {\n body = body.toString();\n console.log(\"res from proxied server:\", body);\n res.end(\"my response to cli\");\n });\n });\n proxy.web(req, res, option);\n\n```\n\n#### ProxyTable API\n\nA proxy table API is available through this add-on [module](https://github.com/donasaur/http-proxy-rules), which lets you define a set of rules to translate matching routes to target routes that the reverse proxy will talk to.\n\n#### Test\n\n```\n$ npm test\n```\n\n#### Logo\n\nLogo created by [Diego Pasquali](http://dribbble.com/diegopq)\n\n**[Back to top](#table-of-contents)**\n\n### Contributing and Issues\n\n* Read carefully our [Code Of Conduct](https://github.com/nodejitsu/node-http-proxy/blob/master/CODE_OF_CONDUCT.md)\n* Search on Google/Github\n* If you can't find anything, open an issue\n* If you feel comfortable about fixing the issue, fork the repo\n* Commit to your local branch (which must be different from `master`)\n* Submit your Pull Request (be sure to include tests and update documentation)\n\n**[Back to top](#table-of-contents)**\n\n### License\n\n>The MIT License (MIT)\n>\n>Copyright (c) 2010 - 2016 Charlie Robbins, Jarrett Cruger & the Contributors.\n>\n>Permission is hereby granted, free of charge, to any person obtaining a copy\n>of this software and associated documentation files (the \"Software\"), to deal\n>in the Software without restriction, including without limitation the rights\n>to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n>copies of the Software, and to permit persons to whom the Software is\n>furnished to do so, subject to the following conditions:\n>\n>The above copyright notice and this permission notice shall be included in\n>all copies or substantial portions of the Software.\n>\n>THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n>IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n>FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n>AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n>LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n>OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n>THE SOFTWARE.\n<!--\n -- This file is auto-generated from src/README_js.md. Changes should be made there.\n -->\n# Mime\n\nA comprehensive, compact MIME type module.\n\n[](https://travis-ci.org/broofa/node-mime)\n\n## Version 2 Notes\n\nVersion 2 is a breaking change from 1.x as the semver implies. Specifically:\n\n* `lookup()` renamed to `getType()`\n* `extension()` renamed to `getExtension()`\n* `charset()` and `load()` methods have been removed\n\nIf you prefer the legacy version of this module please `npm install mime@^1`. Version 1 docs may be found [here](https://github.com/broofa/node-mime/tree/v1.4.0).\n\n## Install\n\n### NPM\n```\nnpm install mime\n```\n\n### Browser\n\nIt is recommended that you use a bundler such as\n[webpack](https://webpack.github.io/) or [browserify](http://browserify.org/) to\npackage your code. However, browser-ready versions are available via wzrd.in.\nE.g. For the full version:\n\n <script src=\"https://wzrd.in/standalone/mime@latest\"></script>\n <script>\n mime.getType(...); // etc.\n <script>\n\nOr, for the `mime/lite` version:\n\n <script src=\"https://wzrd.in/standalone/mime%2flite@latest\"></script>\n <script>\n mimelite.getType(...); // (Note `mimelite` here)\n <script>\n\n## Quick Start\n\nFor the full version (800+ MIME types, 1,000+ extensions):\n\n```javascript\nconst mime = require('mime');\n\nmime.getType('txt'); // ⇨ 'text/plain'\nmime.getExtension('text/plain'); // ⇨ 'txt'\n\n```\n\nSee [Mime API](#mime-api) below for API details.\n\n## Lite Version\n\nThere is also a \"lite\" version of this module that omits vendor-specific\n(`*/vnd.*`) and experimental (`*/x-*`) types. It weighs in at ~2.5KB, compared\nto 8KB for the full version. To load the lite version:\n\n```javascript\nconst mime = require('mime/lite');\n```\n\n## Mime .vs. mime-types .vs. mime-db modules\n\nFor those of you wondering about the difference between these [popular] NPM modules,\nhere's a brief rundown ...\n\n[`mime-db`](https://github.com/jshttp/mime-db) is \"the source of\ntruth\" for MIME type information. It is not an API. Rather, it is a canonical\ndataset of mime type definitions pulled from IANA, Apache, NGINX, and custom mappings\nsubmitted by the Node.js community.\n\n[`mime-types`](https://github.com/jshttp/mime-types) is a thin\nwrapper around mime-db that provides an API drop-in compatible(ish) with `mime @ < v1.3.6` API.\n\n`mime` is, as of v2, a self-contained module bundled with a pre-optimized version\nof the `mime-db` dataset. It provides a simplified API with the following characteristics:\n\n* Intelligently resolved type conflicts (See [mime-score](https://github.com/broofa/mime-score) for details)\n* Method naming consistent with industry best-practices\n* Compact footprint. E.g. The minified+compressed sizes of the various modules:\n\nModule | Size\n--- | ---\n`mime-db` | 18 KB\n`mime-types` | same as mime-db\n`mime` | 8 KB\n`mime/lite` | 2 KB\n\n## Mime API\n\nBoth `require('mime')` and `require('mime/lite')` return instances of the MIME\nclass, documented below.\n\nNote: Inputs to this API are case-insensitive. Outputs (returned values) will\nbe lowercase.\n\n### new Mime(typeMap, ... more maps)\n\nMost users of this module will not need to create Mime instances directly.\nHowever if you would like to create custom mappings, you may do so as follows\n...\n\n```javascript\n// Require Mime class\nconst Mime = require('mime/Mime');\n\n// Define mime type -> extensions map\nconst typeMap = {\n 'text/abc': ['abc', 'alpha', 'bet'],\n 'text/def': ['leppard']\n};\n\n// Create and use Mime instance\nconst myMime = new Mime(typeMap);\nmyMime.getType('abc'); // ⇨ 'text/abc'\nmyMime.getExtension('text/def'); // ⇨ 'leppard'\n\n```\n\nIf more than one map argument is provided, each map is `define()`ed (see below), in order.\n\n### mime.getType(pathOrExtension)\n\nGet mime type for the given path or extension. E.g.\n\n```javascript\nmime.getType('js'); // ⇨ 'application/javascript'\nmime.getType('json'); // ⇨ 'application/json'\n\nmime.getType('txt'); // ⇨ 'text/plain'\nmime.getType('dir/text.txt'); // ⇨ 'text/plain'\nmime.getType('dir\\\\text.txt'); // ⇨ 'text/plain'\nmime.getType('.text.txt'); // ⇨ 'text/plain'\nmime.getType('.txt'); // ⇨ 'text/plain'\n\n```\n\n`null` is returned in cases where an extension is not detected or recognized\n\n```javascript\nmime.getType('foo/txt'); // ⇨ null\nmime.getType('bogus_type'); // ⇨ null\n\n```\n\n### mime.getExtension(type)\nGet extension for the given mime type. Charset options (often included in\nContent-Type headers) are ignored.\n\n```javascript\nmime.getExtension('text/plain'); // ⇨ 'txt'\nmime.getExtension('application/json'); // ⇨ 'json'\nmime.getExtension('text/html; charset=utf8'); // ⇨ 'html'\n\n```\n\n### mime.define(typeMap[, force = false])\n\nDefine [more] type mappings.\n\n`typeMap` is a map of type -> extensions, as documented in `new Mime`, above.\n\nBy default this method will throw an error if you try to map a type to an\nextension that is already assigned to another type. Passing `true` for the\n`force` argument will suppress this behavior (overriding any previous mapping).\n\n```javascript\nmime.define({'text/x-abc': ['abc', 'abcd']});\n\nmime.getType('abcd'); // ⇨ 'text/x-abc'\nmime.getExtension('text/x-abc') // ⇨ 'abc'\n\n```\n\n## Command Line\n\n mime [path_or_extension]\n\nE.g.\n\n > mime scripts/jquery.js\n application/javascript\n\n----\nMarkdown generated from [src/README_js.md](src/README_js.md) by [](https://github.com/broofa/runmd)\n# has\n\n> Object.prototype.hasOwnProperty.call shortcut\n\n## Installation\n\n```sh\nnpm install --save has\n```\n\n## Usage\n\n```js\nvar has = require('has');\n\nhas({}, 'hasOwnProperty'); // false\nhas(Object.prototype, 'hasOwnProperty'); // true\n```\n# serve-index\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Linux Build][travis-image]][travis-url]\n[![Windows Build][appveyor-image]][appveyor-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n[![Gratipay][gratipay-image]][gratipay-url]\n\n Serves pages that contain directory listings for a given path.\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install serve-index\n```\n\n## API\n\n```js\nvar serveIndex = require('serve-index')\n```\n\n### serveIndex(path, options)\n\nReturns middlware that serves an index of the directory in the given `path`.\n\nThe `path` is based off the `req.url` value, so a `req.url` of `'/some/dir`\nwith a `path` of `'public'` will look at `'public/some/dir'`. If you are using\nsomething like `express`, you can change the URL \"base\" with `app.use` (see\nthe express example).\n\n#### Options\n\nServe index accepts these properties in the options object.\n\n##### filter\n\nApply this filter function to files. Defaults to `false`. The `filter` function\nis called for each file, with the signature `filter(filename, index, files, dir)`\nwhere `filename` is the name of the file, `index` is the array index, `files` is\nthe array of files and `dir` is the absolute path the file is located (and thus,\nthe directory the listing is for).\n\n##### hidden\n\nDisplay hidden (dot) files. Defaults to `false`.\n\n##### icons\n\nDisplay icons. Defaults to `false`.\n\n##### stylesheet\n\nOptional path to a CSS stylesheet. Defaults to a built-in stylesheet.\n\n##### template\n\nOptional path to an HTML template or a function that will render a HTML\nstring. Defaults to a built-in template.\n\nWhen given a string, the string is used as a file path to load and then the\nfollowing tokens are replaced in templates:\n\n * `{directory}` with the name of the directory.\n * `{files}` with the HTML of an unordered list of file links.\n * `{linked-path}` with the HTML of a link to the directory.\n * `{style}` with the specified stylesheet and embedded images.\n\nWhen given as a function, the function is called as `template(locals, callback)`\nand it needs to invoke `callback(error, htmlString)`. The following are the\nprovided locals:\n\n * `directory` is the directory being displayed (where `/` is the root).\n * `displayIcons` is a Boolean for if icons should be rendered or not.\n * `fileList` is a sorted array of files in the directory. The array contains\n objects with the following properties:\n - `name` is the relative name for the file.\n - `stat` is a `fs.Stats` object for the file.\n * `path` is the full filesystem path to `directory`.\n * `style` is the default stylesheet or the contents of the `stylesheet` option.\n * `viewName` is the view name provided by the `view` option.\n\n##### view\n\nDisplay mode. `tiles` and `details` are available. Defaults to `tiles`.\n\n## Examples\n\n### Serve directory indexes with vanilla node.js http server\n\n```js\nvar finalhandler = require('finalhandler')\nvar http = require('http')\nvar serveIndex = require('serve-index')\nvar serveStatic = require('serve-static')\n\n// Serve directory indexes for public/ftp folder (with icons)\nvar index = serveIndex('public/ftp', {'icons': true})\n\n// Serve up public/ftp folder files\nvar serve = serveStatic('public/ftp')\n\n// Create server\nvar server = http.createServer(function onRequest(req, res){\n var done = finalhandler(req, res)\n serve(req, res, function onNext(err) {\n if (err) return done(err)\n index(req, res, done)\n })\n})\n\n// Listen\nserver.listen(3000)\n```\n\n### Serve directory indexes with express\n\n```js\nvar express = require('express')\nvar serveIndex = require('serve-index')\n\nvar app = express()\n\n// Serve URLs like /ftp/thing as public/ftp/thing\n// The express.static serves the file contents\n// The serveIndex is this module serving the directory\napp.use('/ftp', express.static('public/ftp'), serveIndex('public/ftp', {'icons': true}))\n\n// Listen\napp.listen(3000)\n```\n\n## License\n\n[MIT](LICENSE). The [Silk](http://www.famfamfam.com/lab/icons/silk/) icons\nare created by/copyright of [FAMFAMFAM](http://www.famfamfam.com/).\n\n[npm-image]: https://img.shields.io/npm/v/serve-index.svg\n[npm-url]: https://npmjs.org/package/serve-index\n[travis-image]: https://img.shields.io/travis/expressjs/serve-index/master.svg?label=linux\n[travis-url]: https://travis-ci.org/expressjs/serve-index\n[appveyor-image]: https://img.shields.io/appveyor/ci/dougwilson/serve-index/master.svg?label=windows\n[appveyor-url]: https://ci.appveyor.com/project/dougwilson/serve-index\n[coveralls-image]: https://img.shields.io/coveralls/expressjs/serve-index/master.svg\n[coveralls-url]: https://coveralls.io/r/expressjs/serve-index?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/serve-index.svg\n[downloads-url]: https://npmjs.org/package/serve-index\n[gratipay-image]: https://img.shields.io/gratipay/dougwilson.svg\n[gratipay-url]: https://www.gratipay.com/dougwilson/\n# hoist-non-react-statics\n\n[](http://badge.fury.io/js/hoist-non-react-statics)\n[](https://travis-ci.org/mridgway/hoist-non-react-statics)\n[](https://coveralls.io/r/mridgway/hoist-non-react-statics?branch=master)\n[](https://david-dm.org/mridgway/hoist-non-react-statics)\n[](https://david-dm.org/mridgway/hoist-non-react-statics#info=devDependencies)\n\nCopies non-react specific statics from a child component to a parent component. \nSimilar to `Object.assign`, but with React static keywords blacklisted from\nbeing overridden.\n\n```bash\n$ npm install --save hoist-non-react-statics\n```\n\n## Usage\n\n```js\nimport hoistNonReactStatics from 'hoist-non-react-statics';\n\nhoistNonReactStatics(targetComponent, sourceComponent);\n```\n\nIf you have specific statics that you don't want to be hoisted, you can also pass a third parameter to exclude them:\n\n```js\nhoistNonReactStatics(targetComponent, sourceComponent, { myStatic: true, myOtherStatic: true });\n```\n\n## What does this module do?\n\nSee this [explanation](https://facebook.github.io/react/docs/higher-order-components.html#static-methods-must-be-copied-over) from the React docs.\n\n## Compatible React Versions\n\nPlease use latest 3.x. Versions prior to 3.x will not support ForwardRefs.\n\n| hoist-non-react-statics Version | Compatible React Version |\n|--------------------------|-------------------------------|\n| 3.x | 0.13-16.x With ForwardRef Support |\n| 2.x | 0.13-16.x Without ForwardRef Support |\n| 1.x | 0.13-16.2 |\n\n## Browser Support\n\nThis package uses `Object.defineProperty` which has a broken implementation in IE8. In order to use this package in IE8, you will need a polyfill that fixes this method.\n\n## License\nThis software is free to use under the Yahoo Inc. BSD license.\nSee the [LICENSE file][] for license text and copyright information.\n\n[LICENSE file]: https://github.com/mridgway/hoist-non-react-statics/blob/master/LICENSE.md\n\nThird-party open source code used are listed in our [package.json file]( https://github.com/mridgway/hoist-non-react-statics/blob/master/package.json).\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![npm-stats][npm-stats]][npm-url]\n[![deps][deps]][deps-url]\n[![travis][travis]][travis-url]\n[![appveyor][appveyor]][appveyor-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n\n<div align=\"center\">\n <img height=\"100\"\n src=\"https://worldvectorlogo.com/logos/sass-1.svg\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\"\n src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n <h1>Sass Loader</h1>\n <p>Loads a Sass/SCSS file and compiles it to CSS.</p>\n</div>\n\nUse the [css-loader](https://github.com/webpack-contrib/css-loader) or the [raw-loader](https://github.com/webpack-contrib/raw-loader) to turn it into a JS module and the [MiniCssExtractPlugin](https://github.com/webpack-contrib/mini-css-extract-plugin) to extract it into a separate file.\nLooking for the webpack 1 loader? Check out the [archive/webpack-1 branch](https://github.com/webpack-contrib/sass-loader/tree/archive/webpack-1).\n\n<h2 align=\"center\">Install</h2>\n\n```bash\nnpm install sass-loader node-sass webpack --save-dev\n```\n\nThe sass-loader requires [webpack](https://github.com/webpack) as a\n[`peerDependency`](https://docs.npmjs.com/files/package.json#peerdependencies)\nand it requires you to install either [Node Sass][] or [Dart Sass][] on your\nown. This allows you to control the versions of all your dependencies, and to\nchoose which Sass implementation to use.\n\n[Node Sass]: https://github.com/sass/node-sass\n[Dart Sass]: http://sass-lang.com/dart-sass\n\n<h2 align=\"center\">Examples</h2>\n\nChain the sass-loader with the [css-loader](https://github.com/webpack-contrib/css-loader) and the [style-loader](https://github.com/webpack-contrib/style-loader) to immediately apply all styles to the DOM.\n\n```bash\nnpm install style-loader css-loader --save-dev\n```\n\n```js\n// webpack.config.js\nmodule.exports = {\n\t...\n module: {\n rules: [{\n test: /\\.scss$/,\n use: [\n \"style-loader\", // creates style nodes from JS strings\n \"css-loader\", // translates CSS into CommonJS\n \"sass-loader\" // compiles Sass to CSS, using Node Sass by default\n ]\n }]\n }\n};\n```\n\nYou can also pass options directly to [Node Sass][] or [Dart Sass][]:\n\n```js\n// webpack.config.js\nmodule.exports = {\n\t...\n module: {\n rules: [{\n test: /\\.scss$/,\n use: [{\n loader: \"style-loader\"\n }, {\n loader: \"css-loader\"\n }, {\n loader: \"sass-loader\",\n options: {\n includePaths: [\"absolute/path/a\", \"absolute/path/b\"]\n }\n }]\n }]\n }\n};\n```\n\nSee [the Node Sass documentation](https://github.com/sass/node-sass/blob/master/README.md#options) for all available Sass options.\n\nThe special `implementation` option determines which implementation of Sass to\nuse. It takes either a [Node Sass][] or a [Dart Sass][] module. For example, to\nuse Dart Sass, you'd pass:\n\n```js\n// ...\n {\n loader: \"sass-loader\",\n options: {\n implementation: require(\"sass\")\n }\n }\n// ...\n```\n\nNote that when using Dart Sass, **synchronous compilation is twice as fast as\nasynchronous compilation** by default, due to the overhead of asynchronous\ncallbacks. To avoid this overhead, you can use the\n[`fibers`](https://www.npmjs.com/package/fibers) package to call asynchronous\nimporters from the synchronous code path. To enable this, pass the `Fiber` class\nto the `fiber` option:\n\n```js\n// webpack.config.js\nconst Fiber = require('fibers');\n\nmodule.exports = {\n\t...\n module: {\n rules: [{\n test: /\\.scss$/,\n use: [{\n loader: \"style-loader\"\n }, {\n loader: \"css-loader\"\n }, {\n loader: \"sass-loader\",\n options: {\n implementation: require(\"sass\"),\n fiber: Fiber\n }\n }]\n }]\n }\n};\n```\n\n### In production\n\nUsually, it's recommended to extract the style sheets into a dedicated file in production using the [MiniCssExtractPlugin](https://github.com/webpack-contrib/mini-css-extract-plugin). This way your styles are not dependent on JavaScript:\n\n```js\nconst MiniCssExtractPlugin = require(\"mini-css-extract-plugin\");\n\nmodule.exports = {\n\t...\n module: {\n rules: [{\n test: /\\.scss$/,\n use: [\n // fallback to style-loader in development\n process.env.NODE_ENV !== 'production' ? 'style-loader' : MiniCssExtractPlugin.loader,\n \"css-loader\",\n \"sass-loader\"\n ]\n }]\n },\n plugins: [\n new MiniCssExtractPlugin({\n // Options similar to the same options in webpackOptions.output\n // both options are optional\n filename: \"[name].css\",\n chunkFilename: \"[id].css\"\n })\n ]\n};\n```\n\n<h2 align=\"center\">Usage</h2>\n\n### Imports\n\nwebpack provides an [advanced mechanism to resolve files](https://webpack.js.org/concepts/module-resolution/). The sass-loader uses Sass's custom importer feature to pass all queries to the webpack resolving engine. Thus you can import your Sass modules from `node_modules`. Just prepend them with a `~` to tell webpack that this is not a relative import:\n\n```css\n@import \"~bootstrap/dist/css/bootstrap\";\n```\n\nIt's important to only prepend it with `~`, because `~/` resolves to the home directory. webpack needs to distinguish between `bootstrap` and `~bootstrap` because CSS and Sass files have no special syntax for importing relative files. Writing `@import \"file\"` is the same as `@import \"./file\";`\n\n### Problems with `url(...)`\n\nSince Sass/[libsass](https://github.com/sass/libsass) does not provide [url rewriting](https://github.com/sass/libsass/issues/532), all linked assets must be relative to the output.\n\n- If you're just generating CSS without passing it to the css-loader, it must be relative to your web root.\n- If you pass the generated CSS on to the css-loader, all urls must be relative to the entry-file (e.g. `main.scss`).\n\nMore likely you will be disrupted by this second issue. It is natural to expect relative references to be resolved against the `.scss` file in which they are specified (like in regular `.css` files). Thankfully there are a two solutions to this problem:\n\n- Add the missing url rewriting using the [resolve-url-loader](https://github.com/bholloway/resolve-url-loader). Place it before the sass-loader in the loader chain.\n- Library authors usually provide a variable to modify the asset path. [bootstrap-sass](https://github.com/twbs/bootstrap-sass) for example has an `$icon-font-path`. Check out [this working bootstrap example](https://github.com/webpack-contrib/sass-loader/tree/master/test/bootstrapSass).\n\n### Extracting style sheets\n\nBundling CSS with webpack has some nice advantages like referencing images and fonts with hashed urls or [hot module replacement](https://webpack.js.org/concepts/hot-module-replacement/) in development. In production, on the other hand, it's not a good idea to apply your style sheets depending on JS execution. Rendering may be delayed or even a [FOUC](https://en.wikipedia.org/wiki/Flash_of_unstyled_content) might be visible. Thus it's often still better to have them as separate files in your final production build.\n\nThere are two possibilities to extract a style sheet from the bundle:\n\n- [extract-loader](https://github.com/peerigon/extract-loader) (simpler, but specialized on the css-loader's output)\n- [extract-text-webpack-plugin](https://github.com/webpack-contrib/extract-text-webpack-plugin) (more complex, but works in all use-cases)\n\n### Source maps\n\nTo enable CSS source maps, you'll need to pass the `sourceMap` option to the sass-loader *and* the css-loader. Your `webpack.config.js` should look like this:\n\n```javascript\nmodule.exports = {\n ...\n devtool: \"source-map\", // any \"source-map\"-like devtool is possible\n module: {\n rules: [{\n test: /\\.scss$/,\n use: [{\n loader: \"style-loader\"\n }, {\n loader: \"css-loader\", options: {\n sourceMap: true\n }\n }, {\n loader: \"sass-loader\", options: {\n sourceMap: true\n }\n }]\n }]\n }\n};\n```\n\nIf you want to edit the original Sass files inside Chrome, [there's a good blog post](https://medium.com/@toolmantim/getting-started-with-css-sourcemaps-and-in-browser-sass-editing-b4daab987fb0). Checkout [test/sourceMap](https://github.com/webpack-contrib/sass-loader/tree/master/test) for a running example.\n\n### Environment variables\n\nIf you want to prepend Sass code before the actual entry file, you can set the `data` option. In this case, the sass-loader will not override the `data` option but just append the entry's content. This is especially useful when some of your Sass variables depend on the environment:\n\n```javascript\n{\n loader: \"sass-loader\",\n options: {\n data: \"$env: \" + process.env.NODE_ENV + \";\"\n }\n}\n```\n\n**Please note:** Since you're injecting code, this will break the source mappings in your entry file. Often there's a simpler solution than this, like multiple Sass entry files.\n\n<h2 align=\"center\">Maintainers</h2>\n\n<table>\n <tr>\n <td align=\"center\">\n <a href=\"https://github.com/jhnns\"><img width=\"150\" height=\"150\" src=\"https://avatars0.githubusercontent.com/u/781746?v=3\"></a><br>\n <a href=\"https://github.com/jhnns\">Johannes Ewald</a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/webpack-contrib\"><img width=\"150\" height=\"150\" src=\"https://avatars1.githubusercontent.com/u/1243901?v=3&s=460\"></a><br>\n <a href=\"https://github.com/webpack-contrib\">Jorik Tangelder</a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/akiran\"><img width=\"150\" height=\"150\" src=\"https://avatars1.githubusercontent.com/u/3403295?v=3\"></a><br>\n <a href=\"https://github.com/akiran\">Kiran</a>\n </td>\n <tr>\n</table>\n\n<h2 align=\"center\">License</h2>\n\n[MIT](http://www.opensource.org/licenses/mit-license.php)\n\n[npm]: https://img.shields.io/npm/v/sass-loader.svg\n[npm-stats]: https://img.shields.io/npm/dm/sass-loader.svg\n[npm-url]: https://npmjs.com/package/sass-loader\n\n[node]: https://img.shields.io/node/v/sass-loader.svg\n[node-url]: https://nodejs.org\n\n[deps]: https://david-dm.org/webpack-contrib/sass-loader.svg\n[deps-url]: https://david-dm.org/webpack-contrib/sass-loader\n\n[travis]: http://img.shields.io/travis/webpack-contrib/sass-loader.svg\n[travis-url]: https://travis-ci.org/webpack-contrib/sass-loader\n\n[appveyor-url]: https://ci.appveyor.com/project/webpack-contrib/sass-loader/branch/master\n[appveyor]: https://ci.appveyor.com/api/projects/status/rqpy1vaovh20ttxs/branch/master?svg=true\n\n[cover]: https://codecov.io/gh/webpack-contrib/sass-loader/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack-contrib/sass-loader\n\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\n# URI.js\n\nURI.js is an [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt) compliant, scheme extendable URI parsing/validating/resolving library for all JavaScript environments (browsers, Node.js, etc).\nIt is also compliant with the IRI ([RFC 3987](http://www.ietf.org/rfc/rfc3987.txt)), IDNA ([RFC 5890](http://www.ietf.org/rfc/rfc5890.txt)), IPv6 Address ([RFC 5952](http://www.ietf.org/rfc/rfc5952.txt)), IPv6 Zone Identifier ([RFC 6874](http://www.ietf.org/rfc/rfc6874.txt)) specifications.\n\nURI.js has an extensive test suite, and works in all (Node.js, web) environments. It weighs in at 6.2kb (gzipped, 16kb deflated).\n\n## API\n\n### Parsing\n\n\tURI.parse(\"uri://user:pass@example.com:123/one/two.three?q1=a1&q2=a2#body\");\n\t//returns:\n\t//{\n\t// scheme : \"uri\",\n\t// userinfo : \"user:pass\",\n\t// host : \"example.com\",\n\t// port : 123,\n\t// path : \"/one/two.three\",\n\t// query : \"q1=a1&q2=a2\",\n\t// fragment : \"body\"\n\t//}\n\n### Serializing\n\n\tURI.serialize({scheme : \"http\", host : \"example.com\", fragment : \"footer\"}) === \"http://example.com/#footer\"\n\n### Resolving\n\n\tURI.resolve(\"uri://a/b/c/d?q\", \"../../g\") === \"uri://a/g\"\n\n### Normalizing\n\n\tURI.normalize(\"HTTP://ABC.com:80/%7Esmith/home.html\") === \"http://abc.com/~smith/home.html\"\n\n### Comparison\n\n\tURI.equal(\"example://a/b/c/%7Bfoo%7D\", \"eXAMPLE://a/./b/../b/%63/%7bfoo%7d\") === true\n\n### IP Support\n\n\t//IPv4 normalization\n\tURI.normalize(\"//192.068.001.000\") === \"//192.68.1.0\"\n\n\t//IPv6 normalization\n\tURI.normalize(\"//[2001:0:0DB8::0:0001]\") === \"//[2001:0:db8::1]\"\n\n\t//IPv6 zone identifier support\n\tURI.parse(\"//[2001:db8::7%25en1]\");\n\t//returns:\n\t//{\n\t// host : \"2001:db8::7%en1\"\n\t//}\n\n### IRI Support\n\n\t//convert IRI to URI\n\tURI.serialize(URI.parse(\"http://examplé.org/rosé\")) === \"http://xn--exampl-gva.org/ros%C3%A9\"\n\t//convert URI to IRI\n\tURI.serialize(URI.parse(\"http://xn--exampl-gva.org/ros%C3%A9\"), {iri:true}) === \"http://examplé.org/rosé\"\n\n### Options\n\nAll of the above functions can accept an additional options argument that is an object that can contain one or more of the following properties:\n\n*\t`scheme` (string)\n\n\tIndicates the scheme that the URI should be treated as, overriding the URI's normal scheme parsing behavior.\n\n*\t`reference` (string)\n\n\tIf set to `\"suffix\"`, it indicates that the URI is in the suffix format, and the validator will use the option's `scheme` property to determine the URI's scheme.\n\n*\t`tolerant` (boolean, false)\n\n\tIf set to `true`, the parser will relax URI resolving rules.\n\n*\t`absolutePath` (boolean, false)\n\n\tIf set to `true`, the serializer will not resolve a relative `path` component.\n\n*\t`iri` (boolean, false)\n\n\tIf set to `true`, the serializer will unescape non-ASCII characters as per [RFC 3987](http://www.ietf.org/rfc/rfc3987.txt).\n\n*\t`unicodeSupport` (boolean, false)\n\n\tIf set to `true`, the parser will unescape non-ASCII characters in the parsed output as per [RFC 3987](http://www.ietf.org/rfc/rfc3987.txt).\n\n*\t`domainHost` (boolean, false)\n\n\tIf set to `true`, the library will treat the `host` component as a domain name, and convert IDNs (International Domain Names) as per [RFC 5891](http://www.ietf.org/rfc/rfc5891.txt).\n\n## Scheme Extendable\n\nURI.js supports inserting custom [scheme](http://en.wikipedia.org/wiki/URI_scheme) dependent processing rules. Currently, URI.js has built in support for the following schemes:\n\n*\thttp \\[[RFC 2616](http://www.ietf.org/rfc/rfc2616.txt)\\]\n*\thttps \\[[RFC 2818](http://www.ietf.org/rfc/rfc2818.txt)\\]\n*\tmailto \\[[RFC 6068](http://www.ietf.org/rfc/rfc6068.txt)\\]\n*\turn \\[[RFC 2141](http://www.ietf.org/rfc/rfc2141.txt)\\]\n*\turn:uuid \\[[RFC 4122](http://www.ietf.org/rfc/rfc4122.txt)\\]\n\n### HTTP Support\n\n\tURI.equal(\"HTTP://ABC.COM:80\", \"http://abc.com/\") === true\n\n### Mailto Support\n\n\tURI.parse(\"mailto:alpha@example.com,bravo@example.com?subject=SUBSCRIBE&body=Sign%20me%20up!\");\n\t//returns:\n\t//{\n\t//\tscheme : \"mailto\",\n\t//\tto : [\"alpha@example.com\", \"bravo@example.com\"],\n\t//\tsubject : \"SUBSCRIBE\",\n\t//\tbody : \"Sign me up!\"\n\t//}\n\n\tURI.serialize({\n\t\tscheme : \"mailto\",\n\t\tto : [\"alpha@example.com\"],\n\t\tsubject : \"REMOVE\",\n\t\tbody : \"Please remove me\",\n\t\theaders : {\n\t\t\tcc : \"charlie@example.com\"\n\t\t}\n\t}) === \"mailto:alpha@example.com?cc=charlie@example.com&subject=REMOVE&body=Please%20remove%20me\"\n\n### URN Support\n\n\tURI.parse(\"urn:example:foo\");\n\t//returns:\n\t//{\n\t//\tscheme : \"urn\",\n\t//\tnid : \"example\",\n\t//\tnss : \"foo\",\n\t//}\n\n#### URN UUID Support\n\n\tURI.parse(\"urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6\");\n\t//returns:\n\t//{\n\t//\tscheme : \"urn\",\n\t//\tnid : \"example\",\n\t//\tuuid : \"f81d4fae-7dec-11d0-a765-00a0c91e6bf6\",\n\t//}\n\n## Usage\n\nTo load in a browser, use the following tag:\n\n\t<script type=\"text/javascript\" src=\"uri-js/dist/es5/uri.all.min.js\"></script>\n\nTo load in a CommonJS (Node.js) environment, first install with npm by running on the command line:\n\n\tnpm install uri-js\n\nThen, in your code, load it using:\n\n\tconst URI = require(\"uri-js\");\n\nIf you are writing your code in ES6+ (ESNEXT) or TypeScript, you would load it using:\n\n\timport * as URI from \"uri-js\";\n\nOr you can load just what you need using named exports:\n\n\timport { parse, serialize, resolve, resolveComponents, normalize, equal, removeDotSegments, pctEncChar, pctDecChars, escapeComponent, unescapeComponent } from \"uri-js\";\n\n## Breaking changes\n\n### Breaking changes from 3.x\n\nURN parsing has been completely changed to better align with the specification. Scheme is now always `urn`, but has two new properties: `nid` which contains the Namspace Identifier, and `nss` which contains the Namespace Specific String. The `nss` property will be removed by higher order scheme handlers, such as the UUID URN scheme handler.\n\nThe UUID of a URN can now be found in the `uuid` property.\n\n### Breaking changes from 2.x\n\nURI validation has been removed as it was slow, exposed a vulnerabilty, and was generally not useful.\n\n### Breaking changes from 1.x\n\nThe `errors` array on parsed components is now an `error` string.\n\n## License ([Simplified BSD](http://en.wikipedia.org/wiki/BSD_licenses#2-clause))\n\nCopyright 2011 Gary Court. All rights reserved.\n\nRedistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:\n\n1.\tRedistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.\n\n2.\tRedistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.\n\nTHIS SOFTWARE IS PROVIDED BY GARY COURT \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARY COURT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nThe views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of Gary Court.\nThis folder contains implementations of polyfills. It's not recommended to include in your projects directly if you don't completely understand what are you doing.\n# `react-dom`\n\nThis package serves as the entry point to the DOM and server renderers for React. It is intended to be paired with the generic React package, which is shipped as `react` to npm.\n\n## Installation\n\n```sh\nnpm install react react-dom\n```\n\n## Usage\n\n### In the browser\n\n```js\nvar React = require('react');\nvar ReactDOM = require('react-dom');\n\nclass MyComponent extends React.Component {\n render() {\n return <div>Hello World</div>;\n }\n}\n\nReactDOM.render(<MyComponent />, node);\n```\n\n### On the server\n\n```js\nvar React = require('react');\nvar ReactDOMServer = require('react-dom/server');\n\nclass MyComponent extends React.Component {\n render() {\n return <div>Hello World</div>;\n }\n}\n\nReactDOMServer.renderToString(<MyComponent />);\n```\n\n## API\n\n### `react-dom`\n\n- `findDOMNode`\n- `render`\n- `unmountComponentAtNode`\n\n### `react-dom/server`\n\n- `renderToString`\n- `renderToStaticMarkup`\n# Node.js releases data\n\nAll data is located in `data` directory.\n\n`data/raw` contains raw data `nodejs.json` and `iojs.json`.\n\n`data/processed` contains `envs.js` with both node.js and io.js data preprocessed to be used by [browserlist](https://github.com/ai/browserslist) and other projects. Each version in this file contains only necessary info: version, release date and optionally LTS flag.\n\n## Installation\n```bash\nnpm install --save node-releases\n```\n\n## Updating data\n```bash\nnpm run build\n```\nThis is a build script which fetches data from web, processes it and saves processed data to `data/processed/envs.json`. If you want to run this steps separately you can use commands described below.\n\n### Fetching data\n```bash\nnpm run fetch\n```\nThis npm script will download new data to `data/raw` directory. Also it'll download Node.js release schedule into `release-schedule` folder.\n\n### Processing data\n```bash\nnpm run process\n```\nThis script generates `envs.json` file from raw data files and saves it to `data/processed` directory.\n# range-parser\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nRange header field parser.\n\n## Installation\n\n```\n$ npm install range-parser\n```\n\n## API\n\n```js\nvar parseRange = require('range-parser')\n```\n\n### parseRange(size, header, options)\n\nParse the given `header` string where `size` is the maximum size of the resource.\nAn array of ranges will be returned or negative numbers indicating an error parsing.\n\n * `-2` signals a malformed header string\n * `-1` signals an unsatisfiable range\n\n```js\n// parse header from request\nvar range = parseRange(size, req.headers.range)\n\n// the type of the range\nif (range.type === 'bytes') {\n // the ranges\n range.forEach(function (r) {\n // do something with r.start and r.end\n })\n}\n```\n\n#### Options\n\nThese properties are accepted in the options object.\n\n##### combine\n\nSpecifies if overlapping & adjacent ranges should be combined, defaults to `false`.\nWhen `true`, ranges will be combined and returned as if they were specified that\nway in the header.\n\n```js\nparseRange(100, 'bytes=50-55,0-10,5-10,56-60', { combine: true })\n// => [\n// { start: 0, end: 10 },\n// { start: 50, end: 60 }\n// ]\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/range-parser.svg\n[npm-url]: https://npmjs.org/package/range-parser\n[node-version-image]: https://img.shields.io/node/v/range-parser.svg\n[node-version-url]: https://nodejs.org/endownload\n[travis-image]: https://img.shields.io/travis/jshttp/range-parser.svg\n[travis-url]: https://travis-ci.org/jshttp/range-parser\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/range-parser.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/range-parser\n[downloads-image]: https://img.shields.io/npm/dm/range-parser.svg\n[downloads-url]: https://npmjs.org/package/range-parser\n# extend-shallow [](https://www.npmjs.com/package/extend-shallow) [](https://npmjs.org/package/extend-shallow) [](https://npmjs.org/package/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save extend-shallow\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [for-in](https://www.npmjs.com/package/for-in): Iterate over the own and inherited enumerable properties of an object, and return an object… [more](https://github.com/jonschlinkert/for-in) | [homepage](https://github.com/jonschlinkert/for-in \"Iterate over the own and inherited enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js\")\n* [for-own](https://www.npmjs.com/package/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own) | [homepage](https://github.com/jonschlinkert/for-own \"Iterate over the own enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 33 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 19, 2017._\n# v8-compile-cache\n\n[](https://travis-ci.org/zertosh/v8-compile-cache)\n\n`v8-compile-cache` attaches a `require` hook to use [V8's code cache](https://v8project.blogspot.com/2015/07/code-caching.html) to speed up instantiation time. The \"code cache\" is the work of parsing and compiling done by V8.\n\nThe ability to tap into V8 to produce/consume this cache was introduced in [Node v5.7.0](https://nodejs.org/en/blog/release/v5.7.0/).\n\n## Usage\n\n1. Add the dependency:\n\n ```sh\n $ npm install --save v8-compile-cache\n ```\n\n2. Then, in your entry module add:\n\n ```js\n require('v8-compile-cache');\n ```\n\n**Requiring `v8-compile-cache` in Node <5.7.0 is a noop – but you need at least Node 4.0.0 to support the ES2015 syntax used by `v8-compile-cache`.**\n\n## Options\n\nSet the environment variable `DISABLE_V8_COMPILE_CACHE=1` to disable the cache.\n\n## Internals\n\nThe caches are stored in `$TMP/v8-compile-cache/V8_VERSION`, where there are `.BLOB` and `.MAP` files corresponding to the entry module that required `v8-compile-cache`. The cache is _entry module specific_ because it is faster to load the entire code cache into memory at once, than it is to read it from disk on a file-by-file basis.\n\n## Benchmarks\n\nSee https://github.com/zertosh/v8-compile-cache/tree/master/bench.\n\n**Load Times:**\n\n| Module | Without Cache | With Cache |\n| ---------------- | -------------:| ----------:|\n| `babel-core` | `218ms` | `185ms` |\n| `yarn` | `153ms` | `113ms` |\n| `yarn` (bundled) | `228ms` | `105ms` |\n\n_^ Includes the overhead of loading the cache itself._\n\n## Acknowledgements\n\n* `FileSystemBlobStore` and `NativeCompileCache` are based on Atom's implementation of their v8 compile cache: \n - https://github.com/atom/atom/blob/b0d7a8a/src/file-system-blob-store.js\n - https://github.com/atom/atom/blob/b0d7a8a/src/native-compile-cache.js\n* `mkdirpSync` is based on:\n - https://github.com/substack/node-mkdirp/blob/f2003bb/index.js#L55-L98\n# Regenerate [](https://travis-ci.org/mathiasbynens/regenerate) [](https://codecov.io/gh/mathiasbynens/regenerate) [](https://gemnasium.com/mathiasbynens/regenerate)\n\n_Regenerate_ is a Unicode-aware regex generator for JavaScript. It allows you to easily generate ES5-compatible regular expressions based on a given set of Unicode symbols or code points. (This is trickier than you might think, because of [how JavaScript deals with astral symbols](https://mathiasbynens.be/notes/javascript-unicode).)\n\n## Installation\n\nVia [npm](https://npmjs.org/):\n\n```bash\nnpm install regenerate\n```\n\nVia [Bower](http://bower.io/):\n\n```bash\nbower install regenerate\n```\n\nVia [Component](https://github.com/component/component):\n\n```bash\ncomponent install mathiasbynens/regenerate\n```\n\nIn a browser:\n\n```html\n<script src=\"regenerate.js\"></script>\n```\n\nIn [Node.js](https://nodejs.org/), [io.js](https://iojs.org/), and [RingoJS ≥ v0.8.0](http://ringojs.org/):\n\n```js\nvar regenerate = require('regenerate');\n```\n\nIn [Narwhal](http://narwhaljs.org/) and [RingoJS ≤ v0.7.0](http://ringojs.org/):\n\n```js\nvar regenerate = require('regenerate').regenerate;\n```\n\nIn [Rhino](http://www.mozilla.org/rhino/):\n\n```js\nload('regenerate.js');\n```\n\nUsing an AMD loader like [RequireJS](http://requirejs.org/):\n\n```js\nrequire(\n {\n 'paths': {\n 'regenerate': 'path/to/regenerate'\n }\n },\n ['regenerate'],\n function(regenerate) {\n console.log(regenerate);\n }\n);\n```\n\n## API\n\n### `regenerate(value1, value2, value3, ...)`\n\nThe main Regenerate function. Calling this function creates a new set that gets a chainable API.\n\n```js\nvar set = regenerate()\n .addRange(0x60, 0x69) // add U+0060 to U+0069\n .remove(0x62, 0x64) // remove U+0062 and U+0064\n .add(0x1D306); // add U+1D306\nset.valueOf();\n// → [0x60, 0x61, 0x63, 0x65, 0x66, 0x67, 0x68, 0x69, 0x1D306]\nset.toString();\n// → '[`ace-i]|\\\\uD834\\\\uDF06'\nset.toRegExp();\n// → /[`ace-i]|\\uD834\\uDF06/\n```\n\nAny arguments passed to `regenerate()` will be added to the set right away. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted, as well as arrays containing values of these types.\n\n```js\nregenerate(0x1D306, 'A', '©', 0x2603).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n\nvar items = [0x1D306, 'A', '©', 0x2603];\nregenerate(items).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n```\n\n### `regenerate.prototype.add(value1, value2, value3, ...)`\n\nAny arguments passed to `add()` are added to the set. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted, as well as arrays containing values of these types.\n\n```js\nregenerate().add(0x1D306, 'A', '©', 0x2603).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n\nvar items = [0x1D306, 'A', '©', 0x2603];\nregenerate().add(items).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n```\n\nIt’s also possible to pass in a Regenerate instance. Doing so adds all code points in that instance to the current set.\n\n```js\nvar set = regenerate(0x1D306, 'A');\nregenerate().add('©', 0x2603).add(set).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n```\n\nNote that the initial call to `regenerate()` acts like `add()`. This allows you to create a new Regenerate instance and add some code points to it in one go:\n\n```js\nregenerate(0x1D306, 'A', '©', 0x2603).toString();\n// → '[A\\\\xA9\\\\u2603]|\\\\uD834\\\\uDF06'\n```\n\n### `regenerate.prototype.remove(value1, value2, value3, ...)`\n\nAny arguments passed to `remove()` are removed to the set. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted, as well as arrays containing values of these types.\n\n```js\nregenerate(0x1D306, 'A', '©', 0x2603).remove('☃').toString();\n// → '[A\\\\xA9]|\\\\uD834\\\\uDF06'\n```\n\nIt’s also possible to pass in a Regenerate instance. Doing so removes all code points in that instance from the current set.\n\n```js\nvar set = regenerate('☃');\nregenerate(0x1D306, 'A', '©', 0x2603).remove(set).toString();\n// → '[A\\\\xA9]|\\\\uD834\\\\uDF06'\n```\n\n### `regenerate.prototype.addRange(start, end)`\n\nAdds a range of code points from `start` to `end` (inclusive) to the set. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted.\n\n```js\nregenerate(0x1D306).addRange(0x00, 0xFF).toString(16);\n// → '[\\\\0-\\\\xFF]|\\\\uD834\\\\uDF06'\n\nregenerate().addRange('A', 'z').toString();\n// → '[A-z]'\n```\n\n### `regenerate.prototype.removeRange(start, end)`\n\nRemoves a range of code points from `start` to `end` (inclusive) from the set. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted.\n\n```js\nregenerate()\n .addRange(0x000000, 0x10FFFF) // add all Unicode code points\n .removeRange('A', 'z') // remove all symbols from `A` to `z`\n .toString();\n// → '[\\\\0-@\\\\{-\\\\uD7FF\\\\uE000-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF](?![\\\\uDC00-\\\\uDFFF])|(?:[^\\\\uD800-\\\\uDBFF]|^)[\\\\uDC00-\\\\uDFFF]'\n\nregenerate()\n .addRange(0x000000, 0x10FFFF) // add all Unicode code points\n .removeRange(0x0041, 0x007A) // remove all code points from U+0041 to U+007A\n .toString();\n// → '[\\\\0-@\\\\{-\\\\uD7FF\\\\uE000-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF](?![\\\\uDC00-\\\\uDFFF])|(?:[^\\\\uD800-\\\\uDBFF]|^)[\\\\uDC00-\\\\uDFFF]'\n```\n\n### `regenerate.prototype.intersection(codePoints)`\n\nRemoves any code points from the set that are not present in both the set and the given `codePoints` array. `codePoints` must be an array of numeric code point values, i.e. numbers.\n\n```js\nregenerate()\n .addRange(0x00, 0xFF) // add extended ASCII code points\n .intersection([0x61, 0x69]) // remove all code points from the set except for these\n .toString();\n// → '[ai]'\n```\n\nInstead of the `codePoints` array, it’s also possible to pass in a Regenerate instance.\n\n```js\nvar whitelist = regenerate(0x61, 0x69);\n\nregenerate()\n .addRange(0x00, 0xFF) // add extended ASCII code points\n .intersection(whitelist) // remove all code points from the set except for those in the `whitelist` set\n .toString();\n// → '[ai]'\n```\n\n### `regenerate.prototype.contains(value)`\n\nReturns `true` if the given value is part of the set, and `false` otherwise. Both code points (numbers) and symbols (strings consisting of a single Unicode symbol) are accepted.\n\n```js\nvar set = regenerate().addRange(0x00, 0xFF);\nset.contains('A');\n// → true\nset.contains(0x1D306);\n// → false\n```\n\n### `regenerate.prototype.clone()`\n\nReturns a clone of the current code point set. Any actions performed on the clone won’t mutate the original set.\n\n```js\nvar setA = regenerate(0x1D306);\nvar setB = setA.clone().add(0x1F4A9);\nsetA.toArray();\n// → [0x1D306]\nsetB.toArray();\n// → [0x1D306, 0x1F4A9]\n```\n\n### `regenerate.prototype.toString(options)`\n\nReturns a string representing (part of) a regular expression that matches all the symbols mapped to the code points within the set.\n\n```js\nregenerate(0x1D306, 0x1F4A9).toString();\n// → '\\\\uD834\\\\uDF06|\\\\uD83D\\\\uDCA9'\n```\n\nIf the `bmpOnly` property of the optional `options` object is set to `true`, the output matches surrogates individually, regardless of whether they’re lone surrogates or just part of a surrogate pair. This simplifies the output, but it can only be used in case you’re certain the strings it will be used on don’t contain any astral symbols.\n\n```js\nvar highSurrogates = regenerate().addRange(0xD800, 0xDBFF);\nhighSurrogates.toString();\n// → '[\\\\uD800-\\\\uDBFF](?![\\\\uDC00-\\\\uDFFF])'\nhighSurrogates.toString({ 'bmpOnly': true });\n// → '[\\\\uD800-\\\\uDBFF]'\n\nvar lowSurrogates = regenerate().addRange(0xDC00, 0xDFFF);\nlowSurrogates.toString();\n// → '(?:[^\\\\uD800-\\\\uDBFF]|^)[\\\\uDC00-\\\\uDFFF]'\nlowSurrogates.toString({ 'bmpOnly': true });\n// → '[\\\\uDC00-\\\\uDFFF]'\n```\n\nNote that lone low surrogates cannot be matched accurately using regular expressions in JavaScript. Regenerate’s output makes a best-effort approach but [there can be false negatives in this regard](https://github.com/mathiasbynens/regenerate/issues/28#issuecomment-72224808).\n\nIf the `hasUnicodeFlag` property of the optional `options` object is set to `true`, the output makes use of Unicode code point escapes (`\\u{…}`) where applicable. This simplifies the output at the cost of compatibility and portability, since it means the output can only be used as a pattern in a regular expression with [the ES6 `u` flag](https://mathiasbynens.be/notes/es6-unicode-regex) enabled.\n\n```js\nvar set = regenerate().addRange(0x0, 0x10FFFF);\n\nset.toString();\n// → '[\\\\0-\\\\uD7FF\\\\uE000-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF](?![\\\\uDC00-\\\\uDFFF])|(?:[^\\\\uD800-\\\\uDBFF]|^)[\\\\uDC00-\\\\uDFFF]''\n\nset.toString({ 'hasUnicodeFlag': true });\n// → '[\\\\0-\\\\u{10FFFF}]'\n```\n\n### `regenerate.prototype.toRegExp(flags = '')`\n\nReturns a regular expression that matches all the symbols mapped to the code points within the set. Optionally, you can pass [flags](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Parameters) to be added to the regular expression.\n\n```js\nvar regex = regenerate(0x1D306, 0x1F4A9).toRegExp();\n// → /\\uD834\\uDF06|\\uD83D\\uDCA9/\nregex.test('𝌆');\n// → true\nregex.test('A');\n// → false\n\n// With flags:\nvar regex = regenerate(0x1D306, 0x1F4A9).toRegExp('g');\n// → /\\uD834\\uDF06|\\uD83D\\uDCA9/g\n```\n\n**Note:** This probably shouldn’t be used. Regenerate is intended as a tool that is used as part of a build process, not at runtime.\n\n### `regenerate.prototype.valueOf()` or `regenerate.prototype.toArray()`\n\nReturns a sorted array of unique code points in the set.\n\n```js\nregenerate(0x1D306)\n .addRange(0x60, 0x65)\n .add(0x59, 0x60) // note: 0x59 is added after 0x65, and 0x60 is a duplicate\n .valueOf();\n// → [0x59, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x1D306]\n```\n\n### `regenerate.version`\n\nA string representing the semantic version number.\n\n## Combine Regenerate with other libraries\n\nRegenerate gets even better when combined with other libraries such as [Punycode.js](https://mths.be/punycode). Here’s an example where [Punycode.js](https://mths.be/punycode) is used to convert a string into an array of code points, that is then passed on to Regenerate:\n\n```js\nvar regenerate = require('regenerate');\nvar punycode = require('punycode');\n\nvar string = 'Lorem ipsum dolor sit amet.';\n// Get an array of all code points used in the string:\nvar codePoints = punycode.ucs2.decode(string);\n\n// Generate a regular expression that matches any of the symbols used in the string:\nregenerate(codePoints).toString();\n// → '[ \\\\.Ladeilmopr-u]'\n```\n\nIn ES6 you can do something similar with [`Array.from`](https://mths.be/array-from) which uses [the string’s iterator](https://mathiasbynens.be/notes/javascript-unicode#iterating-over-symbols) to split the given string into an array of strings that each contain a single symbol. [`regenerate()`](#regenerateprototypeaddvalue1-value2-value3-) accepts both strings and code points, remember?\n\n```js\nvar regenerate = require('regenerate');\n\nvar string = 'Lorem ipsum dolor sit amet.';\n// Get an array of all symbols used in the string:\nvar symbols = Array.from(string);\n\n// Generate a regular expression that matches any of the symbols used in the string:\nregenerate(symbols).toString();\n// → '[ \\\\.Ladeilmopr-u]'\n```\n\n## Support\n\nRegenerate supports at least Chrome 27+, Firefox 3+, Safari 4+, Opera 10+, IE 6+, Node.js v0.10.0+, io.js v1.0.0+, Narwhal 0.3.2+, RingoJS 0.8+, PhantomJS 1.9.0+, and Rhino 1.7RC4+.\n\n## Unit tests & code coverage\n\nAfter cloning this repository, run `npm install` to install the dependencies needed for Regenerate development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.\n\nOnce that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`.\n\nTo generate the code coverage report, use `grunt cover`.\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\nRegenerate is available under the [MIT](https://mths.be/mit) license.\n# color-convert\n\n[](https://travis-ci.org/Qix-/color-convert)\n\nColor-convert is a color conversion library for JavaScript and node.\nIt converts all ways between `rgb`, `hsl`, `hsv`, `hwb`, `cmyk`, `ansi`, `ansi16`, `hex` strings, and CSS `keyword`s (will round to closest):\n\n```js\nvar convert = require('color-convert');\n\nconvert.rgb.hsl(140, 200, 100); // [96, 48, 59]\nconvert.keyword.rgb('blue'); // [0, 0, 255]\n\nvar rgbChannels = convert.rgb.channels; // 3\nvar cmykChannels = convert.cmyk.channels; // 4\nvar ansiChannels = convert.ansi16.channels; // 1\n```\n\n# Install\n\n```console\n$ npm install color-convert\n```\n\n# API\n\nSimply get the property of the _from_ and _to_ conversion that you're looking for.\n\nAll functions have a rounded and unrounded variant. By default, return values are rounded. To get the unrounded (raw) results, simply tack on `.raw` to the function.\n\nAll 'from' functions have a hidden property called `.channels` that indicates the number of channels the function expects (not including alpha).\n\n```js\nvar convert = require('color-convert');\n\n// Hex to LAB\nconvert.hex.lab('DEADBF'); // [ 76, 21, -2 ]\nconvert.hex.lab.raw('DEADBF'); // [ 75.56213190997677, 20.653827952644754, -2.290532499330533 ]\n\n// RGB to CMYK\nconvert.rgb.cmyk(167, 255, 4); // [ 35, 0, 98, 0 ]\nconvert.rgb.cmyk.raw(167, 255, 4); // [ 34.509803921568626, 0, 98.43137254901961, 0 ]\n```\n\n### Arrays\nAll functions that accept multiple arguments also support passing an array.\n\nNote that this does **not** apply to functions that convert from a color that only requires one value (e.g. `keyword`, `ansi256`, `hex`, etc.)\n\n```js\nvar convert = require('color-convert');\n\nconvert.rgb.hex(123, 45, 67); // '7B2D43'\nconvert.rgb.hex([123, 45, 67]); // '7B2D43'\n```\n\n## Routing\n\nConversions that don't have an _explicitly_ defined conversion (in [conversions.js](conversions.js)), but can be converted by means of sub-conversions (e.g. XYZ -> **RGB** -> CMYK), are automatically routed together. This allows just about any color model supported by `color-convert` to be converted to any other model, so long as a sub-conversion path exists. This is also true for conversions requiring more than one step in between (e.g. LCH -> **LAB** -> **XYZ** -> **RGB** -> Hex).\n\nKeep in mind that extensive conversions _may_ result in a loss of precision, and exist only to be complete. For a list of \"direct\" (single-step) conversions, see [conversions.js](conversions.js).\n\n# Contribute\n\nIf there is a new model you would like to support, or want to add a direct conversion between two existing models, please send us a pull request.\n\n# License\nCopyright © 2011-2016, Heather Arthur and Josh Junon. Licensed under the [MIT License](LICENSE).\n# min-document\n\n[![build status][1]][2] [![dependency status][3]][4]\n\n<!-- [![browser support][5]][6] -->\n\nA minimal DOM implementation\n\n## Example\n\n```js\nvar document = require(\"min-document\")\n\nvar div = document.createElement(\"div\")\ndiv.className = \"foo bar\"\n\nvar span = document.createElement(\"span\")\ndiv.appendChild(span)\nspan.textContent = \"Hello!\"\n\n/* <div class=\"foo bar\">\n <span>Hello!</span>\n </div>\n*/\nvar html = String(div)\n```\n\n## Installation\n\n`npm install min-document`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [1]: https://secure.travis-ci.org/Raynos/min-document.png\n [2]: https://travis-ci.org/Raynos/min-document\n [3]: https://david-dm.org/Raynos/min-document.png\n [4]: https://david-dm.org/Raynos/min-document\n [5]: https://ci.testling.com/Raynos/min-document.png\n [6]: https://ci.testling.com/Raynos/min-document\n# normalize-path [](https://www.npmjs.com/package/normalize-path) [](https://npmjs.org/package/normalize-path) [](https://npmjs.org/package/normalize-path) [](https://travis-ci.org/jonschlinkert/normalize-path)\n\n> Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save normalize-path\n```\n\n## Usage\n\n```js\nconst normalize = require('normalize-path');\n\nconsole.log(normalize('\\\\foo\\\\bar\\\\baz\\\\')); \n//=> '/foo/bar/baz'\n```\n\n**win32 namespaces**\n\n```js\nconsole.log(normalize('\\\\\\\\?\\\\UNC\\\\Server01\\\\user\\\\docs\\\\Letter.txt')); \n//=> '//?/UNC/Server01/user/docs/Letter.txt'\n\nconsole.log(normalize('\\\\\\\\.\\\\CdRomX')); \n//=> '//./CdRomX'\n```\n\n**Consecutive slashes**\n\nCondenses multiple consecutive forward slashes (except for leading slashes in win32 namespaces) to a single slash.\n\n```js\nconsole.log(normalize('.//foo//bar///////baz/')); \n//=> './foo/bar/baz'\n```\n\n### Trailing slashes\n\nBy default trailing slashes are removed. Pass `false` as the last argument to disable this behavior and _**keep** trailing slashes_:\n\n```js\nconsole.log(normalize('foo\\\\bar\\\\baz\\\\', false)); //=> 'foo/bar/baz/'\nconsole.log(normalize('./foo/bar/baz/', false)); //=> './foo/bar/baz/'\n```\n\n## Release history\n\n### v3.0\n\nNo breaking changes in this release.\n\n* a check was added to ensure that [win32 namespaces](https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces) are handled properly by win32 `path.parse()` after a path has been normalized by this library.\n* a minor optimization was made to simplify how the trailing separator was handled\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nOther useful path-related libraries:\n\n* [contains-path](https://www.npmjs.com/package/contains-path): Return true if a file path contains the given path. | [homepage](https://github.com/jonschlinkert/contains-path \"Return true if a file path contains the given path.\")\n* [is-absolute](https://www.npmjs.com/package/is-absolute): Returns true if a file path is absolute. Does not rely on the path module… [more](https://github.com/jonschlinkert/is-absolute) | [homepage](https://github.com/jonschlinkert/is-absolute \"Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`.\")\n* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative \"Returns `true` if the path appears to be relative.\")\n* [parse-filepath](https://www.npmjs.com/package/parse-filepath): Pollyfill for node.js `path.parse`, parses a filepath into an object. | [homepage](https://github.com/jonschlinkert/parse-filepath \"Pollyfill for node.js `path.parse`, parses a filepath into an object.\")\n* [path-ends-with](https://www.npmjs.com/package/path-ends-with): Return `true` if a file path ends with the given string/suffix. | [homepage](https://github.com/jonschlinkert/path-ends-with \"Return `true` if a file path ends with the given string/suffix.\")\n* [unixify](https://www.npmjs.com/package/unixify): Convert Windows file paths to unix paths. | [homepage](https://github.com/jonschlinkert/unixify \"Convert Windows file paths to unix paths.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 35 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [phated](https://github.com/phated) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)\n* [GitHub Profile](https://github.com/jonschlinkert)\n* [Twitter Profile](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on April 19, 2018._\n# source-list-map\n\n## API\n\n### Example\n\n``` js\nvar SourceListMap = require(\"source-list-map\").SourceListMap;\n\n// Create a new map\nvar map = new SourceListMap();\n\n// Add generated code that is map line to line to some soure\nmap.add(\"Generated\\ncode1\\n\", \"source-code.js\", \"Orginal\\nsource\");\n\n// Add generated code that isn't mapped\nmap.add(\"Generated\\ncode2\\n\");\n\n// Get SourceMap and generated source\nmap.toStringWithSourceMap({ file: \"generated-code.js\" });\n// {\n// source: 'Generated\\ncode1\\nGenerated\\ncode2\\n',\n// map: {\n// version: 3,\n// file: 'generated-code.js',\n// sources: [ 'source-code.js' ],\n// sourcesContent: [ 'Orginal\\nsource' ],\n// mappings: 'AAAA;AACA;;;'\n// }\n// }\n\n// Convert existing SourceMap into SourceListMap\n// (Only the first mapping per line is preserved)\nvar fromStringWithSourceMap = require(\"source-list-map\").fromStringWithSourceMap;\nvar map = fromStringWithSourceMap(\"Generated\\ncode\", { version: 3, ... });\n\n```\n\n### `new SourceListMap()`\n\n### `SourceListMap.prototype.add`\n\n``` js\nSourceListMap.prototype.add(generatedCode: string)\nSourceListMap.prototype.add(generatedCode: string, source: string, originalSource: string)\nSourceListMap.prototype.add(sourceListMap: SourceListMap)\n```\n\nAppend some stuff.\n\n### `SourceListMap.prototype.prepend`\n\n``` js\nSourceListMap.prototype.prepend(generatedCode: string)\nSourceListMap.prototype.prepend(generatedCode: string, source: string, originalSource: string)\nSourceListMap.prototype.prepend(sourceListMap: SourceListMap)\n```\n\nPrepend some stuff.\n\n### `SourceListMap.prototype.toString()`\n\nGet generated code.\n\n### `SourceListMap.prototype.toStringWithSourceMap`\n\n``` js\nSourceListMap.prototype.toStringWithSourceMap(options: object)\n```\n\nGet generated code and SourceMap. `options` can contains `file` property which defines the `file` property of the SourceMap.\n\n### `SourceListMap.prototype.mapGeneratedCode`\n\n``` js\nSourceListMap.prototype.mapGeneratedCode(fn: function) : SourceListMap\n```\n\nApplies `fn` to each generated code block (per line). The returned value is set as new generated code. Returns a new SourceListMap.\n\nRemoving and adding lines is supported. The SourceMap complexity will increase when doing this.\n\n## Test\n\n[](https://travis-ci.org/webpack/source-list-map)\n\n## License\n\nCopyright (c) 2017 JS Foundation\n\nMIT (http://www.opensource.org/licenses/mit-license.php)\nin-publish\n==========\n\nDetect if we were run as a result of `npm publish`. This is intended to allow you to\neasily have prepublish lifecycle scripts that don't run when you run `npm install`.\n\n```\n$ npm install --save in-publish\nin-publish@1.0.0 node_modules/in-publish\n```\n\nThen edit your package.json to have:\n\n```json\n \"scripts\": {\n \"prepublish\": \"in-publish && thing-I-dont-want-on-dev-install || not-in-publish\"\n }\n```\n\nNow when you run:\n\n```\n$ npm install\n```\nThen `thing-I-dont-want-on-dev-install` won't be run, but...\n\n```\n$ npm publish\n```\nAnd `thing-I-dont-want-on-dev-install` will be run.\n\nIt's worth noting that the `prepublish` lifecycle is _ALSO_ called when you build a tarball, so:\n\n```\n$ npm pack\n```\n\nWill call your `prepublish` lifecycle, but with the examplea above,\n`thing-I-dont-want-on-dev-install` won't be run.\n\nIf you want this, you can use another helper included here:\n\n```json\n \"scripts\": {\n \"prepublish\": \"not-in-install && thing-I-dont-want-on-dev-install || in-install\"\n }\n```\n\nThe above will run your `thing-I-dont-want-on-dev-install` on `publish` and\non `pack` but not on `install`.\n# on-headers\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nExecute a listener when a response is about to write headers.\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install on-headers\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar onHeaders = require('on-headers')\n```\n\n### onHeaders(res, listener)\n\nThis will add the listener `listener` to fire when headers are emitted for `res`.\nThe listener is passed the `response` object as it's context (`this`). Headers are\nconsidered to be emitted only once, right before they are sent to the client.\n\nWhen this is called multiple times on the same `res`, the `listener`s are fired\nin the reverse order they were added.\n\n## Examples\n\n```js\nvar http = require('http')\nvar onHeaders = require('on-headers')\n\nhttp\n .createServer(onRequest)\n .listen(3000)\n\nfunction addPoweredBy () {\n // set if not set by end of request\n if (!this.getHeader('X-Powered-By')) {\n this.setHeader('X-Powered-By', 'Node.js')\n }\n}\n\nfunction onRequest (req, res) {\n onHeaders(res, addPoweredBy)\n\n res.setHeader('Content-Type', 'text/plain')\n res.end('hello!')\n}\n```\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## License\n\n[MIT](LICENSE)\n\n[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/on-headers/master\n[coveralls-url]: https://coveralls.io/r/jshttp/on-headers?branch=master\n[node-version-image]: https://badgen.net/npm/node/on-headers\n[node-version-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/on-headers\n[npm-url]: https://npmjs.org/package/on-headers\n[npm-version-image]: https://badgen.net/npm/v/on-headers\n[travis-image]: https://badgen.net/travis/jshttp/on-headers/master\n[travis-url]: https://travis-ci.org/jshttp/on-headers\n# Source Map\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\nThis library is written in the Asynchronous Module Definition format, and works\nin the following environments:\n\n* Modern Browsers supporting ECMAScript 5 (either after the build, or with an\n AMD loader such as RequireJS)\n\n* Inside Firefox (as a JSM file, after the build)\n\n* With NodeJS versions 0.8.X and higher\n\n## Node\n\n $ npm install source-map\n\n## Building from Source (for everywhere else)\n\nInstall Node and then run\n\n $ git clone https://fitzgen@github.com/mozilla/source-map.git\n $ cd source-map\n $ npm link .\n\nNext, run\n\n $ node Makefile.dryice.js\n\nThis should spew a bunch of stuff to stdout, and create the following files:\n\n* `dist/source-map.js` - The unminified browser version.\n\n* `dist/source-map.min.js` - The minified browser version.\n\n* `dist/SourceMap.jsm` - The JavaScript Module for inclusion in Firefox source.\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// NodeJS\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nlet sourceMap = {};\nComponents.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referrenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source.\n\n* `column`: The column number in the generated source.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available.\n\n* `column`: The column number in the original source, or null or null if this\n information is not available.\n\n* `name`: The original identifier, or null if this information is not available.\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source.\n\n* `column`: The column number in the original source.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null.\n\n* `column`: The column number in the generated source, or null.\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source.\n\n* `column`: Optional. The column number in the original source.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null.\n\n* `column`: The column number in the generated source, or null.\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then `smc.sourceContentFor(s)`\nwill succeed for every source `s` in `smc.sources`.\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new SourceMapGenerator based on a SourceMapConsumer\n\n* `sourceMapConsumer` The SourceMap.\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimium of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming whitespace from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n## Tests\n\n[](https://travis-ci.org/mozilla/source-map)\n\nInstall NodeJS version 0.8.0 or greater, then run `node test/run-tests.js`.\n\nTo add new tests, create a new file named `test/test-<your new test name>.js`\nand export your test functions with names that start with \"test\", for example\n\n```js\nexports[\"test doing the foo bar\"] = function (assert, util) {\n ...\n};\n```\n\nThe new test will be located automatically when you run the suite.\n\nThe `util` argument is the test utility module located at `test/source-map/util`.\n\nThe `assert` argument is a cut down version of node's assert module. You have\naccess to the following assertion functions:\n\n* `doesNotThrow`\n\n* `equal`\n\n* `ok`\n\n* `strictEqual`\n\n* `throws`\n\n(The reason for the restricted set of test functions is because we need the\ntests to run inside Firefox's test suite as well and so the assert module is\nshimmed in that environment. See `build/assert-shim.js`.)\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n[feature]: https://wiki.mozilla.org/DevTools/Features/SourceMap\n[Dryice]: https://github.com/mozilla/dryice\n# `react`\n\nReact is a JavaScript library for creating user interfaces.\n\nThe `react` package contains only the functionality necessary to define React components. It is typically used together with a React renderer like `react-dom` for the web, or `react-native` for the native environments.\n\n**Note:** by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the [production build](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build) when deploying your application.\n\n## Example Usage\n\n```js\nvar React = require('react');\n```\n# yargs-parser\n\n[](https://travis-ci.org/yargs/yargs-parser)\n[](https://coveralls.io/r/yargs/yargs-parser?branch=master)\n[](https://www.npmjs.com/package/yargs-parser)\n[](https://github.com/conventional-changelog/standard-version)\n\nThe mighty option parser used by [yargs](https://github.com/yargs/yargs).\n\nvisit the [yargs website](http://yargs.js.org/) for more examples, and thorough usage instructions.\n\n<img width=\"250\" src=\"https://raw.githubusercontent.com/yargs/yargs-parser/master/yargs-logo.png\">\n\n## Example\n\n```sh\nnpm i yargs-parser --save\n```\n\n```js\nvar argv = require('yargs-parser')(process.argv.slice(2))\nconsole.log(argv)\n```\n\n```sh\nnode example.js --foo=33 --bar hello\n{ _: [], foo: 33, bar: 'hello' }\n```\n\n_or parse a string!_\n\n```js\nvar argv = require('./')('--foo=99 --bar=33')\nconsole.log(argv)\n```\n\n```sh\n{ _: [], foo: 99, bar: 33 }\n```\n\nConvert an array of mixed types before passing to `yargs-parser`:\n\n```js\nvar parse = require('yargs-parser')\nparse(['-f', 11, '--zoom', 55].join(' ')) // <-- array to string\nparse(['-f', 11, '--zoom', 55].map(String)) // <-- array of strings\n```\n\n## API\n\n### require('yargs-parser')(args, opts={})\n\nParses command line arguments returning a simple mapping of keys and values.\n\n**expects:**\n\n* `args`: a string or array of strings representing the options to parse.\n* `opts`: provide a set of hints indicating how `args` should be parsed:\n * `opts.alias`: an object representing the set of aliases for a key: `{alias: {foo: ['f']}}`.\n * `opts.array`: indicate that keys should be parsed as an array: `{array: ['foo', 'bar']}`.\n Indicate that keys should be parsed as an array and coerced to booleans / numbers:\n `{array: [{ key: 'foo', boolean: true }, {key: 'bar', number: true}]}`.\n * `opts.boolean`: arguments should be parsed as booleans: `{boolean: ['x', 'y']}`.\n * `opts.config`: indicate a key that represents a path to a configuration file (this file will be loaded and parsed).\n * `opts.coerce`: provide a custom synchronous function that returns a coerced value from the argument provided\n (or throws an error), e.g. `{coerce: {foo: function (arg) {return modifiedArg}}}`.\n * `opts.count`: indicate a key that should be used as a counter, e.g., `-vvv` = `{v: 3}`.\n * `opts.default`: provide default values for keys: `{default: {x: 33, y: 'hello world!'}}`.\n * `opts.envPrefix`: environment variables (`process.env`) with the prefix provided should be parsed.\n * `opts.narg`: specify that a key requires `n` arguments: `{narg: {x: 2}}`.\n * `opts.normalize`: `path.normalize()` will be applied to values set to this key.\n * `opts.string`: keys should be treated as strings (even if they resemble a number `-x 33`).\n * `opts.configuration`: provide configuration options to the yargs-parser (see: [configuration](#configuration)).\n * `opts.number`: keys should be treated as numbers.\n * `opts['--']`: arguments after the end-of-options flag `--` will be set to the `argv.['--']` array instead of being set to the `argv._` array.\n\n**returns:**\n\n* `obj`: an object representing the parsed value of `args`\n * `key/value`: key value pairs for each argument and their aliases.\n * `_`: an array representing the positional arguments.\n * [optional] `--`: an array with arguments after the end-of-options flag `--`.\n\n### require('yargs-parser').detailed(args, opts={})\n\nParses a command line string, returning detailed information required by the\nyargs engine.\n\n**expects:**\n\n* `args`: a string or array of strings representing options to parse.\n* `opts`: provide a set of hints indicating how `args`, inputs are identical to `require('yargs-parser')(args, opts={})`.\n\n**returns:**\n\n* `argv`: an object representing the parsed value of `args`\n * `key/value`: key value pairs for each argument and their aliases.\n * `_`: an array representing the positional arguments.\n* `error`: populated with an error object if an exception occurred during parsing.\n* `aliases`: the inferred list of aliases built by combining lists in `opts.alias`.\n* `newAliases`: any new aliases added via camel-case expansion.\n* `configuration`: the configuration loaded from the `yargs` stanza in package.json.\n\n<a name=\"configuration\"></a>\n\n### Configuration\n\nThe yargs-parser applies several automated transformations on the keys provided\nin `args`. These features can be turned on and off using the `configuration` field\nof `opts`.\n\n```js\nvar parsed = parser(['--no-dice'], {\n configuration: {\n 'boolean-negation': false\n }\n})\n```\n\n### short option groups\n\n* default: `true`.\n* key: `short-option-groups`.\n\nShould a group of short-options be treated as boolean flags?\n\n```sh\nnode example.js -abc\n{ _: [], a: true, b: true, c: true }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -abc\n{ _: [], abc: true }\n```\n\n### camel-case expansion\n\n* default: `true`.\n* key: `camel-case-expansion`.\n\nShould hyphenated arguments be expanded into camel-case aliases?\n\n```sh\nnode example.js --foo-bar\n{ _: [], 'foo-bar': true, fooBar: true }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo-bar\n{ _: [], 'foo-bar': true }\n```\n\n### dot-notation\n\n* default: `true`\n* key: `dot-notation`\n\nShould keys that contain `.` be treated as objects?\n\n```sh\nnode example.js --foo.bar\n{ _: [], foo: { bar: true } }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo.bar\n{ _: [], \"foo.bar\": true }\n```\n\n### parse numbers\n\n* default: `true`\n* key: `parse-numbers`\n\nShould keys that look like numbers be treated as such?\n\n```sh\nnode example.js --foo=99.3\n{ _: [], foo: 99.3 }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo=99.3\n{ _: [], foo: \"99.3\" }\n```\n\n### boolean negation\n\n* default: `true`\n* key: `boolean-negation`\n\nShould variables prefixed with `--no` be treated as negations?\n\n```sh\nnode example.js --no-foo\n{ _: [], foo: false }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --no-foo\n{ _: [], \"no-foo\": true }\n```\n\n### combine arrays\n\n* default: `false`\n* key: `combine-arrays`\n\nShould arrays be combined when provided by both command line arguments and\na configuration file.\n\n### duplicate arguments array\n\n* default: `true`\n* key: `duplicate-arguments-array`\n\nShould arguments be coerced into an array when duplicated:\n\n```sh\nnode example.js -x 1 -x 2\n{ _: [], x: [1, 2] }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -x 1 -x 2\n{ _: [], x: 2 }\n```\n\n### flatten duplicate arrays\n\n* default: `true`\n* key: `flatten-duplicate-arrays`\n\nShould array arguments be coerced into a single array when duplicated:\n\n```sh\nnode example.js -x 1 2 -x 3 4\n{ _: [], x: [1, 2, 3, 4] }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -x 1 2 -x 3 4\n{ _: [], x: [[1, 2], [3, 4]] }\n```\n\n### negation prefix\n\n* default: `no-`\n* key: `negation-prefix`\n\nThe prefix to use for negated boolean variables.\n\n```sh\nnode example.js --no-foo\n{ _: [], foo: false }\n```\n\n_if set to `quux`:_\n\n```sh\nnode example.js --quuxfoo\n{ _: [], foo: false }\n```\n\n### populate --\n\n* default: `false`.\n* key: `populate--`\n\nShould unparsed flags be stored in `--` or `_`.\n\n_If disabled:_\n\n```sh\nnode example.js a -b -- x y\n{ _: [ 'a', 'x', 'y' ], b: true }\n```\n\n_If enabled:_\n\n```sh\nnode example.js a -b -- x y\n{ _: [ 'a' ], '--': [ 'x', 'y' ], b: true }\n```\n\n### set placeholder key\n\n* default: `false`.\n* key: `set-placeholder-key`.\n\nShould a placeholder be added for keys not set via the corresponding CLI argument?\n\n_If disabled:_\n\n```sh\nnode example.js -a 1 -c 2\n{ _: [], a: 1, c: 2 }\n```\n\n_If enabled:_\n\n```sh\nnode example.js -a 1 -c 2\n{ _: [], a: 1, b: undefined, c: 2 }\n```\n\n### halt at non-option\n\n* default: `false`.\n* key: `halt-at-non-option`.\n\nShould parsing stop at the first text argument? This is similar to how e.g. `ssh` parses its command line.\n\n_If disabled:_\n\n```sh\nnode example.js -a run b -x y\n{ _: [ 'run', 'b', 'y' ], a: true, x: true }\n```\n\n_If enabled:_\n\n```sh\nnode example.js -a run b -x y\n{ _: [ 'run', 'b', '-x', 'y' ], a: true }\n```\n\n## Special Thanks\n\nThe yargs project evolves from optimist and minimist. It owes its\nexistence to a lot of James Halliday's hard work. Thanks [substack](https://github.com/substack) **beep** **boop** \\o/\n\n## License\n\nISC\n# node-http-signature\n\nnode-http-signature is a node.js library that has client and server components\nfor Joyent's [HTTP Signature Scheme](http_signing.md).\n\n## Usage\n\nNote the example below signs a request with the same key/cert used to start an\nHTTP server. This is almost certainly not what you actually want, but is just\nused to illustrate the API calls; you will need to provide your own key\nmanagement in addition to this library.\n\n### Client\n\n```js\nvar fs = require('fs');\nvar https = require('https');\nvar httpSignature = require('http-signature');\n\nvar key = fs.readFileSync('./key.pem', 'ascii');\n\nvar options = {\n host: 'localhost',\n port: 8443,\n path: '/',\n method: 'GET',\n headers: {}\n};\n\n// Adds a 'Date' header in, signs it, and adds the\n// 'Authorization' header in.\nvar req = https.request(options, function(res) {\n console.log(res.statusCode);\n});\n\nhttpSignature.sign(req, {\n key: key,\n keyId: './cert.pem'\n});\n\nreq.end();\n```\n\n### Server\n\n```js\nvar fs = require('fs');\nvar https = require('https');\nvar httpSignature = require('http-signature');\n\nvar options = {\n key: fs.readFileSync('./key.pem'),\n cert: fs.readFileSync('./cert.pem')\n};\n\nhttps.createServer(options, function (req, res) {\n var rc = 200;\n var parsed = httpSignature.parseRequest(req);\n var pub = fs.readFileSync(parsed.keyId, 'ascii');\n if (!httpSignature.verifySignature(parsed, pub))\n rc = 401;\n\n res.writeHead(rc);\n res.end();\n}).listen(8443);\n```\n\n## Installation\n\n npm install http-signature\n\n## License\n\nMIT.\n\n## Bugs\n\nSee <https://github.com/joyent/node-http-signature/issues>.\n# Polyfill for `Object.setPrototypeOf`\n\nA simple cross platform implementation to set the prototype of an instianted object. Supports all modern browsers and at least back to IE8.\n\n## Usage:\n\n```\n$ npm install --save setprototypeof\n```\n\n```javascript\nvar setPrototypeOf = require('setprototypeof');\n\nvar obj = {};\nsetPrototypeOf(obj, {\n\tfoo: function() {\n\t\treturn 'bar';\n\t}\n});\nobj.foo(); // bar\n```\n\nTypeScript is also supported:\n```typescript\nimport setPrototypeOf = require('setprototypeof');\n```\nare-we-there-yet\n----------------\n\nTrack complex hiearchies of asynchronous task completion statuses. This is\nintended to give you a way of recording and reporting the progress of the big\nrecursive fan-out and gather type workflows that are so common in async.\n\nWhat you do with this completion data is up to you, but the most common use case is to\nfeed it to one of the many progress bar modules.\n\nMost progress bar modules include a rudamentary version of this, but my\nneeds were more complex.\n\nUsage\n=====\n\n```javascript\nvar TrackerGroup = require(\"are-we-there-yet\").TrackerGroup\n\nvar top = new TrackerGroup(\"program\")\n\nvar single = top.newItem(\"one thing\", 100)\nsingle.completeWork(20)\n\nconsole.log(top.completed()) // 0.2\n\nfs.stat(\"file\", function(er, stat) {\n if (er) throw er \n var stream = top.newStream(\"file\", stat.size)\n console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete\n // and 50% * 20% == 10%\n fs.createReadStream(\"file\").pipe(stream).on(\"data\", function (chunk) {\n // do stuff with chunk\n })\n top.on(\"change\", function (name) {\n // called each time a chunk is read from \"file\"\n // top.completed() will start at 0.1 and fill up to 0.6 as the file is read\n })\n})\n```\n\nShared Methods\n==============\n\n* var completed = tracker.completed()\n\nImplemented in: `Tracker`, `TrackerGroup`, `TrackerStream`\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1.\n\n* tracker.finish()\n\nImplemented in: `Tracker`, `TrackerGroup`\n\nMarks the tracker as completed. With a TrackerGroup this marks all of its\ncomponents as completed.\n\nMarks all of the components of this tracker as finished, which in turn means\nthat `tracker.completed()` for this will now be 1.\n\nThis will result in one or more `change` events being emitted.\n\nEvents\n======\n\nAll tracker objects emit `change` events with the following arguments:\n\n```\nfunction (name, completed, tracker)\n```\n\n`name` is the name of the tracker that originally emitted the event,\nor if it didn't have one, the first containing tracker group that had one.\n\n`completed` is the percent complete (as returned by `tracker.completed()` method).\n\n`tracker` is the tracker object that you are listening for events on.\n\nTrackerGroup\n============\n\n* var tracker = new TrackerGroup(**name**)\n\n * **name** *(optional)* - The name of this tracker group, used in change\n notifications if the component updating didn't have a name. Defaults to undefined.\n\nCreates a new empty tracker aggregation group. These are trackers whose\ncompletion status is determined by the completion status of other trackers.\n\n* tracker.addUnit(**otherTracker**, **weight**)\n\n * **otherTracker** - Any of the other are-we-there-yet tracker objects\n * **weight** *(optional)* - The weight to give the tracker, defaults to 1.\n\nAdds the **otherTracker** to this aggregation group. The weight determines\nhow long you expect this tracker to take to complete in proportion to other\nunits. So for instance, if you add one tracker with a weight of 1 and\nanother with a weight of 2, you're saying the second will take twice as long\nto complete as the first. As such, the first will account for 33% of the\ncompletion of this tracker and the second will account for the other 67%.\n\nReturns **otherTracker**.\n\n* var subGroup = tracker.newGroup(**name**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subGroup = tracker.addUnit(new TrackerGroup(name), weight)\n```\n\n* var subItem = tracker.newItem(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subItem = tracker.addUnit(new Tracker(name, todo), weight)\n```\n\n* var subStream = tracker.newStream(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)\n```\n\n* console.log( tracker.debug() )\n\nReturns a tree showing the completion of this tracker group and all of its\nchildren, including recursively entering all of the children.\n\nTracker\n=======\n\n* var tracker = new Tracker(**name**, **todo**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.\n\nOrdinarily these are constructed as a part of a tracker group (via\n`newItem`).\n\n* var completed = tracker.completed()\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1. If\ntotal work to be done is 0 then it will return 0.\n\n* tracker.addWork(**todo**)\n\n * **todo** A number to add to the amount of work to be done.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\n\n* tracker.completeWork(**completed**)\n\n * **completed** A number to add to the work complete\n\nIncrease the amount of work complete, thus increasing the completion percentage.\nWill never increase the work completed past the amount of work todo. That is,\npercentages > 100% are not allowed. Triggers a `change` event.\n\n* tracker.finish()\n\nMarks this tracker as finished, tracker.completed() will now be 1. Triggers\na `change` event.\n\nTrackerStream\n=============\n\n* var tracker = new TrackerStream(**name**, **size**, **options**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **size** *(optional)* The number of bytes being sent through this stream.\n * **options** *(optional)* A hash of stream options\n\nThe tracker stream object is a pass through stream that updates an internal\ntracker object each time a block passes through. It's intended to track\ndownloads, file extraction and other related activities. You use it by piping\nyour data source into it and then using it as your data source.\n\nIf your data has a length attribute then that's used as the amount of work\ncompleted when the chunk is passed through. If it does not (eg, object\nstreams) then each chunk counts as completing 1 unit of work, so your size\nshould be the total number of objects being streamed.\n\n* tracker.addWork(**todo**)\n\n * **todo** Increase the expected overall size by **todo** bytes.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Release history\n\n### v4.0.0\n\n**Added**\n\n* `promise` support\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 64 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 19, 2017._\n# invariant\n\n[](https://travis-ci.org/zertosh/invariant)\n\nA mirror of Facebook's `invariant` (e.g. [React](https://github.com/facebook/react/blob/v0.13.3/src/vendor/core/invariant.js), [flux](https://github.com/facebook/flux/blob/2.0.2/src/invariant.js)).\n\nA way to provide descriptive errors in development but generic errors in production.\n\n## Install\n\nWith [npm](http://npmjs.org) do:\n\n```sh\nnpm install invariant\n```\n\n## `invariant(condition, message)`\n\n```js\nvar invariant = require('invariant');\n\ninvariant(someTruthyVal, 'This will not throw');\n// No errors\n\ninvariant(someFalseyVal, 'This will throw an error with this message');\n// Error: Invariant Violation: This will throw an error with this message\n```\n\n**Note:** When `process.env.NODE_ENV` is not `production`, the message is required. If omitted, `invariant` will throw regardless of the truthiness of the condition. When `process.env.NODE_ENV` is `production`, the message is optional – so they can be minified away.\n\n### Browser\n\nWhen used with [browserify](https://github.com/substack/node-browserify), it'll use `browser.js` (instead of `invariant.js`) and the [envify](https://github.com/hughsk/envify) transform will inline the value of `process.env.NODE_ENV`.\n\n### Node\n\nThe node version is optimized around the performance implications of accessing `process.env`. The value of `process.env.NODE_ENV` is cached, and repeatedly used instead of reading `process.env`. See [Server rendering is slower with npm react #812](https://github.com/facebook/react/issues/812)\n# node-sass\n\n#### Supported Node.js versions vary by release, please consult the [releases page](https://github.com/sass/node-sass/releases)\n\n<table>\n <tr>\n <td>\n <img width=\"77px\" alt=\"Sass logo\" src=\"https://rawgit.com/sass/node-sass/master/media/logo.svg\" />\n </td>\n <td valign=\"bottom\" align=\"right\">\n <a href=\"https://www.npmjs.com/package/node-sass\">\n <img width=\"100%\" src=\"https://nodei.co/npm/node-sass.png?downloads=true&downloadRank=true&stars=true\">\n </a>\n </td>\n </tr>\n</table>\n\n[](https://travis-ci.org/sass/node-sass)\n[](https://ci.appveyor.com/project/sass/node-sass/branch/master)\n[](http://badge.fury.io/js/node-sass)\n[](https://david-dm.org/sass/node-sass)\n[](https://david-dm.org/sass/node-sass#info=devDependencies)\n[](https://coveralls.io/r/sass/node-sass?branch=master)\n[](http://inch-ci.org/github/sass/node-sass)\n[](https://libsass-slack.herokuapp.com/)\n\nNode-sass is a library that provides binding for Node.js to [LibSass], the C version of the popular stylesheet preprocessor, Sass.\n\nIt allows you to natively compile .scss files to css at incredible speed and automatically via a connect middleware.\n\nFind it on npm: <https://www.npmjs.com/package/node-sass>\n\nFollow @nodesass on twitter for release updates: <https://twitter.com/nodesass>\n\n## Install\n\n```shell\nnpm install node-sass\n```\n\nSome users have reported issues installing on Ubuntu due to `node` being registered to another package. [Follow the official NodeJS docs](https://github.com/nodejs/node-v0.x-archive/wiki/Installing-Node.js-via-package-manager) to install NodeJS so that `#!/usr/bin/env node` correctly resolves.\n\nCompiling on Windows machines requires the [node-gyp prerequisites](https://github.com/nodejs/node-gyp#on-windows).\n\nAre you seeing the following error? Check out our [Troubleshooting guide](https://github.com/sass/node-sass/blob/master/TROUBLESHOOTING.md#installing-node-sass-4x-with-node--4).**\n\n```\nSyntaxError: Use of const in strict mode.\n```\n\n**Having installation troubles? Check out our [Troubleshooting guide](https://github.com/sass/node-sass/blob/master/TROUBLESHOOTING.md).**\n\n### Install from mirror in China\n\n```shell\nnpm install -g mirror-config-china --registry=http://registry.npm.taobao.org\nnpm install node-sass\n```\n\n## Usage\n\n```javascript\nvar sass = require('node-sass');\nsass.render({\n file: scss_filename,\n [, options..]\n}, function(err, result) { /*...*/ });\n// OR\nvar result = sass.renderSync({\n data: scss_content\n [, options..]\n});\n```\n\n## Options\n\n### file\n\n* Type: `String`\n* Default: `null`\n\n**Special**: `file` or `data` must be specified\n\nPath to a file for [LibSass] to compile.\n\n### data\n\n* Type: `String`\n* Default: `null`\n\n**Special**: `file` or `data` must be specified\n\nA string to pass to [LibSass] to compile. It is recommended that you use `includePaths` in conjunction with this so that [LibSass] can find files when using the `@import` directive.\n\n### importer (>= v2.0.0) - _experimental_\n\n**This is an experimental LibSass feature. Use with caution.**\n\n* Type: `Function | Function[]` signature `function(url, prev, done)`\n* Default: `undefined`\n\nFunction Parameters and Information:\n\n* `url (String)` - the path in import **as-is**, which [LibSass] encountered\n* `prev (String)` - the previously resolved path\n* `done (Function)` - a callback function to invoke on async completion, takes an object literal containing\n * `file (String)` - an alternate path for [LibSass] to use **OR**\n * `contents (String)` - the imported contents (for example, read from memory or the file system)\n\nHandles when [LibSass] encounters the `@import` directive. A custom importer allows extension of the [LibSass] engine in both a synchronous and asynchronous manner. In both cases, the goal is to either `return` or call `done()` with an object literal. Depending on the value of the object literal, one of two things will happen.\n\nWhen returning or calling `done()` with `{ file: \"String\" }`, the new file path will be assumed for the `@import`. It's recommended to be mindful of the value of `prev` in instances where relative path resolution may be required.\n\nWhen returning or calling `done()` with `{ contents: \"String\" }`, the string value will be used as if the file was read in through an external source.\n\nStarting from v3.0.0:\n\n* `this` refers to a contextual scope for the immediate run of `sass.render` or `sass.renderSync`\n\n* importers can return error and LibSass will emit that error in response. For instance:\n\n ```javascript\n done(new Error('doesn\\'t exist!'));\n // or return synchronously\n return new Error('nothing to do here');\n ```\n\n* importer can be an array of functions, which will be called by LibSass in the order of their occurrence in array. This helps user specify special importer for particular kind of path (filesystem, http). If an importer does not want to handle a particular path, it should return `null`. See [functions section](#functions--v300---experimental) for more details on Sass types.\n\n### functions (>= v3.0.0) - _experimental_\n\n**This is an experimental LibSass feature. Use with caution.**\n\n`functions` is an `Object` that holds a collection of custom functions that may be invoked by the sass files being compiled. They may take zero or more input parameters and must return a value either synchronously (`return ...;`) or asynchronously (`done();`). Those parameters will be instances of one of the constructors contained in the `require('node-sass').types` hash. The return value must be of one of these types as well. See the list of available types below:\n\n#### types.Number(value [, unit = \"\"])\n\n* `getValue()`/ `setValue(value)` : gets / sets the numerical portion of the number\n* `getUnit()` / `setUnit(unit)` : gets / sets the unit portion of the number\n\n#### types.String(value)\n\n* `getValue()` / `setValue(value)` : gets / sets the enclosed string\n\n#### types.Color(r, g, b [, a = 1.0]) or types.Color(argb)\n\n* `getR()` / `setR(value)` : red component (integer from `0` to `255`)\n* `getG()` / `setG(value)` : green component (integer from `0` to `255`)\n* `getB()` / `setB(value)` : blue component (integer from `0` to `255`)\n* `getA()` / `setA(value)` : alpha component (number from `0` to `1.0`)\n\nExample:\n\n```javascript\nvar Color = require('node-sass').types.Color,\n c1 = new Color(255, 0, 0),\n c2 = new Color(0xff0088cc);\n```\n\n#### types.Boolean(value)\n\n* `getValue()` : gets the enclosed boolean\n* `types.Boolean.TRUE` : Singleton instance of `types.Boolean` that holds \"true\"\n* `types.Boolean.FALSE` : Singleton instance of `types.Boolean` that holds \"false\"\n\n#### types.List(length [, commaSeparator = true])\n\n* `getValue(index)` / `setValue(index, value)` : `value` must itself be an instance of one of the constructors in `sass.types`.\n* `getSeparator()` / `setSeparator(isComma)` : whether to use commas as a separator\n* `getLength()`\n\n#### types.Map(length)\n\n* `getKey(index)` / `setKey(index, value)`\n* `getValue(index)` / `setValue(index, value)`\n* `getLength()`\n\n#### types.Null()\n\n* `types.Null.NULL` : Singleton instance of `types.Null`.\n\n#### Example\n\n```javascript\nsass.renderSync({\n data: '#{headings(2,5)} { color: #08c; }',\n functions: {\n 'headings($from: 0, $to: 6)': function(from, to) {\n var i, f = from.getValue(), t = to.getValue(),\n list = new sass.types.List(t - f + 1);\n\n for (i = f; i <= t; i++) {\n list.setValue(i - f, new sass.types.String('h' + i));\n }\n\n return list;\n }\n }\n});\n```\n\n### includePaths\n\n* Type: `Array<String>`\n* Default: `[]`\n\nAn array of paths that [LibSass] can look in to attempt to resolve your `@import` declarations. When using `data`, it is recommended that you use this.\n\n### indentedSyntax\n\n* Type: `Boolean`\n* Default: `false`\n\n`true` values enable [Sass Indented Syntax](http://sass-lang.com/documentation/file.INDENTED_SYNTAX.html) for parsing the data string or file.\n\n__Note:__ node-sass/libsass will compile a mixed library of scss and indented syntax (.sass) files with the Default setting (false) as long as .sass and .scss extensions are used in filenames.\n\n### indentType (>= v3.0.0)\n\n* Type: `String`\n* Default: `space`\n\nUsed to determine whether to use space or tab character for indentation.\n\n### indentWidth (>= v3.0.0)\n\n* Type: `Number`\n* Default: `2`\n* Maximum: `10`\n\nUsed to determine the number of spaces or tabs to be used for indentation.\n\n### linefeed (>= v3.0.0)\n\n* Type: `String`\n* Default: `lf`\n\nUsed to determine whether to use `cr`, `crlf`, `lf` or `lfcr` sequence for line break.\n\n### omitSourceMapUrl\n\n* Type: `Boolean`\n* Default: `false`\n\n**Special:** When using this, you should also specify `outFile` to avoid unexpected behavior.\n\n`true` values disable the inclusion of source map information in the output file.\n\n### outFile\n\n* Type: `String | null`\n* Default: `null`\n\n**Special:** Required when `sourceMap` is a truthy value\n\nSpecify the intended location of the output file. Strongly recommended when outputting source maps so that they can properly refer back to their intended files.\n\n**Attention** enabling this option will **not** write the file on disk for you, it's for internal reference purpose only (to generate the map for example).\n\nExample on how to write it on the disk\n\n```javascript\nsass.render({\n ...\n outFile: yourPathTotheFile,\n }, function(error, result) { // node-style callback from v3.0.0 onwards\n if(!error){\n // No errors during the compilation, write this result on the disk\n fs.writeFile(yourPathTotheFile, result.css, function(err){\n if(!err){\n //file written on disk\n }\n });\n }\n });\n});\n```\n\n### outputStyle\n\n* Type: `String`\n* Default: `nested`\n* Values: `nested`, `expanded`, `compact`, `compressed`\n\nDetermines the output format of the final CSS style.\n\n### precision\n\n* Type: `Integer`\n* Default: `5`\n\nUsed to determine how many digits after the decimal will be allowed. For instance, if you had a decimal number of `1.23456789` and a precision of `5`, the result will be `1.23457` in the final CSS.\n\n### sourceComments\n\n* Type: `Boolean`\n* Default: `false`\n\n`true` Enables the line number and file where a selector is defined to be emitted into the compiled CSS as a comment. Useful for debugging, especially when using imports and mixins.\n\n### sourceMap\n\n* Type: `Boolean | String | undefined`\n* Default: `undefined`\n\n**Special:** Setting the `sourceMap` option requires also setting the `outFile` option\n\nEnables the outputting of a source map during `render` and `renderSync`. When `sourceMap === true`, the value of `outFile` is used as the target output location for the source map. When `typeof sourceMap === \"string\"`, the value of `sourceMap` will be used as the writing location for the file.\n\n### sourceMapContents\n\n* Type: `Boolean`\n* Default: `false`\n\n`true` includes the `contents` in the source map information\n\n### sourceMapEmbed\n\n* Type: `Boolean`\n* Default: `false`\n\n`true` embeds the source map as a data URI\n\n### sourceMapRoot\n\n* Type: `String`\n* Default: `undefined`\n\nthe value will be emitted as `sourceRoot` in the source map information\n\n## `render` Callback (>= v3.0.0)\n\nnode-sass supports standard node style asynchronous callbacks with the signature of `function(err, result)`. In error conditions, the `error` argument is populated with the error object. In success conditions, the `result` object is populated with an object describing the result of the render call.\n\n### Error Object\n\n* `message` (String) - The error message.\n* `line` (Number) - The line number of error.\n* `column` (Number) - The column number of error.\n* `status` (Number) - The status code.\n* `file` (String) - The filename of error. In case `file` option was not set (in favour of `data`), this will reflect the value `stdin`.\n\n### Result Object\n\n* `css` (Buffer) - The compiled CSS. Write this to a file, or serve it out as needed.\n* `map` (Buffer) - The source map\n* `stats` (Object) - An object containing information about the compile. It contains the following keys:\n * `entry` (String) - The path to the scss file, or `data` if the source was not a file\n * `start` (Number) - Date.now() before the compilation\n * `end` (Number) - Date.now() after the compilation\n * `duration` (Number) - *end* - *start*\n * `includedFiles` (Array) - Absolute paths to all related scss files in no particular order.\n\n### Examples\n\n```javascript\nvar sass = require('node-sass');\nsass.render({\n file: '/path/to/myFile.scss',\n data: 'body{background:blue; a{color:black;}}',\n importer: function(url, prev, done) {\n // url is the path in import as is, which LibSass encountered.\n // prev is the previously resolved path.\n // done is an optional callback, either consume it or return value synchronously.\n // this.options contains this options hash, this.callback contains the node-style callback\n someAsyncFunction(url, prev, function(result){\n done({\n file: result.path, // only one of them is required, see section Special Behaviours.\n contents: result.data\n });\n });\n // OR\n var result = someSyncFunction(url, prev);\n return {file: result.path, contents: result.data};\n },\n includePaths: [ 'lib/', 'mod/' ],\n outputStyle: 'compressed'\n}, function(error, result) { // node-style callback from v3.0.0 onwards\n if (error) {\n console.log(error.status); // used to be \"code\" in v2x and below\n console.log(error.column);\n console.log(error.message);\n console.log(error.line);\n }\n else {\n console.log(result.css.toString());\n\n console.log(result.stats);\n\n console.log(result.map.toString());\n // or better\n console.log(JSON.stringify(result.map)); // note, JSON.stringify accepts Buffer too\n }\n});\n// OR\nvar result = sass.renderSync({\n file: '/path/to/file.scss',\n data: 'body{background:blue; a{color:black;}}',\n outputStyle: 'compressed',\n outFile: '/to/my/output.css',\n sourceMap: true, // or an absolute or relative (to outFile) path\n importer: function(url, prev, done) {\n // url is the path in import as is, which LibSass encountered.\n // prev is the previously resolved path.\n // done is an optional callback, either consume it or return value synchronously.\n // this.options contains this options hash\n someAsyncFunction(url, prev, function(result){\n done({\n file: result.path, // only one of them is required, see section Special Behaviours.\n contents: result.data\n });\n });\n // OR\n var result = someSyncFunction(url, prev);\n return {file: result.path, contents: result.data};\n }\n}));\n\nconsole.log(result.css);\nconsole.log(result.map);\nconsole.log(result.stats);\n```\n\n### Special behaviours\n\n* In the case that both `file` and `data` options are set, node-sass will give precedence to `data` and use `file` to calculate paths in sourcemaps.\n\n### Version information (>= v2.0.0)\n\nBoth `node-sass` and `libsass` version info is now exposed via the `info` method:\n\n```javascript\nvar sass = require('node-sass');\n\nconsole.log(sass.info);\n\n/*\n it will output something like:\n\n node-sass 2.0.1 (Wrapper) [JavaScript]\n libsass 3.1.0 (Sass Compiler) [C/C++]\n*/\n```\n\nSince node-sass >=v3.0.0 LibSass version is determined at run time.\n\n## Integrations\n\nListing of community uses of node-sass in build tools and frameworks.\n\n### Brackets extension\n\n[@jasonsanjose](https://github.com/jasonsanjose) has created a [Brackets](http://brackets.io) extension based on node-sass: <https://github.com/jasonsanjose/brackets-sass>. When editing Sass files, the extension compiles changes on save. The extension also integrates with Live Preview to show Sass changes in the browser without saving or compiling.\n\n### Brunch plugin\n\n[Brunch](http://brunch.io)'s official sass plugin uses node-sass by default, and automatically falls back to ruby if use of Compass is detected: <https://github.com/brunch/sass-brunch>\n\n### Connect/Express middleware\n\nRecompile `.scss` files automatically for connect and express based http servers.\n\nThis functionality has been moved to [`node-sass-middleware`](https://github.com/sass/node-sass-middleware) in node-sass v1.0.0\n\n### DocPad Plugin\n\n[@10xLaCroixDrinker](https://github.com/10xLaCroixDrinker) wrote a [DocPad](http://docpad.org/) plugin that compiles `.scss` files using node-sass: <https://github.com/10xLaCroixDrinker/docpad-plugin-nodesass>\n\n### Duo.js extension\n\n[@stephenway](https://github.com/stephenway) has created an extension that transpiles Sass to CSS using node-sass with [duo.js](http://duojs.org/)\n<https://github.com/duojs/sass>\n\n### Grunt extension\n\n[@sindresorhus](https://github.com/sindresorhus/) has created a set of grunt tasks based on node-sass: <https://github.com/sindresorhus/grunt-sass>\n\n### Gulp extension\n\n[@dlmanning](https://github.com/dlmanning/) has created a gulp sass plugin based on node-sass: <https://github.com/dlmanning/gulp-sass>\n\n### Harp\n\n[@sintaxi](https://github.com/sintaxi)’s Harp web server implicitly compiles `.scss` files using node-sass: <https://github.com/sintaxi/harp>\n\n### Metalsmith plugin\n\n[@stevenschobert](https://github.com/stevenschobert/) has created a metalsmith plugin based on node-sass: <https://github.com/stevenschobert/metalsmith-sass>\n\n### Meteor plugin\n\n[@fourseven](https://github.com/fourseven) has created a meteor plugin based on node-sass: <https://github.com/fourseven/meteor-scss>\n\n### Mimosa module\n\n[@dbashford](https://github.com/dbashford) has created a Mimosa module for sass which includes node-sass: <https://github.com/dbashford/mimosa-sass>\n\n## Example App\n\nThere is also an example connect app here: <https://github.com/andrew/node-sass-example>\n\n## Rebuilding binaries\n\nNode-sass includes pre-compiled binaries for popular platforms, to add a binary for your platform follow these steps:\n\nCheck out the project:\n\n```bash\ngit clone --recursive https://github.com/sass/node-sass.git\ncd node-sass\nnpm install\nnode scripts/build -f # use -d switch for debug release\n# if succeeded, it will generate and move\n# the binary in vendor directory.\n```\n\n## Command Line Interface\n\nThe interface for command-line usage is fairly simplistic at this stage, as seen in the following usage section.\n\nOutput will be sent to stdout if the `--output` flag is omitted.\n\n### Usage\n\n `node-sass [options] <input> [output]`\n Or:\n `cat <input> | node-sass > output`\n\nExample:\n\n`node-sass src/style.scss dest/style.css`\n\n **Options:**\n\n```bash\n -w, --watch Watch a directory or file\n -r, --recursive Recursively watch directories or files\n -o, --output Output directory\n -x, --omit-source-map-url Omit source map URL comment from output\n -i, --indented-syntax Treat data from stdin as sass code (versus scss)\n -q, --quiet Suppress log output except on error\n -v, --version Prints version info\n --output-style CSS output style (nested | expanded | compact | compressed)\n --indent-type Indent type for output CSS (space | tab)\n --indent-width Indent width; number of spaces or tabs (maximum value: 10)\n --linefeed Linefeed style (cr | crlf | lf | lfcr)\n --source-comments Include debug info in output\n --source-map Emit source map\n --source-map-contents Embed include contents in map\n --source-map-embed Embed sourceMappingUrl as data URI\n --source-map-root Base path, will be emitted in source-map as is\n --include-path Path to look for imported files\n --follow Follow symlinked directories\n --precision The amount of precision allowed in decimal numbers\n --error-bell Output a bell character on errors\n --importer Path to .js file containing custom importer\n --functions Path to .js file containing custom functions\n --help Print usage info\n```\n\nThe `input` can be either a single `.scss` or `.sass`, or a directory. If the input is a directory the `--output` flag must also be supplied.\n\nAlso, note `--importer` takes the (absolute or relative to pwd) path to a js file, which needs to have a default `module.exports` set to the importer function. See our test [fixtures](https://github.com/sass/node-sass/tree/974f93e76ddd08ea850e3e663cfe64bb6a059dd3/test/fixtures/extras) for example.\n\nThe `--source-map` option accepts a boolean value, in which case it replaces destination extension with `.css.map`. It also accepts path to `.map` file and even path to the desired directory.\nWhen compiling a directory `--source-map` can either be a boolean value or a directory.\n\n## Binary configuration parameters\n\nnode-sass supports different configuration parameters to change settings related to the sass binary such as binary name, binary path or alternative download path. Following parameters are supported by node-sass:\n\nVariable name | .npmrc parameter | Process argument | Value\n-----------------|------------------|--------------------|------\nSASS_BINARY_NAME | sass_binary_name | --sass-binary-name | path\nSASS_BINARY_SITE | sass_binary_site | --sass-binary-site | URL\nSASS_BINARY_PATH | sass_binary_path | --sass-binary-path | path\nSASS_BINARY_DIR | sass_binary_dir | --sass-binary-dir | path\n\nThese parameters can be used as environment variable:\n\n* E.g. `export SASS_BINARY_SITE=http://example.com/`\n\nAs local or global [.npmrc](https://docs.npmjs.com/misc/config) configuration file:\n\n* E.g. `sass_binary_site=http://example.com/`\n\nAs a process argument:\n\n* E.g. `npm install node-sass --sass-binary-site=http://example.com/`\n\n## Post-install Build\n\nInstall runs only two Mocha tests to see if your machine can use the pre-built [LibSass] which will save some time during install. If any tests fail it will build from source.\n\n## Maintainers\n\nThis module is brought to you and maintained by the following people:\n\n* Michael Mifsud - Project Lead ([Github](https://github.com/xzyfer) / [Twitter](https://twitter.com/xzyfer))\n* Andrew Nesbitt ([Github](https://github.com/andrew) / [Twitter](https://twitter.com/teabass))\n* Dean Mao ([Github](https://github.com/deanmao) / [Twitter](https://twitter.com/deanmao))\n* Brett Wilkins ([Github](https://github.com/bwilkins) / [Twitter](https://twitter.com/bjmaz))\n* Keith Cirkel ([Github](https://github.com/keithamus) / [Twitter](https://twitter.com/Keithamus))\n* Laurent Goderre ([Github](https://github.com/laurentgoderre) / [Twitter](https://twitter.com/laurentgoderre))\n* Nick Schonning ([Github](https://github.com/nschonni) / [Twitter](https://twitter.com/nschonni))\n* Adam Yeats ([Github](https://github.com/adamyeats) / [Twitter](https://twitter.com/adamyeats))\n* Adeel Mujahid ([Github](https://github.com/am11) / [Twitter](https://twitter.com/adeelbm))\n\n## Contributors\n\nWe <3 our contributors! A special thanks to all those who have clocked in some dev time on this project, we really appreciate your hard work. You can find [a full list of those people here.](https://github.com/sass/node-sass/graphs/contributors)\n\n### Note on Patches/Pull Requests\n\nCheck out our [Contributing guide](/.github/CONTRIBUTING.md)\n\n## Copyright\n\nCopyright (c) 2015 Andrew Nesbitt. See [LICENSE](https://github.com/sass/node-sass/blob/master/LICENSE) for details.\n\n[LibSass]: https://github.com/sass/libsass\n# brace-expansion\n\n[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html), \nas known from sh/bash, in JavaScript.\n\n[](http://travis-ci.org/juliangruber/brace-expansion)\n[](https://www.npmjs.org/package/brace-expansion)\n[](https://greenkeeper.io/)\n\n[](https://ci.testling.com/juliangruber/brace-expansion)\n\n## Example\n\n```js\nvar expand = require('brace-expansion');\n\nexpand('file-{a,b,c}.jpg')\n// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']\n\nexpand('-v{,,}')\n// => ['-v', '-v', '-v']\n\nexpand('file{0..2}.jpg')\n// => ['file0.jpg', 'file1.jpg', 'file2.jpg']\n\nexpand('file-{a..c}.jpg')\n// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']\n\nexpand('file{2..0}.jpg')\n// => ['file2.jpg', 'file1.jpg', 'file0.jpg']\n\nexpand('file{0..4..2}.jpg')\n// => ['file0.jpg', 'file2.jpg', 'file4.jpg']\n\nexpand('file-{a..e..2}.jpg')\n// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']\n\nexpand('file{00..10..5}.jpg')\n// => ['file00.jpg', 'file05.jpg', 'file10.jpg']\n\nexpand('{{A..C},{a..c}}')\n// => ['A', 'B', 'C', 'a', 'b', 'c']\n\nexpand('ppp{,config,oe{,conf}}')\n// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']\n```\n\n## API\n\n```js\nvar expand = require('brace-expansion');\n```\n\n### var expanded = expand(str)\n\nReturn an array of all possible and valid expansions of `str`. If none are\nfound, `[str]` is returned.\n\nValid expansions are:\n\n```js\n/^(.*,)+(.+)?$/\n// {a,b,...}\n```\n\nA comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.\n\n```js\n/^-?\\d+\\.\\.-?\\d+(\\.\\.-?\\d+)?$/\n// {x..y[..incr]}\n```\n\nA numeric sequence from `x` to `y` inclusive, with optional increment.\nIf `x` or `y` start with a leading `0`, all the numbers will be padded\nto have equal length. Negative numbers and backwards iteration work too.\n\n```js\n/^-?\\d+\\.\\.-?\\d+(\\.\\.-?\\d+)?$/\n// {x..y[..incr]}\n```\n\nAn alphabetic sequence from `x` to `y` inclusive, with optional increment.\n`x` and `y` must be exactly one character, and if given, `incr` must be a\nnumber.\n\nFor compatibility reasons, the string `${` is not eligible for brace expansion.\n\n## Installation\n\nWith [npm](https://npmjs.org) do:\n\n```bash\nnpm install brace-expansion\n```\n\n## Contributors\n\n- [Julian Gruber](https://github.com/juliangruber)\n- [Isaac Z. Schlueter](https://github.com/isaacs)\n\n## Sponsors\n\nThis module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!\n\nDo you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# globule [](https://travis-ci.org/cowboy/node-globule) [](https://ci.appveyor.com/project/gruntjs/node-globule/branch/master)\n\nAn easy-to-use wildcard globbing library.\n\n## Getting Started\nInstall the module with: `npm install globule`\n\n```javascript\nvar globule = require('globule');\nvar filepaths = globule.find('**/*.js');\n```\n\n## Documentation\n\n### globule.find\nReturns a unique array of all file or directory paths that match the given globbing pattern(s). This method accepts either comma separated globbing patterns or an array of globbing patterns. Paths matching patterns that begin with `!` will be excluded from the returned array. Patterns are processed in order, so inclusion and exclusion order is significant. Patterns may be specified as function arguments or as a `src` property of the options object.\n\n```js\nglobule.find(patterns [, patterns [, ...]] [, options])\nglobule.find({src: patterns, /* other options */})\n```\n\nThe `options` object supports all [glob][] library options, along with a few extras. These are the most commonly used:\n\n* `src` This property may be used instead of specifying patterns as function arguments.\n* `filter` Either a valid [fs.Stats method name](http://nodejs.org/docs/latest/api/fs.html#fs_class_fs_stats) or a function that will be passed the matched `src` filepath and `options` object as arguments. This function should return a `Boolean` value.\n* `nonull` Retain globbing patterns in result set even if they fail to match files.\n* `matchBase` Patterns without slashes will match just the basename part. Eg. this makes `*.js` work like `**/*.js`.\n* `srcBase` Patterns will be matched relative to the specified path instead of the current working directory. This is a synonym for `cwd`.\n* `prefixBase` Any specified `srcBase` will be prefixed to all returned filepaths.\n\n[glob]: https://github.com/isaacs/node-glob\n\n### globule.match\nMatch one or more globbing patterns against one or more file paths. Returns a uniqued array of all file paths that match any of the specified globbing patterns. Both the `patterns` and `filepaths` arguments can be a single string or array of strings. Paths matching patterns that begin with `!` will be excluded from the returned array. Patterns are processed in order, so inclusion and exclusion order is significant.\n\n```js\nglobule.match(patterns, filepaths [, options])\n```\n\n### globule.isMatch\nThis method contains the same signature and logic as the `globule.match` method, but returns `true` if any files were matched, otherwise `false`.\n\n```js\nglobule.isMatch(patterns, filepaths [, options])\n```\n\n### globule.mapping\nGiven a set of source file paths, returns an array of src-dest file mapping objects. Both src and dest paths may be renamed, depending on the options specified. Patterns may be specified as function arguments or as a `src` property of the options object.\n\n```js\nglobule.mapping(filepaths [, filepaths [, ...]] [, options])\nglobule.mapping({src: filepaths, /* other options */})\n```\n\nIn addition to the options the `globule.find` method supports, the options object also supports these properties:\n\n* `srcBase` The directory from which patterns are matched. Any string specified as `srcBase` is effectively stripped from the beginning of all matched paths.\n* `destBase` The specified path is prefixed to all `dest` filepaths.\n* `ext` Remove anything after (and including) the first `.` in the destination path, then append this value.\n* `extDot` Change the behavior of `ext`, `\"first\"` and `\"last\"` will remove anything after the first or last `.` in the destination filename, respectively. Defaults to `\"first\"`.\n* `flatten` Remove the path component from all matched src files. The src file path is still joined to the specified destBase.\n* `rename` If specified, this function will be responsible for returning the final `dest` filepath. By default, it flattens paths (if specified), changes extensions (if specified) and joins the matched path to the `destBase`.\n\n### globule.findMapping\nThis method is a convenience wrapper around the `globule.find` and `globule.mapping` methods.\n\n```js\nglobule.findMapping(patterns [, options])\n```\n\n## Examples\n\nGiven the files `foo/a.js` and `foo/b.js`:\n\n### srcBase and destBase\n\n```js\nglobule.find(\"foo/*.js\")\n// [\"foo/a.js\", \"foo/b.js\"]\n\nglobule.find(\"*.js\", {srcBase: \"foo\"})\n// [\"a.js\", \"b.js\"]\n\nglobule.find({src: \"*.js\", srcBase: \"foo\", prefixBase: true})\n// [\"foo/a.js\", \"foo/b.js\"]\n```\n\n```js\nglobule.findMapping(\"foo/*.js\")\n// [{src: [\"foo/a.js\"], dest: \"foo/a.js\"}, {src: [\"foo/b.js\"], dest: \"foo/b.js\"}]\n\nglobule.findMapping(\"foo/*.js\", {destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/foo/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/foo/b.js\"}]\n\nglobule.findMapping({src: \"*.js\", srcBase: \"foo\", destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/b.js\"}]\n```\n\n```js\nglobule.mapping([\"foo/a.js\", \"foo/b.js\"])\n// [{src: [\"foo/a.js\"], dest: \"foo/a.js\"}, {src: [\"foo/b.js\"], dest: \"foo/b.js\"}]\n\nglobule.mapping([\"foo/a.js\", \"foo/b.js\"], {destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/foo/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/foo/b.js\"}]\n\nglobule.mapping(\"foo/a.js\", \"foo/b.js\", {destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/foo/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/foo/b.js\"}]\n\nglobule.mapping([\"a.js\", \"b.js\"], {srcBase: \"foo\", destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/b.js\"}]\n\nglobule.mapping({src: [\"a.js\", \"b.js\"], srcBase: \"foo\", destBase: \"bar\"})\n// [{src: [\"foo/a.js\"], dest: \"bar/a.js\"}, {src: [\"foo/b.js\"], dest: \"bar/b.js\"}]\n```\n\n## Contributing\nIn lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [Grunt](http://gruntjs.com/).\n\n## Release History\n2018-05-29 - v1.2.1 - Update dependencies, lodash@4.17.10 to avoid errant security warnings. \n2017-06-10 - v1.2.0 - Update dependencies, lodash@4.17. \n2016-10-23 - v1.1.0 - Update dependencies, lodash@4.16, glob@7.1. \n2016-04-14 - v1.0.0 - Update dependencies, lodash@4.9, glob@7.0, minimatch@3.0. Paths are unix-style with prefixBase enabled. \n2014-01-07 - v0.2.0 - Updated dependencies. Added `src` option. Improved exclusion speed significantly. \n2013-04-11 - v0.1.0 - Initial release. \n\n## License\nCopyright (c) 2018 \"Cowboy\" Ben Alman \nLicensed under the MIT license.\n# EventEmitter3\n\n[](https://www.npmjs.com/package/eventemitter3)[](https://travis-ci.org/primus/eventemitter3)[](https://david-dm.org/primus/eventemitter3)[](https://coveralls.io/r/primus/eventemitter3?branch=master)[](https://webchat.freenode.net/?channels=primus)\n\n[](https://saucelabs.com/u/eventemitter3)\n\nEventEmitter3 is a high performance EventEmitter. It has been micro-optimized\nfor various of code paths making this, one of, if not the fastest EventEmitter\navailable for Node.js and browsers. The module is API compatible with the\nEventEmitter that ships by default with Node.js but there are some slight\ndifferences:\n\n- Domain support has been removed.\n- We do not `throw` an error when you emit an `error` event and nobody is\n listening.\n- The `newListener` and `removeListener` events have been removed as they\n are useful only in some uncommon use-cases.\n- The `setMaxListeners`, `getMaxListeners`, `prependListener` and\n `preperndOnceListener` methods are not available.\n- Support for custom context for events so there is no need to use `fn.bind`.\n- The `removeListener` method removes all matching listeners, not only the\n first.\n\nIt's a drop in replacement for existing EventEmitters, but just faster. Free\nperformance, who wouldn't want that? The EventEmitter is written in EcmaScript 3\nso it will work in the oldest browsers and node versions that you need to\nsupport.\n\n## Installation\n\n```bash\n$ npm install --save eventemitter3\n```\n\n## CDN\n\nRecommended CDN:\n\n```text\nhttps://unpkg.com/eventemitter3@latest/umd/eventemitter3.min.js\n```\n\n## Usage\n\nAfter installation the only thing you need to do is require the module:\n\n```js\nvar EventEmitter = require('eventemitter3');\n```\n\nAnd you're ready to create your own EventEmitter instances. For the API\ndocumentation, please follow the official Node.js documentation:\n\nhttp://nodejs.org/api/events.html\n\n### Contextual emits\n\nWe've upgraded the API of the `EventEmitter.on`, `EventEmitter.once` and\n`EventEmitter.removeListener` to accept an extra argument which is the `context`\nor `this` value that should be set for the emitted events. This means you no\nlonger have the overhead of an event that required `fn.bind` in order to get a\ncustom `this` value.\n\n```js\nvar EE = new EventEmitter()\n , context = { foo: 'bar' };\n\nfunction emitted() {\n console.log(this === context); // true\n}\n\nEE.once('event-name', emitted, context);\nEE.on('another-event', emitted, context);\nEE.removeListener('another-event', emitted, context);\n```\n\n### Tests and benchmarks\n\nThis module is well tested. You can run:\n\n- `npm test` to run the tests under Node.js.\n- `npm run test-browser` to run the tests in real browsers via Sauce Labs.\n\nWe also have a set of benchmarks to compare EventEmitter3 with some available\nalternatives. To run the benchmarks run `npm run benchmark`.\n\nTests and benchmarks are not included in the npm package. If you want to play\nwith them you have to clone the GitHub repository.\n\n## License\n\n[MIT](LICENSE)\n# Merge Descriptors\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nMerge objects using descriptors.\n\n```js\nvar thing = {\n get name() {\n return 'jon'\n }\n}\n\nvar animal = {\n\n}\n\nmerge(animal, thing)\n\nanimal.name === 'jon'\n```\n\n## API\n\n### merge(destination, source)\n\nRedefines `destination`'s descriptors with `source`'s.\n\n### merge(destination, source, false)\n\nDefines `source`'s descriptors on `destination` if `destination` does not have\na descriptor by the same name.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/merge-descriptors.svg\n[npm-url]: https://npmjs.org/package/merge-descriptors\n[travis-image]: https://img.shields.io/travis/component/merge-descriptors/master.svg\n[travis-url]: https://travis-ci.org/component/merge-descriptors\n[coveralls-image]: https://img.shields.io/coveralls/component/merge-descriptors/master.svg\n[coveralls-url]: https://coveralls.io/r/component/merge-descriptors?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/merge-descriptors.svg\n[downloads-url]: https://npmjs.org/package/merge-descriptors\n# for-in [](https://www.npmjs.com/package/for-in) [](https://npmjs.org/package/for-in) [](https://npmjs.org/package/for-in) [](https://travis-ci.org/jonschlinkert/for-in)\n\n> Iterate over the own and inherited enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save for-in\n```\n\n## Usage\n\n```js\nvar forIn = require('for-in');\n\nvar obj = {a: 'foo', b: 'bar', c: 'baz'};\nvar values = [];\nvar keys = [];\n\nforIn(obj, function (value, key, o) {\n keys.push(key);\n values.push(value);\n});\n\nconsole.log(keys);\n//=> ['a', 'b', 'c'];\n\nconsole.log(values);\n//=> ['foo', 'bar', 'baz'];\n```\n\n## About\n\n### Related projects\n\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten)\n* [collection-map](https://www.npmjs.com/package/collection-map): Returns an array of mapped values from an array or object. | [homepage](https://github.com/jonschlinkert/collection-map)\n* [for-own](https://www.npmjs.com/package/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own) | [homepage](https://github.com/jonschlinkert/for-own)\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 11 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 2 | [paulirish](https://github.com/paulirish) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 26, 2017._\n# which-module\n\n> Find the module object for something that was require()d\n\n[](https://travis-ci.org/nexdrew/which-module)\n[](https://coveralls.io/github/nexdrew/which-module?branch=master)\n[](https://github.com/conventional-changelog/standard-version)\n\nFind the `module` object in `require.cache` for something that was `require()`d\nor `import`ed - essentially a reverse `require()` lookup.\n\nUseful for libs that want to e.g. lookup a filename for a module or submodule\nthat it did not `require()` itself.\n\n## Install and Usage\n\n```\nnpm install --save which-module\n```\n\n```js\nconst whichModule = require('which-module')\n\nconsole.log(whichModule(require('something')))\n// Module {\n// id: '/path/to/project/node_modules/something/index.js',\n// exports: [Function],\n// parent: ...,\n// filename: '/path/to/project/node_modules/something/index.js',\n// loaded: true,\n// children: [],\n// paths: [ '/path/to/project/node_modules/something/node_modules',\n// '/path/to/project/node_modules',\n// '/path/to/node_modules',\n// '/path/node_modules',\n// '/node_modules' ] }\n```\n\n## API\n\n### `whichModule(exported)`\n\nReturn the [`module` object](https://nodejs.org/api/modules.html#modules_the_module_object),\nif any, that represents the given argument in the `require.cache`.\n\n`exported` can be anything that was previously `require()`d or `import`ed as a\nmodule, submodule, or dependency - which means `exported` is identical to the\n`module.exports` returned by this method.\n\nIf `exported` did not come from the `exports` of a `module` in `require.cache`,\nthen this method returns `null`.\n\n## License\n\nISC © Contributors\n# JSON5 – JSON for Humans\n\n[][Build Status]\n[][Coverage\nStatus]\n\nThe JSON5 Data Interchange Format (JSON5) is a superset of [JSON] that aims to\nalleviate some of the limitations of JSON by expanding its syntax to include\nsome productions from [ECMAScript 5.1].\n\nThis JavaScript library is the official reference implementation for JSON5\nparsing and serialization libraries.\n\n[Build Status]: https://travis-ci.org/json5/json5\n\n[Coverage Status]: https://coveralls.io/github/json5/json5\n\n[JSON]: https://tools.ietf.org/html/rfc7159\n\n[ECMAScript 5.1]: https://www.ecma-international.org/ecma-262/5.1/\n\n## Summary of Features\nThe following ECMAScript 5.1 features, which are not supported in JSON, have\nbeen extended to JSON5.\n\n### Objects\n- Object keys may be an ECMAScript 5.1 _[IdentifierName]_.\n- Objects may have a single trailing comma.\n\n### Arrays\n- Arrays may have a single trailing comma.\n\n### Strings\n- Strings may be single quoted.\n- Strings may span multiple lines by escaping new line characters.\n- Strings may include character escapes.\n\n### Numbers\n- Numbers may be hexadecimal.\n- Numbers may have a leading or trailing decimal point.\n- Numbers may be [IEEE 754] positive infinity, negative infinity, and NaN.\n- Numbers may begin with an explicit plus sign.\n\n### Comments\n- Single and multi-line comments are allowed.\n\n### White Space\n- Additional white space characters are allowed.\n\n[IdentifierName]: https://www.ecma-international.org/ecma-262/5.1/#sec-7.6\n\n[IEEE 754]: http://ieeexplore.ieee.org/servlet/opac?punumber=4610933\n\n## Short Example\n```js\n{\n // comments\n unquoted: 'and you can quote me on that',\n singleQuotes: 'I can use \"double quotes\" here',\n lineBreaks: \"Look, Mom! \\\nNo \\\\n's!\",\n hexadecimal: 0xdecaf,\n leadingDecimalPoint: .8675309, andTrailing: 8675309.,\n positiveSign: +1,\n trailingComma: 'in objects', andIn: ['arrays',],\n \"backwardsCompatible\": \"with JSON\",\n}\n```\n\n## Specification\nFor a detailed explanation of the JSON5 format, please read the [official\nspecification](https://json5.github.io/json5-spec/).\n\n## Installation\n### Node.js\n```sh\nnpm install json5\n```\n\n```js\nconst JSON5 = require('json5')\n```\n\n### Browsers\n```html\n<script src=\"https://unpkg.com/json5@^1.0.0\"></script>\n```\n\nThis will create a global `JSON5` variable.\n\n## API\nThe JSON5 API is compatible with the [JSON API].\n\n[JSON API]:\nhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON\n\n### JSON5.parse()\nParses a JSON5 string, constructing the JavaScript value or object described by\nthe string. An optional reviver function can be provided to perform a\ntransformation on the resulting object before it is returned.\n\n#### Syntax\n JSON5.parse(text[, reviver])\n\n#### Parameters\n- `text`: The string to parse as JSON5.\n- `reviver`: If a function, this prescribes how the value originally produced by\n parsing is transformed, before being returned.\n\n#### Return value\nThe object corresponding to the given JSON5 text.\n\n### JSON5.stringify()\nConverts a JavaScript value to a JSON5 string, optionally replacing values if a\nreplacer function is specified, or optionally including only the specified\nproperties if a replacer array is specified.\n\n#### Syntax\n JSON5.stringify(value[, replacer[, space]])\n JSON5.stringify(value[, options])\n\n#### Parameters\n- `value`: The value to convert to a JSON5 string.\n- `replacer`: A function that alters the behavior of the stringification\n process, or an array of String and Number objects that serve as a whitelist\n for selecting/filtering the properties of the value object to be included in\n the JSON5 string. If this value is null or not provided, all properties of the\n object are included in the resulting JSON5 string.\n- `space`: A String or Number object that's used to insert white space into the\n output JSON5 string for readability purposes. If this is a Number, it\n indicates the number of space characters to use as white space; this number is\n capped at 10 (if it is greater, the value is just 10). Values less than 1\n indicate that no space should be used. If this is a String, the string (or the\n first 10 characters of the string, if it's longer than that) is used as white\n space. If this parameter is not provided (or is null), no white space is used.\n If white space is used, trailing commas will be used in objects and arrays.\n- `options`: An object with the following properties:\n - `replacer`: Same as the `replacer` parameter.\n - `space`: Same as the `space` parameter.\n - `quote`: A String representing the quote character to use when serializing\n strings.\n\n#### Return value\nA JSON5 string representing the value.\n\n### Node.js `require()` JSON5 files\nWhen using Node.js, you can `require()` JSON5 files by adding the following\nstatement.\n\n```js\nrequire('json5/lib/register')\n```\n\nThen you can load a JSON5 file with a Node.js `require()` statement. For\nexample:\n\n```js\nconst config = require('./config.json5')\n```\n\n## CLI\nSince JSON is more widely used than JSON5, this package includes a CLI for\nconverting JSON5 to JSON and for validating the syntax of JSON5 documents.\n\n### Installation\n```sh\nnpm install --global json5\n```\n\n### Usage\n```sh\njson5 [options] <file>\n```\n\nIf `<file>` is not provided, then STDIN is used.\n\n#### Options:\n- `-s`, `--space`: The number of spaces to indent or `t` for tabs\n- `-o`, `--out-file [file]`: Output to the specified file, otherwise STDOUT\n- `-v`, `--validate`: Validate JSON5 but do not output JSON\n- `-V`, `--version`: Output the version number\n- `-h`, `--help`: Output usage information\n\n## Contibuting\n### Development\n```sh\ngit clone https://github.com/json5/json5\ncd json5\nnpm install\n```\n\nWhen contributing code, please write relevant tests and run `npm test` and `npm\nrun lint` before submitting pull requests. Please use an editor that supports\n[EditorConfig](http://editorconfig.org/).\n\n### Issues\nTo report bugs or request features regarding the JSON5 data format, please\nsubmit an issue to the [official specification\nrepository](https://github.com/json5/json5-spec).\n\nTo report bugs or request features regarding the JavaScript implentation of\nJSON5, please submit an issue to this repository.\n\n## License\nMIT. See [LICENSE.md](./LICENSE.md) for details.\n\n## Credits\n[Assem Kishore](https://github.com/aseemk) founded this project.\n\n[Michael Bolin](http://bolinfest.com/) independently arrived at and published\nsome of these same ideas with awesome explanations and detail. Recommended\nreading: [Suggested Improvements to JSON](http://bolinfest.com/essays/json.html)\n\n[Douglas Crockford](http://www.crockford.com/) of course designed and built\nJSON, but his state machine diagrams on the [JSON website](http://json.org/), as\ncheesy as it may sound, gave us motivation and confidence that building a new\nparser to implement these ideas was within reach! The original\nimplementation of JSON5 was also modeled directly off of Doug’s open-source\n[json_parse.js] parser. We’re grateful for that clean and well-documented\ncode.\n\n[json_parse.js]:\nhttps://github.com/douglascrockford/JSON-js/blob/master/json_parse.js\n\n[Max Nanasy](https://github.com/MaxNanasy) has been an early and prolific\nsupporter, contributing multiple patches and ideas.\n\n[Andrew Eisenberg](https://github.com/aeisenberg) contributed the original\n`stringify` method.\n\n[Jordan Tucker](https://github.com/jordanbtucker) has aligned JSON5 more closely\nwith ES5, wrote the official JSON5 specification, completely rewrote the\ncodebase from the ground up, and is actively maintaining this project.\n#is-symbol <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\n[![browser support][9]][10]\n\nIs this an ES6 Symbol value?\n\n## Example\n\n```js\nvar isSymbol = require('is-symbol');\nassert(!isSymbol(function () {}));\nassert(!isSymbol(null));\nassert(!isSymbol(function* () { yield 42; return Infinity; });\n\nassert(isSymbol(Symbol.iterator));\nassert(isSymbol(Symbol('foo')));\nassert(isSymbol(Symbol.for('foo')));\nassert(isSymbol(Object(Symbol('foo'))));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[1]: https://npmjs.org/package/is-symbol\n[2]: http://versionbadg.es/ljharb/is-symbol.svg\n[3]: https://travis-ci.org/ljharb/is-symbol.svg\n[4]: https://travis-ci.org/ljharb/is-symbol\n[5]: https://david-dm.org/ljharb/is-symbol.svg\n[6]: https://david-dm.org/ljharb/is-symbol\n[7]: https://david-dm.org/ljharb/is-symbol/dev-status.svg\n[8]: https://david-dm.org/ljharb/is-symbol#info=devDependencies\n[9]: https://ci.testling.com/ljharb/is-symbol.png\n[10]: https://ci.testling.com/ljharb/is-symbol\n[11]: https://nodei.co/npm/is-symbol.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/is-symbol.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/is-symbol.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=is-symbol\n# nice-try\n\n[](https://travis-ci.org/electerious/nice-try) [](https://ci.appveyor.com/project/electerious/nice-try) [](https://coveralls.io/github/electerious/nice-try?branch=master) [](https://david-dm.org/electerious/nice-try#info=dependencies) [](https://greenkeeper.io/)\n\nA function that tries to execute a function and discards any error that occurs.\n\n## Install\n\n```\nnpm install nice-try\n```\n\n## Usage\n\n```js\nconst niceTry = require('nice-try')\n\nniceTry(() => JSON.parse('true')) // true\nniceTry(() => JSON.parse('truee')) // undefined\nniceTry() // undefined\nniceTry(true) // undefined\n```\n\n## API\n\n### Parameters\n\n- `fn` `{Function}` Function that might or might not throw an error.\n\n### Returns\n\n- `{?*}` Return-value of the function when no error occurred.\n# asynckit [](https://www.npmjs.com/package/asynckit)\n\nMinimal async jobs utility library, with streams support.\n\n[](https://travis-ci.org/alexindigo/asynckit)\n[](https://travis-ci.org/alexindigo/asynckit)\n[](https://ci.appveyor.com/project/alexindigo/asynckit)\n\n[](https://coveralls.io/github/alexindigo/asynckit?branch=master)\n[](https://david-dm.org/alexindigo/asynckit)\n[](https://www.bithound.io/github/alexindigo/asynckit)\n\n<!-- [](https://www.npmjs.com/package/reamde) -->\n\nAsyncKit provides harness for `parallel` and `serial` iterators over list of items represented by arrays or objects.\nOptionally it accepts abort function (should be synchronously return by iterator for each item), and terminates left over jobs upon an error event. For specific iteration order built-in (`ascending` and `descending`) and custom sort helpers also supported, via `asynckit.serialOrdered` method.\n\nIt ensures async operations to keep behavior more stable and prevent `Maximum call stack size exceeded` errors, from sync iterators.\n\n| compression | size |\n| :----------------- | -------: |\n| asynckit.js | 12.34 kB |\n| asynckit.min.js | 4.11 kB |\n| asynckit.min.js.gz | 1.47 kB |\n\n## Install\n\n```sh\n$ npm install --save asynckit\n```\n\n## Examples\n\n### Parallel Jobs\n\nRuns iterator over provided array in parallel. Stores output in the `result` array,\non the matching positions. In unlikely event of an error from one of the jobs,\nwill terminate rest of the active jobs (if abort function is provided)\nand return error along with salvaged data to the main callback function.\n\n#### Input Array\n\n```javascript\nvar parallel = require('asynckit').parallel\n , assert = require('assert')\n ;\n\nvar source = [ 1, 1, 4, 16, 64, 32, 8, 2 ]\n , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]\n , expectedTarget = [ 1, 1, 2, 4, 8, 16, 32, 64 ]\n , target = []\n ;\n\nparallel(source, asyncJob, function(err, result)\n{\n assert.deepEqual(result, expectedResult);\n assert.deepEqual(target, expectedTarget);\n});\n\n// async job accepts one element from the array\n// and a callback function\nfunction asyncJob(item, cb)\n{\n // different delays (in ms) per item\n var delay = item * 25;\n\n // pretend different jobs take different time to finish\n // and not in consequential order\n var timeoutId = setTimeout(function() {\n target.push(item);\n cb(null, item * 2);\n }, delay);\n\n // allow to cancel \"leftover\" jobs upon error\n // return function, invoking of which will abort this job\n return clearTimeout.bind(null, timeoutId);\n}\n```\n\nMore examples could be found in [test/test-parallel-array.js](test/test-parallel-array.js).\n\n#### Input Object\n\nAlso it supports named jobs, listed via object.\n\n```javascript\nvar parallel = require('asynckit/parallel')\n , assert = require('assert')\n ;\n\nvar source = { first: 1, one: 1, four: 4, sixteen: 16, sixtyFour: 64, thirtyTwo: 32, eight: 8, two: 2 }\n , expectedResult = { first: 2, one: 2, four: 8, sixteen: 32, sixtyFour: 128, thirtyTwo: 64, eight: 16, two: 4 }\n , expectedTarget = [ 1, 1, 2, 4, 8, 16, 32, 64 ]\n , expectedKeys = [ 'first', 'one', 'two', 'four', 'eight', 'sixteen', 'thirtyTwo', 'sixtyFour' ]\n , target = []\n , keys = []\n ;\n\nparallel(source, asyncJob, function(err, result)\n{\n assert.deepEqual(result, expectedResult);\n assert.deepEqual(target, expectedTarget);\n assert.deepEqual(keys, expectedKeys);\n});\n\n// supports full value, key, callback (shortcut) interface\nfunction asyncJob(item, key, cb)\n{\n // different delays (in ms) per item\n var delay = item * 25;\n\n // pretend different jobs take different time to finish\n // and not in consequential order\n var timeoutId = setTimeout(function() {\n keys.push(key);\n target.push(item);\n cb(null, item * 2);\n }, delay);\n\n // allow to cancel \"leftover\" jobs upon error\n // return function, invoking of which will abort this job\n return clearTimeout.bind(null, timeoutId);\n}\n```\n\nMore examples could be found in [test/test-parallel-object.js](test/test-parallel-object.js).\n\n### Serial Jobs\n\nRuns iterator over provided array sequentially. Stores output in the `result` array,\non the matching positions. In unlikely event of an error from one of the jobs,\nwill not proceed to the rest of the items in the list\nand return error along with salvaged data to the main callback function.\n\n#### Input Array\n\n```javascript\nvar serial = require('asynckit/serial')\n , assert = require('assert')\n ;\n\nvar source = [ 1, 1, 4, 16, 64, 32, 8, 2 ]\n , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]\n , expectedTarget = [ 0, 1, 2, 3, 4, 5, 6, 7 ]\n , target = []\n ;\n\nserial(source, asyncJob, function(err, result)\n{\n assert.deepEqual(result, expectedResult);\n assert.deepEqual(target, expectedTarget);\n});\n\n// extended interface (item, key, callback)\n// also supported for arrays\nfunction asyncJob(item, key, cb)\n{\n target.push(key);\n\n // it will be automatically made async\n // even it iterator \"returns\" in the same event loop\n cb(null, item * 2);\n}\n```\n\nMore examples could be found in [test/test-serial-array.js](test/test-serial-array.js).\n\n#### Input Object\n\nAlso it supports named jobs, listed via object.\n\n```javascript\nvar serial = require('asynckit').serial\n , assert = require('assert')\n ;\n\nvar source = [ 1, 1, 4, 16, 64, 32, 8, 2 ]\n , expectedResult = [ 2, 2, 8, 32, 128, 64, 16, 4 ]\n , expectedTarget = [ 0, 1, 2, 3, 4, 5, 6, 7 ]\n , target = []\n ;\n\nvar source = { first: 1, one: 1, four: 4, sixteen: 16, sixtyFour: 64, thirtyTwo: 32, eight: 8, two: 2 }\n , expectedResult = { first: 2, one: 2, four: 8, sixteen: 32, sixtyFour: 128, thirtyTwo: 64, eight: 16, two: 4 }\n , expectedTarget = [ 1, 1, 4, 16, 64, 32, 8, 2 ]\n , target = []\n ;\n\nserial(source, asyncJob, function(err, result)\n{\n assert.deepEqual(result, expectedResult);\n assert.deepEqual(target, expectedTarget);\n});\n\n// shortcut interface (item, callback)\n// works for object as well as for the arrays\nfunction asyncJob(item, cb)\n{\n target.push(item);\n\n // it will be automatically made async\n // even it iterator \"returns\" in the same event loop\n cb(null, item * 2);\n}\n```\n\nMore examples could be found in [test/test-serial-object.js](test/test-serial-object.js).\n\n_Note: Since _object_ is an _unordered_ collection of properties,\nit may produce unexpected results with sequential iterations.\nWhenever order of the jobs' execution is important please use `serialOrdered` method._\n\n### Ordered Serial Iterations\n\nTBD\n\nFor example [compare-property](compare-property) package.\n\n### Streaming interface\n\nTBD\n\n## Want to Know More?\n\nMore examples can be found in [test folder](test/).\n\nOr open an [issue](https://github.com/alexindigo/asynckit/issues) with questions and/or suggestions.\n\n## License\n\nAsyncKit is licensed under the MIT license.\n# assign-symbols [](http://badge.fury.io/js/assign-symbols)\n\n> Assign the enumerable es6 Symbol properties from an object (or objects) to the first object passed on the arguments. Can be used as a supplement to other extend, assign or merge methods as a polyfill for the Symbols part of the es6 Object.assign method.\n\nFrom the [Mozilla Developer docs for Symbol](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol):\n\n> A symbol is a unique and immutable data type and may be used as an identifier for object properties. The symbol object is an implicit object wrapper for the symbol primitive data type.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i assign-symbols --save\n```\n\n## Usage\n\n```js\nvar assignSymbols = require('assign-symbols');\nvar obj = {};\n\nvar one = {};\nvar symbolOne = Symbol('aaa');\none[symbolOne] = 'bbb';\n\nvar two = {};\nvar symbolTwo = Symbol('ccc');\ntwo[symbolTwo] = 'ddd';\n\nassignSymbols(obj, one, two);\n\nconsole.log(obj[symbolOne]);\n//=> 'bbb'\nconsole.log(obj[symbolTwo]);\n//=> 'ddd'\n```\n\n## Similar projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties of source objects to a destination object. | [homepage](https://github.com/jonschlinkert/assign-deep)\n* [clone-deep](https://www.npmjs.com/package/clone-deep): Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives. | [homepage](https://github.com/jonschlinkert/clone-deep)\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow)\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/assign-symbols/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on November 06, 2015._\n# React Hot Loader\n\n[![Build Status][build-badge]][build] [![version][version-badge]][package]\n[![Code Coverage][coverage-badge]][coverage]\n[![MIT License][license-badge]][license]\n\n[![PRs Welcome][prs-badge]][prs] [![Chat][chat-badge]][chat]\n[![Backers on Open Collective][oc-backer-badge]](#backers)\n[![Sponsors on Open Collective][oc-sponsor-badge]](#sponsors)\n\n[![Watch on GitHub][github-watch-badge]][github-watch]\n[![Star on GitHub][github-star-badge]][github-star]\n\nTweak React components in real time ⚛️⚡️\n\nWatch\n**[Dan Abramov's talk on Hot Reloading with Time Travel](https://www.youtube.com/watch?v=xsSnOQynTHs).**\n\n## Install\n\n```\nnpm install react-hot-loader\n```\n\n> Note: You can safely install react-hot-loader as a regular dependency instead\n> of a dev dependency as it automatically ensures it is not executed in\n> production and the footprint is minimal.\n\n## 🔥 HOT-LABS 🔥\n\nLatest (4.5.0+) version of React-Hot-Loader could be quite 🔥!\n\n> RHL will patch React, replace React-DOM by React-🔥-DOM and work with fiber directly\n\n* (required) [use webpack plugin](https://github.com/gaearon/react-hot-loader#webpack-plugin) to let RHL patch React-DOM for you.\n* (alternative) [use react-🔥-dom](https://github.com/gaearon/react-hot-loader#react--dom) to use already patched React-DOM.\n\n## Getting started\n\n1. Add `react-hot-loader/babel` to your `.babelrc`:\n\n```js\n// .babelrc\n{\n \"plugins\": [\"react-hot-loader/babel\"]\n}\n```\n\n2. Mark your root component as _hot-exported_:\n\n```js\n// App.js\nimport { hot } from 'react-hot-loader/root'\nconst App = () => <div>Hello World!</div>\nexport default hot(App)\n```\n\n3. Make sure `react-hot-loader` is required before `react`.\n\n* or `import 'react-hot-loader'` in your main file (before React)\n* or have at least one variable in the same file (babel/webpack plugin would import react-hot-loader then)\n* or prepend your webpack entry point with `react-hot-loader/patch`, which will `import 'react-hot-loader'`, and nothing more.\n\nKeep in mind - the same rule is applied to `react-dom`, as long as it would (since 16.8.6) import `react` internally.\nReact-hot-loader, to prevent dependency cycles(#1209), caused by the code it injects, **should be imported first**.\n\n### Old API\n\n**Note:** There is also an old version of `hot`, used prior to version 4.5.4. **Please use the new one**,\nas it is much more resilient to js errors that you may make during development.\n\nMeanwhile, not all the bundlers are compatible with new `/root` API, for example **[parcel](http://parceljs.org/) is not**.\n\nReact-Hot-Load will throw an error, asking you to use the old API, if such incompatibility would be detected.\nIt is almost the same, but you have to pass `module` inside `hot`.\n\n```js\nimport { hot } from 'react-hot-loader'\nconst App = () => <div>Hello World!</div>\nexport default hot(module)(App)\n```\n\n3. [Run webpack with Hot Module Replacement](https://webpack.js.org/guides/hot-module-replacement/#enabling-hmr):\n\n```sh\nwebpack-dev-server --hot\n```\n\n## Limitations\n\n* (that's the goal) React-Hot-Loader would not change the past, only update the present - no lifecycle event would be called on component update.\n As a result - all the code changes, you may made among `componentWillUnmount` or `componentDidMount`, would be ignored for\n already created components.\n* (that's the goal) React-Hot-Loader would not update any object, including component `state`.\n* (1%) React-Hot-Loader could not reply some changes you may made in components `constructors`. As long as\n components would not be recreated - RHL have to _inject_ new data onto existing components, but there is no way to detect the actual change and the way reply it.\n React-Hot-Loader knows what class method is, not how you created it. See #1001 for details.\n\n## Recipes\n\n### Migrating from [create-react-app](https://github.com/facebookincubator/create-react-app)\n\n1. Run `npm run eject`\n2. Install React Hot Loader (`npm install --save-dev react-hot-loader`)\n3. In `config/webpack.config.dev.js`, add `'react-hot-loader/babel'` to Babel\n loader configuration. The loader should now look like:\n\n```js\n {\n test: /\\.(js|jsx)$/,\n include: paths.appSrc,\n loader: require.resolve('babel-loader'),\n options: {\n // This is a feature of `babel-loader` for webpack (not Babel itself).\n // It enables caching results in ./node_modules/.cache/babel-loader/\n // directory for faster rebuilds.\n cacheDirectory: true,\n plugins: ['react-hot-loader/babel'],\n },\n }\n```\n\n4. Mark your App (`src/App.js`) as _hot-exported_:\n\n```js\n// ./containers/App.js\nimport React from 'react'\nimport { hot } from 'react-hot-loader'\n\nconst App = () => <div>Hello World!</div>\n\nexport default hot(module)(App)\n```\n\n### Migrating from [create-react-app](https://github.com/facebookincubator/create-react-app) without ejecting\n\nUsers [report](https://github.com/gaearon/react-hot-loader/pull/729#issuecomment-354097936), that it is possible to use [react-app-rewire-hot-loader](https://github.com/cdharris/react-app-rewire-hot-loader) to setup React-hot-loader without ejecting.\n\n### TypeScript\n\nAs of version 4, React Hot Loader requires you to pass your code through [Babel](http://babeljs.io/) to transform it so that it can be hot-reloaded. This can be a pain point for TypeScript users, who usually do not need to integrate Babel as part of their build process.\n\nFortunately, it's simpler than it may seem! Babel will happily parse TypeScript syntax and can act as an alternative to the TypeScript compiler, so you can safely replace `ts-loader` or `awesome-typescript-loader` in your Webpack configuration with `babel-loader`. Babel won't typecheck your code, but you can use [`fork-ts-checker-webpack-plugin`](https://github.com/Realytics/fork-ts-checker-webpack-plugin) (and/or invoke `tsc --noEmit`) as part of your build process instead.\n\nA sample configuration:\n\n```js\n{\n // ...you'll probably need to configure the usual Webpack fields like \"mode\" and \"entry\", too.\n resolve: { extensions: [\".ts\", \".tsx\", \".js\", \".jsx\"] },\n module: {\n rules: [\n {\n test: /\\.(j|t)sx?$/,\n exclude: /node_modules/,\n use: {\n loader: \"babel-loader\",\n options: {\n cacheDirectory: true,\n babelrc: false,\n presets: [\n [\n \"@babel/preset-env\",\n { targets: { browsers: \"last 2 versions\" } } // or whatever your project requires\n ],\n \"@babel/preset-typescript\",\n \"@babel/preset-react\"\n ],\n plugins: [\n // plugin-proposal-decorators is only needed if you're using experimental decorators in TypeScript\n [\"@babel/plugin-proposal-decorators\", { legacy: true }],\n [\"@babel/plugin-proposal-class-properties\", { loose: true }],\n \"react-hot-loader/babel\"\n ]\n }\n }\n }\n ]\n },\n plugins: [\n new ForkTsCheckerWebpackPlugin()\n ]\n};\n```\n\nFor a full example configuration of TypeScript with React Hot Loader and newest beta version of Babel, check [here](https://github.com/gaearon/react-hot-loader/tree/master/examples/typescript).\n\nAs an alternative to this approach, it's possible to chain Webpack loaders so that your code passes through Babel and then TypeScript (or TypeScript and then Babel), but this approach is not recommended as it is more complex and may be significantly less performant. Read more [discussion here](https://github.com/gaearon/react-hot-loader/issues/884).\n\n### Parcel\n\nParcel supports Hot Module Reloading out of the box, just follow step 1 and 2 of [Getting Started](https://github.com/gaearon/react-hot-loader/tree/master#getting-started).\n\nWe also have a [full example running Parcel + React Hot Loader](https://github.com/gaearon/react-hot-loader/tree/master/examples/parcel).\n\n### Electron\n\nYou need something to mark your modules as hot in order to use React Hot Loader.\n\nOne way of doing this with Electron is to simply use webpack like any web-based project might do and the general guide above describes. See also [this example Electron app](https://github.com/s-h-a-d-o-w/rhl-electron-quick-start).\n\nA webpack-less way of doing it to use `electron-compile` (which is also used by [`electron-forge`](https://electronforge.io)) - see [this example](https://github.com/rllola/hmr-example-issue-2). While it requires less configuration, something to keep in mind is that `electron-compile`'s HMR will always reload all modules, regardless of what was actually edited.\n\n### Source Maps\n\nIf you use `devtool: 'source-map'` (or its equivalent), source maps will be\nemitted to hide hot reloading code.\n\nSource maps slow down your project. Use `devtool: 'eval'` for best build\nperformance.\n\nHot reloading code is just one line in the beginning and one line at the end of\neach module so you might not need source maps at all.\n\n## Preact\n\nReact-hot-loader should work out of the box with `preact-compat`, but, in case of pure preact, you will need\nto configure it:\n\n* create configuration file (setupHotLoader.js)\n\n```js\nimport reactHotLoader from 'react-hot-loader'\nimport preact from 'preact'\n\nreactHotLoader.preact(preact)\n```\n\n* dont forget to import it\n\n#### Preact limitations\n\n* HOCs and Decorators as not supported yet. For Preact React-Hot-Loader v4 behave as v3.\n\n## React Native\n\nReact Native\n**[supports hot reloading natively](https://facebook.github.io/react-native/blog/2016/03/24/introducing-hot-reloading.html)**\nas of version 0.22.\n\nUsing React Hot Loader with React Native can cause unexpected issues (see #824) and is not recommended.\n\n## Webpack plugin\n\nWe recommend using the `babel` plugin, but there are some situations where you are unable to. If so, try the `webpack` plugin / `webpack-loader` (as seen in v3).\n\nRemember - the `webpack` plugin is **not compatible** with class-based components. The `babel` plugin\nwill inject special methods to every class, to make `class members` (like onClick) hot-updatable, while the `webpack` plugin would leave classes as is, without any _instrumentation_.\n\n```js\nclass MyComponent extends React.Component {\n onClick = () => this.setState() // COULD NOT UPDATE\n variable = 1 // this is ok\n render() {} // this is ok\n}\n```\n\nBut `webpack-loader` could help with TypeScript or _spreading_ \"cold API\" [to all node_modules](https://github.com/gaearon/react-hot-loader#disabling-a-type-change-for-all-node_modules).\n\n> It is safe to enable this loader for all the files. But place it after babel-loader, if babel-loader is present.\n\n```js\n// webpack.config.js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.jsx?$/,\n include: /node_modules/,\n use: ['react-hot-loader/webpack'],\n },\n ],\n },\n}\n```\n\nWebpack plugin will also land a \"hot\" patch to react-dom, making React-Hot-Loader more compliant to [the principles](https://github.com/gaearon/react-hot-loader/issues/1118).\n\n## React-🔥-Dom\n\nAnother way to make RHL more compliant is to use _our_ version of React-Dom - [hot-loader/react-dom](https://github.com/hot-loader/react-dom)\n\nIt is the same React-Dom, with the same version, just with our patches already landed inside.\n\nThere is 2 ways to install it:\n\n* Use **yarn** name resolution, so `@hot-loader/react-dom` would be installed instead of `react-dom`\n\n```\nyarn add react-dom@npm:@hot-loader/react-dom\n```\n\n* Use webpack **aliases**\n\n```js\n// webpack.conf\n...\nresolve: {\n alias: {\n 'react-dom': '@hot-loader/react-dom'\n }\n}\n...\n```\n\n### Code Splitting\n\nIf you want to use Code Splitting + React Hot Loader, the simplest solution is to pick one of our compatible library:\n\n* [Loadable Components](https://github.com/smooth-code/loadable-components/)\n* [Imported Component](https://github.com/theKashey/react-imported-component)\n* [React Universal Component](https://github.com/faceyspacey/react-universal-component)\n* [React-Loadable](https://github.com/jamiebuilds/react-loadable)\n\nIf you use a non-yet-friendly library, like [react-async-component](github.com/ctrlplusb/react-async-component) you have to mark all your \"loaded components\" as _hot-exported_:\n\n```js\n// AsyncHello.js\nimport { asyncComponent } from 'react-async-component'\n\n// asyncComponent could not `hot-reload` itself.\nconst AsyncHello = asyncComponent({\n resolve: () => import('./Hello'),\n})\n\nexport default AsyncHello\n```\n\n```js\n// Hello.js\nimport { hot } from 'react-hot-loader'\n\nconst Hello = () => 'Hello'\n\nexport default hot(module)(Hello) // <-- module will reload itself\n```\n\n### Checking Element `type`s\n\nBecause React Hot Loader creates proxied versions of your components, comparing\nreference types of elements won't work:\n\n```js\nconst element = <Component />\nconsole.log(element.type === Component) // false\n```\n\nReact Hot Loader exposes a function `areComponentsEqual` to make it possible:\n\n```js\nimport { areComponentsEqual } from 'react-hot-loader'\nconst element = <Component />\nareComponentsEqual(element.type, Component) // true\n```\n\nAnother way - compare \"rendered\" element type\n\n```js\nconst element = <Component />\nconsole.log(element.type === <Component />.type) // true\n\n// better - precache rendered type\nconst element = <Component />\nconst ComponentType = <Component />.type\nconsole.log(element.type === ComponentType) // true\n```\n\nBut you might have to provide all required props. See [original issue](https://github.com/gaearon/react-hot-loader/issues/304).\nThis is most reliable way to compare components, but it will not work with required props.\n\nAnother way - compare Component name.\n\n> Not all components has a name. **In production displayName could not exists.**\n\n```js\nconst element = <Component />\nconsole.log(element.displayName === 'Component') // true\n```\n\nThis is something we did not solve yet. Cold API could help keep original types.\n\n### Webpack ExtractTextPlugin\n\nwebpack ExtractTextPlugin is not compatible with React Hot Loader. Please disable it in development:\n\n```js\nnew ExtractTextPlugin({\n filename: 'styles/[name].[contenthash].css',\n disable: NODE_ENV !== 'production',\n})\n```\n\n#### Disabling a type change (❄️)\n\nIt is possible to disable React-Hot-Loader for a specific component, especially to\nenable common way to type comparison.\nSee #991 for the idea behind ⛄️, and #304 about \"type comparison\" problem.\n\n```js\nimport { cold } from 'react-hot-loader';\n\ncold(SomeComponent) // this component will ignored by React-Hot-Loader\n<SomeComponent />.type === SomeComponent // true\n```\n\nIf you will update `cold` component React-Hot-Loader will complain (on error level), and then\nReact will cold-replace Component with a internal state lose.\n\n> Reach-Hot-Loader: cold element got updated\n\n##### Disabling a type change for all node_modules\n\nYou may _cold_ all components from node_modules. This will not work for HOC(like Redux) or dynamically created Components, but might help in most of situations, when type changes\nare not welcomed, and modules are not expected to change.\n\n```js\nimport { setConfig, cold } from 'react-hot-loader'\nsetConfig({\n onComponentRegister: (type, name, file) =>\n file.indexOf('node_modules') > 0 && cold(type),\n\n // some components are not visible as top level variables,\n // thus its not known where they were created\n onComponentCreate: (type, name) => name.indexOf('styled') > 0 && cold(type),\n})\n```\n\n! To be able to \"cold\" components from 'node_modules' you have to apply babel to node_modules, while this\nfolder is usually excluded.\nYou may add one more babel-loader, with only one React-Hot-Loader plugin inside to solve this.\n**Consider using webpack-loader** for this.\n\n##### React-Hooks\n\nReact hooks are not _really_ supported by React-Hot-Loader. Mostly due to our internal\nprocesses of re-rendering React Tree, which is required to reconcile an updated application\nbefore React will try to rerender it, and fail to do that, obviously.\n\n* hooks **should work** for versions 4.6.0 and above (`pureSFC` is enabled by default).\n* hooks will produce **errors** on every hot-update without patches to `react-dom`.\n* hooks **may loss the state** without patches to `react-dom`.\n* hooks does not support adding new hooks on the fly\n* change in hooks for a mounted components will cause a runtime exception, and a `retry` button (at the nearest class component) will be shown.\n Pressing a `retry` button will basically remount tree branch.\n\nTo mitigate any hook-related issues (and disable their hot-reloadability) - `cold` them.\n\n* _cold_ components using hooks.\n\n```js\nimport { setConfig, cold } from 'react-hot-loader'\nsetConfig({\n onComponentCreate: (type, name) =>\n (String(type).indexOf('useState') > 0 ||\n String(type).indexOf('useEffect') > 0) &&\n cold(type),\n})\n```\n\n## API\n\n### `hot(Component, options)`\n\nMark a component as hot.\n\n#### Babel plugin\n\nRight now babel plugin has only one option, enabled by default.\n\n* `safetyNet` - will help you properly setup ReactHotLoader.\n\nYou may disable it to get more control on the module execution order.\n\n```js\n//.babelrc\n{\n \"plugins\": [\n [\n \"react-hot-loader/babel\",\n {\n \"safetyNet\": false\n }\n ]\n ]\n}\n```\n\n#### Important\n\n**!!** Use `hot` only for module `exports`, not for module `imports`. **!!**\n\n```js\nimport { hot } from 'react-hot-loader/root'\n\nconst App = () => 'Hello World!'\n\nexport default hot(App)\n```\n\nKeep in mind - by importing `react-hot-loader/root` you are setting up a boundary for update event propagation.\n\nThe higher(in module hierarchy) you have it - the more stuff would be updated on Hot Module Replacement.\n\nTo make RHL more reliable and safe, please place `hot` _below_ (ie somewhere in _imported_ modules):\n\n* react-dom\n* redux store creation\n* any data, you want to preserve between updates\n* big libraries\n\nYou may(but it's not required) place `hot` to the every route/page/feature/lazy chunk, thus make updates more scoped.\n\nYou don't need to wrap every component with `hot`, application work work fine with a single one.\n\n### (old)`hot(module, options)(Component, options)`\n\nMark a component as hot. The \"new\" hot is just hidding the first part - `hot(module)`, giving you\nonly the second `(App)`. The \"new\" hot is using old API.\n\n```js\nimport { hot } from 'react-hot-loader'\n\nconst App = () => 'Hello World!'\n\nexport default hot(module)(App)\n```\n\n### `AppContainer`\n\nMark application as hot reloadable. (**Prefer** using `hot` helper, see below for migration details).\n\nThis low-level approach lets you make **hot **imports\\_\\_, not exports.\n\n```js\nimport React from 'react'\nimport ReactDOM from 'react-dom'\nimport { AppContainer } from 'react-hot-loader'\nimport App from './containers/App'\n\nconst render = Component => {\n ReactDOM.render(\n <AppContainer>\n <Component />\n </AppContainer>,\n document.getElementById('root'),\n )\n}\n\nrender(App)\n\n// webpack Hot Module Replacement API\nif (module.hot) {\n // keep in mind - here you are configuring HMR to accept CHILDREN MODULE\n // while `hot` would configure HMR for the CURRENT module\n module.hot.accept('./containers/App', () => {\n // if you are using harmony modules ({modules:false})\n render(App)\n // in all other cases - re-require App manually\n render(require('./containers/App'))\n })\n}\n```\n\n### areComponentsEqual(Component1, Component2)\n\nTest if two components have the same type.\n\n```js\nimport { areComponentsEqual } from 'react-hot-loader'\nimport Component1 from './Component1'\nimport Component2 from './Component2'\n\nareComponentsEqual(Component1, Component2) // true or false\n```\n\n### setConfig(config)\n\nSet a new configuration for React Hot Loader.\n\nAvailable options are:\n\n* `logLevel`: specify log level, default to `\"error\"`, available values are: `['debug', 'log', 'warn', 'error']`\n* `pureSFC`: enable Stateless Functional Component. If disabled they will be converted to React Components.\n Default value: false.\n* `ignoreSFC`: skip \"patch\" for SFC. \"Hot loading\" could still work, wit webpack-patch present\n* `pureRender`: do not amend `render` method of any component.\n* for the rest see [index.d.ts](https://github.com/gaearon/react-hot-loader/blob/master/index.d.ts#L62-L133).\n\n```js\n// rhlConfig.js\nimport { setConfig } from 'react-hot-loader'\n\nsetConfig({ logLevel: 'debug' })\n```\n\n**It is important** to set configuration before any other action will take a place\n\n```js\n// index.js\nimport './rhlConfig' // <-- extract configuration to a separate file, and import it in the beggining\nimport React from 'react'\n....\n```\n\n## Migrating from v3\n\n### AppContainer vs hot\n\nPrior v4 the right way to setup React Hot Loader was to wrap your Application\nwith `AppContainer`, set setup module acceptance by yourself. This approach is\nstill valid but only for advanced use cases, prefer using `hot` helper.\n\n**React Hot Loader v3:**\n\n```js\n// App.js\nimport React from 'react'\n\nconst App = () => <div>Hello world!</div>\n\nexport default App\n```\n\n```js\n// main.js\nimport React from 'react'\nimport ReactDOM from 'react-dom'\nimport { AppContainer } from 'react-hot-loader'\nimport App from './containers/App'\n\nconst render = Component => {\n ReactDOM.render(\n <AppContainer>\n <Component />\n </AppContainer>,\n document.getElementById('root'),\n )\n}\n\nrender(App)\n\n// webpack Hot Module Replacement API\nif (module.hot) {\n module.hot.accept('./containers/App', () => {\n // if you are using harmony modules ({modules:false})\n render(App)\n // in all other cases - re-require App manually\n render(require('./containers/App'))\n })\n}\n```\n\n**React Hot Loader v4:**\n\n```js\n// App.js\nimport React from 'react'\nimport { hot } from 'react-hot-loader'\n\nconst App = () => <div>Hello world!</div>\n\nexport default hot(module)(App)\n```\n\n```js\n// main.js\nimport React from 'react'\nimport ReactDOM from 'react-dom'\nimport App from './containers/App'\n\nReactDOM.render(<App />, document.getElementById('root'))\n```\n\n### Patch is optional\n\n> Since 4.0 till 4.8\n\nCode is automatically patched, you can safely remove `react-hot-loader/patch` from your webpack config,\nif react-hot-loader is required before React in any other way.\n\n### Error Boundary is inside every component\n\n> Since 4.5.4\n\nOn Hot Module Update we will inject `componentDidCatch` and a _special_ `render`\nto every Class-based component you have, making [Error Boundaries](https://reactjs.org/docs/error-boundaries.html#introducing-error-boundaries) more local.\n\nAfter update we will remove all sugar, keeping only Boundaries you've created.\n\nYou can provide your own `errorReporter`, via `setConfig({errorReporter})` or opt-out from\nroot ErrorBoundaries setting `errorBoundary={false}` prop on `AppContainer` or `hot`.\nHowever - this option affects only SFC behavior, and any ClassComponent would boundary itself.\n\n```js\nimport { setConfig } from 'react-hot-loader'\nimport ErrorBoundary from './ErrorBoundary'\n\n// ErrorBoundary will be given error and errorInfo prop.\nsetConfig({ errorReporter: ErrorBoundary })\n```\n\nIf `errorReporter` is not set - full screen error overlay would be shown.\n\n#### Setting global Error Reporter\n\nGlobal Error Reporter would, created a fixed overlay on top the page,\nwould be used to display errors, not handled by `errorReporter`, and\nany HMR error.\n\nYou may change, or disable this global error overlay\n\n```js\n// to disable\nsetConfig({ ErrorOverlay: () => null })\n\n// to change\nsetConfig({ ErrorOverlay: MyErrorOverlay })\n```\n\nThe UX of existing overlay is a subject to change, and we are open to any proposals.\n\n## Known limitations and side effects\n\n### Note about `hot`\n\n`hot` accepts only React Component (Stateful or Stateless), resulting the `HotExported` variant of it.\nThe `hot` function will setup current module to _self-accept_ itself on reload, and will **ignore** all the changes, made for non-React components.\nYou may mark as many modules as you want. But `HotExportedComponent` **should be the only used export** of a _hot_-module.\n\n> Note: Please note how often we have used `exported` keyword. `hot` is for exports.\n\n> Note: Does nothing in production mode, just passes App through.\n\n### New Components keep executing the old code\n\nThere is no way to hot-update constructor code, as result even new components\nwill be born as the first ones, and then grow into the last ones. As of today, this issue cannot be solved.\n\n## Troubleshooting\n\nIf it doesn't work, in 99% of cases it's a configuration issue. A missing option, a\nwrong path or port. webpack is very strict about configuration, and the best way\nto find out what's wrong is to compare your project to an already working setup,\ncheck out\n**[examples](https://github.com/gaearon/react-hot-loader/tree/master/examples)**,\nbit by bit.\n\nIf something doesn't work, in 99% of cases it's an issue with your code. The Component\ndidn't get registered, due to HOC or Decorator around it, which is making it\ninvisible to the Babel plugin or webpack loader.\n\nWe're also gathering\n**[Troubleshooting Recipes](https://github.com/gaearon/react-hot-loader/blob/master/docs/Troubleshooting.md)**\nso send a PR if you have a lesson to share!\n\n### Switch into debug mode\n\nDebug mode adds additional warnings and can tells you why React Hot Loader is\nnot working properly in your application.\n\n```js\nimport { setConfig } from 'react-hot-loader'\nsetConfig({ logLevel: 'debug' })\n```\n\n## Contributors\n\nThis project exists thanks to all the people who contribute. [Contribute](CONTRIBUTING.md).\n[![contributors][oc-contributors-img]](https://github.com/gaearon/react-hot-loader/graphs/contributors)\n\n## Backers\n\nThank you to all our backers! 🙏 [Become a backer][oc-backer-link]\n[![backers][oc-backer-img]][oc-backer-link]\n\n## Sponsors\n\nSupport this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor][oc-sponsor-link]\n\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/5/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/6/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/7/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/8/avatar.svg\"></a>\n<a href=\"https://opencollective.com/react-hot-loader/sponsor/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/react-hot-loader/sponsor/9/avatar.svg\"></a>\n\n## License\n\nMIT\n\n[build-badge]: https://img.shields.io/travis/gaearon/react-hot-loader.svg?style=flat-square\n[build]: https://travis-ci.org/gaearon/react-hot-loader\n[coverage-badge]: https://img.shields.io/codecov/c/github/gaearon/react-hot-loader.svg?style=flat-square\n[coverage]: https://codecov.io/github/gaearon/react-hot-loader\n[version-badge]: https://img.shields.io/npm/v/react-hot-loader.svg?style=flat-square\n[package]: https://www.npmjs.com/package/react-hot-loader\n[license-badge]: https://img.shields.io/npm/l/react-hot-loader.svg?style=flat-square\n[license]: https://github.com/gaearon/react-hot-loader/blob/next/LICENSE\n[prs-badge]: https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square\n[prs]: http://makeapullrequest.com\n[chat]: https://gitter.im/gaearon/react-hot-loader\n[chat-badge]: https://img.shields.io/gitter/room/gaearon/react-hot-loader.svg?style=flat-square\n[github-watch-badge]: https://img.shields.io/github/watchers/gaearon/react-hot-loader.svg?style=social\n[github-watch]: https://github.com/gaearon/react-hot-loader/watchers\n[github-star-badge]: https://img.shields.io/github/stars/gaearon/react-hot-loader.svg?style=social\n[github-star]: https://github.com/gaearon/react-hot-loader/stargazers\n[oc-backer-badge]: https://opencollective.com/react-hot-loader/backers/badge.svg\n[oc-sponsor-badge]: https://opencollective.com/react-hot-loader/sponsors/badge.svg\n[oc-contributors-img]: https://opencollective.com/react-hot-loader/contributors.svg?width=890&button=false\n[oc-backer-img]: https://opencollective.com/react-hot-loader/backers.svg?width=890\n[oc-backer-link]: https://opencollective.com/react-hot-loader#backers\n[oc-sponsor-link]: https://opencollective.com/react-hot-loader#sponsor\n# verror: rich JavaScript errors\n\nThis module provides several classes in support of Joyent's [Best Practices for\nError Handling in Node.js](http://www.joyent.com/developers/node/design/errors).\nIf you find any of the behavior here confusing or surprising, check out that\ndocument first.\n\nThe error classes here support:\n\n* printf-style arguments for the message\n* chains of causes\n* properties to provide extra information about the error\n* creating your own subclasses that support all of these\n\nThe classes here are:\n\n* **VError**, for chaining errors while preserving each one's error message.\n This is useful in servers and command-line utilities when you want to\n propagate an error up a call stack, but allow various levels to add their own\n context. See examples below.\n* **WError**, for wrapping errors while hiding the lower-level messages from the\n top-level error. This is useful for API endpoints where you don't want to\n expose internal error messages, but you still want to preserve the error chain\n for logging and debugging.\n* **SError**, which is just like VError but interprets printf-style arguments\n more strictly.\n* **MultiError**, which is just an Error that encapsulates one or more other\n errors. (This is used for parallel operations that return several errors.)\n\n# Quick start\n\nFirst, install the package:\n\n npm install verror\n\nIf nothing else, you can use VError as a drop-in replacement for the built-in\nJavaScript Error class, with the addition of printf-style messages:\n\n```javascript\nvar err = new VError('missing file: \"%s\"', '/etc/passwd');\nconsole.log(err.message);\n```\n\nThis prints:\n\n missing file: \"/etc/passwd\"\n\nYou can also pass a `cause` argument, which is any other Error object:\n\n```javascript\nvar fs = require('fs');\nvar filename = '/nonexistent';\nfs.stat(filename, function (err1) {\n\tvar err2 = new VError(err1, 'stat \"%s\"', filename);\n\tconsole.error(err2.message);\n});\n```\n\nThis prints out:\n\n stat \"/nonexistent\": ENOENT, stat '/nonexistent'\n\nwhich resembles how Unix programs typically report errors:\n\n $ sort /nonexistent\n sort: open failed: /nonexistent: No such file or directory\n\nTo match the Unixy feel, when you print out the error, just prepend the\nprogram's name to the VError's `message`. Or just call\n[node-cmdutil.fail(your_verror)](https://github.com/joyent/node-cmdutil), which\ndoes this for you.\n\nYou can get the next-level Error using `err.cause()`:\n\n```javascript\nconsole.error(err2.cause().message);\n```\n\nprints:\n\n ENOENT, stat '/nonexistent'\n\nOf course, you can chain these as many times as you want, and it works with any\nkind of Error:\n\n```javascript\nvar err1 = new Error('No such file or directory');\nvar err2 = new VError(err1, 'failed to stat \"%s\"', '/junk');\nvar err3 = new VError(err2, 'request failed');\nconsole.error(err3.message);\n```\n\nThis prints:\n\n request failed: failed to stat \"/junk\": No such file or directory\n\nThe idea is that each layer in the stack annotates the error with a description\nof what it was doing. The end result is a message that explains what happened\nat each level.\n\nYou can also decorate Error objects with additional information so that callers\ncan not only handle each kind of error differently, but also construct their own\nerror messages (e.g., to localize them, format them, group them by type, and so\non). See the example below.\n\n# Deeper dive\n\nThe two main goals for VError are:\n\n* **Make it easy to construct clear, complete error messages intended for\n people.** Clear error messages greatly improve both user experience and\n debuggability, so we wanted to make it easy to build them. That's why the\n constructor takes printf-style arguments.\n* **Make it easy to construct objects with programmatically-accessible\n metadata** (which we call _informational properties_). Instead of just saying\n \"connection refused while connecting to 192.168.1.2:80\", you can add\n properties like `\"ip\": \"192.168.1.2\"` and `\"tcpPort\": 80`. This can be used\n for feeding into monitoring systems, analyzing large numbers of Errors (as\n from a log file), or localizing error messages.\n\nTo really make this useful, it also needs to be easy to compose Errors:\nhigher-level code should be able to augment the Errors reported by lower-level\ncode to provide a more complete description of what happened. Instead of saying\n\"connection refused\", you can say \"operation X failed: connection refused\".\nThat's why VError supports `causes`.\n\nIn order for all this to work, programmers need to know that it's generally safe\nto wrap lower-level Errors with higher-level ones. If you have existing code\nthat handles Errors produced by a library, you should be able to wrap those\nErrors with a VError to add information without breaking the error handling\ncode. There are two obvious ways that this could break such consumers:\n\n* The error's name might change. People typically use `name` to determine what\n kind of Error they've got. To ensure compatibility, you can create VErrors\n with custom names, but this approach isn't great because it prevents you from\n representing complex failures. For this reason, VError provides\n `findCauseByName`, which essentially asks: does this Error _or any of its\n causes_ have this specific type? If error handling code uses\n `findCauseByName`, then subsystems can construct very specific causal chains\n for debuggability and still let people handle simple cases easily. There's an\n example below.\n* The error's properties might change. People often hang additional properties\n off of Error objects. If we wrap an existing Error in a new Error, those\n properties would be lost unless we copied them. But there are a variety of\n both standard and non-standard Error properties that should _not_ be copied in\n this way: most obviously `name`, `message`, and `stack`, but also `fileName`,\n `lineNumber`, and a few others. Plus, it's useful for some Error subclasses\n to have their own private properties -- and there'd be no way to know whether\n these should be copied. For these reasons, VError first-classes these\n information properties. You have to provide them in the constructor, you can\n only fetch them with the `info()` function, and VError takes care of making\n sure properties from causes wind up in the `info()` output.\n\nLet's put this all together with an example from the node-fast RPC library.\nnode-fast implements a simple RPC protocol for Node programs. There's a server\nand client interface, and clients make RPC requests to servers. Let's say the\nserver fails with an UnauthorizedError with message \"user 'bob' is not\nauthorized\". The client wraps all server errors with a FastServerError. The\nclient also wraps all request errors with a FastRequestError that includes the\nname of the RPC call being made. The result of this failed RPC might look like\nthis:\n\n name: FastRequestError\n message: \"request failed: server error: user 'bob' is not authorized\"\n rpcMsgid: <unique identifier for this request>\n rpcMethod: GetObject\n cause:\n name: FastServerError\n message: \"server error: user 'bob' is not authorized\"\n cause:\n name: UnauthorizedError\n message: \"user 'bob' is not authorized\"\n rpcUser: \"bob\"\n\nWhen the caller uses `VError.info()`, the information properties are collapsed\nso that it looks like this:\n\n message: \"request failed: server error: user 'bob' is not authorized\"\n rpcMsgid: <unique identifier for this request>\n rpcMethod: GetObject\n rpcUser: \"bob\"\n\nTaking this apart:\n\n* The error's message is a complete description of the problem. The caller can\n report this directly to its caller, which can potentially make its way back to\n an end user (if appropriate). It can also be logged.\n* The caller can tell that the request failed on the server, rather than as a\n result of a client problem (e.g., failure to serialize the request), a\n transport problem (e.g., failure to connect to the server), or something else\n (e.g., a timeout). They do this using `findCauseByName('FastServerError')`\n rather than checking the `name` field directly.\n* If the caller logs this error, the logs can be analyzed to aggregate\n errors by cause, by RPC method name, by user, or whatever. Or the\n error can be correlated with other events for the same rpcMsgid.\n* It wasn't very hard for any part of the code to contribute to this Error.\n Each part of the stack has just a few lines to provide exactly what it knows,\n with very little boilerplate.\n\nIt's not expected that you'd use these complex forms all the time. Despite\nsupporting the complex case above, you can still just do:\n\n new VError(\"my service isn't working\");\n\nfor the simple cases.\n\n# Reference: VError, WError, SError\n\nVError, WError, and SError are convenient drop-in replacements for `Error` that\nsupport printf-style arguments, first-class causes, informational properties,\nand other useful features.\n\n## Constructors\n\nThe VError constructor has several forms:\n\n```javascript\n/*\n * This is the most general form. You can specify any supported options\n * (including \"cause\" and \"info\") this way.\n */\nnew VError(options, sprintf_args...)\n\n/*\n * This is a useful shorthand when the only option you need is \"cause\".\n */\nnew VError(cause, sprintf_args...)\n\n/*\n * This is a useful shorthand when you don't need any options at all.\n */\nnew VError(sprintf_args...)\n```\n\nAll of these forms construct a new VError that behaves just like the built-in\nJavaScript `Error` class, with some additional methods described below.\n\nIn the first form, `options` is a plain object with any of the following\noptional properties:\n\nOption name | Type | Meaning\n---------------- | ---------------- | -------\n`name` | string | Describes what kind of error this is. This is intended for programmatic use to distinguish between different kinds of errors. Note that in modern versions of Node.js, this name is ignored in the `stack` property value, but callers can still use the `name` property to get at it.\n`cause` | any Error object | Indicates that the new error was caused by `cause`. See `cause()` below. If unspecified, the cause will be `null`.\n`strict` | boolean | If true, then `null` and `undefined` values in `sprintf_args` are passed through to `sprintf()`. Otherwise, these are replaced with the strings `'null'`, and '`undefined`', respectively.\n`constructorOpt` | function | If specified, then the stack trace for this error ends at function `constructorOpt`. Functions called by `constructorOpt` will not show up in the stack. This is useful when this class is subclassed.\n`info` | object | Specifies arbitrary informational properties that are available through the `VError.info(err)` static class method. See that method for details.\n\nThe second form is equivalent to using the first form with the specified `cause`\nas the error's cause. This form is distinguished from the first form because\nthe first argument is an Error.\n\nThe third form is equivalent to using the first form with all default option\nvalues. This form is distinguished from the other forms because the first\nargument is not an object or an Error.\n\nThe `WError` constructor is used exactly the same way as the `VError`\nconstructor. The `SError` constructor is also used the same way as the\n`VError` constructor except that in all cases, the `strict` property is\noverriden to `true.\n\n## Public properties\n\n`VError`, `WError`, and `SError` all provide the same public properties as\nJavaScript's built-in Error objects.\n\nProperty name | Type | Meaning\n------------- | ------ | -------\n`name` | string | Programmatically-usable name of the error.\n`message` | string | Human-readable summary of the failure. Programmatically-accessible details are provided through `VError.info(err)` class method.\n`stack` | string | Human-readable stack trace where the Error was constructed.\n\nFor all of these classes, the printf-style arguments passed to the constructor\nare processed with `sprintf()` to form a message. For `WError`, this becomes\nthe complete `message` property. For `SError` and `VError`, this message is\nprepended to the message of the cause, if any (with a suitable separator), and\nthe result becomes the `message` property.\n\nThe `stack` property is managed entirely by the underlying JavaScript\nimplementation. It's generally implemented using a getter function because\nconstructing the human-readable stack trace is somewhat expensive.\n\n## Class methods\n\nThe following methods are defined on the `VError` class and as exported\nfunctions on the `verror` module. They're defined this way rather than using\nmethods on VError instances so that they can be used on Errors not created with\n`VError`.\n\n### `VError.cause(err)`\n\nThe `cause()` function returns the next Error in the cause chain for `err`, or\n`null` if there is no next error. See the `cause` argument to the constructor.\nErrors can have arbitrarily long cause chains. You can walk the `cause` chain\nby invoking `VError.cause(err)` on each subsequent return value. If `err` is\nnot a `VError`, the cause is `null`.\n\n### `VError.info(err)`\n\nReturns an object with all of the extra error information that's been associated\nwith this Error and all of its causes. These are the properties passed in using\nthe `info` option to the constructor. Properties not specified in the\nconstructor for this Error are implicitly inherited from this error's cause.\n\nThese properties are intended to provide programmatically-accessible metadata\nabout the error. For an error that indicates a failure to resolve a DNS name,\ninformational properties might include the DNS name to be resolved, or even the\nlist of resolvers used to resolve it. The values of these properties should\ngenerally be plain objects (i.e., consisting only of null, undefined, numbers,\nbooleans, strings, and objects and arrays containing only other plain objects).\n\n### `VError.fullStack(err)`\n\nReturns a string containing the full stack trace, with all nested errors recursively\nreported as `'caused by:' + err.stack`.\n\n### `VError.findCauseByName(err, name)`\n\nThe `findCauseByName()` function traverses the cause chain for `err`, looking\nfor an error whose `name` property matches the passed in `name` value. If no\nmatch is found, `null` is returned.\n\nIf all you want is to know _whether_ there's a cause (and you don't care what it\nis), you can use `VError.hasCauseWithName(err, name)`.\n\nIf a vanilla error or a non-VError error is passed in, then there is no cause\nchain to traverse. In this scenario, the function will check the `name`\nproperty of only `err`.\n\n### `VError.hasCauseWithName(err, name)`\n\nReturns true if and only if `VError.findCauseByName(err, name)` would return\na non-null value. This essentially determines whether `err` has any cause in\nits cause chain that has name `name`.\n\n### `VError.errorFromList(errors)`\n\nGiven an array of Error objects (possibly empty), return a single error\nrepresenting the whole collection of errors. If the list has:\n\n* 0 elements, returns `null`\n* 1 element, returns the sole error\n* more than 1 element, returns a MultiError referencing the whole list\n\nThis is useful for cases where an operation may produce any number of errors,\nand you ultimately want to implement the usual `callback(err)` pattern. You can\naccumulate the errors in an array and then invoke\n`callback(VError.errorFromList(errors))` when the operation is complete.\n\n### `VError.errorForEach(err, func)`\n\nConvenience function for iterating an error that may itself be a MultiError.\n\nIn all cases, `err` must be an Error. If `err` is a MultiError, then `func` is\ninvoked as `func(errorN)` for each of the underlying errors of the MultiError.\nIf `err` is any other kind of error, `func` is invoked once as `func(err)`. In\nall cases, `func` is invoked synchronously.\n\nThis is useful for cases where an operation may produce any number of warnings\nthat may be encapsulated with a MultiError -- but may not be.\n\nThis function does not iterate an error's cause chain.\n\n## Examples\n\nThe \"Demo\" section above covers several basic cases. Here's a more advanced\ncase:\n\n```javascript\nvar err1 = new VError('something bad happened');\n/* ... */\nvar err2 = new VError({\n 'name': 'ConnectionError',\n 'cause': err1,\n 'info': {\n 'errno': 'ECONNREFUSED',\n 'remote_ip': '127.0.0.1',\n 'port': 215\n }\n}, 'failed to connect to \"%s:%d\"', '127.0.0.1', 215);\n\nconsole.log(err2.message);\nconsole.log(err2.name);\nconsole.log(VError.info(err2));\nconsole.log(err2.stack);\n```\n\nThis outputs:\n\n failed to connect to \"127.0.0.1:215\": something bad happened\n ConnectionError\n { errno: 'ECONNREFUSED', remote_ip: '127.0.0.1', port: 215 }\n ConnectionError: failed to connect to \"127.0.0.1:215\": something bad happened\n at Object.<anonymous> (/home/dap/node-verror/examples/info.js:5:12)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n at node.js:935:3\n\nInformation properties are inherited up the cause chain, with values at the top\nof the chain overriding same-named values lower in the chain. To continue that\nexample:\n\n```javascript\nvar err3 = new VError({\n 'name': 'RequestError',\n 'cause': err2,\n 'info': {\n 'errno': 'EBADREQUEST'\n }\n}, 'request failed');\n\nconsole.log(err3.message);\nconsole.log(err3.name);\nconsole.log(VError.info(err3));\nconsole.log(err3.stack);\n```\n\nThis outputs:\n\n request failed: failed to connect to \"127.0.0.1:215\": something bad happened\n RequestError\n { errno: 'EBADREQUEST', remote_ip: '127.0.0.1', port: 215 }\n RequestError: request failed: failed to connect to \"127.0.0.1:215\": something bad happened\n at Object.<anonymous> (/home/dap/node-verror/examples/info.js:20:12)\n at Module._compile (module.js:456:26)\n at Object.Module._extensions..js (module.js:474:10)\n at Module.load (module.js:356:32)\n at Function.Module._load (module.js:312:12)\n at Function.Module.runMain (module.js:497:10)\n at startup (node.js:119:16)\n at node.js:935:3\n\nYou can also print the complete stack trace of combined `Error`s by using\n`VError.fullStack(err).`\n\n```javascript\nvar err1 = new VError('something bad happened');\n/* ... */\nvar err2 = new VError(err1, 'something really bad happened here');\n\nconsole.log(VError.fullStack(err2));\n```\n\nThis outputs:\n\n VError: something really bad happened here: something bad happened\n at Object.<anonymous> (/home/dap/node-verror/examples/fullStack.js:5:12)\n at Module._compile (module.js:409:26)\n at Object.Module._extensions..js (module.js:416:10)\n at Module.load (module.js:343:32)\n at Function.Module._load (module.js:300:12)\n at Function.Module.runMain (module.js:441:10)\n at startup (node.js:139:18)\n at node.js:968:3\n caused by: VError: something bad happened\n at Object.<anonymous> (/home/dap/node-verror/examples/fullStack.js:3:12)\n at Module._compile (module.js:409:26)\n at Object.Module._extensions..js (module.js:416:10)\n at Module.load (module.js:343:32)\n at Function.Module._load (module.js:300:12)\n at Function.Module.runMain (module.js:441:10)\n at startup (node.js:139:18)\n at node.js:968:3\n\n`VError.fullStack` is also safe to use on regular `Error`s, so feel free to use\nit whenever you need to extract the stack trace from an `Error`, regardless if\nit's a `VError` or not.\n\n# Reference: MultiError\n\nMultiError is an Error class that represents a group of Errors. This is used\nwhen you logically need to provide a single Error, but you want to preserve\ninformation about multiple underying Errors. A common case is when you execute\nseveral operations in parallel and some of them fail.\n\nMultiErrors are constructed as:\n\n```javascript\nnew MultiError(error_list)\n```\n\n`error_list` is an array of at least one `Error` object.\n\nThe cause of the MultiError is the first error provided. None of the other\n`VError` options are supported. The `message` for a MultiError consists the\n`message` from the first error, prepended with a message indicating that there\nwere other errors.\n\nFor example:\n\n```javascript\nerr = new MultiError([\n new Error('failed to resolve DNS name \"abc.example.com\"'),\n new Error('failed to resolve DNS name \"def.example.com\"'),\n]);\n\nconsole.error(err.message);\n```\n\noutputs:\n\n first of 2 errors: failed to resolve DNS name \"abc.example.com\"\n\nSee the convenience function `VError.errorFromList`, which is sometimes simpler\nto use than this constructor.\n\n## Public methods\n\n### `errors()`\n\nReturns an array of the errors used to construct this MultiError.\n\n# Contributing\n\nSee separate [contribution guidelines](CONTRIBUTING.md).\n[]()\n\n# ICSS — Replace Symbols\n\nGoverns the way tokens are searched & replaced during the linking stage of ICSS loading.\n\nThis is broken into its own module in case the behaviour needs to be replicated in other PostCSS plugins (i.e. [CSS Modules Constants](https://github.com/css-modules/postcss-modules-constants))\n\n## API\n\n```js\nimport replaceSymbols from \"icss-replace-symbols\"\nreplaceSymbols(css, translations)\n```\n\nWhere:\n\n- `css` is the PostCSS tree you're working with\n- `translations` is an JS object of `symbol: \"replacement\"` pairs, where all occurrences of `symbol` are replaced with `replacement`.\n\n## Behaviour\n\nA symbol is a string of alphanumeric, `-` or `_` characters. A replacement can be any string. They are replaced in the following places:\n\n- In the value of a declaration, i.e. `color: my_symbol;` or `box-shadow: 0 0 blur spread shadow-color`\n- In a media expression i.e. `@media small {}` or `@media screen and not-large {}`\n\n## License\n\nISC\n\n---\nGlen Maddern, 2015.\n# thunky\n\nDelay the evaluation of a paramless async function and cache the result (see [thunk](http://en.wikipedia.org/wiki/Thunk_%28functional_programming%29)).\n\n```\nnpm install thunky\n```\n\n[](http://travis-ci.org/mafintosh/thunky)\n\n## Example\n\nLet's make a simple function that returns a random number 1 second after it is called for the first time\n\n``` js\nvar thunky = require('thunky')\n\nvar test = thunky(function (callback) { // the inner function should only accept a callback\n console.log('waiting 1s and returning random number')\n setTimeout(function () {\n callback(Math.random())\n }, 1000)\n})\n\ntest(function (num) { // inner function is called the first time we call test\n console.log(num) // prints random number\n})\n\ntest(function (num) { // subsequent calls waits for the first call to finish and return the same value\n console.log(num) // prints the same random number as above\n})\n```\n\n## Lazy evaluation\n\nThunky makes it easy to implement a lazy evaluation pattern.\n\n``` js\nvar getDb = thunky(function (callback) {\n db.open(myConnectionString, callback)\n})\n\nvar queryDb = function (query, callback) {\n getDb(function (err, db) {\n if (err) return callback(err)\n db.query(query, callback)\n })\n}\n\nqueryDb('some query', function (err, result) { ... } )\n\nqueryDb('some other query', function (err, result) { ... } )\n```\n\nThe first time `getDb` is called it will try do open a connection to the database.\nAny subsequent calls will just wait for the first call to complete and then call your callback.\n\nA nice property of this pattern is that it *easily* allows us to pass any error caused by `getDb` to the `queryDb` callback.\n\n## Error → No caching\n\nIf the thunk callback is called with an `Error` object as the first argument it will not cache the result\n\n``` js\nvar fails = thunky(function (callback) {\n console.log('returning an error')\n callback(new Error('bad stuff'))\n})\n\nfails(function (err) { // inner function is called\n console.log(err)\n});\n\nfails(function (err) { // inner function is called again as it returned an error before\n console.log(err)\n})\n```\n\n## License\n\nMIT\n# stream-http [](https://travis-ci.org/jhiesey/stream-http)\n\n[](https://saucelabs.com/u/stream-http)\n\nThis module is an implementation of Node's native `http` module for the browser.\nIt tries to match Node's API and behavior as closely as possible, but some features\naren't available, since browsers don't give nearly as much control over requests.\n\nThis is heavily inspired by, and intended to replace, [http-browserify](https://github.com/substack/http-browserify).\n\n## What does it do?\n\nIn accordance with its name, `stream-http` tries to provide data to its caller before\nthe request has completed whenever possible.\n\nBackpressure, allowing the browser to only pull data from the server as fast as it is\nconsumed, is supported in:\n* Chrome >= 58 (using `fetch` and `WritableStream`)\n\nThe following browsers support true streaming, where only a small amount of the request\nhas to be held in memory at once:\n* Chrome >= 43 (using the `fetch` API)\n* Firefox >= 9 (using `moz-chunked-arraybuffer` responseType with xhr)\n\nThe following browsers support pseudo-streaming, where the data is available before the\nrequest finishes, but the entire response must be held in memory:\n* Chrome\n* Safari >= 5, and maybe older\n* IE >= 10\n* Most other Webkit-based browsers, including the default Android browser\n\nAll browsers newer than IE8 support binary responses. All of the above browsers that\nsupport true streaming or pseudo-streaming support that for binary data as well\nexcept for IE10. Old (presto-based) Opera also does not support binary streaming either.\n\n### IE8 note:\nAs of version 2.0.0, IE8 support requires the user to supply polyfills for\n`Object.keys`, `Array.prototype.forEach`, and `Array.prototype.indexOf`. Example\nimplementations are provided in [ie8-polyfill.js](ie8-polyfill.js); alternately,\nyou may want to consider using [es5-shim](https://github.com/es-shims/es5-shim).\nAll browsers with full ES5 support shouldn't require any polyfills.\n\n## How do you use it?\n\nThe intent is to have the same API as the client part of the\n[Node HTTP module](https://nodejs.org/api/http.html). The interfaces are the same wherever\npractical, although limitations in browsers make an exact clone of the Node API impossible.\n\nThis module implements `http.request`, `http.get`, and most of `http.ClientRequest`\nand `http.IncomingMessage` in addition to `http.METHODS` and `http.STATUS_CODES`. See the\nNode docs for how these work.\n\n### Extra features compared to Node\n\n* The `message.url` property provides access to the final URL after all redirects. This\nis useful since the browser follows all redirects silently, unlike Node. It is available\nin Chrome 37 and newer, Firefox 32 and newer, and Safari 9 and newer.\n\n* The `options.withCredentials` boolean flag, used to indicate if the browser should send\ncookies or authentication information with a CORS request. Default false.\n\nThis module has to make some tradeoffs to support binary data and/or streaming. Generally,\nthe module can make a fairly good decision about which underlying browser features to use,\nbut sometimes it helps to get a little input from the developer.\n\n* The `options.mode` field passed into `http.request` or `http.get` can take on one of the\nfollowing values:\n * 'default' (or any falsy value, including `undefined`): Try to provide partial data before\nthe request completes, but not at the cost of correctness for binary data or correctness of\nthe 'content-type' response header. This mode will also avoid slower code paths whenever\npossible, which is particularly useful when making large requests in a browser like Safari\nthat has a weaker JavaScript engine.\n * 'allow-wrong-content-type': Provides partial data in more cases than 'default', but\nat the expense of causing the 'content-type' response header to be incorrectly reported\n(as 'text/plain; charset=x-user-defined') in some browsers, notably Safari and Chrome 42\nand older. Preserves binary data whenever possible. In some cases the implementation may\nalso be a bit slow. This was the default in versions of this module before 1.5.\n * 'prefer-stream': Provide data before the request completes even if binary data (anything\nthat isn't a single-byte ASCII or UTF8 character) will be corrupted. Of course, this option\nis only safe for text data. May also cause the 'content-type' response header to be\nincorrectly reported (as 'text/plain; charset=x-user-defined').\n * 'disable-fetch': Force the use of plain XHR regardless of the browser declaring a fetch\ncapability. Preserves the correctness of binary data and the 'content-type' response header.\n * 'prefer-fast': Deprecated; now a synonym for 'default', which has the same performance\ncharacteristics as this mode did in versions before 1.5.\n\n* `options.requestTimeout` allows setting a timeout in millisecionds for XHR and fetch (if\nsupported by the browser). This is a limit on how long the entire process takes from\nbeginning to end. Note that this is not the same as the node `setTimeout` functions,\nwhich apply to pauses in data transfer over the underlying socket, or the node `timeout`\noption, which applies to opening the connection.\n\n### Features missing compared to Node\n\n* `http.Agent` is only a stub\n* The 'socket', 'connect', 'upgrade', and 'continue' events on `http.ClientRequest`.\n* Any operations, including `request.setTimeout`, that operate directly on the underlying\nsocket.\n* Any options that are disallowed for security reasons. This includes setting or getting\ncertain headers.\n* `message.httpVersion`\n* `message.rawHeaders` is modified by the browser, and may not quite match what is sent by\nthe server.\n* `message.trailers` and `message.rawTrailers` will remain empty.\n* Redirects are followed silently by the browser, so it isn't possible to access the 301/302\nredirect pages.\n* The `timeout` event/option and `setTimeout` functions, which operate on the underlying\nsocket, are not available. However, see `options.requestTimeout` above.\n\n## Example\n\n``` js\nhttp.get('/bundle.js', function (res) {\n\tvar div = document.getElementById('result');\n\tdiv.innerHTML += 'GET /beep<br>';\n\n\tres.on('data', function (buf) {\n\t\tdiv.innerHTML += buf;\n\t});\n\n\tres.on('end', function () {\n\t\tdiv.innerHTML += '<br>__END__';\n\t});\n})\n```\n\n## Running tests\n\nThere are two sets of tests: the tests that run in Node (found in `test/node`) and the tests\nthat run in the browser (found in `test/browser`). Normally the browser tests run on\n[Sauce Labs](http://saucelabs.com/).\n\nRunning `npm test` will run both sets of tests, but in order for the Sauce Labs tests to run\nyou will need to sign up for an account (free for open source projects) and put the\ncredentials in a [`.zuulrc` file](https://github.com/defunctzombie/zuul/wiki/zuulrc).\n\nTo run just the Node tests, run `npm run test-node`.\n\nTo run the browser tests locally, run `npm run test-browser-local` and point your browser to\n`http://localhost:8080/__zuul`\n\n## License\n\nMIT. Copyright (C) John Hiesey and other contributors.\n# shallow-clone [](https://www.npmjs.com/package/shallow-clone) [](https://npmjs.org/package/shallow-clone) [](https://npmjs.org/package/shallow-clone) [](https://travis-ci.org/jonschlinkert/shallow-clone)\n\n> Make a shallow clone of an object, array or primitive.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save shallow-clone\n```\n\n## Usage\n\n```js\nvar clone = require('shallow-clone');\n```\n\n## shallow clones arrays\n\nThe array itself is cloned, but not the elements of the array. So any objects in the array will still not be cloned (e.g. they will be the same object as in the orginal array).\n\n```js\nvar arr = [{ 'a': 0 }, { 'b': 1 }]\nvar foo = clone(arr);\n// foo => [{ 'a': 0 }, { 'b': 1 }]\n\n// array is cloned\nassert.equal(actual === expected, false);\n\n// array elements are not\nassert.deepEqual(actual[0], expected[0]); // true\n```\n\n## returns primitives as-is\n\n```js\nclone(0)\n//=> 0\n\nclone('foo')\n//=> 'foo'\n```\n\n## shallow clone a regex\n\n```js\nclone(/foo/g)\n//=> /foo/g\n```\n\n## shallow clone an object\n\n```js\nclone({a: 1, b: 2, c: 3 })\n//=> {a: 1, b: 2, c: 3 }\n```\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [clone-deep](https://www.npmjs.com/package/clone-deep): Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives. | [homepage](https://github.com/jonschlinkert/clone-deep \"Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://github.com/jonschlinkert/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object \"Mixin the own and inherited properties of other objects onto the first object. Pass an empty object as the first arg to shallow clone.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 2 | [doowb](https://github.com/doowb) |\n| 2 | [jonschlinkert](https://github.com/jonschlinkert) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 16, 2017._\n# postcss-selector-parser [](https://travis-ci.org/postcss/postcss-selector-parser)\n\n> Selector parser with built in methods for working with selector strings.\n\n## Install\n\nWith [npm](https://npmjs.com/package/postcss-selector-parser) do:\n\n```\nnpm install postcss-selector-parser\n```\n\n## Quick Start\n\n```js\nconst parser = require('postcss-selector-parser');\nconst transform = selectors => {\n selectors.walk(selector => {\n // do something with the selector\n console.log(String(selector))\n });\n};\n\nconst transformed = parser(transform).processSync('h1, h2, h3');\n```\n\nTo normalize selector whitespace:\n\n```js\nconst parser = require('postcss-selector-parser');\nconst normalized = parser().processSync('h1, h2, h3', {lossless: false});\n// -> h1,h2,h3\n```\n\nAsync support is provided through `parser.process` and will resolve a Promise\nwith the resulting selector string.\n\n## API\n\nPlease see [API.md](API.md).\n\n## Credits\n\n* Huge thanks to Andrey Sitnik (@ai) for work on PostCSS which helped\n accelerate this module's development.\n\n## License\n\nMIT\n# caniuse-lite\n\n> A smaller version of caniuse-db, with only the essentials!\n\n## Why?\n\nThe full data behind [Can I use][1] is incredibly useful for any front end\ndeveloper, and on the website all of the details from the database are displayed\nto the user. However in automated tools, [many of these fields go unused][2];\nit's not a problem for server side consumption but client side, the less\nJavaScript that we send to the end user the better.\n\ncaniuse-lite then, is a smaller dataset that keeps essential parts of the data\nin a compact format. It does this in multiple ways, such as converting `null`\narray entries into empty strings, representing support data as an integer rather\nthan a string, and using base62 references instead of longer human-readable\nkeys.\n\nThis packed data is then reassembled (via functions exposed by this module) into\na larger format which is mostly compatible with caniuse-db, and so it can be\nused as an almost drop-in replacement for caniuse-db for contexts where size on\ndisk is important; for example, usage in web browsers. The API differences are\nvery small and are detailed in the section below.\n\n## API\n\n```js\nimport * as lite from 'caniuse-lite';\n```\n\n### `lite.agents`\n\ncaniuse-db provides a full `data.json` file which contains all of the features\ndata. Instead of this large file, caniuse-lite provides this data subset\ninstead, which has the `browser`, `prefix`, `prefix_exceptions`, `usage_global`\nand `versions` keys from the original.\n\nIn addition, the subset contains the `release_date` key with release dates (as timestamps) for each version:\n```json\n{\n \"release_date\": {\n \"6\": 998870400,\n \"7\": 1161129600,\n \"8\": 1237420800,\n \"9\": 1300060800,\n \"10\": 1346716800,\n \"11\": 1381968000,\n \"5.5\": 962323200\n }\n}\n```\n\n### `lite.feature(js)`\n\nThe `feature` method takes a file from `data/features` and converts it into\nsomething that more closely represents the `caniuse-db` format. Note that only\nthe `title`, `stats` and `status` keys are kept from the original data.\n\n### `lite.features`\n\nThe `features` index is provided as a way to query all of the features that\nare listed in the `caniuse-db` dataset. Note that you will need to use the\n`feature` method on values from this index to get a human-readable format.\n\n### `lite.region(js)`\n\nThe `region` method takes a file from `data/regions` and converts it into\nsomething that more closely represents the `caniuse-db` format. Note that *only*\nthe usage data is exposed here (the `data` key in the original files).\n\n## Contributors\n\nThanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds/all-contributors#emoji-key)):\n\n<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->\n<!-- prettier-ignore -->\n| [<img src=\"https://avatars.githubusercontent.com/u/1282980?v=3\" width=\"100px;\"/><br /><sub><b>Ben Briggs</b></sub>](http://beneb.info)<br />[💻](https://github.com/ben-eb/caniuse-lite/commits?author=ben-eb \"Code\") [📖](https://github.com/ben-eb/caniuse-lite/commits?author=ben-eb \"Documentation\") [👀](#review-ben-eb \"Reviewed Pull Requests\") [⚠️](https://github.com/ben-eb/caniuse-lite/commits?author=ben-eb \"Tests\") | [<img src=\"https://avatars.githubusercontent.com/u/1737375?v=3\" width=\"100px;\"/><br /><sub><b>Andy Jansson</b></sub>](https://github.com/andyjansson)<br />[💻](https://github.com/ben-eb/caniuse-lite/commits?author=andyjansson \"Code\") | [<img src=\"https://avatars1.githubusercontent.com/u/19343?v=4\" width=\"100px;\"/><br /><sub><b>Andrey Sitnik</b></sub>](http://twitter.com/sitnikcode)<br />[💻](https://github.com/ben-eb/caniuse-lite/commits?author=ai \"Code\") | [<img src=\"https://avatars2.githubusercontent.com/u/947326?v=4\" width=\"100px;\"/><br /><sub><b>Igor Deryabin</b></sub>](http://rodweb.ru)<br />[💻](https://github.com/ben-eb/caniuse-lite/commits?author=rodweb \"Code\") |\n| :---: | :---: | :---: | :---: |\n<!-- ALL-CONTRIBUTORS-LIST:END -->\n\nThis project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind welcome!\n\n<img src=\"https://opensource.nyc3.digitaloceanspaces.com/attribution/assets/SVG/DO_Logo_icon_blue.svg\" alt=\"Digital Ocean logo\" width=\"40\" align=\"left\">\n\nBig thanks to [DigitalOcean](https://www.digitalocean.com/?utm_source=opensource&utm_campaign=caniuse-lite) for supporting this project by providing their great infrastructure for us.\n\n## License\n\nThe data in this repo is available for use under a CC BY 4.0 license\n(http://creativecommons.org/licenses/by/4.0/). For attribution just mention\nsomewhere that the source is caniuse.com. If you have any questions about using\nthe data for your project please contact me here: http://a.deveria.com/contact\n\n[1]: http://caniuse.com/\n[2]: https://github.com/Fyrd/caniuse/issues/1827\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Install\n\n```bash\nnpm install --save semver\n````\n\n## Usage\n\nAs a node module:\n\n```js\nconst semver = require('semver')\n\nsemver.valid('1.2.3') // '1.2.3'\nsemver.valid('a.b.c') // null\nsemver.clean(' =v1.2.3 ') // '1.2.3'\nsemver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\nsemver.gt('1.2.3', '9.8.7') // false\nsemver.lt('1.2.3', '9.8.7') // true\nsemver.minVersion('>=1.0.0') // '1.0.0'\nsemver.valid(semver.coerce('v2')) // '2.0.0'\nsemver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'\n```\n\nAs a command-line utility:\n\n```\n$ semver -h\n\nA JavaScript implementation of the https://semver.org/ specification\nCopyright Isaac Z. Schlueter\n\nUsage: semver [options] <version> [<version> [...]]\nPrints valid versions sorted by SemVer precedence\n\nOptions:\n-r --range <range>\n Print versions that match the specified range.\n\n-i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n--preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n-l --loose\n Interpret versions and ranges loosely\n\n-p --include-prerelease\n Always include prerelease versions in range matching\n\n-c --coerce\n Coerce a string into SemVer if possible\n (does not imply --loose)\n\nProgram exits successfully if any valid version satisfies\nall supplied ranges, and prints all satisfying versions.\n\nIf no satisfying versions are found, then exits failure.\n\nVersions are printed in ascending order, so supplying\nmultiple versions to the utility will just sort them.\n```\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<https://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\nNote that this behavior can be suppressed (treating all prerelease\nversions as if they were normal versions, for the purpose of range\nmatching) by setting the `includePrerelease` flag on the options\nobject to any\n[functions](https://github.com/npm/node-semver#functions) that do\nrange matching.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\nsemver.inc('1.2.3', 'prerelease', 'beta')\n// '1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```bash\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```bash\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any version satisfies)\n* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero digit in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0`\n* `^0.2.3` := `>=0.2.3 <0.3.0`\n* `^0.0.3` := `>=0.0.3 <0.0.4`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0`\n* `^0.0.x` := `>=0.0.0 <0.1.0`\n* `^0.0` := `>=0.0.0 <0.1.0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0`\n* `^0.x` := `>=0.0.0 <1.0.0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `options` object argument. All\noptions in this object are `false` by default. The options supported\nare:\n\n- `loose` Be more forgiving about not-quite-valid semver strings.\n (Any resulting output will always be 100% strict compliant, of\n course.) For backwards compatibility reasons, if the `options`\n argument is a boolean value instead of an object, it is interpreted\n to be the `loose` param.\n- `includePrerelease` Set to suppress the [default\n behavior](https://github.com/npm/node-semver#prerelease-tags) of\n excluding prerelease tagged versions from ranges unless they are\n explicitly opted into.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n* `intersects(r1, r2, loose)`: Return true if the two supplied ranges\n or comparators intersect.\n* `parse(v)`: Attempt to parse a string as a semantic version, returning either\n a `SemVer` object or `null`.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Comparators\n\n* `intersects(comparator)`: Return true if the comparators intersect\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minVersion(range)`: Return the lowest version that can possibly match\n the given range.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n* `intersects(range)`: Return true if any of the ranges comparators intersect\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n\n### Coercion\n\n* `coerce(version)`: Coerces a string to semver if possible\n\nThis aims to provide a very forgiving translation of a non-semver\nstring to semver. It looks for the first digit in a string, and\nconsumes all remaining characters which satisfy at least a partial semver\n(e.g., `1`, `1.2`, `1.2.3`) up to the max permitted length (256 characters).\nLonger versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).\nAll surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes `3.4.0`).\nOnly text which lacks digits will fail coercion (`version one` is not valid).\nThe maximum length for any semver component considered for coercion is 16 characters;\nlonger components will be ignored (`10000000000000000.4.7.4` becomes `4.7.4`).\nThe maximum value for any semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`;\nhigher value components are invalid (`9999999999999999.4.7.4` is likely invalid).\n# union-value [](https://www.npmjs.com/package/union-value) [](https://npmjs.org/package/union-value) [](https://npmjs.org/package/union-value) [](https://travis-ci.org/jonschlinkert/union-value)\n\n> Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save union-value\n```\n\n## Usage\n\n```js\nvar union = require('union-value');\n\nvar obj = {};\n\nunion(obj, 'a.b.c', ['one', 'two']);\nunion(obj, 'a.b.c', ['three']);\n\nconsole.log(obj);\n//=> {a: {b: {c: [ 'one', 'two', 'three' ] }}}\n```\n\n## About\n\n### Related projects\n\n* [assign-value](https://www.npmjs.com/package/assign-value): Assign a value or extend a deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/assign-value) | [homepage](https://github.com/jonschlinkert/assign-value \"Assign a value or extend a deeply nested property of an object using object path notation.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value \"Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value \"Delete nested properties from an object using dot notation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 25, 2017._\n# require-main-filename\n\n[](https://travis-ci.org/yargs/require-main-filename)\n[](https://coveralls.io/r/yargs/require-main-filename?branch=master)\n[](https://www.npmjs.com/package/require-main-filename)\n\n`require.main.filename` is great for figuring out the entry\npoint for the current application. This can be combined with a module like\n[pkg-conf](https://www.npmjs.com/package/pkg-conf) to, _as if by magic_, load\ntop-level configuration.\n\nUnfortunately, `require.main.filename` sometimes fails when an application is\nexecuted with an alternative process manager, e.g., [iisnode](https://github.com/tjanczuk/iisnode).\n\n`require-main-filename` is a shim that addresses this problem.\n\n## Usage\n\n```js\nvar main = require('require-main-filename')()\n// use main as an alternative to require.main.filename.\n```\n\n## License\n\nISC\n# process\n\n```require('process');``` just like any other module.\n\nWorks in node.js and browsers via the browser.js shim provided with the module.\n\n## package manager notes\n\nIf you are writing a bundler to package modules for client side use, make sure you use the ```browser``` field hint in package.json.\n\nSee https://gist.github.com/4339901 for details.\n\nThe [browserify](https://github.com/substack/node-browserify) module will properly handle this field when bundling your files.\n# serve-static\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Linux Build][travis-image]][travis-url]\n[![Windows Build][appveyor-image]][appveyor-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install serve-static\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar serveStatic = require('serve-static')\n```\n\n### serveStatic(root, options)\n\nCreate a new middleware function to serve files from within a given root\ndirectory. The file to serve will be determined by combining `req.url`\nwith the provided root directory. When a file is not found, instead of\nsending a 404 response, this module will instead call `next()` to move on\nto the next middleware, allowing for stacking and fall-backs.\n\n#### Options\n\n##### acceptRanges\n\nEnable or disable accepting ranged requests, defaults to true.\nDisabling this will not send `Accept-Ranges` and ignore the contents\nof the `Range` request header.\n\n##### cacheControl\n\nEnable or disable setting `Cache-Control` response header, defaults to\ntrue. Disabling this will ignore the `immutable` and `maxAge` options.\n\n##### dotfiles\n\n Set how \"dotfiles\" are treated when encountered. A dotfile is a file\nor directory that begins with a dot (\".\"). Note this check is done on\nthe path itself without checking if the path actually exists on the\ndisk. If `root` is specified, only the dotfiles above the root are\nchecked (i.e. the root itself can be within a dotfile when set\nto \"deny\").\n\n - `'allow'` No special treatment for dotfiles.\n - `'deny'` Deny a request for a dotfile and 403/`next()`.\n - `'ignore'` Pretend like the dotfile does not exist and 404/`next()`.\n\nThe default value is similar to `'ignore'`, with the exception that this\ndefault will not ignore the files within a directory that begins with a dot.\n\n##### etag\n\nEnable or disable etag generation, defaults to true.\n\n##### extensions\n\nSet file extension fallbacks. When set, if a file is not found, the given\nextensions will be added to the file name and search for. The first that\nexists will be served. Example: `['html', 'htm']`.\n\nThe default value is `false`.\n\n##### fallthrough\n\nSet the middleware to have client errors fall-through as just unhandled\nrequests, otherwise forward a client error. The difference is that client\nerrors like a bad request or a request to a non-existent file will cause\nthis middleware to simply `next()` to your next middleware when this value\nis `true`. When this value is `false`, these errors (even 404s), will invoke\n`next(err)`.\n\nTypically `true` is desired such that multiple physical directories can be\nmapped to the same web address or for routes to fill in non-existent files.\n\nThe value `false` can be used if this middleware is mounted at a path that\nis designed to be strictly a single file system directory, which allows for\nshort-circuiting 404s for less overhead. This middleware will also reply to\nall methods.\n\nThe default value is `true`.\n\n##### immutable\n\nEnable or disable the `immutable` directive in the `Cache-Control` response\nheader, defaults to `false`. If set to `true`, the `maxAge` option should\nalso be specified to enable caching. The `immutable` directive will prevent\nsupported clients from making conditional requests during the life of the\n`maxAge` option to check if the file has changed.\n\n##### index\n\nBy default this module will send \"index.html\" files in response to a request\non a directory. To disable this set `false` or to supply a new index pass a\nstring or an array in preferred order.\n\n##### lastModified\n\nEnable or disable `Last-Modified` header, defaults to true. Uses the file\nsystem's last modified value.\n\n##### maxAge\n\nProvide a max-age in milliseconds for http caching, defaults to 0. This\ncan also be a string accepted by the [ms](https://www.npmjs.org/package/ms#readme)\nmodule.\n\n##### redirect\n\nRedirect to trailing \"/\" when the pathname is a dir. Defaults to `true`.\n\n##### setHeaders\n\nFunction to set custom headers on response. Alterations to the headers need to\noccur synchronously. The function is called as `fn(res, path, stat)`, where\nthe arguments are:\n\n - `res` the response object\n - `path` the file path that is being sent\n - `stat` the stat object of the file that is being sent\n\n## Examples\n\n### Serve files with vanilla node.js http server\n\n```js\nvar finalhandler = require('finalhandler')\nvar http = require('http')\nvar serveStatic = require('serve-static')\n\n// Serve up public/ftp folder\nvar serve = serveStatic('public/ftp', {'index': ['index.html', 'index.htm']})\n\n// Create server\nvar server = http.createServer(function onRequest (req, res) {\n serve(req, res, finalhandler(req, res))\n})\n\n// Listen\nserver.listen(3000)\n```\n\n### Serve all files as downloads\n\n```js\nvar contentDisposition = require('content-disposition')\nvar finalhandler = require('finalhandler')\nvar http = require('http')\nvar serveStatic = require('serve-static')\n\n// Serve up public/ftp folder\nvar serve = serveStatic('public/ftp', {\n 'index': false,\n 'setHeaders': setHeaders\n})\n\n// Set header to force download\nfunction setHeaders (res, path) {\n res.setHeader('Content-Disposition', contentDisposition(path))\n}\n\n// Create server\nvar server = http.createServer(function onRequest (req, res) {\n serve(req, res, finalhandler(req, res))\n})\n\n// Listen\nserver.listen(3000)\n```\n\n### Serving using express\n\n#### Simple\n\nThis is a simple example of using Express.\n\n```js\nvar express = require('express')\nvar serveStatic = require('serve-static')\n\nvar app = express()\n\napp.use(serveStatic('public/ftp', {'index': ['default.html', 'default.htm']}))\napp.listen(3000)\n```\n\n#### Multiple roots\n\nThis example shows a simple way to search through multiple directories.\nFiles are look for in `public-optimized/` first, then `public/` second as\na fallback.\n\n```js\nvar express = require('express')\nvar path = require('path')\nvar serveStatic = require('serve-static')\n\nvar app = express()\n\napp.use(serveStatic(path.join(__dirname, 'public-optimized')))\napp.use(serveStatic(path.join(__dirname, 'public')))\napp.listen(3000)\n```\n\n#### Different settings for paths\n\nThis example shows how to set a different max age depending on the served\nfile type. In this example, HTML files are not cached, while everything else\nis for 1 day.\n\n```js\nvar express = require('express')\nvar path = require('path')\nvar serveStatic = require('serve-static')\n\nvar app = express()\n\napp.use(serveStatic(path.join(__dirname, 'public'), {\n maxAge: '1d',\n setHeaders: setCustomCacheControl\n}))\n\napp.listen(3000)\n\nfunction setCustomCacheControl (res, path) {\n if (serveStatic.mime.lookup(path) === 'text/html') {\n // Custom Cache-Control for HTML files\n res.setHeader('Cache-Control', 'public, max-age=0')\n }\n}\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/serve-static.svg\n[npm-url]: https://npmjs.org/package/serve-static\n[travis-image]: https://img.shields.io/travis/expressjs/serve-static/master.svg?label=linux\n[travis-url]: https://travis-ci.org/expressjs/serve-static\n[appveyor-image]: https://img.shields.io/appveyor/ci/dougwilson/serve-static/master.svg?label=windows\n[appveyor-url]: https://ci.appveyor.com/project/dougwilson/serve-static\n[coveralls-image]: https://img.shields.io/coveralls/expressjs/serve-static/master.svg\n[coveralls-url]: https://coveralls.io/r/expressjs/serve-static\n[downloads-image]: https://img.shields.io/npm/dm/serve-static.svg\n[downloads-url]: https://npmjs.org/package/serve-static\n# is-number [](https://www.npmjs.com/package/is-number) [](https://npmjs.org/package/is-number) [](https://travis-ci.org/jonschlinkert/is-number)\n\n> Returns true if the value is a number. comprehensive tests.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-number\n```\n\n## Usage\n\nTo understand some of the rationale behind the decisions made in this library (and to learn about some oddities of number evaluation in JavaScript), [see this gist](https://gist.github.com/jonschlinkert/e30c70c713da325d0e81).\n\n```js\nvar isNumber = require('is-number');\n```\n\n### true\n\nSee the [tests](./test.js) for more examples.\n\n```js\nisNumber(5e3) //=> 'true'\nisNumber(0xff) //=> 'true'\nisNumber(-1.1) //=> 'true'\nisNumber(0) //=> 'true'\nisNumber(1) //=> 'true'\nisNumber(1.1) //=> 'true'\nisNumber(10) //=> 'true'\nisNumber(10.10) //=> 'true'\nisNumber(100) //=> 'true'\nisNumber('-1.1') //=> 'true'\nisNumber('0') //=> 'true'\nisNumber('012') //=> 'true'\nisNumber('0xff') //=> 'true'\nisNumber('1') //=> 'true'\nisNumber('1.1') //=> 'true'\nisNumber('10') //=> 'true'\nisNumber('10.10') //=> 'true'\nisNumber('100') //=> 'true'\nisNumber('5e3') //=> 'true'\nisNumber(parseInt('012')) //=> 'true'\nisNumber(parseFloat('012')) //=> 'true'\n```\n\n### False\n\nSee the [tests](./test.js) for more examples.\n\n```js\nisNumber('foo') //=> 'false'\nisNumber([1]) //=> 'false'\nisNumber([]) //=> 'false'\nisNumber(function () {}) //=> 'false'\nisNumber(Infinity) //=> 'false'\nisNumber(NaN) //=> 'false'\nisNumber(new Array('abc')) //=> 'false'\nisNumber(new Array(2)) //=> 'false'\nisNumber(new Buffer('abc')) //=> 'false'\nisNumber(null) //=> 'false'\nisNumber(undefined) //=> 'false'\nisNumber({abc: 'abc'}) //=> 'false'\n```\n\n## About\n\n### Related projects\n\n* [even](https://www.npmjs.com/package/even): Get the even numbered items from an array. | [homepage](https://github.com/jonschlinkert/even \"Get the even numbered items from an array.\")\n* [is-even](https://www.npmjs.com/package/is-even): Return true if the given number is even. | [homepage](https://github.com/jonschlinkert/is-even \"Return true if the given number is even.\")\n* [is-odd](https://www.npmjs.com/package/is-odd): Returns true if the given number is odd. | [homepage](https://github.com/jonschlinkert/is-odd \"Returns true if the given number is odd.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n* [odd](https://www.npmjs.com/package/odd): Get the odd numbered items from an array. | [homepage](https://github.com/jonschlinkert/odd \"Get the odd numbered items from an array.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/is-number/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.30, on September 10, 2016._\nSerialize JavaScript\n====================\n\nSerialize JavaScript to a _superset_ of JSON that includes regular expressions, dates and functions.\n\n[![npm Version][npm-badge]][npm]\n[![Dependency Status][david-badge]][david]\n[![Build Status][travis-badge]][travis]\n\n## Overview\n\nThe code in this package began its life as an internal module to [express-state][]. To expand its usefulness, it now lives as `serialize-javascript` — an independent package on npm.\n\nYou're probably wondering: **What about `JSON.stringify()`!?** We've found that sometimes we need to serialize JavaScript **functions**, **regexps** or **dates**. A great example is a web app that uses client-side URL routing where the route definitions are regexps that need to be shared from the server to the client. But this module is also great for communicating between node processes.\n\nThe string returned from this package's single export function is literal JavaScript which can be saved to a `.js` file, or be embedded into an HTML document by making the content of a `<script>` element.\n\n> **HTML characters and JavaScript line terminators are escaped automatically.**\n\n## Installation\n\nInstall using npm:\n\n```shell\n$ npm install serialize-javascript\n```\n\n## Usage\n\n```js\nvar serialize = require('serialize-javascript');\n\nserialize({\n str : 'string',\n num : 0,\n obj : {foo: 'foo'},\n arr : [1, 2, 3],\n bool : true,\n nil : null,\n undef: undefined,\n date: new Date(\"Thu, 28 Apr 2016 22:02:17 GMT\"),\n\n fn: function echo(arg) { return arg; },\n re: /([^\\s]+)/g\n});\n```\n\nThe above will produce the following string output:\n\n```js\n'{\"str\":\"string\",\"num\":0,\"obj\":{\"foo\":\"foo\"},\"arr\":[1,2,3],\"bool\":true,\"nil\":null,date:new Date(\"2016-04-28T22:02:17.156Z\"),\"fn\":function echo(arg) { return arg; },\"re\":/([^\\\\s]+)/g}'\n```\n\nNote: to produced a beautified string, you can pass an optional second argument to `serialize()` to define the number of spaces to be used for the indentation.\n\n### Automatic Escaping of HTML Characters\n\nA primary feature of this package is to serialize code to a string of literal JavaScript which can be embedded in an HTML document by adding it as the contents of the `<script>` element. In order to make this safe, HTML characters and JavaScript line terminators are escaped automatically.\n\n```js\nserialize({\n haxorXSS: '</script>'\n});\n```\n\nThe above will produce the following string, HTML-escaped output which is safe to put into an HTML document as it will not cause the inline script element to terminate:\n\n```js\n'{\"haxorXSS\":\"\\\\u003C\\\\u002Fscript\\\\u003E\"}'\n```\n\n> You can pass an optional `unsafe` argument to `serialize()` for straight serialization.\n\n### Options\n\nThe `serialize()` function accepts an `options` object as its second argument. All options are being defaulted to `undefined`:\n\n#### `options.space`\n\nThis option is the same as the `space` argument that can be passed to [`JSON.stringify`][JSON.stringify]. It can be used to add whitespace and indentation to the serialized output to make it more readable.\n\n```js\nserialize(obj, {space: 2});\n```\n\n#### `options.isJSON`\n\nThis option is a signal to `serialize()` that the object being serialized does not contain any function or regexps values. This enables a hot-path that allows serialization to be over 3x faster. If you're serializing a lot of data, and know its pure JSON, then you can enable this option for a speed-up.\n\n**Note:** That when using this option, the output will still be escaped to protect against XSS.\n\n```js\nserialize(obj, {isJSON: true});\n```\n\n#### `options.unsafe`\n\nThis option is to signal `serialize()` that we want to do a straight conversion, without the XSS protection. This options needs to be explicitly set to `true`. HTML characters and JavaScript line terminators will not be escaped. You will have to roll your own.\n\n```js\nserialize(obj, {unsafe: true});\n```\n\n## Deserializing\n\nFor some use cases you might also need to deserialize the string. This is explicitly not part of this module. However, you can easily write it yourself:\n\n```js\nfunction deserialize(serializedJavascript){\n return eval('(' + serializedJavascript + ')');\n}\n```\n\n**Note:** Don't forget the parentheses around the serialized javascript, as the opening bracket `{` will be considered to be the start of a body.\n\n## License\n\nThis software is free to use under the Yahoo! Inc. BSD license.\nSee the [LICENSE file][LICENSE] for license text and copyright information.\n\n[npm]: https://www.npmjs.org/package/serialize-javascript\n[npm-badge]: https://img.shields.io/npm/v/serialize-javascript.svg?style=flat-square\n[david]: https://david-dm.org/yahoo/serialize-javascript\n[david-badge]: https://img.shields.io/david/yahoo/serialize-javascript.svg?style=flat-square\n[travis]: https://travis-ci.org/yahoo/serialize-javascript\n[travis-badge]: https://img.shields.io/travis/yahoo/serialize-javascript.svg?style=flat-square\n[express-state]: https://github.com/yahoo/express-state\n[JSON.stringify]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify\n[LICENSE]: https://github.com/yahoo/serialize-javascript/blob/master/LICENSE\naproba\n======\n\nA ridiculously light-weight function argument validator\n\n```\nvar validate = require(\"aproba\")\n\nfunction myfunc(a, b, c) {\n // `a` must be a string, `b` a number, `c` a function\n validate('SNF', arguments) // [a,b,c] is also valid\n}\n\nmyfunc('test', 23, function () {}) // ok\nmyfunc(123, 23, function () {}) // type error\nmyfunc('test', 23) // missing arg error\nmyfunc('test', 23, function () {}, true) // too many args error\n\n```\n\nValid types are:\n\n| type | description\n| :--: | :----------\n| * | matches any type\n| A | `Array.isArray` OR an `arguments` object\n| S | typeof == string\n| N | typeof == number\n| F | typeof == function\n| O | typeof == object and not type A and not type E\n| B | typeof == boolean\n| E | `instanceof Error` OR `null` **(special: see below)**\n| Z | == `null`\n\nValidation failures throw one of three exception types, distinguished by a\n`code` property of `EMISSINGARG`, `EINVALIDTYPE` or `ETOOMANYARGS`.\n\nIf you pass in an invalid type then it will throw with a code of\n`EUNKNOWNTYPE`.\n\nIf an **error** argument is found and is not null then the remaining\narguments are optional. That is, if you say `ESO` then that's like using a\nnon-magical `E` in: `E|ESO|ZSO`.\n\n### But I have optional arguments?!\n\nYou can provide more than one signature by separating them with pipes `|`.\nIf any signature matches the arguments then they'll be considered valid.\n\nSo for example, say you wanted to write a signature for\n`fs.createWriteStream`. The docs for it describe it thusly:\n\n```\nfs.createWriteStream(path[, options])\n```\n\nThis would be a signature of `SO|S`. That is, a string and and object, or\njust a string.\n\nNow, if you read the full `fs` docs, you'll see that actually path can ALSO\nbe a buffer. And options can be a string, that is:\n```\npath <String> | <Buffer>\noptions <String> | <Object>\n```\n\nTo reproduce this you have to fully enumerate all of the possible\ncombinations and that implies a signature of `SO|SS|OO|OS|S|O`. The\nawkwardness is a feature: It reminds you of the complexity you're adding to\nyour API when you do this sort of thing.\n\n### Browser support\n\nThis has no dependencies and should work in browsers, though you'll have\nnoisier stack traces.\n\n### Why this exists\n\nI wanted a very simple argument validator. It needed to do two things:\n\n1. Be more concise and easier to use than assertions\n\n2. Not encourage an infinite bikeshed of DSLs\n\nThis is why types are specified by a single character and there's no such\nthing as an optional argument. \n\nThis is not intended to validate user data. This is specifically about\nasserting the interface of your functions.\n\nIf you need greater validation, I encourage you to write them by hand or\nlook elsewhere.\n# core-js-pure\n\n[](https://gitter.im/zloirock/core-js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://www.npmjs.com/package/core-js-pure) [](http://npm-stat.com/charts.html?package=core-js-pure&author=&from=2019-03-18) [](https://travis-ci.org/zloirock/core-js) [](https://david-dm.org/zloirock/core-js?type=dev)\n\n## As advertising: the author is looking for a good job -)\n\n## [core-js@3, babel and a look into the future](https://github.com/zloirock/core-js/tree/master/docs/2019-03-19-core-js-3-babel-and-a-look-into-the-future.md)\n\n## Open Collective Sponsors\n\n[**Become a sponsor**](https://opencollective.com/core-js#sponsor) and get your logo with a link to your site on our README on GitHub and NPM.\n\n<a href=\"https://opencollective.com/core-js/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/0/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/1/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/2/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/3/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/4/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/5/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/6/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/7/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/8/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/9/avatar.svg\"></a>\n\n## Patreon Sponsors\n\n[**Become a sponsor**](https://www.patreon.com/zloirock) and get your logo with a link to your site on our README on GitHub and NPM.\n\n---\n\nModular standard library for JavaScript. Includes polyfills for [ECMAScript up to 2019](https://github.com/zloirock/core-js#ecmascript): [promises](https://github.com/zloirock/core-js#ecmascript-promise), [symbols](https://github.com/zloirock/core-js#ecmascript-symbol), [collections](https://github.com/zloirock/core-js#ecmascript-collections), iterators, [typed arrays](https://github.com/zloirock/core-js#ecmascript-typed-arrays), many other features, [ECMAScript proposals](https://github.com/zloirock/core-js#ecmascript-proposals), [some cross-platform WHATWG / W3C features and proposals](#web-standards) like [`URL`](https://github.com/zloirock/core-js#url-and-urlsearchparams). You can load only required features or use it without global namespace pollution.\n\n[*Example*](http://goo.gl/a2xexl):\n```js\nimport 'core-js'; // <- at the top of your entry point\n\nArray.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\n[1, [2, 3], [4, [5]]].flat(2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n*You can load only required features*:\n```js\nimport 'core-js/features/array/from'; // <- at the top of your entry point\nimport 'core-js/features/array/flat'; // <- at the top of your entry point\nimport 'core-js/features/set'; // <- at the top of your entry point\nimport 'core-js/features/promise'; // <- at the top of your entry point\n\nArray.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\n[1, [2, 3], [4, [5]]].flat(2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n*Or use it without global namespace pollution*:\n```js\nimport from from 'core-js-pure/features/array/from';\nimport flat from 'core-js-pure/features/array/flat';\nimport Set from 'core-js-pure/features/set';\nimport Promise from 'core-js-pure/features/promise';\n\nfrom(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\nflat([1, [2, 3], [4, [5]]], 2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n**It's a version without global namespace pollution (the third example), for more info see [`core-js` documentation](https://github.com/zloirock/core-js/blob/master/README.md)**.\n# psl (Public Suffix List)\n\n[](https://nodei.co/npm/psl/)\n\n[](https://greenkeeper.io/)\n[](https://travis-ci.org/wrangr/psl)\n[](https://david-dm.org/wrangr/psl#info=devDependencies)\n\n`psl` is a `JavaScript` domain name parser based on the\n[Public Suffix List](https://publicsuffix.org/).\n\nThis implementation is tested against the\n[test data hosted by Mozilla](http://mxr.mozilla.org/mozilla-central/source/netwerk/test/unit/data/test_psl.txt?raw=1)\nand kindly provided by [Comodo](https://www.comodo.com/).\n\n## What is the Public Suffix List?\n\nThe Public Suffix List is a cross-vendor initiative to provide an accurate list\nof domain name suffixes.\n\nThe Public Suffix List is an initiative of the Mozilla Project, but is\nmaintained as a community resource. It is available for use in any software,\nbut was originally created to meet the needs of browser manufacturers.\n\nA \"public suffix\" is one under which Internet users can directly register names.\nSome examples of public suffixes are \".com\", \".co.uk\" and \"pvt.k12.wy.us\". The\nPublic Suffix List is a list of all known public suffixes.\n\nSource: http://publicsuffix.org\n\n## Installation\n\n### Node.js\n\n```sh\nnpm install --save psl\n```\n\n### Browser\n\nDownload [psl.min.js](https://raw.githubusercontent.com/wrangr/psl/master/dist/psl.min.js)\nand include it in a script tag.\n\n```html\n<script src=\"psl.min.js\"></script>\n```\n\nThis script is browserified and wrapped in a [umd](https://github.com/umdjs/umd)\nwrapper so you should be able to use it standalone or together with a module\nloader.\n\n## API\n\n### `psl.parse(domain)`\n\nParse domain based on Public Suffix List. Returns an `Object` with the following\nproperties:\n\n* `tld`: Top level domain (this is the _public suffix_).\n* `sld`: Second level domain (the first private part of the domain name).\n* `domain`: The domain name is the `sld` + `tld`.\n* `subdomain`: Optional parts left of the domain.\n\n#### Example:\n\n```js\nvar psl = require('psl');\n\n// Parse domain without subdomain\nvar parsed = psl.parse('google.com');\nconsole.log(parsed.tld); // 'com'\nconsole.log(parsed.sld); // 'google'\nconsole.log(parsed.domain); // 'google.com'\nconsole.log(parsed.subdomain); // null\n\n// Parse domain with subdomain\nvar parsed = psl.parse('www.google.com');\nconsole.log(parsed.tld); // 'com'\nconsole.log(parsed.sld); // 'google'\nconsole.log(parsed.domain); // 'google.com'\nconsole.log(parsed.subdomain); // 'www'\n\n// Parse domain with nested subdomains\nvar parsed = psl.parse('a.b.c.d.foo.com');\nconsole.log(parsed.tld); // 'com'\nconsole.log(parsed.sld); // 'foo'\nconsole.log(parsed.domain); // 'foo.com'\nconsole.log(parsed.subdomain); // 'a.b.c.d'\n```\n\n### `psl.get(domain)`\n\nGet domain name, `sld` + `tld`. Returns `null` if not valid.\n\n#### Example:\n\n```js\nvar psl = require('psl');\n\n// null input.\npsl.get(null); // null\n\n// Mixed case.\npsl.get('COM'); // null\npsl.get('example.COM'); // 'example.com'\npsl.get('WwW.example.COM'); // 'example.com'\n\n// Unlisted TLD.\npsl.get('example'); // null\npsl.get('example.example'); // 'example.example'\npsl.get('b.example.example'); // 'example.example'\npsl.get('a.b.example.example'); // 'example.example'\n\n// TLD with only 1 rule.\npsl.get('biz'); // null\npsl.get('domain.biz'); // 'domain.biz'\npsl.get('b.domain.biz'); // 'domain.biz'\npsl.get('a.b.domain.biz'); // 'domain.biz'\n\n// TLD with some 2-level rules.\npsl.get('uk.com'); // null);\npsl.get('example.uk.com'); // 'example.uk.com');\npsl.get('b.example.uk.com'); // 'example.uk.com');\n\n// More complex TLD.\npsl.get('c.kobe.jp'); // null\npsl.get('b.c.kobe.jp'); // 'b.c.kobe.jp'\npsl.get('a.b.c.kobe.jp'); // 'b.c.kobe.jp'\npsl.get('city.kobe.jp'); // 'city.kobe.jp'\npsl.get('www.city.kobe.jp'); // 'city.kobe.jp'\n\n// IDN labels.\npsl.get('食狮.com.cn'); // '食狮.com.cn'\npsl.get('食狮.公司.cn'); // '食狮.公司.cn'\npsl.get('www.食狮.公司.cn'); // '食狮.公司.cn'\n\n// Same as above, but punycoded.\npsl.get('xn--85x722f.com.cn'); // 'xn--85x722f.com.cn'\npsl.get('xn--85x722f.xn--55qx5d.cn'); // 'xn--85x722f.xn--55qx5d.cn'\npsl.get('www.xn--85x722f.xn--55qx5d.cn'); // 'xn--85x722f.xn--55qx5d.cn'\n```\n\n### `psl.isValid(domain)`\n\nCheck whether a domain has a valid Public Suffix. Returns a `Boolean` indicating\nwhether the domain has a valid Public Suffix.\n\n#### Example\n\n```js\nvar psl = require('psl');\n\npsl.isValid('google.com'); // true\npsl.isValid('www.google.com'); // true\npsl.isValid('x.yz'); // false\n```\n\n## Testing and Building\n\nTest are written using [`mocha`](https://mochajs.org/) and can be\nrun in two different environments: `node` and `phantomjs`.\n\n```sh\n# This will run `eslint`, `mocha` and `karma`.\nnpm test\n\n# Individual test environments\n# Run tests in node only.\n./node_modules/.bin/mocha test\n# Run tests in phantomjs only.\n./node_modules/.bin/karma start ./karma.conf.js --single-run\n\n# Build data (parse raw list) and create dist files\nnpm run build\n```\n\nFeel free to fork if you see possible improvements!\n\n## Acknowledgements\n\n* Mozilla Foundation's [Public Suffix List](https://publicsuffix.org/)\n* Thanks to Rob Stradling of [Comodo](https://www.comodo.com/) for providing\n test data.\n* Inspired by [weppos/publicsuffix-ruby](https://github.com/weppos/publicsuffix-ruby)\n\n## License\n\nThe MIT License (MIT)\n\nCopyright (c) 2017 Lupo Montero <lupomontero@gmail.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\n# buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][npm-url]\n\n#### The buffer module from [node.js](https://nodejs.org/), for the browser.\n\n[![saucelabs][saucelabs-image]][saucelabs-url]\n\n[travis-image]: https://img.shields.io/travis/feross/buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/buffer\n[npm-image]: https://img.shields.io/npm/v/buffer.svg\n[npm-url]: https://npmjs.org/package/buffer\n[downloads-image]: https://img.shields.io/npm/dm/buffer.svg\n[saucelabs-image]: https://saucelabs.com/browser-matrix/buffer.svg\n[saucelabs-url]: https://saucelabs.com/u/buffer\n\nWith [browserify](http://browserify.org), simply `require('buffer')` or use the `Buffer` global and you will get this module.\n\nThe goal is to provide an API that is 100% identical to\n[node's Buffer API](https://nodejs.org/api/buffer.html). Read the\n[official docs](https://nodejs.org/api/buffer.html) for the full list of properties,\ninstance methods, and class methods that are supported.\n\n## features\n\n- Manipulate binary data like a boss, in all browsers -- even IE6!\n- Super fast. Backed by Typed Arrays (`Uint8Array`/`ArrayBuffer`, not `Object`)\n- Extremely small bundle size (**5.04KB minified + gzipped**, 35.5KB with comments)\n- Excellent browser support (IE 6+, Chrome 4+, Firefox 3+, Safari 5.1+, Opera 11+, iOS, etc.)\n- Preserves Node API exactly, with one minor difference (see below)\n- Square-bracket `buf[4]` notation works, even in old browsers like IE6!\n- Does not modify any browser prototypes or put anything on `window`\n- Comprehensive test suite (including all buffer tests from node.js core)\n\n## install\n\nTo use this module directly (without browserify), install it:\n\n```bash\nnpm install buffer\n```\n\nThis module was previously called **native-buffer-browserify**, but please use **buffer**\nfrom now on.\n\nA standalone bundle is available [here](https://wzrd.in/standalone/buffer), for non-browserify users.\n\n## usage\n\nThe module's API is identical to node's `Buffer` API. Read the\n[official docs](https://nodejs.org/api/buffer.html) for the full list of properties,\ninstance methods, and class methods that are supported.\n\nAs mentioned above, `require('buffer')` or use the `Buffer` global with\n[browserify](http://browserify.org) and this module will automatically be included\nin your bundle. Almost any npm module will work in the browser, even if it assumes that\nthe node `Buffer` API will be available.\n\nTo depend on this module explicitly (without browserify), require it like this:\n\n```js\nvar Buffer = require('buffer/').Buffer // note: the trailing slash is important!\n```\n\nTo require this module explicitly, use `require('buffer/')` which tells the node.js module\nlookup algorithm (also used by browserify) to use the **npm module** named `buffer`\ninstead of the **node.js core** module named `buffer`!\n\n## how does it work?\n\nThe Buffer constructor returns instances of `Uint8Array` that have their prototype\nchanged to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of `Uint8Array`,\nso the returned instances will have all the node `Buffer` methods and the\n`Uint8Array` methods. Square bracket notation works as expected -- it returns a\nsingle octet.\n\nThe `Uint8Array` prototype remains unmodified.\n\n## one minor difference\n\n#### In old browsers, `buf.slice()` does not modify parent buffer's memory\n\nIf you only support modern browsers (specifically, those with typed array support),\nthen this issue does not affect you. If you support super old browsers, then read on.\n\nIn node, the `slice()` method returns a new `Buffer` that shares underlying memory\nwith the original Buffer. When you modify one buffer, you modify the other.\n[Read more.](https://nodejs.org/api/buffer.html#buffer_buf_slice_start_end)\n\nIn browsers with typed array support, this `Buffer` implementation supports this\nbehavior. In browsers without typed arrays, an alternate buffer implementation is\nused that is based on `Object` which has no mechanism to point separate\n`Buffer`s to the same underlying slab of memory.\n\nYou can see which browser versions lack typed array support\n[here](https://github.com/feross/buffer/blob/master/index.js#L22-L48).\n\n## tracking the latest node api\n\nThis module tracks the Buffer API in the latest (unstable) version of node.js. The Buffer\nAPI is considered **stable** in the\n[node stability index](https://nodejs.org/docs/latest/api/documentation.html#documentation_stability_index),\nso it is unlikely that there will ever be breaking changes.\nNonetheless, when/if the Buffer API changes in node, this module's API will change\naccordingly.\n\n## related packages\n\n- [`buffer-equals`](https://www.npmjs.com/package/buffer-equals) - Node.js 0.12 buffer.equals() ponyfill\n- [`buffer-reverse`](https://www.npmjs.com/package/buffer-reverse) - A lite module for reverse-operations on buffers\n- [`buffer-xor`](https://www.npmjs.com/package/buffer-xor) - A simple module for bitwise-xor on buffers\n- [`is-buffer`](https://www.npmjs.com/package/is-buffer) - Determine if an object is a Buffer without including the whole `Buffer` package\n- [`typedarray-to-buffer`](https://www.npmjs.com/package/typedarray-to-buffer) - Convert a typed array to a Buffer without a copy\n\n## performance\n\nSee perf tests in `/perf`.\n\n`BrowserBuffer` is the browser `buffer` module (this repo). `Uint8Array` is included as a\nsanity check (since `BrowserBuffer` uses `Uint8Array` under the hood, `Uint8Array` will\nalways be at least a bit faster). Finally, `NodeBuffer` is the node.js buffer module,\nwhich is included to compare against.\n\nNOTE: Performance has improved since these benchmarks were taken. PR welcoem to update the README.\n\n### Chrome 38\n\n| Method | Operations | Accuracy | Sampled | Fastest |\n|:-------|:-----------|:---------|:--------|:-------:|\n| BrowserBuffer#bracket-notation | 11,457,464 ops/sec | ±0.86% | 66 | ✓ |\n| Uint8Array#bracket-notation | 10,824,332 ops/sec | ±0.74% | 65 | |\n| | | | |\n| BrowserBuffer#concat | 450,532 ops/sec | ±0.76% | 68 | |\n| Uint8Array#concat | 1,368,911 ops/sec | ±1.50% | 62 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16000) | 903,001 ops/sec | ±0.96% | 67 | |\n| Uint8Array#copy(16000) | 1,422,441 ops/sec | ±1.04% | 66 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16) | 11,431,358 ops/sec | ±0.46% | 69 | |\n| Uint8Array#copy(16) | 13,944,163 ops/sec | ±1.12% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#new(16000) | 106,329 ops/sec | ±6.70% | 44 | |\n| Uint8Array#new(16000) | 131,001 ops/sec | ±2.85% | 31 | ✓ |\n| | | | |\n| BrowserBuffer#new(16) | 1,554,491 ops/sec | ±1.60% | 65 | |\n| Uint8Array#new(16) | 6,623,930 ops/sec | ±1.66% | 65 | ✓ |\n| | | | |\n| BrowserBuffer#readDoubleBE | 112,830 ops/sec | ±0.51% | 69 | ✓ |\n| DataView#getFloat64 | 93,500 ops/sec | ±0.57% | 68 | |\n| | | | |\n| BrowserBuffer#readFloatBE | 146,678 ops/sec | ±0.95% | 68 | ✓ |\n| DataView#getFloat32 | 99,311 ops/sec | ±0.41% | 67 | |\n| | | | |\n| BrowserBuffer#readUInt32LE | 843,214 ops/sec | ±0.70% | 69 | ✓ |\n| DataView#getUint32 | 103,024 ops/sec | ±0.64% | 67 | |\n| | | | |\n| BrowserBuffer#slice | 1,013,941 ops/sec | ±0.75% | 67 | |\n| Uint8Array#subarray | 1,903,928 ops/sec | ±0.53% | 67 | ✓ |\n| | | | |\n| BrowserBuffer#writeFloatBE | 61,387 ops/sec | ±0.90% | 67 | |\n| DataView#setFloat32 | 141,249 ops/sec | ±0.40% | 66 | ✓ |\n\n### Firefox 33\n\n| Method | Operations | Accuracy | Sampled | Fastest |\n|:-------|:-----------|:---------|:--------|:-------:|\n| BrowserBuffer#bracket-notation | 20,800,421 ops/sec | ±1.84% | 60 | |\n| Uint8Array#bracket-notation | 20,826,235 ops/sec | ±2.02% | 61 | ✓ |\n| | | | |\n| BrowserBuffer#concat | 153,076 ops/sec | ±2.32% | 61 | |\n| Uint8Array#concat | 1,255,674 ops/sec | ±8.65% | 52 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16000) | 1,105,312 ops/sec | ±1.16% | 63 | |\n| Uint8Array#copy(16000) | 1,615,911 ops/sec | ±0.55% | 66 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16) | 16,357,599 ops/sec | ±0.73% | 68 | |\n| Uint8Array#copy(16) | 31,436,281 ops/sec | ±1.05% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#new(16000) | 52,995 ops/sec | ±6.01% | 35 | |\n| Uint8Array#new(16000) | 87,686 ops/sec | ±5.68% | 45 | ✓ |\n| | | | |\n| BrowserBuffer#new(16) | 252,031 ops/sec | ±1.61% | 66 | |\n| Uint8Array#new(16) | 8,477,026 ops/sec | ±0.49% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#readDoubleBE | 99,871 ops/sec | ±0.41% | 69 | |\n| DataView#getFloat64 | 285,663 ops/sec | ±0.70% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#readFloatBE | 115,540 ops/sec | ±0.42% | 69 | |\n| DataView#getFloat32 | 288,722 ops/sec | ±0.82% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#readUInt32LE | 633,926 ops/sec | ±1.08% | 67 | ✓ |\n| DataView#getUint32 | 294,808 ops/sec | ±0.79% | 64 | |\n| | | | |\n| BrowserBuffer#slice | 349,425 ops/sec | ±0.46% | 69 | |\n| Uint8Array#subarray | 5,965,819 ops/sec | ±0.60% | 65 | ✓ |\n| | | | |\n| BrowserBuffer#writeFloatBE | 59,980 ops/sec | ±0.41% | 67 | |\n| DataView#setFloat32 | 317,634 ops/sec | ±0.63% | 68 | ✓ |\n\n### Safari 8\n\n| Method | Operations | Accuracy | Sampled | Fastest |\n|:-------|:-----------|:---------|:--------|:-------:|\n| BrowserBuffer#bracket-notation | 10,279,729 ops/sec | ±2.25% | 56 | ✓ |\n| Uint8Array#bracket-notation | 10,030,767 ops/sec | ±2.23% | 59 | |\n| | | | |\n| BrowserBuffer#concat | 144,138 ops/sec | ±1.38% | 65 | |\n| Uint8Array#concat | 4,950,764 ops/sec | ±1.70% | 63 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16000) | 1,058,548 ops/sec | ±1.51% | 64 | |\n| Uint8Array#copy(16000) | 1,409,666 ops/sec | ±1.17% | 65 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16) | 6,282,529 ops/sec | ±1.88% | 58 | |\n| Uint8Array#copy(16) | 11,907,128 ops/sec | ±2.87% | 58 | ✓ |\n| | | | |\n| BrowserBuffer#new(16000) | 101,663 ops/sec | ±3.89% | 57 | |\n| Uint8Array#new(16000) | 22,050,818 ops/sec | ±6.51% | 46 | ✓ |\n| | | | |\n| BrowserBuffer#new(16) | 176,072 ops/sec | ±2.13% | 64 | |\n| Uint8Array#new(16) | 24,385,731 ops/sec | ±5.01% | 51 | ✓ |\n| | | | |\n| BrowserBuffer#readDoubleBE | 41,341 ops/sec | ±1.06% | 67 | |\n| DataView#getFloat64 | 322,280 ops/sec | ±0.84% | 68 | ✓ |\n| | | | |\n| BrowserBuffer#readFloatBE | 46,141 ops/sec | ±1.06% | 65 | |\n| DataView#getFloat32 | 337,025 ops/sec | ±0.43% | 69 | ✓ |\n| | | | |\n| BrowserBuffer#readUInt32LE | 151,551 ops/sec | ±1.02% | 66 | |\n| DataView#getUint32 | 308,278 ops/sec | ±0.94% | 67 | ✓ |\n| | | | |\n| BrowserBuffer#slice | 197,365 ops/sec | ±0.95% | 66 | |\n| Uint8Array#subarray | 9,558,024 ops/sec | ±3.08% | 58 | ✓ |\n| | | | |\n| BrowserBuffer#writeFloatBE | 17,518 ops/sec | ±1.03% | 63 | |\n| DataView#setFloat32 | 319,751 ops/sec | ±0.48% | 68 | ✓ |\n\n### Node 0.11.14\n\n| Method | Operations | Accuracy | Sampled | Fastest |\n|:-------|:-----------|:---------|:--------|:-------:|\n| BrowserBuffer#bracket-notation | 10,489,828 ops/sec | ±3.25% | 90 | |\n| Uint8Array#bracket-notation | 10,534,884 ops/sec | ±0.81% | 92 | ✓ |\n| NodeBuffer#bracket-notation | 10,389,910 ops/sec | ±0.97% | 87 | |\n| | | | |\n| BrowserBuffer#concat | 487,830 ops/sec | ±2.58% | 88 | |\n| Uint8Array#concat | 1,814,327 ops/sec | ±1.28% | 88 | ✓ |\n| NodeBuffer#concat | 1,636,523 ops/sec | ±1.88% | 73 | |\n| | | | |\n| BrowserBuffer#copy(16000) | 1,073,665 ops/sec | ±0.77% | 90 | |\n| Uint8Array#copy(16000) | 1,348,517 ops/sec | ±0.84% | 89 | ✓ |\n| NodeBuffer#copy(16000) | 1,289,533 ops/sec | ±0.82% | 93 | |\n| | | | |\n| BrowserBuffer#copy(16) | 12,782,706 ops/sec | ±0.74% | 85 | |\n| Uint8Array#copy(16) | 14,180,427 ops/sec | ±0.93% | 92 | ✓ |\n| NodeBuffer#copy(16) | 11,083,134 ops/sec | ±1.06% | 89 | |\n| | | | |\n| BrowserBuffer#new(16000) | 141,678 ops/sec | ±3.30% | 67 | |\n| Uint8Array#new(16000) | 161,491 ops/sec | ±2.96% | 60 | |\n| NodeBuffer#new(16000) | 292,699 ops/sec | ±3.20% | 55 | ✓ |\n| | | | |\n| BrowserBuffer#new(16) | 1,655,466 ops/sec | ±2.41% | 82 | |\n| Uint8Array#new(16) | 14,399,926 ops/sec | ±0.91% | 94 | ✓ |\n| NodeBuffer#new(16) | 3,894,696 ops/sec | ±0.88% | 92 | |\n| | | | |\n| BrowserBuffer#readDoubleBE | 109,582 ops/sec | ±0.75% | 93 | ✓ |\n| DataView#getFloat64 | 91,235 ops/sec | ±0.81% | 90 | |\n| NodeBuffer#readDoubleBE | 88,593 ops/sec | ±0.96% | 81 | |\n| | | | |\n| BrowserBuffer#readFloatBE | 139,854 ops/sec | ±1.03% | 85 | ✓ |\n| DataView#getFloat32 | 98,744 ops/sec | ±0.80% | 89 | |\n| NodeBuffer#readFloatBE | 92,769 ops/sec | ±0.94% | 93 | |\n| | | | |\n| BrowserBuffer#readUInt32LE | 710,861 ops/sec | ±0.82% | 92 | |\n| DataView#getUint32 | 117,893 ops/sec | ±0.84% | 91 | |\n| NodeBuffer#readUInt32LE | 851,412 ops/sec | ±0.72% | 93 | ✓ |\n| | | | |\n| BrowserBuffer#slice | 1,673,877 ops/sec | ±0.73% | 94 | |\n| Uint8Array#subarray | 6,919,243 ops/sec | ±0.67% | 90 | ✓ |\n| NodeBuffer#slice | 4,617,604 ops/sec | ±0.79% | 93 | |\n| | | | |\n| BrowserBuffer#writeFloatBE | 66,011 ops/sec | ±0.75% | 93 | |\n| DataView#setFloat32 | 127,760 ops/sec | ±0.72% | 93 | ✓ |\n| NodeBuffer#writeFloatBE | 103,352 ops/sec | ±0.83% | 93 | |\n\n### iojs 1.8.1\n\n| Method | Operations | Accuracy | Sampled | Fastest |\n|:-------|:-----------|:---------|:--------|:-------:|\n| BrowserBuffer#bracket-notation | 10,990,488 ops/sec | ±1.11% | 91 | |\n| Uint8Array#bracket-notation | 11,268,757 ops/sec | ±0.65% | 97 | |\n| NodeBuffer#bracket-notation | 11,353,260 ops/sec | ±0.83% | 94 | ✓ |\n| | | | |\n| BrowserBuffer#concat | 378,954 ops/sec | ±0.74% | 94 | |\n| Uint8Array#concat | 1,358,288 ops/sec | ±0.97% | 87 | |\n| NodeBuffer#concat | 1,934,050 ops/sec | ±1.11% | 78 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16000) | 894,538 ops/sec | ±0.56% | 84 | |\n| Uint8Array#copy(16000) | 1,442,656 ops/sec | ±0.71% | 96 | |\n| NodeBuffer#copy(16000) | 1,457,898 ops/sec | ±0.53% | 92 | ✓ |\n| | | | |\n| BrowserBuffer#copy(16) | 12,870,457 ops/sec | ±0.67% | 95 | |\n| Uint8Array#copy(16) | 16,643,989 ops/sec | ±0.61% | 93 | ✓ |\n| NodeBuffer#copy(16) | 14,885,848 ops/sec | ±0.74% | 94 | |\n| | | | |\n| BrowserBuffer#new(16000) | 109,264 ops/sec | ±4.21% | 63 | |\n| Uint8Array#new(16000) | 138,916 ops/sec | ±1.87% | 61 | |\n| NodeBuffer#new(16000) | 281,449 ops/sec | ±3.58% | 51 | ✓ |\n| | | | |\n| BrowserBuffer#new(16) | 1,362,935 ops/sec | ±0.56% | 99 | |\n| Uint8Array#new(16) | 6,193,090 ops/sec | ±0.64% | 95 | ✓ |\n| NodeBuffer#new(16) | 4,745,425 ops/sec | ±1.56% | 90 | |\n| | | | |\n| BrowserBuffer#readDoubleBE | 118,127 ops/sec | ±0.59% | 93 | ✓ |\n| DataView#getFloat64 | 107,332 ops/sec | ±0.65% | 91 | |\n| NodeBuffer#readDoubleBE | 116,274 ops/sec | ±0.94% | 95 | |\n| | | | |\n| BrowserBuffer#readFloatBE | 150,326 ops/sec | ±0.58% | 95 | ✓ |\n| DataView#getFloat32 | 110,541 ops/sec | ±0.57% | 98 | |\n| NodeBuffer#readFloatBE | 121,599 ops/sec | ±0.60% | 87 | |\n| | | | |\n| BrowserBuffer#readUInt32LE | 814,147 ops/sec | ±0.62% | 93 | |\n| DataView#getUint32 | 137,592 ops/sec | ±0.64% | 90 | |\n| NodeBuffer#readUInt32LE | 931,650 ops/sec | ±0.71% | 96 | ✓ |\n| | | | |\n| BrowserBuffer#slice | 878,590 ops/sec | ±0.68% | 93 | |\n| Uint8Array#subarray | 2,843,308 ops/sec | ±1.02% | 90 | |\n| NodeBuffer#slice | 4,998,316 ops/sec | ±0.68% | 90 | ✓ |\n| | | | |\n| BrowserBuffer#writeFloatBE | 65,927 ops/sec | ±0.74% | 93 | |\n| DataView#setFloat32 | 139,823 ops/sec | ±0.97% | 89 | ✓ |\n| NodeBuffer#writeFloatBE | 135,763 ops/sec | ±0.65% | 96 | |\n| | | | |\n\n## Testing the project\n\nFirst, install the project:\n\n npm install\n\nThen, to run tests in Node.js, run:\n\n npm run test-node\n\nTo test locally in a browser, you can run:\n\n npm run test-browser-local\n\nThis will print out a URL that you can then open in a browser to run the tests, using [Zuul](https://github.com/defunctzombie/zuul).\n\nTo run automated browser tests using Saucelabs, ensure that your `SAUCE_USERNAME` and `SAUCE_ACCESS_KEY` environment variables are set, then run:\n\n npm test\n\nThis is what's run in Travis, to check against various browsers. The list of browsers is kept in the `.zuul.yml` file.\n\n## JavaScript Standard Style\n\nThis module uses [JavaScript Standard Style](https://github.com/feross/standard).\n\n[](https://github.com/feross/standard)\n\nTo test that the code conforms to the style, `npm install` and run:\n\n ./node_modules/.bin/standard\n\n## credit\n\nThis was originally forked from [buffer-browserify](https://github.com/toots/buffer-browserify).\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org), and other contributors. Originally forked from an MIT-licensed module by Romain Beauxis.\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# is-descriptor [](https://www.npmjs.com/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://travis-ci.org/jonschlinkert/is-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-descriptor\n```\n\n## Usage\n\n```js\nvar isDescriptor = require('is-descriptor');\n\nisDescriptor({value: 'foo'})\n//=> true\nisDescriptor({get: function(){}, set: function(){}})\n//=> true\nisDescriptor({get: 'foo', set: function(){}})\n//=> false\n```\n\nYou may also check for a descriptor by passing an object as the first argument and property name (`string`) as the second argument.\n\n```js\nvar obj = {};\nobj.foo = 'abc';\n\nObject.defineProperty(obj, 'bar', {\n value: 'xyz'\n});\n\nisDescriptor(obj, 'foo');\n//=> true\nisDescriptor(obj, 'bar');\n//=> true\n```\n\n## Examples\n\n### value type\n\n`false` when not an object\n\n```js\nisDescriptor('a');\n//=> false\nisDescriptor(null);\n//=> false\nisDescriptor([]);\n//=> false\n```\n\n### data descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({value: 'foo'});\n//=> true\nisDescriptor({value: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', get: noop});\n//=> false\nisDescriptor({get: noop, value: noop});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({value: 'foo', enumerable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', configurable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', writable: 'foo'});\n//=> false\n```\n\n### accessor descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({get: noop, set: noop});\n//=> true\nisDescriptor({get: noop});\n//=> true\nisDescriptor({set: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({get: noop, set: noop, bar: 'baz'});\n//=> false\nisDescriptor({get: noop, writable: true});\n//=> false\nisDescriptor({get: noop, value: true});\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisDescriptor({get: noop, set: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: noop});\n//=> false\nisDescriptor({get: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: 'baz'});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({get: noop, set: noop, enumerable: 'foo'});\n//=> false\nisDescriptor({set: noop, configurable: 'foo'});\n//=> false\nisDescriptor({get: noop, configurable: 'foo'});\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 24 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\nThis folder contains implementations of polyfills. It's not recommended to include in your projects directly if you don't completely understand what are you doing.\n# ignore-walk\n\n[](https://travis-ci.org/isaacs/ignore-walk)\n\nNested/recursive `.gitignore`/`.npmignore` parsing and filtering.\n\nWalk a directory creating a list of entries, parsing any `.ignore`\nfiles met along the way to exclude files.\n\n## USAGE\n\n```javascript\nconst walk = require('ignore-walk')\n\n// All options are optional, defaults provided.\n\n// this function returns a promise, but you can also pass a cb\n// if you like that approach better.\nwalk({\n path: '...', // root dir to start in. defaults to process.cwd()\n ignoreFiles: [ '.gitignore' ], // list of filenames. defaults to ['.ignore']\n includeEmpty: true|false, // true to include empty dirs, default false\n follow: true|false // true to follow symlink dirs, default false\n}, callback)\n\n// to walk synchronously, do it this way:\nconst result = walk.sync({ path: '/wow/such/filepath' })\n```\n\nIf you want to get at the underlying classes, they're at `walk.Walker`\nand `walk.WalkerSync`.\n\n## OPTIONS\n\n* `path` The path to start in. Defaults to `process.cwd()`\n\n* `ignoreFiles` Filenames to treat as ignore files. The default is\n `['.ignore']`. (This is where you'd put `.gitignore` or\n `.npmignore` or whatever.) If multiple ignore files are in a\n directory, then rules from each are applied in the order that the\n files are listed.\n\n* `includeEmpty` Set to `true` to include empty directories, assuming\n they are not excluded by any of the ignore rules. If not set, then\n this follows the standard `git` behavior of not including\n directories that are empty.\n\n Note: this will cause an empty directory to be included if it\n would contain an included entry, even if it would have otherwise\n been excluded itself.\n\n For example, given the rules `*` (ignore everything) and `!/a/b/c`\n (re-include the entry at `/a/b/c`), the directory `/a/b` will be\n included if it is empty.\n\n* `follow` Set to `true` to treat symbolically linked directories as\n directories, recursing into them. There is no handling for nested\n symlinks, so `ELOOP` errors can occur in some cases when using this\n option. Defaults to `false`.\n# pseudomap\n\nA thing that is a lot like ES6 `Map`, but without iterators, for use\nin environments where `for..of` syntax and `Map` are not available.\n\nIf you need iterators, or just in general a more faithful polyfill to\nES6 Maps, check out [es6-map](http://npm.im/es6-map).\n\nIf you are in an environment where `Map` is supported, then that will\nbe returned instead, unless `process.env.TEST_PSEUDOMAP` is set.\n\nYou can use any value as keys, and any value as data. Setting again\nwith the identical key will overwrite the previous value.\n\nInternally, data is stored on an `Object.create(null)` style object.\nThe key is coerced to a string to generate the key on the internal\ndata-bag object. The original key used is stored along with the data.\n\nIn the event of a stringified-key collision, a new key is generated by\nappending an increasing number to the stringified-key until finding\neither the intended key or an empty spot.\n\nNote that because object traversal order of plain objects is not\nguaranteed to be identical to insertion order, the insertion order\nguarantee of `Map.prototype.forEach` is not guaranteed in this\nimplementation. However, in all versions of Node.js and V8 where this\nmodule works, `forEach` does traverse data in insertion order.\n\n## API\n\nMost of the [Map\nAPI](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map),\nwith the following exceptions:\n\n1. A `Map` object is not an iterator.\n2. `values`, `keys`, and `entries` methods are not implemented,\n because they return iterators.\n3. The argument to the constructor can be an Array of `[key, value]`\n pairs, or a `Map` or `PseudoMap` object. But, since iterators\n aren't used, passing any plain-old iterator won't initialize the\n map properly.\n\n## USAGE\n\nUse just like a regular ES6 Map.\n\n```javascript\nvar PseudoMap = require('pseudomap')\n\n// optionally provide a pseudomap, or an array of [key,value] pairs\n// as the argument to initialize the map with\nvar myMap = new PseudoMap()\n\nmyMap.set(1, 'number 1')\nmyMap.set('1', 'string 1')\nvar akey = {}\nvar bkey = {}\nmyMap.set(akey, { some: 'data' })\nmyMap.set(bkey, { some: 'other data' })\n```\nThis folder contains entry points for [stable ECMAScript features](https://github.com/zloirock/core-js/tree/v3#ecmascript) with dependencies.\n#define-properties <sup>[![Version Badge][npm-version-svg]][package-url]</sup>\n\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][npm-badge-png]][package-url]\n\n[![browser support][testling-svg]][testling-url]\n\nDefine multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.\nExisting properties are not overridden. Accepts a map of property names to a predicate that, when true, force-overrides.\n\n## Example\n\n```js\nvar define = require('define-properties');\nvar assert = require('assert');\n\nvar obj = define({ a: 1, b: 2 }, {\n\ta: 10,\n\tb: 20,\n\tc: 30\n});\nassert(obj.a === 1);\nassert(obj.b === 2);\nassert(obj.c === 30);\nif (define.supportsDescriptors) {\n\tassert.deepEqual(Object.keys(obj), ['a', 'b']);\n\tassert.deepEqual(Object.getOwnPropertyDescriptor(obj, 'c'), {\n\t\tconfigurable: true,\n\t\tenumerable: false,\n\t\tvalue: 30,\n\t\twritable: false\n\t});\n}\n```\n\nThen, with predicates:\n```js\nvar define = require('define-properties');\nvar assert = require('assert');\n\nvar obj = define({ a: 1, b: 2, c: 3 }, {\n\ta: 10,\n\tb: 20,\n\tc: 30\n}, {\n\ta: function () { return false; },\n\tb: function () { return true; }\n});\nassert(obj.a === 1);\nassert(obj.b === 20);\nassert(obj.c === 3);\nif (define.supportsDescriptors) {\n\tassert.deepEqual(Object.keys(obj), ['a', 'c']);\n\tassert.deepEqual(Object.getOwnPropertyDescriptor(obj, 'b'), {\n\t\tconfigurable: true,\n\t\tenumerable: false,\n\t\tvalue: 20,\n\t\twritable: false\n\t});\n}\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[package-url]: https://npmjs.org/package/define-properties\n[npm-version-svg]: http://versionbadg.es/ljharb/define-properties.svg\n[travis-svg]: https://travis-ci.org/ljharb/define-properties.svg\n[travis-url]: https://travis-ci.org/ljharb/define-properties\n[deps-svg]: https://david-dm.org/ljharb/define-properties.svg\n[deps-url]: https://david-dm.org/ljharb/define-properties\n[dev-deps-svg]: https://david-dm.org/ljharb/define-properties/dev-status.svg\n[dev-deps-url]: https://david-dm.org/ljharb/define-properties#info=devDependencies\n[testling-svg]: https://ci.testling.com/ljharb/define-properties.png\n[testling-url]: https://ci.testling.com/ljharb/define-properties\n[npm-badge-png]: https://nodei.co/npm/define-properties.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/define-properties.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/define-properties.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=define-properties\nsemver(1) -- The semantic versioner for npm\n===========================================\n\n## Install\n\n```bash\nnpm install --save semver\n````\n\n## Usage\n\nAs a node module:\n\n```js\nconst semver = require('semver')\n\nsemver.valid('1.2.3') // '1.2.3'\nsemver.valid('a.b.c') // null\nsemver.clean(' =v1.2.3 ') // '1.2.3'\nsemver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true\nsemver.gt('1.2.3', '9.8.7') // false\nsemver.lt('1.2.3', '9.8.7') // true\nsemver.minVersion('>=1.0.0') // '1.0.0'\nsemver.valid(semver.coerce('v2')) // '2.0.0'\nsemver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'\n```\n\nAs a command-line utility:\n\n```\n$ semver -h\n\nA JavaScript implementation of the https://semver.org/ specification\nCopyright Isaac Z. Schlueter\n\nUsage: semver [options] <version> [<version> [...]]\nPrints valid versions sorted by SemVer precedence\n\nOptions:\n-r --range <range>\n Print versions that match the specified range.\n\n-i --increment [<level>]\n Increment a version by the specified level. Level can\n be one of: major, minor, patch, premajor, preminor,\n prepatch, or prerelease. Default level is 'patch'.\n Only one version may be specified.\n\n--preid <identifier>\n Identifier to be used to prefix premajor, preminor,\n prepatch or prerelease version increments.\n\n-l --loose\n Interpret versions and ranges loosely\n\n-p --include-prerelease\n Always include prerelease versions in range matching\n\n-c --coerce\n Coerce a string into SemVer if possible\n (does not imply --loose)\n\nProgram exits successfully if any valid version satisfies\nall supplied ranges, and prints all satisfying versions.\n\nIf no satisfying versions are found, then exits failure.\n\nVersions are printed in ascending order, so supplying\nmultiple versions to the utility will just sort them.\n```\n\n## Versions\n\nA \"version\" is described by the `v2.0.0` specification found at\n<https://semver.org/>.\n\nA leading `\"=\"` or `\"v\"` character is stripped off and ignored.\n\n## Ranges\n\nA `version range` is a set of `comparators` which specify versions\nthat satisfy the range.\n\nA `comparator` is composed of an `operator` and a `version`. The set\nof primitive `operators` is:\n\n* `<` Less than\n* `<=` Less than or equal to\n* `>` Greater than\n* `>=` Greater than or equal to\n* `=` Equal. If no operator is specified, then equality is assumed,\n so this operator is optional, but MAY be included.\n\nFor example, the comparator `>=1.2.7` would match the versions\n`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`\nor `1.1.0`.\n\nComparators can be joined by whitespace to form a `comparator set`,\nwhich is satisfied by the **intersection** of all of the comparators\nit includes.\n\nA range is composed of one or more comparator sets, joined by `||`. A\nversion matches a range if and only if every comparator in at least\none of the `||`-separated comparator sets is satisfied by the version.\n\nFor example, the range `>=1.2.7 <1.3.0` would match the versions\n`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,\nor `1.1.0`.\n\nThe range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,\n`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.\n\n### Prerelease Tags\n\nIf a version has a prerelease tag (for example, `1.2.3-alpha.3`) then\nit will only be allowed to satisfy comparator sets if at least one\ncomparator with the same `[major, minor, patch]` tuple also has a\nprerelease tag.\n\nFor example, the range `>1.2.3-alpha.3` would be allowed to match the\nversion `1.2.3-alpha.7`, but it would *not* be satisfied by\n`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically \"greater\nthan\" `1.2.3-alpha.3` according to the SemVer sort rules. The version\nrange only accepts prerelease tags on the `1.2.3` version. The\nversion `3.4.5` *would* satisfy the range, because it does not have a\nprerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.\n\nThe purpose for this behavior is twofold. First, prerelease versions\nfrequently are updated very quickly, and contain many breaking changes\nthat are (by the author's design) not yet fit for public consumption.\nTherefore, by default, they are excluded from range matching\nsemantics.\n\nSecond, a user who has opted into using a prerelease version has\nclearly indicated the intent to use *that specific* set of\nalpha/beta/rc versions. By including a prerelease tag in the range,\nthe user is indicating that they are aware of the risk. However, it\nis still not appropriate to assume that they have opted into taking a\nsimilar risk on the *next* set of prerelease versions.\n\nNote that this behavior can be suppressed (treating all prerelease\nversions as if they were normal versions, for the purpose of range\nmatching) by setting the `includePrerelease` flag on the options\nobject to any\n[functions](https://github.com/npm/node-semver#functions) that do\nrange matching.\n\n#### Prerelease Identifiers\n\nThe method `.inc` takes an additional `identifier` string argument that\nwill append the value of the string as a prerelease identifier:\n\n```javascript\nsemver.inc('1.2.3', 'prerelease', 'beta')\n// '1.2.4-beta.0'\n```\n\ncommand-line example:\n\n```bash\n$ semver 1.2.3 -i prerelease --preid beta\n1.2.4-beta.0\n```\n\nWhich then can be used to increment further:\n\n```bash\n$ semver 1.2.4-beta.0 -i prerelease\n1.2.4-beta.1\n```\n\n### Advanced Range Syntax\n\nAdvanced range syntax desugars to primitive comparators in\ndeterministic ways.\n\nAdvanced ranges may be combined in the same way as primitive\ncomparators using white space or `||`.\n\n#### Hyphen Ranges `X.Y.Z - A.B.C`\n\nSpecifies an inclusive set.\n\n* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`\n\nIf a partial version is provided as the first version in the inclusive\nrange, then the missing pieces are replaced with zeroes.\n\n* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`\n\nIf a partial version is provided as the second version in the\ninclusive range, then all versions that start with the supplied parts\nof the tuple are accepted, but nothing that would be greater than the\nprovided tuple parts.\n\n* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`\n* `1.2.3 - 2` := `>=1.2.3 <3.0.0`\n\n#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`\n\nAny of `X`, `x`, or `*` may be used to \"stand in\" for one of the\nnumeric values in the `[major, minor, patch]` tuple.\n\n* `*` := `>=0.0.0` (Any version satisfies)\n* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)\n* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)\n\nA partial version range is treated as an X-Range, so the special\ncharacter is in fact optional.\n\n* `\"\"` (empty string) := `*` := `>=0.0.0`\n* `1` := `1.x.x` := `>=1.0.0 <2.0.0`\n* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`\n\n#### Tilde Ranges `~1.2.3` `~1.2` `~1`\n\nAllows patch-level changes if a minor version is specified on the\ncomparator. Allows minor-level changes if not.\n\n* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`\n* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)\n* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)\n* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`\n* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)\n* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)\n* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n\n#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`\n\nAllows changes that do not modify the left-most non-zero digit in the\n`[major, minor, patch]` tuple. In other words, this allows patch and\nminor updates for versions `1.0.0` and above, patch updates for\nversions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.\n\nMany authors treat a `0.x` version as if the `x` were the major\n\"breaking-change\" indicator.\n\nCaret ranges are ideal when an author may make breaking changes\nbetween `0.2.4` and `0.3.0` releases, which is a common practice.\nHowever, it presumes that there will *not* be breaking changes between\n`0.2.4` and `0.2.5`. It allows for changes that are presumed to be\nadditive (but non-breaking), according to commonly observed practices.\n\n* `^1.2.3` := `>=1.2.3 <2.0.0`\n* `^0.2.3` := `>=0.2.3 <0.3.0`\n* `^0.0.3` := `>=0.0.3 <0.0.4`\n* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in\n the `1.2.3` version will be allowed, if they are greater than or\n equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but\n `1.2.4-beta.2` would not, because it is a prerelease of a\n different `[major, minor, patch]` tuple.\n* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the\n `0.0.3` version *only* will be allowed, if they are greater than or\n equal to `beta`. So, `0.0.3-pr.2` would be allowed.\n\nWhen parsing caret ranges, a missing `patch` value desugars to the\nnumber `0`, but will allow flexibility within that value, even if the\nmajor and minor versions are both `0`.\n\n* `^1.2.x` := `>=1.2.0 <2.0.0`\n* `^0.0.x` := `>=0.0.0 <0.1.0`\n* `^0.0` := `>=0.0.0 <0.1.0`\n\nA missing `minor` and `patch` values will desugar to zero, but also\nallow flexibility within those values, even if the major version is\nzero.\n\n* `^1.x` := `>=1.0.0 <2.0.0`\n* `^0.x` := `>=0.0.0 <1.0.0`\n\n### Range Grammar\n\nPutting all this together, here is a Backus-Naur grammar for ranges,\nfor the benefit of parser authors:\n\n```bnf\nrange-set ::= range ( logical-or range ) *\nlogical-or ::= ( ' ' ) * '||' ( ' ' ) *\nrange ::= hyphen | simple ( ' ' simple ) * | ''\nhyphen ::= partial ' - ' partial\nsimple ::= primitive | partial | tilde | caret\nprimitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial\npartial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?\nxr ::= 'x' | 'X' | '*' | nr\nnr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *\ntilde ::= '~' partial\ncaret ::= '^' partial\nqualifier ::= ( '-' pre )? ( '+' build )?\npre ::= parts\nbuild ::= parts\nparts ::= part ( '.' part ) *\npart ::= nr | [-0-9A-Za-z]+\n```\n\n## Functions\n\nAll methods and classes take a final `options` object argument. All\noptions in this object are `false` by default. The options supported\nare:\n\n- `loose` Be more forgiving about not-quite-valid semver strings.\n (Any resulting output will always be 100% strict compliant, of\n course.) For backwards compatibility reasons, if the `options`\n argument is a boolean value instead of an object, it is interpreted\n to be the `loose` param.\n- `includePrerelease` Set to suppress the [default\n behavior](https://github.com/npm/node-semver#prerelease-tags) of\n excluding prerelease tagged versions from ranges unless they are\n explicitly opted into.\n\nStrict-mode Comparators and Ranges will be strict about the SemVer\nstrings that they parse.\n\n* `valid(v)`: Return the parsed version, or null if it's not valid.\n* `inc(v, release)`: Return the version incremented by the release\n type (`major`, `premajor`, `minor`, `preminor`, `patch`,\n `prepatch`, or `prerelease`), or null if it's not valid\n * `premajor` in one call will bump the version up to the next major\n version and down to a prerelease of that major version.\n `preminor`, and `prepatch` work the same way.\n * If called from a non-prerelease version, the `prerelease` will work the\n same as `prepatch`. It increments the patch version, then makes a\n prerelease. If the input version is already a prerelease it simply\n increments it.\n* `prerelease(v)`: Returns an array of prerelease components, or null\n if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`\n* `major(v)`: Return the major version number.\n* `minor(v)`: Return the minor version number.\n* `patch(v)`: Return the patch version number.\n* `intersects(r1, r2, loose)`: Return true if the two supplied ranges\n or comparators intersect.\n* `parse(v)`: Attempt to parse a string as a semantic version, returning either\n a `SemVer` object or `null`.\n\n### Comparison\n\n* `gt(v1, v2)`: `v1 > v2`\n* `gte(v1, v2)`: `v1 >= v2`\n* `lt(v1, v2)`: `v1 < v2`\n* `lte(v1, v2)`: `v1 <= v2`\n* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,\n even if they're not the exact same string. You already know how to\n compare strings.\n* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.\n* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call\n the corresponding function above. `\"===\"` and `\"!==\"` do simple\n string comparison, but are included for completeness. Throws if an\n invalid comparison string is provided.\n* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if\n `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.\n* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions\n in descending order when passed to `Array.sort()`.\n* `diff(v1, v2)`: Returns difference between two versions by the release type\n (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),\n or null if the versions are the same.\n\n### Comparators\n\n* `intersects(comparator)`: Return true if the comparators intersect\n\n### Ranges\n\n* `validRange(range)`: Return the valid range or null if it's not valid\n* `satisfies(version, range)`: Return true if the version satisfies the\n range.\n* `maxSatisfying(versions, range)`: Return the highest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minSatisfying(versions, range)`: Return the lowest version in the list\n that satisfies the range, or `null` if none of them do.\n* `minVersion(range)`: Return the lowest version that can possibly match\n the given range.\n* `gtr(version, range)`: Return `true` if version is greater than all the\n versions possible in the range.\n* `ltr(version, range)`: Return `true` if version is less than all the\n versions possible in the range.\n* `outside(version, range, hilo)`: Return true if the version is outside\n the bounds of the range in either the high or low direction. The\n `hilo` argument must be either the string `'>'` or `'<'`. (This is\n the function called by `gtr` and `ltr`.)\n* `intersects(range)`: Return true if any of the ranges comparators intersect\n\nNote that, since ranges may be non-contiguous, a version might not be\ngreater than a range, less than a range, *or* satisfy a range! For\nexample, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`\nuntil `2.0.0`, so the version `1.2.10` would not be greater than the\nrange (because `2.0.1` satisfies, which is higher), nor less than the\nrange (since `1.2.8` satisfies, which is lower), and it also does not\nsatisfy the range.\n\nIf you want to know if a version satisfies or does not satisfy a\nrange, use the `satisfies(version, range)` function.\n\n### Coercion\n\n* `coerce(version)`: Coerces a string to semver if possible\n\nThis aims to provide a very forgiving translation of a non-semver\nstring to semver. It looks for the first digit in a string, and\nconsumes all remaining characters which satisfy at least a partial semver\n(e.g., `1`, `1.2`, `1.2.3`) up to the max permitted length (256 characters).\nLonger versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).\nAll surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes `3.4.0`).\nOnly text which lacks digits will fail coercion (`version one` is not valid).\nThe maximum length for any semver component considered for coercion is 16 characters;\nlonger components will be ignored (`10000000000000000.4.7.4` becomes `4.7.4`).\nThe maximum value for any semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`;\nhigher value components are invalid (`9999999999999999.4.7.4` is likely invalid).\n# micromatch [](https://www.npmjs.com/package/micromatch) [](https://npmjs.org/package/micromatch) [](https://npmjs.org/package/micromatch) [](https://travis-ci.org/micromatch/micromatch) [](https://ci.appveyor.com/project/micromatch/micromatch)\n\n> Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Table of Contents\n\n<details>\n<summary><strong>Details</strong></summary>\n\n- [Install](#install)\n- [Quickstart](#quickstart)\n- [Why use micromatch?](#why-use-micromatch)\n * [Matching features](#matching-features)\n- [Switching to micromatch](#switching-to-micromatch)\n * [From minimatch](#from-minimatch)\n * [From multimatch](#from-multimatch)\n- [API](#api)\n- [Options](#options)\n * [options.basename](#optionsbasename)\n * [options.bash](#optionsbash)\n * [options.cache](#optionscache)\n * [options.dot](#optionsdot)\n * [options.failglob](#optionsfailglob)\n * [options.ignore](#optionsignore)\n * [options.matchBase](#optionsmatchbase)\n * [options.nobrace](#optionsnobrace)\n * [options.nocase](#optionsnocase)\n * [options.nodupes](#optionsnodupes)\n * [options.noext](#optionsnoext)\n * [options.nonegate](#optionsnonegate)\n * [options.noglobstar](#optionsnoglobstar)\n * [options.nonull](#optionsnonull)\n * [options.nullglob](#optionsnullglob)\n * [options.snapdragon](#optionssnapdragon)\n * [options.sourcemap](#optionssourcemap)\n * [options.unescape](#optionsunescape)\n * [options.unixify](#optionsunixify)\n- [Extended globbing](#extended-globbing)\n * [extglobs](#extglobs)\n * [braces](#braces)\n * [regex character classes](#regex-character-classes)\n * [regex groups](#regex-groups)\n * [POSIX bracket expressions](#posix-bracket-expressions)\n- [Notes](#notes)\n * [Bash 4.3 parity](#bash-43-parity)\n * [Backslashes](#backslashes)\n- [Contributing](#contributing)\n- [Benchmarks](#benchmarks)\n * [Running benchmarks](#running-benchmarks)\n * [Latest results](#latest-results)\n- [About](#about)\n\n</details>\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save micromatch\n```\n\n## Quickstart\n\n```js\nvar mm = require('micromatch');\nmm(list, patterns[, options]);\n```\n\nThe [main export](#micromatch) takes a list of strings and one or more glob patterns:\n\n```js\nconsole.log(mm(['foo', 'bar', 'qux'], ['f*', 'b*'])); \n//=> ['foo', 'bar']\n```\n\nUse [.isMatch()](#ismatch) to get true/false:\n\n```js\nconsole.log(mm.isMatch('foo', 'f*')); \n//=> true\n```\n\n[Switching](#switching-to-micromatch) from minimatch and multimatch is easy!\n\n## Why use micromatch?\n\n> micromatch is a [drop-in replacement](#switching-to-micromatch) for minimatch and multimatch\n\n* Supports all of the same matching features as [minimatch](https://github.com/isaacs/minimatch) and [multimatch](https://github.com/sindresorhus/multimatch)\n* Micromatch uses [snapdragon](https://github.com/jonschlinkert/snapdragon) for parsing and compiling globs, which provides granular control over the entire conversion process in a way that is easy to understand, reason about, and maintain.\n* More consistently accurate matching [than minimatch](https://github.com/yarnpkg/yarn/pull/3339), with more than 36,000 [test assertions](./test) to prove it.\n* More complete support for the Bash 4.3 specification than minimatch and multimatch. In fact, micromatch passes _all of the spec tests_ from bash, including some that bash still fails.\n* [Faster matching](#benchmarks), from a combination of optimized glob patterns, faster algorithms, and regex caching.\n* [Micromatch is safer](https://github.com/micromatch/braces#braces-is-safe), and is not subject to DoS with brace patterns, like minimatch and multimatch.\n* More reliable windows support than minimatch and multimatch.\n\n### Matching features\n\n* Support for multiple glob patterns (no need for wrappers like multimatch)\n* Wildcards (`**`, `*.js`)\n* Negation (`'!a/*.js'`, `'*!(b).js']`)\n* [extglobs](https://github.com/micromatch/extglob) (`+(x|y)`, `!(a|b)`)\n* [POSIX character classes](https://github.com/micromatch/expand-brackets) (`[[:alpha:][:digit:]]`)\n* [brace expansion](https://github.com/micromatch/braces) (`foo/{1..5}.md`, `bar/{a,b,c}.js`)\n* regex character classes (`foo-[1-5].js`)\n* regex logical \"or\" (`foo/(abc|xyz).js`)\n\nYou can mix and match these features to create whatever patterns you need!\n\n## Switching to micromatch\n\nThere is one notable difference between micromatch and minimatch in regards to how backslashes are handled. See [the notes about backslashes](#backslashes) for more information.\n\n### From minimatch\n\nUse [mm.isMatch()](#ismatch) instead of `minimatch()`:\n\n```js\nmm.isMatch('foo', 'b*');\n//=> false\n```\n\nUse [mm.match()](#match) instead of `minimatch.match()`:\n\n```js\nmm.match(['foo', 'bar'], 'b*');\n//=> 'bar'\n```\n\n### From multimatch\n\nSame signature:\n\n```js\nmm(['foo', 'bar', 'baz'], ['f*', '*z']);\n//=> ['foo', 'baz']\n```\n\n## API\n\n### [micromatch](index.js#L41)\n\nThe main function takes a list of strings and one or more glob patterns to use for matching.\n\n**Params**\n\n* `list` **{Array}**: A list of strings to match\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of matches\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm(list, patterns[, options]);\n\nconsole.log(mm(['a.js', 'a.txt'], ['*.js']));\n//=> [ 'a.js' ]\n```\n\n### [.match](index.js#L93)\n\nSimilar to the main function, but `pattern` must be a string.\n\n**Params**\n\n* `list` **{Array}**: Array of strings to match\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of matches\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.match(list, pattern[, options]);\n\nconsole.log(mm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));\n//=> ['a.a', 'a.aa']\n```\n\n### [.isMatch](index.js#L154)\n\nReturns true if the specified `string` matches the given glob `pattern`.\n\n**Params**\n\n* `string` **{String}**: String to match\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if the string matches the glob pattern.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.isMatch(string, pattern[, options]);\n\nconsole.log(mm.isMatch('a.a', '*.a'));\n//=> true\nconsole.log(mm.isMatch('a.b', '*.a'));\n//=> false\n```\n\n### [.some](index.js#L192)\n\nReturns true if some of the strings in the given `list` match any of the given glob `patterns`.\n\n**Params**\n\n* `list` **{String|Array}**: The string or array of strings to test. Returns as soon as the first match is found.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.some(list, patterns[, options]);\n\nconsole.log(mm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));\n// true\nconsole.log(mm.some(['foo.js'], ['*.js', '!foo.js']));\n// false\n```\n\n### [.every](index.js#L228)\n\nReturns true if every string in the given `list` matches any of the given glob `patterns`.\n\n**Params**\n\n* `list` **{String|Array}**: The string or array of strings to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.every(list, patterns[, options]);\n\nconsole.log(mm.every('foo.js', ['foo.js']));\n// true\nconsole.log(mm.every(['foo.js', 'bar.js'], ['*.js']));\n// true\nconsole.log(mm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));\n// false\nconsole.log(mm.every(['foo.js'], ['*.js', '!foo.js']));\n// false\n```\n\n### [.any](index.js#L260)\n\nReturns true if **any** of the given glob `patterns` match the specified `string`.\n\n**Params**\n\n* `str` **{String|Array}**: The string to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.any(string, patterns[, options]);\n\nconsole.log(mm.any('a.a', ['b.*', '*.a']));\n//=> true\nconsole.log(mm.any('a.a', 'b.*'));\n//=> false\n```\n\n### [.all](index.js#L308)\n\nReturns true if **all** of the given `patterns` match the specified string.\n\n**Params**\n\n* `str` **{String|Array}**: The string to test.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if any patterns match `str`\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.all(string, patterns[, options]);\n\nconsole.log(mm.all('foo.js', ['foo.js']));\n// true\n\nconsole.log(mm.all('foo.js', ['*.js', '!foo.js']));\n// false\n\nconsole.log(mm.all('foo.js', ['*.js', 'foo.js']));\n// true\n\nconsole.log(mm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));\n// true\n```\n\n### [.not](index.js#L340)\n\nReturns a list of strings that _**do not match any**_ of the given `patterns`.\n\n**Params**\n\n* `list` **{Array}**: Array of strings to match.\n* `patterns` **{String|Array}**: One or more glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Array}**: Returns an array of strings that **do not match** the given patterns.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.not(list, patterns[, options]);\n\nconsole.log(mm.not(['a.a', 'b.b', 'c.c'], '*.a'));\n//=> ['b.b', 'c.c']\n```\n\n### [.contains](index.js#L376)\n\nReturns true if the given `string` contains the given pattern. Similar to [.isMatch](#isMatch) but the pattern can match any part of the string.\n\n**Params**\n\n* `str` **{String}**: The string to match.\n* `patterns` **{String|Array}**: Glob pattern to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns true if the patter matches any part of `str`.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.contains(string, pattern[, options]);\n\nconsole.log(mm.contains('aa/bb/cc', '*b'));\n//=> true\nconsole.log(mm.contains('aa/bb/cc', '*d'));\n//=> false\n```\n\n### [.matchKeys](index.js#L432)\n\nFilter the keys of the given object with the given `glob` pattern and `options`. Does not attempt to match nested keys. If you need this feature, use [glob-object](https://github.com/jonschlinkert/glob-object) instead.\n\n**Params**\n\n* `object` **{Object}**: The object with keys to filter.\n* `patterns` **{String|Array}**: One or more glob patterns to use for matching.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Object}**: Returns an object with only keys that match the given patterns.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.matchKeys(object, patterns[, options]);\n\nvar obj = { aa: 'a', ab: 'b', ac: 'c' };\nconsole.log(mm.matchKeys(obj, '*b'));\n//=> { ab: 'b' }\n```\n\n### [.matcher](index.js#L461)\n\nReturns a memoized matcher function from the given glob `pattern` and `options`. The returned function takes a string to match as its only argument and returns true if the string is a match.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed.\n* `returns` **{Function}**: Returns a matcher function.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.matcher(pattern[, options]);\n\nvar isMatch = mm.matcher('*.!(*a)');\nconsole.log(isMatch('a.a'));\n//=> false\nconsole.log(isMatch('a.b'));\n//=> true\n```\n\n### [.capture](index.js#L536)\n\nReturns an array of matches captured by `pattern` in `string, or`null` if the pattern did not match.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `string` **{String}**: String to match\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns an array of captures if the string matches the glob pattern, otherwise `null`.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.capture(pattern, string[, options]);\n\nconsole.log(mm.capture('test/*.js', 'test/foo.js'));\n//=> ['foo']\nconsole.log(mm.capture('test/*.js', 'foo/bar.css'));\n//=> null\n```\n\n### [.makeRe](index.js#L571)\n\nCreate a regular expression from the given glob `pattern`.\n\n**Params**\n\n* `pattern` **{String}**: A glob pattern to convert to regex.\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed.\n* `returns` **{RegExp}**: Returns a regex created from the given pattern.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.makeRe(pattern[, options]);\n\nconsole.log(mm.makeRe('*.js'));\n//=> /^(?:(\\.[\\\\\\/])?(?!\\.)(?=.)[^\\/]*?\\.js)$/\n```\n\n### [.braces](index.js#L618)\n\nExpand the given brace `pattern`.\n\n**Params**\n\n* `pattern` **{String}**: String with brace pattern to expand.\n* `options` **{Object}**: Any [options](#options) to change how expansion is performed. See the [braces](https://github.com/micromatch/braces) library for all available options.\n* `returns` **{Array}**\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nconsole.log(mm.braces('foo/{a,b}/bar'));\n//=> ['foo/(a|b)/bar']\n\nconsole.log(mm.braces('foo/{a,b}/bar', {expand: true}));\n//=> ['foo/(a|b)/bar']\n```\n\n### [.create](index.js#L685)\n\nParses the given glob `pattern` and returns an array of abstract syntax trees (ASTs), with the compiled `output` and optional source `map` on each AST.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern to parse and compile.\n* `options` **{Object}**: Any [options](#options) to change how parsing and compiling is performed.\n* `returns` **{Object}**: Returns an object with the parsed AST, compiled string and optional source map.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.create(pattern[, options]);\n\nconsole.log(mm.create('abc/*.js'));\n// [{ options: { source: 'string', sourcemap: true },\n// state: {},\n// compilers:\n// { ... },\n// output: '(\\\\.[\\\\\\\\\\\\/])?abc\\\\/(?!\\\\.)(?=.)[^\\\\/]*?\\\\.js',\n// ast:\n// { type: 'root',\n// errors: [],\n// nodes:\n// [ ... ],\n// dot: false,\n// input: 'abc/*.js' },\n// parsingErrors: [],\n// map:\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/*.js' ] },\n// position: { line: 1, column: 28 },\n// content: {},\n// files: {},\n// idx: 6 }]\n```\n\n### [.parse](index.js#L732)\n\nParse the given `str` with the given `options`.\n\n**Params**\n\n* `str` **{String}**\n* `options` **{Object}**\n* `returns` **{Object}**: Returns an AST\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.parse(pattern[, options]);\n\nvar ast = mm.parse('a/{b,c}/d');\nconsole.log(ast);\n// { type: 'root',\n// errors: [],\n// input: 'a/{b,c}/d',\n// nodes:\n// [ { type: 'bos', val: '' },\n// { type: 'text', val: 'a/' },\n// { type: 'brace',\n// nodes:\n// [ { type: 'brace.open', val: '{' },\n// { type: 'text', val: 'b,c' },\n// { type: 'brace.close', val: '}' } ] },\n// { type: 'text', val: '/d' },\n// { type: 'eos', val: '' } ] }\n```\n\n### [.compile](index.js#L780)\n\nCompile the given `ast` or string with the given `options`.\n\n**Params**\n\n* `ast` **{Object|String}**\n* `options` **{Object}**\n* `returns` **{Object}**: Returns an object that has an `output` property with the compiled string.\n\n**Example**\n\n```js\nvar mm = require('micromatch');\nmm.compile(ast[, options]);\n\nvar ast = mm.parse('a/{b,c}/d');\nconsole.log(mm.compile(ast));\n// { options: { source: 'string' },\n// state: {},\n// compilers:\n// { eos: [Function],\n// noop: [Function],\n// bos: [Function],\n// brace: [Function],\n// 'brace.open': [Function],\n// text: [Function],\n// 'brace.close': [Function] },\n// output: [ 'a/(b|c)/d' ],\n// ast:\n// { ... },\n// parsingErrors: [] }\n```\n\n### [.clearCache](index.js#L801)\n\nClear the regex cache.\n\n**Example**\n\n```js\nmm.clearCache();\n```\n\n## Options\n\n* [basename](#optionsbasename)\n* [bash](#optionsbash)\n* [cache](#optionscache)\n* [dot](#optionsdot)\n* [failglob](#optionsfailglob)\n* [ignore](#optionsignore)\n* [matchBase](#optionsmatchBase)\n* [nobrace](#optionsnobrace)\n* [nocase](#optionsnocase)\n* [nodupes](#optionsnodupes)\n* [noext](#optionsnoext)\n* [noglobstar](#optionsnoglobstar)\n* [nonull](#optionsnonull)\n* [nullglob](#optionsnullglob)\n* [snapdragon](#optionssnapdragon)\n* [sourcemap](#optionssourcemap)\n* [unescape](#optionsunescape)\n* [unixify](#optionsunixify)\n\n### options.basename\n\nAllow glob patterns without slashes to match a file path based on its basename. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `matchBase`.\n\n**Type**: `Boolean`\n\n**Default**: `false`\n\n**Example**\n\n```js\nmm(['a/b.js', 'a/c.md'], '*.js');\n//=> []\n\nmm(['a/b.js', 'a/c.md'], '*.js', {matchBase: true});\n//=> ['a/b.js']\n```\n\n### options.bash\n\nEnabled by default, this option enforces bash-like behavior with stars immediately following a bracket expression. Bash bracket expressions are similar to regex character classes, but unlike regex, a star following a bracket expression **does not repeat the bracketed characters**. Instead, the star is treated the same as an other star.\n\n**Type**: `Boolean`\n\n**Default**: `true`\n\n**Example**\n\n```js\nvar files = ['abc', 'ajz'];\nconsole.log(mm(files, '[a-c]*'));\n//=> ['abc', 'ajz']\n\nconsole.log(mm(files, '[a-c]*', {bash: false}));\n```\n\n### options.cache\n\nDisable regex and function memoization.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n### options.dot\n\nMatch dotfiles. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `dot`.\n\n**Type**: `Boolean`\n\n**Default**: `false`\n\n### options.failglob\n\nSimilar to the `--failglob` behavior in Bash, throws an error when no matches are found.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n### options.ignore\n\nString or array of glob patterns to match files to ignore.\n\n**Type**: `String|Array`\n\n**Default**: `undefined`\n\n### options.matchBase\n\nAlias for [options.basename](#options-basename).\n\n### options.nobrace\n\nDisable expansion of brace patterns. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `nobrace`.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\nSee [braces](https://github.com/micromatch/braces) for more information about extended brace expansion.\n\n### options.nocase\n\nUse a case-insensitive regex for matching files. Same behavior as [minimatch](https://github.com/isaacs/minimatch).\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n### options.nodupes\n\nRemove duplicate elements from the result array.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Example**\n\nExample of using the `unescape` and `nodupes` options together:\n\n```js\nmm.match(['a/b/c', 'a/b/c'], 'a/b/c');\n//=> ['a/b/c', 'a/b/c']\n\nmm.match(['a/b/c', 'a/b/c'], 'a/b/c', {nodupes: true});\n//=> ['abc']\n```\n\n### options.noext\n\nDisable extglob support, so that extglobs are regarded as literal characters.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Examples**\n\n```js\nmm(['a/z', 'a/b', 'a/!(z)'], 'a/!(z)');\n//=> ['a/b', 'a/!(z)']\n\nmm(['a/z', 'a/b', 'a/!(z)'], 'a/!(z)', {noext: true});\n//=> ['a/!(z)'] (matches only as literal characters)\n```\n\n### options.nonegate\n\nDisallow negation (`!`) patterns, and treat leading `!` as a literal character to match.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n### options.noglobstar\n\nDisable matching with globstars (`**`).\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n```js\nmm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**');\n//=> ['a/b', 'a/b/c', 'a/b/c/d']\n\nmm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**', {noglobstar: true});\n//=> ['a/b']\n```\n\n### options.nonull\n\nAlias for [options.nullglob](#options-nullglob).\n\n### options.nullglob\n\nIf `true`, when no matches are found the actual (arrayified) glob pattern is returned instead of an empty array. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `nonull`.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n### options.snapdragon\n\nPass your own instance of [snapdragon](https://github.com/jonschlinkert/snapdragon), to customize parsers or compilers.\n\n**Type**: `Object`\n\n**Default**: `undefined`\n\n### options.sourcemap\n\nGenerate a source map by enabling the `sourcemap` option with the `.parse`, `.compile`, or `.create` methods.\n\n_(Note that sourcemaps are currently not enabled for brace patterns)_\n\n**Examples**\n\n``` js\nvar mm = require('micromatch');\nvar pattern = '*(*(of*(a)x)z)';\n\nvar res = mm.create('abc/*.js', {sourcemap: true});\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,iBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/*.js' ] }\n\nvar ast = mm.parse('abc/**/*.js');\nvar res = mm.compile(ast, {sourcemap: true});\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,GAAG,EAAC,2BAAE,EAAC,iBAAC,EAAC,EAAE',\n// sourcesContent: [ 'abc/**/*.js' ] }\n\nvar ast = mm.parse(pattern);\nvar res = mm.compile(ast, {sourcemap: true});\nconsole.log(res.map);\n// { version: 3,\n// sources: [ 'string' ],\n// names: [],\n// mappings: 'AAAA,CAAE,CAAE,EAAE,CAAE,CAAC,EAAC,CAAC,EAAC,CAAC,EAAC',\n// sourcesContent: [ '*(*(of*(a)x)z)' ] }\n```\n\n### options.unescape\n\nRemove backslashes from returned matches.\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\n**Example**\n\nIn this example we want to match a literal `*`:\n\n```js\nmm.match(['abc', 'a\\\\*c'], 'a\\\\*c');\n//=> ['a\\\\*c']\n\nmm.match(['abc', 'a\\\\*c'], 'a\\\\*c', {unescape: true});\n//=> ['a*c']\n```\n\n### options.unixify\n\nConvert path separators on returned files to posix/unix-style forward slashes.\n\n**Type**: `Boolean`\n\n**Default**: `true` on windows, `false` everywhere else\n\n**Example**\n\n```js\nmm.match(['a\\\\b\\\\c'], 'a/**');\n//=> ['a/b/c']\n\nmm.match(['a\\\\b\\\\c'], {unixify: false});\n//=> ['a\\\\b\\\\c']\n```\n\n## Extended globbing\n\nMicromatch also supports extended globbing features.\n\n### extglobs\n\nExtended globbing, as described by the bash man page:\n\n| **pattern** | **regex equivalent** | **description** | \n| --- | --- | --- |\n| `?(pattern)` | `(pattern)?` | Matches zero or one occurrence of the given patterns |\n| `*(pattern)` | `(pattern)*` | Matches zero or more occurrences of the given patterns |\n| `+(pattern)` | `(pattern)+` | Matches one or more occurrences of the given patterns |\n| `@(pattern)` | `(pattern)` <sup>*</sup> | Matches one of the given patterns |\n| `!(pattern)` | N/A (equivalent regex is much more complicated) | Matches anything except one of the given patterns |\n\n<sup><strong>*</strong></sup> Note that `@` isn't a RegEx character.\n\nPowered by [extglob](https://github.com/micromatch/extglob). Visit that library for the full range of options or to report extglob related issues.\n\n### braces\n\nBrace patterns can be used to match specific ranges or sets of characters. For example, the pattern `*/{1..3}/*` would match any of following strings:\n\n```\nfoo/1/bar\nfoo/2/bar\nfoo/3/bar\nbaz/1/qux\nbaz/2/qux\nbaz/3/qux\n```\n\nVisit [braces](https://github.com/micromatch/braces) to see the full range of features and options related to brace expansion, or to create brace matching or expansion related issues.\n\n### regex character classes\n\nGiven the list: `['a.js', 'b.js', 'c.js', 'd.js', 'E.js']`:\n\n* `[ac].js`: matches both `a` and `c`, returning `['a.js', 'c.js']`\n* `[b-d].js`: matches from `b` to `d`, returning `['b.js', 'c.js', 'd.js']`\n* `[b-d].js`: matches from `b` to `d`, returning `['b.js', 'c.js', 'd.js']`\n* `a/[A-Z].js`: matches and uppercase letter, returning `['a/E.md']`\n\nLearn about [regex character classes](http://www.regular-expressions.info/charclass.html).\n\n### regex groups\n\nGiven `['a.js', 'b.js', 'c.js', 'd.js', 'E.js']`:\n\n* `(a|c).js`: would match either `a` or `c`, returning `['a.js', 'c.js']`\n* `(b|d).js`: would match either `b` or `d`, returning `['b.js', 'd.js']`\n* `(b|[A-Z]).js`: would match either `b` or an uppercase letter, returning `['b.js', 'E.js']`\n\nAs with regex, parens can be nested, so patterns like `((a|b)|c)/b` will work. Although brace expansion might be friendlier to use, depending on preference.\n\n### POSIX bracket expressions\n\nPOSIX brackets are intended to be more user-friendly than regex character classes. This of course is in the eye of the beholder.\n\n**Example**\n\n```js\nmm.isMatch('a1', '[[:alpha:][:digit:]]');\n//=> true\n\nmm.isMatch('a1', '[[:alpha:][:alpha:]]');\n//=> false\n```\n\nSee [expand-brackets](https://github.com/jonschlinkert/expand-brackets) for more information about bracket expressions.\n\n***\n\n## Notes\n\n### Bash 4.3 parity\n\nWhenever possible matching behavior is based on behavior Bash 4.3, which is mostly consistent with minimatch.\n\nHowever, it's suprising how many edge cases and rabbit holes there are with glob matching, and since there is no real glob specification, and micromatch is more accurate than both Bash and minimatch, there are cases where best-guesses were made for behavior. In a few cases where Bash had no answers, we used wildmatch (used by git) as a fallback.\n\n### Backslashes\n\nThere is an important, notable difference between minimatch and micromatch _in regards to how backslashes are handled_ in glob patterns.\n\n* Micromatch exclusively and explicitly reserves backslashes for escaping characters in a glob pattern, even on windows. This is consistent with bash behavior.\n* Minimatch converts all backslashes to forward slashes, which means you can't use backslashes to escape any characters in your glob patterns.\n\nWe made this decision for micromatch for a couple of reasons:\n\n* consistency with bash conventions.\n* glob patterns are not filepaths. They are a type of [regular language](https://en.wikipedia.org/wiki/Regular_language) that is converted to a JavaScript regular expression. Thus, when forward slashes are defined in a glob pattern, the resulting regular expression will match windows or POSIX path separators just fine.\n\n**A note about joining paths to globs**\n\nNote that when you pass something like `path.join('foo', '*')` to micromatch, you are creating a filepath and expecting it to still work as a glob pattern. This causes problems on windows, since the `path.sep` is `\\\\`.\n\nIn other words, since `\\\\` is reserved as an escape character in globs, on windows `path.join('foo', '*')` would result in `foo\\\\*`, which tells micromatch to match `*` as a literal character. This is the same behavior as bash.\n\n## Contributing\n\nAll contributions are welcome! Please read [the contributing guide](.github/contributing.md) to get started.\n\n**Bug reports**\n\nPlease create an issue if you encounter a bug or matching behavior that doesn't seem correct. If you find a matching-related issue, please:\n\n* [research existing issues first](../../issues) (open and closed)\n* visit the [GNU Bash documentation](https://www.gnu.org/software/bash/manual/) to see how Bash deals with the pattern\n* visit the [minimatch](https://github.com/isaacs/minimatch) documentation to cross-check expected behavior in node.js\n* if all else fails, since there is no real specification for globs we will probably need to discuss expected behavior and decide how to resolve it. which means any detail you can provide to help with this discussion would be greatly appreciated.\n\n**Platform issues**\n\nIt's important to us that micromatch work consistently on all platforms. If you encounter any platform-specific matching or path related issues, please let us know (pull requests are also greatly appreciated).\n\n## Benchmarks\n\n### Running benchmarks\n\nInstall dev dependencies:\n\n```bash\nnpm i -d && npm run benchmark\n```\n\n### Latest results\n\nAs of February 18, 2018 (longer bars are better):\n\n```sh\n# braces-globstar-large-list (485691 bytes)\n micromatch ██████████████████████████████████████████████████ (517 ops/sec ±0.49%)\n minimatch █ (18.92 ops/sec ±0.54%)\n multimatch █ (18.94 ops/sec ±0.62%)\n\n micromatch is faster by an avg. of 2,733%\n\n# braces-multiple (3362 bytes)\n micromatch ██████████████████████████████████████████████████ (33,625 ops/sec ±0.45%)\n minimatch (2.92 ops/sec ±3.26%)\n multimatch (2.90 ops/sec ±2.76%)\n\n micromatch is faster by an avg. of 1,156,935%\n\n# braces-range (727 bytes)\n micromatch █████████████████████████████████████████████████ (155,220 ops/sec ±0.56%)\n minimatch ██████ (20,186 ops/sec ±1.27%)\n multimatch ██████ (19,809 ops/sec ±0.60%)\n\n micromatch is faster by an avg. of 776%\n\n# braces-set (2858 bytes)\n micromatch █████████████████████████████████████████████████ (24,354 ops/sec ±0.92%)\n minimatch █████ (2,566 ops/sec ±0.56%)\n multimatch ████ (2,431 ops/sec ±1.25%)\n\n micromatch is faster by an avg. of 975%\n\n# globstar-large-list (485686 bytes)\n micromatch █████████████████████████████████████████████████ (504 ops/sec ±0.45%)\n minimatch ███ (33.36 ops/sec ±1.08%)\n multimatch ███ (33.19 ops/sec ±1.35%)\n\n micromatch is faster by an avg. of 1,514%\n\n# globstar-long-list (90647 bytes)\n micromatch ██████████████████████████████████████████████████ (2,694 ops/sec ±1.08%)\n minimatch ████████████████ (870 ops/sec ±1.09%)\n multimatch ████████████████ (862 ops/sec ±0.84%)\n\n micromatch is faster by an avg. of 311%\n\n# globstar-short-list (182 bytes)\n micromatch ██████████████████████████████████████████████████ (328,921 ops/sec ±1.06%)\n minimatch █████████ (64,808 ops/sec ±1.42%)\n multimatch ████████ (57,991 ops/sec ±2.11%)\n\n micromatch is faster by an avg. of 536%\n\n# no-glob (701 bytes)\n micromatch █████████████████████████████████████████████████ (415,935 ops/sec ±0.36%)\n minimatch ███████████ (92,730 ops/sec ±1.44%)\n multimatch █████████ (81,958 ops/sec ±2.13%)\n\n micromatch is faster by an avg. of 476%\n\n# star-basename-long (12339 bytes)\n micromatch █████████████████████████████████████████████████ (7,963 ops/sec ±0.36%)\n minimatch ███████████████████████████████ (5,072 ops/sec ±0.83%)\n multimatch ███████████████████████████████ (5,028 ops/sec ±0.40%)\n\n micromatch is faster by an avg. of 158%\n\n# star-basename-short (349 bytes)\n micromatch ██████████████████████████████████████████████████ (269,552 ops/sec ±0.70%)\n minimatch ██████████████████████ (122,457 ops/sec ±1.39%)\n multimatch ████████████████████ (110,788 ops/sec ±1.99%)\n\n micromatch is faster by an avg. of 231%\n\n# star-folder-long (19207 bytes)\n micromatch █████████████████████████████████████████████████ (3,806 ops/sec ±0.38%)\n minimatch ████████████████████████████ (2,204 ops/sec ±0.32%)\n multimatch ██████████████████████████ (2,020 ops/sec ±1.07%)\n\n micromatch is faster by an avg. of 180%\n\n# star-folder-short (551 bytes)\n micromatch ██████████████████████████████████████████████████ (249,077 ops/sec ±0.40%)\n minimatch ███████████ (59,431 ops/sec ±1.67%)\n multimatch ███████████ (55,569 ops/sec ±1.43%)\n\n micromatch is faster by an avg. of 433%\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [braces](https://www.npmjs.com/package/braces): Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support… [more](https://github.com/micromatch/braces) | [homepage](https://github.com/micromatch/braces \"Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.\")\n* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets \"Expand POSIX bracket expressions (character classes) in glob patterns.\")\n* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/micromatch/extglob) | [homepage](https://github.com/micromatch/extglob \"Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.\")\n* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range \"Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\")\n* [nanomatch](https://www.npmjs.com/package/nanomatch): Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash… [more](https://github.com/micromatch/nanomatch) | [homepage](https://github.com/micromatch/nanomatch \"Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 457 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 12 | [es128](https://github.com/es128) |\n| 8 | [doowb](https://github.com/doowb) |\n| 3 | [paulmillr](https://github.com/paulmillr) |\n| 2 | [TrySound](https://github.com/TrySound) |\n| 2 | [MartinKolarik](https://github.com/MartinKolarik) |\n| 2 | [charlike-old](https://github.com/charlike-old) |\n| 1 | [amilajack](https://github.com/amilajack) |\n| 1 | [mrmlnc](https://github.com/mrmlnc) |\n| 1 | [devongovett](https://github.com/devongovett) |\n| 1 | [DianeLooney](https://github.com/DianeLooney) |\n| 1 | [UltCombo](https://github.com/UltCombo) |\n| 1 | [tomByrer](https://github.com/tomByrer) |\n| 1 | [fidian](https://github.com/fidian) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 18, 2018._\n# is-plain-object [](https://www.npmjs.com/package/is-plain-object) [](https://npmjs.org/package/is-plain-object) [](https://npmjs.org/package/is-plain-object) [](https://travis-ci.org/jonschlinkert/is-plain-object)\n\n> Returns true if an object was created by the `Object` constructor.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-plain-object\n```\n\nUse [isobject](https://github.com/jonschlinkert/isobject) if you only want to check if the value is an object and not an array or null.\n\n## Usage\n\n```js\nvar isPlainObject = require('is-plain-object');\n```\n\n**true** when created by the `Object` constructor.\n\n```js\nisPlainObject(Object.create({}));\n//=> true\nisPlainObject(Object.create(Object.prototype));\n//=> true\nisPlainObject({foo: 'bar'});\n//=> true\nisPlainObject({});\n//=> true\n```\n\n**false** when not created by the `Object` constructor.\n\n```js\nisPlainObject(1);\n//=> false\nisPlainObject(['foo', 'bar']);\n//=> false\nisPlainObject([]);\n//=> false\nisPlainObject(new Foo);\n//=> false\nisPlainObject(null);\n//=> false\nisPlainObject(Object.create(null));\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 17 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 6 | [stevenvachon](https://github.com/stevenvachon) |\n| 3 | [onokumus](https://github.com/onokumus) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 11, 2017._\n# fs.realpath\n\nA backwards-compatible fs.realpath for Node v6 and above\n\nIn Node v6, the JavaScript implementation of fs.realpath was replaced\nwith a faster (but less resilient) native implementation. That raises\nnew and platform-specific errors and cannot handle long or excessively\nsymlink-looping paths.\n\nThis module handles those cases by detecting the new errors and\nfalling back to the JavaScript implementation. On versions of Node\nprior to v6, it has no effect.\n\n## USAGE\n\n```js\nvar rp = require('fs.realpath')\n\n// async version\nrp.realpath(someLongAndLoopingPath, function (er, real) {\n // the ELOOP was handled, but it was a bit slower\n})\n\n// sync version\nvar real = rp.realpathSync(someLongAndLoopingPath)\n\n// monkeypatch at your own risk!\n// This replaces the fs.realpath/fs.realpathSync builtins\nrp.monkeypatch()\n\n// un-do the monkeypatching\nrp.unmonkeypatch()\n```\naws4\n----\n\n[](http://travis-ci.org/mhart/aws4)\n\nA small utility to sign vanilla node.js http(s) request options using Amazon's\n[AWS Signature Version 4](http://docs.amazonwebservices.com/general/latest/gr/signature-version-4.html).\n\nCan also be used [in the browser](./browser).\n\nThis signature is supported by nearly all Amazon services, including\n[S3](http://docs.aws.amazon.com/AmazonS3/latest/API/),\n[EC2](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/),\n[DynamoDB](http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/API.html),\n[Kinesis](http://docs.aws.amazon.com/kinesis/latest/APIReference/),\n[Lambda](http://docs.aws.amazon.com/lambda/latest/dg/API_Reference.html),\n[SQS](http://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/),\n[SNS](http://docs.aws.amazon.com/sns/latest/api/),\n[IAM](http://docs.aws.amazon.com/IAM/latest/APIReference/),\n[STS](http://docs.aws.amazon.com/STS/latest/APIReference/),\n[RDS](http://docs.aws.amazon.com/AmazonRDS/latest/APIReference/),\n[CloudWatch](http://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/),\n[CloudWatch Logs](http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/),\n[CodeDeploy](http://docs.aws.amazon.com/codedeploy/latest/APIReference/),\n[CloudFront](http://docs.aws.amazon.com/AmazonCloudFront/latest/APIReference/),\n[CloudTrail](http://docs.aws.amazon.com/awscloudtrail/latest/APIReference/),\n[ElastiCache](http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/),\n[EMR](http://docs.aws.amazon.com/ElasticMapReduce/latest/API/),\n[Glacier](http://docs.aws.amazon.com/amazonglacier/latest/dev/amazon-glacier-api.html),\n[CloudSearch](http://docs.aws.amazon.com/cloudsearch/latest/developerguide/APIReq.html),\n[Elastic Load Balancing](http://docs.aws.amazon.com/ElasticLoadBalancing/latest/APIReference/),\n[Elastic Transcoder](http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/api-reference.html),\n[CloudFormation](http://docs.aws.amazon.com/AWSCloudFormation/latest/APIReference/),\n[Elastic Beanstalk](http://docs.aws.amazon.com/elasticbeanstalk/latest/api/),\n[Storage Gateway](http://docs.aws.amazon.com/storagegateway/latest/userguide/AWSStorageGatewayAPI.html),\n[Data Pipeline](http://docs.aws.amazon.com/datapipeline/latest/APIReference/),\n[Direct Connect](http://docs.aws.amazon.com/directconnect/latest/APIReference/),\n[Redshift](http://docs.aws.amazon.com/redshift/latest/APIReference/),\n[OpsWorks](http://docs.aws.amazon.com/opsworks/latest/APIReference/),\n[SES](http://docs.aws.amazon.com/ses/latest/APIReference/),\n[SWF](http://docs.aws.amazon.com/amazonswf/latest/apireference/),\n[AutoScaling](http://docs.aws.amazon.com/AutoScaling/latest/APIReference/),\n[Mobile Analytics](http://docs.aws.amazon.com/mobileanalytics/latest/ug/server-reference.html),\n[Cognito Identity](http://docs.aws.amazon.com/cognitoidentity/latest/APIReference/),\n[Cognito Sync](http://docs.aws.amazon.com/cognitosync/latest/APIReference/),\n[Container Service](http://docs.aws.amazon.com/AmazonECS/latest/APIReference/),\n[AppStream](http://docs.aws.amazon.com/appstream/latest/developerguide/appstream-api-rest.html),\n[Key Management Service](http://docs.aws.amazon.com/kms/latest/APIReference/),\n[Config](http://docs.aws.amazon.com/config/latest/APIReference/),\n[CloudHSM](http://docs.aws.amazon.com/cloudhsm/latest/dg/api-ref.html),\n[Route53](http://docs.aws.amazon.com/Route53/latest/APIReference/requests-rest.html) and\n[Route53 Domains](http://docs.aws.amazon.com/Route53/latest/APIReference/requests-rpc.html).\n\nIndeed, the only AWS services that *don't* support v4 as of 2014-12-30 are\n[Import/Export](http://docs.aws.amazon.com/AWSImportExport/latest/DG/api-reference.html) and\n[SimpleDB](http://docs.aws.amazon.com/AmazonSimpleDB/latest/DeveloperGuide/SDB_API.html)\n(they only support [AWS Signature Version 2](https://github.com/mhart/aws2)).\n\nIt also provides defaults for a number of core AWS headers and\nrequest parameters, making it very easy to query AWS services, or\nbuild out a fully-featured AWS library.\n\nExample\n-------\n\n```javascript\nvar http = require('http'),\n https = require('https'),\n aws4 = require('aws4')\n\n// given an options object you could pass to http.request\nvar opts = {host: 'sqs.us-east-1.amazonaws.com', path: '/?Action=ListQueues'}\n\n// alternatively (as aws4 can infer the host):\nopts = {service: 'sqs', region: 'us-east-1', path: '/?Action=ListQueues'}\n\n// alternatively (as us-east-1 is default):\nopts = {service: 'sqs', path: '/?Action=ListQueues'}\n\naws4.sign(opts) // assumes AWS credentials are available in process.env\n\nconsole.log(opts)\n/*\n{\n host: 'sqs.us-east-1.amazonaws.com',\n path: '/?Action=ListQueues',\n headers: {\n Host: 'sqs.us-east-1.amazonaws.com',\n 'X-Amz-Date': '20121226T061030Z',\n Authorization: 'AWS4-HMAC-SHA256 Credential=ABCDEF/20121226/us-east-1/sqs/aws4_request, ...'\n }\n}\n*/\n\n// we can now use this to query AWS using the standard node.js http API\nhttp.request(opts, function(res) { res.pipe(process.stdout) }).end()\n/*\n<?xml version=\"1.0\"?>\n<ListQueuesResponse xmlns=\"http://queue.amazonaws.com/doc/2012-11-05/\">\n...\n*/\n```\n\nMore options\n------------\n\n```javascript\n// you can also pass AWS credentials in explicitly (otherwise taken from process.env)\naws4.sign(opts, {accessKeyId: '', secretAccessKey: ''})\n\n// can also add the signature to query strings\naws4.sign({service: 's3', path: '/my-bucket?X-Amz-Expires=12345', signQuery: true})\n\n// create a utility function to pipe to stdout (with https this time)\nfunction request(o) { https.request(o, function(res) { res.pipe(process.stdout) }).end(o.body || '') }\n\n// aws4 can infer the HTTP method if a body is passed in\n// method will be POST and Content-Type: 'application/x-www-form-urlencoded; charset=utf-8'\nrequest(aws4.sign({service: 'iam', body: 'Action=ListGroups&Version=2010-05-08'}))\n/*\n<ListGroupsResponse xmlns=\"https://iam.amazonaws.com/doc/2010-05-08/\">\n...\n*/\n\n// can specify any custom option or header as per usual\nrequest(aws4.sign({\n service: 'dynamodb',\n region: 'ap-southeast-2',\n method: 'POST',\n path: '/',\n headers: {\n 'Content-Type': 'application/x-amz-json-1.0',\n 'X-Amz-Target': 'DynamoDB_20120810.ListTables'\n },\n body: '{}'\n}))\n/*\n{\"TableNames\":[]}\n...\n*/\n\n// works with all other services that support Signature Version 4\n\nrequest(aws4.sign({service: 's3', path: '/', signQuery: true}))\n/*\n<ListAllMyBucketsResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'ec2', path: '/?Action=DescribeRegions&Version=2014-06-15'}))\n/*\n<DescribeRegionsResponse xmlns=\"http://ec2.amazonaws.com/doc/2014-06-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'sns', path: '/?Action=ListTopics&Version=2010-03-31'}))\n/*\n<ListTopicsResponse xmlns=\"http://sns.amazonaws.com/doc/2010-03-31/\">\n...\n*/\n\nrequest(aws4.sign({service: 'sts', path: '/?Action=GetSessionToken&Version=2011-06-15'}))\n/*\n<GetSessionTokenResponse xmlns=\"https://sts.amazonaws.com/doc/2011-06-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudsearch', path: '/?Action=ListDomainNames&Version=2013-01-01'}))\n/*\n<ListDomainNamesResponse xmlns=\"http://cloudsearch.amazonaws.com/doc/2013-01-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'ses', path: '/?Action=ListIdentities&Version=2010-12-01'}))\n/*\n<ListIdentitiesResponse xmlns=\"http://ses.amazonaws.com/doc/2010-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'autoscaling', path: '/?Action=DescribeAutoScalingInstances&Version=2011-01-01'}))\n/*\n<DescribeAutoScalingInstancesResponse xmlns=\"http://autoscaling.amazonaws.com/doc/2011-01-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticloadbalancing', path: '/?Action=DescribeLoadBalancers&Version=2012-06-01'}))\n/*\n<DescribeLoadBalancersResponse xmlns=\"http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudformation', path: '/?Action=ListStacks&Version=2010-05-15'}))\n/*\n<ListStacksResponse xmlns=\"http://cloudformation.amazonaws.com/doc/2010-05-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticbeanstalk', path: '/?Action=ListAvailableSolutionStacks&Version=2010-12-01'}))\n/*\n<ListAvailableSolutionStacksResponse xmlns=\"http://elasticbeanstalk.amazonaws.com/docs/2010-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'rds', path: '/?Action=DescribeDBInstances&Version=2012-09-17'}))\n/*\n<DescribeDBInstancesResponse xmlns=\"http://rds.amazonaws.com/doc/2012-09-17/\">\n...\n*/\n\nrequest(aws4.sign({service: 'monitoring', path: '/?Action=ListMetrics&Version=2010-08-01'}))\n/*\n<ListMetricsResponse xmlns=\"http://monitoring.amazonaws.com/doc/2010-08-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'redshift', path: '/?Action=DescribeClusters&Version=2012-12-01'}))\n/*\n<DescribeClustersResponse xmlns=\"http://redshift.amazonaws.com/doc/2012-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudfront', path: '/2014-05-31/distribution'}))\n/*\n<DistributionList xmlns=\"http://cloudfront.amazonaws.com/doc/2014-05-31/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticache', path: '/?Action=DescribeCacheClusters&Version=2014-07-15'}))\n/*\n<DescribeCacheClustersResponse xmlns=\"http://elasticache.amazonaws.com/doc/2014-07-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticmapreduce', path: '/?Action=DescribeJobFlows&Version=2009-03-31'}))\n/*\n<DescribeJobFlowsResponse xmlns=\"http://elasticmapreduce.amazonaws.com/doc/2009-03-31\">\n...\n*/\n\nrequest(aws4.sign({service: 'route53', path: '/2013-04-01/hostedzone'}))\n/*\n<ListHostedZonesResponse xmlns=\"https://route53.amazonaws.com/doc/2013-04-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'appstream', path: '/applications'}))\n/*\n{\"_links\":{\"curie\":[{\"href\":\"http://docs.aws.amazon.com/appstream/latest/...\n...\n*/\n\nrequest(aws4.sign({service: 'cognito-sync', path: '/identitypools'}))\n/*\n{\"Count\":0,\"IdentityPoolUsages\":[],\"MaxResults\":16,\"NextToken\":null}\n...\n*/\n\nrequest(aws4.sign({service: 'elastictranscoder', path: '/2012-09-25/pipelines'}))\n/*\n{\"NextPageToken\":null,\"Pipelines\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'lambda', path: '/2014-11-13/functions/'}))\n/*\n{\"Functions\":[],\"NextMarker\":null}\n...\n*/\n\nrequest(aws4.sign({service: 'ecs', path: '/?Action=ListClusters&Version=2014-11-13'}))\n/*\n<ListClustersResponse xmlns=\"http://ecs.amazonaws.com/doc/2014-11-13/\">\n...\n*/\n\nrequest(aws4.sign({service: 'glacier', path: '/-/vaults', headers: {'X-Amz-Glacier-Version': '2012-06-01'}}))\n/*\n{\"Marker\":null,\"VaultList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'storagegateway', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'StorageGateway_20120630.ListGateways'\n}}))\n/*\n{\"Gateways\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'datapipeline', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'DataPipeline.ListPipelines'\n}}))\n/*\n{\"hasMoreResults\":false,\"pipelineIdList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'opsworks', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'OpsWorks_20130218.DescribeStacks'\n}}))\n/*\n{\"Stacks\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'route53domains', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'Route53Domains_v20140515.ListDomains'\n}}))\n/*\n{\"Domains\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'kinesis', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'Kinesis_20131202.ListStreams'\n}}))\n/*\n{\"HasMoreStreams\":false,\"StreamNames\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'cloudtrail', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'CloudTrail_20131101.DescribeTrails'\n}}))\n/*\n{\"trailList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'logs', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'Logs_20140328.DescribeLogGroups'\n}}))\n/*\n{\"logGroups\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'codedeploy', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'CodeDeploy_20141006.ListApplications'\n}}))\n/*\n{\"applications\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'directconnect', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'OvertureService.DescribeConnections'\n}}))\n/*\n{\"connections\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'kms', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'TrentService.ListKeys'\n}}))\n/*\n{\"Keys\":[],\"Truncated\":false}\n...\n*/\n\nrequest(aws4.sign({service: 'config', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'StarlingDoveService.DescribeDeliveryChannels'\n}}))\n/*\n{\"DeliveryChannels\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'cloudhsm', body: '{}', headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'CloudHsmFrontendService.ListAvailableZones'\n}}))\n/*\n{\"AZList\":[\"us-east-1a\",\"us-east-1b\",\"us-east-1c\"]}\n...\n*/\n\nrequest(aws4.sign({\n service: 'swf',\n body: '{\"registrationStatus\":\"REGISTERED\"}',\n headers: {\n 'Content-Type': 'application/x-amz-json-1.0',\n 'X-Amz-Target': 'SimpleWorkflowService.ListDomains'\n }\n}))\n/*\n{\"domainInfos\":[]}\n...\n*/\n\nrequest(aws4.sign({\n service: 'cognito-identity',\n body: '{\"MaxResults\": 1}',\n headers: {\n 'Content-Type': 'application/x-amz-json-1.1',\n 'X-Amz-Target': 'AWSCognitoIdentityService.ListIdentityPools'\n }\n}))\n/*\n{\"IdentityPools\":[]}\n...\n*/\n\nrequest(aws4.sign({\n service: 'mobileanalytics',\n path: '/2014-06-05/events',\n body: JSON.stringify({events:[{\n eventType: 'a',\n timestamp: new Date().toISOString(),\n session: {},\n }]}),\n headers: {\n 'Content-Type': 'application/json',\n 'X-Amz-Client-Context': JSON.stringify({\n client: {client_id: 'a', app_title: 'a'},\n custom: {},\n env: {platform: 'a'},\n services: {},\n }),\n }\n}))\n/*\n(HTTP 202, empty response)\n*/\n\n// Generate CodeCommit Git access password\nvar signer = new aws4.RequestSigner({\n service: 'codecommit',\n host: 'git-codecommit.us-east-1.amazonaws.com',\n method: 'GIT',\n path: '/v1/repos/MyAwesomeRepo',\n})\nvar password = signer.getDateTime() + 'Z' + signer.signature()\n```\n\nAPI\n---\n\n### aws4.sign(requestOptions, [credentials])\n\nThis calculates and populates the `Authorization` header of\n`requestOptions`, and any other necessary AWS headers and/or request\noptions. Returns `requestOptions` as a convenience for chaining.\n\n`requestOptions` is an object holding the same options that the node.js\n[http.request](http://nodejs.org/docs/latest/api/http.html#http_http_request_options_callback)\nfunction takes.\n\nThe following properties of `requestOptions` are used in the signing or\npopulated if they don't already exist:\n\n- `hostname` or `host` (will be determined from `service` and `region` if not given)\n- `method` (will use `'GET'` if not given or `'POST'` if there is a `body`)\n- `path` (will use `'/'` if not given)\n- `body` (will use `''` if not given)\n- `service` (will be calculated from `hostname` or `host` if not given)\n- `region` (will be calculated from `hostname` or `host` or use `'us-east-1'` if not given)\n- `headers['Host']` (will use `hostname` or `host` or be calculated if not given)\n- `headers['Content-Type']` (will use `'application/x-www-form-urlencoded; charset=utf-8'`\n if not given and there is a `body`)\n- `headers['Date']` (used to calculate the signature date if given, otherwise `new Date` is used)\n\nYour AWS credentials (which can be found in your\n[AWS console](https://portal.aws.amazon.com/gp/aws/securityCredentials))\ncan be specified in one of two ways:\n\n- As the second argument, like this:\n\n```javascript\naws4.sign(requestOptions, {\n secretAccessKey: \"<your-secret-access-key>\",\n accessKeyId: \"<your-access-key-id>\",\n sessionToken: \"<your-session-token>\"\n})\n```\n\n- From `process.env`, such as this:\n\n```\nexport AWS_SECRET_ACCESS_KEY=\"<your-secret-access-key>\"\nexport AWS_ACCESS_KEY_ID=\"<your-access-key-id>\"\nexport AWS_SESSION_TOKEN=\"<your-session-token>\"\n```\n\n(will also use `AWS_ACCESS_KEY` and `AWS_SECRET_KEY` if available)\n\nThe `sessionToken` property and `AWS_SESSION_TOKEN` environment variable are optional for signing\nwith [IAM STS temporary credentials](http://docs.aws.amazon.com/STS/latest/UsingSTS/using-temp-creds.html).\n\nInstallation\n------------\n\nWith [npm](http://npmjs.org/) do:\n\n```\nnpm install aws4\n```\n\nCan also be used [in the browser](./browser).\n\nThanks\n------\n\nThanks to [@jed](https://github.com/jed) for his\n[dynamo-client](https://github.com/jed/dynamo-client) lib where I first\ncommitted and subsequently extracted this code.\n\nAlso thanks to the\n[official node.js AWS SDK](https://github.com/aws/aws-sdk-js) for giving\nme a start on implementing the v4 signature.\n# CSS Modules: Extract Imports\n\n[](https://travis-ci.org/css-modules/postcss-modules-extract-imports)\n\nTransforms:\n\n```css\n:local(.continueButton) {\n composes: button from \"library/button.css\";\n color: green;\n}\n```\n\ninto:\n\n```css\n:import(\"library/button.css\") {\n button: __tmp_487387465fczSDGHSABb;\n}\n:local(.continueButton) {\n composes: __tmp_487387465fczSDGHSABb;\n color: green;\n}\n```\n\n## Specification\n\n- Only a certain whitelist of properties are inspected. Currently, that whitelist is `['composes']` alone.\n- An extend-import has the following format:\n```\ncomposes: className [... className] from \"path/to/file.css\";\n```\n\n## Options\n\n- `failOnWrongOrder` `bool` generates exception for unpredictable imports order.\n\n```css\n.aa {\n composes: b from './b.css';\n composes: c from './c.css';\n}\n\n.bb {\n /* \"b.css\" should be before \"c.css\" in this case */\n composes: c from './c.css';\n composes: b from './b.css';\n}\n```\n\n## Building\n\n```\nnpm install\nnpm test\n```\n\n[](https://travis-ci.org/css-modules/postcss-modules-extract-imports)\n\n* Lines: [](https://coveralls.io/r/css-modules/postcss-modules-extract-imports?branch=master)\n* Statements: [](http://codecov.io/github/css-modules/postcss-modules-extract-imports?branch=master)\n\n## Development\n\n- `npm watch` will watch `src` for changes and rebuild\n- `npm autotest` will watch `src` and `test` for changes and retest\n\n## License\n\nISC\n\n## With thanks\n\n- Mark Dalgleish\n- Tobias Koppers\n- Guy Bedford\n\n---\nGlen Maddern, 2015.\n# cliui\n\n[](https://travis-ci.org/yargs/cliui)\n[](https://coveralls.io/r/yargs/cliui?branch=)\n[](https://www.npmjs.com/package/cliui)\n[](https://github.com/conventional-changelog/standard-version)\n\neasily create complex multi-column command-line-interfaces.\n\n## Example\n\n```js\nvar ui = require('cliui')({\n width: 80\n})\n\nui.div('Usage: $0 [command] [options]')\n\nui.div({\n text: 'Options:',\n padding: [2, 0, 2, 0]\n})\n\nui.div(\n {\n text: \"-f, --file\",\n width: 20,\n padding: [0, 4, 0, 4]\n },\n {\n text: \"the file to load.\" +\n chalk.green(\"(if this description is long it wraps).\")\n ,\n width: 20\n },\n {\n text: chalk.red(\"[required]\"),\n align: 'right'\n }\n)\n\nconsole.log(ui.toString())\n```\n\n<img width=\"500\" src=\"screenshot.png\">\n\n## Layout DSL\n\ncliui exposes a simple layout DSL:\n\nIf you create a single `ui.row`, passing a string rather than an\nobject:\n\n* `\\n`: characters will be interpreted as new rows.\n* `\\t`: characters will be interpreted as new columns.\n* `\\s`: characters will be interpreted as padding.\n\n**as an example...**\n\n```js\nvar ui = require('./')({\n width: 60\n})\n\nui.div(\n 'Usage: node ./bin/foo.js\\n' +\n ' <regex>\\t provide a regex\\n' +\n ' <glob>\\t provide a glob\\t [required]'\n)\n\nconsole.log(ui.toString())\n```\n\n**will output:**\n\n```shell\nUsage: node ./bin/foo.js\n <regex> provide a regex\n <glob> provide a glob [required]\n```\n\n## Methods\n\n```js\ncliui = require('cliui')\n```\n\n### cliui({width: integer})\n\nSpecify the maximum width of the UI being generated.\n\n### cliui({wrap: boolean})\n\nEnable or disable the wrapping of text in a column.\n\n### cliui.div(column, column, column)\n\nCreate a row with any number of columns, a column\ncan either be a string, or an object with the following\noptions:\n\n* **width:** the width of a column.\n* **align:** alignment, `right` or `center`.\n* **padding:** `[top, right, bottom, left]`.\n* **border:** should a border be placed around the div?\n\n### cliui.span(column, column, column)\n\nSimilar to `div`, except the next row will be appended without\na new line being created.\n# encodeurl\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nEncode a URL to a percent-encoded form, excluding already-encoded sequences\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install encodeurl\n```\n\n## API\n\n```js\nvar encodeUrl = require('encodeurl')\n```\n\n### encodeUrl(url)\n\nEncode a URL to a percent-encoded form, excluding already-encoded sequences.\n\nThis function will take an already-encoded URL and encode all the non-URL\ncode points (as UTF-8 byte sequences). This function will not encode the\n\"%\" character unless it is not part of a valid sequence (`%20` will be\nleft as-is, but `%foo` will be encoded as `%25foo`).\n\nThis encode is meant to be \"safe\" and does not throw errors. It will try as\nhard as it can to properly encode the given URL, including replacing any raw,\nunpaired surrogate pairs with the Unicode replacement character prior to\nencoding.\n\nThis function is _similar_ to the intrinsic function `encodeURI`, except it\nwill not encode the `%` character if that is part of a valid sequence, will\nnot encode `[` and `]` (for IPv6 hostnames) and will replace raw, unpaired\nsurrogate pairs with the Unicode replacement character (instead of throwing).\n\n## Examples\n\n### Encode a URL containing user-controled data\n\n```js\nvar encodeUrl = require('encodeurl')\nvar escapeHtml = require('escape-html')\n\nhttp.createServer(function onRequest (req, res) {\n // get encoded form of inbound url\n var url = encodeUrl(req.url)\n\n // create html message\n var body = '<p>Location ' + escapeHtml(url) + ' not found</p>'\n\n // send a 404\n res.statusCode = 404\n res.setHeader('Content-Type', 'text/html; charset=UTF-8')\n res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))\n res.end(body, 'utf-8')\n})\n```\n\n### Encode a URL for use in a header field\n\n```js\nvar encodeUrl = require('encodeurl')\nvar escapeHtml = require('escape-html')\nvar url = require('url')\n\nhttp.createServer(function onRequest (req, res) {\n // parse inbound url\n var href = url.parse(req)\n\n // set new host for redirect\n href.host = 'localhost'\n href.protocol = 'https:'\n href.slashes = true\n\n // create location header\n var location = encodeUrl(url.format(href))\n\n // create html message\n var body = '<p>Redirecting to new site: ' + escapeHtml(location) + '</p>'\n\n // send a 301\n res.statusCode = 301\n res.setHeader('Content-Type', 'text/html; charset=UTF-8')\n res.setHeader('Content-Length', String(Buffer.byteLength(body, 'utf-8')))\n res.setHeader('Location', location)\n res.end(body, 'utf-8')\n})\n```\n\n## Testing\n\n```sh\n$ npm test\n$ npm run lint\n```\n\n## References\n\n- [RFC 3986: Uniform Resource Identifier (URI): Generic Syntax][rfc-3986]\n- [WHATWG URL Living Standard][whatwg-url]\n\n[rfc-3986]: https://tools.ietf.org/html/rfc3986\n[whatwg-url]: https://url.spec.whatwg.org/\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/encodeurl.svg\n[npm-url]: https://npmjs.org/package/encodeurl\n[node-version-image]: https://img.shields.io/node/v/encodeurl.svg\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/pillarjs/encodeurl.svg\n[travis-url]: https://travis-ci.org/pillarjs/encodeurl\n[coveralls-image]: https://img.shields.io/coveralls/pillarjs/encodeurl.svg\n[coveralls-url]: https://coveralls.io/r/pillarjs/encodeurl?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/encodeurl.svg\n[downloads-url]: https://npmjs.org/package/encodeurl\n# process\n\n```require('process');``` just like any other module.\n\nWorks in node.js and browsers via the browser.js shim provided with the module.\n\n## browser implementation\n\nThe goal of this module is not to be a full-fledged alternative to the builtin process module. This module mostly exists to provide the nextTick functionality and little more. We keep this module lean because it will often be included by default by tools like browserify when it detects a module has used the `process` global.\n\nIt also exposes a \"browser\" member (i.e. `process.browser`) which is `true` in this implementation but `undefined` in node. This can be used in isomorphic code that adjusts it's behavior depending on which environment it's running in. \n\nIf you are looking to provide other process methods, I suggest you monkey patch them onto the process global in your app. A list of user created patches is below.\n\n* [hrtime](https://github.com/kumavis/browser-process-hrtime)\n* [stdout](https://github.com/kumavis/browser-stdout)\n\n## package manager notes\n\nIf you are writing a bundler to package modules for client side use, make sure you use the ```browser``` field hint in package.json.\n\nSee https://gist.github.com/4339901 for details.\n\nThe [browserify](https://github.com/substack/node-browserify) module will properly handle this field when bundling your files.\n# emojis-list\n\n[](https://david-dm.org/Kikobeats/emojis-list)\n[](https://david-dm.org/Kikobeats/emojis-list#info=devDependencies)\n[](https://www.npmjs.org/package/emojis-list)\n[](https://paypal.me/kikobeats)\n\n> Complete list of standard Unicode Hex Character Code that represent emojis.\n\n**NOTE**: The lists is related with the Unicode Hex Character Code. The representation of the emoji depend of the system. Will be possible that the system don't have all the representations.\n\n## Install\n\n```bash\nnpm install emojis-list --save\n```\n\nIf you want to use in the browser (powered by [Browserify](http://browserify.org/)):\n\n```bash\nbower install emojis-list --save\n```\n\nand later link in your HTML:\n\n```html\n<script src=\"bower_components/emojis-list/dist/emojis-list.js\"></script>\n```\n\n## Usage\n\n```\nvar emojis = require('emojis-list');\nconsole.log(emojis[0]);\n// => 🀄\n```\n\n## Related\n\n* [emojis-unicode](https://github.com/Kikobeats/emojis-unicode) – Complete list of standard Unicode codes that represent emojis.\n* [emojis-keywords](https://github.com/Kikobeats/emojis-keywords) – Complete list of am emoji shortcuts.\n* [is-emoji-keyword](https://github.com/Kikobeats/is-emoji-keyword) – Check if a word is a emoji shortcut.\n* [is-standard-emoji](https://github.com/kikobeats/is-standard-emoji) – Simply way to check if a emoji is a standard emoji.\n* [trim-emoji](https://github.com/Kikobeats/trim-emoji) – Deletes ':' from the begin and the end of an emoji shortcut.\n\n## License\n\nMIT © [Kiko Beats](http://www.kikobeats.com)\n# lodash.mergewith v4.6.1\n\nThe [Lodash](https://lodash.com/) method `_.mergeWith` exported as a [Node.js](https://nodejs.org/) module.\n\n## Installation\n\nUsing npm:\n```bash\n$ {sudo -H} npm i -g npm\n$ npm i --save lodash.mergewith\n```\n\nIn Node.js:\n```js\nvar mergeWith = require('lodash.mergewith');\n```\n\nSee the [documentation](https://lodash.com/docs#mergeWith) or [package source](https://github.com/lodash/lodash/blob/4.6.1-npm-packages/lodash.mergewith) for more details.\n# loader-utils\n\n## Methods\n\n### `getOptions`\n\nRecommended way to retrieve the options of a loader invocation:\n\n```javascript\n// inside your loader\nconst options = loaderUtils.getOptions(this);\n```\n\n1. If `this.query` is a string:\n\t- Tries to parse the query string and returns a new object\n\t- Throws if it's not a valid query string\n2. If `this.query` is object-like, it just returns `this.query`\n3. In any other case, it just returns `null`\n\n**Please note:** The returned `options` object is *read-only*. It may be re-used across multiple invocations.\nIf you pass it on to another library, make sure to make a *deep copy* of it:\n\n```javascript\nconst options = Object.assign(\n\t{},\n\tdefaultOptions,\n\tloaderUtils.getOptions(this) // it is safe to pass null to Object.assign()\n);\n// don't forget nested objects or arrays\noptions.obj = Object.assign({}, options.obj); \noptions.arr = options.arr.slice();\nsomeLibrary(options);\n```\n\n[clone](https://www.npmjs.com/package/clone) is a good library to make a deep copy of the options.\n\n#### Options as query strings\n\nIf the loader options have been passed as loader query string (`loader?some¶ms`), the string is parsed by using [`parseQuery`](#parsequery).\n\n### `parseQuery`\n\nParses a passed string (e.g. `loaderContext.resourceQuery`) as a query string, and returns an object.\n\n``` javascript\nconst params = loaderUtils.parseQuery(this.resourceQuery); // resource: `file?param1=foo`\nif (params.param1 === \"foo\") {\n\t// do something\n}\n```\n\nThe string is parsed like this:\n\n``` text\n -> Error\n? -> {}\n?flag -> { flag: true }\n?+flag -> { flag: true }\n?-flag -> { flag: false }\n?xyz=test -> { xyz: \"test\" }\n?xyz=1 -> { xyz: \"1\" } // numbers are NOT parsed\n?xyz[]=a -> { xyz: [\"a\"] }\n?flag1&flag2 -> { flag1: true, flag2: true }\n?+flag1,-flag2 -> { flag1: true, flag2: false }\n?xyz[]=a,xyz[]=b -> { xyz: [\"a\", \"b\"] }\n?a%2C%26b=c%2C%26d -> { \"a,&b\": \"c,&d\" }\n?{data:{a:1},isJSON5:true} -> { data: { a: 1 }, isJSON5: true }\n```\n\n### `stringifyRequest`\n\nTurns a request into a string that can be used inside `require()` or `import` while avoiding absolute paths.\nUse it instead of `JSON.stringify(...)` if you're generating code inside a loader.\n\n**Why is this necessary?** Since webpack calculates the hash before module paths are translated into module ids, we must avoid absolute paths to ensure\nconsistent hashes across different compilations.\n\nThis function:\n\n- resolves absolute requests into relative requests if the request and the module are on the same hard drive\n- replaces `\\` with `/` if the request and the module are on the same hard drive\n- won't change the path at all if the request and the module are on different hard drives\n- applies `JSON.stringify` to the result\n\n```javascript\nloaderUtils.stringifyRequest(this, \"./test.js\");\n// \"\\\"./test.js\\\"\"\n\nloaderUtils.stringifyRequest(this, \".\\\\test.js\");\n// \"\\\"./test.js\\\"\"\n\nloaderUtils.stringifyRequest(this, \"test\");\n// \"\\\"test\\\"\"\n\nloaderUtils.stringifyRequest(this, \"test/lib/index.js\");\n// \"\\\"test/lib/index.js\\\"\"\n\nloaderUtils.stringifyRequest(this, \"otherLoader?andConfig!test?someConfig\");\n// \"\\\"otherLoader?andConfig!test?someConfig\\\"\"\n\nloaderUtils.stringifyRequest(this, require.resolve(\"test\"));\n// \"\\\"../node_modules/some-loader/lib/test.js\\\"\"\n\nloaderUtils.stringifyRequest(this, \"C:\\\\module\\\\test.js\");\n// \"\\\"../../test.js\\\"\" (on Windows, in case the module and the request are on the same drive)\n\nloaderUtils.stringifyRequest(this, \"C:\\\\module\\\\test.js\");\n// \"\\\"C:\\\\module\\\\test.js\\\"\" (on Windows, in case the module and the request are on different drives)\n\nloaderUtils.stringifyRequest(this, \"\\\\\\\\network-drive\\\\test.js\");\n// \"\\\"\\\\\\\\network-drive\\\\\\\\test.js\\\"\" (on Windows, in case the module and the request are on different drives)\n```\n\n### `urlToRequest`\n\nConverts some resource URL to a webpack module request.\n\n> i Before call `urlToRequest` you need call `isUrlRequest` to ensure it is requestable url\n\n```javascript\nconst url = \"path/to/module.js\";\n\nif (loaderUtils.isUrlRequest(url)) {\n // Logic for requestable url\n const request = loaderUtils.urlToRequest(url);\n} else {\n // Logic for not requestable url\n}\n```\n\nSimple example:\n\n```javascript\nconst url = \"path/to/module.js\";\nconst request = loaderUtils.urlToRequest(url); // \"./path/to/module.js\"\n```\n\n#### Module URLs\n\nAny URL containing a `~` will be interpreted as a module request. Anything after the `~` will be considered the request path.\n\n```javascript\nconst url = \"~path/to/module.js\";\nconst request = loaderUtils.urlToRequest(url); // \"path/to/module.js\"\n```\n\n#### Root-relative URLs\n\nURLs that are root-relative (start with `/`) can be resolved relative to some arbitrary path by using the `root` parameter:\n\n```javascript\nconst url = \"/path/to/module.js\";\nconst root = \"./root\";\nconst request = loaderUtils.urlToRequest(url, root); // \"./root/path/to/module.js\"\n```\n\nTo convert a root-relative URL into a module URL, specify a `root` value that starts with `~`:\n\n```javascript\nconst url = \"/path/to/module.js\";\nconst root = \"~\";\nconst request = loaderUtils.urlToRequest(url, root); // \"path/to/module.js\"\n```\n\n### `interpolateName`\n\nInterpolates a filename template using multiple placeholders and/or a regular expression.\nThe template and regular expression are set as query params called `name` and `regExp` on the current loader's context.\n\n```javascript\nconst interpolatedName = loaderUtils.interpolateName(loaderContext, name, options);\n```\n\nThe following tokens are replaced in the `name` parameter:\n\n* `[ext]` the extension of the resource\n* `[name]` the basename of the resource\n* `[path]` the path of the resource relative to the `context` query parameter or option.\n* `[folder]` the folder of the resource is in.\n* `[emoji]` a random emoji representation of `options.content`\n* `[emoji:<length>]` same as above, but with a customizable number of emojis\n* `[contenthash]` the hash of `options.content` (Buffer) (by default it's the hex digest of the md5 hash)\n* `[<hashType>:contenthash:<digestType>:<length>]` optionally one can configure\n * other `hashType`s, i. e. `sha1`, `md5`, `sha256`, `sha512`\n * other `digestType`s, i. e. `hex`, `base26`, `base32`, `base36`, `base49`, `base52`, `base58`, `base62`, `base64`\n * and `length` the length in chars\n* `[hash]` the hash of `options.content` (Buffer) (by default it's the hex digest of the md5 hash)\n* `[<hashType>:hash:<digestType>:<length>]` optionally one can configure\n * other `hashType`s, i. e. `sha1`, `md5`, `sha256`, `sha512`\n * other `digestType`s, i. e. `hex`, `base26`, `base32`, `base36`, `base49`, `base52`, `base58`, `base62`, `base64`\n * and `length` the length in chars\n* `[N]` the N-th match obtained from matching the current file name against `options.regExp`\n\nIn loader context `[hash]` and `[contenthash]` are the same, but we recommend using `[contenthash]` for avoid misleading.\n\nExamples\n\n``` javascript\n// loaderContext.resourcePath = \"/app/js/javascript.js\"\nloaderUtils.interpolateName(loaderContext, \"js/[hash].script.[ext]\", { content: ... });\n// => js/9473fdd0d880a43c21b7778d34872157.script.js\n\n// loaderContext.resourcePath = \"/app/js/javascript.js\"\nloaderUtils.interpolateName(loaderContext, \"js/[contenthash].script.[ext]\", { content: ... });\n// => js/9473fdd0d880a43c21b7778d34872157.script.js\n\n// loaderContext.resourcePath = \"/app/page.html\"\nloaderUtils.interpolateName(loaderContext, \"html-[hash:6].html\", { content: ... });\n// => html-9473fd.html\n\n// loaderContext.resourcePath = \"/app/flash.txt\"\nloaderUtils.interpolateName(loaderContext, \"[hash]\", { content: ... });\n// => c31e9820c001c9c4a86bce33ce43b679\n\n// loaderContext.resourcePath = \"/app/img/image.gif\"\nloaderUtils.interpolateName(loaderContext, \"[emoji]\", { content: ... });\n// => 👍\n\n// loaderContext.resourcePath = \"/app/img/image.gif\"\nloaderUtils.interpolateName(loaderContext, \"[emoji:4]\", { content: ... });\n// => 🙍🏢📤🐝\n\n// loaderContext.resourcePath = \"/app/img/image.png\"\nloaderUtils.interpolateName(loaderContext, \"[sha512:hash:base64:7].[ext]\", { content: ... });\n// => 2BKDTjl.png\n// use sha512 hash instead of md5 and with only 7 chars of base64\n\n// loaderContext.resourcePath = \"/app/img/myself.png\"\n// loaderContext.query.name =\nloaderUtils.interpolateName(loaderContext, \"picture.png\");\n// => picture.png\n\n// loaderContext.resourcePath = \"/app/dir/file.png\"\nloaderUtils.interpolateName(loaderContext, \"[path][name].[ext]?[hash]\", { content: ... });\n// => /app/dir/file.png?9473fdd0d880a43c21b7778d34872157\n\n// loaderContext.resourcePath = \"/app/js/page-home.js\"\nloaderUtils.interpolateName(loaderContext, \"script-[1].[ext]\", { regExp: \"page-(.*)\\\\.js\", content: ... });\n// => script-home.js\n```\n\n### `getHashDigest`\n\n``` javascript\nconst digestString = loaderUtils.getHashDigest(buffer, hashType, digestType, maxLength);\n```\n\n* `buffer` the content that should be hashed\n* `hashType` one of `sha1`, `md5`, `sha256`, `sha512` or any other node.js supported hash type\n* `digestType` one of `hex`, `base26`, `base32`, `base36`, `base49`, `base52`, `base58`, `base62`, `base64`\n* `maxLength` the maximum length in chars\n\n## License\n\nMIT (http://www.opensource.org/licenses/mit-license.php)\n# ajv-keywords\n\nCustom JSON-Schema keywords for [Ajv](https://github.com/epoberezkin/ajv) validator\n\n[](https://travis-ci.org/epoberezkin/ajv-keywords)\n[](https://www.npmjs.com/package/ajv-keywords)\n[](https://www.npmjs.com/package/ajv-keywords)\n[](https://coveralls.io/github/epoberezkin/ajv-keywords?branch=master)\n[](https://greenkeeper.io/)\n[](https://gitter.im/ajv-validator/ajv)\n\n## Contents\n\n- [Install](#install)\n- [Usage](#usage)\n- [Keywords](#keywords)\n - [Types](#types)\n - [typeof](#typeof)\n - [instanceof](#instanceof)\n - [Keywords for numbers](#keywords-for-numbers)\n - [range and exclusiveRange](#range-and-exclusiverange)\n - [Keywords for strings](#keywords-for-strings)\n - [regexp](#regexp)\n - [formatMaximum / formatMinimum and formatExclusiveMaximum / formatExclusiveMinimum](#formatmaximum--formatminimum-and-formatexclusivemaximum--formatexclusiveminimum)\n - [transform](#transform)<sup>\\*</sup>\n - [Keywords for arrays](#keywords-for-arrays)\n - [uniqueItemProperties](#uniqueitemproperties)\n - [Keywords for objects](#keywords-for-objects)\n - [allRequired](allrequired)\n - [anyRequired](anyrequired)\n - [patternRequired](#patternrequired)\n - [prohibited](#prohibited)\n - [deepProperties](#deepproperties)\n - [deepRequired](#deeprequired)\n - [Compound keywords](#compound-keywords)\n - [switch](#switch) (deprecated)\n - [select/selectCases/selectDefault](#selectselectcasesselectdefault) (BETA)\n - [Keywords for all types](#keywords-for-all-types)\n - [dynamicDefaults](#dynamicdefaults)<sup>\\*</sup>\n- [License](#license)\n\n<sup>\\*</sup> - keywords that modify data\n\n## Install\n\n```\nnpm install ajv-keywords\n```\n\n## Usage\n\nTo add all available keywords:\n\n```javascript\nvar Ajv = require('ajv');\nvar ajv = new Ajv;\nrequire('ajv-keywords')(ajv);\n\najv.validate({ instanceof: 'RegExp' }, /.*/); // true\najv.validate({ instanceof: 'RegExp' }, '.*'); // false\n```\n\nTo add a single keyword:\n\n```javascript\nrequire('ajv-keywords')(ajv, 'instanceof');\n```\n\nTo add multiple keywords:\n\n```javascript\nrequire('ajv-keywords')(ajv, ['typeof', 'instanceof']);\n```\n\nTo add a single keyword in browser (to avoid adding unused code):\n\n```javascript\nrequire('ajv-keywords/keywords/instanceof')(ajv);\n```\n\n## Keywords\n\n### Types\n\n#### `typeof`\n\nBased on JavaScript `typeof` operation.\n\nThe value of the keyword should be a string (`\"undefined\"`, `\"string\"`, `\"number\"`, `\"object\"`, `\"function\"`, `\"boolean\"` or `\"symbol\"`) or array of strings.\n\nTo pass validation the result of `typeof` operation on the value should be equal to the string (or one of the strings in the array).\n\n```\najv.validate({ typeof: 'undefined' }, undefined); // true\najv.validate({ typeof: 'undefined' }, null); // false\najv.validate({ typeof: ['undefined', 'object'] }, null); // true\n```\n\n#### `instanceof`\n\nBased on JavaScript `instanceof` operation.\n\nThe value of the keyword should be a string (`\"Object\"`, `\"Array\"`, `\"Function\"`, `\"Number\"`, `\"String\"`, `\"Date\"`, `\"RegExp\"`, `\"Promise\"` or `\"Buffer\"`) or array of strings.\n\nTo pass validation the result of `data instanceof ...` operation on the value should be true:\n\n```\najv.validate({ instanceof: 'Array' }, []); // true\najv.validate({ instanceof: 'Array' }, {}); // false\najv.validate({ instanceof: ['Array', 'Function'] }, function(){}); // true\n```\n\nYou can add your own constructor function to be recognised by this keyword:\n\n```javascript\nfunction MyClass() {}\nvar instanceofDefinition = require('ajv-keywords').get('instanceof').definition;\n// or require('ajv-keywords/keywords/instanceof').definition;\ninstanceofDefinition.CONSTRUCTORS.MyClass = MyClass;\n\najv.validate({ instanceof: 'MyClass' }, new MyClass); // true\n```\n\n### Keywords for numbers\n\n#### `range` and `exclusiveRange`\n\nSyntax sugar for the combination of minimum and maximum keywords, also fails schema compilation if there are no numbers in the range.\n\nThe value of this keyword must be the array consisting of two numbers, the second must be greater or equal than the first one.\n\nIf the validated value is not a number the validation passes, otherwise to pass validation the value should be greater (or equal) than the first number and smaller (or equal) than the second number in the array. If `exclusiveRange` keyword is present in the same schema and its value is true, the validated value must not be equal to the range boundaries.\n\n```javascript\nvar schema = { range: [1, 3] };\najv.validate(schema, 1); // true\najv.validate(schema, 2); // true\najv.validate(schema, 3); // true\najv.validate(schema, 0.99); // false\najv.validate(schema, 3.01); // false\n\nvar schema = { range: [1, 3], exclusiveRange: true };\najv.validate(schema, 1.01); // true\najv.validate(schema, 2); // true\najv.validate(schema, 2.99); // true\najv.validate(schema, 1); // false\najv.validate(schema, 3); // false\n```\n\n### Keywords for strings\n\n#### `regexp`\n\nThis keyword allows to use regular expressions with flags in schemas (the standard `pattern` keyword does not support flags).\n\nThis keyword applies only to strings. If the data is not a string, the validation succeeds.\n\nThe value of this keyword can be either a string (the result of `regexp.toString()`) or an object with the properties `pattern` and `flags` (the same strings that should be passed to RegExp constructor).\n\n```javascript\nvar schema = {\n type: 'object',\n properties: {\n foo: { regexp: '/foo/i' },\n bar: { regexp: { pattern: 'bar', flags: 'i' } }\n }\n};\n\nvar validData = {\n foo: 'Food',\n bar: 'Barmen'\n};\n\nvar invalidData = {\n foo: 'fog',\n bar: 'bad'\n};\n```\n\n#### `formatMaximum` / `formatMinimum` and `formatExclusiveMaximum` / `formatExclusiveMinimum`\n\nThese keywords allow to define minimum/maximum constraints when the format keyword defines ordering.\n\nThese keywords apply only to strings. If the data is not a string, the validation succeeds.\n\nThe value of keyword `formatMaximum` (`formatMinimum`) should be a string. This value is the maximum (minimum) allowed value for the data to be valid as determined by `format` keyword. If `format` is not present schema compilation will throw exception.\n\nWhen this keyword is added, it defines comparison rules for formats `\"date\"`, `\"time\"` and `\"date-time\"`. Custom formats also can have comparison rules. See [addFormat](https://github.com/epoberezkin/ajv#api-addformat) method.\n\nThe value of keyword `formatExclusiveMaximum` (`formatExclusiveMinimum`) should be a boolean value. These keyword cannot be used without `formatMaximum` (`formatMinimum`). If this keyword value is equal to `true`, the data to be valid should not be equal to the value in `formatMaximum` (`formatMinimum`) keyword.\n\n```javascript\nrequire('ajv-keywords')(ajv, ['formatMinimum', 'formatMaximum']);\n\nvar schema = {\n format: 'date',\n formatMinimum: '2016-02-06',\n formatMaximum: '2016-12-27',\n formatExclusiveMaximum: true\n}\n\nvar validDataList = ['2016-02-06', '2016-12-26', 1];\n\nvar invalidDataList = ['2016-02-05', '2016-12-27', 'abc'];\n```\n\n#### `transform`\n\nThis keyword allows a string to be modified before validation. \n\nThese keywords apply only to strings. If the data is not a string, the transform is skipped.\n\nThere are limitation due to how ajv is written:\n- a stand alone string cannot be transformed. ie `data = 'a'; ajv.validate(schema, data);`\n- currently cannot work with `ajv-pack`\n\n**Supported options:**\n- `trim`: remove whitespace from start and end\n- `trimLeft`: remove whitespace from start\n- `trimRight`: remove whitespace from end\n- `toLowerCase`: case string to all lower case\n- `toUpperCase`: case string to all upper case\n- `toEnumCase`: case string to match case in schema\n\nOptions are applied in the order they are listed.\n\nNote: `toEnumCase` requires that all allowed values are unique when case insensitive.\n\n**Example: multiple options**\n```javascript\nrequire('ajv-keywords')(ajv, ['transform']);\n\nvar schema = {\n type: 'array',\n items: {\n type:'string',\n transform:['trim','toLowerCase']\n }\n};\n\nvar data = [' MixCase '];\najv.validate(schema, data);\nconsole.log(data); // ['mixcase']\n\n```\n\n**Example: `enumcase`**\n```javascript\nrequire('ajv-keywords')(ajv, ['transform']);\n\nvar schema = {\n type: 'array',\n items: {\n type:'string',\n transform:['trim','toEnumCase'],\n enum:['pH']\n }\n};\n\nvar data = ['ph',' Ph','PH','pH '];\najv.validate(schema, data);\nconsole.log(data); // ['pH','pH','pH','pH']\n```\n\n### Keywords for arrays\n\n#### `uniqueItemProperties`\n\nThe keyword allows to check that some properties in array items are unique.\n\nThis keyword applies only to arrays. If the data is not an array, the validation succeeds.\n\nThe value of this keyword must be an array of strings - property names that should have unique values across all items.\n\n```javascript\nvar schema = { uniqueItemProperties: [ \"id\", \"name\" ] };\n\nvar validData = [\n { id: 1 },\n { id: 2 },\n { id: 3 }\n];\n\nvar invalidData1 = [\n { id: 1 },\n { id: 1 },\n { id: 3 }\n];\n\nvar invalidData2 = [\n { id: 1, name: \"taco\" },\n { id: 2, name: \"taco\" }, // duplicate \"name\"\n { id: 3, name: \"salsa\" }\n];\n```\n\nThis keyword is contributed by [@blainesch](https://github.com/blainesch).\n\n### Keywords for objects\n\n#### `allRequired`\n\nThis keyword allows to require the presence of all properties used in `properties` keyword in the same schema object.\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value of this keyword must be boolean.\n\nIf the value of the keyword is `false`, the validation succeeds.\n\nIf the value of the keyword is `true`, the validation succeeds if the data contains all properties defined in `properties` keyword (in the same schema object).\n\nIf the `properties` keyword is not present in the same schema object, schema compilation will throw exception.\n\n```javascript\nvar schema = {\n properties: {\n foo: {type: 'number'},\n bar: {type: 'number'}\n }\n allRequired: true\n};\n\nvar validData = { foo: 1, bar: 2 };\nvar alsoValidData = { foo: 1, bar: 2, baz: 3 };\n\nvar invalidDataList = [ {}, { foo: 1 }, { bar: 2 } ];\n```\n\n#### `anyRequired`\n\nThis keyword allows to require the presence of any (at least one) property from the list.\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value of this keyword must be an array of strings, each string being a property name. For data object to be valid at least one of the properties in this array should be present in the object.\n\n```javascript\nvar schema = {\n anyRequired: ['foo', 'bar']\n};\n\nvar validData = { foo: 1 };\nvar alsoValidData = { foo: 1, bar: 2 };\n\nvar invalidDataList = [ {}, { baz: 3 } ];\n```\n\n__Please note__: By combining `anyRequired` with `maxProperties: 1` you can achieve that exactly one property from the list is required to be present for the data object to pass validation.\n\n#### `patternRequired`\n\nThis keyword allows to require the presence of properties that match some pattern(s).\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value of this keyword should be an array of strings, each string being a regular expression. For data object to be valid each regular expression in this array should match at least one property name in the data object.\n\nIf the array contains multiple regular expressions, more than one expression can match the same property name.\n\n```javascript\nvar schema = { patternRequired: [ 'f.*o', 'b.*r' ] };\n\nvar validData = { foo: 1, bar: 2 };\nvar alsoValidData = { foobar: 3 };\n\nvar invalidDataList = [ {}, { foo: 1 }, { bar: 2 } ];\n```\n\n#### `prohibited`\n\nThis keyword allows to prohibit that any of the properties in the list is present in the object.\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value of this keyword should be an array of strings, each string being a property name. For data object to be valid none of the properties in this array should be present in the object.\n\n```\nvar schema = { prohibited: ['foo', 'bar']};\n\nvar validData = { baz: 1 };\nvar alsoValidData = {};\n\nvar invalidDataList = [\n { foo: 1 },\n { bar: 2 },\n { foo: 1, bar: 2}\n];\n```\n\n__Please note__: `{prohibited: ['foo', 'bar']}` is equivalent to `{not: {anyRequired: ['foo', 'bar']}}` (i.e. it has the same validation result for any data).\n\n#### `deepProperties`\n\nThis keyword allows to validate deep properties (identified by JSON pointers).\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value should be an object, where keys are JSON pointers to the data, starting from the current position in data, and the values are JSON schemas. For data object to be valid the value of each JSON pointer should be valid according to the corresponding schema.\n\n```javascript\nvar schema = {\n type: 'object',\n deepProperties: {\n \"/users/1/role\": { \"enum\": [\"admin\"] }\n }\n};\n\nvar validData = {\n users: [\n {},\n {\n id: 123,\n role: 'admin'\n }\n ]\n};\n\nvar alsoValidData = {\n users: {\n \"1\": {\n id: 123,\n role: 'admin'\n }\n }\n};\n\nvar invalidData = {\n users: [\n {},\n {\n id: 123,\n role: 'user'\n }\n ]\n};\n\nvar alsoInvalidData = {\n users: {\n \"1\": {\n id: 123,\n role: 'user'\n }\n }\n};\n```\n\n#### `deepRequired`\n\nThis keyword allows to check that some deep properties (identified by JSON pointers) are available.\n\nThis keyword applies only to objects. If the data is not an object, the validation succeeds.\n\nThe value should be an array of JSON pointers to the data, starting from the current position in data. For data object to be valid each JSON pointer should be some existing part of the data.\n\n```javascript\nvar schema = {\n type: 'object',\n deepRequired: [\"/users/1/role\"]\n};\n\nvar validData = {\n users: [\n {},\n {\n id: 123,\n role: 'admin'\n }\n ]\n};\n\nvar invalidData = {\n users: [\n {},\n {\n id: 123\n }\n ]\n};\n```\n\nSee [json-schema-org/json-schema-spec#203](https://github.com/json-schema-org/json-schema-spec/issues/203#issue-197211916) for an example of the equivalent schema without `deepRequired` keyword.\n\n### Compound keywords\n\n#### `switch` (deprecated)\n\n__Please note__: this keyword is provided to preserve backward compatibility with previous versions of Ajv. It is strongly recommended to use `if`/`then`/`else` keywords instead, as they have been added to the draft-07 of JSON Schema specification.\n\nThis keyword allows to perform advanced conditional validation.\n\nThe value of the keyword is the array of if/then clauses. Each clause is the object with the following properties:\n\n- `if` (optional) - the value is JSON-schema\n- `then` (required) - the value is JSON-schema or boolean\n- `continue` (optional) - the value is boolean\n\nThe validation process is dynamic; all clauses are executed sequentially in the following way:\n\n1. `if`:\n 1. `if` property is JSON-schema according to which the data is:\n 1. valid => go to step 2.\n 2. invalid => go to the NEXT clause, if this was the last clause the validation of `switch` SUCCEEDS.\n 2. `if` property is absent => go to step 2.\n2. `then`:\n 1. `then` property is `true` or it is JSON-schema according to which the data is valid => go to step 3.\n 2. `then` property is `false` or it is JSON-schema according to which the data is invalid => the validation of `switch` FAILS.\n3. `continue`:\n 1. `continue` property is `true` => go to the NEXT clause, if this was the last clause the validation of `switch` SUCCEEDS.\n 2. `continue` property is `false` or absent => validation of `switch` SUCCEEDS.\n\n```javascript\nrequire('ajv-keywords')(ajv, 'switch');\n\nvar schema = {\n type: 'array',\n items: {\n type: 'integer',\n 'switch': [\n { if: { not: { minimum: 1 } }, then: false },\n { if: { maximum: 10 }, then: true },\n { if: { maximum: 100 }, then: { multipleOf: 10 } },\n { if: { maximum: 1000 }, then: { multipleOf: 100 } },\n { then: false }\n ]\n }\n};\n\nvar validItems = [1, 5, 10, 20, 50, 100, 200, 500, 1000];\n\nvar invalidItems = [1, 0, 2000, 11, 57, 123, 'foo'];\n```\n\nThe above schema is equivalent to (for example):\n\n```javascript\n{\n type: 'array',\n items: {\n type: 'integer',\n if: { minimum: 1, maximum: 10 },\n then: true,\n else: {\n if: { maximum: 100 },\n then: { multipleOf: 10 },\n else: {\n if: { maximum: 1000 },\n then: { multipleOf: 100 },\n else: false\n }\n }\n }\n}\n```\n\n#### `select`/`selectCases`/`selectDefault`\n\nThese keywords allow to choose the schema to validate the data based on the value of some property in the validated data.\n\nThese keywords must be present in the same schema object (`selectDefault` is optional).\n\nThe value of `select` keyword should be a [$data reference](https://github.com/epoberezkin/ajv/tree/5.0.2-beta.0#data-reference) that points to any primitive JSON type (string, number, boolean or null) in the data that is validated. You can also use a constant of primitive type as the value of this keyword (e.g., for debugging purposes).\n\nThe value of `selectCases` keyword must be an object where each property name is a possible string representation of the value of `select` keyword and each property value is a corresponding schema (from draft-06 it can be boolean) that must be used to validate the data.\n\nThe value of `selectDefault` keyword is a schema (from draft-06 it can be boolean) that must be used to validate the data in case `selectCases` has no key equal to the stringified value of `select` keyword.\n\nThe validation succeeds in one of the following cases:\n- the validation of data using selected schema succeeds,\n- none of the schemas is selected for validation,\n- the value of select is undefined (no property in the data that the data reference points to).\n\nIf `select` value (in data) is not a primitive type the validation fails.\n\n__Please note__: these keywords require Ajv `$data` option to support [$data reference](https://github.com/epoberezkin/ajv/tree/5.0.2-beta.0#data-reference).\n\n```javascript\nrequire('ajv-keywords')(ajv, 'select');\n\nvar schema = {\n type: object,\n required: ['kind'],\n properties: {\n kind: { type: 'string' }\n },\n select: { $data: '0/kind' },\n selectCases: {\n foo: {\n required: ['foo'],\n properties: {\n kind: {},\n foo: { type: 'string' }\n },\n additionalProperties: false\n },\n bar: {\n required: ['bar'],\n properties: {\n kind: {},\n bar: { type: 'number' }\n },\n additionalProperties: false\n }\n },\n selectDefault: {\n propertyNames: {\n not: { enum: ['foo', 'bar'] }\n }\n }\n};\n\nvar validDataList = [\n { kind: 'foo', foo: 'any' },\n { kind: 'bar', bar: 1 },\n { kind: 'anything_else', not_bar_or_foo: 'any value' }\n];\n\nvar invalidDataList = [\n { kind: 'foo' }, // no propery foo\n { kind: 'bar' }, // no propery bar\n { kind: 'foo', foo: 'any', another: 'any value' }, // additional property\n { kind: 'bar', bar: 1, another: 'any value' }, // additional property\n { kind: 'anything_else', foo: 'any' } // property foo not allowed\n { kind: 'anything_else', bar: 1 } // property bar not allowed\n];\n```\n\n__Please note__: the current implementation is BETA. It does not allow using relative URIs in $ref keywords in schemas in `selectCases` and `selectDefault` that point outside of these schemas. The workaround is to use absolute URIs (that can point to any (sub-)schema added to Ajv, including those inside the current root schema where `select` is used). See [tests](https://github.com/epoberezkin/ajv-keywords/blob/v2.0.0/spec/tests/select.json#L314).\n\n### Keywords for all types\n\n#### `dynamicDefaults`\n\nThis keyword allows to assign dynamic defaults to properties, such as timestamps, unique IDs etc.\n\nThis keyword only works if `useDefaults` options is used and not inside `anyOf` keywords etc., in the same way as [default keyword treated by Ajv](https://github.com/epoberezkin/ajv#assigning-defaults).\n\nThe keyword should be added on the object level. Its value should be an object with each property corresponding to a property name, in the same way as in standard `properties` keyword. The value of each property can be:\n\n- an identifier of default function (a string)\n- an object with properties `func` (an identifier) and `args` (an object with parameters that will be passed to this function during schema compilation - see examples).\n\nThe properties used in `dynamicDefaults` should not be added to `required` keyword (or validation will fail), because unlike `default` this keyword is processed after validation.\n\nThere are several predefined dynamic default functions:\n\n- `\"timestamp\"` - current timestamp in milliseconds\n- `\"datetime\"` - current date and time as string (ISO, valid according to `date-time` format)\n- `\"date\"` - current date as string (ISO, valid according to `date` format)\n- `\"time\"` - current time as string (ISO, valid according to `time` format)\n- `\"random\"` - pseudo-random number in [0, 1) interval\n- `\"randomint\"` - pseudo-random integer number. If string is used as a property value, the function will randomly return 0 or 1. If object `{ func: 'randomint', args: { max: N } }` is used then the default will be an integer number in [0, N) interval.\n- `\"seq\"` - sequential integer number starting from 0. If string is used as a property value, the default sequence will be used. If object `{ func: 'seq', args: { name: 'foo'} }` is used then the sequence with name `\"foo\"` will be used. Sequences are global, even if different ajv instances are used.\n\n```javascript\nvar schema = {\n type: 'object',\n dynamicDefaults: {\n ts: 'datetime',\n r: { func: 'randomint', args: { max: 100 } },\n id: { func: 'seq', args: { name: 'id' } }\n },\n properties: {\n ts: {\n type: 'string',\n format: 'date-time'\n },\n r: {\n type: 'integer',\n minimum: 0,\n exclusiveMaximum: 100\n },\n id: {\n type: 'integer',\n minimum: 0\n }\n }\n};\n\nvar data = {};\najv.validate(data); // true\ndata; // { ts: '2016-12-01T22:07:28.829Z', r: 25, id: 0 }\n\nvar data1 = {};\najv.validate(data1); // true\ndata1; // { ts: '2016-12-01T22:07:29.832Z', r: 68, id: 1 }\n\najv.validate(data1); // true\ndata1; // didn't change, as all properties were defined\n```\n\nWhen using the `useDefaults` option value `\"empty\"`, properties and items equal to `null` or `\"\"` (empty string) will be considered missing and assigned defaults. Use the `allOf` [compound keyword](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#compound-keywords) to execute `dynamicDefaults` before validation.\n\n```javascript\nvar schema = {\n allOf: [\n {\n dynamicDefaults: {\n ts: 'datetime',\n r: { func: 'randomint', args: { min: 5, max: 100 } },\n id: { func: 'seq', args: { name: 'id' } }\n }\n },\n {\n type: 'object',\n properties: {\n ts: {\n type: 'string'\n },\n r: {\n type: 'number',\n minimum: 5,\n exclusiveMaximum: 100\n },\n id: {\n type: 'integer',\n minimum: 0\n }\n }\n }\n ]\n};\n\nvar data = { ts: '', r: null };\najv.validate(data); // true\ndata; // { ts: '2016-12-01T22:07:28.829Z', r: 25, id: 0 }\n```\n\nYou can add your own dynamic default function to be recognised by this keyword:\n\n```javascript\nvar uuid = require('uuid');\n\nfunction uuidV4() { return uuid.v4(); }\n\nvar definition = require('ajv-keywords').get('dynamicDefaults').definition;\n// or require('ajv-keywords/keywords/dynamicDefaults').definition;\ndefinition.DEFAULTS.uuid = uuidV4;\n\nvar schema = {\n dynamicDefaults: { id: 'uuid' },\n properties: { id: { type: 'string', format: 'uuid' } }\n};\n\nvar data = {};\najv.validate(schema, data); // true\ndata; // { id: 'a1183fbe-697b-4030-9bcc-cfeb282a9150' };\n\nvar data1 = {};\najv.validate(schema, data1); // true\ndata1; // { id: '5b008de7-1669-467a-a5c6-70fa244d7209' }\n```\n\nYou also can define dynamic default that accepts parameters, e.g. version of uuid:\n\n```javascript\nvar uuid = require('uuid');\n\nfunction getUuid(args) {\n var version = 'v' + (arvs && args.v || 4);\n return function() {\n return uuid[version]();\n };\n}\n\nvar definition = require('ajv-keywords').get('dynamicDefaults').definition;\ndefinition.DEFAULTS.uuid = getUuid;\n\nvar schema = {\n dynamicDefaults: {\n id1: 'uuid', // v4\n id2: { func: 'uuid', v: 4 }, // v4\n id3: { func: 'uuid', v: 1 } // v1\n }\n};\n```\n\n## License\n\n[MIT](https://github.com/epoberezkin/ajv-keywords/blob/master/LICENSE)\n# node-tar\n\n[](https://travis-ci.org/npm/node-tar)\n\n[Fast](./benchmarks) and full-featured Tar for Node.js\n\nThe API is designed to mimic the behavior of `tar(1)` on unix systems.\nIf you are familiar with how tar works, most of this will hopefully be\nstraightforward for you. If not, then hopefully this module can teach\nyou useful unix skills that may come in handy someday :)\n\n## Background\n\nA \"tar file\" or \"tarball\" is an archive of file system entries\n(directories, files, links, etc.) The name comes from \"tape archive\".\nIf you run `man tar` on almost any Unix command line, you'll learn\nquite a bit about what it can do, and its history.\n\nTar has 5 main top-level commands:\n\n* `c` Create an archive\n* `r` Replace entries within an archive\n* `u` Update entries within an archive (ie, replace if they're newer)\n* `t` List out the contents of an archive\n* `x` Extract an archive to disk\n\nThe other flags and options modify how this top level function works.\n\n## High-Level API\n\nThese 5 functions are the high-level API. All of them have a\nsingle-character name (for unix nerds familiar with `tar(1)`) as well\nas a long name (for everyone else).\n\nAll the high-level functions take the following arguments, all three\nof which are optional and may be omitted.\n\n1. `options` - An optional object specifying various options\n2. `paths` - An array of paths to add or extract\n3. `callback` - Called when the command is completed, if async. (If\n sync or no file specified, providing a callback throws a\n `TypeError`.)\n\nIf the command is sync (ie, if `options.sync=true`), then the\ncallback is not allowed, since the action will be completed immediately.\n\nIf a `file` argument is specified, and the command is async, then a\n`Promise` is returned. In this case, if async, a callback may be\nprovided which is called when the command is completed.\n\nIf a `file` option is not specified, then a stream is returned. For\n`create`, this is a readable stream of the generated archive. For\n`list` and `extract` this is a writable stream that an archive should\nbe written into. If a file is not specified, then a callback is not\nallowed, because you're already getting a stream to work with.\n\n`replace` and `update` only work on existing archives, and so require\na `file` argument.\n\nSync commands without a file argument return a stream that acts on its\ninput immediately in the same tick. For readable streams, this means\nthat all of the data is immediately available by calling\n`stream.read()`. For writable streams, it will be acted upon as soon\nas it is provided, but this can be at any time.\n\n### Warnings\n\nSome things cause tar to emit a warning, but should usually not cause\nthe entire operation to fail. There are three ways to handle\nwarnings:\n\n1. **Ignore them** (default) Invalid entries won't be put in the\n archive, and invalid entries won't be unpacked. This is usually\n fine, but can hide failures that you might care about.\n2. **Notice them** Add an `onwarn` function to the options, or listen\n to the `'warn'` event on any tar stream. The function will get\n called as `onwarn(message, data)`. Handle as appropriate.\n3. **Explode them.** Set `strict: true` in the options object, and\n `warn` messages will be emitted as `'error'` events instead. If\n there's no `error` handler, this causes the program to crash. If\n used with a promise-returning/callback-taking method, then it'll\n send the error to the promise/callback.\n\n### Examples\n\nThe API mimics the `tar(1)` command line functionality, with aliases\nfor more human-readable option and function names. The goal is that\nif you know how to use `tar(1)` in Unix, then you know how to use\n`require('tar')` in JavaScript.\n\nTo replicate `tar czf my-tarball.tgz files and folders`, you'd do:\n\n```js\ntar.c(\n {\n gzip: <true|gzip options>,\n file: 'my-tarball.tgz'\n },\n ['some', 'files', 'and', 'folders']\n).then(_ => { .. tarball has been created .. })\n```\n\nTo replicate `tar cz files and folders > my-tarball.tgz`, you'd do:\n\n```js\ntar.c( // or tar.create\n {\n gzip: <true|gzip options>\n },\n ['some', 'files', 'and', 'folders']\n).pipe(fs.createWriteStream('my-tarball.tgz'))\n```\n\nTo replicate `tar xf my-tarball.tgz` you'd do:\n\n```js\ntar.x( // or tar.extract(\n {\n file: 'my-tarball.tgz'\n }\n).then(_=> { .. tarball has been dumped in cwd .. })\n```\n\nTo replicate `cat my-tarball.tgz | tar x -C some-dir --strip=1`:\n\n```js\nfs.createReadStream('my-tarball.tgz').pipe(\n tar.x({\n strip: 1,\n C: 'some-dir' // alias for cwd:'some-dir', also ok\n })\n)\n```\n\nTo replicate `tar tf my-tarball.tgz`, do this:\n\n```js\ntar.t({\n file: 'my-tarball.tgz',\n onentry: entry => { .. do whatever with it .. }\n})\n```\n\nTo replicate `cat my-tarball.tgz | tar t` do:\n\n```js\nfs.createReadStream('my-tarball.tgz')\n .pipe(tar.t())\n .on('entry', entry => { .. do whatever with it .. })\n```\n\nTo do anything synchronous, add `sync: true` to the options. Note\nthat sync functions don't take a callback and don't return a promise.\nWhen the function returns, it's already done. Sync methods without a\nfile argument return a sync stream, which flushes immediately. But,\nof course, it still won't be done until you `.end()` it.\n\nTo filter entries, add `filter: <function>` to the options.\nTar-creating methods call the filter with `filter(path, stat)`.\nTar-reading methods (including extraction) call the filter with\n`filter(path, entry)`. The filter is called in the `this`-context of\nthe `Pack` or `Unpack` stream object.\n\nThe arguments list to `tar t` and `tar x` specify a list of filenames\nto extract or list, so they're equivalent to a filter that tests if\nthe file is in the list.\n\nFor those who _aren't_ fans of tar's single-character command names:\n\n```\ntar.c === tar.create\ntar.r === tar.replace (appends to archive, file is required)\ntar.u === tar.update (appends if newer, file is required)\ntar.x === tar.extract\ntar.t === tar.list\n```\n\nKeep reading for all the command descriptions and options, as well as\nthe low-level API that they are built on.\n\n### tar.c(options, fileList, callback) [alias: tar.create]\n\nCreate a tarball archive.\n\nThe `fileList` is an array of paths to add to the tarball. Adding a\ndirectory also adds its children recursively.\n\nAn entry in `fileList` that starts with an `@` symbol is a tar archive\nwhose entries will be added. To add a file that starts with `@`,\nprepend it with `./`.\n\nThe following options are supported:\n\n- `file` Write the tarball archive to the specified filename. If this\n is specified, then the callback will be fired when the file has been\n written, and a promise will be returned that resolves when the file\n is written. If a filename is not specified, then a Readable Stream\n will be returned which will emit the file data. [Alias: `f`]\n- `sync` Act synchronously. If this is set, then any provided file\n will be fully written after the call to `tar.c`. If this is set,\n and a file is not provided, then the resulting stream will already\n have the data ready to `read` or `emit('data')` as soon as you\n request it.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `cwd` The current working directory for creating the archive.\n Defaults to `process.cwd()`. [Alias: `C`]\n- `prefix` A path portion to prefix onto the entries in the archive.\n- `gzip` Set to any truthy value to create a gzipped archive, or an\n object with settings for `zlib.Gzip()` [Alias: `z`]\n- `filter` A function that gets called with `(path, stat)` for each\n entry being added. Return `true` to add the entry to the archive,\n or `false` to omit it.\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths. [Alias: `P`]\n- `mode` The mode to set on the created file archive\n- `noDirRecurse` Do not recursively archive the contents of\n directories. [Alias: `n`]\n- `follow` Set to true to pack the targets of symbolic links. Without\n this option, symbolic links are archived as such. [Alias: `L`, `h`]\n- `noPax` Suppress pax extended headers. Note that this means that\n long paths and linkpaths will be truncated, and large or negative\n numeric values may be interpreted incorrectly.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n [Alias: `m`, `no-mtime`]\n- `mtime` Set to a `Date` object to force a specific `mtime` for\n everything added to the archive. Overridden by `noMtime`.\n\nThe following options are mostly internal, but can be modified in some\nadvanced use cases, such as re-using caches between runs.\n\n- `linkCache` A Map object containing the device and inode value for\n any file whose nlink is > 1, to identify hard links.\n- `statCache` A Map object that caches calls `lstat`.\n- `readdirCache` A Map object that caches calls to `readdir`.\n- `jobs` A number specifying how many concurrent jobs to run.\n Defaults to 4.\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n\n### tar.x(options, fileList, callback) [alias: tar.extract]\n\nExtract a tarball archive.\n\nThe `fileList` is an array of paths to extract from the tarball. If\nno paths are provided, then all the entries are extracted.\n\nIf the archive is gzipped, then tar will detect this and unzip it.\n\nNote that all directories that are created will be forced to be\nwritable, readable, and listable by their owner, to avoid cases where\na directory prevents extraction of child entries by virtue of its\nmode.\n\nMost extraction errors will cause a `warn` event to be emitted. If\nthe `cwd` is missing, or not a directory, then the extraction will\nfail completely.\n\nThe following options are supported:\n\n- `cwd` Extract files relative to the specified directory. Defaults\n to `process.cwd()`. If provided, this must exist and must be a\n directory. [Alias: `C`]\n- `file` The archive file to extract. If not specified, then a\n Writable stream is returned where the archive data should be\n written. [Alias: `f`]\n- `sync` Create files and directories synchronously.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `filter` A function that gets called with `(path, entry)` for each\n entry being unpacked. Return `true` to unpack the entry from the\n archive, or `false` to skip it.\n- `newer` Set to true to keep the existing file on disk if it's newer\n than the file in the archive. [Alias: `keep-newer`,\n `keep-newer-files`]\n- `keep` Do not overwrite existing files. In particular, if a file\n appears more than once in an archive, later copies will not\n overwrite earlier copies. [Alias: `k`, `keep-existing`]\n- `preservePaths` Allow absolute paths, paths containing `..`, and\n extracting through symbolic links. By default, `/` is stripped from\n absolute paths, `..` paths are not extracted, and any file whose\n location would be modified by a symbolic link is not extracted.\n [Alias: `P`]\n- `unlink` Unlink files before creating them. Without this option,\n tar overwrites existing files, which preserves existing hardlinks.\n With this option, existing hardlinks will be broken, as will any\n symlink that would affect the location of an extracted file. [Alias:\n `U`]\n- `strip` Remove the specified number of leading path elements.\n Pathnames with fewer elements will be silently skipped. Note that\n the pathname is edited after applying the filter, but before\n security checks. [Alias: `strip-components`, `stripComponents`]\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `preserveOwner` If true, tar will set the `uid` and `gid` of\n extracted entries to the `uid` and `gid` fields in the archive.\n This defaults to true when run as root, and false otherwise. If\n false, then files and directories will be set with the owner and\n group of the user running the process. This is similar to `-p` in\n `tar(1)`, but ACLs and other system-specific data is never unpacked\n in this implementation, and modes are set by default already.\n [Alias: `p`]\n- `uid` Set to a number to force ownership of all extracted files and\n folders, and all implicitly created directories, to be owned by the\n specified user id, regardless of the `uid` field in the archive.\n Cannot be used along with `preserveOwner`. Requires also setting a\n `gid` option.\n- `gid` Set to a number to force ownership of all extracted files and\n folders, and all implicitly created directories, to be owned by the\n specified group id, regardless of the `gid` field in the archive.\n Cannot be used along with `preserveOwner`. Requires also setting a\n `uid` option.\n- `noMtime` Set to true to omit writing `mtime` value for extracted\n entries. [Alias: `m`, `no-mtime`]\n- `transform` Provide a function that takes an `entry` object, and\n returns a stream, or any falsey value. If a stream is provided,\n then that stream's data will be written instead of the contents of\n the archive entry. If a falsey value is provided, then the entry is\n written to disk as normal. (To exclude items from extraction, use\n the `filter` option described above.)\n- `onentry` A function that gets called with `(entry)` for each entry\n that passes the filter.\n\nThe following options are mostly internal, but can be modified in some\nadvanced use cases, such as re-using caches between runs.\n\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n- `umask` Filter the modes of entries like `process.umask()`.\n- `dmode` Default mode for directories\n- `fmode` Default mode for files\n- `dirCache` A Map object of which directories exist.\n- `maxMetaEntrySize` The maximum size of meta entries that is\n supported. Defaults to 1 MB.\n\nNote that using an asynchronous stream type with the `transform`\noption will cause undefined behavior in sync extractions.\n[MiniPass](http://npm.im/minipass)-based streams are designed for this\nuse case.\n\n### tar.t(options, fileList, callback) [alias: tar.list]\n\nList the contents of a tarball archive.\n\nThe `fileList` is an array of paths to list from the tarball. If\nno paths are provided, then all the entries are listed.\n\nIf the archive is gzipped, then tar will detect this and unzip it.\n\nReturns an event emitter that emits `entry` events with\n`tar.ReadEntry` objects. However, they don't emit `'data'` or `'end'`\nevents. (If you want to get actual readable entries, use the\n`tar.Parse` class instead.)\n\nThe following options are supported:\n\n- `cwd` Extract files relative to the specified directory. Defaults\n to `process.cwd()`. [Alias: `C`]\n- `file` The archive file to list. If not specified, then a\n Writable stream is returned where the archive data should be\n written. [Alias: `f`]\n- `sync` Read the specified file synchronously. (This has no effect\n when a file option isn't specified, because entries are emitted as\n fast as they are parsed from the stream anyway.)\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `filter` A function that gets called with `(path, entry)` for each\n entry being listed. Return `true` to emit the entry from the\n archive, or `false` to skip it.\n- `onentry` A function that gets called with `(entry)` for each entry\n that passes the filter. This is important for when both `file` and\n `sync` are set, because it will be called synchronously.\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n- `noResume` By default, `entry` streams are resumed immediately after\n the call to `onentry`. Set `noResume: true` to suppress this\n behavior. Note that by opting into this, the stream will never\n complete until the entry data is consumed.\n\n### tar.u(options, fileList, callback) [alias: tar.update]\n\nAdd files to an archive if they are newer than the entry already in\nthe tarball archive.\n\nThe `fileList` is an array of paths to add to the tarball. Adding a\ndirectory also adds its children recursively.\n\nAn entry in `fileList` that starts with an `@` symbol is a tar archive\nwhose entries will be added. To add a file that starts with `@`,\nprepend it with `./`.\n\nThe following options are supported:\n\n- `file` Required. Write the tarball archive to the specified\n filename. [Alias: `f`]\n- `sync` Act synchronously. If this is set, then any provided file\n will be fully written after the call to `tar.c`.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `cwd` The current working directory for adding entries to the\n archive. Defaults to `process.cwd()`. [Alias: `C`]\n- `prefix` A path portion to prefix onto the entries in the archive.\n- `gzip` Set to any truthy value to create a gzipped archive, or an\n object with settings for `zlib.Gzip()` [Alias: `z`]\n- `filter` A function that gets called with `(path, stat)` for each\n entry being added. Return `true` to add the entry to the archive,\n or `false` to omit it.\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths. [Alias: `P`]\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n- `noDirRecurse` Do not recursively archive the contents of\n directories. [Alias: `n`]\n- `follow` Set to true to pack the targets of symbolic links. Without\n this option, symbolic links are archived as such. [Alias: `L`, `h`]\n- `noPax` Suppress pax extended headers. Note that this means that\n long paths and linkpaths will be truncated, and large or negative\n numeric values may be interpreted incorrectly.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n [Alias: `m`, `no-mtime`]\n- `mtime` Set to a `Date` object to force a specific `mtime` for\n everything added to the archive. Overridden by `noMtime`.\n\n### tar.r(options, fileList, callback) [alias: tar.replace]\n\nAdd files to an existing archive. Because later entries override\nearlier entries, this effectively replaces any existing entries.\n\nThe `fileList` is an array of paths to add to the tarball. Adding a\ndirectory also adds its children recursively.\n\nAn entry in `fileList` that starts with an `@` symbol is a tar archive\nwhose entries will be added. To add a file that starts with `@`,\nprepend it with `./`.\n\nThe following options are supported:\n\n- `file` Required. Write the tarball archive to the specified\n filename. [Alias: `f`]\n- `sync` Act synchronously. If this is set, then any provided file\n will be fully written after the call to `tar.c`.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `cwd` The current working directory for adding entries to the\n archive. Defaults to `process.cwd()`. [Alias: `C`]\n- `prefix` A path portion to prefix onto the entries in the archive.\n- `gzip` Set to any truthy value to create a gzipped archive, or an\n object with settings for `zlib.Gzip()` [Alias: `z`]\n- `filter` A function that gets called with `(path, stat)` for each\n entry being added. Return `true` to add the entry to the archive,\n or `false` to omit it.\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths. [Alias: `P`]\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n- `noDirRecurse` Do not recursively archive the contents of\n directories. [Alias: `n`]\n- `follow` Set to true to pack the targets of symbolic links. Without\n this option, symbolic links are archived as such. [Alias: `L`, `h`]\n- `noPax` Suppress pax extended headers. Note that this means that\n long paths and linkpaths will be truncated, and large or negative\n numeric values may be interpreted incorrectly.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n [Alias: `m`, `no-mtime`]\n- `mtime` Set to a `Date` object to force a specific `mtime` for\n everything added to the archive. Overridden by `noMtime`.\n\n## Low-Level API\n\n### class tar.Pack\n\nA readable tar stream.\n\nHas all the standard readable stream interface stuff. `'data'` and\n`'end'` events, `read()` method, `pause()` and `resume()`, etc.\n\n#### constructor(options)\n\nThe following options are supported:\n\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `cwd` The current working directory for creating the archive.\n Defaults to `process.cwd()`.\n- `prefix` A path portion to prefix onto the entries in the archive.\n- `gzip` Set to any truthy value to create a gzipped archive, or an\n object with settings for `zlib.Gzip()`\n- `filter` A function that gets called with `(path, stat)` for each\n entry being added. Return `true` to add the entry to the archive,\n or `false` to omit it.\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths.\n- `linkCache` A Map object containing the device and inode value for\n any file whose nlink is > 1, to identify hard links.\n- `statCache` A Map object that caches calls `lstat`.\n- `readdirCache` A Map object that caches calls to `readdir`.\n- `jobs` A number specifying how many concurrent jobs to run.\n Defaults to 4.\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 16 MB.\n- `noDirRecurse` Do not recursively archive the contents of\n directories.\n- `follow` Set to true to pack the targets of symbolic links. Without\n this option, symbolic links are archived as such.\n- `noPax` Suppress pax extended headers. Note that this means that\n long paths and linkpaths will be truncated, and large or negative\n numeric values may be interpreted incorrectly.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n- `mtime` Set to a `Date` object to force a specific `mtime` for\n everything added to the archive. Overridden by `noMtime`.\n\n#### add(path)\n\nAdds an entry to the archive. Returns the Pack stream.\n\n#### write(path)\n\nAdds an entry to the archive. Returns true if flushed.\n\n#### end()\n\nFinishes the archive.\n\n### class tar.Pack.Sync\n\nSynchronous version of `tar.Pack`.\n\n### class tar.Unpack\n\nA writable stream that unpacks a tar archive onto the file system.\n\nAll the normal writable stream stuff is supported. `write()` and\n`end()` methods, `'drain'` events, etc.\n\nNote that all directories that are created will be forced to be\nwritable, readable, and listable by their owner, to avoid cases where\na directory prevents extraction of child entries by virtue of its\nmode.\n\n`'close'` is emitted when it's done writing stuff to the file system.\n\nMost unpack errors will cause a `warn` event to be emitted. If the\n`cwd` is missing, or not a directory, then an error will be emitted.\n\n#### constructor(options)\n\n- `cwd` Extract files relative to the specified directory. Defaults\n to `process.cwd()`. If provided, this must exist and must be a\n directory.\n- `filter` A function that gets called with `(path, entry)` for each\n entry being unpacked. Return `true` to unpack the entry from the\n archive, or `false` to skip it.\n- `newer` Set to true to keep the existing file on disk if it's newer\n than the file in the archive.\n- `keep` Do not overwrite existing files. In particular, if a file\n appears more than once in an archive, later copies will not\n overwrite earlier copies.\n- `preservePaths` Allow absolute paths, paths containing `..`, and\n extracting through symbolic links. By default, `/` is stripped from\n absolute paths, `..` paths are not extracted, and any file whose\n location would be modified by a symbolic link is not extracted.\n- `unlink` Unlink files before creating them. Without this option,\n tar overwrites existing files, which preserves existing hardlinks.\n With this option, existing hardlinks will be broken, as will any\n symlink that would affect the location of an extracted file.\n- `strip` Remove the specified number of leading path elements.\n Pathnames with fewer elements will be silently skipped. Note that\n the pathname is edited after applying the filter, but before\n security checks.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `umask` Filter the modes of entries like `process.umask()`.\n- `dmode` Default mode for directories\n- `fmode` Default mode for files\n- `dirCache` A Map object of which directories exist.\n- `maxMetaEntrySize` The maximum size of meta entries that is\n supported. Defaults to 1 MB.\n- `preserveOwner` If true, tar will set the `uid` and `gid` of\n extracted entries to the `uid` and `gid` fields in the archive.\n This defaults to true when run as root, and false otherwise. If\n false, then files and directories will be set with the owner and\n group of the user running the process. This is similar to `-p` in\n `tar(1)`, but ACLs and other system-specific data is never unpacked\n in this implementation, and modes are set by default already.\n- `win32` True if on a windows platform. Causes behavior where\n filenames containing `<|>?` chars are converted to\n windows-compatible values while being unpacked.\n- `uid` Set to a number to force ownership of all extracted files and\n folders, and all implicitly created directories, to be owned by the\n specified user id, regardless of the `uid` field in the archive.\n Cannot be used along with `preserveOwner`. Requires also setting a\n `gid` option.\n- `gid` Set to a number to force ownership of all extracted files and\n folders, and all implicitly created directories, to be owned by the\n specified group id, regardless of the `gid` field in the archive.\n Cannot be used along with `preserveOwner`. Requires also setting a\n `uid` option.\n- `noMtime` Set to true to omit writing `mtime` value for extracted\n entries.\n- `transform` Provide a function that takes an `entry` object, and\n returns a stream, or any falsey value. If a stream is provided,\n then that stream's data will be written instead of the contents of\n the archive entry. If a falsey value is provided, then the entry is\n written to disk as normal. (To exclude items from extraction, use\n the `filter` option described above.)\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `onentry` A function that gets called with `(entry)` for each entry\n that passes the filter.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n\n### class tar.Unpack.Sync\n\nSynchronous version of `tar.Unpack`.\n\nNote that using an asynchronous stream type with the `transform`\noption will cause undefined behavior in sync unpack streams.\n[MiniPass](http://npm.im/minipass)-based streams are designed for this\nuse case.\n\n### class tar.Parse\n\nA writable stream that parses a tar archive stream. All the standard\nwritable stream stuff is supported.\n\nIf the archive is gzipped, then tar will detect this and unzip it.\n\nEmits `'entry'` events with `tar.ReadEntry` objects, which are\nthemselves readable streams that you can pipe wherever.\n\nEach `entry` will not emit until the one before it is flushed through,\nso make sure to either consume the data (with `on('data', ...)` or\n`.pipe(...)`) or throw it away with `.resume()` to keep the stream\nflowing.\n\n#### constructor(options)\n\nReturns an event emitter that emits `entry` events with\n`tar.ReadEntry` objects.\n\nThe following options are supported:\n\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `filter` A function that gets called with `(path, entry)` for each\n entry being listed. Return `true` to emit the entry from the\n archive, or `false` to skip it.\n- `onentry` A function that gets called with `(entry)` for each entry\n that passes the filter.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n\n#### abort(message, error)\n\nStop all parsing activities. This is called when there are zlib\nerrors. It also emits a warning with the message and error provided.\n\n### class tar.ReadEntry extends [MiniPass](http://npm.im/minipass)\n\nA representation of an entry that is being read out of a tar archive.\n\nIt has the following fields:\n\n- `extended` The extended metadata object provided to the constructor.\n- `globalExtended` The global extended metadata object provided to the\n constructor.\n- `remain` The number of bytes remaining to be written into the\n stream.\n- `blockRemain` The number of 512-byte blocks remaining to be written\n into the stream.\n- `ignore` Whether this entry should be ignored.\n- `meta` True if this represents metadata about the next entry, false\n if it represents a filesystem object.\n- All the fields from the header, extended header, and global extended\n header are added to the ReadEntry object. So it has `path`, `type`,\n `size, `mode`, and so on.\n\n#### constructor(header, extended, globalExtended)\n\nCreate a new ReadEntry object with the specified header, extended\nheader, and global extended header values.\n\n### class tar.WriteEntry extends [MiniPass](http://npm.im/minipass)\n\nA representation of an entry that is being written from the file\nsystem into a tar archive.\n\nEmits data for the Header, and for the Pax Extended Header if one is\nrequired, as well as any body data.\n\nCreating a WriteEntry for a directory does not also create\nWriteEntry objects for all of the directory contents.\n\nIt has the following fields:\n\n- `path` The path field that will be written to the archive. By\n default, this is also the path from the cwd to the file system\n object.\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `myuid` If supported, the uid of the user running the current\n process.\n- `myuser` The `env.USER` string if set, or `''`. Set as the entry\n `uname` field if the file's `uid` matches `this.myuid`.\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 1 MB.\n- `linkCache` A Map object containing the device and inode value for\n any file whose nlink is > 1, to identify hard links.\n- `statCache` A Map object that caches calls `lstat`.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths.\n- `cwd` The current working directory for creating the archive.\n Defaults to `process.cwd()`.\n- `absolute` The absolute path to the entry on the filesystem. By\n default, this is `path.resolve(this.cwd, this.path)`, but it can be\n overridden explicitly.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `win32` True if on a windows platform. Causes behavior where paths\n replace `\\` with `/` and filenames containing the windows-compatible\n forms of `<|>?:` characters are converted to actual `<|>?:` characters\n in the archive.\n- `noPax` Suppress pax extended headers. Note that this means that\n long paths and linkpaths will be truncated, and large or negative\n numeric values may be interpreted incorrectly.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n\n#### constructor(path, options)\n\n`path` is the path of the entry as it is written in the archive.\n\nThe following options are supported:\n\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `maxReadSize` The maximum buffer size for `fs.read()` operations.\n Defaults to 1 MB.\n- `linkCache` A Map object containing the device and inode value for\n any file whose nlink is > 1, to identify hard links.\n- `statCache` A Map object that caches calls `lstat`.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths.\n- `cwd` The current working directory for creating the archive.\n Defaults to `process.cwd()`.\n- `absolute` The absolute path to the entry on the filesystem. By\n default, this is `path.resolve(this.cwd, this.path)`, but it can be\n overridden explicitly.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `win32` True if on a windows platform. Causes behavior where paths\n replace `\\` with `/`.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n- `umask` Set to restrict the modes on the entries in the archive,\n somewhat like how umask works on file creation. Defaults to\n `process.umask()` on unix systems, or `0o22` on Windows.\n\n#### warn(message, data)\n\nIf strict, emit an error with the provided message.\n\nOthewise, emit a `'warn'` event with the provided message and data.\n\n### class tar.WriteEntry.Sync\n\nSynchronous version of tar.WriteEntry\n\n### class tar.WriteEntry.Tar\n\nA version of tar.WriteEntry that gets its data from a tar.ReadEntry\ninstead of from the filesystem.\n\n#### constructor(readEntry, options)\n\n`readEntry` is the entry being read out of another archive.\n\nThe following options are supported:\n\n- `portable` Omit metadata that is system-specific: `ctime`, `atime`,\n `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note\n that `mtime` is still included, because this is necessary other\n time-based operations.\n- `preservePaths` Allow absolute paths. By default, `/` is stripped\n from absolute paths.\n- `strict` Treat warnings as crash-worthy errors. Default false.\n- `onwarn` A function that will get called with `(message, data)` for\n any warnings encountered.\n- `noMtime` Set to true to omit writing `mtime` values for entries.\n Note that this prevents using other mtime-based features like\n `tar.update` or the `keepNewer` option with the resulting tar archive.\n\n### class tar.Header\n\nA class for reading and writing header blocks.\n\nIt has the following fields:\n\n- `nullBlock` True if decoding a block which is entirely composed of\n `0x00` null bytes. (Useful because tar files are terminated by\n at least 2 null blocks.)\n- `cksumValid` True if the checksum in the header is valid, false\n otherwise.\n- `needPax` True if the values, as encoded, will require a Pax\n extended header.\n- `path` The path of the entry.\n- `mode` The 4 lowest-order octal digits of the file mode. That is,\n read/write/execute permissions for world, group, and owner, and the\n setuid, setgid, and sticky bits.\n- `uid` Numeric user id of the file owner\n- `gid` Numeric group id of the file owner\n- `size` Size of the file in bytes\n- `mtime` Modified time of the file\n- `cksum` The checksum of the header. This is generated by adding all\n the bytes of the header block, treating the checksum field itself as\n all ascii space characters (that is, `0x20`).\n- `type` The human-readable name of the type of entry this represents,\n or the alphanumeric key if unknown.\n- `typeKey` The alphanumeric key for the type of entry this header\n represents.\n- `linkpath` The target of Link and SymbolicLink entries.\n- `uname` Human-readable user name of the file owner\n- `gname` Human-readable group name of the file owner\n- `devmaj` The major portion of the device number. Always `0` for\n files, directories, and links.\n- `devmin` The minor portion of the device number. Always `0` for\n files, directories, and links.\n- `atime` File access time.\n- `ctime` File change time.\n\n#### constructor(data, [offset=0])\n\n`data` is optional. It is either a Buffer that should be interpreted\nas a tar Header starting at the specified offset and continuing for\n512 bytes, or a data object of keys and values to set on the header\nobject, and eventually encode as a tar Header.\n\n#### decode(block, offset)\n\nDecode the provided buffer starting at the specified offset.\n\nBuffer length must be greater than 512 bytes.\n\n#### set(data)\n\nSet the fields in the data object.\n\n#### encode(buffer, offset)\n\nEncode the header fields into the buffer at the specified offset.\n\nReturns `this.needPax` to indicate whether a Pax Extended Header is\nrequired to properly encode the specified data.\n\n### class tar.Pax\n\nAn object representing a set of key-value pairs in an Pax extended\nheader entry.\n\nIt has the following fields. Where the same name is used, they have\nthe same semantics as the tar.Header field of the same name.\n\n- `global` True if this represents a global extended header, or false\n if it is for a single entry.\n- `atime`\n- `charset`\n- `comment`\n- `ctime`\n- `gid`\n- `gname`\n- `linkpath`\n- `mtime`\n- `path`\n- `size`\n- `uid`\n- `uname`\n- `dev`\n- `ino`\n- `nlink`\n\n#### constructor(object, global)\n\nSet the fields set in the object. `global` is a boolean that defaults\nto false.\n\n#### encode()\n\nReturn a Buffer containing the header and body for the Pax extended\nheader entry, or `null` if there is nothing to encode.\n\n#### encodeBody()\n\nReturn a string representing the body of the pax extended header\nentry.\n\n#### encodeField(fieldName)\n\nReturn a string representing the key/value encoding for the specified\nfieldName, or `''` if the field is unset.\n\n### tar.Pax.parse(string, extended, global)\n\nReturn a new Pax object created by parsing the contents of the string\nprovided.\n\nIf the `extended` object is set, then also add the fields from that\nobject. (This is necessary because multiple metadata entries can\noccur in sequence.)\n\n### tar.types\n\nA translation table for the `type` field in tar headers.\n\n#### tar.types.name.get(code)\n\nGet the human-readable name for a given alphanumeric code.\n\n#### tar.types.code.get(name)\n\nGet the alphanumeric code for a given human-readable name.\n# hmac-drbg\n[](http://travis-ci.org/indutny/hmac-drbg)\n[](http://badge.fury.io/js/hmac-drbg)\n\nJS-only implementation of [HMAC DRBG][0].\n\n## Usage\n\n```js\nconst DRBG = require('hmac-drbg');\nconst hash = require('hash.js');\n\nconst d = new DRBG({\n hash: hash.sha256,\n entropy: '0123456789abcdef',\n nonce: '0123456789abcdef',\n pers: '0123456789abcdef' /* or `null` */\n});\n\nd.generate(32, 'hex');\n```\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2017.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: http://csrc.nist.gov/groups/ST/toolkit/documents/rng/HashBlockCipherDRBG.pdf\n# ipaddr.js — an IPv6 and IPv4 address manipulation library [](https://travis-ci.org/whitequark/ipaddr.js)\n\nipaddr.js is a small (1.9K minified and gzipped) library for manipulating\nIP addresses in JavaScript environments. It runs on both CommonJS runtimes\n(e.g. [nodejs]) and in a web browser.\n\nipaddr.js allows you to verify and parse string representation of an IP\naddress, match it against a CIDR range or range list, determine if it falls\ninto some reserved ranges (examples include loopback and private ranges),\nand convert between IPv4 and IPv4-mapped IPv6 addresses.\n\n[nodejs]: http://nodejs.org\n\n## Installation\n\n`npm install ipaddr.js`\n\nor\n\n`bower install ipaddr.js`\n\n## API\n\nipaddr.js defines one object in the global scope: `ipaddr`. In CommonJS,\nit is exported from the module:\n\n```js\nvar ipaddr = require('ipaddr.js');\n```\n\nThe API consists of several global methods and two classes: ipaddr.IPv6 and ipaddr.IPv4.\n\n### Global methods\n\nThere are three global methods defined: `ipaddr.isValid`, `ipaddr.parse` and\n`ipaddr.process`. All of them receive a string as a single parameter.\n\nThe `ipaddr.isValid` method returns `true` if the address is a valid IPv4 or\nIPv6 address, and `false` otherwise. It does not throw any exceptions.\n\nThe `ipaddr.parse` method returns an object representing the IP address,\nor throws an `Error` if the passed string is not a valid representation of an\nIP address.\n\nThe `ipaddr.process` method works just like the `ipaddr.parse` one, but it\nautomatically converts IPv4-mapped IPv6 addresses to their IPv4 counterparts\nbefore returning. It is useful when you have a Node.js instance listening\non an IPv6 socket, and the `net.ivp6.bindv6only` sysctl parameter (or its\nequivalent on non-Linux OS) is set to 0. In this case, you can accept IPv4\nconnections on your IPv6-only socket, but the remote address will be mangled.\nUse `ipaddr.process` method to automatically demangle it.\n\n### Object representation\n\nParsing methods return an object which descends from `ipaddr.IPv6` or\n`ipaddr.IPv4`. These objects share some properties, but most of them differ.\n\n#### Shared properties\n\nOne can determine the type of address by calling `addr.kind()`. It will return\neither `\"ipv6\"` or `\"ipv4\"`.\n\nAn address can be converted back to its string representation with `addr.toString()`.\nNote that this method:\n * does not return the original string used to create the object (in fact, there is\n no way of getting that string)\n * returns a compact representation (when it is applicable)\n\nA `match(range, bits)` method can be used to check if the address falls into a\ncertain CIDR range.\nNote that an address can be (obviously) matched only against an address of the same type.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:1234::1\");\nvar range = ipaddr.parse(\"2001:db8::\");\n\naddr.match(range, 32); // => true\n```\n\nAlternatively, `match` can also be called as `match([range, bits])`. In this way,\nit can be used together with the `parseCIDR(string)` method, which parses an IP\naddress together with a CIDR range.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:1234::1\");\n\naddr.match(ipaddr.parseCIDR(\"2001:db8::/32\")); // => true\n```\n\nA `range()` method returns one of predefined names for several special ranges defined\nby IP protocols. The exact names (and their respective CIDR ranges) can be looked up\nin the source: [IPv6 ranges] and [IPv4 ranges]. Some common ones include `\"unicast\"`\n(the default one) and `\"reserved\"`.\n\nYou can match against your own range list by using\n`ipaddr.subnetMatch(address, rangeList, defaultName)` method. It can work with a mix of IPv6 or IPv4 addresses, and accepts a name-to-subnet map as the range list. For example:\n\n```js\nvar rangeList = {\n documentationOnly: [ ipaddr.parse('2001:db8::'), 32 ],\n tunnelProviders: [\n [ ipaddr.parse('2001:470::'), 32 ], // he.net\n [ ipaddr.parse('2001:5c0::'), 32 ] // freenet6\n ]\n};\nipaddr.subnetMatch(ipaddr.parse('2001:470:8:66::1'), rangeList, 'unknown'); // => \"tunnelProviders\"\n```\n\nThe addresses can be converted to their byte representation with `toByteArray()`.\n(Actually, JavaScript mostly does not know about byte buffers. They are emulated with\narrays of numbers, each in range of 0..255.)\n\n```js\nvar bytes = ipaddr.parse('2a00:1450:8007::68').toByteArray(); // ipv6.google.com\nbytes // => [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, <zeroes...>, 0x00, 0x68 ]\n```\n\nThe `ipaddr.IPv4` and `ipaddr.IPv6` objects have some methods defined, too. All of them\nhave the same interface for both protocols, and are similar to global methods.\n\n`ipaddr.IPvX.isValid(string)` can be used to check if the string is a valid address\nfor particular protocol, and `ipaddr.IPvX.parse(string)` is the error-throwing parser.\n\n`ipaddr.IPvX.isValid(string)` uses the same format for parsing as the POSIX `inet_ntoa` function, which accepts unusual formats like `0xc0.168.1.1` or `0x10000000`. The function `ipaddr.IPv4.isValidFourPartDecimal(string)` validates the IPv4 address and also ensures that it is written in four-part decimal format.\n\n[IPv6 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L186\n[IPv4 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L71\n\n#### IPv6 properties\n\nSometimes you will want to convert IPv6 not to a compact string representation (with\nthe `::` substitution); the `toNormalizedString()` method will return an address where\nall zeroes are explicit.\n\nFor example:\n\n```js\nvar addr = ipaddr.parse(\"2001:0db8::0001\");\naddr.toString(); // => \"2001:db8::1\"\naddr.toNormalizedString(); // => \"2001:db8:0:0:0:0:0:1\"\n```\n\nThe `isIPv4MappedAddress()` method will return `true` if this address is an IPv4-mapped\none, and `toIPv4Address()` will return an IPv4 object address.\n\nTo access the underlying binary representation of the address, use `addr.parts`.\n\n```js\nvar addr = ipaddr.parse(\"2001:db8:10::1234:DEAD\");\naddr.parts // => [0x2001, 0xdb8, 0x10, 0, 0, 0, 0x1234, 0xdead]\n```\n\nA IPv6 zone index can be accessed via `addr.zoneId`:\n\n```js\nvar addr = ipaddr.parse(\"2001:db8::%eth0\");\naddr.zoneId // => 'eth0'\n```\n\n#### IPv4 properties\n\n`toIPv4MappedAddress()` will return a corresponding IPv4-mapped IPv6 address.\n\nTo access the underlying representation of the address, use `addr.octets`.\n\n```js\nvar addr = ipaddr.parse(\"192.168.1.1\");\naddr.octets // => [192, 168, 1, 1]\n```\n\n`prefixLengthFromSubnetMask()` will return a CIDR prefix length for a valid IPv4 netmask or\nfalse if the netmask is not valid.\n\n```js\nipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask() == 28\nipaddr.IPv4.parse('255.192.164.0').prefixLengthFromSubnetMask() == null\n```\n\n`subnetMaskFromPrefixLength()` will return an IPv4 netmask for a valid CIDR prefix length.\n\n```js\nipaddr.IPv4.subnetMaskFromPrefixLength(24) == \"255.255.255.0\"\nipaddr.IPv4.subnetMaskFromPrefixLength(29) == \"255.255.255.248\"\n```\n\n`broadcastAddressFromCIDR()` will return the broadcast address for a given IPv4 interface and netmask in CIDR notation.\n```js\nipaddr.IPv4.broadcastAddressFromCIDR(\"172.0.0.1/24\") == \"172.0.0.255\"\n```\n`networkAddressFromCIDR()` will return the network address for a given IPv4 interface and netmask in CIDR notation.\n```js\nipaddr.IPv4.networkAddressFromCIDR(\"172.0.0.1/24\") == \"172.0.0.0\"\n```\n\n#### Conversion\n\nIPv4 and IPv6 can be converted bidirectionally to and from network byte order (MSB) byte arrays.\n\nThe `fromByteArray()` method will take an array and create an appropriate IPv4 or IPv6 object\nif the input satisfies the requirements. For IPv4 it has to be an array of four 8-bit values,\nwhile for IPv6 it has to be an array of sixteen 8-bit values.\n\nFor example:\n```js\nvar addr = ipaddr.fromByteArray([0x7f, 0, 0, 1]);\naddr.toString(); // => \"127.0.0.1\"\n```\n\nor\n\n```js\nvar addr = ipaddr.fromByteArray([0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])\naddr.toString(); // => \"2001:db8::1\"\n```\n\nBoth objects also offer a `toByteArray()` method, which returns an array in network byte order (MSB).\n\nFor example:\n```js\nvar addr = ipaddr.parse(\"127.0.0.1\");\naddr.toByteArray(); // => [0x7f, 0, 0, 1]\n```\n\nor\n\n```js\nvar addr = ipaddr.parse(\"2001:db8::1\");\naddr.toByteArray(); // => [0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]\n```\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![test][test]][test-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n\n<div align=\"center\">\n <a href=\"http://json-schema.org\">\n <img width=\"160\" height=\"160\"\n src=\"https://raw.githubusercontent.com/webpack-contrib/schema-utils/master/docs/logo.png\">\n </a>\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\"\n src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n <h1>Schema Utils</h1>\n</div>\n\n<h2 align=\"center\">Install</h2>\n\n```bash\nnpm i schema-utils\n```\n\n<h2 align=\"center\">Usage</h2>\n\n### `validateOptions`\n\n**`schema.json`**\n```js\n{\n \"type\": \"object\",\n \"properties\": {\n // Options...\n },\n \"additionalProperties\": false\n}\n```\n\n#### Error Messages (Custom)\n\n**`schema.json`**\n```js\n{\n \"type\": \"object\",\n \"properties\": {\n \"option\": {\n \"type\": [ \"boolean\" ]\n }\n },\n // Overrides the default err.message for option\n \"errorMessage\": {\n \"option\": \"should be {Boolean} (https:/github.com/org/repo#anchor)\"\n }\n \"additionalProperties\": false\n}\n```\n\n```js\nimport schema from 'path/to/schema.json'\nimport validateOptions from 'schema-utils'\n\nvalidateOptions(schema, options, 'Loader/Plugin Name')\n```\n\n<h2 align=\"center\">Examples</h2>\n\n**schema.json**\n```json\n{\n \"type\": \"object\",\n \"properties\": {\n \"name\": {\n \"type\": \"string\"\n },\n \"test\": {\n \"anyOf\": [\n { \"type\": \"array\" },\n { \"type\": \"string\" },\n { \"instanceof\": \"RegExp\" }\n ]\n },\n \"transform\": {\n \"instanceof\": \"Function\"\n },\n \"sourceMap\": {\n \"type\": \"boolean\"\n }\n },\n \"additionalProperties\": false\n}\n```\n\n### `Loader`\n\n```js\nimport { getOptions } from 'loader-utils'\nimport validateOptions from 'schema-utils'\n\nimport schema from 'path/to/schema.json'\n\nfunction loader (src, map) {\n const options = getOptions(this) || {}\n\n validateOptions(schema, options, 'Loader Name')\n\n // Code...\n}\n```\n\n### `Plugin`\n\n```js\nimport validateOptions from 'schema-utils'\n\nimport schema from 'path/to/schema.json'\n\nclass Plugin {\n constructor (options) {\n validateOptions(schema, options, 'Plugin Name')\n\n this.options = options\n }\n\n apply (compiler) {\n // Code...\n }\n}\n```\n\n[npm]: https://img.shields.io/npm/v/schema-utils.svg\n[npm-url]: https://npmjs.com/package/schema-utils\n\n[node]: https://img.shields.io/node/v/schema-utils.svg\n[node-url]: https://nodejs.org\n\n[deps]: https://david-dm.org/webpack-contrib/schema-utils.svg\n[deps-url]: https://david-dm.org/webpack-contrib/schema-utils\n\n[test]: http://img.shields.io/travis/webpack-contrib/schema-utils.svg\n[test-url]: https://travis-ci.org/webpack-contrib/schema-utils\n\n[cover]: https://codecov.io/gh/webpack-contrib/schema-utils/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack-contrib/schema-utils\n\n[chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg\n[chat-url]: https://gitter.im/webpack/webpack\n# browserify-aes\n[](https://travis-ci.org/crypto-browserify/browserify-aes)\n\nNode style aes for use in the browser.\nImplements:\n\n - createCipher\n - createCipheriv\n - createDecipher\n - createDecipheriv\n - getCiphers\n\nIn node.js, the `crypto` implementation is used, in browsers it falls back to a pure JavaScript implementation.\n\nMuch of this library has been taken from the aes implementation in [triplesec](https://github.com/keybase/triplesec), a partial derivation of [crypto-js](https://code.google.com/p/crypto-js/).\n\n`EVP_BytesToKey` is a straight up port of the same function from OpenSSL as there is literally no documenation on it beyond it using 'undocumented extensions' for longer keys.\n\n## LICENSE [MIT](LICENSE)\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# path-parse [](https://travis-ci.org/jbgutierrez/path-parse)\n\n> Node.js [`path.parse(pathString)`](https://nodejs.org/api/path.html#path_path_parse_pathstring) [ponyfill](https://ponyfill.com).\n\n## Install\n\n```\n$ npm install --save path-parse\n```\n\n## Usage\n\n```js\nvar pathParse = require('path-parse');\n\npathParse('/home/user/dir/file.txt');\n//=> {\n// root : \"/\",\n// dir : \"/home/user/dir\",\n// base : \"file.txt\",\n// ext : \".txt\",\n// name : \"file\"\n// }\n```\n\n## API\n\nSee [`path.parse(pathString)`](https://nodejs.org/api/path.html#path_path_parse_pathstring) docs.\n\n### pathParse(path)\n\n### pathParse.posix(path)\n\nThe Posix specific version.\n\n### pathParse.win32(path)\n\nThe Windows specific version.\n\n## License\n\nMIT © [Javier Blanco](http://jbgutierrez.info)\n# is-descriptor [](https://www.npmjs.com/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://travis-ci.org/jonschlinkert/is-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-descriptor\n```\n\n## Usage\n\n```js\nvar isDescriptor = require('is-descriptor');\n\nisDescriptor({value: 'foo'})\n//=> true\nisDescriptor({get: function(){}, set: function(){}})\n//=> true\nisDescriptor({get: 'foo', set: function(){}})\n//=> false\n```\n\nYou may also check for a descriptor by passing an object as the first argument and property name (`string`) as the second argument.\n\n```js\nvar obj = {};\nobj.foo = 'abc';\n\nObject.defineProperty(obj, 'bar', {\n value: 'xyz'\n});\n\nisDescriptor(obj, 'foo');\n//=> true\nisDescriptor(obj, 'bar');\n//=> true\n```\n\n## Examples\n\n### value type\n\n`false` when not an object\n\n```js\nisDescriptor('a');\n//=> false\nisDescriptor(null);\n//=> false\nisDescriptor([]);\n//=> false\n```\n\n### data descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({value: 'foo'});\n//=> true\nisDescriptor({value: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', get: noop});\n//=> false\nisDescriptor({get: noop, value: noop});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({value: 'foo', enumerable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', configurable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', writable: 'foo'});\n//=> false\n```\n\n### accessor descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({get: noop, set: noop});\n//=> true\nisDescriptor({get: noop});\n//=> true\nisDescriptor({set: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({get: noop, set: noop, bar: 'baz'});\n//=> false\nisDescriptor({get: noop, writable: true});\n//=> false\nisDescriptor({get: noop, value: true});\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisDescriptor({get: noop, set: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: noop});\n//=> false\nisDescriptor({get: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: 'baz'});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({get: noop, set: noop, enumerable: 'foo'});\n//=> false\nisDescriptor({set: noop, configurable: 'foo'});\n//=> false\nisDescriptor({get: noop, configurable: 'foo'});\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 24 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\n# core-js\n\n[](https://gitter.im/zloirock/core-js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://www.npmjs.com/package/core-js) [](http://npm-stat.com/charts.html?package=core-js&author=&from=2014-11-18) [](https://travis-ci.org/zloirock/core-js) [](https://david-dm.org/zloirock/core-js?type=dev)\n\n## As advertising: the author is looking for a good job -)\n\n## [core-js@3, babel and a look into the future](https://github.com/zloirock/core-js/tree/master/docs/2019-03-19-core-js-3-babel-and-a-look-into-the-future.md)\n\n## Open Collective Sponsors\n\n[**Become a sponsor**](https://opencollective.com/core-js#sponsor) and get your logo with a link to your site on our README on GitHub and NPM.\n\n<a href=\"https://opencollective.com/core-js/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/0/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/1/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/2/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/3/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/4/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/5/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/6/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/7/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/8/avatar.svg\"></a><a href=\"https://opencollective.com/core-js/sponsor/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/core-js/sponsor/9/avatar.svg\"></a>\n\n## Patreon Sponsors\n\n[**Become a sponsor**](https://www.patreon.com/zloirock) and get your logo with a link to your site on our README on GitHub and NPM.\n\n---\n\nModular standard library for JavaScript. Includes polyfills for [ECMAScript up to 2019](https://github.com/zloirock/core-js#ecmascript): [promises](https://github.com/zloirock/core-js#ecmascript-promise), [symbols](https://github.com/zloirock/core-js#ecmascript-symbol), [collections](https://github.com/zloirock/core-js#ecmascript-collections), iterators, [typed arrays](https://github.com/zloirock/core-js#ecmascript-typed-arrays), many other features, [ECMAScript proposals](https://github.com/zloirock/core-js#ecmascript-proposals), [some cross-platform WHATWG / W3C features and proposals](#web-standards) like [`URL`](https://github.com/zloirock/core-js#url-and-urlsearchparams). You can load only required features or use it without global namespace pollution.\n\n[*Example*](http://goo.gl/a2xexl):\n```js\nimport 'core-js'; // <- at the top of your entry point\n\nArray.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\n[1, [2, 3], [4, [5]]].flat(2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n*You can load only required features*:\n```js\nimport 'core-js/features/array/from'; // <- at the top of your entry point\nimport 'core-js/features/array/flat'; // <- at the top of your entry point\nimport 'core-js/features/set'; // <- at the top of your entry point\nimport 'core-js/features/promise'; // <- at the top of your entry point\n\nArray.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\n[1, [2, 3], [4, [5]]].flat(2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n*Or use it without global namespace pollution*:\n```js\nimport from from 'core-js-pure/features/array/from';\nimport flat from 'core-js-pure/features/array/flat';\nimport Set from 'core-js-pure/features/set';\nimport Promise from 'core-js-pure/features/promise';\n\nfrom(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]\nflat([1, [2, 3], [4, [5]]], 2); // => [1, 2, 3, 4, 5]\nPromise.resolve(32).then(x => console.log(x)); // => 32\n```\n\n**It's a global version (first 2 examples), for more info see [`core-js` documentation](https://github.com/zloirock/core-js/blob/master/README.md).**\n# hash-base\n\n[](https://www.npmjs.org/package/hash-base)\n[](https://travis-ci.org/crypto-browserify/hash-base)\n[](https://david-dm.org/crypto-browserify/hash-base#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nAbstract base class to inherit from if you want to create streams implementing the same API as node crypto [Hash][1] (for [Cipher][2] / [Decipher][3] check [crypto-browserify/cipher-base][4]).\n\n## Example\n\n```js\nconst HashBase = require('hash-base')\nconst inherits = require('inherits')\n\n// our hash function is XOR sum of all bytes\nfunction MyHash () {\n HashBase.call(this, 1) // in bytes\n\n this._sum = 0x00\n}\n\ninherits(MyHash, HashBase)\n\nMyHash.prototype._update = function () {\n for (let i = 0; i < this._block.length; ++i) this._sum ^= this._block[i]\n}\n\nMyHash.prototype._digest = function () {\n return this._sum\n}\n\nconst data = Buffer.from([ 0x00, 0x42, 0x01 ])\nconst hash = new MyHash().update(data).digest()\nconsole.log(hash) // => 67\n```\nYou also can check [source code](index.js) or [crypto-browserify/md5.js][5]\n\n## LICENSE\n\nMIT\n\n[1]: https://nodejs.org/api/crypto.html#crypto_class_hash\n[2]: https://nodejs.org/api/crypto.html#crypto_class_cipher\n[3]: https://nodejs.org/api/crypto.html#crypto_class_decipher\n[4]: https://github.com/crypto-browserify/cipher-base\n[5]: https://github.com/crypto-browserify/md5.js\n# dom-walk\n\niteratively walk a DOM node\n\n## Example\n\n``` js\nvar walk = require(\"dom-walk\")\n\nwalk(document.body.childNodes, function (node) {\n console.log(\"node\", node)\n})\n```\n\n## Installation\n\n`npm install dom-walk`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\nbase64-js\n=========\n\n`base64-js` does basic base64 encoding/decoding in pure JS.\n\n[](http://travis-ci.org/beatgammit/base64-js)\n\n[](https://ci.testling.com/beatgammit/base64-js)\n\nMany browsers already have base64 encoding/decoding functionality, but it is for text data, not all-purpose binary data.\n\nSometimes encoding/decoding binary data in the browser is useful, and that is what this module does.\n\n## install\n\nWith [npm](https://npmjs.org) do:\n\n`npm install base64-js` and `var base64js = require('base64-js')`\n\nFor use in web browsers do:\n\n`<script src=\"base64js.min.js\"></script>`\n\n## methods\n\n`base64js` has three exposed functions, `byteLength`, `toByteArray` and `fromByteArray`, which both take a single argument.\n\n* `byteLength` - Takes a base64 string and returns length of byte array\n* `toByteArray` - Takes a base64 string and returns a byte array\n* `fromByteArray` - Takes a byte array and returns a base64 string\n\n## license\n\nMIT\n# node-portfinder [](https://travis-ci.org/indexzero/node-portfinder)\n\n## Installation\n\n``` bash\n $ [sudo] npm install portfinder\n```\n\n## Usage\nThe `portfinder` module has a simple interface:\n\n``` js\n var portfinder = require('portfinder');\n\n portfinder.getPort(function (err, port) {\n //\n // `port` is guaranteed to be a free port\n // in this scope.\n //\n });\n```\n\nOr with promise (if Promise are supported) :\n\n``` js\n const portfinder = require('portfinder');\n\n portfinder.getPortPromise()\n .then((port) => {\n //\n // `port` is guaranteed to be a free port\n // in this scope.\n //\n })\n .catch((err) => {\n //\n // Could not get a free port, `err` contains the reason.\n //\n });\n```\n\nIf `portfinder.getPortPromise()` is called on a Node version without Promise (<4), it will throw an Error unless [Bluebird](http://bluebirdjs.com/docs/getting-started.html) or any Promise pollyfill is used.\n\n### Ports search scope \n\nBy default `portfinder` will start searching from `8000` and scan until maximum port number (`65535`) is reached. \n\nYou can change this globally by setting:\n\n```js\nportfinder.basePort = 3000; // default: 8000\nportfinder.highestPort = 3333; // default: 65535\n```\n\nor by passing optional options object on each invocation:\n\n```js\nportfinder.getPort({\n port: 3000, // minimum port\n stopPort: 3333 // maximum port\n}, callback);\n```\n\n## Run Tests\n``` bash\n $ npm test\n```\n\n#### Author: [Charlie Robbins][0]\n#### Maintainer: [Erik Trom][1]\n#### License: MIT/X11\n[0]: http://nodejitsu.com\n[1]: https://github.com/eriktrom\n# lru cache\n\nA cache object that deletes the least-recently-used items.\n\n[](https://travis-ci.org/isaacs/node-lru-cache) [](https://coveralls.io/github/isaacs/node-lru-cache)\n\n## Installation:\n\n```javascript\nnpm install lru-cache --save\n```\n\n## Usage:\n\n```javascript\nvar LRU = require(\"lru-cache\")\n , options = { max: 500\n , length: function (n, key) { return n * 2 + key.length }\n , dispose: function (key, n) { n.close() }\n , maxAge: 1000 * 60 * 60 }\n , cache = new LRU(options)\n , otherCache = new LRU(50) // sets just the max size\n\ncache.set(\"key\", \"value\")\ncache.get(\"key\") // \"value\"\n\n// non-string keys ARE fully supported\n// but note that it must be THE SAME object, not\n// just a JSON-equivalent object.\nvar someObject = { a: 1 }\ncache.set(someObject, 'a value')\n// Object keys are not toString()-ed\ncache.set('[object Object]', 'a different value')\nassert.equal(cache.get(someObject), 'a value')\n// A similar object with same keys/values won't work,\n// because it's a different object identity\nassert.equal(cache.get({ a: 1 }), undefined)\n\ncache.reset() // empty the cache\n```\n\nIf you put more stuff in it, then items will fall out.\n\nIf you try to put an oversized thing in it, then it'll fall out right\naway.\n\n## Options\n\n* `max` The maximum size of the cache, checked by applying the length\n function to all values in the cache. Not setting this is kind of\n silly, since that's the whole purpose of this lib, but it defaults\n to `Infinity`. Setting it to a non-number or negative number will\n throw a `TypeError`. Setting it to 0 makes it be `Infinity`.\n* `maxAge` Maximum age in ms. Items are not pro-actively pruned out\n as they age, but if you try to get an item that is too old, it'll\n drop it and return undefined instead of giving it to you.\n Setting this to a negative value will make everything seem old!\n Setting it to a non-number will throw a `TypeError`.\n* `length` Function that is used to calculate the length of stored\n items. If you're storing strings or buffers, then you probably want\n to do something like `function(n, key){return n.length}`. The default is\n `function(){return 1}`, which is fine if you want to store `max`\n like-sized things. The item is passed as the first argument, and\n the key is passed as the second argumnet.\n* `dispose` Function that is called on items when they are dropped\n from the cache. This can be handy if you want to close file\n descriptors or do other cleanup tasks when items are no longer\n accessible. Called with `key, value`. It's called *before*\n actually removing the item from the internal cache, so if you want\n to immediately put it back in, you'll have to do that in a\n `nextTick` or `setTimeout` callback or it won't do anything.\n* `stale` By default, if you set a `maxAge`, it'll only actually pull\n stale items out of the cache when you `get(key)`. (That is, it's\n not pre-emptively doing a `setTimeout` or anything.) If you set\n `stale:true`, it'll return the stale value before deleting it. If\n you don't set this, then it'll return `undefined` when you try to\n get a stale entry, as if it had already been deleted.\n* `noDisposeOnSet` By default, if you set a `dispose()` method, then\n it'll be called whenever a `set()` operation overwrites an existing\n key. If you set this option, `dispose()` will only be called when a\n key falls out of the cache, not when it is overwritten.\n* `updateAgeOnGet` When using time-expiring entries with `maxAge`,\n setting this to `true` will make each item's effective time update\n to the current time whenever it is retrieved from cache, causing it\n to not expire. (It can still fall out of cache based on recency of\n use, of course.)\n\n## API\n\n* `set(key, value, maxAge)`\n* `get(key) => value`\n\n Both of these will update the \"recently used\"-ness of the key.\n They do what you think. `maxAge` is optional and overrides the\n cache `maxAge` option if provided.\n\n If the key is not found, `get()` will return `undefined`.\n\n The key and val can be any value.\n\n* `peek(key)`\n\n Returns the key value (or `undefined` if not found) without\n updating the \"recently used\"-ness of the key.\n\n (If you find yourself using this a lot, you *might* be using the\n wrong sort of data structure, but there are some use cases where\n it's handy.)\n\n* `del(key)`\n\n Deletes a key out of the cache.\n\n* `reset()`\n\n Clear the cache entirely, throwing away all values.\n\n* `has(key)`\n\n Check if a key is in the cache, without updating the recent-ness\n or deleting it for being stale.\n\n* `forEach(function(value,key,cache), [thisp])`\n\n Just like `Array.prototype.forEach`. Iterates over all the keys\n in the cache, in order of recent-ness. (Ie, more recently used\n items are iterated over first.)\n\n* `rforEach(function(value,key,cache), [thisp])`\n\n The same as `cache.forEach(...)` but items are iterated over in\n reverse order. (ie, less recently used items are iterated over\n first.)\n\n* `keys()`\n\n Return an array of the keys in the cache.\n\n* `values()`\n\n Return an array of the values in the cache.\n\n* `length`\n\n Return total length of objects in cache taking into account\n `length` options function.\n\n* `itemCount`\n\n Return total quantity of objects currently in cache. Note, that\n `stale` (see options) items are returned as part of this item\n count.\n\n* `dump()`\n\n Return an array of the cache entries ready for serialization and usage\n with 'destinationCache.load(arr)`.\n\n* `load(cacheEntriesArray)`\n\n Loads another cache entries array, obtained with `sourceCache.dump()`,\n into the cache. The destination cache is reset before loading new entries\n\n* `prune()`\n\n Manually iterates over the entire cache proactively pruning old entries\n# http-proxy-middleware\n\n[](https://travis-ci.org/chimurai/http-proxy-middleware)\n[](https://coveralls.io/r/chimurai/http-proxy-middleware)\n[](https://david-dm.org/chimurai/http-proxy-middleware#info=dependencies)\n[](https://snyk.io/test/npm/http-proxy-middleware)\n[](https://github.com/prettier/prettier)\n\nNode.js proxying made simple. Configure proxy middleware with ease for [connect](https://github.com/senchalabs/connect), [express](https://github.com/strongloop/express), [browser-sync](https://github.com/BrowserSync/browser-sync) and [many more](#compatible-servers).\n\nPowered by the popular Nodejitsu [`http-proxy`](https://github.com/nodejitsu/node-http-proxy). [](https://github.com/nodejitsu/node-http-proxy)\n\n## TL;DR\n\nProxy `/api` requests to `http://www.example.org`\n\n```javascript\nvar express = require('express')\nvar proxy = require('http-proxy-middleware')\n\nvar app = express()\n\napp.use('/api', proxy({ target: 'http://www.example.org', changeOrigin: true }))\napp.listen(3000)\n\n// http://localhost:3000/api/foo/bar -> http://www.example.org/api/foo/bar\n```\n\n_All_ `http-proxy` [options](https://github.com/nodejitsu/node-http-proxy#options) can be used, along with some extra `http-proxy-middleware` [options](#options).\n\n:bulb: **Tip:** Set the option `changeOrigin` to `true` for [name-based virtual hosted sites](http://en.wikipedia.org/wiki/Virtual_hosting#Name-based).\n\n## Table of Contents\n\n<!-- MarkdownTOC autolink=true bracket=round depth=2 -->\n\n- [Install](#install)\n- [Core concept](#core-concept)\n- [Example](#example)\n- [Context matching](#context-matching)\n- [Options](#options)\n - [http-proxy-middleware options](#http-proxy-middleware-options)\n - [http-proxy events](#http-proxy-events)\n - [http-proxy options](#http-proxy-options)\n- [Shorthand](#shorthand)\n - [app.use\\(path, proxy\\)](#appusepath-proxy)\n- [WebSocket](#websocket)\n - [External WebSocket upgrade](#external-websocket-upgrade)\n- [Working examples](#working-examples)\n- [Recipes](#recipes)\n- [Compatible servers](#compatible-servers)\n- [Tests](#tests)\n- [Changelog](#changelog)\n- [License](#license)\n\n<!-- /MarkdownTOC -->\n\n## Install\n\n```javascript\n$ npm install --save-dev http-proxy-middleware\n```\n\n## Core concept\n\nProxy middleware configuration.\n\n#### proxy([context,] config)\n\n```javascript\nvar proxy = require('http-proxy-middleware')\n\nvar apiProxy = proxy('/api', { target: 'http://www.example.org' })\n// \\____/ \\_____________________________/\n// | |\n// context options\n\n// 'apiProxy' is now ready to be used as middleware in a server.\n```\n\n- **context**: Determine which requests should be proxied to the target host.\n (more on [context matching](#context-matching))\n- **options.target**: target host to proxy to. _(protocol + host)_\n\n(full list of [`http-proxy-middleware` configuration options](#options))\n\n#### proxy(uri [, config])\n\n```javascript\n// shorthand syntax for the example above:\nvar apiProxy = proxy('http://www.example.org/api')\n```\n\nMore about the [shorthand configuration](#shorthand).\n\n## Example\n\nAn example with `express` server.\n\n```javascript\n// include dependencies\nvar express = require('express')\nvar proxy = require('http-proxy-middleware')\n\n// proxy middleware options\nvar options = {\n target: 'http://www.example.org', // target host\n changeOrigin: true, // needed for virtual hosted sites\n ws: true, // proxy websockets\n pathRewrite: {\n '^/api/old-path': '/api/new-path', // rewrite path\n '^/api/remove/path': '/path' // remove base path\n },\n router: {\n // when request.headers.host == 'dev.localhost:3000',\n // override target 'http://www.example.org' to 'http://localhost:8000'\n 'dev.localhost:3000': 'http://localhost:8000'\n }\n}\n\n// create the proxy (without context)\nvar exampleProxy = proxy(options)\n\n// mount `exampleProxy` in web server\nvar app = express()\napp.use('/api', exampleProxy)\napp.listen(3000)\n```\n\n## Context matching\n\nProviding an alternative way to decide which requests should be proxied; In case you are not able to use the server's [`path` parameter](http://expressjs.com/en/4x/api.html#app.use) to mount the proxy or when you need more flexibility.\n\n[RFC 3986 `path`](https://tools.ietf.org/html/rfc3986#section-3.3) is used for context matching.\n\n```\n foo://example.com:8042/over/there?name=ferret#nose\n \\_/ \\______________/\\_________/ \\_________/ \\__/\n | | | | |\n scheme authority path query fragment\n```\n\n- **path matching**\n\n - `proxy({...})` - matches any path, all requests will be proxied.\n - `proxy('/', {...})` - matches any path, all requests will be proxied.\n - `proxy('/api', {...})` - matches paths starting with `/api`\n\n- **multiple path matching**\n\n - `proxy(['/api', '/ajax', '/someotherpath'], {...})`\n\n- **wildcard path matching**\n\n For fine-grained control you can use wildcard matching. Glob pattern matching is done by _micromatch_. Visit [micromatch](https://www.npmjs.com/package/micromatch) or [glob](https://www.npmjs.com/package/glob) for more globbing examples.\n\n - `proxy('**', {...})` matches any path, all requests will be proxied.\n - `proxy('**/*.html', {...})` matches any path which ends with `.html`\n - `proxy('/*.html', {...})` matches paths directly under path-absolute\n - `proxy('/api/**/*.html', {...})` matches requests ending with `.html` in the path of `/api`\n - `proxy(['/api/**', '/ajax/**'], {...})` combine multiple patterns\n - `proxy(['/api/**', '!**/bad.json'], {...})` exclusion\n\n **Note**: In multiple path matching, you cannot use string paths and wildcard paths together.\n\n- **custom matching**\n\n For full control you can provide a custom function to determine which requests should be proxied or not.\n\n ```javascript\n /**\n * @return {Boolean}\n */\n var filter = function(pathname, req) {\n return pathname.match('^/api') && req.method === 'GET'\n }\n\n var apiProxy = proxy(filter, { target: 'http://www.example.org' })\n ```\n\n## Options\n\n### http-proxy-middleware options\n\n- **option.pathRewrite**: object/function, rewrite target's url path. Object-keys will be used as _RegExp_ to match paths.\n\n ```javascript\n // rewrite path\n pathRewrite: {'^/old/api' : '/new/api'}\n\n // remove path\n pathRewrite: {'^/remove/api' : ''}\n\n // add base path\n pathRewrite: {'^/' : '/basepath/'}\n\n // custom rewriting\n pathRewrite: function (path, req) { return path.replace('/api', '/base/api') }\n ```\n\n- **option.router**: object/function, re-target `option.target` for specific requests.\n\n ```javascript\n // Use `host` and/or `path` to match requests. First match will be used.\n // The order of the configuration matters.\n router: {\n 'integration.localhost:3000' : 'http://localhost:8001', // host only\n 'staging.localhost:3000' : 'http://localhost:8002', // host only\n 'localhost:3000/api' : 'http://localhost:8003', // host + path\n '/rest' : 'http://localhost:8004' // path only\n }\n\n // Custom router function\n router: function(req) {\n return 'http://localhost:8004';\n }\n ```\n\n- **option.logLevel**: string, ['debug', 'info', 'warn', 'error', 'silent']. Default: `'info'`\n\n- **option.logProvider**: function, modify or replace log provider. Default: `console`.\n\n ```javascript\n // simple replace\n function logProvider(provider) {\n // replace the default console log provider.\n return require('winston')\n }\n ```\n\n ```javascript\n // verbose replacement\n function logProvider(provider) {\n var logger = new (require('winston')).Logger()\n\n var myCustomProvider = {\n log: logger.log,\n debug: logger.debug,\n info: logger.info,\n warn: logger.warn,\n error: logger.error\n }\n return myCustomProvider\n }\n ```\n\n- (DEPRECATED) **option.proxyHost**: Use `option.changeOrigin = true` instead.\n- (DEPRECATED) **option.proxyTable**: Use `option.router` instead.\n\n### http-proxy events\n\nSubscribe to [http-proxy events](https://github.com/nodejitsu/node-http-proxy#listening-for-proxy-events):\n\n- **option.onError**: function, subscribe to http-proxy's `error` event for custom error handling.\n\n ```javascript\n function onError(err, req, res) {\n res.writeHead(500, {\n 'Content-Type': 'text/plain'\n })\n res.end(\n 'Something went wrong. And we are reporting a custom error message.'\n )\n }\n ```\n\n- **option.onProxyRes**: function, subscribe to http-proxy's `proxyRes` event.\n\n ```javascript\n function onProxyRes(proxyRes, req, res) {\n proxyRes.headers['x-added'] = 'foobar' // add new header to response\n delete proxyRes.headers['x-removed'] // remove header from response\n }\n ```\n\n- **option.onProxyReq**: function, subscribe to http-proxy's `proxyReq` event.\n\n ```javascript\n function onProxyReq(proxyReq, req, res) {\n // add custom header to request\n proxyReq.setHeader('x-added', 'foobar')\n // or log the req\n }\n ```\n\n- **option.onProxyReqWs**: function, subscribe to http-proxy's `proxyReqWs` event.\n\n ```javascript\n function onProxyReqWs(proxyReq, req, socket, options, head) {\n // add custom header\n proxyReq.setHeader('X-Special-Proxy-Header', 'foobar')\n }\n ```\n\n- **option.onOpen**: function, subscribe to http-proxy's `open` event.\n\n ```javascript\n function onOpen(proxySocket) {\n // listen for messages coming FROM the target here\n proxySocket.on('data', hybiParseAndLogMessage)\n }\n ```\n\n- **option.onClose**: function, subscribe to http-proxy's `close` event.\n ```javascript\n function onClose(res, socket, head) {\n // view disconnected websocket connections\n console.log('Client disconnected')\n }\n ```\n\n### http-proxy options\n\nThe following options are provided by the underlying [http-proxy](https://github.com/nodejitsu/node-http-proxy#options) library.\n\n- **option.target**: url string to be parsed with the url module\n- **option.forward**: url string to be parsed with the url module\n- **option.agent**: object to be passed to http(s).request (see Node's [https agent](http://nodejs.org/api/https.html#https_class_https_agent) and [http agent](http://nodejs.org/api/http.html#http_class_http_agent) objects)\n- **option.ssl**: object to be passed to https.createServer()\n- **option.ws**: true/false: if you want to proxy websockets\n- **option.xfwd**: true/false, adds x-forward headers\n- **option.secure**: true/false, if you want to verify the SSL Certs\n- **option.toProxy**: true/false, passes the absolute URL as the `path` (useful for proxying to proxies)\n- **option.prependPath**: true/false, Default: true - specify whether you want to prepend the target's path to the proxy path\n- **option.ignorePath**: true/false, Default: false - specify whether you want to ignore the proxy path of the incoming request (note: you will have to append / manually if required).\n- **option.localAddress** : Local interface string to bind for outgoing connections\n- **option.changeOrigin**: true/false, Default: false - changes the origin of the host header to the target URL\n- **option.preserveHeaderKeyCase**: true/false, Default: false - specify whether you want to keep letter case of response header key\n- **option.auth** : Basic authentication i.e. 'user:password' to compute an Authorization header.\n- **option.hostRewrite**: rewrites the location hostname on (301/302/307/308) redirects.\n- **option.autoRewrite**: rewrites the location host/port on (301/302/307/308) redirects based on requested host/port. Default: false.\n- **option.protocolRewrite**: rewrites the location protocol on (301/302/307/308) redirects to 'http' or 'https'. Default: null.\n- **option.cookieDomainRewrite**: rewrites domain of `set-cookie` headers. Possible values:\n - `false` (default): disable cookie rewriting\n - String: new domain, for example `cookieDomainRewrite: \"new.domain\"`. To remove the domain, use `cookieDomainRewrite: \"\"`.\n - Object: mapping of domains to new domains, use `\"*\"` to match all domains. \n For example keep one domain unchanged, rewrite one domain and remove other domains:\n ```\n cookieDomainRewrite: {\n \"unchanged.domain\": \"unchanged.domain\",\n \"old.domain\": \"new.domain\",\n \"*\": \"\"\n }\n ```\n- **option.cookiePathRewrite**: rewrites path of `set-cookie` headers. Possible values:\n - `false` (default): disable cookie rewriting\n - String: new path, for example `cookiePathRewrite: \"/newPath/\"`. To remove the path, use `cookiePathRewrite: \"\"`. To set path to root use `cookiePathRewrite: \"/\"`.\n - Object: mapping of paths to new paths, use `\"*\"` to match all paths.\n For example, to keep one path unchanged, rewrite one path and remove other paths:\n ```\n cookiePathRewrite: {\n \"/unchanged.path/\": \"/unchanged.path/\",\n \"/old.path/\": \"/new.path/\",\n \"*\": \"\"\n }\n ```\n- **option.headers**: object, adds [request headers](https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#Request_fields). (Example: `{host:'www.example.org'}`)\n- **option.proxyTimeout**: timeout (in millis) when proxy receives no response from target\n- **option.timeout**: timeout (in millis) for incoming requests\n- **option.followRedirects**: true/false, Default: false - specify whether you want to follow redirects\n- **option.selfHandleResponse** true/false, if set to true, none of the webOutgoing passes are called and it's your responsibility to appropriately return the response by listening and acting on the `proxyRes` event\n- **option.buffer**: stream of data to send as the request body. Maybe you have some middleware that consumes the request stream before proxying it on e.g. If you read the body of a request into a field called 'req.rawbody' you could restream this field in the buffer option:\n\n ```\n 'use strict';\n\n const streamify = require('stream-array');\n const HttpProxy = require('http-proxy');\n const proxy = new HttpProxy();\n\n module.exports = (req, res, next) => {\n\n proxy.web(req, res, {\n target: 'http://localhost:4003/',\n buffer: streamify(req.rawBody)\n }, next);\n\n };\n ```\n\n## Shorthand\n\nUse the shorthand syntax when verbose configuration is not needed. The `context` and `option.target` will be automatically configured when shorthand is used. Options can still be used if needed.\n\n```javascript\nproxy('http://www.example.org:8000/api')\n// proxy('/api', {target: 'http://www.example.org:8000'});\n\nproxy('http://www.example.org:8000/api/books/*/**.json')\n// proxy('/api/books/*/**.json', {target: 'http://www.example.org:8000'});\n\nproxy('http://www.example.org:8000/api', { changeOrigin: true })\n// proxy('/api', {target: 'http://www.example.org:8000', changeOrigin: true});\n```\n\n### app.use(path, proxy)\n\nIf you want to use the server's `app.use` `path` parameter to match requests;\nCreate and mount the proxy without the http-proxy-middleware `context` parameter:\n\n```javascript\napp.use('/api', proxy({ target: 'http://www.example.org', changeOrigin: true }))\n```\n\n`app.use` documentation:\n\n- express: http://expressjs.com/en/4x/api.html#app.use\n- connect: https://github.com/senchalabs/connect#mount-middleware\n\n## WebSocket\n\n```javascript\n// verbose api\nproxy('/', { target: 'http://echo.websocket.org', ws: true })\n\n// shorthand\nproxy('http://echo.websocket.org', { ws: true })\n\n// shorter shorthand\nproxy('ws://echo.websocket.org')\n```\n\n### External WebSocket upgrade\n\nIn the previous WebSocket examples, http-proxy-middleware relies on a initial http request in order to listen to the http `upgrade` event. If you need to proxy WebSockets without the initial http request, you can subscribe to the server's http `upgrade` event manually.\n\n```javascript\nvar wsProxy = proxy('ws://echo.websocket.org', { changeOrigin: true })\n\nvar app = express()\napp.use(wsProxy)\n\nvar server = app.listen(3000)\nserver.on('upgrade', wsProxy.upgrade) // <-- subscribe to http 'upgrade'\n```\n\n## Working examples\n\nView and play around with [working examples](https://github.com/chimurai/http-proxy-middleware/tree/master/examples).\n\n- Browser-Sync ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/browser-sync/index.js))\n- express ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/express/index.js))\n- connect ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/connect/index.js))\n- WebSocket ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/websocket/index.js))\n\n## Recipes\n\nView the [recipes](https://github.com/chimurai/http-proxy-middleware/tree/master/recipes) for common use cases.\n\n## Compatible servers\n\n`http-proxy-middleware` is compatible with the following servers:\n\n- [connect](https://www.npmjs.com/package/connect)\n- [express](https://www.npmjs.com/package/express)\n- [browser-sync](https://www.npmjs.com/package/browser-sync)\n- [lite-server](https://www.npmjs.com/package/lite-server)\n- [grunt-contrib-connect](https://www.npmjs.com/package/grunt-contrib-connect)\n- [grunt-browser-sync](https://www.npmjs.com/package/grunt-browser-sync)\n- [gulp-connect](https://www.npmjs.com/package/gulp-connect)\n- [gulp-webserver](https://www.npmjs.com/package/gulp-webserver)\n\nSample implementations can be found in the [server recipes](https://github.com/chimurai/http-proxy-middleware/tree/master/recipes/servers.md).\n\n## Tests\n\nRun the test suite:\n\n```bash\n# install dependencies\n$ npm install\n\n# linting\n$ npm run lint\n\n# unit tests\n$ npm test\n\n# code coverage\n$ npm run cover\n```\n\n## Changelog\n\n- [View changelog](https://github.com/chimurai/http-proxy-middleware/blob/master/CHANGELOG.md)\n\n## License\n\nThe MIT License (MIT)\n\nCopyright (c) 2015-2018 Steven Chim\n# sha.js\n[](https://www.npmjs.org/package/sha.js)\n[](https://travis-ci.org/crypto-browserify/sha.js)\n[](https://david-dm.org/crypto-browserify/sha.js#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nNode style `SHA` on pure JavaScript.\n\n```js\nvar shajs = require('sha.js')\n\nconsole.log(shajs('sha256').update('42').digest('hex'))\n// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049\nconsole.log(new shajs.sha256().update('42').digest('hex'))\n// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049\n\nvar sha256stream = shajs('sha256')\nsha256stream.end('42')\nconsole.log(sha256stream.read().toString('hex'))\n// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049\n```\n\n## supported hashes\n`sha.js` currently implements:\n\n - SHA (SHA-0) -- **legacy, do not use in new systems**\n - SHA-1 -- **legacy, do not use in new systems**\n - SHA-224\n - SHA-256\n - SHA-384\n - SHA-512\n\n## Not an actual stream\nNote, this doesn't actually implement a stream, but wrapping this in a stream is trivial.\nIt does update incrementally, so you can hash things larger than RAM, as it uses a constant amount of memory (except when using base64 or utf8 encoding, see code comments).\n\n## Acknowledgements\nThis work is derived from Paul Johnston's [A JavaScript implementation of the Secure Hash Algorithm](http://pajhome.org.uk/crypt/md5/sha1.html).\n\n## LICENSE [MIT](LICENSE)\n# rc\n\nThe non-configurable configuration loader for lazy people.\n\n## Usage\n\nThe only option is to pass rc the name of your app, and your default configuration.\n\n```javascript\nvar conf = require('rc')(appname, {\n //defaults go here.\n port: 2468,\n\n //defaults which are objects will be merged, not replaced\n views: {\n engine: 'jade'\n }\n});\n```\n\n`rc` will return your configuration options merged with the defaults you specify.\nIf you pass in a predefined defaults object, it will be mutated:\n\n```javascript\nvar conf = {};\nrequire('rc')(appname, conf);\n```\n\nIf `rc` finds any config files for your app, the returned config object will have\na `configs` array containing their paths:\n\n```javascript\nvar appCfg = require('rc')(appname, conf);\nappCfg.configs[0] // /etc/appnamerc\nappCfg.configs[1] // /home/dominictarr/.config/appname\nappCfg.config // same as appCfg.configs[appCfg.configs.length - 1]\n```\n\n## Standards\n\nGiven your application name (`appname`), rc will look in all the obvious places for configuration.\n\n * command line arguments, parsed by minimist _(e.g. `--foo baz`, also nested: `--foo.bar=baz`)_\n * environment variables prefixed with `${appname}_`\n * or use \"\\_\\_\" to indicate nested properties <br/> _(e.g. `appname_foo__bar__baz` => `foo.bar.baz`)_\n * if you passed an option `--config file` then from that file\n * a local `.${appname}rc` or the first found looking in `./ ../ ../../ ../../../` etc.\n * `$HOME/.${appname}rc`\n * `$HOME/.${appname}/config`\n * `$HOME/.config/${appname}`\n * `$HOME/.config/${appname}/config`\n * `/etc/${appname}rc`\n * `/etc/${appname}/config`\n * the defaults object you passed in.\n\nAll configuration sources that were found will be flattened into one object,\nso that sources **earlier** in this list override later ones.\n\n## Configuration File Formats\n\nConfiguration files (e.g. `.appnamerc`) may be in either [json](http://json.org/example) or [ini](http://en.wikipedia.org/wiki/INI_file) format. **No** file extension (`.json` or `.ini`) should be used. The example configurations below are equivalent:\n\n#### Formatted as `ini`\n\n```\n; You can include comments in `ini` format if you want.\n\ndependsOn=0.10.0\n\n; `rc` has built-in support for ini sections, see?\n\n[commands]\n www = ./commands/www\n console = ./commands/repl\n\n; You can even do nested sections\n\n[generators.options]\n engine = ejs\n\n[generators.modules]\n new = generate-new\n engine = generate-backend\n\n```\n\n#### Formatted as `json`\n\n```javascript\n{\n // You can even comment your JSON, if you want\n \"dependsOn\": \"0.10.0\",\n \"commands\": {\n \"www\": \"./commands/www\",\n \"console\": \"./commands/repl\"\n },\n \"generators\": {\n \"options\": {\n \"engine\": \"ejs\"\n },\n \"modules\": {\n \"new\": \"generate-new\",\n \"backend\": \"generate-backend\"\n }\n }\n}\n```\n\nComments are stripped from JSON config via [strip-json-comments](https://github.com/sindresorhus/strip-json-comments).\n\n> Since ini, and env variables do not have a standard for types, your application needs be prepared for strings.\n\nTo ensure that string representations of booleans and numbers are always converted into their proper types (especially useful if you intend to do strict `===` comparisons), consider using a module such as [parse-strings-in-object](https://github.com/anselanza/parse-strings-in-object) to wrap the config object returned from rc.\n\n## Simple example demonstrating precedence\nAssume you have an application like this (notice the hard-coded defaults passed to rc):\n```\nconst conf = require('rc')('myapp', {\n port: 12345,\n mode: 'test'\n});\n\nconsole.log(JSON.stringify(conf, null, 2));\n```\nYou also have a file `config.json`, with these contents:\n```\n{\n \"port\": 9000,\n \"foo\": \"from config json\",\n \"something\": \"else\"\n}\n```\nAnd a file `.myapprc` in the same folder, with these contents:\n```\n{\n \"port\": \"3001\",\n \"foo\": \"bar\"\n}\n```\nHere is the expected output from various commands:\n\n`node .`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"bar\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Default `mode` from hard-coded object is retained, but port is overridden by `.myapprc` file (automatically found based on appname match), and `foo` is added.*\n\n`node . --foo baz`\n```\n{\n \"port\": \"3001\",\n \"mode\": \"test\",\n \"foo\": \"baz\",\n \"_\": [],\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\"\n ],\n \"config\": \"/Users/stephen/repos/conftest/.myapprc\"\n}\n```\n*Same result as above but `foo` is overridden because command-line arguments take precedence over `.myapprc` file.*\n\n`node . --foo barbar --config config.json`\n```\n{\n \"port\": 9000,\n \"mode\": \"test\",\n \"foo\": \"barbar\",\n \"something\": \"else\",\n \"_\": [],\n \"config\": \"config.json\",\n \"configs\": [\n \"/Users/stephen/repos/conftest/.myapprc\",\n \"config.json\"\n ]\n}\n```\n*Now the `port` comes from the `config.json` file specified (overriding the value from `.myapprc`), and `foo` value is overriden by command-line despite also being specified in the `config.json` file.*\n \n\n## Advanced Usage\n\n#### Pass in your own `argv`\n\nYou may pass in your own `argv` as the third argument to `rc`. This is in case you want to [use your own command-line opts parser](https://github.com/dominictarr/rc/pull/12).\n\n```javascript\nrequire('rc')(appname, defaults, customArgvParser);\n```\n\n## Pass in your own parser\n\nIf you have a special need to use a non-standard parser,\nyou can do so by passing in the parser as the 4th argument.\n(leave the 3rd as null to get the default args parser)\n\n```javascript\nrequire('rc')(appname, defaults, null, parser);\n```\n\nThis may also be used to force a more strict format,\nsuch as strict, valid JSON only.\n\n## Note on Performance\n\n`rc` is running `fs.statSync`-- so make sure you don't use it in a hot code path (e.g. a request handler) \n\n## License\n\nMulti-licensed under the two-clause BSD License, MIT License, or Apache License, version 2.0\n# normalize-package-data [](https://travis-ci.org/npm/normalize-package-data)\n\nnormalize-package-data exports a function that normalizes package metadata. This data is typically found in a package.json file, but in principle could come from any source - for example the npm registry.\n\nnormalize-package-data is used by [read-package-json](https://npmjs.org/package/read-package-json) to normalize the data it reads from a package.json file. In turn, read-package-json is used by [npm](https://npmjs.org/package/npm) and various npm-related tools.\n\n## Installation\n\n```\nnpm install normalize-package-data\n```\n\n## Usage\n\nBasic usage is really simple. You call the function that normalize-package-data exports. Let's call it `normalizeData`.\n\n```javascript\nnormalizeData = require('normalize-package-data')\npackageData = require(\"./package.json\")\nnormalizeData(packageData)\n// packageData is now normalized\n```\n\n#### Strict mode\n\nYou may activate strict validation by passing true as the second argument.\n\n```javascript\nnormalizeData = require('normalize-package-data')\npackageData = require(\"./package.json\")\nnormalizeData(packageData, true)\n// packageData is now normalized\n```\n\nIf strict mode is activated, only Semver 2.0 version strings are accepted. Otherwise, Semver 1.0 strings are accepted as well. Packages must have a name, and the name field must not have contain leading or trailing whitespace.\n\n#### Warnings\n\nOptionally, you may pass a \"warning\" function. It gets called whenever the `normalizeData` function encounters something that doesn't look right. It indicates less than perfect input data.\n\n```javascript\nnormalizeData = require('normalize-package-data')\npackageData = require(\"./package.json\")\nwarnFn = function(msg) { console.error(msg) }\nnormalizeData(packageData, warnFn)\n// packageData is now normalized. Any number of warnings may have been logged.\n```\n\nYou may combine strict validation with warnings by passing `true` as the second argument, and `warnFn` as third.\n\nWhen `private` field is set to `true`, warnings will be suppressed.\n\n### Potential exceptions\n\nIf the supplied data has an invalid name or version vield, `normalizeData` will throw an error. Depending on where you call `normalizeData`, you may want to catch these errors so can pass them to a callback.\n\n## What normalization (currently) entails\n\n* The value of `name` field gets trimmed (unless in strict mode).\n* The value of the `version` field gets cleaned by `semver.clean`. See [documentation for the semver module](https://github.com/isaacs/node-semver).\n* If `name` and/or `version` fields are missing, they are set to empty strings.\n* If `files` field is not an array, it will be removed.\n* If `bin` field is a string, then `bin` field will become an object with `name` set to the value of the `name` field, and `bin` set to the original string value.\n* If `man` field is a string, it will become an array with the original string as its sole member.\n* If `keywords` field is string, it is considered to be a list of keywords separated by one or more white-space characters. It gets converted to an array by splitting on `\\s+`.\n* All people fields (`author`, `maintainers`, `contributors`) get converted into objects with name, email and url properties.\n* If `bundledDependencies` field (a typo) exists and `bundleDependencies` field does not, `bundledDependencies` will get renamed to `bundleDependencies`.\n* If the value of any of the dependencies fields (`dependencies`, `devDependencies`, `optionalDependencies`) is a string, it gets converted into an object with familiar `name=>value` pairs.\n* The values in `optionalDependencies` get added to `dependencies`. The `optionalDependencies` array is left untouched.\n* As of v2: Dependencies that point at known hosted git providers (currently: github, bitbucket, gitlab) will have their URLs canonicalized, but protocols will be preserved.\n* As of v2: Dependencies that use shortcuts for hosted git providers (`org/proj`, `github:org/proj`, `bitbucket:org/proj`, `gitlab:org/proj`, `gist:docid`) will have the shortcut left in place. (In the case of github, the `org/proj` form will be expanded to `github:org/proj`.) THIS MARKS A BREAKING CHANGE FROM V1, where the shorcut was previously expanded to a URL.\n* If `description` field does not exist, but `readme` field does, then (more or less) the first paragraph of text that's found in the readme is taken as value for `description`.\n* If `repository` field is a string, it will become an object with `url` set to the original string value, and `type` set to `\"git\"`.\n* If `repository.url` is not a valid url, but in the style of \"[owner-name]/[repo-name]\", `repository.url` will be set to git+https://github.com/[owner-name]/[repo-name].git\n* If `bugs` field is a string, the value of `bugs` field is changed into an object with `url` set to the original string value.\n* If `bugs` field does not exist, but `repository` field points to a repository hosted on GitHub, the value of the `bugs` field gets set to an url in the form of https://github.com/[owner-name]/[repo-name]/issues . If the repository field points to a GitHub Gist repo url, the associated http url is chosen.\n* If `bugs` field is an object, the resulting value only has email and url properties. If email and url properties are not strings, they are ignored. If no valid values for either email or url is found, bugs field will be removed.\n* If `homepage` field is not a string, it will be removed.\n* If the url in the `homepage` field does not specify a protocol, then http is assumed. For example, `myproject.org` will be changed to `http://myproject.org`.\n* If `homepage` field does not exist, but `repository` field points to a repository hosted on GitHub, the value of the `homepage` field gets set to an url in the form of https://github.com/[owner-name]/[repo-name]#readme . If the repository field points to a GitHub Gist repo url, the associated http url is chosen.\n\n### Rules for name field\n\nIf `name` field is given, the value of the name field must be a string. The string may not:\n\n* start with a period.\n* contain the following characters: `/@\\s+%`\n* contain any characters that would need to be encoded for use in urls.\n* resemble the word `node_modules` or `favicon.ico` (case doesn't matter).\n\n### Rules for version field\n\nIf `version` field is given, the value of the version field must be a valid *semver* string, as determined by the `semver.valid` method. See [documentation for the semver module](https://github.com/isaacs/node-semver).\n\n### Rules for license field\n\nThe `license` field should be a valid *SPDX license expression* or one of the special values allowed by [validate-npm-package-license](https://npmjs.com/package/validate-npm-package-license). See [documentation for the license field in package.json](https://docs.npmjs.com/files/package.json#license).\n\n## Credits\n\nThis package contains code based on read-package-json written by Isaac Z. Schlueter. Used with permisson.\n\n## License\n\nnormalize-package-data is released under the [BSD 2-Clause License](http://opensource.org/licenses/MIT). \nCopyright (c) 2013 Meryn Stol\nIf you want to write an option parser, and have it be good, there are\ntwo ways to do it. The Right Way, and the Wrong Way.\n\nThe Wrong Way is to sit down and write an option parser. We've all done\nthat.\n\nThe Right Way is to write some complex configurable program with so many\noptions that you hit the limit of your frustration just trying to\nmanage them all, and defer it with duct-tape solutions until you see\nexactly to the core of the problem, and finally snap and write an\nawesome option parser.\n\nIf you want to write an option parser, don't write an option parser.\nWrite a package manager, or a source control system, or a service\nrestarter, or an operating system. You probably won't end up with a\ngood one of those, but if you don't give up, and you are relentless and\ndiligent enough in your procrastination, you may just end up with a very\nnice option parser.\n\n## USAGE\n\n // my-program.js\n var nopt = require(\"nopt\")\n , Stream = require(\"stream\").Stream\n , path = require(\"path\")\n , knownOpts = { \"foo\" : [String, null]\n , \"bar\" : [Stream, Number]\n , \"baz\" : path\n , \"bloo\" : [ \"big\", \"medium\", \"small\" ]\n , \"flag\" : Boolean\n , \"pick\" : Boolean\n , \"many1\" : [String, Array]\n , \"many2\" : [path]\n }\n , shortHands = { \"foofoo\" : [\"--foo\", \"Mr. Foo\"]\n , \"b7\" : [\"--bar\", \"7\"]\n , \"m\" : [\"--bloo\", \"medium\"]\n , \"p\" : [\"--pick\"]\n , \"f\" : [\"--flag\"]\n }\n // everything is optional.\n // knownOpts and shorthands default to {}\n // arg list defaults to process.argv\n // slice defaults to 2\n , parsed = nopt(knownOpts, shortHands, process.argv, 2)\n console.log(parsed)\n\nThis would give you support for any of the following:\n\n```bash\n$ node my-program.js --foo \"blerp\" --no-flag\n{ \"foo\" : \"blerp\", \"flag\" : false }\n\n$ node my-program.js ---bar 7 --foo \"Mr. Hand\" --flag\n{ bar: 7, foo: \"Mr. Hand\", flag: true }\n\n$ node my-program.js --foo \"blerp\" -f -----p\n{ foo: \"blerp\", flag: true, pick: true }\n\n$ node my-program.js -fp --foofoo\n{ foo: \"Mr. Foo\", flag: true, pick: true }\n\n$ node my-program.js --foofoo -- -fp # -- stops the flag parsing.\n{ foo: \"Mr. Foo\", argv: { remain: [\"-fp\"] } }\n\n$ node my-program.js --blatzk -fp # unknown opts are ok.\n{ blatzk: true, flag: true, pick: true }\n\n$ node my-program.js --blatzk=1000 -fp # but you need to use = if they have a value\n{ blatzk: 1000, flag: true, pick: true }\n\n$ node my-program.js --no-blatzk -fp # unless they start with \"no-\"\n{ blatzk: false, flag: true, pick: true }\n\n$ node my-program.js --baz b/a/z # known paths are resolved.\n{ baz: \"/Users/isaacs/b/a/z\" }\n\n# if Array is one of the types, then it can take many\n# values, and will always be an array. The other types provided\n# specify what types are allowed in the list.\n\n$ node my-program.js --many1 5 --many1 null --many1 foo\n{ many1: [\"5\", \"null\", \"foo\"] }\n\n$ node my-program.js --many2 foo --many2 bar\n{ many2: [\"/path/to/foo\", \"path/to/bar\"] }\n```\n\nRead the tests at the bottom of `lib/nopt.js` for more examples of\nwhat this puppy can do.\n\n## Types\n\nThe following types are supported, and defined on `nopt.typeDefs`\n\n* String: A normal string. No parsing is done.\n* path: A file system path. Gets resolved against cwd if not absolute.\n* url: A url. If it doesn't parse, it isn't accepted.\n* Number: Must be numeric.\n* Date: Must parse as a date. If it does, and `Date` is one of the options,\n then it will return a Date object, not a string.\n* Boolean: Must be either `true` or `false`. If an option is a boolean,\n then it does not need a value, and its presence will imply `true` as\n the value. To negate boolean flags, do `--no-whatever` or `--whatever\n false`\n* NaN: Means that the option is strictly not allowed. Any value will\n fail.\n* Stream: An object matching the \"Stream\" class in node. Valuable\n for use when validating programmatically. (npm uses this to let you\n supply any WriteStream on the `outfd` and `logfd` config options.)\n* Array: If `Array` is specified as one of the types, then the value\n will be parsed as a list of options. This means that multiple values\n can be specified, and that the value will always be an array.\n\nIf a type is an array of values not on this list, then those are\nconsidered valid values. For instance, in the example above, the\n`--bloo` option can only be one of `\"big\"`, `\"medium\"`, or `\"small\"`,\nand any other value will be rejected.\n\nWhen parsing unknown fields, `\"true\"`, `\"false\"`, and `\"null\"` will be\ninterpreted as their JavaScript equivalents.\n\nYou can also mix types and values, or multiple types, in a list. For\ninstance `{ blah: [Number, null] }` would allow a value to be set to\neither a Number or null. When types are ordered, this implies a\npreference, and the first type that can be used to properly interpret\nthe value will be used.\n\nTo define a new type, add it to `nopt.typeDefs`. Each item in that\nhash is an object with a `type` member and a `validate` method. The\n`type` member is an object that matches what goes in the type list. The\n`validate` method is a function that gets called with `validate(data,\nkey, val)`. Validate methods should assign `data[key]` to the valid\nvalue of `val` if it can be handled properly, or return boolean\n`false` if it cannot.\n\nYou can also call `nopt.clean(data, types, typeDefs)` to clean up a\nconfig object and remove its invalid properties.\n\n## Error Handling\n\nBy default, nopt outputs a warning to standard error when invalid values for\nknown options are found. You can change this behavior by assigning a method\nto `nopt.invalidHandler`. This method will be called with\nthe offending `nopt.invalidHandler(key, val, types)`.\n\nIf no `nopt.invalidHandler` is assigned, then it will console.error\nits whining. If it is assigned to boolean `false` then the warning is\nsuppressed.\n\n## Abbreviations\n\nYes, they are supported. If you define options like this:\n\n```javascript\n{ \"foolhardyelephants\" : Boolean\n, \"pileofmonkeys\" : Boolean }\n```\n\nThen this will work:\n\n```bash\nnode program.js --foolhar --pil\nnode program.js --no-f --pileofmon\n# etc.\n```\n\n## Shorthands\n\nShorthands are a hash of shorter option names to a snippet of args that\nthey expand to.\n\nIf multiple one-character shorthands are all combined, and the\ncombination does not unambiguously match any other option or shorthand,\nthen they will be broken up into their constituent parts. For example:\n\n```json\n{ \"s\" : [\"--loglevel\", \"silent\"]\n, \"g\" : \"--global\"\n, \"f\" : \"--force\"\n, \"p\" : \"--parseable\"\n, \"l\" : \"--long\"\n}\n```\n\n```bash\nnpm ls -sgflp\n# just like doing this:\nnpm ls --loglevel silent --global --force --long --parseable\n```\n\n## The Rest of the args\n\nThe config object returned by nopt is given a special member called\n`argv`, which is an object with the following fields:\n\n* `remain`: The remaining args after all the parsing has occurred.\n* `original`: The args as they originally appeared.\n* `cooked`: The args after flags and shorthands are expanded.\n\n## Slicing\n\nNode programs are called with more or less the exact argv as it appears\nin C land, after the v8 and node-specific options have been plucked off.\nAs such, `argv[0]` is always `node` and `argv[1]` is always the\nJavaScript program being run.\n\nThat's usually not very useful to you. So they're sliced off by\ndefault. If you want them, then you can pass in `0` as the last\nargument, or any other number that you'd like to slice off the start of\nthe list.\n## getpass\n\nGet a password from the terminal. Sounds simple? Sounds like the `readline`\nmodule should be able to do it? NOPE.\n\n## Install and use it\n\n```bash\nnpm install --save getpass\n```\n\n```javascript\nconst mod_getpass = require('getpass');\n```\n\n## API\n\n### `mod_getpass.getPass([options, ]callback)`\n\nGets a password from the terminal. If available, this uses `/dev/tty` to avoid\ninterfering with any data being piped in or out of stdio.\n\nThis function prints a prompt (by default `Password:`) and then accepts input\nwithout echoing.\n\nParameters:\n\n * `options`, an Object, with properties:\n * `prompt`, an optional String\n * `callback`, a `Func(error, password)`, with arguments:\n * `error`, either `null` (no error) or an `Error` instance\n * `password`, a String\n# node-libs-browser\n\nThe node core libs for in-browser usage.\n\n[](http://david-dm.org/webpack/node-libs-browser)\n\nExports a hash [object] of absolute paths to each lib, keyed by lib names. Modules without browser replacements are `null`.\n\nSome modules have mocks in the `mock` directory. These are replacements with minimal functionality.\n\n| lib name | browser implementation | mock implementation |\n|:--------:|:----------------------:|:-------------------:|\n| assert | [defunctzombie/commonjs-assert](https://github.com/defunctzombie/commonjs-assert) | --- |\n| buffer | [feross/buffer](https://github.com/feross/buffer) | [buffer.js](https://github.com/webpack/node-libs-browser/blob/master/mock/buffer.js) |\n| child_process | --- | --- |\n| cluster | --- | --- |\n| console | [Raynos/console-browserify](https://github.com/Raynos/console-browserify) | [console.js](https://github.com/webpack/node-libs-browser/blob/master/mock/console.js) |\n| constants | [juliangruber/constants-browserify](https://github.com/juliangruber/constants-browserify) | --- |\n| crypto | [crypto-browserify/crypto-browserify](https://github.com/crypto-browserify/crypto-browserify) | --- |\n| dgram | --- | --- |\n| dns | --- | [dns.js](https://github.com/webpack/node-libs-browser/blob/master/mock/dns.js) |\n| domain | [bevry/domain-browser](https://github.com/bevry/domain-browser) | --- |\n| events | [Gozala/events](https://github.com/Gozala/events) | --- |\n| fs | --- | --- |\n| http | [jhiesey/stream-http](https://github.com/jhiesey/stream-http) | --- |\n| https | [substack/https-browserify](https://github.com/substack/https-browserify) | --- |\n| module | --- | --- |\n| net | --- | [net.js](https://github.com/webpack/node-libs-browser/blob/master/mock/net.js) |\n| os | [CoderPuppy/os-browserify](https://github.com/CoderPuppy/os-browserify) | --- |\n| path | [substack/path-browserify](https://github.com/substack/path-browserify) | --- |\n| process | [shtylman/node-process](https://github.com/shtylman/node-process) | [process.js](https://github.com/webpack/node-libs-browser/blob/master/mock/process.js) |\n| punycode | [bestiejs/punycode.js](https://github.com/bestiejs/punycode.js) | --- |\n| querystring | [mike-spainhower/querystring](https://github.com/mike-spainhower/querystring) | --- |\n| readline | --- | --- |\n| repl | --- | --- |\n| stream | [substack/stream-browserify](https://github.com/substack/stream-browserify) | --- |\n| string_decoder | [rvagg/string_decoder](https://github.com/rvagg/string_decoder) | --- |\n| sys | [defunctzombie/node-util](https://github.com/defunctzombie/node-util) | --- |\n| timers | [jryans/timers-browserify](https://github.com/jryans/timers-browserify) | --- | \n| tls | --- | [tls.js](https://github.com/webpack/node-libs-browser/blob/master/mock/tls.js) |\n| tty | [substack/tty-browserify](https://github.com/substack/tty-browserify) | [tty.js](https://github.com/webpack/node-libs-browser/blob/master/mock/tty.js) |\n| url | [defunctzombie/node-url](https://github.com/defunctzombie/node-url) | --- |\n| util | [defunctzombie/node-util](https://github.com/defunctzombie/node-util) | --- |\n| vm | [substack/vm-browserify](https://github.com/substack/vm-browserify) | --- |\n| zlib | [devongovett/browserify-zlib](https://github.com/devongovett/browserify-zlib) | --- |\n\n## Outdated versions \n\n### `buffer`\n\nThe current `buffer` implementation uses feross/buffer@4.x because feross/buffer@5.x relies on [typed arrays](https://github.com/feross/buffer/commit/5daca86b7cd5d2b8ccb167534d47421029f639e9#commitcomment-19698936).\nThis will be dropped as soon as IE9 is not a typical browser target anymore.\n\n### `punycode`\n\nThe current `punycode` implementation uses bestiejs/punycode.js@1.x because bestiejs/punycode.js@2.x requires modern JS engines that understand `const` and `let`.\nIt will be removed someday since it has already been [deprecated from the node API](https://nodejs.org/api/punycode.html).\n\n## License\n\nMIT\n# yargs-parser\n\n[](https://travis-ci.org/yargs/yargs-parser)\n[](https://coveralls.io/r/yargs/yargs-parser?branch=master)\n[](https://www.npmjs.com/package/yargs-parser)\n[](https://ci.appveyor.com/project/bcoe/yargs-parser)\n[](https://github.com/conventional-changelog/standard-version)\n\nThe mighty option parser used by [yargs](https://github.com/yargs/yargs).\n\nvisit the [yargs website](http://yargs.js.org/) for more examples, and thorough usage instructions.\n\n<img width=\"250\" src=\"https://github.com/yargs/yargs-parser/blob/master/yargs-logo.png\">\n\n## Example\n\n```sh\nnpm i yargs-parser --save\n```\n\n```js\nvar argv = require('yargs-parser')(process.argv.slice(2))\nconsole.log(argv)\n```\n\n```sh\nnode example.js --foo=33 --bar hello\n{ _: [], foo: 33, bar: 'hello' }\n```\n\n_or parse a string!_\n\n```js\nvar argv = require('./')('--foo=99 --bar=33')\nconsole.log(argv)\n```\n\n```sh\n{ _: [], foo: 99, bar: 33 }\n```\n\nConvert an array of mixed types before passing to `yargs-parser`:\n\n```js\nvar parse = require('yargs-parser')\nparse(['-f', 11, '--zoom', 55].join(' ')) // <-- array to string\nparse(['-f', 11, '--zoom', 55].map(String)) // <-- array of strings\n```\n\n## API\n\n### require('yargs-parser')(args, opts={})\n\nParses command line arguments returning a simple mapping of keys and values.\n\n**expects:**\n\n* `args`: a string or array of strings representing the options to parse.\n* `opts`: provide a set of hints indicating how `args` should be parsed:\n * `opts.alias`: an object representing the set of aliases for a key: `{alias: {foo: ['f']}}`.\n * `opts.array`: indicate that keys should be parsed as an array: `{array: ['foo', 'bar']}`.\n * `opts.boolean`: arguments should be parsed as booleans: `{boolean: ['x', 'y']}`.\n * `opts.config`: indicate a key that represents a path to a configuration file (this file will be loaded and parsed).\n * `opts.coerce`: provide a custom synchronous function that returns a coerced value from the argument provided\n (or throws an error), e.g. `{coerce: {foo: function (arg) {return modifiedArg}}}`.\n * `opts.count`: indicate a key that should be used as a counter, e.g., `-vvv` = `{v: 3}`.\n * `opts.default`: provide default values for keys: `{default: {x: 33, y: 'hello world!'}}`.\n * `opts.envPrefix`: environment variables (`process.env`) with the prefix provided should be parsed.\n * `opts.narg`: specify that a key requires `n` arguments: `{narg: {x: 2}}`.\n * `opts.normalize`: `path.normalize()` will be applied to values set to this key.\n * `opts.string`: keys should be treated as strings (even if they resemble a number `-x 33`).\n * `opts.configuration`: provide configuration options to the yargs-parser (see: [configuration](#configuration)).\n * `opts.number`: keys should be treated as numbers.\n\n**returns:**\n\n* `obj`: an object representing the parsed value of `args`\n * `key/value`: key value pairs for each argument and their aliases.\n * `_`: an array representing the positional arguments.\n\n### require('yargs-parser').detailed(args, opts={})\n\nParses a command line string, returning detailed information required by the\nyargs engine.\n\n**expects:**\n\n* `args`: a string or array of strings representing options to parse.\n* `opts`: provide a set of hints indicating how `args`, inputs are identical to `require('yargs-parser')(args, opts={})`.\n\n**returns:**\n\n* `argv`: an object representing the parsed value of `args`\n * `key/value`: key value pairs for each argument and their aliases.\n * `_`: an array representing the positional arguments.\n* `error`: populated with an error object if an exception occurred during parsing.\n* `aliases`: the inferred list of aliases built by combining lists in `opts.alias`.\n* `newAliases`: any new aliases added via camel-case expansion.\n* `configuration`: the configuration loaded from the `yargs` stanza in package.json.\n\n<a name=\"configuration\"></a>\n### Configuration\n\nThe yargs-parser applies several automated transformations on the keys provided\nin `args`. These features can be turned on and off using the `configuration` field\nof `opts`.\n\n```js\nvar parsed = parser(['--no-dice'], {\n configuration: {\n 'boolean-negation': false\n }\n})\n```\n\n### short option groups\n\n* default: `true`.\n* key: `short-option-groups`.\n\nShould a group of short-options be treated as boolean flags?\n\n```sh\nnode example.js -abc\n{ _: [], a: true, b: true, c: true }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -abc\n{ _: [], abc: true }\n```\n\n### camel-case expansion\n\n* default: `true`.\n* key: `camel-case-expansion`.\n\nShould hyphenated arguments be expanded into camel-case aliases?\n\n```sh\nnode example.js --foo-bar\n{ _: [], 'foo-bar': true, fooBar: true }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo-bar\n{ _: [], 'foo-bar': true }\n```\n\n### dot-notation\n\n* default: `true`\n* key: `dot-notation`\n\nShould keys that contain `.` be treated as objects?\n\n```sh\nnode example.js --foo.bar\n{ _: [], foo: { bar: true } }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo.bar\n{ _: [], \"foo.bar\": true }\n```\n\n### parse numbers\n\n* default: `true`\n* key: `parse-numbers`\n\nShould keys that look like numbers be treated as such?\n\n```sh\nnode example.js --foo=99.3\n{ _: [], foo: 99.3 }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --foo=99.3\n{ _: [], foo: \"99.3\" }\n```\n\n### boolean negation\n\n* default: `true`\n* key: `boolean-negation`\n\nShould variables prefixed with `--no` be treated as negations?\n\n```sh\nnode example.js --no-foo\n{ _: [], foo: false }\n```\n\n_if disabled:_\n\n```sh\nnode example.js --no-foo\n{ _: [], \"no-foo\": true }\n```\n\n### duplicate arguments array\n\n* default: `true`\n* key: `duplicate-arguments-array`\n\nShould arguments be coerced into an array when duplicated:\n\n```sh\nnode example.js -x 1 -x 2\n{ _: [], x: [1, 2] }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -x 1 -x 2\n{ _: [], x: 2 }\n```\n\n### flatten duplicate arrays\n\n* default: `true`\n* key: `flatten-duplicate-arrays`\n\nShould array arguments be coerced into a single array when duplicated:\n\n```sh\nnode example.js -x 1 2 -x 3 4\n{ _: [], x: [1, 2, 3, 4] }\n```\n\n_if disabled:_\n\n```sh\nnode example.js -x 1 2 -x 3 4\n{ _: [], x: [[1, 2], [3, 4]] }\n```\n\n## Special Thanks\n\nThe yargs project evolves from optimist and minimist. It owes its\nexistence to a lot of James Halliday's hard work. Thanks [substack](https://github.com/substack) **beep** **boop** \\o/\n\n## License\n\nISC\n# npmlog\n\nThe logger util that npm uses.\n\nThis logger is very basic. It does the logging for npm. It supports\ncustom levels and colored output.\n\nBy default, logs are written to stderr. If you want to send log messages\nto outputs other than streams, then you can change the `log.stream`\nmember, or you can just listen to the events that it emits, and do\nwhatever you want with them.\n\n# Installation\n\n```console\nnpm install npmlog --save\n```\n\n# Basic Usage\n\n```javascript\nvar log = require('npmlog')\n\n// additional stuff ---------------------------+\n// message ----------+ |\n// prefix ----+ | |\n// level -+ | | |\n// v v v v\n log.info('fyi', 'I have a kitty cat: %j', myKittyCat)\n```\n\n## log.level\n\n* {String}\n\nThe level to display logs at. Any logs at or above this level will be\ndisplayed. The special level `silent` will prevent anything from being\ndisplayed ever.\n\n## log.record\n\n* {Array}\n\nAn array of all the log messages that have been entered.\n\n## log.maxRecordSize\n\n* {Number}\n\nThe maximum number of records to keep. If log.record gets bigger than\n10% over this value, then it is sliced down to 90% of this value.\n\nThe reason for the 10% window is so that it doesn't have to resize a\nlarge array on every log entry.\n\n## log.prefixStyle\n\n* {Object}\n\nA style object that specifies how prefixes are styled. (See below)\n\n## log.headingStyle\n\n* {Object}\n\nA style object that specifies how the heading is styled. (See below)\n\n## log.heading\n\n* {String} Default: \"\"\n\nIf set, a heading that is printed at the start of every line.\n\n## log.stream\n\n* {Stream} Default: `process.stderr`\n\nThe stream where output is written.\n\n## log.enableColor()\n\nForce colors to be used on all messages, regardless of the output\nstream.\n\n## log.disableColor()\n\nDisable colors on all messages.\n\n## log.enableProgress()\n\nEnable the display of log activity spinner and progress bar\n\n## log.disableProgress()\n\nDisable the display of a progress bar\n\n## log.enableUnicode()\n\nForce the unicode theme to be used for the progress bar.\n\n## log.disableUnicode()\n\nDisable the use of unicode in the progress bar.\n\n## log.setGaugeTemplate(template)\n\nSet a template for outputting the progress bar. See the [gauge documentation] for details.\n\n[gauge documentation]: https://npmjs.com/package/gauge\n\n## log.setGaugeThemeset(themes)\n\nSelect a themeset to pick themes from for the progress bar. See the [gauge documentation] for details.\n\n## log.pause()\n\nStop emitting messages to the stream, but do not drop them.\n\n## log.resume()\n\nEmit all buffered messages that were written while paused.\n\n## log.log(level, prefix, message, ...)\n\n* `level` {String} The level to emit the message at\n* `prefix` {String} A string prefix. Set to \"\" to skip.\n* `message...` Arguments to `util.format`\n\nEmit a log message at the specified level.\n\n## log\\[level](prefix, message, ...)\n\nFor example,\n\n* log.silly(prefix, message, ...)\n* log.verbose(prefix, message, ...)\n* log.info(prefix, message, ...)\n* log.http(prefix, message, ...)\n* log.warn(prefix, message, ...)\n* log.error(prefix, message, ...)\n\nLike `log.log(level, prefix, message, ...)`. In this way, each level is\ngiven a shorthand, so you can do `log.info(prefix, message)`.\n\n## log.addLevel(level, n, style, disp)\n\n* `level` {String} Level indicator\n* `n` {Number} The numeric level\n* `style` {Object} Object with fg, bg, inverse, etc.\n* `disp` {String} Optional replacement for `level` in the output.\n\nSets up a new level with a shorthand function and so forth.\n\nNote that if the number is `Infinity`, then setting the level to that\nwill cause all log messages to be suppressed. If the number is\n`-Infinity`, then the only way to show it is to enable all log messages.\n\n## log.newItem(name, todo, weight)\n\n* `name` {String} Optional; progress item name.\n* `todo` {Number} Optional; total amount of work to be done. Default 0.\n* `weight` {Number} Optional; the weight of this item relative to others. Default 1.\n\nThis adds a new `are-we-there-yet` item tracker to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `Tracker` object.\n\n## log.newStream(name, todo, weight)\n\nThis adds a new `are-we-there-yet` stream tracker to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `TrackerStream` object.\n\n## log.newGroup(name, weight)\n\nThis adds a new `are-we-there-yet` tracker group to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `TrackerGroup` object.\n\n# Events\n\nEvents are all emitted with the message object.\n\n* `log` Emitted for all messages\n* `log.<level>` Emitted for all messages with the `<level>` level.\n* `<prefix>` Messages with prefixes also emit their prefix as an event.\n\n# Style Objects\n\nStyle objects can have the following fields:\n\n* `fg` {String} Color for the foreground text\n* `bg` {String} Color for the background\n* `bold`, `inverse`, `underline` {Boolean} Set the associated property\n* `bell` {Boolean} Make a noise (This is pretty annoying, probably.)\n\n# Message Objects\n\nEvery log event is emitted with a message object, and the `log.record`\nlist contains all of them that have been created. They have the\nfollowing fields:\n\n* `id` {Number}\n* `level` {String}\n* `prefix` {String}\n* `message` {String} Result of `util.format()`\n* `messageRaw` {Array} Arguments to `util.format()`\n\n# Blocking TTYs\n\nWe use [`set-blocking`](https://npmjs.com/package/set-blocking) to set\nstderr and stdout blocking if they are tty's and have the setBlocking call.\nThis is a work around for an issue in early versions of Node.js 6.x, which\nmade stderr and stdout non-blocking on OSX. (They are always blocking\nWindows and were never blocking on Linux.) `npmlog` needs them to be blocking\nso that it can allow output to stdout and stderr to be interlaced.\n# function-bind\n\n<!--\n [![build status][travis-svg]][travis-url]\n [![NPM version][npm-badge-svg]][npm-url]\n [![Coverage Status][5]][6]\n [![gemnasium Dependency Status][7]][8]\n [![Dependency status][deps-svg]][deps-url]\n [![Dev Dependency status][dev-deps-svg]][dev-deps-url]\n-->\n\n<!-- [![browser support][11]][12] -->\n\nImplementation of function.prototype.bind\n\n## Example\n\nI mainly do this for unit tests I run on phantomjs.\nPhantomJS does not have Function.prototype.bind :(\n\n```js\nFunction.prototype.bind = require(\"function-bind\")\n```\n\n## Installation\n\n`npm install function-bind`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [travis-svg]: https://travis-ci.org/Raynos/function-bind.svg\n [travis-url]: https://travis-ci.org/Raynos/function-bind\n [npm-badge-svg]: https://badge.fury.io/js/function-bind.svg\n [npm-url]: https://npmjs.org/package/function-bind\n [5]: https://coveralls.io/repos/Raynos/function-bind/badge.png\n [6]: https://coveralls.io/r/Raynos/function-bind\n [7]: https://gemnasium.com/Raynos/function-bind.png\n [8]: https://gemnasium.com/Raynos/function-bind\n [deps-svg]: https://david-dm.org/Raynos/function-bind.svg\n [deps-url]: https://david-dm.org/Raynos/function-bind\n [dev-deps-svg]: https://david-dm.org/Raynos/function-bind/dev-status.svg\n [dev-deps-url]: https://david-dm.org/Raynos/function-bind#info=devDependencies\n [11]: https://ci.testling.com/Raynos/function-bind.png\n [12]: https://ci.testling.com/Raynos/function-bind\n> This README is for babel-loader v8 + Babel v7\n> Check the [7.x branch](https://github.com/babel/babel-loader/tree/7.x) for docs with Babel v6\n\n[](https://www.npmjs.com/package/babel-loader)\n[](https://travis-ci.org/babel/babel-loader)\n[](https://ci.appveyor.com/project/babel/babel-loader/branch/master)\n[](https://codecov.io/gh/babel/babel-loader)\n\n<div align=\"center\">\n <a href=\"https://github.com/babel/babel\">\n <img src=\"https://rawgit.com/babel/logo/master/babel.svg\" alt=\"Babel logo\" width=\"200\" height=\"200\">\n </a>\n <a href=\"https://github.com/webpack/webpack\">\n <img src=\"https://webpack.js.org/assets/icon-square-big.svg\" alt=\"webpack logo\" width=\"200\" height=\"200\">\n </a>\n</div>\n\n<h1 align=\"center\">Babel Loader</h1>\n\nThis package allows transpiling JavaScript files using [Babel](https://github.com/babel/babel) and [webpack](https://github.com/webpack/webpack).\n\n**Note**: Issues with the output should be reported on the Babel [Issues](https://github.com/babel/babel/issues) tracker.\n\n<h2 align=\"center\">Install</h2>\n\n> webpack 4.x | babel-loader 8.x | babel 7.x\n\n```bash\nnpm install -D babel-loader @babel/core @babel/preset-env webpack\n```\n\n> webpack 4.x | babel-loader 7.x | babel 6.x\n\n```bash\nnpm install -D babel-loader@7 babel-core babel-preset-env webpack\n```\n\n<h2 align=\"center\">Usage</h2>\n\nwebpack documentation: [Loaders](https://webpack.js.org/loaders/)\n\nWithin your webpack configuration object, you'll need to add the babel-loader to the list of modules, like so:\n\n```javascript\nmodule: {\n rules: [\n {\n test: /\\.m?js$/,\n exclude: /(node_modules|bower_components)/,\n use: {\n loader: 'babel-loader',\n options: {\n presets: ['@babel/preset-env']\n }\n }\n }\n ]\n}\n```\n\n### Options\n\nSee the `babel` [options](https://babeljs.io/docs/en/options).\n\nYou can pass options to the loader by using the [`options`](https://webpack.js.org/configuration/module/#rule-options-rule-query) property:\n\n```javascript\nmodule: {\n rules: [\n {\n test: /\\.m?js$/,\n exclude: /(node_modules|bower_components)/,\n use: {\n loader: 'babel-loader',\n options: {\n presets: ['@babel/preset-env'],\n plugins: ['@babel/plugin-proposal-object-rest-spread']\n }\n }\n }\n ]\n}\n```\n\nThis loader also supports the following loader-specific option:\n\n* `cacheDirectory`: Default `false`. When set, the given directory will be used to cache the results of the loader. Future webpack builds will attempt to read from the cache to avoid needing to run the potentially expensive Babel recompilation process on each run. If the value is blank (`loader: 'babel-loader?cacheDirectory'`) or `true` (`loader: 'babel-loader?cacheDirectory=true'`), the loader will use the default cache directory in `node_modules/.cache/babel-loader` or fallback to the default OS temporary file directory if no `node_modules` folder could be found in any root directory.\n\n* `cacheIdentifier`: Default is a string composed by the `babel-core`'s version, the `babel-loader`'s version, the contents of `.babelrc` file if it exists, and the value of the environment variable `BABEL_ENV` with a fallback to the `NODE_ENV` environment variable. This can be set to a custom value to force cache busting if the identifier changes.\n\n* `cacheCompression`: Default `true`. When set, each Babel transform output will be compressed with Gzip. If you want to opt-out of cache compression, set it to `false` -- your project may benefit from this if it transpiles thousands of files.\n\n* `customize`: Default `null`. The path of a module that exports a `custom` callback [like the one that you'd pass to `.custom()`](#customized-loader). Since you already have to make a new file to use this, it is recommended that you instead use `.custom` to create a wrapper loader. Only use this is you _must_ continue using `babel-loader` directly, but still want to customize.\n\n## Troubleshooting\n\n### babel-loader is slow!\n\nMake sure you are transforming as few files as possible. Because you are probably matching `/\\.m?js$/`, you might be transforming the `node_modules` folder or other unwanted source.\n\nTo exclude `node_modules`, see the `exclude` option in the `loaders` config as documented above.\n\nYou can also speed up babel-loader by as much as 2x by using the `cacheDirectory` option. This will cache transformations to the filesystem.\n\n### Babel is injecting helpers into each file and bloating my code!\n\nBabel uses very small helpers for common functions such as `_extend`. By default, this will be added to every file that requires it.\n\nYou can instead require the Babel runtime as a separate module to avoid the duplication.\n\nThe following configuration disables automatic per-file runtime injection in Babel, requiring `babel-plugin-transform-runtime` instead and making all helper references use it.\n\nSee the [docs](https://babeljs.io/docs/plugins/transform-runtime/) for more information.\n\n**NOTE**: You must run `npm install -D @babel/plugin-transform-runtime` to include this in your project and `babel-runtime` itself as a dependency with `npm install @babel/runtime`.\n\n```javascript\nrules: [\n // the 'transform-runtime' plugin tells Babel to\n // require the runtime instead of inlining it.\n {\n test: /\\.m?js$/,\n exclude: /(node_modules|bower_components)/,\n use: {\n loader: 'babel-loader',\n options: {\n presets: ['@babel/preset-env'],\n plugins: ['@babel/plugin-transform-runtime']\n }\n }\n }\n]\n```\n\n#### **NOTE**: transform-runtime & custom polyfills (e.g. Promise library)\n\nSince [babel-plugin-transform-runtime](https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-runtime) includes a polyfill that includes a custom [regenerator-runtime](https://github.com/facebook/regenerator/blob/master/packages/regenerator-runtime/runtime.js) and [core-js](https://github.com/zloirock/core-js), the following usual shimming method using `webpack.ProvidePlugin` will not work:\n\n```javascript\n// ...\n new webpack.ProvidePlugin({\n 'Promise': 'bluebird'\n }),\n// ...\n```\n\nThe following approach will not work either:\n\n```javascript\nrequire('@babel/runtime/core-js/promise').default = require('bluebird');\n\nvar promise = new Promise;\n```\n\nwhich outputs to (using `runtime`):\n\n```javascript\n'use strict';\n\nvar _Promise = require('@babel/runtime/core-js/promise')['default'];\n\nrequire('@babel/runtime/core-js/promise')['default'] = require('bluebird');\n\nvar promise = new _Promise();\n```\n\nThe previous `Promise` library is referenced and used before it is overridden.\n\nOne approach is to have a \"bootstrap\" step in your application that would first override the default globals before your application:\n\n```javascript\n// bootstrap.js\n\nrequire('@babel/runtime/core-js/promise').default = require('bluebird');\n\n// ...\n\nrequire('./app');\n```\n\n### The Node.js API for `babel` has been moved to `babel-core`.\n\nIf you receive this message, it means that you have the npm package `babel` installed and are using the short notation of the loader in the webpack config (which is not valid anymore as of webpack 2.x):\n```javascript\n {\n test: /\\.m?js$/,\n loader: 'babel',\n }\n```\n\nwebpack then tries to load the `babel` package instead of the `babel-loader`.\n\nTo fix this, you should uninstall the npm package `babel`, as it is deprecated in Babel v6. (Instead, install `babel-cli` or `babel-core`.)\nIn the case one of your dependencies is installing `babel` and you cannot uninstall it yourself, use the complete name of the loader in the webpack config:\n```javascript\n {\n test: /\\.m?js$/,\n loader: 'babel-loader',\n }\n```\n\n## Customized Loader\n\n`babel-loader` exposes a loader-builder utility that allows users to add custom handling\nof Babel's configuration for each file that it processes.\n\n`.custom` accepts a callback that will be called with the loader's instance of\n`babel` so that tooling can ensure that it using exactly the same `@babel/core`\ninstance as the loader itself.\n\nIn cases where you want to customize without actually having a file to call `.custom`, you\nmay also pass the `customize` option with a string pointing at a file that exports\nyour `custom` callback function.\n\n### Example\n\n```js\n// Export from \"./my-custom-loader.js\" or whatever you want.\nmodule.exports = require(\"babel-loader\").custom(babel => {\n function myPlugin() {\n return {\n visitor: {},\n };\n }\n\n return {\n // Passed the loader options.\n customOptions({ opt1, opt2, ...loader }) {\n return {\n // Pull out any custom options that the loader might have.\n custom: { opt1, opt2 },\n\n // Pass the options back with the two custom options removed.\n loader,\n };\n },\n\n // Passed Babel's 'PartialConfig' object.\n config(cfg) {\n if (cfg.hasFilesystemConfig()) {\n // Use the normal config\n return cfg.options;\n }\n\n return {\n ...cfg.options,\n plugins: [\n ...(cfg.options.plugins || []),\n\n // Include a custom plugin in the options.\n myPlugin,\n ],\n };\n },\n\n result(result) {\n return {\n ...result,\n code: result.code + \"\\n// Generated by some custom loader\",\n };\n },\n };\n});\n```\n\n```js\n// And in your Webpack config\nmodule.exports = {\n // ..\n module: {\n rules: [{\n // ...\n loader: path.join(__dirname, 'my-custom-loader.js'),\n // ...\n }]\n }\n};\n```\n\n### `customOptions(options: Object): { custom: Object, loader: Object }`\n\nGiven the loader's options, split custom options out of `babel-loader`'s\noptions.\n\n### `config(cfg: PartialConfig): Object`\n\nGiven Babel's `PartialConfig` object, return the `options` object that should\nbe passed to `babel.transform`.\n\n### `result(result: Result): Result`\n\nGiven Babel's result object, allow loaders to make additional tweaks to it.\n\n## License\n[MIT](https://couto.mit-license.org/)\n# unset-value [](https://www.npmjs.com/package/unset-value) [](https://npmjs.org/package/unset-value) [](https://npmjs.org/package/unset-value) [](https://travis-ci.org/jonschlinkert/unset-value)\n\n> Delete nested properties from an object using dot notation.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save unset-value\n```\n\n## Usage\n\n```js\nvar unset = require('unset-value');\n\nvar obj = {a: {b: {c: 'd', e: 'f'}}};\nunset(obj, 'a.b.c');\nconsole.log(obj);\n//=> {a: {b: {e: 'f'}}};\n```\n\n## Examples\n\n### Updates the object when a property is deleted\n\n```js\nvar obj = {a: 'b'};\nunset(obj, 'a');\nconsole.log(obj);\n//=> {}\n```\n\n### Returns true when a property is deleted\n\n```js\nunset({a: 'b'}, 'a') // true\n```\n\n### Returns `true` when a property does not exist\n\nThis is consistent with `delete` behavior in that it does not\nthrow when a property does not exist.\n\n```js\nunset({a: {b: {c: 'd'}}}, 'd') // true\n```\n\n### delete nested values\n\n```js\nvar one = {a: {b: {c: 'd'}}};\nunset(one, 'a.b');\nconsole.log(one);\n//=> {a: {}}\n\nvar two = {a: {b: {c: 'd'}}};\nunset(two, 'a.b.c');\nconsole.log(two);\n//=> {a: {b: {}}}\n\nvar three = {a: {b: {c: 'd', e: 'f'}}};\nunset(three, 'a.b.c');\nconsole.log(three);\n//=> {a: {b: {e: 'f'}}}\n```\n\n### throws on invalid args\n\n```js\nunset();\n// 'expected an object.'\n```\n\n## About\n\n### Related projects\n\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [get-values](https://www.npmjs.com/package/get-values): Return an array of all values from the given object. | [homepage](https://github.com/jonschlinkert/get-values \"Return an array of all values from the given object.\")\n* [omit-value](https://www.npmjs.com/package/omit-value): Omit properties from an object or deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/omit-value) | [homepage](https://github.com/jonschlinkert/omit-value \"Omit properties from an object or deeply nested property of an object using object path notation.\")\n* [put-value](https://www.npmjs.com/package/put-value): Update only existing values from an object, works with dot notation paths like `a.b.c` and… [more](https://github.com/tunnckocore/put-value#readme) | [homepage](https://github.com/tunnckocore/put-value#readme \"Update only existing values from an object, works with dot notation paths like `a.b.c` and support deep nesting.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [union-value](https://www.npmjs.com/package/union-value): Set an array of unique values as the property of an object. Supports setting deeply… [more](https://github.com/jonschlinkert/union-value) | [homepage](https://github.com/jonschlinkert/union-value \"Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.\")\n* [upsert-value](https://www.npmjs.com/package/upsert-value): Update or set nested values and any intermediaries with dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/doowb/upsert-value \"Update or set nested values and any intermediaries with dot notation (`'a.b.c'`) paths.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 6 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 25, 2017._\n# lodash v4.17.11\n\nThe [Lodash](https://lodash.com/) library exported as [Node.js](https://nodejs.org/) modules.\n\n## Installation\n\nUsing npm:\n```shell\n$ npm i -g npm\n$ npm i --save lodash\n```\n\nIn Node.js:\n```js\n// Load the full build.\nvar _ = require('lodash');\n// Load the core build.\nvar _ = require('lodash/core');\n// Load the FP build for immutable auto-curried iteratee-first data-last methods.\nvar fp = require('lodash/fp');\n\n// Load method categories.\nvar array = require('lodash/array');\nvar object = require('lodash/fp/object');\n\n// Cherry-pick methods for smaller browserify/rollup/webpack bundles.\nvar at = require('lodash/at');\nvar curryN = require('lodash/fp/curryN');\n```\n\nSee the [package source](https://github.com/lodash/lodash/tree/4.17.11-npm) for more details.\n\n**Note:**<br>\nInstall [n_](https://www.npmjs.com/package/n_) for Lodash use in the Node.js < 6 REPL.\n\n## Support\n\nTested in Chrome 68-69, Firefox 61-62, IE 11, Edge 17, Safari 10-11, Node.js 6-10, & PhantomJS 2.1.1.<br>\nAutomated [browser](https://saucelabs.com/u/lodash) & [CI](https://travis-ci.org/lodash/lodash/) test runs are available.\n# is-callable <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\n[![browser support][9]][10]\n\nIs this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.\n\n## Example\n\n```js\nvar isCallable = require('is-callable');\nvar assert = require('assert');\n\nassert.notOk(isCallable(undefined));\nassert.notOk(isCallable(null));\nassert.notOk(isCallable(false));\nassert.notOk(isCallable(true));\nassert.notOk(isCallable([]));\nassert.notOk(isCallable({}));\nassert.notOk(isCallable(/a/g));\nassert.notOk(isCallable(new RegExp('a', 'g')));\nassert.notOk(isCallable(new Date()));\nassert.notOk(isCallable(42));\nassert.notOk(isCallable(NaN));\nassert.notOk(isCallable(Infinity));\nassert.notOk(isCallable(new Number(42)));\nassert.notOk(isCallable('foo'));\nassert.notOk(isCallable(Object('foo')));\n\nassert.ok(isCallable(function () {}));\nassert.ok(isCallable(function* () {}));\nassert.ok(isCallable(x => x * x));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[1]: https://npmjs.org/package/is-callable\n[2]: http://versionbadg.es/ljharb/is-callable.svg\n[3]: https://travis-ci.org/ljharb/is-callable.svg\n[4]: https://travis-ci.org/ljharb/is-callable\n[5]: https://david-dm.org/ljharb/is-callable.svg\n[6]: https://david-dm.org/ljharb/is-callable\n[7]: https://david-dm.org/ljharb/is-callable/dev-status.svg\n[8]: https://david-dm.org/ljharb/is-callable#info=devDependencies\n[9]: https://ci.testling.com/ljharb/is-callable.png\n[10]: https://ci.testling.com/ljharb/is-callable\n[11]: https://nodei.co/npm/is-callable.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/is-callable.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/is-callable.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=is-callable\nLike `chown -R`.\n\nTakes the same arguments as `fs.chown()`\n# parse-asn1\n\n[](http://travis-ci.org/crypto-browserify/parse-asn1)\n[](https://www.npmjs.org/package/parse-asn1)\n\n[](https://github.com/feross/standard)\n\nutility library for parsing asn1 files for use with browserify-sign.\n# fresh\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nHTTP response freshness testing\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```\n$ npm install fresh\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar fresh = require('fresh')\n```\n\n### fresh(reqHeaders, resHeaders)\n\nCheck freshness of the response using request and response headers.\n\nWhen the response is still \"fresh\" in the client's cache `true` is\nreturned, otherwise `false` is returned to indicate that the client\ncache is now stale and the full response should be sent.\n\nWhen a client sends the `Cache-Control: no-cache` request header to\nindicate an end-to-end reload request, this module will return `false`\nto make handling these requests transparent.\n\n## Known Issues\n\nThis module is designed to only follow the HTTP specifications, not\nto work-around all kinda of client bugs (especially since this module\ntypically does not recieve enough information to understand what the\nclient actually is).\n\nThere is a known issue that in certain versions of Safari, Safari\nwill incorrectly make a request that allows this module to validate\nfreshness of the resource even when Safari does not have a\nrepresentation of the resource in the cache. The module\n[jumanji](https://www.npmjs.com/package/jumanji) can be used in\nan Express application to work-around this issue and also provides\nlinks to further reading on this Safari bug.\n\n## Example\n\n### API usage\n\n<!-- eslint-disable no-redeclare, no-undef -->\n\n```js\nvar reqHeaders = { 'if-none-match': '\"foo\"' }\nvar resHeaders = { 'etag': '\"bar\"' }\nfresh(reqHeaders, resHeaders)\n// => false\n\nvar reqHeaders = { 'if-none-match': '\"foo\"' }\nvar resHeaders = { 'etag': '\"foo\"' }\nfresh(reqHeaders, resHeaders)\n// => true\n```\n\n### Using with Node.js http server\n\n```js\nvar fresh = require('fresh')\nvar http = require('http')\n\nvar server = http.createServer(function (req, res) {\n // perform server logic\n // ... including adding ETag / Last-Modified response headers\n\n if (isFresh(req, res)) {\n // client has a fresh copy of resource\n res.statusCode = 304\n res.end()\n return\n }\n\n // send the resource\n res.statusCode = 200\n res.end('hello, world!')\n})\n\nfunction isFresh (req, res) {\n return fresh(req.headers, {\n 'etag': res.getHeader('ETag'),\n 'last-modified': res.getHeader('Last-Modified')\n })\n}\n\nserver.listen(3000)\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/fresh.svg\n[npm-url]: https://npmjs.org/package/fresh\n[node-version-image]: https://img.shields.io/node/v/fresh.svg\n[node-version-url]: https://nodejs.org/en/\n[travis-image]: https://img.shields.io/travis/jshttp/fresh/master.svg\n[travis-url]: https://travis-ci.org/jshttp/fresh\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/fresh?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/fresh.svg\n[downloads-url]: https://npmjs.org/package/fresh\n# which-module\n\n> Find the module object for something that was require()d\n\n[](https://travis-ci.org/nexdrew/which-module)\n[](https://coveralls.io/github/nexdrew/which-module?branch=master)\n[](https://github.com/conventional-changelog/standard-version)\n\nFind the `module` object in `require.cache` for something that was `require()`d\nor `import`ed - essentially a reverse `require()` lookup.\n\nUseful for libs that want to e.g. lookup a filename for a module or submodule\nthat it did not `require()` itself.\n\n## Install and Usage\n\n```\nnpm install --save which-module\n```\n\n```js\nconst whichModule = require('which-module')\n\nconsole.log(whichModule(require('something')))\n// Module {\n// id: '/path/to/project/node_modules/something/index.js',\n// exports: [Function],\n// parent: ...,\n// filename: '/path/to/project/node_modules/something/index.js',\n// loaded: true,\n// children: [],\n// paths: [ '/path/to/project/node_modules/something/node_modules',\n// '/path/to/project/node_modules',\n// '/path/to/node_modules',\n// '/path/node_modules',\n// '/node_modules' ] }\n```\n\n## API\n\n### `whichModule(exported)`\n\nReturn the [`module` object](https://nodejs.org/api/modules.html#modules_the_module_object),\nif any, that represents the given argument in the `require.cache`.\n\n`exported` can be anything that was previously `require()`d or `import`ed as a\nmodule, submodule, or dependency - which means `exported` is identical to the\n`module.exports` returned by this method.\n\nIf `exported` did not come from the `exports` of a `module` in `require.cache`,\nthen this method returns `null`.\n\n## License\n\nISC © Contributors\n# requires-port\n\n[](http://unshift.io)[](http://browsenpm.org/package/requires-port)[](https://travis-ci.org/unshiftio/requires-port)[](https://david-dm.org/unshiftio/requires-port)[](https://coveralls.io/r/unshiftio/requires-port?branch=master)[](http://webchat.freenode.net/?channels=unshift)\n\nThe module name says it all, check if a protocol requires a given port.\n\n## Installation\n\nThis module is intended to be used with browserify or Node.js and is distributed\nin the public npm registry. To install it simply run the following command from\nyour CLI:\n\n```j\nnpm install --save requires-port\n```\n\n## Usage\n\nThe module exports it self as function and requires 2 arguments:\n\n1. The port number, can be a string or number.\n2. Protocol, can be `http`, `http:` or even `https://yomoma.com`. We just split\n it at `:` and use the first result. We currently accept the following\n protocols:\n - `http`\n - `https`\n - `ws`\n - `wss`\n - `ftp`\n - `gopher`\n - `file`\n\nIt returns a boolean that indicates if protocol requires this port to be added\nto your URL.\n\n```js\n'use strict';\n\nvar required = require('requires-port');\n\nconsole.log(required('8080', 'http')) // true\nconsole.log(required('80', 'http')) // false\n```\n\n# License\n\nMIT\n<h1 align=\"center\">Neo-Async</h1>\n\n<p align=\"center\">\n <img src=\"https://raw.githubusercontent.com/wiki/suguru03/neo-async/images/neo_async_v2.png\" width=\"250px\" />\n</p>\n\n<p align=\"center\">\n <a href=\"https://www.npmjs.com/package/neo-async\"><img alt=\"npm\" src=\"https://img.shields.io/npm/v/neo-async.svg\"></a>\n <a href=\"https://travis-ci.org/suguru03/neo-async\"><img alt=\"Travis Status\" src=\"https://img.shields.io/travis/suguru03/neo-async.svg\"></a>\n <a href=\"https://codecov.io/gh/suguru03/neo-async\"><img alt=\"Coverage Status\" src=\"https://img.shields.io/codecov/c/github/suguru03/neo-async/master.svg\"></a>\n <a href=\"https://www.npmjs.com/package/neo-async\"><img alt=\"download\" src=\"https://img.shields.io/npm/dm/neo-async.svg\"></a>\n <a href=\"https://lgtm.com/projects/g/suguru03/neo-async/context:javascript\"><img src=\"https://img.shields.io/lgtm/grade/javascript/g/suguru03/neo-async.svg?logo=lgtm&logoWidth=18\" alt=\"Code Quality: Javascript\" height=\"18\"></a>\n <a href=\"https://lgtm.com/projects/g/suguru03/neo-async/alerts\"><img src=\"https://img.shields.io/lgtm/alerts/g/suguru03/neo-async.svg?logo=lgtm&logoWidth=18\" alt=\"Total Alerts\" height=\"18\"></a>\n</p>\n\nNeo-Async is thought to be used as a drop-in replacement for [Async](https://github.com/caolan/async), it almost fully covers its functionality and runs [faster](#benchmark).\n\nBenchmark is [here](#benchmark)!\n\nBluebird's benchmark is [here](https://github.com/suguru03/bluebird/tree/aigle/benchmark)!\n\n## Code Coverage\n\n\n## Installation\n\n### In a browser\n```html\n<script src=\"async.min.js\"></script>\n```\n\n### In an AMD loader\n```js\nrequire(['async'], function(async) {});\n```\n\n### Promise and async/await\n\nI recommend to use [`Aigle`](https://github.com/suguru03/aigle).\n\nIt is optimized for Promise handling and has almost the same functionality as `neo-async`.\n\n### Node.js\n\n#### standard\n\n```bash\n$ npm install neo-async\n```\n```js\nvar async = require('neo-async');\n```\n\n#### replacement\n```bash\n$ npm install neo-async\n$ ln -s ./node_modules/neo-async ./node_modules/async\n```\n```js\nvar async = require('async');\n```\n\n### Bower\n\n```bash\nbower install neo-async\n```\n\n## Feature\n\n[JSDoc](http://suguru03.github.io/neo-async/doc/async.html)\n\n\\* not in Async\n\n### Collections\n\n- [`each`](http://suguru03.github.io/neo-async/doc/async.each.html)\n- [`eachSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html)\n- [`eachLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html)\n- [`forEach`](http://suguru03.github.io/neo-async/doc/async.each.html) -> [`each`](http://suguru03.github.io/neo-async/doc/async.each.html)\n- [`forEachSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html) -> [`eachSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html)\n- [`forEachLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html) -> [`eachLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html)\n- [`eachOf`](http://suguru03.github.io/neo-async/doc/async.each.html) -> [`each`](http://suguru03.github.io/neo-async/doc/async.each.html)\n- [`eachOfSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html) -> [`eachSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html)\n- [`eachOfLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html) -> [`eachLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html)\n- [`forEachOf`](http://suguru03.github.io/neo-async/doc/async.each.html) -> [`each`](http://suguru03.github.io/neo-async/doc/async.each.html)\n- [`forEachOfSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html) -> [`eachSeries`](http://suguru03.github.io/neo-async/doc/async.eachSeries.html)\n- [`eachOfLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html) -> [`forEachLimit`](http://suguru03.github.io/neo-async/doc/async.eachLimit.html)\n- [`map`](http://suguru03.github.io/neo-async/doc/async.map.html)\n- [`mapSeries`](http://suguru03.github.io/neo-async/doc/async.mapSeries.html)\n- [`mapLimit`](http://suguru03.github.io/neo-async/doc/async.mapLimit.html)\n- [`mapValues`](http://suguru03.github.io/neo-async/doc/async.mapValues.html)\n- [`mapValuesSeries`](http://suguru03.github.io/neo-async/doc/async.mapValuesSeries.html)\n- [`mapValuesLimit`](http://suguru03.github.io/neo-async/doc/async.mapValuesLimit.html)\n- [`filter`](http://suguru03.github.io/neo-async/doc/async.filter.html)\n- [`filterSeries`](http://suguru03.github.io/neo-async/doc/async.filterSeries.html)\n- [`filterLimit`](http://suguru03.github.io/neo-async/doc/async.filterLimit.html)\n- [`select`](http://suguru03.github.io/neo-async/doc/async.filter.html) -> [`filter`](http://suguru03.github.io/neo-async/doc/async.filter.html)\n- [`selectSeries`](http://suguru03.github.io/neo-async/doc/async.filterSeries.html) -> [`filterSeries`](http://suguru03.github.io/neo-async/doc/async.filterSeries.html)\n- [`selectLimit`](http://suguru03.github.io/neo-async/doc/async.filterLimit.html) -> [`filterLimit`](http://suguru03.github.io/neo-async/doc/async.filterLimit.html)\n- [`reject`](http://suguru03.github.io/neo-async/doc/async.reject.html)\n- [`rejectSeries`](http://suguru03.github.io/neo-async/doc/async.rejectSeries.html)\n- [`rejectLimit`](http://suguru03.github.io/neo-async/doc/async.rejectLimit.html)\n- [`detect`](http://suguru03.github.io/neo-async/doc/async.detect.html)\n- [`detectSeries`](http://suguru03.github.io/neo-async/doc/async.detectSeries.html)\n- [`detectLimit`](http://suguru03.github.io/neo-async/doc/async.detectLimit.html)\n- [`find`](http://suguru03.github.io/neo-async/doc/async.detect.html) -> [`detect`](http://suguru03.github.io/neo-async/doc/async.detect.html)\n- [`findSeries`](http://suguru03.github.io/neo-async/doc/async.detectSeries.html) -> [`detectSeries`](http://suguru03.github.io/neo-async/doc/async.detectSeries.html)\n- [`findLimit`](http://suguru03.github.io/neo-async/doc/async.detectLimit.html) -> [`detectLimit`](http://suguru03.github.io/neo-async/doc/async.detectLimit.html)\n- [`pick`](http://suguru03.github.io/neo-async/doc/async.pick.html) *\n- [`pickSeries`](http://suguru03.github.io/neo-async/doc/async.pickSeries.html) *\n- [`pickLimit`](http://suguru03.github.io/neo-async/doc/async.pickLimit.html) *\n- [`omit`](http://suguru03.github.io/neo-async/doc/async.omit.html) *\n- [`omitSeries`](http://suguru03.github.io/neo-async/doc/async.omitSeries.html) *\n- [`omitLimit`](http://suguru03.github.io/neo-async/doc/async.omitLimit.html) *\n- [`reduce`](http://suguru03.github.io/neo-async/doc/async.reduce.html)\n- [`inject`](http://suguru03.github.io/neo-async/doc/async.reduce.html) -> [`reduce`](http://suguru03.github.io/neo-async/doc/async.reduce.html)\n- [`foldl`](http://suguru03.github.io/neo-async/doc/async.reduce.html) -> [`reduce`](http://suguru03.github.io/neo-async/doc/async.reduce.html)\n- [`reduceRight`](http://suguru03.github.io/neo-async/doc/async.reduceRight.html)\n- [`foldr`](http://suguru03.github.io/neo-async/doc/async.reduceRight.html) -> [`reduceRight`](http://suguru03.github.io/neo-async/doc/async.reduceRight.html)\n- [`transform`](http://suguru03.github.io/neo-async/doc/async.transform.html)\n- [`transformSeries`](http://suguru03.github.io/neo-async/doc/async.transformSeries.html) *\n- [`transformLimit`](http://suguru03.github.io/neo-async/doc/async.transformLimit.html) *\n- [`sortBy`](http://suguru03.github.io/neo-async/doc/async.sortBy.html)\n- [`sortBySeries`](http://suguru03.github.io/neo-async/doc/async.sortBySeries.html) *\n- [`sortByLimit`](http://suguru03.github.io/neo-async/doc/async.sortByLimit.html) *\n- [`some`](http://suguru03.github.io/neo-async/doc/async.some.html)\n- [`someSeries`](http://suguru03.github.io/neo-async/doc/async.someSeries.html)\n- [`someLimit`](http://suguru03.github.io/neo-async/doc/async.someLimit.html)\n- [`any`](http://suguru03.github.io/neo-async/doc/async.some.html) -> [`some`](http://suguru03.github.io/neo-async/doc/async.some.html)\n- [`anySeries`](http://suguru03.github.io/neo-async/doc/async.someSeries.html) -> [`someSeries`](http://suguru03.github.io/neo-async/doc/async.someSeries.html)\n- [`anyLimit`](http://suguru03.github.io/neo-async/doc/async.someLimit.html) -> [`someLimit`](http://suguru03.github.io/neo-async/doc/async.someLimit.html)\n- [`every`](http://suguru03.github.io/neo-async/doc/async.every.html)\n- [`everySeries`](http://suguru03.github.io/neo-async/doc/async.everySeries.html)\n- [`everyLimit`](http://suguru03.github.io/neo-async/doc/async.everyLimit.html)\n- [`all`](http://suguru03.github.io/neo-async/doc/async.every.html) -> [`every`](http://suguru03.github.io/neo-async/doc/async.every.html)\n- [`allSeries`](http://suguru03.github.io/neo-async/doc/async.everySeries.html) -> [`every`](http://suguru03.github.io/neo-async/doc/async.everySeries.html)\n- [`allLimit`](http://suguru03.github.io/neo-async/doc/async.everyLimit.html) -> [`every`](http://suguru03.github.io/neo-async/doc/async.everyLimit.html)\n- [`concat`](http://suguru03.github.io/neo-async/doc/async.concat.html)\n- [`concatSeries`](http://suguru03.github.io/neo-async/doc/async.concatSeries.html)\n- [`concatLimit`](http://suguru03.github.io/neo-async/doc/async.concatLimit.html) *\n\n### Control Flow\n\n- [`parallel`](http://suguru03.github.io/neo-async/doc/async.parallel.html)\n- [`series`](http://suguru03.github.io/neo-async/doc/async.series.html)\n- [`parallelLimit`](http://suguru03.github.io/neo-async/doc/async.series.html)\n- [`tryEach`](http://suguru03.github.io/neo-async/doc/async.tryEach.html)\n- [`waterfall`](http://suguru03.github.io/neo-async/doc/async.waterfall.html)\n- [`angelFall`](http://suguru03.github.io/neo-async/doc/async.angelFall.html) *\n- [`angelfall`](http://suguru03.github.io/neo-async/doc/async.angelFall.html) -> [`angelFall`](http://suguru03.github.io/neo-async/doc/async.angelFall.html) *\n- [`whilst`](#whilst)\n- [`doWhilst`](#doWhilst)\n- [`until`](#until)\n- [`doUntil`](#doUntil)\n- [`during`](#during)\n- [`doDuring`](#doDuring)\n- [`forever`](#forever)\n- [`compose`](#compose)\n- [`seq`](#seq)\n- [`applyEach`](#applyEach)\n- [`applyEachSeries`](#applyEachSeries)\n- [`queue`](#queue)\n- [`priorityQueue`](#priorityQueue)\n- [`cargo`](#cargo)\n- [`auto`](#auto)\n- [`autoInject`](#autoInject)\n- [`retry`](#retry)\n- [`retryable`](#retryable)\n- [`iterator`](#iterator)\n- [`times`](http://suguru03.github.io/neo-async/doc/async.times.html)\n- [`timesSeries`](http://suguru03.github.io/neo-async/doc/async.timesSeries.html)\n- [`timesLimit`](http://suguru03.github.io/neo-async/doc/async.timesLimit.html)\n- [`race`](#race)\n\n### Utils\n- [`apply`](#apply)\n- [`setImmediate`](#setImmediate)\n- [`nextTick`](#nextTick)\n- [`memoize`](#memoize)\n- [`unmemoize`](#unmemoize)\n- [`ensureAsync`](#ensureAsync)\n- [`constant`](#constant)\n- [`asyncify`](#asyncify)\n- [`wrapSync`](#asyncify) -> [`asyncify`](#asyncify)\n- [`log`](#log)\n- [`dir`](#dir)\n- [`timeout`](http://suguru03.github.io/neo-async/doc/async.timeout.html)\n- [`reflect`](#reflect)\n- [`reflectAll`](#reflectAll)\n- [`createLogger`](#createLogger)\n\n## Mode\n- [`safe`](#safe) *\n- [`fast`](#fast) *\n\n## Benchmark\n\n[Benchmark: Async vs Neo-Async](http://suguru03.hatenablog.com/entry/2016/06/10/135559)\n\n### How to check\n\n```bash\n$ node perf\n```\n\n### Environment\n\n* Darwin 17.3.0 x64\n* Node.js v8.9.4\n* async v2.6.0\n* neo-async v2.5.0\n* benchmark v2.1.4\n\n### Result\n\nThe value is the ratio (Neo-Async/Async) of the average speed.\n\n#### Collections\n|function|benchmark|\n|---|--:|\n|each/forEach|2.43|\n|eachSeries/forEachSeries|1.75|\n|eachLimit/forEachLimit|1.68|\n|eachOf|3.29|\n|eachOfSeries|1.50|\n|eachOfLimit|1.59|\n|map|3.95|\n|mapSeries|1.81|\n|mapLimit|1.27|\n|mapValues|2.73|\n|mapValuesSeries|1.59|\n|mapValuesLimit|1.23|\n|filter|3.00|\n|filterSeries|1.74|\n|filterLimit|1.17|\n|reject|4.59|\n|rejectSeries|2.31|\n|rejectLimit|1.58|\n|detect|4.30|\n|detectSeries|1.86|\n|detectLimit|1.32|\n|reduce|1.82|\n|transform|2.46|\n|sortBy|4.08|\n|some|2.19|\n|someSeries|1.83|\n|someLimit|1.32|\n|every|2.09|\n|everySeries|1.84|\n|everyLimit|1.35|\n|concat|3.79|\n|concatSeries|4.45|\n\n#### Control Flow\n|funciton|benchmark|\n|---|--:|\n|parallel|2.93|\n|series|1.96|\n|waterfall|1.29|\n|whilst|1.00|\n|doWhilst|1.12|\n|until|1.12|\n|doUntil|1.12|\n|during|1.18|\n|doDuring|2.42|\n|times|4.25|\n|auto|1.97|\nTweetNaCl.js\n============\n\nPort of [TweetNaCl](http://tweetnacl.cr.yp.to) / [NaCl](http://nacl.cr.yp.to/)\nto JavaScript for modern browsers and Node.js. Public domain.\n\n[\n](https://travis-ci.org/dchest/tweetnacl-js)\n\nDemo: <https://tweetnacl.js.org>\n\n**:warning: The library is stable and API is frozen, however it has not been\nindependently reviewed. If you can help reviewing it, please [contact\nme](mailto:dmitry@codingrobots.com).**\n\nDocumentation\n=============\n\n* [Overview](#overview)\n* [Installation](#installation)\n* [Usage](#usage)\n * [Public-key authenticated encryption (box)](#public-key-authenticated-encryption-box)\n * [Secret-key authenticated encryption (secretbox)](#secret-key-authenticated-encryption-secretbox)\n * [Scalar multiplication](#scalar-multiplication)\n * [Signatures](#signatures)\n * [Hashing](#hashing)\n * [Random bytes generation](#random-bytes-generation)\n * [Constant-time comparison](#constant-time-comparison)\n* [System requirements](#system-requirements)\n* [Development and testing](#development-and-testing)\n* [Benchmarks](#benchmarks)\n* [Contributors](#contributors)\n* [Who uses it](#who-uses-it)\n\nOverview\n--------\n\nThe primary goal of this project is to produce a translation of TweetNaCl to\nJavaScript which is as close as possible to the original C implementation, plus\na thin layer of idiomatic high-level API on top of it.\n\nThere are two versions, you can use either of them:\n\n* `nacl.js` is the port of TweetNaCl with minimum differences from the\n original + high-level API.\n\n* `nacl-fast.js` is like `nacl.js`, but with some functions replaced with\n faster versions.\n\nInstallation\n------------\n\nYou can install TweetNaCl.js via a package manager:\n\n[Bower](http://bower.io):\n\n $ bower install tweetnacl\n\n[NPM](https://www.npmjs.org/):\n\n $ npm install tweetnacl\n\nor [download source code](https://github.com/dchest/tweetnacl-js/releases).\n\nUsage\n-----\n\nAll API functions accept and return bytes as `Uint8Array`s. If you need to\nencode or decode strings, use functions from\n<https://github.com/dchest/tweetnacl-util-js> or one of the more robust codec\npackages.\n\nIn Node.js v4 and later `Buffer` objects are backed by `Uint8Array`s, so you\ncan freely pass them to TweetNaCl.js functions as arguments. The returned\nobjects are still `Uint8Array`s, so if you need `Buffer`s, you'll have to\nconvert them manually; make sure to convert using copying: `new Buffer(array)`,\ninstead of sharing: `new Buffer(array.buffer)`, because some functions return\nsubarrays of their buffers.\n\n### Public-key authenticated encryption (box)\n\nImplements *curve25519-xsalsa20-poly1305*.\n\n#### nacl.box.keyPair()\n\nGenerates a new random key pair for box and returns it as an object with\n`publicKey` and `secretKey` members:\n\n {\n publicKey: ..., // Uint8Array with 32-byte public key\n secretKey: ... // Uint8Array with 32-byte secret key\n }\n\n#### nacl.box.keyPair.fromSecretKey(secretKey)\n\nReturns a key pair for box with public key corresponding to the given secret\nkey.\n\n#### nacl.box(message, nonce, theirPublicKey, mySecretKey)\n\nEncrypt and authenticates message using peer's public key, our secret key, and\nthe given nonce, which must be unique for each distinct message for a key pair.\n\nReturns an encrypted and authenticated message, which is\n`nacl.box.overheadLength` longer than the original message.\n\n#### nacl.box.open(box, nonce, theirPublicKey, mySecretKey)\n\nAuthenticates and decrypts the given box with peer's public key, our secret\nkey, and the given nonce.\n\nReturns the original message, or `false` if authentication fails.\n\n#### nacl.box.before(theirPublicKey, mySecretKey)\n\nReturns a precomputed shared key which can be used in `nacl.box.after` and\n`nacl.box.open.after`.\n\n#### nacl.box.after(message, nonce, sharedKey)\n\nSame as `nacl.box`, but uses a shared key precomputed with `nacl.box.before`.\n\n#### nacl.box.open.after(box, nonce, sharedKey)\n\nSame as `nacl.box.open`, but uses a shared key precomputed with `nacl.box.before`.\n\n#### nacl.box.publicKeyLength = 32\n\nLength of public key in bytes.\n\n#### nacl.box.secretKeyLength = 32\n\nLength of secret key in bytes.\n\n#### nacl.box.sharedKeyLength = 32\n\nLength of precomputed shared key in bytes.\n\n#### nacl.box.nonceLength = 24\n\nLength of nonce in bytes.\n\n#### nacl.box.overheadLength = 16\n\nLength of overhead added to box compared to original message.\n\n### Secret-key authenticated encryption (secretbox)\n\nImplements *xsalsa20-poly1305*.\n\n#### nacl.secretbox(message, nonce, key)\n\nEncrypt and authenticates message using the key and the nonce. The nonce must\nbe unique for each distinct message for this key.\n\nReturns an encrypted and authenticated message, which is\n`nacl.secretbox.overheadLength` longer than the original message.\n\n#### nacl.secretbox.open(box, nonce, key)\n\nAuthenticates and decrypts the given secret box using the key and the nonce.\n\nReturns the original message, or `false` if authentication fails.\n\n#### nacl.secretbox.keyLength = 32\n\nLength of key in bytes.\n\n#### nacl.secretbox.nonceLength = 24\n\nLength of nonce in bytes.\n\n#### nacl.secretbox.overheadLength = 16\n\nLength of overhead added to secret box compared to original message.\n\n### Scalar multiplication\n\nImplements *curve25519*.\n\n#### nacl.scalarMult(n, p)\n\nMultiplies an integer `n` by a group element `p` and returns the resulting\ngroup element.\n\n#### nacl.scalarMult.base(n)\n\nMultiplies an integer `n` by a standard group element and returns the resulting\ngroup element.\n\n#### nacl.scalarMult.scalarLength = 32\n\nLength of scalar in bytes.\n\n#### nacl.scalarMult.groupElementLength = 32\n\nLength of group element in bytes.\n\n### Signatures\n\nImplements [ed25519](http://ed25519.cr.yp.to).\n\n#### nacl.sign.keyPair()\n\nGenerates new random key pair for signing and returns it as an object with\n`publicKey` and `secretKey` members:\n\n {\n publicKey: ..., // Uint8Array with 32-byte public key\n secretKey: ... // Uint8Array with 64-byte secret key\n }\n\n#### nacl.sign.keyPair.fromSecretKey(secretKey)\n\nReturns a signing key pair with public key corresponding to the given\n64-byte secret key. The secret key must have been generated by\n`nacl.sign.keyPair` or `nacl.sign.keyPair.fromSeed`.\n\n#### nacl.sign.keyPair.fromSeed(seed)\n\nReturns a new signing key pair generated deterministically from a 32-byte seed.\nThe seed must contain enough entropy to be secure. This method is not\nrecommended for general use: instead, use `nacl.sign.keyPair` to generate a new\nkey pair from a random seed.\n\n#### nacl.sign(message, secretKey)\n\nSigns the message using the secret key and returns a signed message.\n\n#### nacl.sign.open(signedMessage, publicKey)\n\nVerifies the signed message and returns the message without signature.\n\nReturns `null` if verification failed.\n\n#### nacl.sign.detached(message, secretKey)\n\nSigns the message using the secret key and returns a signature.\n\n#### nacl.sign.detached.verify(message, signature, publicKey)\n\nVerifies the signature for the message and returns `true` if verification\nsucceeded or `false` if it failed.\n\n#### nacl.sign.publicKeyLength = 32\n\nLength of signing public key in bytes.\n\n#### nacl.sign.secretKeyLength = 64\n\nLength of signing secret key in bytes.\n\n#### nacl.sign.seedLength = 32\n\nLength of seed for `nacl.sign.keyPair.fromSeed` in bytes.\n\n#### nacl.sign.signatureLength = 64\n\nLength of signature in bytes.\n\n### Hashing\n\nImplements *SHA-512*.\n\n#### nacl.hash(message)\n\nReturns SHA-512 hash of the message.\n\n#### nacl.hash.hashLength = 64\n\nLength of hash in bytes.\n\n### Random bytes generation\n\n#### nacl.randomBytes(length)\n\nReturns a `Uint8Array` of the given length containing random bytes of\ncryptographic quality.\n\n**Implementation note**\n\nTweetNaCl.js uses the following methods to generate random bytes,\ndepending on the platform it runs on:\n\n* `window.crypto.getRandomValues` (WebCrypto standard)\n* `window.msCrypto.getRandomValues` (Internet Explorer 11)\n* `crypto.randomBytes` (Node.js)\n\nIf the platform doesn't provide a suitable PRNG, the following functions,\nwhich require random numbers, will throw exception:\n\n* `nacl.randomBytes`\n* `nacl.box.keyPair`\n* `nacl.sign.keyPair`\n\nOther functions are deterministic and will continue working.\n\nIf a platform you are targeting doesn't implement secure random number\ngenerator, but you somehow have a cryptographically-strong source of entropy\n(not `Math.random`!), and you know what you are doing, you can plug it into\nTweetNaCl.js like this:\n\n nacl.setPRNG(function(x, n) {\n // ... copy n random bytes into x ...\n });\n\nNote that `nacl.setPRNG` *completely replaces* internal random byte generator\nwith the one provided.\n\n### Constant-time comparison\n\n#### nacl.verify(x, y)\n\nCompares `x` and `y` in constant time and returns `true` if their lengths are\nnon-zero and equal, and their contents are equal.\n\nReturns `false` if either of the arguments has zero length, or arguments have\ndifferent lengths, or their contents differ.\n\nSystem requirements\n-------------------\n\nTweetNaCl.js supports modern browsers that have a cryptographically secure\npseudorandom number generator and typed arrays, including the latest versions\nof:\n\n* Chrome\n* Firefox\n* Safari (Mac, iOS)\n* Internet Explorer 11\n\nOther systems:\n\n* Node.js\n\nDevelopment and testing\n------------------------\n\nInstall NPM modules needed for development:\n\n $ npm install\n\nTo build minified versions:\n\n $ npm run build\n\nTests use minified version, so make sure to rebuild it every time you change\n`nacl.js` or `nacl-fast.js`.\n\n### Testing\n\nTo run tests in Node.js:\n\n $ npm run test-node\n\nBy default all tests described here work on `nacl.min.js`. To test other\nversions, set environment variable `NACL_SRC` to the file name you want to test.\nFor example, the following command will test fast minified version:\n\n $ NACL_SRC=nacl-fast.min.js npm run test-node\n\nTo run full suite of tests in Node.js, including comparing outputs of\nJavaScript port to outputs of the original C version:\n\n $ npm run test-node-all\n\nTo prepare tests for browsers:\n\n $ npm run build-test-browser\n\nand then open `test/browser/test.html` (or `test/browser/test-fast.html`) to\nrun them.\n\nTo run headless browser tests with `tape-run` (powered by Electron):\n\n $ npm run test-browser\n\n(If you get `Error: spawn ENOENT`, install *xvfb*: `sudo apt-get install xvfb`.)\n\nTo run tests in both Node and Electron:\n\n $ npm test\n\n### Benchmarking\n\nTo run benchmarks in Node.js:\n\n $ npm run bench\n $ NACL_SRC=nacl-fast.min.js npm run bench\n\nTo run benchmarks in a browser, open `test/benchmark/bench.html` (or\n`test/benchmark/bench-fast.html`).\n\nBenchmarks\n----------\n\nFor reference, here are benchmarks from MacBook Pro (Retina, 13-inch, Mid 2014)\nlaptop with 2.6 GHz Intel Core i5 CPU (Intel) in Chrome 53/OS X and Xiaomi Redmi\nNote 3 smartphone with 1.8 GHz Qualcomm Snapdragon 650 64-bit CPU (ARM) in\nChrome 52/Android:\n\n| | nacl.js Intel | nacl-fast.js Intel | nacl.js ARM | nacl-fast.js ARM |\n| ------------- |:-------------:|:-------------------:|:-------------:|:-----------------:|\n| salsa20 | 1.3 MB/s | 128 MB/s | 0.4 MB/s | 43 MB/s |\n| poly1305 | 13 MB/s | 171 MB/s | 4 MB/s | 52 MB/s |\n| hash | 4 MB/s | 34 MB/s | 0.9 MB/s | 12 MB/s |\n| secretbox 1K | 1113 op/s | 57583 op/s | 334 op/s | 14227 op/s |\n| box 1K | 145 op/s | 718 op/s | 37 op/s | 368 op/s |\n| scalarMult | 171 op/s | 733 op/s | 56 op/s | 380 op/s |\n| sign | 77 op/s | 200 op/s | 20 op/s | 61 op/s |\n| sign.open | 39 op/s | 102 op/s | 11 op/s | 31 op/s |\n\n(You can run benchmarks on your devices by clicking on the links at the bottom\nof the [home page](https://tweetnacl.js.org)).\n\nIn short, with *nacl-fast.js* and 1024-byte messages you can expect to encrypt and\nauthenticate more than 57000 messages per second on a typical laptop or more than\n14000 messages per second on a $170 smartphone, sign about 200 and verify 100\nmessages per second on a laptop or 60 and 30 messages per second on a smartphone,\nper CPU core (with Web Workers you can do these operations in parallel),\nwhich is good enough for most applications.\n\nContributors\n------------\n\nSee AUTHORS.md file.\n\nThird-party libraries based on TweetNaCl.js\n-------------------------------------------\n\n* [forward-secrecy](https://github.com/alax/forward-secrecy) — Axolotl ratchet implementation\n* [nacl-stream](https://github.com/dchest/nacl-stream-js) - streaming encryption\n* [tweetnacl-auth-js](https://github.com/dchest/tweetnacl-auth-js) — implementation of [`crypto_auth`](http://nacl.cr.yp.to/auth.html)\n* [chloride](https://github.com/dominictarr/chloride) - unified API for various NaCl modules\n\nWho uses it\n-----------\n\nSome notable users of TweetNaCl.js:\n\n* [miniLock](http://minilock.io/)\n* [Stellar](https://www.stellar.org/)\n[](http://travis-ci.org/dankogai/js-base64)\n\n# base64.js\n\nYet another Base64 transcoder\n\n## Install\n\n```javascript\n$ npm install --save js-base64\n```\n\nIf you are using it on ES6 transpilers, you may also need:\n\n```javascript\n$ npm install --save babel-preset-env\n```\n\nNote `js-base64` itself is stand-alone so its `package.json` has no `dependencies`. However, it is also tested on ES6 environment so `\"babel-preset-env\": \"^1.7.0\"` is on `devDependencies`.\n\n## Usage\n\n### In Browser\n\n```html\n<script src=\"base64.js\"></script>\n```\n\n### node.js\n\n```javascript\nvar Base64 = require('js-base64').Base64;\n```\n\n## es6+\n\n```javascript\nimport { Base64 } from 'js-base64';\n```\n\n## SYNOPSIS\n\n```javascript\nBase64.encode('dankogai'); // ZGFua29nYWk=\nBase64.encode('小飼弾'); // 5bCP6aO85by+\nBase64.encodeURI('小飼弾'); // 5bCP6aO85by-\n\nBase64.decode('ZGFua29nYWk='); // dankogai\nBase64.decode('5bCP6aO85by+'); // 小飼弾\n// note .decodeURI() is unnecessary since it accepts both flavors\nBase64.decode('5bCP6aO85by-'); // 小飼弾\n```\n\n### String Extension for ES5\n\n```javascript\nif (Base64.extendString) {\n // you have to explicitly extend String.prototype\n Base64.extendString();\n // once extended, you can do the following\n 'dankogai'.toBase64(); // ZGFua29nYWk=\n '小飼弾'.toBase64(); // 5bCP6aO85by+\n '小飼弾'.toBase64(true); // 5bCP6aO85by-\n '小飼弾'.toBase64URI(); // 5bCP6aO85by-\n 'ZGFua29nYWk='.fromBase64(); // dankogai\n '5bCP6aO85by+'.fromBase64(); // 小飼弾\n '5bCP6aO85by-'.fromBase64(); // 小飼弾\n}\n```\n\n### TypeScript\n\nTypeScript 2.0 type definition was added to the [DefinitelyTyped repository](https://github.com/DefinitelyTyped/DefinitelyTyped).\n\n```bash\n$ npm install --save @types/js-base64\n```\n\n## `.decode()` vs `.atob` (and `.encode()` vs `btoa()`)\n\nSuppose you have:\n\n```\nvar pngBase64 = \n \"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\";\n```\n\nWhich is a Base64-encoded 1x1 transparent PNG, **DO NOT USE** `Base64.decode(pngBase64)`. Use `Base64.atob(pngBase64)` instead. `Base64.decode()` decodes to UTF-8 string while `Base64.atob()` decodes to bytes, which is compatible to browser built-in `atob()` (Which is absent in node.js). The same rule applies to the opposite direction.\n\n## SEE ALSO\n\n+ http://en.wikipedia.org/wiki/Base64\n# media-typer\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nSimple RFC 6838 media type parser\n\n## Installation\n\n```sh\n$ npm install media-typer\n```\n\n## API\n\n```js\nvar typer = require('media-typer')\n```\n\n### typer.parse(string)\n\n```js\nvar obj = typer.parse('image/svg+xml; charset=utf-8')\n```\n\nParse a media type string. This will return an object with the following\nproperties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):\n\n - `type`: The type of the media type (always lower case). Example: `'image'`\n\n - `subtype`: The subtype of the media type (always lower case). Example: `'svg'`\n\n - `suffix`: The suffix of the media type (always lower case). Example: `'xml'`\n\n - `parameters`: An object of the parameters in the media type (name of parameter always lower case). Example: `{charset: 'utf-8'}`\n\n### typer.parse(req)\n\n```js\nvar obj = typer.parse(req)\n```\n\nParse the `content-type` header from the given `req`. Short-cut for\n`typer.parse(req.headers['content-type'])`.\n\n### typer.parse(res)\n\n```js\nvar obj = typer.parse(res)\n```\n\nParse the `content-type` header set on the given `res`. Short-cut for\n`typer.parse(res.getHeader('content-type'))`.\n\n### typer.format(obj)\n\n```js\nvar obj = typer.format({type: 'image', subtype: 'svg', suffix: 'xml'})\n```\n\nFormat an object into a media type string. This will return a string of the\nmime type for the given object. For the properties of the object, see the\ndocumentation for `typer.parse(string)`.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/media-typer.svg?style=flat\n[npm-url]: https://npmjs.org/package/media-typer\n[node-version-image]: https://img.shields.io/badge/node.js-%3E%3D_0.6-brightgreen.svg?style=flat\n[node-version-url]: http://nodejs.org/download/\n[travis-image]: https://img.shields.io/travis/jshttp/media-typer.svg?style=flat\n[travis-url]: https://travis-ci.org/jshttp/media-typer\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/media-typer.svg?style=flat\n[coveralls-url]: https://coveralls.io/r/jshttp/media-typer\n[downloads-image]: https://img.shields.io/npm/dm/media-typer.svg?style=flat\n[downloads-url]: https://npmjs.org/package/media-typer\n# faye-websocket\n\n* Travis CI build: [](http://travis-ci.org/faye/faye-websocket-node)\n* Autobahn tests: [server](http://faye.jcoglan.com/autobahn/servers/),\n [client](http://faye.jcoglan.com/autobahn/clients/)\n\nThis is a general-purpose WebSocket implementation extracted from the\n[Faye](http://faye.jcoglan.com) project. It provides classes for easily building\nWebSocket servers and clients in Node. It does not provide a server itself, but\nrather makes it easy to handle WebSocket connections within an existing\n[Node](http://nodejs.org/) application. It does not provide any abstraction\nother than the standard [WebSocket API](http://dev.w3.org/html5/websockets/).\n\nIt also provides an abstraction for handling\n[EventSource](http://dev.w3.org/html5/eventsource/) connections, which are\none-way connections that allow the server to push data to the client. They are\nbased on streaming HTTP responses and can be easier to access via proxies than\nWebSockets.\n\n## Installation\n\n```\n$ npm install faye-websocket\n```\n\n## Handling WebSocket connections in Node\n\nYou can handle WebSockets on the server side by listening for HTTP Upgrade\nrequests, and creating a new socket for the request. This socket object exposes\nthe usual WebSocket methods for receiving and sending messages. For example this\nis how you'd implement an echo server:\n\n```js\nvar WebSocket = require('faye-websocket'),\n http = require('http');\n\nvar server = http.createServer();\n\nserver.on('upgrade', function(request, socket, body) {\n if (WebSocket.isWebSocket(request)) {\n var ws = new WebSocket(request, socket, body);\n \n ws.on('message', function(event) {\n ws.send(event.data);\n });\n \n ws.on('close', function(event) {\n console.log('close', event.code, event.reason);\n ws = null;\n });\n }\n});\n\nserver.listen(8000);\n```\n\n`WebSocket` objects are also duplex streams, so you could replace the\n`ws.on('message', ...)` line with:\n\n```js\n ws.pipe(ws);\n```\n\nNote that under certain circumstances (notably a draft-76 client connecting\nthrough an HTTP proxy), the WebSocket handshake will not be complete after you\ncall `new WebSocket()` because the server will not have received the entire\nhandshake from the client yet. In this case, calls to `ws.send()` will buffer\nthe message in memory until the handshake is complete, at which point any\nbuffered messages will be sent to the client.\n\nIf you need to detect when the WebSocket handshake is complete, you can use the\n`onopen` event.\n\nIf the connection's protocol version supports it, you can call `ws.ping()` to\nsend a ping message and wait for the client's response. This method takes a\nmessage string, and an optional callback that fires when a matching pong message\nis received. It returns `true` if and only if a ping message was sent. If the\nclient does not support ping/pong, this method sends no data and returns\n`false`.\n\n```js\nws.ping('Mic check, one, two', function() {\n // fires when pong is received\n});\n```\n\n## Using the WebSocket client\n\nThe client supports both the plain-text `ws` protocol and the encrypted `wss`\nprotocol, and has exactly the same interface as a socket you would use in a web\nbrowser. On the wire it identifies itself as `hybi-13`.\n\n```js\nvar WebSocket = require('faye-websocket'),\n ws = new WebSocket.Client('ws://www.example.com/');\n\nws.on('open', function(event) {\n console.log('open');\n ws.send('Hello, world!');\n});\n\nws.on('message', function(event) {\n console.log('message', event.data);\n});\n\nws.on('close', function(event) {\n console.log('close', event.code, event.reason);\n ws = null;\n});\n```\n\nThe WebSocket client also lets you inspect the status and headers of the\nhandshake response via its `statusCode` and `headers` properties.\n\nTo connect via a proxy, set the `proxy` option to the HTTP origin of the proxy,\nincluding any authorization information, custom headers and TLS config you\nrequire. Only the `origin` setting is required.\n\n```js\nvar ws = new WebSocket.Client('ws://www.example.com/', [], {\n proxy: {\n origin: 'http://username:password@proxy.example.com',\n headers: {'User-Agent': 'node'},\n tls: {cert: fs.readFileSync('client.crt')}\n }\n});\n```\n\nThe `tls` value is a Node 'TLS options' object that will be passed to\n[`tls.connect()`](http://nodejs.org/api/tls.html#tls_tls_connect_options_callback).\n\n## Subprotocol negotiation\n\nThe WebSocket protocol allows peers to select and identify the application\nprotocol to use over the connection. On the client side, you can set which\nprotocols the client accepts by passing a list of protocol names when you\nconstruct the socket:\n\n```js\nvar ws = new WebSocket.Client('ws://www.example.com/', ['irc', 'amqp']);\n```\n\nOn the server side, you can likewise pass in the list of protocols the server\nsupports after the other constructor arguments:\n\n```js\nvar ws = new WebSocket(request, socket, body, ['irc', 'amqp']);\n```\n\nIf the client and server agree on a protocol, both the client- and server-side\nsocket objects expose the selected protocol through the `ws.protocol` property.\n\n## Protocol extensions\n\nfaye-websocket is based on the\n[websocket-extensions](https://github.com/faye/websocket-extensions-node)\nframework that allows extensions to be negotiated via the\n`Sec-WebSocket-Extensions` header. To add extensions to a connection, pass an\narray of extensions to the `:extensions` option. For example, to add\n[permessage-deflate](https://github.com/faye/permessage-deflate-node):\n\n```js\nvar deflate = require('permessage-deflate');\n\nvar ws = new WebSocket(request, socket, body, [], {extensions: [deflate]});\n```\n\n## Initialization options\n\nBoth the server- and client-side classes allow an options object to be passed in\nat initialization time, for example:\n\n```js\nvar ws = new WebSocket(request, socket, body, protocols, options);\nvar ws = new WebSocket.Client(url, protocols, options);\n```\n\n`protocols` is an array of subprotocols as described above, or `null`.\n`options` is an optional object containing any of these fields:\n\n* `extensions` - an array of\n [websocket-extensions](https://github.com/faye/websocket-extensions-node)\n compatible extensions, as described above\n* `headers` - an object containing key-value pairs representing HTTP headers to\n be sent during the handshake process\n* `maxLength` - the maximum allowed size of incoming message frames, in bytes.\n The default value is `2^26 - 1`, or 1 byte short of 64 MiB.\n* `ping` - an integer that sets how often the WebSocket should send ping frames,\n measured in seconds\n\nThe client accepts some additional options:\n\n* `proxy` - settings for a proxy as described above\n* `tls` - a Node 'TLS options' object containing TLS settings for the origin\n server, this will be passed to\n [`tls.connect()`](http://nodejs.org/api/tls.html#tls_tls_connect_options_callback)\n* `ca` - (legacy) a shorthand for passing `{tls: {ca: value}}`\n\n## WebSocket API\n\nBoth server- and client-side `WebSocket` objects support the following API.\n\n* <b>`on('open', function(event) {})`</b> fires when the socket connection is\n established. Event has no attributes.\n* <b>`on('message', function(event) {})`</b> fires when the socket receives a\n message. Event has one attribute, <b>`data`</b>, which is either a `String`\n (for text frames) or a `Buffer` (for binary frames).\n* <b>`on('error', function(event) {})`</b> fires when there is a protocol error\n due to bad data sent by the other peer. This event is purely informational,\n you do not need to implement error recover.\n* <b>`on('close', function(event) {})`</b> fires when either the client or the\n server closes the connection. Event has two optional attributes, <b>`code`</b>\n and <b>`reason`</b>, that expose the status code and message sent by the peer\n that closed the connection.\n* <b>`send(message)`</b> accepts either a `String` or a `Buffer` and sends a\n text or binary message over the connection to the other peer.\n* <b>`ping(message, function() {})`</b> sends a ping frame with an optional\n message and fires the callback when a matching pong is received.\n* <b>`close(code, reason)`</b> closes the connection, sending the given status\n code and reason text, both of which are optional.\n* <b>`version`</b> is a string containing the version of the `WebSocket`\n protocol the connection is using.\n* <b>`protocol`</b> is a string (which may be empty) identifying the subprotocol\n the socket is using.\n\n## Handling EventSource connections in Node\n\nEventSource connections provide a very similar interface, although because they\nonly allow the server to send data to the client, there is no `onmessage` API.\nEventSource allows the server to push text messages to the client, where each\nmessage has an optional event-type and ID.\n\n```js\nvar WebSocket = require('faye-websocket'),\n EventSource = WebSocket.EventSource,\n http = require('http');\n\nvar server = http.createServer();\n\nserver.on('request', function(request, response) {\n if (EventSource.isEventSource(request)) {\n var es = new EventSource(request, response);\n console.log('open', es.url, es.lastEventId);\n \n // Periodically send messages\n var loop = setInterval(function() { es.send('Hello') }, 1000);\n \n es.on('close', function() {\n clearInterval(loop);\n es = null;\n });\n \n } else {\n // Normal HTTP request\n response.writeHead(200, {'Content-Type': 'text/plain'});\n response.end('Hello');\n }\n});\n\nserver.listen(8000);\n```\n\nThe `send` method takes two optional parameters, `event` and `id`. The default\nevent-type is `'message'` with no ID. For example, to send a `notification`\nevent with ID `99`:\n\n```js\nes.send('Breaking News!', {event: 'notification', id: '99'});\n```\n\nThe `EventSource` object exposes the following properties:\n\n* <b>`url`</b> is a string containing the URL the client used to create the\n EventSource.\n* <b>`lastEventId`</b> is a string containing the last event ID received by the\n client. You can use this when the client reconnects after a dropped connection\n to determine which messages need resending.\n\nWhen you initialize an EventSource with ` new EventSource()`, you can pass\nconfiguration options after the `response` parameter. Available options are:\n\n* <b>`headers`</b> is an object containing custom headers to be set on the\n EventSource response.\n* <b>`retry`</b> is a number that tells the client how long (in seconds) it\n should wait after a dropped connection before attempting to reconnect.\n* <b>`ping`</b> is a number that tells the server how often (in seconds) to send\n 'ping' packets to the client to keep the connection open, to defeat timeouts\n set by proxies. The client will ignore these messages.\n\nFor example, this creates a connection that allows access from any origin, pings\nevery 15 seconds and is retryable every 10 seconds if the connection is broken:\n\n```js\nvar es = new EventSource(request, response, {\n headers: {'Access-Control-Allow-Origin': '*'},\n ping: 15,\n retry: 10\n});\n```\n\nYou can send a ping message at any time by calling `es.ping()`. Unlike\nWebSocket, the client does not send a response to this; it is merely to send\nsome data over the wire to keep the connection alive.\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2010-2015 James Coglan\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the 'Software'), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\nFOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\nCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\nIN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\nCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# mime-types\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nThe ultimate javascript content-type utility.\n\nSimilar to [the `mime@1.x` module](https://www.npmjs.com/package/mime), except:\n\n- __No fallbacks.__ Instead of naively returning the first available type,\n `mime-types` simply returns `false`, so do\n `var type = mime.lookup('unrecognized') || 'application/octet-stream'`.\n- No `new Mime()` business, so you could do `var lookup = require('mime-types').lookup`.\n- No `.define()` functionality\n- Bug fixes for `.lookup(path)`\n\nOtherwise, the API is compatible with `mime` 1.x.\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install mime-types\n```\n\n## Adding Types\n\nAll mime types are based on [mime-db](https://www.npmjs.com/package/mime-db),\nso open a PR there if you'd like to add mime types.\n\n## API\n\n```js\nvar mime = require('mime-types')\n```\n\nAll functions return `false` if input is invalid or not found.\n\n### mime.lookup(path)\n\nLookup the content-type associated with a file.\n\n```js\nmime.lookup('json') // 'application/json'\nmime.lookup('.md') // 'text/markdown'\nmime.lookup('file.html') // 'text/html'\nmime.lookup('folder/file.js') // 'application/javascript'\nmime.lookup('folder/.htaccess') // false\n\nmime.lookup('cats') // false\n```\n\n### mime.contentType(type)\n\nCreate a full content-type header given a content-type or extension.\nWhen given an extension, `mime.lookup` is used to get the matching\ncontent-type, otherwise the given content-type is used. Then if the\ncontent-type does not already have a `charset` parameter, `mime.charset`\nis used to get the default charset and add to the returned content-type.\n\n```js\nmime.contentType('markdown') // 'text/x-markdown; charset=utf-8'\nmime.contentType('file.json') // 'application/json; charset=utf-8'\nmime.contentType('text/html') // 'text/html; charset=utf-8'\nmime.contentType('text/html; charset=iso-8859-1') // 'text/html; charset=iso-8859-1'\n\n// from a full path\nmime.contentType(path.extname('/path/to/file.json')) // 'application/json; charset=utf-8'\n```\n\n### mime.extension(type)\n\nGet the default extension for a content-type.\n\n```js\nmime.extension('application/octet-stream') // 'bin'\n```\n\n### mime.charset(type)\n\nLookup the implied default charset of a content-type.\n\n```js\nmime.charset('text/markdown') // 'UTF-8'\n```\n\n### var type = mime.types[extension]\n\nA map of content-types by extension.\n\n### [extensions...] = mime.extensions[type]\n\nA map of extensions by content-type.\n\n## License\n\n[MIT](LICENSE)\n\n[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-types/master\n[coveralls-url]: https://coveralls.io/r/jshttp/mime-types?branch=master\n[node-version-image]: https://badgen.net/npm/node/mime-types\n[node-version-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/mime-types\n[npm-url]: https://npmjs.org/package/mime-types\n[npm-version-image]: https://badgen.net/npm/v/mime-types\n[travis-image]: https://badgen.net/travis/jshttp/mime-types/master\n[travis-url]: https://travis-ci.org/jshttp/mime-types\n# regexpu-core [](https://travis-ci.org/mathiasbynens/regexpu-core) [](https://codecov.io/gh/mathiasbynens/regexpu-core)\n\n_regexpu_ is a source code transpiler that enables the use of ES6 Unicode regular expressions in JavaScript-of-today (ES5).\n\n_regexpu-core_ contains _regexpu_’s core functionality, i.e. `rewritePattern(pattern, flag)`, which enables rewriting regular expressions that make use of [the ES6 `u` flag](https://mathiasbynens.be/notes/es6-unicode-regex) into equivalent ES5-compatible regular expression patterns.\n\n## Installation\n\nTo use _regexpu-core_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\nnpm install regexpu-core --save\n```\n\nThen, `require` it:\n\n```js\nconst rewritePattern = require('regexpu-core');\n```\n\n## API\n\nThis module exports a single function named `rewritePattern`.\n\n### `rewritePattern(pattern, flags, options)`\n\nThis function takes a string that represents a regular expression pattern as well as a string representing its flags, and returns an ES5-compatible version of the pattern.\n\n```js\nrewritePattern('foo.bar', 'u');\n// → 'foo(?:[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uD7FF\\\\uDC00-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF])bar'\n\nrewritePattern('[\\\\u{1D306}-\\\\u{1D308}a-z]', 'u');\n// → '(?:[a-z]|\\\\uD834[\\\\uDF06-\\\\uDF08])'\n\nrewritePattern('[\\\\u{1D306}-\\\\u{1D308}a-z]', 'ui');\n// → '(?:[a-z\\\\u017F\\\\u212A]|\\\\uD834[\\\\uDF06-\\\\uDF08])'\n```\n\n_regexpu-core_ can rewrite non-ES6 regular expressions too, which is useful to demonstrate how their behavior changes once the `u` and `i` flags are added:\n\n```js\n// In ES5, the dot operator only matches BMP symbols:\nrewritePattern('foo.bar');\n// → 'foo(?:[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uFFFF])bar'\n\n// But with the ES6 `u` flag, it matches astral symbols too:\nrewritePattern('foo.bar', 'u');\n// → 'foo(?:[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uD7FF\\\\uDC00-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF])bar'\n```\n\nThe optional `options` argument recognizes the following properties:\n\n#### `dotAllFlag` (default: `false`)\n\nSetting this option to `true` enables experimental support for [the `s` (`dotAll`) flag](https://github.com/mathiasbynens/es-regexp-dotall-flag).\n\n```js\nrewritePattern('.');\n// → '[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uFFFF]'\n\nrewritePattern('.', '', {\n 'dotAllFlag': true\n});\n// → '[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uFFFF]'\n\nrewritePattern('.', 's', {\n 'dotAllFlag': true\n});\n// → '[\\\\0-\\\\uFFFF]'\n\nrewritePattern('.', 'su', {\n 'dotAllFlag': true\n});\n// → '(?:[\\\\0-\\\\uD7FF\\\\uE000-\\\\uFFFF]|[\\\\uD800-\\\\uDBFF][\\\\uDC00-\\\\uDFFF]|[\\\\uD800-\\\\uDBFF](?![\\\\uDC00-\\\\uDFFF])|(?:[^\\\\uD800-\\\\uDBFF]|^)[\\\\uDC00-\\\\uDFFF])'\n```\n\n#### `unicodePropertyEscape` (default: `false`)\n\nSetting this option to `true` enables [experimental support for Unicode property escapes](property-escapes.md):\n\n```js\nrewritePattern('\\\\p{Script_Extensions=Anatolian_Hieroglyphs}', 'u', {\n 'unicodePropertyEscape': true\n});\n// → '(?:\\\\uD811[\\\\uDC00-\\\\uDE46])'\n```\n\n#### `lookbehind` (default: `false`)\n\nSetting this option to `true` enables experimental support for [lookbehind assertions](https://github.com/tc39/proposal-regexp-lookbehind).\n\n```js\nrewritePattern('(?<=.)a', '', {\n 'lookbehind': true\n});\n// → '(?<=[\\\\0-\\\\t\\\\x0B\\\\f\\\\x0E-\\\\u2027\\\\u202A-\\\\uFFFF])a'\n```\n\n#### `namedGroup` (default: `false`)\n\nSetting this option to `true` enables experimental support for [named capture groups](https://github.com/tc39/proposal-regexp-named-groups).\n\n```js\nrewritePattern('(?<name>.)\\k<name>', '', {\n 'namedGroups': true\n});\n// → '(.)\\1'\n```\n\n#### `onNamedGroup`\n\nThis option is a function that gets called when a named capture group is found. It receives two parameters:\nthe name of the group, and its index.\n\n```js\nrewritePattern('(?<name>.)\\k<name>', '', {\n 'namedGroups': true,\n onNamedGroup(name, index) {\n console.log(name, index);\n // → 'name', 1\n }\n});\n```\n\n#### `useUnicodeFlag` (default: `false`)\n\nSetting this option to `true` enables the use of Unicode code point escapes of the form `\\u{…}`. Note that in regular expressions, such escape sequences only work correctly when the ES6 `u` flag is set. Enabling this setting often results in more compact output, although there are cases (such as `\\p{Lu}`) where it actually _increases_ the output size.\n\n```js\nrewritePattern('\\\\p{Script_Extensions=Anatolian_Hieroglyphs}', 'u', {\n 'unicodePropertyEscape': true,\n 'useUnicodeFlag': true\n});\n// → '[\\\\u{14400}-\\\\u{14646}]'\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_regexpu-core_ is available under the [MIT](https://mths.be/mit) license.\n# duplexify\n\nTurn a writeable and readable stream into a single streams2 duplex stream.\n\nSimilar to [duplexer2](https://github.com/deoxxa/duplexer2) except it supports both streams2 and streams1 as input\nand it allows you to set the readable and writable part asynchronously using `setReadable(stream)` and `setWritable(stream)`\n\n```\nnpm install duplexify\n```\n\n[](http://travis-ci.org/mafintosh/duplexify)\n\n## Usage\n\nUse `duplexify(writable, readable, streamOptions)` (or `duplexify.obj(writable, readable)` to create an object stream)\n\n``` js\nvar duplexify = require('duplexify')\n\n// turn writableStream and readableStream into a single duplex stream\nvar dup = duplexify(writableStream, readableStream)\n\ndup.write('hello world') // will write to writableStream\ndup.on('data', function(data) {\n // will read from readableStream\n})\n```\n\nYou can also set the readable and writable parts asynchronously\n\n``` js\nvar dup = duplexify()\n\ndup.write('hello world') // write will buffer until the writable\n // part has been set\n\n// wait a bit ...\ndup.setReadable(readableStream)\n\n// maybe wait some more?\ndup.setWritable(writableStream)\n```\n\nIf you call `setReadable` or `setWritable` multiple times it will unregister the previous readable/writable stream.\nTo disable the readable or writable part call `setReadable` or `setWritable` with `null`.\n\nIf the readable or writable streams emits an error or close it will destroy both streams and bubble up the event.\nYou can also explicitly destroy the streams by calling `dup.destroy()`. The `destroy` method optionally takes an\nerror object as argument, in which case the error is emitted as part of the `error` event.\n\n``` js\ndup.on('error', function(err) {\n console.log('readable or writable emitted an error - close will follow')\n})\n\ndup.on('close', function() {\n console.log('the duplex stream is destroyed')\n})\n\ndup.destroy() // calls destroy on the readable and writable part (if present)\n```\n\n## HTTP request example\n\nTurn a node core http request into a duplex stream is as easy as\n\n``` js\nvar duplexify = require('duplexify')\nvar http = require('http')\n\nvar request = function(opts) {\n var req = http.request(opts)\n var dup = duplexify(req)\n req.on('response', function(res) {\n dup.setReadable(res)\n })\n return dup\n}\n\nvar req = request({\n method: 'GET',\n host: 'www.google.com',\n port: 80\n})\n\nreq.end()\nreq.pipe(process.stdout)\n```\n\n## License\n\nMIT\n\n## Related\n\n`duplexify` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# accepts\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nHigher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).\nExtracted from [koa](https://www.npmjs.com/package/koa) for general use.\n\nIn addition to negotiator, it allows:\n\n- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`\n as well as `('text/html', 'application/json')`.\n- Allows type shorthands such as `json`.\n- Returns `false` when no types match\n- Treats non-existent headers as `*`\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install accepts\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar accepts = require('accepts')\n```\n\n### accepts(req)\n\nCreate a new `Accepts` object for the given `req`.\n\n#### .charset(charsets)\n\nReturn the first accepted charset. If nothing in `charsets` is accepted,\nthen `false` is returned.\n\n#### .charsets()\n\nReturn the charsets that the request accepts, in the order of the client's\npreference (most preferred first).\n\n#### .encoding(encodings)\n\nReturn the first accepted encoding. If nothing in `encodings` is accepted,\nthen `false` is returned.\n\n#### .encodings()\n\nReturn the encodings that the request accepts, in the order of the client's\npreference (most preferred first).\n\n#### .language(languages)\n\nReturn the first accepted language. If nothing in `languages` is accepted,\nthen `false` is returned.\n\n#### .languages()\n\nReturn the languages that the request accepts, in the order of the client's\npreference (most preferred first).\n\n#### .type(types)\n\nReturn the first accepted type (and it is returned as the same text as what\nappears in the `types` array). If nothing in `types` is accepted, then `false`\nis returned.\n\nThe `types` array can contain full MIME types or file extensions. Any value\nthat is not a full MIME types is passed to `require('mime-types').lookup`.\n\n#### .types()\n\nReturn the types that the request accepts, in the order of the client's\npreference (most preferred first).\n\n## Examples\n\n### Simple type negotiation\n\nThis simple example shows how to use `accepts` to return a different typed\nrespond body based on what the client wants to accept. The server lists it's\npreferences in order and will get back the best match between the client and\nserver.\n\n```js\nvar accepts = require('accepts')\nvar http = require('http')\n\nfunction app (req, res) {\n var accept = accepts(req)\n\n // the order of this list is significant; should be server preferred order\n switch (accept.type(['json', 'html'])) {\n case 'json':\n res.setHeader('Content-Type', 'application/json')\n res.write('{\"hello\":\"world!\"}')\n break\n case 'html':\n res.setHeader('Content-Type', 'text/html')\n res.write('<b>hello, world!</b>')\n break\n default:\n // the fallback is text/plain, so no need to specify it above\n res.setHeader('Content-Type', 'text/plain')\n res.write('hello, world!')\n break\n }\n\n res.end()\n}\n\nhttp.createServer(app).listen(3000)\n```\n\nYou can test this out with the cURL program:\n```sh\ncurl -I -H'Accept: text/html' http://localhost:3000/\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/accepts.svg\n[npm-url]: https://npmjs.org/package/accepts\n[node-version-image]: https://img.shields.io/node/v/accepts.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/accepts/master.svg\n[travis-url]: https://travis-ci.org/jshttp/accepts\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/accepts/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/accepts\n[downloads-image]: https://img.shields.io/npm/dm/accepts.svg\n[downloads-url]: https://npmjs.org/package/accepts\ncipher-base\n===\n\n[](https://travis-ci.org/crypto-browserify/cipher-base)\n\nAbstract base class to inherit from if you want to create streams implementing\nthe same api as node crypto streams.\n\nRequires you to implement 2 methods `_final` and `_update`. `_update` takes a\nbuffer and should return a buffer, `_final` takes no arguments and should return\na buffer.\n\nThe constructor takes one argument and that is a string which if present switches\nit into hash mode, i.e. the object you get from crypto.createHash or\ncrypto.createSign, this switches the name of the final method to be the string\nyou passed instead of `final` and returns `this` from update.\n[![Build Status][ci-img]][ci] [![codecov][codecov-img]][codecov] [![npm][npm-img]][npm]\n\n# CSS Modules: Local by Default\n\nTransformation examples:\n\n```css\n.foo { ... } /* => */ :local(.foo) { ... }\n\n.foo .bar { ... } /* => */ :local(.foo) :local(.bar) { ... }\n\n/* Shorthand global selector */\n\n:global .foo .bar { ... } /* => */ .foo .bar { ... }\n\n.foo :global .bar { ... } /* => */ :local(.foo) .bar { ... }\n\n/* Targeted global selector */\n\n:global(.foo) .bar { ... } /* => */ .foo :local(.bar) { ... }\n\n.foo:global(.bar) { ... } /* => */ :local(.foo).bar { ... }\n\n.foo :global(.bar) .baz { ... } /* => */ :local(.foo) .bar :local(.baz) { ... }\n\n.foo:global(.bar) .baz { ... } /* => */ :local(.foo).bar :local(.baz) { ... }\n```\n\n## Building\n\n```bash\n$ npm install\n$ npm test\n```\n\n - Build: [![Build Status][ci-img]][ci]\n - Lines: [![coveralls][coveralls-img]][coveralls]\n - Statements: [![codecov][codecov-img]][codecov]\n\n## Development\n\n```bash\n$ npm run autotest\n```\n\n## License\n\nMIT\n\n## With thanks\n\n - [Tobias Koppers](https://github.com/sokra)\n - [Glen Maddern](https://github.com/geelen)\n\n---\nMark Dalgleish, 2015.\n\n[ci-img]: https://img.shields.io/travis/css-modules/postcss-modules-local-by-default/master.svg?style=flat-square\n[ci]: https://travis-ci.org/css-modules/postcss-modules-local-by-default\n[npm-img]: https://img.shields.io/npm/v/postcss-modules-local-by-default.svg?style=flat-square\n[npm]: https://www.npmjs.com/package/postcss-modules-local-by-default\n[coveralls-img]: https://img.shields.io/coveralls/css-modules/postcss-modules-local-by-default/master.svg?style=flat-square\n[coveralls]: https://coveralls.io/r/css-modules/postcss-modules-local-by-default?branch=master\n[codecov-img]: https://img.shields.io/codecov/c/github/css-modules/postcss-modules-local-by-default/master.svg?style=flat-square\n[codecov]: https://codecov.io/github/css-modules/postcss-modules-local-by-default?branch=master\n# is-extglob [](https://www.npmjs.com/package/is-extglob) [](https://npmjs.org/package/is-extglob) [](https://travis-ci.org/jonschlinkert/is-extglob)\n\n> Returns true if a string has an extglob.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-extglob\n```\n\n## Usage\n\n```js\nvar isExtglob = require('is-extglob');\n```\n\n**True**\n\n```js\nisExtglob('?(abc)');\nisExtglob('@(abc)');\nisExtglob('!(abc)');\nisExtglob('*(abc)');\nisExtglob('+(abc)');\n```\n\n**False**\n\nEscaped extglobs:\n\n```js\nisExtglob('\\\\?(abc)');\nisExtglob('\\\\@(abc)');\nisExtglob('\\\\!(abc)');\nisExtglob('\\\\*(abc)');\nisExtglob('\\\\+(abc)');\n```\n\nEverything else...\n\n```js\nisExtglob('foo.js');\nisExtglob('!foo.js');\nisExtglob('*.js');\nisExtglob('**/abc.js');\nisExtglob('abc/*.js');\nisExtglob('abc/(aaa|bbb).js');\nisExtglob('abc/[a-z].js');\nisExtglob('abc/{a,b}.js');\nisExtglob('abc/?.js');\nisExtglob('abc.js');\nisExtglob('abc/def/ghi.js');\n```\n\n## History\n\n**v2.0**\n\nAdds support for escaping. Escaped exglobs no longer return true.\n\n## About\n\n### Related projects\n\n* [has-glob](https://www.npmjs.com/package/has-glob): Returns `true` if an array has a glob pattern. | [homepage](https://github.com/jonschlinkert/has-glob \"Returns `true` if an array has a glob pattern.\")\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/is-extglob/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._\n# osenv\n\nLook up environment settings specific to different operating systems.\n\n## Usage\n\n```javascript\nvar osenv = require('osenv')\nvar path = osenv.path()\nvar user = osenv.user()\n// etc.\n\n// Some things are not reliably in the env, and have a fallback command:\nvar h = osenv.hostname(function (er, hostname) {\n h = hostname\n})\n// This will still cause it to be memoized, so calling osenv.hostname()\n// is now an immediate operation.\n\n// You can always send a cb, which will get called in the nextTick\n// if it's been memoized, or wait for the fallback data if it wasn't\n// found in the environment.\nosenv.hostname(function (er, hostname) {\n if (er) console.error('error looking up hostname')\n else console.log('this machine calls itself %s', hostname)\n})\n```\n\n## osenv.hostname()\n\nThe machine name. Calls `hostname` if not found.\n\n## osenv.user()\n\nThe currently logged-in user. Calls `whoami` if not found.\n\n## osenv.prompt()\n\nEither PS1 on unix, or PROMPT on Windows.\n\n## osenv.tmpdir()\n\nThe place where temporary files should be created.\n\n## osenv.home()\n\nNo place like it.\n\n## osenv.path()\n\nAn array of the places that the operating system will search for\nexecutables.\n\n## osenv.editor() \n\nReturn the executable name of the editor program. This uses the EDITOR\nand VISUAL environment variables, and falls back to `vi` on Unix, or\n`notepad.exe` on Windows.\n\n## osenv.shell()\n\nThe SHELL on Unix, which Windows calls the ComSpec. Defaults to 'bash'\nor 'cmd'.\n# babel\n# crypto-browserify\n\nA port of node's `crypto` module to the browser.\n\n[](https://travis-ci.org/crypto-browserify/crypto-browserify)\n[](https://github.com/feross/standard)\n[](https://saucelabs.com/u/crypto-browserify)\n\nThe goal of this module is to reimplement node's crypto module,\nin pure javascript so that it can run in the browser.\n\nHere is the subset that is currently implemented:\n\n* createHash (sha1, sha224, sha256, sha384, sha512, md5, rmd160)\n* createHmac (sha1, sha224, sha256, sha384, sha512, md5, rmd160)\n* pbkdf2\n* pbkdf2Sync\n* randomBytes\n* pseudoRandomBytes\n* createCipher (aes)\n* createDecipher (aes)\n* createDiffieHellman\n* createSign (rsa, ecdsa)\n* createVerify (rsa, ecdsa)\n* createECDH (secp256k1)\n* publicEncrypt/privateDecrypt (rsa)\n* privateEncrypt/publicDecrypt (rsa)\n\n## todo\n\nthese features from node's `crypto` are still unimplemented.\n\n* createCredentials\n\n## contributions\n\nIf you are interested in writing a feature, please implement as a new module,\nwhich will be incorporated into crypto-browserify as a dependency.\n\nAll deps must be compatible with node's crypto\n(generate example inputs and outputs with node,\nand save base64 strings inside JSON, so that tests can run in the browser.\nsee [sha.js](https://github.com/dominictarr/sha.js)\n\nCrypto is _extra serious_ so please do not hesitate to review the code,\nand post comments if you do.\n\n## License\n\nMIT\n# Acorn\n\nA tiny, fast JavaScript parser written in JavaScript.\n\n## Community\n\nAcorn is open source software released under an\n[MIT license](https://github.com/acornjs/acorn/blob/master/acorn/LICENSE).\n\nYou are welcome to\n[report bugs](https://github.com/acornjs/acorn/issues) or create pull\nrequests on [github](https://github.com/acornjs/acorn). For questions\nand discussion, please use the\n[Tern discussion forum](https://discuss.ternjs.net).\n\n## Installation\n\nThe easiest way to install acorn is from [`npm`](https://www.npmjs.com/):\n\n```sh\nnpm install acorn\n```\n\nAlternately, you can download the source and build acorn yourself:\n\n```sh\ngit clone https://github.com/acornjs/acorn.git\ncd acorn\nnpm install\n```\n\n## Interface\n\n**parse**`(input, options)` is the main interface to the library. The\n`input` parameter is a string, `options` can be undefined or an object\nsetting some of the options listed below. The return value will be an\nabstract syntax tree object as specified by the [ESTree\nspec](https://github.com/estree/estree).\n\n```javascript\nlet acorn = require(\"acorn\");\nconsole.log(acorn.parse(\"1 + 1\"));\n```\n\nWhen encountering a syntax error, the parser will raise a\n`SyntaxError` object with a meaningful message. The error object will\nhave a `pos` property that indicates the string offset at which the\nerror occurred, and a `loc` object that contains a `{line, column}`\nobject referring to that same position.\n\nOptions can be provided by passing a second argument, which should be\nan object containing any of these fields:\n\n- **ecmaVersion**: Indicates the ECMAScript version to parse. Must be\n either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial\n support). This influences support for strict mode, the set of\n reserved words, and support for new syntax features. Default is 7.\n\n **NOTE**: Only 'stage 4' (finalized) ECMAScript features are being\n implemented by Acorn. Other proposed new features can be implemented\n through plugins.\n\n- **sourceType**: Indicate the mode the code should be parsed in. Can be\n either `\"script\"` or `\"module\"`. This influences global strict mode\n and parsing of `import` and `export` declarations.\n\n- **onInsertedSemicolon**: If given a callback, that callback will be\n called whenever a missing semicolon is inserted by the parser. The\n callback will be given the character offset of the point where the\n semicolon is inserted as argument, and if `locations` is on, also a\n `{line, column}` object representing this position.\n\n- **onTrailingComma**: Like `onInsertedSemicolon`, but for trailing\n commas.\n\n- **allowReserved**: If `false`, using a reserved word will generate\n an error. Defaults to `true` for `ecmaVersion` 3, `false` for higher\n versions. When given the value `\"never\"`, reserved words and\n keywords can also not be used as property names (as in Internet\n Explorer's old parser).\n\n- **allowReturnOutsideFunction**: By default, a return statement at\n the top level raises an error. Set this to `true` to accept such\n code.\n\n- **allowImportExportEverywhere**: By default, `import` and `export`\n declarations can only appear at a program's top level. Setting this\n option to `true` allows them anywhere where a statement is allowed.\n \n- **allowAwaitOutsideFunction**: By default, `await` expressions can\n only appear inside `async` functions. Setting this option to\n `true` allows to have top-level `await` expressions. They are\n still not allowed in non-`async` functions, though.\n\n- **allowHashBang**: When this is enabled (off by default), if the\n code starts with the characters `#!` (as in a shellscript), the\n first line will be treated as a comment.\n\n- **locations**: When `true`, each node has a `loc` object attached\n with `start` and `end` subobjects, each of which contains the\n one-based line and zero-based column numbers in `{line, column}`\n form. Default is `false`.\n\n- **onToken**: If a function is passed for this option, each found\n token will be passed in same format as tokens returned from\n `tokenizer().getToken()`.\n\n If array is passed, each found token is pushed to it.\n\n Note that you are not allowed to call the parser from the\n callback—that will corrupt its internal state.\n\n- **onComment**: If a function is passed for this option, whenever a\n comment is encountered the function will be called with the\n following parameters:\n\n - `block`: `true` if the comment is a block comment, false if it\n is a line comment.\n - `text`: The content of the comment.\n - `start`: Character offset of the start of the comment.\n - `end`: Character offset of the end of the comment.\n\n When the `locations` options is on, the `{line, column}` locations\n of the comment’s start and end are passed as two additional\n parameters.\n\n If array is passed for this option, each found comment is pushed\n to it as object in Esprima format:\n\n ```javascript\n {\n \"type\": \"Line\" | \"Block\",\n \"value\": \"comment text\",\n \"start\": Number,\n \"end\": Number,\n // If `locations` option is on:\n \"loc\": {\n \"start\": {line: Number, column: Number}\n \"end\": {line: Number, column: Number}\n },\n // If `ranges` option is on:\n \"range\": [Number, Number]\n }\n ```\n\n Note that you are not allowed to call the parser from the\n callback—that will corrupt its internal state.\n\n- **ranges**: Nodes have their start and end characters offsets\n recorded in `start` and `end` properties (directly on the node,\n rather than the `loc` object, which holds line/column data. To also\n add a\n [semi-standardized](https://bugzilla.mozilla.org/show_bug.cgi?id=745678)\n `range` property holding a `[start, end]` array with the same\n numbers, set the `ranges` option to `true`.\n\n- **program**: It is possible to parse multiple files into a single\n AST by passing the tree produced by parsing the first file as the\n `program` option in subsequent parses. This will add the toplevel\n forms of the parsed file to the \"Program\" (top) node of an existing\n parse tree.\n\n- **sourceFile**: When the `locations` option is `true`, you can pass\n this option to add a `source` attribute in every node’s `loc`\n object. Note that the contents of this option are not examined or\n processed in any way; you are free to use whatever format you\n choose.\n\n- **directSourceFile**: Like `sourceFile`, but a `sourceFile` property\n will be added (regardless of the `location` option) directly to the\n nodes, rather than the `loc` object.\n\n- **preserveParens**: If this option is `true`, parenthesized expressions\n are represented by (non-standard) `ParenthesizedExpression` nodes\n that have a single `expression` property containing the expression\n inside parentheses.\n\n**parseExpressionAt**`(input, offset, options)` will parse a single\nexpression in a string, and return its AST. It will not complain if\nthere is more of the string left after the expression.\n\n**tokenizer**`(input, options)` returns an object with a `getToken`\nmethod that can be called repeatedly to get the next token, a `{start,\nend, type, value}` object (with added `loc` property when the\n`locations` option is enabled and `range` property when the `ranges`\noption is enabled). When the token's type is `tokTypes.eof`, you\nshould stop calling the method, since it will keep returning that same\ntoken forever.\n\nIn ES6 environment, returned result can be used as any other\nprotocol-compliant iterable:\n\n```javascript\nfor (let token of acorn.tokenizer(str)) {\n // iterate over the tokens\n}\n\n// transform code to array of tokens:\nvar tokens = [...acorn.tokenizer(str)];\n```\n\n**tokTypes** holds an object mapping names to the token type objects\nthat end up in the `type` properties of tokens.\n\n**getLineInfo**`(input, offset)` can be used to get a `{line,\ncolumn}` object for a given program string and offset.\n\n### The `Parser` class\n\nInstances of the **`Parser`** class contain all the state and logic\nthat drives a parse. It has static methods `parse`,\n`parseExpressionAt`, and `tokenizer` that match the top-level\nfunctions by the same name.\n\nWhen extending the parser with plugins, you need to call these methods\non the extended version of the class. To extend a parser with plugins,\nyou can use its static `extend` method.\n\n```javascript\nvar acorn = require(\"acorn\");\nvar jsx = require(\"acorn-jsx\");\nvar JSXParser = acorn.Parser.extend(jsx());\nJSXParser.parse(\"foo(<bar/>)\");\n```\n\nThe `extend` method takes any number of plugin values, and returns a\nnew `Parser` class that includes the extra parser logic provided by\nthe plugins.\n\n## Command line interface\n\nThe `bin/acorn` utility can be used to parse a file from the command\nline. It accepts as arguments its input file and the following\noptions:\n\n- `--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|--ecma10`: Sets the ECMAScript version\n to parse. Default is version 9.\n\n- `--module`: Sets the parsing mode to `\"module\"`. Is set to `\"script\"` otherwise.\n\n- `--locations`: Attaches a \"loc\" object to each node with \"start\" and\n \"end\" subobjects, each of which contains the one-based line and\n zero-based column numbers in `{line, column}` form.\n\n- `--allow-hash-bang`: If the code starts with the characters #! (as\n in a shellscript), the first line will be treated as a comment.\n\n- `--compact`: No whitespace is used in the AST output.\n\n- `--silent`: Do not output the AST, just return the exit status.\n\n- `--help`: Print the usage information and quit.\n\nThe utility spits out the syntax tree as JSON data.\n\n## Existing plugins\n\n - [`acorn-jsx`](https://github.com/RReverser/acorn-jsx): Parse [Facebook JSX syntax extensions](https://github.com/facebook/jsx)\n \nPlugins for ECMAScript proposals:\n \n - [`acorn-stage3`](https://github.com/acornjs/acorn-stage3): Parse most stage 3 proposals, bundling:\n - [`acorn-async-iteration`](https://github.com/acornjs/acorn-async-iteration): Parse [async iteration proposal](https://github.com/tc39/proposal-async-iteration)\n - [`acorn-bigint`](https://github.com/acornjs/acorn-bigint): Parse [BigInt proposal](https://github.com/tc39/proposal-bigint)\n - [`acorn-class-fields`](https://github.com/acornjs/acorn-class-fields): Parse [class fields proposal](https://github.com/tc39/proposal-class-fields)\n - [`acorn-dynamic-import`](https://github.com/kesne/acorn-dynamic-import): Parse [import() proposal](https://github.com/tc39/proposal-dynamic-import)\n - [`acorn-import-meta`](https://github.com/acornjs/acorn-import-meta): Parse [import.meta proposal](https://github.com/tc39/proposal-import-meta)\n - [`acorn-numeric-separator`](https://github.com/acornjs/acorn-numeric-separator): Parse [numeric separator proposal](https://github.com/tc39/proposal-numeric-separator)\n - [`acorn-private-methods`](https://github.com/acornjs/acorn-private-methods): parse [private methods, getters and setters proposal](https://github.com/tc39/proposal-private-methods)n\n# http-errors\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nCreate HTTP errors for Express, Koa, Connect, etc. with ease.\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```bash\n$ npm install http-errors\n```\n\n## Example\n\n```js\nvar createError = require('http-errors')\nvar express = require('express')\nvar app = express()\n\napp.use(function (req, res, next) {\n if (!req.user) return next(createError(401, 'Please login to view this page.'))\n next()\n})\n```\n\n## API\n\nThis is the current API, currently extracted from Koa and subject to change.\n\nAll errors inherit from JavaScript `Error` and the exported `createError.HttpError`.\n\n### Error Properties\n\n- `expose` - can be used to signal if `message` should be sent to the client,\n defaulting to `false` when `status` >= 500\n- `headers` - can be an object of header names to values to be sent to the\n client, defaulting to `undefined`. When defined, the key names should all\n be lower-cased\n- `message` - the traditional error message, which should be kept short and all\n single line\n- `status` - the status code of the error, mirroring `statusCode` for general\n compatibility\n- `statusCode` - the status code of the error, defaulting to `500`\n\n### createError([status], [message], [properties])\n\n<!-- eslint-disable no-undef, no-unused-vars -->\n\n```js\nvar err = createError(404, 'This video does not exist!')\n```\n\n- `status: 500` - the status code as a number\n- `message` - the message of the error, defaulting to node's text for that status code.\n- `properties` - custom properties to attach to the object\n\n### new createError\\[code || name\\](\\[msg]\\))\n\n<!-- eslint-disable no-undef, no-unused-vars -->\n\n```js\nvar err = new createError.NotFound()\n```\n\n- `code` - the status code as a number\n- `name` - the name of the error as a \"bumpy case\", i.e. `NotFound` or `InternalServerError`.\n\n#### List of all constructors\n\n|Status Code|Constructor Name |\n|-----------|-----------------------------|\n|400 |BadRequest |\n|401 |Unauthorized |\n|402 |PaymentRequired |\n|403 |Forbidden |\n|404 |NotFound |\n|405 |MethodNotAllowed |\n|406 |NotAcceptable |\n|407 |ProxyAuthenticationRequired |\n|408 |RequestTimeout |\n|409 |Conflict |\n|410 |Gone |\n|411 |LengthRequired |\n|412 |PreconditionFailed |\n|413 |PayloadTooLarge |\n|414 |URITooLong |\n|415 |UnsupportedMediaType |\n|416 |RangeNotSatisfiable |\n|417 |ExpectationFailed |\n|418 |ImATeapot |\n|421 |MisdirectedRequest |\n|422 |UnprocessableEntity |\n|423 |Locked |\n|424 |FailedDependency |\n|425 |UnorderedCollection |\n|426 |UpgradeRequired |\n|428 |PreconditionRequired |\n|429 |TooManyRequests |\n|431 |RequestHeaderFieldsTooLarge |\n|451 |UnavailableForLegalReasons |\n|500 |InternalServerError |\n|501 |NotImplemented |\n|502 |BadGateway |\n|503 |ServiceUnavailable |\n|504 |GatewayTimeout |\n|505 |HTTPVersionNotSupported |\n|506 |VariantAlsoNegotiates |\n|507 |InsufficientStorage |\n|508 |LoopDetected |\n|509 |BandwidthLimitExceeded |\n|510 |NotExtended |\n|511 |NetworkAuthenticationRequired|\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/http-errors.svg\n[npm-url]: https://npmjs.org/package/http-errors\n[node-version-image]: https://img.shields.io/node/v/http-errors.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/http-errors.svg\n[travis-url]: https://travis-ci.org/jshttp/http-errors\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/http-errors.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/http-errors\n[downloads-image]: https://img.shields.io/npm/dm/http-errors.svg\n[downloads-url]: https://npmjs.org/package/http-errors\n# default-gateway\n[](https://www.npmjs.org/package/default-gateway) [](https://www.npmjs.org/package/default-gateway) [](https://travis-ci.org/silverwind/default-gateway)\n\n> Get the default network gateway, cross-platform.\n\nObtains the machine's default gateway through `exec` calls to OS routing interfaces. On Linux and Android, the `ip` command must be available (usually provided by the `iproute2` package). On IBM i, the `db2util` command must be available (provided by the `db2util` package).\n\n## Installation\n\n```\n$ npm install default-gateway\n```\n\n## Example\n\n```js\nconst defaultGateway = require('default-gateway');\n\ndefaultGateway.v4().then(result => {\n // result = {gateway: '1.2.3.4', interface: 'en1'}\n});\n\ndefaultGateway.v6().then(result => {\n // result = {gateway: '2001:db8::1', interface: 'en2'}\n});\n\nconst result = defaultGateway.v4.sync();\n// result = {gateway: '1.2.3.4', interface: 'en1'}\n\nconst result = defaultGateway.v6.sync();\n// result = {gateway: '2001:db8::1', interface: 'en2'}\n```\n\n## API\n### defaultGateway.v4()\n### defaultGateway.v6()\n### defaultGateway.v4.sync()\n### defaultGateway.v6.sync()\n\nReturns: `result` *Object*\n - `gateway`: The IP address of the default gateway.\n - `interface`: The name of the interface. On Windows, this is the network adapter name.\n\nThe `.v{4,6}()` methods return a Promise while the `.v{4,6}.sync()` variants will return the result synchronously.\n\nThe `gateway` property will always be defined on success, while `interface` can be `null` if it cannot be determined. All methods reject/throw on unexpected conditions.\n\n## License\n\n© [silverwind](https://github.com/silverwind), distributed under BSD licence\n# Methods\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nHTTP verbs that Node.js core's HTTP parser supports.\n\nThis module provides an export that is just like `http.METHODS` from Node.js core,\nwith the following differences:\n\n * All method names are lower-cased.\n * Contains a fallback list of methods for Node.js versions that do not have a\n `http.METHODS` export (0.10 and lower).\n * Provides the fallback list when using tools like `browserify` without pulling\n in the `http` shim module.\n\n## Install\n\n```bash\n$ npm install methods\n```\n\n## API\n\n```js\nvar methods = require('methods')\n```\n\n### methods\n\nThis is an array of lower-cased method names that Node.js supports. If Node.js\nprovides the `http.METHODS` export, then this is the same array lower-cased,\notherwise it is a snapshot of the verbs from Node.js 0.10.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/methods.svg?style=flat\n[npm-url]: https://npmjs.org/package/methods\n[node-version-image]: https://img.shields.io/node/v/methods.svg?style=flat\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/methods.svg?style=flat\n[travis-url]: https://travis-ci.org/jshttp/methods\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/methods.svg?style=flat\n[coveralls-url]: https://coveralls.io/r/jshttp/methods?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/methods.svg?style=flat\n[downloads-url]: https://npmjs.org/package/methods\n# stream-shift\n\nReturns the next buffer/object in a stream's readable queue\n\n```\nnpm install stream-shift\n```\n\n[](http://travis-ci.org/mafintosh/stream-shift)\n\n## Usage\n\n``` js\nvar shift = require('stream-shift')\n\nconsole.log(shift(someStream)) // first item in its buffer\n```\n\n## Credit\n\nThanks [@dignifiedquire](https://github.com/dignifiedquire) for making this work on node 6\n\n## License\n\nMIT\n# RegJSParser\n\nParsing the JavaScript's RegExp in JavaScript.\n\n## Installation\n\n```bash\nnpm install regjsparser\n```\n\n## Usage\n\n```js\nvar parse = require('regjsparser').parse;\n\nvar parseTree = parse('^a'); // /^a/\nconsole.log(parseTree);\n\n// Toggle on/off additional features:\nvar parseTree = parse('^a', '', {\n // SEE: https://github.com/jviereck/regjsparser/pull/78\n unicodePropertyEscape: true,\n\n // SEE: https://github.com/jviereck/regjsparser/pull/83\n namedGroups: true,\n\n // SEE: https://github.com/jviereck/regjsparser/pull/89\n lookbehind: true\n});\nconsole.log(parseTree);\n```\n\n## Testing\n\nTo run the tests, run the following command:\n\n```bash\nnpm test\n```\n\nTo create a new reference file, execute…\n\n```bash\nnode test/update-fixtures.js\n```\n\n…from the repo top directory.\n<a href=\"http://promisesaplus.com/\">\n <img src=\"http://promisesaplus.com/assets/logo-small.png\" alt=\"Promises/A+ logo\"\n title=\"Promises/A+ 1.1 compliant\" align=\"right\" />\n</a>\n\n[](https://travis-ci.org/petkaantonov/bluebird)\n[](http://petkaantonov.github.io/bluebird/coverage/debug/index.html)\n\n**Got a question?** Join us on [stackoverflow](http://stackoverflow.com/questions/tagged/bluebird), the [mailing list](https://groups.google.com/forum/#!forum/bluebird-js) or chat on [IRC](https://webchat.freenode.net/?channels=#promises)\n\n# Introduction\n\nBluebird is a fully featured promise library with focus on innovative features and performance\n\nSee the [**bluebird website**](http://bluebirdjs.com/docs/getting-started.html) for further documentation, references and instructions. See the [**API reference**](http://bluebirdjs.com/docs/api-reference.html) here.\n\nFor bluebird 2.x documentation and files, see the [2.x tree](https://github.com/petkaantonov/bluebird/tree/2.x).\n\n### Note \n\nPromises in Node.js 10 are significantly faster than before. Bluebird still includes a lot of features like cancellation, iteration methods and warnings that native promises don't. If you are using Bluebird for performance rather than for those - please consider giving native promises a shot and running the benchmarks yourself.\n\n# Questions and issues\n\nThe [github issue tracker](https://github.com/petkaantonov/bluebird/issues) is **_only_** for bug reports and feature requests. Anything else, such as questions for help in using the library, should be posted in [StackOverflow](http://stackoverflow.com/questions/tagged/bluebird) under tags `promise` and `bluebird`.\n\n## Thanks\n\nThanks to BrowserStack for providing us with a free account which lets us support old browsers like IE8. \n\n# License\n\nThe MIT License (MIT)\n\nCopyright (c) 2013-2017 Petka Antonov\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\nJSON Schema is a repository for the JSON Schema specification, reference schemas and a CommonJS implementation of JSON Schema (not the only JavaScript implementation of JSON Schema, JSV is another excellent JavaScript validator).\n\nCode is licensed under the AFL or BSD license as part of the Persevere \nproject which is administered under the Dojo foundation,\nand all contributions require a Dojo CLA.\n# querystringify\n\n[](http://unshift.io)[](http://browsenpm.org/package/querystringify)[](https://travis-ci.org/unshiftio/querystringify)[](https://david-dm.org/unshiftio/querystringify)[](https://coveralls.io/r/unshiftio/querystringify?branch=master)[](http://webchat.freenode.net/?channels=unshift)\n\nA somewhat JSON compatible interface for query string parsing. This query string\nparser is dumb, don't expect to much from it as it only wants to parse simple\nquery strings. If you want to parse complex, multi level and deeply nested\nquery strings then you should ask your self. WTF am I doing?\n\n## Installation\n\nThis module is released in npm as `querystringify`. It's also compatible with\n`browserify` so it can be used on the server as well as on the client. To\ninstall it simply run the following command from your CLI:\n\n```\nnpm install --save querystringify\n```\n\n## Usage\n\nIn the following examples we assume that you've already required the library as:\n\n```js\n'use strict';\n\nvar qs = require('querystringify');\n```\n\n### qs.parse()\n\nThe parse method transforms a given query string in to an object. Parameters\nwithout values are set to empty strings. It does not care if your query string\nis prefixed with a `?` or not. It just extracts the parts between the `=` and\n`&`:\n\n```js\nqs.parse('?foo=bar'); // { foo: 'bar' }\nqs.parse('foo=bar'); // { foo: 'bar' }\nqs.parse('foo=bar&bar=foo'); // { foo: 'bar', bar: 'foo' }\nqs.parse('foo&bar=foo'); // { foo: '', bar: 'foo' }\n```\n\n### qs.stringify()\n\nThis transforms a given object in to a query string. By default we return the\nquery string without a `?` prefix. If you want to prefix it by default simply\nsupply `true` as second argument. If it should be prefixed by something else\nsimply supply a string with the prefix value as second argument:\n\n```js\nqs.stringify({ foo: bar }); // foo=bar\nqs.stringify({ foo: bar }, true); // ?foo=bar\nqs.stringify({ foo: bar }, '&'); // &foo=bar\nqs.stringify({ foo: '' }, '&'); // &foo=\n```\n\n## License\n\nMIT\n# on-finished\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nExecute a callback when a HTTP request closes, finishes, or errors.\n\n## Install\n\n```sh\n$ npm install on-finished\n```\n\n## API\n\n```js\nvar onFinished = require('on-finished')\n```\n\n### onFinished(res, listener)\n\nAttach a listener to listen for the response to finish. The listener will\nbe invoked only once when the response finished. If the response finished\nto an error, the first argument will contain the error. If the response\nhas already finished, the listener will be invoked.\n\nListening to the end of a response would be used to close things associated\nwith the response, like open files.\n\nListener is invoked as `listener(err, res)`.\n\n```js\nonFinished(res, function (err, res) {\n // clean up open fds, etc.\n // err contains the error is request error'd\n})\n```\n\n### onFinished(req, listener)\n\nAttach a listener to listen for the request to finish. The listener will\nbe invoked only once when the request finished. If the request finished\nto an error, the first argument will contain the error. If the request\nhas already finished, the listener will be invoked.\n\nListening to the end of a request would be used to know when to continue\nafter reading the data.\n\nListener is invoked as `listener(err, req)`.\n\n```js\nvar data = ''\n\nreq.setEncoding('utf8')\nres.on('data', function (str) {\n data += str\n})\n\nonFinished(req, function (err, req) {\n // data is read unless there is err\n})\n```\n\n### onFinished.isFinished(res)\n\nDetermine if `res` is already finished. This would be useful to check and\nnot even start certain operations if the response has already finished.\n\n### onFinished.isFinished(req)\n\nDetermine if `req` is already finished. This would be useful to check and\nnot even start certain operations if the request has already finished.\n\n## Special Node.js requests\n\n### HTTP CONNECT method\n\nThe meaning of the `CONNECT` method from RFC 7231, section 4.3.6:\n\n> The CONNECT method requests that the recipient establish a tunnel to\n> the destination origin server identified by the request-target and,\n> if successful, thereafter restrict its behavior to blind forwarding\n> of packets, in both directions, until the tunnel is closed. Tunnels\n> are commonly used to create an end-to-end virtual connection, through\n> one or more proxies, which can then be secured using TLS (Transport\n> Layer Security, [RFC5246]).\n\nIn Node.js, these request objects come from the `'connect'` event on\nthe HTTP server.\n\nWhen this module is used on a HTTP `CONNECT` request, the request is\nconsidered \"finished\" immediately, **due to limitations in the Node.js\ninterface**. This means if the `CONNECT` request contains a request entity,\nthe request will be considered \"finished\" even before it has been read.\n\nThere is no such thing as a response object to a `CONNECT` request in\nNode.js, so there is no support for for one.\n\n### HTTP Upgrade request\n\nThe meaning of the `Upgrade` header from RFC 7230, section 6.1:\n\n> The \"Upgrade\" header field is intended to provide a simple mechanism\n> for transitioning from HTTP/1.1 to some other protocol on the same\n> connection.\n\nIn Node.js, these request objects come from the `'upgrade'` event on\nthe HTTP server.\n\nWhen this module is used on a HTTP request with an `Upgrade` header, the\nrequest is considered \"finished\" immediately, **due to limitations in the\nNode.js interface**. This means if the `Upgrade` request contains a request\nentity, the request will be considered \"finished\" even before it has been\nread.\n\nThere is no such thing as a response object to a `Upgrade` request in\nNode.js, so there is no support for for one.\n\n## Example\n\nThe following code ensures that file descriptors are always closed\nonce the response finishes.\n\n```js\nvar destroy = require('destroy')\nvar http = require('http')\nvar onFinished = require('on-finished')\n\nhttp.createServer(function onRequest(req, res) {\n var stream = fs.createReadStream('package.json')\n stream.pipe(res)\n onFinished(res, function (err) {\n destroy(stream)\n })\n})\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/on-finished.svg\n[npm-url]: https://npmjs.org/package/on-finished\n[node-version-image]: https://img.shields.io/node/v/on-finished.svg\n[node-version-url]: http://nodejs.org/download/\n[travis-image]: https://img.shields.io/travis/jshttp/on-finished/master.svg\n[travis-url]: https://travis-ci.org/jshttp/on-finished\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/on-finished/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/on-finished?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/on-finished.svg\n[downloads-url]: https://npmjs.org/package/on-finished\n# raw-body\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n\nGets the entire buffer of a stream either as a `Buffer` or a string.\nValidates the stream's length against an expected length and maximum limit.\nIdeal for parsing request bodies.\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install raw-body\n```\n\n### TypeScript\n\nThis module includes a [TypeScript](https://www.typescriptlang.org/)\ndeclaration file to enable auto complete in compatible editors and type\ninformation for TypeScript projects. This module depends on the Node.js\ntypes, so install `@types/node`:\n\n```sh\n$ npm install @types/node\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar getRawBody = require('raw-body')\n```\n\n### getRawBody(stream, [options], [callback])\n\n**Returns a promise if no callback specified and global `Promise` exists.**\n\nOptions:\n\n- `length` - The length of the stream.\n If the contents of the stream do not add up to this length,\n an `400` error code is returned.\n- `limit` - The byte limit of the body.\n This is the number of bytes or any string format supported by\n [bytes](https://www.npmjs.com/package/bytes),\n for example `1000`, `'500kb'` or `'3mb'`.\n If the body ends up being larger than this limit,\n a `413` error code is returned.\n- `encoding` - The encoding to use to decode the body into a string.\n By default, a `Buffer` instance will be returned when no encoding is specified.\n Most likely, you want `utf-8`, so setting `encoding` to `true` will decode as `utf-8`.\n You can use any type of encoding supported by [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme).\n\nYou can also pass a string in place of options to just specify the encoding.\n\nIf an error occurs, the stream will be paused, everything unpiped,\nand you are responsible for correctly disposing the stream.\nFor HTTP requests, no handling is required if you send a response.\nFor streams that use file descriptors, you should `stream.destroy()` or `stream.close()` to prevent leaks.\n\n## Errors\n\nThis module creates errors depending on the error condition during reading.\nThe error may be an error from the underlying Node.js implementation, but is\notherwise an error created by this module, which has the following attributes:\n\n * `limit` - the limit in bytes\n * `length` and `expected` - the expected length of the stream\n * `received` - the received bytes\n * `encoding` - the invalid encoding\n * `status` and `statusCode` - the corresponding status code for the error\n * `type` - the error type\n\n### Types\n\nThe errors from this module have a `type` property which allows for the progamatic\ndetermination of the type of error returned.\n\n#### encoding.unsupported\n\nThis error will occur when the `encoding` option is specified, but the value does\nnot map to an encoding supported by the [iconv-lite](https://www.npmjs.org/package/iconv-lite#readme)\nmodule.\n\n#### entity.too.large\n\nThis error will occur when the `limit` option is specified, but the stream has\nan entity that is larger.\n\n#### request.aborted\n\nThis error will occur when the request stream is aborted by the client before\nreading the body has finished.\n\n#### request.size.invalid\n\nThis error will occur when the `length` option is specified, but the stream has\nemitted more bytes.\n\n#### stream.encoding.set\n\nThis error will occur when the given stream has an encoding set on it, making it\na decoded stream. The stream should not have an encoding set and is expected to\nemit `Buffer` objects.\n\n## Examples\n\n### Simple Express example\n\n```js\nvar contentType = require('content-type')\nvar express = require('express')\nvar getRawBody = require('raw-body')\n\nvar app = express()\n\napp.use(function (req, res, next) {\n getRawBody(req, {\n length: req.headers['content-length'],\n limit: '1mb',\n encoding: contentType.parse(req).parameters.charset\n }, function (err, string) {\n if (err) return next(err)\n req.text = string\n next()\n })\n})\n\n// now access req.text\n```\n\n### Simple Koa example\n\n```js\nvar contentType = require('content-type')\nvar getRawBody = require('raw-body')\nvar koa = require('koa')\n\nvar app = koa()\n\napp.use(function * (next) {\n this.text = yield getRawBody(this.req, {\n length: this.req.headers['content-length'],\n limit: '1mb',\n encoding: contentType.parse(this.req).parameters.charset\n })\n yield next\n})\n\n// now access this.text\n```\n\n### Using as a promise\n\nTo use this library as a promise, simply omit the `callback` and a promise is\nreturned, provided that a global `Promise` is defined.\n\n```js\nvar getRawBody = require('raw-body')\nvar http = require('http')\n\nvar server = http.createServer(function (req, res) {\n getRawBody(req)\n .then(function (buf) {\n res.statusCode = 200\n res.end(buf.length + ' bytes submitted')\n })\n .catch(function (err) {\n res.statusCode = 500\n res.end(err.message)\n })\n})\n\nserver.listen(3000)\n```\n\n### Using with TypeScript\n\n```ts\nimport * as getRawBody from 'raw-body';\nimport * as http from 'http';\n\nconst server = http.createServer((req, res) => {\n getRawBody(req)\n .then((buf) => {\n res.statusCode = 200;\n res.end(buf.length + ' bytes submitted');\n })\n .catch((err) => {\n res.statusCode = err.statusCode;\n res.end(err.message);\n });\n});\n\nserver.listen(3000);\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/raw-body.svg\n[npm-url]: https://npmjs.org/package/raw-body\n[node-version-image]: https://img.shields.io/node/v/raw-body.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/stream-utils/raw-body/master.svg\n[travis-url]: https://travis-ci.org/stream-utils/raw-body\n[coveralls-image]: https://img.shields.io/coveralls/stream-utils/raw-body/master.svg\n[coveralls-url]: https://coveralls.io/r/stream-utils/raw-body?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/raw-body.svg\n[downloads-url]: https://npmjs.org/package/raw-body\n# set-value [](https://www.npmjs.com/package/set-value) [](https://npmjs.org/package/set-value) [](https://npmjs.org/package/set-value) [](https://travis-ci.org/jonschlinkert/set-value)\n\n> Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save set-value\n```\n\n## Usage\n\n```js\nvar set = require('set-value');\nset(object, prop, value);\n```\n\n### Params\n\n* `object` **{object}**: The object to set `value` on\n* `prop` **{string}**: The property to set. Dot-notation may be used.\n* `value` **{any}**: The value to set on `object[prop]`\n\n## Examples\n\nUpdates and returns the given object:\n\n```js\nvar obj = {};\nset(obj, 'a.b.c', 'd');\nconsole.log(obj);\n//=> { a: { b: { c: 'd' } } }\n```\n\n### Escaping\n\n**Escaping with backslashes**\n\nPrevent set-value from splitting on a dot by prefixing it with backslashes:\n\n```js\nconsole.log(set({}, 'a\\\\.b.c', 'd'));\n//=> { 'a.b': { c: 'd' } }\n\nconsole.log(set({}, 'a\\\\.b\\\\.c', 'd'));\n//=> { 'a.b.c': 'd' }\n```\n\n**Escaping with double-quotes or single-quotes**\n\nWrap double or single quotes around the string, or part of the string, that should not be split by set-value:\n\n```js\nconsole.log(set({}, '\"a.b\".c', 'd'));\n//=> { 'a.b': { c: 'd' } }\n\nconsole.log(set({}, \"'a.b'.c\", \"d\"));\n//=> { 'a.b': { c: 'd' } }\n\nconsole.log(set({}, '\"this/is/a/.file.path\"', 'd'));\n//=> { 'this/is/a/file.path': 'd' }\n```\n\n### Bracket support\n\nset-value does not split inside brackets or braces:\n\n```js\nconsole.log(set({}, '[a.b].c', 'd'));\n//=> { '[a.b]': { c: 'd' } }\n\nconsole.log(set({}, \"(a.b).c\", \"d\"));\n//=> { '(a.b)': { c: 'd' } }\n\nconsole.log(set({}, \"<a.b>.c\", \"d\"));\n//=> { '<a.b>': { c: 'd' } }\n\nconsole.log(set({}, \"{a..b}.c\", \"d\"));\n//=> { '{a..b}': { c: 'd' } }\n```\n\n## History\n\n### v2.0.0\n\n* Adds support for escaping with double or single quotes. See [escaping](#escaping) for examples.\n* Will no longer split inside brackets or braces. See [bracket support](#bracket-support) for examples.\n\nIf there are any regressions please create a [bug report](../../issues/new). Thanks!\n\n## About\n\n### Related projects\n\n* [assign-value](https://www.npmjs.com/package/assign-value): Assign a value or extend a deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/assign-value) | [homepage](https://github.com/jonschlinkert/assign-value \"Assign a value or extend a deeply nested property of an object using object path notation.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value \"Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\")\n* [merge-value](https://www.npmjs.com/package/merge-value): Similar to assign-value but deeply merges object values or nested values using object path/dot notation. | [homepage](https://github.com/jonschlinkert/merge-value \"Similar to assign-value but deeply merges object values or nested values using object path/dot notation.\")\n* [omit-value](https://www.npmjs.com/package/omit-value): Omit properties from an object or deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/omit-value) | [homepage](https://github.com/jonschlinkert/omit-value \"Omit properties from an object or deeply nested property of an object using object path notation.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [union-value](https://www.npmjs.com/package/union-value): Set an array of unique values as the property of an object. Supports setting deeply… [more](https://github.com/jonschlinkert/union-value) | [homepage](https://github.com/jonschlinkert/union-value \"Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.\")\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value \"Delete nested properties from an object using dot notation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [vadimdemedes](https://github.com/vadimdemedes) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 21, 2017._\nNative Abstractions for Node.js\n===============================\n\n**A header file filled with macro and utility goodness for making add-on development for Node.js easier across versions 0.8, 0.10, 0.12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11.**\n\n***Current version: 2.13.2***\n\n*(See [CHANGELOG.md](https://github.com/nodejs/nan/blob/master/CHANGELOG.md) for complete ChangeLog)*\n\n[](https://nodei.co/npm/nan/) [](https://nodei.co/npm/nan/)\n\n[](https://travis-ci.org/nodejs/nan)\n[](https://ci.appveyor.com/project/RodVagg/nan)\n\nThanks to the crazy changes in V8 (and some in Node core), keeping native addons compiling happily across versions, particularly 0.10 to 0.12 to 4.0, is a minor nightmare. The goal of this project is to store all logic necessary to develop native Node.js addons without having to inspect `NODE_MODULE_VERSION` and get yourself into a macro-tangle.\n\nThis project also contains some helper utilities that make addon development a bit more pleasant.\n\n * **[News & Updates](#news)**\n * **[Usage](#usage)**\n * **[Example](#example)**\n * **[API](#api)**\n * **[Tests](#tests)**\n * **[Knowns issues](#issues)**\n * **[Governance & Contributing](#governance)**\n\n<a name=\"news\"></a>\n\n## News & Updates\n\n<a name=\"usage\"></a>\n\n## Usage\n\nSimply add **NAN** as a dependency in the *package.json* of your Node addon:\n\n``` bash\n$ npm install --save nan\n```\n\nPull in the path to **NAN** in your *binding.gyp* so that you can use `#include <nan.h>` in your *.cpp* files:\n\n``` python\n\"include_dirs\" : [\n \"<!(node -e \\\"require('nan')\\\")\"\n]\n```\n\nThis works like a `-I<path-to-NAN>` when compiling your addon.\n\n<a name=\"example\"></a>\n\n## Example\n\nJust getting started with Nan? Take a look at the **[Node Add-on Examples](https://github.com/nodejs/node-addon-examples)**.\n\nRefer to a [quick-start **Nan** Boilerplate](https://github.com/fcanas/node-native-boilerplate) for a ready-to-go project that utilizes basic Nan functionality.\n\nFor a simpler example, see the **[async pi estimation example](https://github.com/nodejs/nan/tree/master/examples/async_pi_estimate)** in the examples directory for full code and an explanation of what this Monte Carlo Pi estimation example does. Below are just some parts of the full example that illustrate the use of **NAN**.\n\nYet another example is **[nan-example-eol](https://github.com/CodeCharmLtd/nan-example-eol)**. It shows newline detection implemented as a native addon.\n\nAlso take a look at our comprehensive **[C++ test suite](https://github.com/nodejs/nan/tree/master/test/cpp)** which has a plethora of code snippets for your pasting pleasure.\n\n<a name=\"api\"></a>\n\n## API\n\nAdditional to the NAN documentation below, please consult:\n\n* [The V8 Getting Started * Guide](https://github.com/v8/v8/wiki/Getting%20Started%20with%20Embedding)\n* [The V8 Embedders * Guide](https://github.com/v8/v8/wiki/Embedder%27s%20Guide)\n* [V8 API Documentation](https://v8docs.nodesource.com/)\n* [Node Add-on Documentation](https://nodejs.org/api/addons.html)\n\n<!-- START API -->\n\n### JavaScript-accessible methods\n\nA _template_ is a blueprint for JavaScript functions and objects in a context. You can use a template to wrap C++ functions and data structures within JavaScript objects so that they can be manipulated from JavaScript. See the V8 Embedders Guide section on [Templates](https://github.com/v8/v8/wiki/Embedder%27s-Guide#templates) for further information.\n\nIn order to expose functionality to JavaScript via a template, you must provide it to V8 in a form that it understands. Across the versions of V8 supported by NAN, JavaScript-accessible method signatures vary widely, NAN fully abstracts method declaration and provides you with an interface that is similar to the most recent V8 API but is backward-compatible with older versions that still use the now-deceased `v8::Argument` type.\n\n* **Method argument types**\n - <a href=\"doc/methods.md#api_nan_function_callback_info\"><b><code>Nan::FunctionCallbackInfo</code></b></a>\n - <a href=\"doc/methods.md#api_nan_property_callback_info\"><b><code>Nan::PropertyCallbackInfo</code></b></a>\n - <a href=\"doc/methods.md#api_nan_return_value\"><b><code>Nan::ReturnValue</code></b></a>\n* **Method declarations**\n - <a href=\"doc/methods.md#api_nan_method\"><b>Method declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_getter\"><b>Getter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_setter\"><b>Setter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_property_getter\"><b>Property getter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_property_setter\"><b>Property setter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_property_enumerator\"><b>Property enumerator declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_property_deleter\"><b>Property deleter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_property_query\"><b>Property query declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_index_getter\"><b>Index getter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_index_setter\"><b>Index setter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_index_enumerator\"><b>Index enumerator declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_index_deleter\"><b>Index deleter declaration</b></a>\n - <a href=\"doc/methods.md#api_nan_index_query\"><b>Index query declaration</b></a>\n* Method and template helpers\n - <a href=\"doc/methods.md#api_nan_set_method\"><b><code>Nan::SetMethod()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_prototype_method\"><b><code>Nan::SetPrototypeMethod()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_accessor\"><b><code>Nan::SetAccessor()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_named_property_handler\"><b><code>Nan::SetNamedPropertyHandler()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_indexed_property_handler\"><b><code>Nan::SetIndexedPropertyHandler()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_template\"><b><code>Nan::SetTemplate()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_prototype_template\"><b><code>Nan::SetPrototypeTemplate()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_instance_template\"><b><code>Nan::SetInstanceTemplate()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_call_handler\"><b><code>Nan::SetCallHandler()</code></b></a>\n - <a href=\"doc/methods.md#api_nan_set_call_as_function_handler\"><b><code>Nan::SetCallAsFunctionHandler()</code></b></a>\n\n### Scopes\n\nA _local handle_ is a pointer to an object. All V8 objects are accessed using handles, they are necessary because of the way the V8 garbage collector works.\n\nA handle scope can be thought of as a container for any number of handles. When you've finished with your handles, instead of deleting each one individually you can simply delete their scope.\n\nThe creation of `HandleScope` objects is different across the supported versions of V8. Therefore, NAN provides its own implementations that can be used safely across these.\n\n - <a href=\"doc/scopes.md#api_nan_handle_scope\"><b><code>Nan::HandleScope</code></b></a>\n - <a href=\"doc/scopes.md#api_nan_escapable_handle_scope\"><b><code>Nan::EscapableHandleScope</code></b></a>\n\nAlso see the V8 Embedders Guide section on [Handles and Garbage Collection](https://github.com/v8/v8/wiki/Embedder%27s%20Guide#handles-and-garbage-collection).\n\n### Persistent references\n\nAn object reference that is independent of any `HandleScope` is a _persistent_ reference. Where a `Local` handle only lives as long as the `HandleScope` in which it was allocated, a `Persistent` handle remains valid until it is explicitly disposed.\n\nDue to the evolution of the V8 API, it is necessary for NAN to provide a wrapper implementation of the `Persistent` classes to supply compatibility across the V8 versions supported.\n\n - <a href=\"doc/persistent.md#api_nan_persistent_base\"><b><code>Nan::PersistentBase & v8::PersistentBase</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_non_copyable_persistent_traits\"><b><code>Nan::NonCopyablePersistentTraits & v8::NonCopyablePersistentTraits</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_copyable_persistent_traits\"><b><code>Nan::CopyablePersistentTraits & v8::CopyablePersistentTraits</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_persistent\"><b><code>Nan::Persistent</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_global\"><b><code>Nan::Global</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_weak_callback_info\"><b><code>Nan::WeakCallbackInfo</code></b></a>\n - <a href=\"doc/persistent.md#api_nan_weak_callback_type\"><b><code>Nan::WeakCallbackType</code></b></a>\n\nAlso see the V8 Embedders Guide section on [Handles and Garbage Collection](https://developers.google.com/v8/embed#handles).\n\n### New\n\nNAN provides a `Nan::New()` helper for the creation of new JavaScript objects in a way that's compatible across the supported versions of V8.\n\n - <a href=\"doc/new.md#api_nan_new\"><b><code>Nan::New()</code></b></a>\n - <a href=\"doc/new.md#api_nan_undefined\"><b><code>Nan::Undefined()</code></b></a>\n - <a href=\"doc/new.md#api_nan_null\"><b><code>Nan::Null()</code></b></a>\n - <a href=\"doc/new.md#api_nan_true\"><b><code>Nan::True()</code></b></a>\n - <a href=\"doc/new.md#api_nan_false\"><b><code>Nan::False()</code></b></a>\n - <a href=\"doc/new.md#api_nan_empty_string\"><b><code>Nan::EmptyString()</code></b></a>\n\n### Converters\n\nNAN contains functions that convert `v8::Value`s to other `v8::Value` types and native types. Since type conversion is not guaranteed to succeed, they return `Nan::Maybe` types. These converters can be used in place of `value->ToX()` and `value->XValue()` (where `X` is one of the types, e.g. `Boolean`) in a way that provides a consistent interface across V8 versions. Newer versions of V8 use the new `v8::Maybe` and `v8::MaybeLocal` types for these conversions, older versions don't have this functionality so it is provided by NAN.\n\n - <a href=\"doc/converters.md#api_nan_to\"><b><code>Nan::To()</code></b></a>\n\n### Maybe Types\n\nThe `Nan::MaybeLocal` and `Nan::Maybe` types are monads that encapsulate `v8::Local` handles that _may be empty_.\n\n* **Maybe Types**\n - <a href=\"doc/maybe_types.md#api_nan_maybe_local\"><b><code>Nan::MaybeLocal</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_maybe\"><b><code>Nan::Maybe</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_nothing\"><b><code>Nan::Nothing</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_just\"><b><code>Nan::Just</code></b></a>\n* **Maybe Helpers**\n - <a href=\"doc/maybe_types.md#api_nan_call\"><b><code>Nan::Call()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_to_detail_string\"><b><code>Nan::ToDetailString()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_to_array_index\"><b><code>Nan::ToArrayIndex()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_equals\"><b><code>Nan::Equals()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_new_instance\"><b><code>Nan::NewInstance()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_function\"><b><code>Nan::GetFunction()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_set\"><b><code>Nan::Set()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_define_own_property\"><b><code>Nan::DefineOwnProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_force_set\"><del><b><code>Nan::ForceSet()</code></b></del></a>\n - <a href=\"doc/maybe_types.md#api_nan_get\"><b><code>Nan::Get()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_property_attribute\"><b><code>Nan::GetPropertyAttributes()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has\"><b><code>Nan::Has()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_delete\"><b><code>Nan::Delete()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_property_names\"><b><code>Nan::GetPropertyNames()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_own_property_names\"><b><code>Nan::GetOwnPropertyNames()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_set_prototype\"><b><code>Nan::SetPrototype()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_object_proto_to_string\"><b><code>Nan::ObjectProtoToString()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has_own_property\"><b><code>Nan::HasOwnProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has_real_named_property\"><b><code>Nan::HasRealNamedProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has_real_indexed_property\"><b><code>Nan::HasRealIndexedProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has_real_named_callback_property\"><b><code>Nan::HasRealNamedCallbackProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_real_named_property_in_prototype_chain\"><b><code>Nan::GetRealNamedPropertyInPrototypeChain()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_real_named_property\"><b><code>Nan::GetRealNamedProperty()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_call_as_function\"><b><code>Nan::CallAsFunction()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_call_as_constructor\"><b><code>Nan::CallAsConstructor()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_source_line\"><b><code>Nan::GetSourceLine()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_line_number\"><b><code>Nan::GetLineNumber()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_start_column\"><b><code>Nan::GetStartColumn()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_end_column\"><b><code>Nan::GetEndColumn()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_clone_element_at\"><b><code>Nan::CloneElementAt()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_has_private\"><b><code>Nan::HasPrivate()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_get_private\"><b><code>Nan::GetPrivate()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_set_private\"><b><code>Nan::SetPrivate()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_delete_private\"><b><code>Nan::DeletePrivate()</code></b></a>\n - <a href=\"doc/maybe_types.md#api_nan_make_maybe\"><b><code>Nan::MakeMaybe()</code></b></a>\n\n### Script\n\nNAN provides a `v8::Script` helpers as the API has changed over the supported versions of V8.\n\n - <a href=\"doc/script.md#api_nan_compile_script\"><b><code>Nan::CompileScript()</code></b></a>\n - <a href=\"doc/script.md#api_nan_run_script\"><b><code>Nan::RunScript()</code></b></a>\n\n### JSON\n\nThe _JSON_ object provides the c++ versions of the methods offered by the `JSON` object in javascript. V8 exposes these methods via the `v8::JSON` object.\n\n - <a href=\"doc/json.md#api_nan_json_parse\"><b><code>Nan::JSON.Parse</code></b></a>\n - <a href=\"doc/json.md#api_nan_json_stringify\"><b><code>Nan::JSON.Stringify</code></b></a>\n\nRefer to the V8 JSON object in the [V8 documentation](https://v8docs.nodesource.com/node-8.11/da/d6f/classv8_1_1_j_s_o_n.html) for more information about these methods and their arguments.\n\n### Errors\n\nNAN includes helpers for creating, throwing and catching Errors as much of this functionality varies across the supported versions of V8 and must be abstracted.\n\nNote that an Error object is simply a specialized form of `v8::Value`.\n\nAlso consult the V8 Embedders Guide section on [Exceptions](https://developers.google.com/v8/embed#exceptions) for more information.\n\n - <a href=\"doc/errors.md#api_nan_error\"><b><code>Nan::Error()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_range_error\"><b><code>Nan::RangeError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_reference_error\"><b><code>Nan::ReferenceError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_syntax_error\"><b><code>Nan::SyntaxError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_type_error\"><b><code>Nan::TypeError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_throw_error\"><b><code>Nan::ThrowError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_throw_range_error\"><b><code>Nan::ThrowRangeError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_throw_reference_error\"><b><code>Nan::ThrowReferenceError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_throw_syntax_error\"><b><code>Nan::ThrowSyntaxError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_throw_type_error\"><b><code>Nan::ThrowTypeError()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_fatal_exception\"><b><code>Nan::FatalException()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_errno_exception\"><b><code>Nan::ErrnoException()</code></b></a>\n - <a href=\"doc/errors.md#api_nan_try_catch\"><b><code>Nan::TryCatch</code></b></a>\n\n### Buffers\n\nNAN's `node::Buffer` helpers exist as the API has changed across supported Node versions. Use these methods to ensure compatibility.\n\n - <a href=\"doc/buffers.md#api_nan_new_buffer\"><b><code>Nan::NewBuffer()</code></b></a>\n - <a href=\"doc/buffers.md#api_nan_copy_buffer\"><b><code>Nan::CopyBuffer()</code></b></a>\n - <a href=\"doc/buffers.md#api_nan_free_callback\"><b><code>Nan::FreeCallback()</code></b></a>\n\n### Nan::Callback\n\n`Nan::Callback` makes it easier to use `v8::Function` handles as callbacks. A class that wraps a `v8::Function` handle, protecting it from garbage collection and making it particularly useful for storage and use across asynchronous execution.\n\n - <a href=\"doc/callback.md#api_nan_callback\"><b><code>Nan::Callback</code></b></a>\n\n### Asynchronous work helpers\n\n`Nan::AsyncWorker`, `Nan::AsyncProgressWorker` and `Nan::AsyncProgressQueueWorker` are helper classes that make working with asynchronous code easier.\n\n - <a href=\"doc/asyncworker.md#api_nan_async_worker\"><b><code>Nan::AsyncWorker</code></b></a>\n - <a href=\"doc/asyncworker.md#api_nan_async_progress_worker\"><b><code>Nan::AsyncProgressWorkerBase & Nan::AsyncProgressWorker</code></b></a>\n - <a href=\"doc/asyncworker.md#api_nan_async_progress_queue_worker\"><b><code>Nan::AsyncProgressQueueWorker</code></b></a>\n - <a href=\"doc/asyncworker.md#api_nan_async_queue_worker\"><b><code>Nan::AsyncQueueWorker</code></b></a>\n\n### Strings & Bytes\n\nMiscellaneous string & byte encoding and decoding functionality provided for compatibility across supported versions of V8 and Node. Implemented by NAN to ensure that all encoding types are supported, even for older versions of Node where they are missing.\n\n - <a href=\"doc/string_bytes.md#api_nan_encoding\"><b><code>Nan::Encoding</code></b></a>\n - <a href=\"doc/string_bytes.md#api_nan_encode\"><b><code>Nan::Encode()</code></b></a>\n - <a href=\"doc/string_bytes.md#api_nan_decode_bytes\"><b><code>Nan::DecodeBytes()</code></b></a>\n - <a href=\"doc/string_bytes.md#api_nan_decode_write\"><b><code>Nan::DecodeWrite()</code></b></a>\n\n### Object Wrappers\n\nThe `ObjectWrap` class can be used to make wrapped C++ objects and a factory of wrapped objects.\n\n - <a href=\"doc/object_wrappers.md#api_nan_object_wrap\"><b><code>Nan::ObjectWrap</code></b></a>\n\n### V8 internals\n\nThe hooks to access V8 internals—including GC and statistics—are different across the supported versions of V8, therefore NAN provides its own hooks that call the appropriate V8 methods.\n\n - <a href=\"doc/v8_internals.md#api_nan_gc_callback\"><b><code>NAN_GC_CALLBACK()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_add_gc_epilogue_callback\"><b><code>Nan::AddGCEpilogueCallback()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_remove_gc_epilogue_callback\"><b><code>Nan::RemoveGCEpilogueCallback()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_add_gc_prologue_callback\"><b><code>Nan::AddGCPrologueCallback()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_remove_gc_prologue_callback\"><b><code>Nan::RemoveGCPrologueCallback()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_get_heap_statistics\"><b><code>Nan::GetHeapStatistics()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_set_counter_function\"><b><code>Nan::SetCounterFunction()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_set_create_histogram_function\"><b><code>Nan::SetCreateHistogramFunction()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_set_add_histogram_sample_function\"><b><code>Nan::SetAddHistogramSampleFunction()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_idle_notification\"><b><code>Nan::IdleNotification()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_low_memory_notification\"><b><code>Nan::LowMemoryNotification()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_context_disposed_notification\"><b><code>Nan::ContextDisposedNotification()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_get_internal_field_pointer\"><b><code>Nan::GetInternalFieldPointer()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_set_internal_field_pointer\"><b><code>Nan::SetInternalFieldPointer()</code></b></a>\n - <a href=\"doc/v8_internals.md#api_nan_adjust_external_memory\"><b><code>Nan::AdjustExternalMemory()</code></b></a>\n\n### Miscellaneous V8 Helpers\n\n - <a href=\"doc/v8_misc.md#api_nan_utf8_string\"><b><code>Nan::Utf8String</code></b></a>\n - <a href=\"doc/v8_misc.md#api_nan_get_current_context\"><b><code>Nan::GetCurrentContext()</code></b></a>\n - <a href=\"doc/v8_misc.md#api_nan_set_isolate_data\"><b><code>Nan::SetIsolateData()</code></b></a>\n - <a href=\"doc/v8_misc.md#api_nan_get_isolate_data\"><b><code>Nan::GetIsolateData()</code></b></a>\n - <a href=\"doc/v8_misc.md#api_nan_typedarray_contents\"><b><code>Nan::TypedArrayContents</code></b></a>\n\n### Miscellaneous Node Helpers\n\n - <a href=\"doc/node_misc.md#api_nan_asyncresource\"><b><code>Nan::AsyncResource</code></b></a>\n - <a href=\"doc/node_misc.md#api_nan_make_callback\"><b><code>Nan::MakeCallback()</code></b></a>\n - <a href=\"doc/node_misc.md#api_nan_module_init\"><b><code>NAN_MODULE_INIT()</code></b></a>\n - <a href=\"doc/node_misc.md#api_nan_export\"><b><code>Nan::Export()</code></b></a>\n\n<!-- END API -->\n\n<a name=\"tests\"></a>\n\n### Tests\n\nTo run the NAN tests do:\n\n``` sh\nnpm install\nnpm run-script rebuild-tests\nnpm test\n```\n\nOr just:\n\n``` sh\nnpm install\nmake test\n```\n\n<a name=\"issues\"></a>\n\n## Known issues\n\n### Compiling against Node.js 0.12 on OSX\n\nWith new enough compilers available on OSX, the versions of V8 headers corresponding to Node.js 0.12\ndo not compile anymore. The error looks something like:\n\n```\n❯ CXX(target) Release/obj.target/accessors/cpp/accessors.o\nIn file included from ../cpp/accessors.cpp:9:\nIn file included from ../../nan.h:51:\nIn file included from /Users/ofrobots/.node-gyp/0.12.18/include/node/node.h:61:\n/Users/ofrobots/.node-gyp/0.12.18/include/node/v8.h:5800:54: error: 'CreateHandle' is a protected member of 'v8::HandleScope'\n return Handle<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(\n ~~~~~~~~~~~~~^~~~~~~~~~~~\n```\n\nThis can be worked around by patching your local versions of v8.h corresponding to Node 0.12 to make\n`v8::Handle` a friend of `v8::HandleScope`. Since neither Node.js not V8 support this release line anymore\nthis patch cannot be released by either project in an official release.\n\nFor this reason, we do not test against Node.js 0.12 on OSX in this project's CI. If you need to support\nthat configuration, you will need to either get an older compiler, or apply a source patch to the version\nof V8 headers as a workaround.\n\n<a name=\"governance\"></a>\n\n## Governance & Contributing\n\nNAN is governed by the [Node.js Addon API Working Group](https://github.com/nodejs/CTC/blob/master/WORKING_GROUPS.md#addon-api)\n\n### Addon API Working Group (WG)\n\nThe NAN project is jointly governed by a Working Group which is responsible for high-level guidance of the project.\n\nMembers of the WG are also known as Collaborators, there is no distinction between the two, unlike other Node.js projects.\n\nThe WG has final authority over this project including:\n\n* Technical direction\n* Project governance and process (including this policy)\n* Contribution policy\n* GitHub repository hosting\n* Maintaining the list of additional Collaborators\n\nFor the current list of WG members, see the project [README.md](./README.md#collaborators).\n\nIndividuals making significant and valuable contributions are made members of the WG and given commit-access to the project. These individuals are identified by the WG and their addition to the WG is discussed via GitHub and requires unanimous consensus amongst those WG members participating in the discussion with a quorum of 50% of WG members required for acceptance of the vote.\n\n_Note:_ If you make a significant contribution and are not considered for commit-access log an issue or contact a WG member directly.\n\nFor the current list of WG members / Collaborators, see the project [README.md](./README.md#collaborators).\n\n### Consensus Seeking Process\n\nThe WG follows a [Consensus Seeking](https://en.wikipedia.org/wiki/Consensus-seeking_decision-making) decision making model.\n\nModifications of the contents of the NAN repository are made on a collaborative basis. Anybody with a GitHub account may propose a modification via pull request and it will be considered by the WG. All pull requests must be reviewed and accepted by a WG member with sufficient expertise who is able to take full responsibility for the change. In the case of pull requests proposed by an existing WG member, an additional WG member is required for sign-off. Consensus should be sought if additional WG members participate and there is disagreement around a particular modification.\n\nIf a change proposal cannot reach a consensus, a WG member can call for a vote amongst the members of the WG. Simple majority wins.\n\n<a id=\"developers-certificate-of-origin\"></a>\n\n## Developer's Certificate of Origin 1.1\n\nBy making a contribution to this project, I certify that:\n\n* (a) The contribution was created in whole or in part by me and I\n have the right to submit it under the open source license\n indicated in the file; or\n\n* (b) The contribution is based upon previous work that, to the best\n of my knowledge, is covered under an appropriate open source\n license and I have the right under that license to submit that\n work with modifications, whether created in whole or in part\n by me, under the same open source license (unless I am\n permitted to submit under a different license), as indicated\n in the file; or\n\n* (c) The contribution was provided directly to me by some other\n person who certified (a), (b) or (c) and I have not modified\n it.\n\n* (d) I understand and agree that this project and the contribution\n are public and that a record of the contribution (including all\n personal information I submit with it, including my sign-off) is\n maintained indefinitely and may be redistributed consistent with\n this project or the open source license(s) involved.\n\n<a name=\"collaborators\"></a>\n\n### WG Members / Collaborators\n\n<table><tbody>\n<tr><th align=\"left\">Rod Vagg</th><td><a href=\"https://github.com/rvagg\">GitHub/rvagg</a></td><td><a href=\"http://twitter.com/rvagg\">Twitter/@rvagg</a></td></tr>\n<tr><th align=\"left\">Benjamin Byholm</th><td><a href=\"https://github.com/kkoopa/\">GitHub/kkoopa</a></td><td>-</td></tr>\n<tr><th align=\"left\">Trevor Norris</th><td><a href=\"https://github.com/trevnorris\">GitHub/trevnorris</a></td><td><a href=\"http://twitter.com/trevnorris\">Twitter/@trevnorris</a></td></tr>\n<tr><th align=\"left\">Nathan Rajlich</th><td><a href=\"https://github.com/TooTallNate\">GitHub/TooTallNate</a></td><td><a href=\"http://twitter.com/TooTallNate\">Twitter/@TooTallNate</a></td></tr>\n<tr><th align=\"left\">Brett Lawson</th><td><a href=\"https://github.com/brett19\">GitHub/brett19</a></td><td><a href=\"http://twitter.com/brett19x\">Twitter/@brett19x</a></td></tr>\n<tr><th align=\"left\">Ben Noordhuis</th><td><a href=\"https://github.com/bnoordhuis\">GitHub/bnoordhuis</a></td><td><a href=\"http://twitter.com/bnoordhuis\">Twitter/@bnoordhuis</a></td></tr>\n<tr><th align=\"left\">David Siegel</th><td><a href=\"https://github.com/agnat\">GitHub/agnat</a></td><td><a href=\"http://twitter.com/agnat\">Twitter/@agnat</a></td></tr>\n<tr><th align=\"left\">Michael Ira Krufky</th><td><a href=\"https://github.com/mkrufky\">GitHub/mkrufky</a></td><td><a href=\"http://twitter.com/mkrufky\">Twitter/@mkrufky</a></td></tr>\n</tbody></table>\n\n## Licence & copyright\n\nCopyright (c) 2018 NAN WG Members / Collaborators (listed above).\n\nNative Abstractions for Node.js is licensed under an MIT license. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.\nhas-unicode\n===========\n\nTry to guess if your terminal supports unicode\n\n```javascript\nvar hasUnicode = require(\"has-unicode\")\n\nif (hasUnicode()) {\n // the terminal probably has unicode support\n}\n```\n```javascript\nvar hasUnicode = require(\"has-unicode\").tryHarder\nhasUnicode(function(unicodeSupported) {\n if (unicodeSupported) {\n // the terminal probably has unicode support\n }\n})\n```\n\n## Detecting Unicode\n\nWhat we actually detect is UTF-8 support, as that's what Node itself supports.\nIf you have a UTF-16 locale then you won't be detected as unicode capable.\n\n### Windows\n\nSince at least Windows 7, `cmd` and `powershell` have been unicode capable,\nbut unfortunately even then it's not guaranteed. In many localizations it\nstill uses legacy code pages and there's no facility short of running\nprograms or linking C++ that will let us detect this. As such, we\nreport any Windows installation as NOT unicode capable, and recommend\nthat you encourage your users to override this via config.\n\n### Unix Like Operating Systems\n\nWe look at the environment variables `LC_ALL`, `LC_CTYPE`, and `LANG` in\nthat order. For `LC_ALL` and `LANG`, it looks for `.UTF-8` in the value. \nFor `LC_CTYPE` it looks to see if the value is `UTF-8`. This is sufficient\nfor most POSIX systems. While locale data can be put in `/etc/locale.conf`\nas well, AFAIK it's always copied into the environment.\n# obuf - Offset buffer implementation.\n\nByte buffer specialized for data in chunks with special cases for dropping\nbytes in the front, merging bytes in to various integer types and\nabandoning buffer without penalty for previous chunk merges.\n\nUsed in spyd-transport, part of spdy support for http2.\n\nThis software is licensed under the MIT License.\n\nBy Fedor Indutny, 2015.\n# end-of-stream\n\nA node module that calls a callback when a readable/writable/duplex stream has completed or failed.\n\n\tnpm install end-of-stream\n\n## Usage\n\nSimply pass a stream and a callback to the `eos`.\nBoth legacy streams, streams2 and stream3 are supported.\n\n``` js\nvar eos = require('end-of-stream');\n\neos(readableStream, function(err) {\n // this will be set to the stream instance\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended', this === readableStream);\n});\n\neos(writableStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished', this === writableStream);\n});\n\neos(duplexStream, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended and finished', this === duplexStream);\n});\n\neos(duplexStream, {readable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has finished but might still be readable');\n});\n\neos(duplexStream, {writable:false}, function(err) {\n\tif (err) return console.log('stream had an error or closed early');\n\tconsole.log('stream has ended but might still be writable');\n});\n\neos(readableStream, {error:false}, function(err) {\n\t// do not treat emit('error', err) as a end-of-stream\n});\n```\n\n## License\n\nMIT\n\n## Related\n\n`end-of-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# utils-merge\n\n[](https://www.npmjs.com/package/utils-merge)\n[](https://travis-ci.org/jaredhanson/utils-merge)\n[](https://codeclimate.com/github/jaredhanson/utils-merge)\n[](https://coveralls.io/r/jaredhanson/utils-merge)\n[](https://david-dm.org/jaredhanson/utils-merge)\n\nMerges the properties from a source object into a destination object.\n\n## Install\n\n```bash\n$ npm install utils-merge\n```\n\n## Usage\n\n```javascript\nvar a = { foo: 'bar' }\n , b = { bar: 'baz' };\n\nmerge(a, b);\n// => { foo: 'bar', bar: 'baz' }\n```\n\n## License\n\n[The MIT License](http://opensource.org/licenses/MIT)\n\nCopyright (c) 2013-2017 Jared Hanson <[http://jaredhanson.net/](http://jaredhanson.net/)>\n\n<a target='_blank' rel='nofollow' href='https://app.codesponsor.io/link/vK9dyjRnnWsMzzJTQ57fRJpH/jaredhanson/utils-merge'> <img alt='Sponsor' width='888' height='68' src='https://app.codesponsor.io/embed/vK9dyjRnnWsMzzJTQ57fRJpH/jaredhanson/utils-merge.svg' /></a>\n# is-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/is-buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/is-buffer\n[npm-image]: https://img.shields.io/npm/v/is-buffer.svg\n[npm-url]: https://npmjs.org/package/is-buffer\n[downloads-image]: https://img.shields.io/npm/dm/is-buffer.svg\n[downloads-url]: https://npmjs.org/package/is-buffer\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n#### Determine if an object is a [`Buffer`](http://nodejs.org/api/buffer.html) (including the [browserify Buffer](https://github.com/feross/buffer))\n\n[![saucelabs][saucelabs-image]][saucelabs-url]\n\n[saucelabs-image]: https://saucelabs.com/browser-matrix/is-buffer.svg\n[saucelabs-url]: https://saucelabs.com/u/is-buffer\n\n## Why not use `Buffer.isBuffer`?\n\nThis module lets you check if an object is a `Buffer` without using `Buffer.isBuffer` (which includes the whole [buffer](https://github.com/feross/buffer) module in [browserify](http://browserify.org/)).\n\nIt's future-proof and works in node too!\n\n## install\n\n```bash\nnpm install is-buffer\n```\n\n## usage\n\n```js\nvar isBuffer = require('is-buffer')\n\nisBuffer(new Buffer(4)) // true\n\nisBuffer(undefined) // false\nisBuffer(null) // false\nisBuffer('') // false\nisBuffer(true) // false\nisBuffer(false) // false\nisBuffer(0) // false\nisBuffer(1) // false\nisBuffer(1.0) // false\nisBuffer('string') // false\nisBuffer({}) // false\nisBuffer(function foo () {}) // false\n```\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org).\n# which\n\nLike the unix `which` utility.\n\nFinds the first instance of a specified executable in the PATH\nenvironment variable. Does not cache the results, so `hash -r` is not\nneeded when the PATH changes.\n\n## USAGE\n\n```javascript\nvar which = require('which')\n\n// async usage\nwhich('node', function (er, resolvedPath) {\n // er is returned if no \"node\" is found on the PATH\n // if it is found, then the absolute path to the exec is returned\n})\n\n// sync usage\n// throws if not found\nvar resolved = which.sync('node')\n\n// if nothrow option is used, returns null if not found\nresolved = which.sync('node', {nothrow: true})\n\n// Pass options to override the PATH and PATHEXT environment vars.\nwhich('node', { path: someOtherPath }, function (er, resolved) {\n if (er)\n throw er\n console.log('found at %j', resolved)\n})\n```\n\n## CLI USAGE\n\nSame as the BSD `which(1)` binary.\n\n```\nusage: which [-as] program ...\n```\n\n## OPTIONS\n\nYou may pass an options object as the second argument.\n\n- `path`: Use instead of the `PATH` environment variable.\n- `pathExt`: Use instead of the `PATHEXT` environment variable.\n- `all`: Return all matches, instead of just the first one. Note that\n this means the function returns an array of strings instead of a\n single string.\n# npm-bundled\n\nRun this in a node package, and it'll tell you which things in\nnode_modules are bundledDependencies, or transitive dependencies of\nbundled dependencies.\n\n[](https://travis-ci.org/npm/npm-bundled)\n\n## USAGE\n\nTo get the list of deps at the top level that are bundled (or\ntransitive deps of a bundled dep) run this:\n\n```js\nconst bundled = require('npm-bundled')\n\n// async version\nbundled({ path: '/path/to/pkg/defaults/to/cwd'}, (er, list) => {\n // er means it had an error, which is _hella_ weird\n // list is a list of package names, like `fooblz` or `@corp/blerg`\n // the might not all be deps of the top level, because transitives\n})\n\n// async promise version\nbundled({ path: '/path/to/pkg/defaults/to/cwd'}).then(list => {\n // so promisey!\n // actually the callback version returns a promise, too, it just\n // attaches the supplied callback to the promise\n})\n\n// sync version, throws if there's an error\nconst list = bundled({ path: '/path/to/pkg/defaults/to/cwd'})\n```\n\nThat's basically all you need to know. If you care to dig into it,\nyou can also use the `bundled.Walker` and `bundled.WalkerSync`\nclasses to get fancy.\n\nThis library does not write anything to the filesystem, but it _may_\nhave undefined behavior if the structure of `node_modules` changes\nwhile it's reading deps.\n\nAll symlinks are followed. This means that it can lead to surprising\nresults if a symlinked bundled dependency has a missing dependency\nthat is satisfied at the top level. Since package creation resolves\nsymlinks as well, this is an edge case where package creation and\ndevelopment environment are not going to be aligned, and is best\navoided.\n# detect-libc\n\nNode.js module to detect the C standard library (libc) implementation\nfamily and version in use on a given Linux system.\n\nProvides a value suitable for use with the `LIBC` option of\n[prebuild](https://www.npmjs.com/package/prebuild),\n[prebuild-ci](https://www.npmjs.com/package/prebuild-ci) and\n[prebuild-install](https://www.npmjs.com/package/prebuild-install),\ntherefore allowing build and provision of pre-compiled binaries\nfor musl-based Linux e.g. Alpine as well as glibc-based.\n\nCurrently supports libc detection of `glibc` and `musl`.\n\n## Install\n\n```sh\nnpm install detect-libc\n```\n\n## Usage\n\n### API\n\n```js\nconst { GLIBC, MUSL, family, version, isNonGlibcLinux } = require('detect-libc');\n```\n\n* `GLIBC` is a String containing the value \"glibc\" for comparison with `family`.\n* `MUSL` is a String containing the value \"musl\" for comparison with `family`.\n* `family` is a String representing the system libc family.\n* `version` is a String representing the system libc version number.\n* `isNonGlibcLinux` is a Boolean representing whether the system is a non-glibc Linux, e.g. Alpine.\n\n### detect-libc command line tool\n\nWhen run on a Linux system with a non-glibc libc,\nthe child command will be run with the `LIBC` environment variable\nset to the relevant value.\n\nOn all other platforms will run the child command as-is.\n\nThe command line feature requires `spawnSync` provided by Node v0.12+.\n\n```sh\ndetect-libc child-command\n```\n\n## Integrating with prebuild\n\n```json\n \"scripts\": {\n \"install\": \"detect-libc prebuild-install || node-gyp rebuild\",\n \"test\": \"mocha && detect-libc prebuild-ci\"\n },\n \"dependencies\": {\n \"detect-libc\": \"^1.0.2\",\n \"prebuild-install\": \"^2.2.0\"\n },\n \"devDependencies\": {\n \"prebuild\": \"^6.2.1\",\n \"prebuild-ci\": \"^2.2.3\"\n }\n```\n\n## Licence\n\nCopyright 2017 Lovell Fuller\n\nLicensed under the Apache License, Version 2.0 (the \"License\");\nyou may not use this file except in compliance with the License.\nYou may obtain a copy of the License at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0.html)\n\nUnless required by applicable law or agreed to in writing, software\ndistributed under the License is distributed on an \"AS IS\" BASIS,\nWITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\nSee the License for the specific language governing permissions and\nlimitations under the License.\n# homedir-polyfill [](https://www.npmjs.com/package/homedir-polyfill) [](https://npmjs.org/package/homedir-polyfill) [](https://npmjs.org/package/homedir-polyfill) [](https://travis-ci.org/doowb/homedir-polyfill) [](https://ci.appveyor.com/project/doowb/homedir-polyfill)\n\n> Node.js os.homedir polyfill for older versions of node.js.\n\nPlease consider following this project's author, [Brian Woodward](https://github.com/doowb), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save homedir-polyfill\n```\n\n## Usage\n\n```js\nvar homedir = require('homedir-polyfill');\nconsole.log(homedir());\n//=> /Users/doowb\n```\n\n## Reasoning\n\nThis library is a polyfill for the [node.js os.homedir](https://nodejs.org/api/os.html#os_os_homedir) method found in modern versions of node.js.\n\nThis implementation tries to follow the implementation found in `libuv` by finding the current user using the `process.geteuid()` method and the `/etc/passwd` file. This should usually work in a linux environment, but will also fallback to looking at user specific environment variables to build the user's home directory if neccessary.\n\nSince `/etc/passwd` is not available on windows platforms, this implementation will use environment variables to find the home directory.\n\nIn modern versions of node.js, [os.homedir](https://nodejs.org/api/os.html#os_os_homedir) is used.\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](contributing.md) for advice on opening issues, pull requests, and coding standards.\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n[parse-passwd](https://www.npmjs.com/package/parse-passwd): Parse a passwd file into a list of users. | [homepage](https://github.com/doowb/parse-passwd \"Parse a passwd file into a list of users.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 19 | [doowb](https://github.com/doowb) | \n| 2 | [martinheidegger](https://github.com/martinheidegger) | \n\n### Author\n\n**Brian Woodward**\n\n* [GitHub Profile](https://github.com/doowb)\n* [Twitter Profile](https://twitter.com/doowb)\n* [LinkedIn Profile](https://linkedin.com/in/woodwardbrian)\n\n### License\n\nCopyright © 2016 - 2019, [Brian Woodward](https://github.com/doowb).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on February 21, 2019._\n# body-parser\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nNode.js body parsing middleware.\n\nParse incoming request bodies in a middleware before your handlers, available\nunder the `req.body` property.\n\n**Note** As `req.body`'s shape is based on user-controlled input, all\nproperties and values in this object are untrusted and should be validated\nbefore trusting. For example, `req.body.foo.toString()` may fail in multiple\nways, for example the `foo` property may not be there or may not be a string,\nand `toString` may not be a function and instead a string or other user input.\n\n[Learn about the anatomy of an HTTP transaction in Node.js](https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/).\n\n_This does not handle multipart bodies_, due to their complex and typically\nlarge nature. For multipart bodies, you may be interested in the following\nmodules:\n\n * [busboy](https://www.npmjs.org/package/busboy#readme) and\n [connect-busboy](https://www.npmjs.org/package/connect-busboy#readme)\n * [multiparty](https://www.npmjs.org/package/multiparty#readme) and\n [connect-multiparty](https://www.npmjs.org/package/connect-multiparty#readme)\n * [formidable](https://www.npmjs.org/package/formidable#readme)\n * [multer](https://www.npmjs.org/package/multer#readme)\n\nThis module provides the following parsers:\n\n * [JSON body parser](#bodyparserjsonoptions)\n * [Raw body parser](#bodyparserrawoptions)\n * [Text body parser](#bodyparsertextoptions)\n * [URL-encoded form body parser](#bodyparserurlencodedoptions)\n\nOther body parsers you might be interested in:\n\n- [body](https://www.npmjs.org/package/body#readme)\n- [co-body](https://www.npmjs.org/package/co-body#readme)\n\n## Installation\n\n```sh\n$ npm install body-parser\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar bodyParser = require('body-parser')\n```\n\nThe `bodyParser` object exposes various factories to create middlewares. All\nmiddlewares will populate the `req.body` property with the parsed body when\nthe `Content-Type` request header matches the `type` option, or an empty\nobject (`{}`) if there was no body to parse, the `Content-Type` was not matched,\nor an error occurred.\n\nThe various errors returned by this module are described in the\n[errors section](#errors).\n\n### bodyParser.json([options])\n\nReturns middleware that only parses `json` and only looks at requests where\nthe `Content-Type` header matches the `type` option. This parser accepts any\nUnicode encoding of the body and supports automatic inflation of `gzip` and\n`deflate` encodings.\n\nA new `body` object containing the parsed data is populated on the `request`\nobject after the middleware (i.e. `req.body`).\n\n#### Options\n\nThe `json` function takes an optional `options` object that may contain any of\nthe following keys:\n\n##### inflate\n\nWhen set to `true`, then deflated (compressed) bodies will be inflated; when\n`false`, deflated bodies are rejected. Defaults to `true`.\n\n##### limit\n\nControls the maximum request body size. If this is a number, then the value\nspecifies the number of bytes; if it is a string, the value is passed to the\n[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults\nto `'100kb'`.\n\n##### reviver\n\nThe `reviver` option is passed directly to `JSON.parse` as the second\nargument. You can find more information on this argument\n[in the MDN documentation about JSON.parse](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Example.3A_Using_the_reviver_parameter).\n\n##### strict\n\nWhen set to `true`, will only accept arrays and objects; when `false` will\naccept anything `JSON.parse` accepts. Defaults to `true`.\n\n##### type\n\nThe `type` option is used to determine what media type the middleware will\nparse. This option can be a string, array of strings, or a function. If not a\nfunction, `type` option is passed directly to the\n[type-is](https://www.npmjs.org/package/type-is#readme) library and this can\nbe an extension name (like `json`), a mime type (like `application/json`), or\na mime type with a wildcard (like `*/*` or `*/json`). If a function, the `type`\noption is called as `fn(req)` and the request is parsed if it returns a truthy\nvalue. Defaults to `application/json`.\n\n##### verify\n\nThe `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,\nwhere `buf` is a `Buffer` of the raw request body and `encoding` is the\nencoding of the request. The parsing can be aborted by throwing an error.\n\n### bodyParser.raw([options])\n\nReturns middleware that parses all bodies as a `Buffer` and only looks at\nrequests where the `Content-Type` header matches the `type` option. This\nparser supports automatic inflation of `gzip` and `deflate` encodings.\n\nA new `body` object containing the parsed data is populated on the `request`\nobject after the middleware (i.e. `req.body`). This will be a `Buffer` object\nof the body.\n\n#### Options\n\nThe `raw` function takes an optional `options` object that may contain any of\nthe following keys:\n\n##### inflate\n\nWhen set to `true`, then deflated (compressed) bodies will be inflated; when\n`false`, deflated bodies are rejected. Defaults to `true`.\n\n##### limit\n\nControls the maximum request body size. If this is a number, then the value\nspecifies the number of bytes; if it is a string, the value is passed to the\n[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults\nto `'100kb'`.\n\n##### type\n\nThe `type` option is used to determine what media type the middleware will\nparse. This option can be a string, array of strings, or a function.\nIf not a function, `type` option is passed directly to the\n[type-is](https://www.npmjs.org/package/type-is#readme) library and this\ncan be an extension name (like `bin`), a mime type (like\n`application/octet-stream`), or a mime type with a wildcard (like `*/*` or\n`application/*`). If a function, the `type` option is called as `fn(req)`\nand the request is parsed if it returns a truthy value. Defaults to\n`application/octet-stream`.\n\n##### verify\n\nThe `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,\nwhere `buf` is a `Buffer` of the raw request body and `encoding` is the\nencoding of the request. The parsing can be aborted by throwing an error.\n\n### bodyParser.text([options])\n\nReturns middleware that parses all bodies as a string and only looks at\nrequests where the `Content-Type` header matches the `type` option. This\nparser supports automatic inflation of `gzip` and `deflate` encodings.\n\nA new `body` string containing the parsed data is populated on the `request`\nobject after the middleware (i.e. `req.body`). This will be a string of the\nbody.\n\n#### Options\n\nThe `text` function takes an optional `options` object that may contain any of\nthe following keys:\n\n##### defaultCharset\n\nSpecify the default character set for the text content if the charset is not\nspecified in the `Content-Type` header of the request. Defaults to `utf-8`.\n\n##### inflate\n\nWhen set to `true`, then deflated (compressed) bodies will be inflated; when\n`false`, deflated bodies are rejected. Defaults to `true`.\n\n##### limit\n\nControls the maximum request body size. If this is a number, then the value\nspecifies the number of bytes; if it is a string, the value is passed to the\n[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults\nto `'100kb'`.\n\n##### type\n\nThe `type` option is used to determine what media type the middleware will\nparse. This option can be a string, array of strings, or a function. If not\na function, `type` option is passed directly to the\n[type-is](https://www.npmjs.org/package/type-is#readme) library and this can\nbe an extension name (like `txt`), a mime type (like `text/plain`), or a mime\ntype with a wildcard (like `*/*` or `text/*`). If a function, the `type`\noption is called as `fn(req)` and the request is parsed if it returns a\ntruthy value. Defaults to `text/plain`.\n\n##### verify\n\nThe `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,\nwhere `buf` is a `Buffer` of the raw request body and `encoding` is the\nencoding of the request. The parsing can be aborted by throwing an error.\n\n### bodyParser.urlencoded([options])\n\nReturns middleware that only parses `urlencoded` bodies and only looks at\nrequests where the `Content-Type` header matches the `type` option. This\nparser accepts only UTF-8 encoding of the body and supports automatic\ninflation of `gzip` and `deflate` encodings.\n\nA new `body` object containing the parsed data is populated on the `request`\nobject after the middleware (i.e. `req.body`). This object will contain\nkey-value pairs, where the value can be a string or array (when `extended` is\n`false`), or any type (when `extended` is `true`).\n\n#### Options\n\nThe `urlencoded` function takes an optional `options` object that may contain\nany of the following keys:\n\n##### extended\n\nThe `extended` option allows to choose between parsing the URL-encoded data\nwith the `querystring` library (when `false`) or the `qs` library (when\n`true`). The \"extended\" syntax allows for rich objects and arrays to be\nencoded into the URL-encoded format, allowing for a JSON-like experience\nwith URL-encoded. For more information, please\n[see the qs library](https://www.npmjs.org/package/qs#readme).\n\nDefaults to `true`, but using the default has been deprecated. Please\nresearch into the difference between `qs` and `querystring` and choose the\nappropriate setting.\n\n##### inflate\n\nWhen set to `true`, then deflated (compressed) bodies will be inflated; when\n`false`, deflated bodies are rejected. Defaults to `true`.\n\n##### limit\n\nControls the maximum request body size. If this is a number, then the value\nspecifies the number of bytes; if it is a string, the value is passed to the\n[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults\nto `'100kb'`.\n\n##### parameterLimit\n\nThe `parameterLimit` option controls the maximum number of parameters that\nare allowed in the URL-encoded data. If a request contains more parameters\nthan this value, a 413 will be returned to the client. Defaults to `1000`.\n\n##### type\n\nThe `type` option is used to determine what media type the middleware will\nparse. This option can be a string, array of strings, or a function. If not\na function, `type` option is passed directly to the\n[type-is](https://www.npmjs.org/package/type-is#readme) library and this can\nbe an extension name (like `urlencoded`), a mime type (like\n`application/x-www-form-urlencoded`), or a mime type with a wildcard (like\n`*/x-www-form-urlencoded`). If a function, the `type` option is called as\n`fn(req)` and the request is parsed if it returns a truthy value. Defaults\nto `application/x-www-form-urlencoded`.\n\n##### verify\n\nThe `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,\nwhere `buf` is a `Buffer` of the raw request body and `encoding` is the\nencoding of the request. The parsing can be aborted by throwing an error.\n\n## Errors\n\nThe middlewares provided by this module create errors depending on the error\ncondition during parsing. The errors will typically have a `status`/`statusCode`\nproperty that contains the suggested HTTP response code, an `expose` property\nto determine if the `message` property should be displayed to the client, a\n`type` property to determine the type of error without matching against the\n`message`, and a `body` property containing the read body, if available.\n\nThe following are the common errors emitted, though any error can come through\nfor various reasons.\n\n### content encoding unsupported\n\nThis error will occur when the request had a `Content-Encoding` header that\ncontained an encoding but the \"inflation\" option was set to `false`. The\n`status` property is set to `415`, the `type` property is set to\n`'encoding.unsupported'`, and the `charset` property will be set to the\nencoding that is unsupported.\n\n### request aborted\n\nThis error will occur when the request is aborted by the client before reading\nthe body has finished. The `received` property will be set to the number of\nbytes received before the request was aborted and the `expected` property is\nset to the number of expected bytes. The `status` property is set to `400`\nand `type` property is set to `'request.aborted'`.\n\n### request entity too large\n\nThis error will occur when the request body's size is larger than the \"limit\"\noption. The `limit` property will be set to the byte limit and the `length`\nproperty will be set to the request body's length. The `status` property is\nset to `413` and the `type` property is set to `'entity.too.large'`.\n\n### request size did not match content length\n\nThis error will occur when the request's length did not match the length from\nthe `Content-Length` header. This typically occurs when the request is malformed,\ntypically when the `Content-Length` header was calculated based on characters\ninstead of bytes. The `status` property is set to `400` and the `type` property\nis set to `'request.size.invalid'`.\n\n### stream encoding should not be set\n\nThis error will occur when something called the `req.setEncoding` method prior\nto this middleware. This module operates directly on bytes only and you cannot\ncall `req.setEncoding` when using this module. The `status` property is set to\n`500` and the `type` property is set to `'stream.encoding.set'`.\n\n### too many parameters\n\nThis error will occur when the content of the request exceeds the configured\n`parameterLimit` for the `urlencoded` parser. The `status` property is set to\n`413` and the `type` property is set to `'parameters.too.many'`.\n\n### unsupported charset \"BOGUS\"\n\nThis error will occur when the request had a charset parameter in the\n`Content-Type` header, but the `iconv-lite` module does not support it OR the\nparser does not support it. The charset is contained in the message as well\nas in the `charset` property. The `status` property is set to `415`, the\n`type` property is set to `'charset.unsupported'`, and the `charset` property\nis set to the charset that is unsupported.\n\n### unsupported content encoding \"bogus\"\n\nThis error will occur when the request had a `Content-Encoding` header that\ncontained an unsupported encoding. The encoding is contained in the message\nas well as in the `encoding` property. The `status` property is set to `415`,\nthe `type` property is set to `'encoding.unsupported'`, and the `encoding`\nproperty is set to the encoding that is unsupported.\n\n## Examples\n\n### Express/Connect top-level generic\n\nThis example demonstrates adding a generic JSON and URL-encoded parser as a\ntop-level middleware, which will parse the bodies of all incoming requests.\nThis is the simplest setup.\n\n```js\nvar express = require('express')\nvar bodyParser = require('body-parser')\n\nvar app = express()\n\n// parse application/x-www-form-urlencoded\napp.use(bodyParser.urlencoded({ extended: false }))\n\n// parse application/json\napp.use(bodyParser.json())\n\napp.use(function (req, res) {\n res.setHeader('Content-Type', 'text/plain')\n res.write('you posted:\\n')\n res.end(JSON.stringify(req.body, null, 2))\n})\n```\n\n### Express route-specific\n\nThis example demonstrates adding body parsers specifically to the routes that\nneed them. In general, this is the most recommended way to use body-parser with\nExpress.\n\n```js\nvar express = require('express')\nvar bodyParser = require('body-parser')\n\nvar app = express()\n\n// create application/json parser\nvar jsonParser = bodyParser.json()\n\n// create application/x-www-form-urlencoded parser\nvar urlencodedParser = bodyParser.urlencoded({ extended: false })\n\n// POST /login gets urlencoded bodies\napp.post('/login', urlencodedParser, function (req, res) {\n if (!req.body) return res.sendStatus(400)\n res.send('welcome, ' + req.body.username)\n})\n\n// POST /api/users gets JSON bodies\napp.post('/api/users', jsonParser, function (req, res) {\n if (!req.body) return res.sendStatus(400)\n // create user in req.body\n})\n```\n\n### Change accepted type for parsers\n\nAll the parsers accept a `type` option which allows you to change the\n`Content-Type` that the middleware will parse.\n\n```js\nvar express = require('express')\nvar bodyParser = require('body-parser')\n\nvar app = express()\n\n// parse various different custom JSON types as JSON\napp.use(bodyParser.json({ type: 'application/*+json' }))\n\n// parse some custom thing into a Buffer\napp.use(bodyParser.raw({ type: 'application/vnd.custom-type' }))\n\n// parse an HTML body into a string\napp.use(bodyParser.text({ type: 'text/html' }))\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/body-parser.svg\n[npm-url]: https://npmjs.org/package/body-parser\n[travis-image]: https://img.shields.io/travis/expressjs/body-parser/master.svg\n[travis-url]: https://travis-ci.org/expressjs/body-parser\n[coveralls-image]: https://img.shields.io/coveralls/expressjs/body-parser/master.svg\n[coveralls-url]: https://coveralls.io/r/expressjs/body-parser?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/body-parser.svg\n[downloads-url]: https://npmjs.org/package/body-parser\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://coveralls.io/github/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://unpkg.com/source-map@0.7.3/dist/source-map.js\"></script>\n <script>\n sourceMap.SourceMapConsumer.initialize({\n \"lib/mappings.wasm\": \"https://unpkg.com/source-map@0.7.3/lib/mappings.wasm\"\n });\n </script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [SourceMapConsumer.initialize(options)](#sourcemapconsumerinitializeoptions)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.with](#sourcemapconsumerwith)\n - [SourceMapConsumer.prototype.destroy()](#sourcemapconsumerprototypedestroy)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nconst rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nconst whatever = await SourceMapConsumer.with(rawSourceMap, null, consumer => {\n\n console.log(consumer.sources);\n // [ 'http://example.com/www/js/one.js',\n // 'http://example.com/www/js/two.js' ]\n\n console.log(consumer.originalPositionFor({\n line: 2,\n column: 28\n }));\n // { source: 'http://example.com/www/js/two.js',\n // line: 2,\n // column: 10,\n // name: 'n' }\n\n console.log(consumer.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n }));\n // { line: 2, column: 28 }\n\n consumer.eachMapping(function (m) {\n // ...\n });\n\n return computeWhatever();\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA `SourceMapConsumer` instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### SourceMapConsumer.initialize(options)\n\nWhen using `SourceMapConsumer` outside of node.js, for example on the Web, it\nneeds to know from what URL to load `lib/mappings.wasm`. You must inform it by\ncalling `initialize` before constructing any `SourceMapConsumer`s.\n\nThe options object has the following properties:\n\n* `\"lib/mappings.wasm\"`: A `String` containing the URL of the\n `lib/mappings.wasm` file.\n\n```js\nsourceMap.SourceMapConsumer.initialize({\n \"lib/mappings.wasm\": \"https://example.com/source-map/lib/mappings.wasm\"\n});\n```\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\nThe promise of the constructed souce map consumer is returned.\n\nWhen the `SourceMapConsumer` will no longer be used anymore, you must call its\n`destroy` method.\n\n```js\nconst consumer = await new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\ndoStuffWith(consumer);\nconsumer.destroy();\n```\n\nAlternatively, you can use `SourceMapConsumer.with` to avoid needing to remember\nto call `destroy`.\n\n#### SourceMapConsumer.with\n\nConstruct a new `SourceMapConsumer` from `rawSourceMap` and `sourceMapUrl`\n(see the `SourceMapConsumer` constructor for details. Then, invoke the `async\nfunction f(SourceMapConsumer) -> T` with the newly constructed consumer, wait\nfor `f` to complete, call `destroy` on the consumer, and return `f`'s return\nvalue.\n\nYou must not use the consumer after `f` completes!\n\nBy using `with`, you do not have to remember to manually call `destroy` on\nthe consumer, since it will be called automatically once `f` completes.\n\n```js\nconst xSquared = await SourceMapConsumer.with(\n myRawSourceMap,\n null,\n async function (consumer) {\n // Use `consumer` inside here and don't worry about remembering\n // to call `destroy`.\n\n const x = await whatever(consumer);\n return x * x;\n }\n);\n\n// You may not use that `consumer` anymore out here; it has\n// been destroyed. But you can use `xSquared`.\nconsole.log(xSquared);\n```\n\n#### SourceMapConsumer.prototype.destroy()\n\nFree this source map consumer's associated wasm data that is manually-managed.\n\n```js\nconsumer.destroy();\n```\n\nAlternatively, you can use `SourceMapConsumer.with` to avoid needing to remember\nto call `destroy`.\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nconst consumer = await new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nconst node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"), consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# jsprim: utilities for primitive JavaScript types\n\nThis module provides miscellaneous facilities for working with strings,\nnumbers, dates, and objects and arrays of these basic types.\n\n### deepCopy(obj)\n\nCreates a deep copy of a primitive type, object, or array of primitive types.\n\n### deepEqual(obj1, obj2)\n\nReturns whether two objects are equal.\n\n### isEmpty(obj)\n\nReturns true if the given object has no properties and false otherwise. This\nis O(1) (unlike `Object.keys(obj).length === 0`, which is O(N)).\n\n### hasKey(obj, key)\n\nReturns true if the given object has an enumerable, non-inherited property\ncalled `key`. [For information on enumerability and ownership of properties, see\nthe MDN\ndocumentation.](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Enumerability_and_ownership_of_properties)\n\n### forEachKey(obj, callback)\n\nLike Array.forEach, but iterates enumerable, owned properties of an object\nrather than elements of an array. Equivalent to:\n\n for (var key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n callback(key, obj[key]);\n }\n }\n\n### flattenObject(obj, depth)\n\nFlattens an object up to a given level of nesting, returning an array of arrays\nof length \"depth + 1\", where the first \"depth\" elements correspond to flattened\ncolumns and the last element contains the remaining object . For example:\n\n flattenObject({\n 'I': {\n 'A': {\n 'i': {\n 'datum1': [ 1, 2 ],\n 'datum2': [ 3, 4 ]\n },\n 'ii': {\n 'datum1': [ 3, 4 ]\n }\n },\n 'B': {\n 'i': {\n 'datum1': [ 5, 6 ]\n },\n 'ii': {\n 'datum1': [ 7, 8 ],\n 'datum2': [ 3, 4 ],\n },\n 'iii': {\n }\n }\n },\n 'II': {\n 'A': {\n 'i': {\n 'datum1': [ 1, 2 ],\n 'datum2': [ 3, 4 ]\n }\n }\n }\n }, 3)\n\nbecomes:\n\n [\n [ 'I', 'A', 'i', { 'datum1': [ 1, 2 ], 'datum2': [ 3, 4 ] } ],\n [ 'I', 'A', 'ii', { 'datum1': [ 3, 4 ] } ],\n [ 'I', 'B', 'i', { 'datum1': [ 5, 6 ] } ],\n [ 'I', 'B', 'ii', { 'datum1': [ 7, 8 ], 'datum2': [ 3, 4 ] } ],\n [ 'I', 'B', 'iii', {} ],\n [ 'II', 'A', 'i', { 'datum1': [ 1, 2 ], 'datum2': [ 3, 4 ] } ]\n ]\n\nThis function is strict: \"depth\" must be a non-negative integer and \"obj\" must\nbe a non-null object with at least \"depth\" levels of nesting under all keys.\n\n### flattenIter(obj, depth, func)\n\nThis is similar to `flattenObject` except that instead of returning an array,\nthis function invokes `func(entry)` for each `entry` in the array that\n`flattenObject` would return. `flattenIter(obj, depth, func)` is logically\nequivalent to `flattenObject(obj, depth).forEach(func)`. Importantly, this\nversion never constructs the full array. Its memory usage is O(depth) rather\nthan O(n) (where `n` is the number of flattened elements).\n\nThere's another difference between `flattenObject` and `flattenIter` that's\nrelated to the special case where `depth === 0`. In this case, `flattenObject`\nomits the array wrapping `obj` (which is regrettable).\n\n### pluck(obj, key)\n\nFetch nested property \"key\" from object \"obj\", traversing objects as needed.\nFor example, `pluck(obj, \"foo.bar.baz\")` is roughly equivalent to\n`obj.foo.bar.baz`, except that:\n\n1. If traversal fails, the resulting value is undefined, and no error is\n thrown. For example, `pluck({}, \"foo.bar\")` is just undefined.\n2. If \"obj\" has property \"key\" directly (without traversing), the\n corresponding property is returned. For example,\n `pluck({ 'foo.bar': 1 }, 'foo.bar')` is 1, not undefined. This is also\n true recursively, so `pluck({ 'a': { 'foo.bar': 1 } }, 'a.foo.bar')` is\n also 1, not undefined.\n\n### randElt(array)\n\nReturns an element from \"array\" selected uniformly at random. If \"array\" is\nempty, throws an Error.\n\n### startsWith(str, prefix)\n\nReturns true if the given string starts with the given prefix and false\notherwise.\n\n### endsWith(str, suffix)\n\nReturns true if the given string ends with the given suffix and false\notherwise.\n\n### parseInteger(str, options)\n\nParses the contents of `str` (a string) as an integer. On success, the integer\nvalue is returned (as a number). On failure, an error is **returned** describing\nwhy parsing failed.\n\nBy default, leading and trailing whitespace characters are not allowed, nor are\ntrailing characters that are not part of the numeric representation. This\nbehaviour can be toggled by using the options below. The empty string (`''`) is\nnot considered valid input. If the return value cannot be precisely represented\nas a number (i.e., is smaller than `Number.MIN_SAFE_INTEGER` or larger than\n`Number.MAX_SAFE_INTEGER`), an error is returned. Additionally, the string\n`'-0'` will be parsed as the integer `0`, instead of as the IEEE floating point\nvalue `-0`.\n\nThis function accepts both upper and lowercase characters for digits, similar to\n`parseInt()`, `Number()`, and [strtol(3C)](https://illumos.org/man/3C/strtol).\n\nThe following may be specified in `options`:\n\nOption | Type | Default | Meaning\n------------------ | ------- | ------- | ---------------------------\nbase | number | 10 | numeric base (radix) to use, in the range 2 to 36\nallowSign | boolean | true | whether to interpret any leading `+` (positive) and `-` (negative) characters\nallowImprecise | boolean | false | whether to accept values that may have lost precision (past `MAX_SAFE_INTEGER` or below `MIN_SAFE_INTEGER`)\nallowPrefix | boolean | false | whether to interpret the prefixes `0b` (base 2), `0o` (base 8), `0t` (base 10), or `0x` (base 16)\nallowTrailing | boolean | false | whether to ignore trailing characters\ntrimWhitespace | boolean | false | whether to trim any leading or trailing whitespace/line terminators\nleadingZeroIsOctal | boolean | false | whether a leading zero indicates octal\n\nNote that if `base` is unspecified, and `allowPrefix` or `leadingZeroIsOctal`\nare, then the leading characters can change the default base from 10. If `base`\nis explicitly specified and `allowPrefix` is true, then the prefix will only be\naccepted if it matches the specified base. `base` and `leadingZeroIsOctal`\ncannot be used together.\n\n**Context:** It's tricky to parse integers with JavaScript's built-in facilities\nfor several reasons:\n\n- `parseInt()` and `Number()` by default allow the base to be specified in the\n input string by a prefix (e.g., `0x` for hex).\n- `parseInt()` allows trailing nonnumeric characters.\n- `Number(str)` returns 0 when `str` is the empty string (`''`).\n- Both functions return incorrect values when the input string represents a\n valid integer outside the range of integers that can be represented precisely.\n Specifically, `parseInt('9007199254740993')` returns 9007199254740992.\n- Both functions always accept `-` and `+` signs before the digit.\n- Some older JavaScript engines always interpret a leading 0 as indicating\n octal, which can be surprising when parsing input from users who expect a\n leading zero to be insignificant.\n\nWhile each of these may be desirable in some contexts, there are also times when\nnone of them are wanted. `parseInteger()` grants greater control over what\ninput's permissible.\n\n### iso8601(date)\n\nConverts a Date object to an ISO8601 date string of the form\n\"YYYY-MM-DDTHH:MM:SS.sssZ\". This format is not customizable.\n\n### parseDateTime(str)\n\nParses a date expressed as a string, as either a number of milliseconds since\nthe epoch or any string format that Date accepts, giving preference to the\nformer where these two sets overlap (e.g., strings containing small numbers).\n\n### hrtimeDiff(timeA, timeB)\n\nGiven two hrtime readings (as from Node's `process.hrtime()`), where timeA is\nlater than timeB, compute the difference and return that as an hrtime. It is\nillegal to invoke this for a pair of times where timeB is newer than timeA.\n\n### hrtimeAdd(timeA, timeB)\n\nAdd two hrtime intervals (as from Node's `process.hrtime()`), returning a new\nhrtime interval array. This function does not modify either input argument.\n\n### hrtimeAccum(timeA, timeB)\n\nAdd two hrtime intervals (as from Node's `process.hrtime()`), storing the\nresult in `timeA`. This function overwrites (and returns) the first argument\npassed in.\n\n### hrtimeNanosec(timeA), hrtimeMicrosec(timeA), hrtimeMillisec(timeA)\n\nThis suite of functions converts a hrtime interval (as from Node's\n`process.hrtime()`) into a scalar number of nanoseconds, microseconds or\nmilliseconds. Results are truncated, as with `Math.floor()`.\n\n### validateJsonObject(schema, object)\n\nUses JSON validation (via JSV) to validate the given object against the given\nschema. On success, returns null. On failure, *returns* (does not throw) a\nuseful Error object.\n\n### extraProperties(object, allowed)\n\nCheck an object for unexpected properties. Accepts the object to check, and an\narray of allowed property name strings. If extra properties are detected, an\narray of extra property names is returned. If no properties other than those\nin the allowed list are present on the object, the returned array will be of\nzero length.\n\n### mergeObjects(provided, overrides, defaults)\n\nMerge properties from objects \"provided\", \"overrides\", and \"defaults\". The\nintended use case is for functions that accept named arguments in an \"args\"\nobject, but want to provide some default values and override other values. In\nthat case, \"provided\" is what the caller specified, \"overrides\" are what the\nfunction wants to override, and \"defaults\" contains default values.\n\nThe function starts with the values in \"defaults\", overrides them with the\nvalues in \"provided\", and then overrides those with the values in \"overrides\".\nFor convenience, any of these objects may be falsey, in which case they will be\nignored. The input objects are never modified, but properties in the returned\nobject are not deep-copied.\n\nFor example:\n\n mergeObjects(undefined, { 'objectMode': true }, { 'highWaterMark': 0 })\n\nreturns:\n\n { 'objectMode': true, 'highWaterMark': 0 }\n\nFor another example:\n\n mergeObjects(\n { 'highWaterMark': 16, 'objectMode': 7 }, /* from caller */\n { 'objectMode': true }, /* overrides */\n { 'highWaterMark': 0 }); /* default */\n\nreturns:\n\n { 'objectMode': true, 'highWaterMark': 16 }\n\n# Contributing\n\nSee separate [contribution guidelines](CONTRIBUTING.md).\n# ESLint Scope\n\nESLint Scope is the [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm) scope analyzer used in ESLint. It is a fork of [escope](http://github.com/estools/escope).\n\n## Usage\n\nInstall:\n\n```\nnpm i eslint-scope --save\n```\n\nExample:\n\n```js\nvar eslintScope = require('eslint-scope');\nvar espree = require('espree');\nvar estraverse = require('estraverse');\n\nvar ast = espree.parse(code);\nvar scopeManager = eslintScope.analyze(ast);\n\nvar currentScope = scopeManager.acquire(ast); // global scope\n\nestraverse.traverse(ast, {\n enter: function(node, parent) {\n // do stuff\n\n if (/Function/.test(node.type)) {\n currentScope = scopeManager.acquire(node); // get current function scope\n }\n },\n leave: function(node, parent) {\n if (/Function/.test(node.type)) {\n currentScope = currentScope.upper; // set to parent scope\n }\n\n // do stuff\n }\n});\n```\n\n## Contributing\n\nIssues and pull requests will be triaged and responded to as quickly as possible. We operate under the [ESLint Contributor Guidelines](http://eslint.org/docs/developer-guide/contributing), so please be sure to read them before contributing. If you're not sure where to dig in, check out the [issues](https://github.com/eslint/eslint-scope/issues).\n\n## Build Commands\n\n* `npm test` - run all linting and tests\n* `npm run lint` - run all linting\n\n## License\n\nESLint Scope is licensed under a permissive BSD 2-clause license.\n<p align=\"center\">\n <img width=\"250\" src=\"/yargs-logo.png\">\n</p>\n<h1 align=\"center\"> Yargs </h1>\n<p align=\"center\">\n <b >Yargs be a node.js library fer hearties tryin' ter parse optstrings</b>\n</p>\n<br>\n\n[![Build Status][travis-image]][travis-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n[![NPM version][npm-image]][npm-url]\n[![js-standard-style][standard-image]][standard-url]\n[![Conventional Commits][conventional-commits-image]][conventional-commits-url]\n[![Slack][slack-image]][slack-url]\n\n## Description :\nYargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface. \n\nIt gives you:\n\n* commands and (grouped) options (`my-program.js serve --port=5000`).\n* a dynamically generated help menu based on your arguments.\n\n> <img width=\"400\" src=\"/screen.png\">\n\n* bash-completion shortcuts for commands and options.\n* and [tons more](/docs/api.md).\n\n## Installation\n\nStable version:\n```bash\nnpm i yargs --save\n```\n\nBleeding edge version with the most recent features:\n```bash\nnpm i yargs@next --save\n```\n\n## Usage :\n\n### Simple Example\n\n````javascript\n#!/usr/bin/env node\nconst argv = require('yargs').argv\n\nif (argv.ships > 3 && argv.distance < 53.5) {\n console.log('Plunder more riffiwobbles!')\n} else {\n console.log('Retreat from the xupptumblers!')\n}\n````\n\n```bash\n$ ./plunder.js --ships=4 --distance=22\nPlunder more riffiwobbles!\n\n$ ./plunder.js --ships 12 --distance 98.7\nRetreat from the xupptumblers!\n```\n\n### Complex Example\n\n```javascript\n#!/usr/bin/env node\nrequire('yargs') // eslint-disable-line\n .command('serve [port]', 'start the server', (yargs) => {\n yargs\n .positional('port', {\n describe: 'port to bind on',\n default: 5000\n })\n }, (argv) => {\n if (argv.verbose) console.info(`start server on :${argv.port}`)\n serve(argv.port)\n })\n .option('verbose', {\n alias: 'v',\n default: false\n })\n .argv\n```\n\nRun the example above with `--help` to see the help for the application.\n\n## Community :\n\nHaving problems? want to contribute? join our [community slack](http://devtoolscommunity.herokuapp.com).\n\n## Documentation :\n\n### Table of Contents\n\n* [Yargs' API](/docs/api.md)\n* [Examples](/docs/examples.md)\n* [Parsing Tricks](/docs/tricks.md)\n * [Stop the Parser](/docs/tricks.md#stop)\n * [Negating Boolean Arguments](/docs/tricks.md#negate)\n * [Numbers](/docs/tricks.md#numbers)\n * [Arrays](/docs/tricks.md#arrays)\n * [Objects](/docs/tricks.md#objects)\n* [Advanced Topics](/docs/advanced.md)\n * [Composing Your App Using Commands](/docs/advanced.md#commands)\n * [Building Configurable CLI Apps](/docs/advanced.md#configuration)\n * [Customizing Yargs' Parser](/docs/advanced.md#customizing)\n* [Contributing](/contributing.md)\n\n[travis-url]: https://travis-ci.org/yargs/yargs\n[travis-image]: https://img.shields.io/travis/yargs/yargs/master.svg\n[coveralls-url]: https://coveralls.io/github/yargs/yargs\n[coveralls-image]: https://img.shields.io/coveralls/yargs/yargs.svg\n[npm-url]: https://www.npmjs.com/package/yargs\n[npm-image]: https://img.shields.io/npm/v/yargs.svg\n[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg\n[standard-url]: http://standardjs.com/\n[conventional-commits-image]: https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg\n[conventional-commits-url]: https://conventionalcommits.org/\n[slack-image]: http://devtoolscommunity.herokuapp.com/badge.svg\n[slack-url]: http://devtoolscommunity.herokuapp.com\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\nThis folder contains entry points for all stable `core-js` features with dependencies. It's the recommended way for usage only required features.\n# Console Control Strings\n\nA library of cross-platform tested terminal/console command strings for\ndoing things like color and cursor positioning. This is a subset of both\nansi and vt100. All control codes included work on both Windows & Unix-like\nOSes, except where noted.\n\n## Usage\n\n```js\nvar consoleControl = require('console-control-strings')\n\nconsole.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))\nprocess.stdout.write(consoleControl.goto(75, 10))\n```\n\n## Why Another?\n\nThere are tons of libraries similar to this one. I wanted one that was:\n\n1. Very clear about compatibility goals.\n2. Could emit, for instance, a start color code without an end one.\n3. Returned strings w/o writing to streams.\n4. Was not weighed down with other unrelated baggage.\n\n## Functions\n\n### var code = consoleControl.up(_num = 1_)\n\nReturns the escape sequence to move _num_ lines up.\n\n### var code = consoleControl.down(_num = 1_)\n\nReturns the escape sequence to move _num_ lines down.\n\n### var code = consoleControl.forward(_num = 1_)\n\nReturns the escape sequence to move _num_ lines righ.\n\n### var code = consoleControl.back(_num = 1_)\n\nReturns the escape sequence to move _num_ lines left.\n\n### var code = consoleControl.nextLine(_num = 1_)\n\nReturns the escape sequence to move _num_ lines down and to the beginning of\nthe line.\n\n### var code = consoleControl.previousLine(_num = 1_)\n\nReturns the escape sequence to move _num_ lines up and to the beginning of\nthe line.\n\n### var code = consoleControl.eraseData()\n\nReturns the escape sequence to erase everything from the current cursor\nposition to the bottom right of the screen. This is line based, so it\nerases the remainder of the current line and all following lines.\n\n### var code = consoleControl.eraseLine()\n\nReturns the escape sequence to erase to the end of the current line.\n\n### var code = consoleControl.goto(_x_, _y_)\n\nReturns the escape sequence to move the cursor to the designated position. \nNote that the origin is _1, 1_ not _0, 0_.\n\n### var code = consoleControl.gotoSOL()\n\nReturns the escape sequence to move the cursor to the beginning of the\ncurrent line. (That is, it returns a carriage return, `\\r`.)\n\n### var code = consoleControl.beep()\n\nReturns the escape sequence to cause the termianl to beep. (That is, it\nreturns unicode character `\\x0007`, a Control-G.)\n\n### var code = consoleControl.hideCursor()\n\nReturns the escape sequence to hide the cursor.\n\n### var code = consoleControl.showCursor()\n\nReturns the escape sequence to show the cursor.\n\n### var code = consoleControl.color(_colors = []_)\n\n### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)\n\nReturns the escape sequence to set the current terminal display attributes\n(mostly colors). Arguments can either be a list of attributes or an array\nof attributes. The difference between passing in an array or list of colors\nand calling `.color` separately for each one, is that in the former case a\nsingle escape sequence will be produced where as in the latter each change\nwill have its own distinct escape sequence. Each attribute can be one of:\n\n* Reset:\n * **reset** – Reset all attributes to the terminal default.\n* Styles:\n * **bold** – Display text as bold. In some terminals this means using a\n bold font, in others this means changing the color. In some it means\n both.\n * **italic** – Display text as italic. This is not available in most Windows terminals.\n * **underline** – Underline text. This is not available in most Windows Terminals.\n * **inverse** – Invert the foreground and background colors.\n * **stopBold** – Do not display text as bold.\n * **stopItalic** – Do not display text as italic.\n * **stopUnderline** – Do not underline text.\n * **stopInverse** – Do not invert foreground and background.\n* Colors:\n * **white**\n * **black**\n * **blue**\n * **cyan**\n * **green**\n * **magenta**\n * **red**\n * **yellow**\n * **grey** / **brightBlack**\n * **brightRed**\n * **brightGreen**\n * **brightYellow**\n * **brightBlue**\n * **brightMagenta**\n * **brightCyan**\n * **brightWhite**\n* Background Colors:\n * **bgWhite**\n * **bgBlack**\n * **bgBlue**\n * **bgCyan**\n * **bgGreen**\n * **bgMagenta**\n * **bgRed**\n * **bgYellow**\n * **bgGrey** / **bgBrightBlack**\n * **bgBrightRed**\n * **bgBrightGreen**\n * **bgBrightYellow**\n * **bgBrightBlue**\n * **bgBrightMagenta**\n * **bgBrightCyan**\n * **bgBrightWhite**\n# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg\n[travis-url]: https://travis-ci.org/feross/safe-buffer\n[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg\n[npm-url]: https://npmjs.org/package/safe-buffer\n[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg\n[downloads-url]: https://npmjs.org/package/safe-buffer\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n#### Safer Node.js Buffer API\n\n**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,\n`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**\n\n**Uses the built-in implementation when available.**\n\n## install\n\n```\nnpm install safe-buffer\n```\n\n## usage\n\nThe goal of this package is to provide a safe replacement for the node.js `Buffer`.\n\nIt's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to\nthe top of your node.js modules:\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n\n// Existing buffer code will continue to work without issues:\n\nnew Buffer('hey', 'utf8')\nnew Buffer([1, 2, 3], 'utf8')\nnew Buffer(obj)\nnew Buffer(16) // create an uninitialized buffer (potentially unsafe)\n\n// But you can use these new explicit APIs to make clear what you want:\n\nBuffer.from('hey', 'utf8') // convert from many types to a Buffer\nBuffer.alloc(16) // create a zero-filled buffer (safe)\nBuffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)\n```\n\n## api\n\n### Class Method: Buffer.from(array)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `array` {Array}\n\nAllocates a new `Buffer` using an `array` of octets.\n\n```js\nconst buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);\n // creates a new Buffer containing ASCII bytes\n // ['b','u','f','f','e','r']\n```\n\nA `TypeError` will be thrown if `array` is not an `Array`.\n\n### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or\n a `new ArrayBuffer()`\n* `byteOffset` {Number} Default: `0`\n* `length` {Number} Default: `arrayBuffer.length - byteOffset`\n\nWhen passed a reference to the `.buffer` property of a `TypedArray` instance,\nthe newly created `Buffer` will share the same allocated memory as the\nTypedArray.\n\n```js\nconst arr = new Uint16Array(2);\narr[0] = 5000;\narr[1] = 4000;\n\nconst buf = Buffer.from(arr.buffer); // shares the memory with arr;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 a0 0f>\n\n// changing the TypedArray changes the Buffer also\narr[1] = 6000;\n\nconsole.log(buf);\n // Prints: <Buffer 88 13 70 17>\n```\n\nThe optional `byteOffset` and `length` arguments specify a memory range within\nthe `arrayBuffer` that will be shared by the `Buffer`.\n\n```js\nconst ab = new ArrayBuffer(10);\nconst buf = Buffer.from(ab, 0, 2);\nconsole.log(buf.length);\n // Prints: 2\n```\n\nA `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.\n\n### Class Method: Buffer.from(buffer)\n<!-- YAML\nadded: v3.0.0\n-->\n\n* `buffer` {Buffer}\n\nCopies the passed `buffer` data onto a new `Buffer` instance.\n\n```js\nconst buf1 = Buffer.from('buffer');\nconst buf2 = Buffer.from(buf1);\n\nbuf1[0] = 0x61;\nconsole.log(buf1.toString());\n // 'auffer'\nconsole.log(buf2.toString());\n // 'buffer' (copy is not changed)\n```\n\nA `TypeError` will be thrown if `buffer` is not a `Buffer`.\n\n### Class Method: Buffer.from(str[, encoding])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `str` {String} String to encode.\n* `encoding` {String} Encoding to use, Default: `'utf8'`\n\nCreates a new `Buffer` containing the given JavaScript string `str`. If\nprovided, the `encoding` parameter identifies the character encoding.\nIf not provided, `encoding` defaults to `'utf8'`.\n\n```js\nconst buf1 = Buffer.from('this is a tést');\nconsole.log(buf1.toString());\n // prints: this is a tést\nconsole.log(buf1.toString('ascii'));\n // prints: this is a tC)st\n\nconst buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');\nconsole.log(buf2.toString());\n // prints: this is a tést\n```\n\nA `TypeError` will be thrown if `str` is not a string.\n\n### Class Method: Buffer.alloc(size[, fill[, encoding]])\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n* `fill` {Value} Default: `undefined`\n* `encoding` {String} Default: `utf8`\n\nAllocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the\n`Buffer` will be *zero-filled*.\n\n```js\nconst buf = Buffer.alloc(5);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nThe `size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nIf `fill` is specified, the allocated `Buffer` will be initialized by calling\n`buf.fill(fill)`. See [`buf.fill()`][] for more information.\n\n```js\nconst buf = Buffer.alloc(5, 'a');\nconsole.log(buf);\n // <Buffer 61 61 61 61 61>\n```\n\nIf both `fill` and `encoding` are specified, the allocated `Buffer` will be\ninitialized by calling `buf.fill(fill, encoding)`. For example:\n\n```js\nconst buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');\nconsole.log(buf);\n // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>\n```\n\nCalling `Buffer.alloc(size)` can be significantly slower than the alternative\n`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance\ncontents will *never contain sensitive data*.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### Class Method: Buffer.allocUnsafe(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must\nbe less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit\narchitectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is\nthrown. A zero-length Buffer will be created if a `size` less than or equal to\n0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\n```js\nconst buf = Buffer.allocUnsafe(5);\nconsole.log(buf);\n // <Buffer 78 e0 82 02 01>\n // (octets will be different, every time)\nbuf.fill(0);\nconsole.log(buf);\n // <Buffer 00 00 00 00 00>\n```\n\nA `TypeError` will be thrown if `size` is not a number.\n\nNote that the `Buffer` module pre-allocates an internal `Buffer` instance of\nsize `Buffer.poolSize` that is used as a pool for the fast allocation of new\n`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated\n`new Buffer(size)` constructor) only when `size` is less than or equal to\n`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default\nvalue of `Buffer.poolSize` is `8192` but can be modified.\n\nUse of this pre-allocated internal memory pool is a key difference between\ncalling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.\nSpecifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer\npool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal\nBuffer pool if `size` is less than or equal to half `Buffer.poolSize`. The\ndifference is subtle but can be important when an application requires the\nadditional performance that `Buffer.allocUnsafe(size)` provides.\n\n### Class Method: Buffer.allocUnsafeSlow(size)\n<!-- YAML\nadded: v5.10.0\n-->\n\n* `size` {Number}\n\nAllocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The\n`size` must be less than or equal to the value of\n`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is\n`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will\nbe created if a `size` less than or equal to 0 is specified.\n\nThe underlying memory for `Buffer` instances created in this way is *not\ninitialized*. The contents of the newly created `Buffer` are unknown and\n*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such\n`Buffer` instances to zeroes.\n\nWhen using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,\nallocations under 4KB are, by default, sliced from a single pre-allocated\n`Buffer`. This allows applications to avoid the garbage collection overhead of\ncreating many individually allocated Buffers. This approach improves both\nperformance and memory usage by eliminating the need to track and cleanup as\nmany `Persistent` objects.\n\nHowever, in the case where a developer may need to retain a small chunk of\nmemory from a pool for an indeterminate amount of time, it may be appropriate\nto create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then\ncopy out the relevant bits.\n\n```js\n// need to keep around a few small chunks of memory\nconst store = [];\n\nsocket.on('readable', () => {\n const data = socket.read();\n // allocate for retained data\n const sb = Buffer.allocUnsafeSlow(10);\n // copy the data into the new allocation\n data.copy(sb, 0, 0, 10);\n store.push(sb);\n});\n```\n\nUse of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*\na developer has observed undue memory retention in their applications.\n\nA `TypeError` will be thrown if `size` is not a number.\n\n### All the Rest\n\nThe rest of the `Buffer` API is exactly the same as in node.js.\n[See the docs](https://nodejs.org/api/buffer.html).\n\n## Related links\n\n- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)\n- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)\n\n## Why is `Buffer` unsafe?\n\nToday, the node.js `Buffer` constructor is overloaded to handle many different argument\ntypes like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),\n`ArrayBuffer`, and also `Number`.\n\nThe API is optimized for convenience: you can throw any type at it, and it will try to do\nwhat you want.\n\nBecause the Buffer constructor is so powerful, you often see code like this:\n\n```js\n// Convert UTF-8 strings to hex\nfunction toHex (str) {\n return new Buffer(str).toString('hex')\n}\n```\n\n***But what happens if `toHex` is called with a `Number` argument?***\n\n### Remote Memory Disclosure\n\nIf an attacker can make your program call the `Buffer` constructor with a `Number`\nargument, then they can make it allocate uninitialized memory from the node.js process.\nThis could potentially disclose TLS private keys, user data, or database passwords.\n\nWhen the `Buffer` constructor is passed a `Number` argument, it returns an\n**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like\nthis, you **MUST** overwrite the contents before returning it to the user.\n\nFrom the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):\n\n> `new Buffer(size)`\n>\n> - `size` Number\n>\n> The underlying memory for `Buffer` instances created in this way is not initialized.\n> **The contents of a newly created `Buffer` are unknown and could contain sensitive\n> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.\n\n(Emphasis our own.)\n\nWhenever the programmer intended to create an uninitialized `Buffer` you often see code\nlike this:\n\n```js\nvar buf = new Buffer(16)\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### Would this ever be a problem in real code?\n\nYes. It's surprisingly common to forget to check the type of your variables in a\ndynamically-typed language like JavaScript.\n\nUsually the consequences of assuming the wrong type is that your program crashes with an\nuncaught exception. But the failure mode for forgetting to check the type of arguments to\nthe `Buffer` constructor is more catastrophic.\n\nHere's an example of a vulnerable service that takes a JSON payload and converts it to\nhex:\n\n```js\n// Take a JSON payload {str: \"some string\"} and convert it to hex\nvar server = http.createServer(function (req, res) {\n var data = ''\n req.setEncoding('utf8')\n req.on('data', function (chunk) {\n data += chunk\n })\n req.on('end', function () {\n var body = JSON.parse(data)\n res.end(new Buffer(body.str).toString('hex'))\n })\n})\n\nserver.listen(8080)\n```\n\nIn this example, an http client just has to send:\n\n```json\n{\n \"str\": 1000\n}\n```\n\nand it will get back 1,000 bytes of uninitialized memory from the server.\n\nThis is a very serious bug. It's similar in severity to the\n[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process\nmemory by remote attackers.\n\n### Which real-world packages were vulnerable?\n\n#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)\n\n[Mathias Buus](https://github.com/mafintosh) and I\n([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,\n[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow\nanyone on the internet to send a series of messages to a user of `bittorrent-dht` and get\nthem to reveal 20 bytes at a time of uninitialized memory from the node.js process.\n\nHere's\n[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)\nthat fixed it. We released a new fixed version, created a\n[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all\nvulnerable versions on npm so users will get a warning to upgrade to a newer version.\n\n#### [`ws`](https://www.npmjs.com/package/ws)\n\nThat got us wondering if there were other vulnerable packages. Sure enough, within a short\nperiod of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the\nmost popular WebSocket implementation in node.js.\n\nIf certain APIs were called with `Number` parameters instead of `String` or `Buffer` as\nexpected, then uninitialized server memory would be disclosed to the remote peer.\n\nThese were the vulnerable methods:\n\n```js\nsocket.send(number)\nsocket.ping(number)\nsocket.pong(number)\n```\n\nHere's a vulnerable socket server with some echo functionality:\n\n```js\nserver.on('connection', function (socket) {\n socket.on('message', function (message) {\n message = JSON.parse(message)\n if (message.type === 'echo') {\n socket.send(message.data) // send back the user's message\n }\n })\n})\n```\n\n`socket.send(number)` called on the server, will disclose server memory.\n\nHere's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue\nwas fixed, with a more detailed explanation. Props to\n[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the\n[Node Security Project disclosure](https://nodesecurity.io/advisories/67).\n\n### What's the solution?\n\nIt's important that node.js offers a fast way to get memory otherwise performance-critical\napplications would needlessly get a lot slower.\n\nBut we need a better way to *signal our intent* as programmers. **When we want\nuninitialized memory, we should request it explicitly.**\n\nSensitive functionality should not be packed into a developer-friendly API that loosely\naccepts many different types. This type of API encourages the lazy practice of passing\nvariables in without checking the type very carefully.\n\n#### A new API: `Buffer.allocUnsafe(number)`\n\nThe functionality of creating buffers with uninitialized memory should be part of another\nAPI. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that\nfrequently gets user input of all sorts of different types passed into it.\n\n```js\nvar buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!\n\n// Immediately overwrite the uninitialized buffer with data from another buffer\nfor (var i = 0; i < buf.length; i++) {\n buf[i] = otherBuf[i]\n}\n```\n\n### How do we fix node.js core?\n\nWe sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as\n`semver-major`) which defends against one case:\n\n```js\nvar str = 16\nnew Buffer(str, 'utf8')\n```\n\nIn this situation, it's implied that the programmer intended the first argument to be a\nstring, since they passed an encoding as a second argument. Today, node.js will allocate\nuninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not\nwhat the programmer intended.\n\nBut this is only a partial solution, since if the programmer does `new Buffer(variable)`\n(without an `encoding` parameter) there's no way to know what they intended. If `variable`\nis sometimes a number, then uninitialized memory will sometimes be returned.\n\n### What's the real long-term fix?\n\nWe could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when\nwe need uninitialized memory. But that would break 1000s of packages.\n\n~~We believe the best solution is to:~~\n\n~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~\n\n~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~\n\n#### Update\n\nWe now support adding three new APIs:\n\n- `Buffer.from(value)` - convert from any type to a buffer\n- `Buffer.alloc(size)` - create a zero-filled buffer\n- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size\n\nThis solves the core problem that affected `ws` and `bittorrent-dht` which is\n`Buffer(variable)` getting tricked into taking a number argument.\n\nThis way, existing code continues working and the impact on the npm ecosystem will be\nminimal. Over time, npm maintainers can migrate performance-critical code to use\n`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.\n\n### Conclusion\n\nWe think there's a serious design issue with the `Buffer` API as it exists today. It\npromotes insecure software by putting high-risk functionality into a convenient API\nwith friendly \"developer ergonomics\".\n\nThis wasn't merely a theoretical exercise because we found the issue in some of the\nmost popular npm packages.\n\nFortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of\n`buffer`.\n\n```js\nvar Buffer = require('safe-buffer').Buffer\n```\n\nEventually, we hope that node.js core can switch to this new, safer behavior. We believe\nthe impact on the ecosystem would be minimal since it's not a breaking change.\nWell-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while\nolder, insecure packages would magically become safe from this attack vector.\n\n## links\n\n- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)\n- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)\n- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)\n\n## credit\n\nThe original issues in `bittorrent-dht`\n([disclosure](https://nodesecurity.io/advisories/68)) and\n`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by\n[Mathias Buus](https://github.com/mafintosh) and\n[Feross Aboukhadijeh](http://feross.org/).\n\nThanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues\nand for his work running the [Node Security Project](https://nodesecurity.io/).\n\nThanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and\nauditing the code.\n\n## license\n\nMIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)\n# ajv-errors\nCustom error messages in JSON-Schema for Ajv validator\n\n[](https://travis-ci.org/epoberezkin/ajv-errors)\n[](http://badge.fury.io/js/ajv-errors)\n[](https://coveralls.io/github/epoberezkin/ajv-errors?branch=master)\n[](https://gitter.im/ajv-validator/ajv)\n\n## Contents\n\n- [Install](#install)\n- [Usage](#usage)\n - [Single message](#single-message)\n - [Messages for keywords](#messages-for-keywords)\n - [Messages for properties and items](#messages-for-properties-and-items)\n - [Default message](#default-message)\n- [Templates](#templates)\n- [Options](#options)\n- [License](#license)\n\n## Install\n\n```\nnpm install ajv-errors\n```\n\n## Usage\n\nAdd the keyword `errorMessages` to Ajv instance:\n\n```javascript\nvar Ajv = require('ajv');\nvar ajv = new Ajv({allErrors: true, jsonPointers: true});\n// Ajv options allErrors and jsonPointers are required\nrequire('ajv-errors')(ajv /*, {singleError: true} */);\n```\n\nSee [Options](#options) below.\n\n### Single message\n\nReplace all errors in the current schema and subschemas with a single message:\n\n```javascript\nvar schema = {\n type: 'object',\n required: ['foo'],\n properties: {\n foo: { type: 'integer' }\n },\n additionalProperties: false,\n errorMessage: 'should be an object with an integer property foo only'\n};\n\nvar validate = ajv.compile(schema);\nconsole.log(validate({foo: 'a', bar: 2})); // false\nconsole.log(validate.errors); // processed errors\n```\n\nProcessed errors:\n\n```javascript\n[\n {\n keyword: 'errorMessage',\n message: 'should be an object with an integer property foo only',\n // ...\n params: {\n errors: [\n { keyword: 'additionalProperties', dataPath: '' /* , ... */ },\n { keyword: 'type', dataPath: '.foo' /* , ... */ }\n ]\n }\n }\n]\n```\n\n### Messages for keywords\n\nReplace errors for certain keywords in the current schema only:\n\n```javascript\nvar schema = {\n type: 'object',\n required: ['foo'],\n properties: {\n foo: { type: 'integer' }\n },\n additionalProperties: false,\n errorMessage: {\n type: 'should be an object', // will not replace internal \"type\" error for the property \"foo\"\n required: 'should have property foo',\n additionalProperties: 'should not have properties other than foo'\n }\n};\n\nvar validate = ajv.compile(schema);\nconsole.log(validate({foo: 'a', bar: 2})); // false\nconsole.log(validate.errors); // processed errors\n```\n\nProcessed errors:\n\n```javascript\n[\n {\n // original error\n keyword: type,\n dataPath: '/foo',\n // ...\n message: 'should be integer'\n },\n {\n // generated error\n keyword: 'errorMessage',\n message: 'should not have properties other than foo',\n // ...\n params: {\n errors: [\n { keyword: 'additionalProperties' /* , ... */ }\n ]\n },\n }\n]\n```\n\nFor keywords \"required\" and \"dependencies\" it is possible to specify different messages for different properties:\n\n```javascript\nvar schema = {\n type: 'object',\n required: ['foo', 'bar'],\n properties: {\n foo: { type: 'integer' },\n bar: { type: 'string' }\n },\n errorMessage: {\n type: 'should be an object', // will not replace internal \"type\" error for the property \"foo\"\n required: {\n foo: 'should have an integer property \"foo\"',\n bar: 'should have a string property \"bar\"'\n }\n }\n};\n```\n\n### Messages for properties and items\n\nReplace errors for properties / items (and deeper), regardless where in schema they were created:\n\n```javascript\nvar schema = {\n type: 'object',\n required: ['foo', 'bar'],\n allOf: [{\n properties: {\n foo: { type: 'integer', minimum: 2 },\n bar: { type: 'string', minLength: 2 }\n },\n additionalProperties: false\n }],\n errorMessage: {\n properties: {\n foo: 'data.foo should be integer >= 2',\n bar: 'data.bar should be string with length >= 2'\n }\n }\n};\n\nvar validate = ajv.compile(schema);\nconsole.log(validate({foo: 1, bar: 'a'})); // false\nconsole.log(validate.errors); // processed errors\n```\n\nProcessed errors:\n\n```javascript\n[\n {\n keyword: 'errorMessage',\n message: 'data.foo should be integer >= 2',\n dataPath: '/foo',\n // ...\n params: {\n errors: [\n { keyword: 'minimum' /* , ... */ }\n ]\n },\n },\n {\n keyword: 'errorMessage',\n message: 'data.bar should be string with length >= 2',\n dataPath: '/bar',\n // ...\n params: {\n errors: [\n { keyword: 'minLength' /* , ... */ }\n ]\n },\n }\n]\n```\n\n### Default message\n\nWhen the value of keyword `errorMessage` is an object you can specify a message that will be used if any error appears that is not specified by keywords/properties/items:\n\n```javascript\nvar schema = {\n type: 'object',\n required: ['foo', 'bar'],\n allOf: [{\n properties: {\n foo: { type: 'integer', minimum: 2 },\n bar: { type: 'string', minLength: 2 }\n },\n additionalProperties: false\n }],\n errorMessage: {\n type: 'data should be an object',\n properties: {\n foo: 'data.foo should be integer >= 2',\n bar: 'data.bar should be string with length >= 2'\n },\n _: 'data should have properties \"foo\" and \"bar\" only'\n }\n};\n\nvar validate = ajv.compile(schema);\nconsole.log(validate({})); // false\nconsole.log(validate.errors); // processed errors\n```\n\nProcessed errors:\n\n```javascript\n[\n {\n keyword: 'errorMessage',\n message: 'data should be an object with properties \"foo\" and \"bar\" only',\n dataPath: '',\n // ...\n params: {\n errors: [\n { keyword: 'required' /* , ... */ },\n { keyword: 'required' /* , ... */ }\n ]\n },\n }\n]\n```\n\nThe message in property `_` of `errorMessage` replaces the same errors that would have been replaced if `errorMessage` were a string.\n\n## Templates\n\nCustom error messages used in `errorMessage` keyword can be templates using [JSON-pointers](https://tools.ietf.org/html/rfc6901) or [relative JSON-pointers](http://tools.ietf.org/html/draft-luff-relative-json-pointer-00) to data being validated, in which case the value will be interpolated. Also see [examples](https://gist.github.com/geraintluff/5911303) of relative JSON-pointers.\n\nThe syntax to interpolate a value is `${<pointer>}`.\n\nThe values used in messages will be JSON-stringified:\n- to differentiate between `false` and `\"false\"`, etc.\n- to support structured values.\n\nExample:\n\n```json\n{\n \"type\": \"object\",\n \"properties\": {\n \"size\": {\n \"type\": \"number\",\n \"minimum\": 4\n }\n },\n \"errorMessage\": {\n \"properties\": {\n \"size\": \"size should be a number bigger or equal to 4, current value is ${/size}\"\n }\n }\n}\n```\n\n## Options\n\nDefaults:\n\n```javascript\n{\n keepErrors: false,\n singleError: false\n}\n```\n\n- _keepErrors_: keep original errors. Default is to remove matched errors (they will still be available in `params.errors` property of generated error). If an error was matched and included in the error generated by `errorMessage` keyword it will have property `emUsed: true`.\n- _singleError_: create one error for all keywords used in `errorMessage` keyword (error messages defined for properties and items are not merged because they have different dataPaths). Multiple error messages are concatenated. Option values:\n - `false` (default): create multiple errors, one for each message\n - `true`: create single error, messages are concatenated using `\"; \"`\n - non-empty string: this string is used as a separator to concatenate messages\n\n## Supporters\n\n[<img src=\"https://media.licdn.com/mpr/mpr/shrinknp_400_400/AAEAAQAAAAAAAAwEAAAAJDg1YzBlYzFjLTA3YWYtNGEzOS1iMTdjLTQ0MTU1NWZjOGM0ZQ.jpg\" width=\"48\" height=\"48\">](https://www.linkedin.com/in/rogerkepler/) [Roger Kepler](https://www.linkedin.com/in/rogerkepler/)\n\n## License\n\n[MIT](https://github.com/epoberezkin/ajv-errors/blob/master/LICENSE)\n# multicast-dns\n\nLow level multicast-dns implementation in pure javascript\n\n```\nnpm install multicast-dns\n```\n\n[](http://travis-ci.org/mafintosh/multicast-dns)\n\n## Usage\n\n``` js\nvar mdns = require('multicast-dns')()\n\nmdns.on('response', function(response) {\n console.log('got a response packet:', response)\n})\n\nmdns.on('query', function(query) {\n console.log('got a query packet:', query)\n})\n\n// lets query for an A record for 'brunhilde.local'\nmdns.query({\n questions:[{\n name: 'brunhilde.local',\n type: 'A'\n }]\n})\n```\n\nRunning the above (change `brunhilde.local` to `your-own-hostname.local`) will print an echo of the query packet first\n\n``` js\ngot a query packet: { type: 'query',\n questions: [ { name: 'brunhilde.local', type: 'A', class: 1 } ],\n answers: [],\n authorities: [],\n additionals: [] }\n```\n\nAnd then a response packet\n\n``` js\ngot a response packet: { type: 'response',\n questions: [],\n answers:\n [ { name: 'brunhilde.local',\n type: 'A',\n class: 1,\n ttl: 120,\n flush: true,\n data: '192.168.1.5' } ],\n authorities: [],\n additionals:\n [ { name: 'brunhilde.local',\n type: 'A',\n class: 1,\n ttl: 120,\n flush: true,\n data: '192.168.1.5' },\n { name: 'brunhilde.local',\n type: 'AAAA',\n class: 1,\n ttl: 120,\n flush: true,\n data: 'fe80::5ef9:38ff:fe8c:ceaa' } ] }\n```\n\n# CLI\n\n```\nnpm install -g multicast-dns\n```\n\n```\nmulticast-dns brunhilde.local\n> 192.168.1.1\n```\n\n# API\n\nA packet has the following format\n\n``` js\n{\n questions: [{\n name:'brunhilde.local',\n type:'A'\n }],\n answers: [{\n name:'brunhilde.local',\n type:'A',\n ttl:seconds,\n data:(record type specific data)\n }],\n additionals: [\n (same format as answers)\n ],\n authorities: [\n (same format as answers)\n ]\n}\n```\n\nCurrently data from `SRV`, `A`, `PTR`, `TXT`, `AAAA` and `HINFO` records is passed\n\n#### `mdns = multicastdns([options])`\n\nCreates a new `mdns` instance. Options can contain the following\n\n``` js\n{\n multicast: true // use udp multicasting\n interface: '192.168.0.2' // explicitly specify a network interface. defaults to all\n port: 5353, // set the udp port\n ip: '224.0.0.251', // set the udp ip\n ttl: 255, // set the multicast ttl\n loopback: true, // receive your own packets\n reuseAddr: true // set the reuseAddr option when creating the socket (requires node >=0.11.13)\n}\n```\n\n#### `mdns.on('query', (packet, rinfo))`\n\nEmitted when a query packet is received.\n\n``` js\nmdns.on('query', function(query) {\n if (query.questions[0] && query.questions[0].name === 'brunhilde.local') {\n mdns.respond(someResponse) // see below\n }\n})\n```\n\n#### `mdns.on('response', (packet, rinfo))`\n\nEmitted when a response packet is received.\n\nThe response might not be a response to a query you send as this\nis the result of someone multicasting a response.\n\n#### `mdns.query(packet, [cb])`\n\nSend a dns query. The callback will be called when the packet was sent.\n\nThe following shorthands are equivalent\n\n``` js\nmdns.query('brunhilde.local', 'A')\nmdns.query([{name:'brunhilde.local', type:'A'}])\nmdns.query({\n questions: [{name:'brunhilde.local', type:'A'}]\n})\n```\n\n#### `mdns.respond(packet, [cb])`\n\nSend a dns response. The callback will be called when the packet was sent.\n\n``` js\n// reply with a SRV and a A record as an answer\nmdns.respond({\n answers: [{\n name: 'my-service',\n type: 'SRV',\n data: {\n port:9999,\n weigth: 0,\n priority: 10,\n target: 'my-service.example.com'\n }\n }, {\n name: 'brunhilde.local',\n type: 'A',\n ttl: 300,\n data: '192.168.1.5'\n }]\n})\n```\n\nThe following shorthands are equivalent\n\n``` js\nmdns.respond([{name:'brunhilde.local', type:'A', data:'192.158.1.5'}])\nmdns.respond({\n answers: [{name:'brunhilde.local', type:'A', data:'192.158.1.5'}]\n})\n```\n\n#### `mdns.destroy()`\n\nDestroy the mdns instance. Closes the udp socket.\n\n# Development\n\nTo start hacking on this module you can use this example to get started\n\n```\ngit clone git://github.com/mafintosh/multicast-dns.git\nnpm install\nnode example.js\nnode cli.js $(hostname).local\n```\n\n## License\n\nMIT\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n</div>\n\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n\n# webpack-dev-middleware\n\nAn express-style development middleware for use with [webpack](https://webpack.js.org)\nbundles and allows for serving of the files emitted from webpack.\nThis should be used for **development only**.\n\nSome of the benefits of using this middleware include:\n\n- No files are written to disk, rather it handles files in memory\n- If files changed in watch mode, the middleware delays requests until compiling\n has completed.\n- Supports hot module reload (HMR).\n\n## Requirements\n\nThis module requires a minimum of Node v6.9.0 and Webpack v4.0.0, and must be used with a\nserver that accepts express-style middleware.\n\n## Getting Started\n\nFirst thing's first, install the module:\n\n```console\nnpm install webpack-dev-middleware --save-dev\n```\n\n_Note: We do not recommend installing this module globally._\n\n## Usage\n\n```js\nconst webpack = require('webpack');\nconst middleware = require('webpack-dev-middleware');\nconst compiler = webpack({\n // webpack options\n});\nconst express = require('express');\nconst app = express();\n\napp.use(\n middleware(compiler, {\n // webpack-dev-middleware options\n })\n);\n\napp.listen(3000, () => console.log('Example app listening on port 3000!'));\n```\n\n## Options\n\nThe middleware accepts an `options` Object. The following is a property reference\nfor the Object.\n\n_Note: The `publicPath` property is required, whereas all other options are optional_\n\n### methods\n\nType: `Array` \nDefault: `[ 'GET' ]`\n\nThis property allows a user to pass the list of HTTP request methods accepted by the server.\n\n### headers\n\nType: `Object` \nDefault: `undefined`\n\nThis property allows a user to pass custom HTTP headers on each request. eg.\n`{ \"X-Custom-Header\": \"yes\" }`\n\n### index\n\nType: `String` \nDefault: `undefined`\n\n\"index.html\",\n// The index path for web server, defaults to \"index.html\".\n// If falsy (but not undefined), the server will not respond to requests to the root URL.\n\n### lazy\n\nType: `Boolean` \nDefault: `undefined`\n\nThis option instructs the module to operate in 'lazy' mode, meaning that it won't\nrecompile when files change, but rather on each request.\n\n### logger\n\nType: `Object` \nDefault: [`webpack-log`](https://github.com/webpack-contrib/webpack-log/blob/master/index.js)\n\nIn the rare event that a user would like to provide a custom logging interface,\nthis property allows the user to assign one. The module leverages\n[`webpack-log`](https://github.com/webpack-contrib/webpack-log#readme)\nfor creating the [`loglevelnext`](https://github.com/shellscape/loglevelnext#readme)\nlogging management by default. Any custom logger must adhere to the same\nexports for compatibility. Specifically, all custom loggers must have the\nfollowing exported methods at a minimum:\n\n- `log.trace`\n- `log.debug`\n- `log.info`\n- `log.warn`\n- `log.error`\n\nPlease see the documentation for `loglevel` for more information.\n\n### logLevel\n\nType: `String` \nDefault: `'info'`\n\nThis property defines the level of messages that the module will log. Valid levels\ninclude:\n\n- `trace`\n- `debug`\n- `info`\n- `warn`\n- `error`\n- `silent`\n\nSetting a log level means that all other levels below it will be visible in the\nconsole. Setting `logLevel: 'silent'` will hide all console output. The module\nleverages [`webpack-log`](https://github.com/webpack-contrib/webpack-log#readme)\nfor logging management, and more information can be found on its page.\n\n### logTime\n\nType: `Boolean` \nDefault: `false`\n\nIf `true` the log output of the module will be prefixed by a timestamp in the\n`HH:mm:ss` format.\n\n### mimeTypes\n\nType: `Object` \nDefault: `null`\n\nThis property allows a user to register custom mime types or extension mappings.\neg. `mimeTypes: { 'text/html': [ 'phtml' ] }`.\n\nBy default node-mime will throw an error if you try to map a type to an extension\nthat is already assigned to another type. Passing `force: true` will suppress this behavior\n(overriding any previous mapping).\neg. `mimeTypes: { typeMap: { 'text/html': [ 'phtml' ] } }, force: true }`.\n\nPlease see the documentation for\n[`node-mime`](https://github.com/broofa/node-mime#mimedefinetypemap-force--false) for more information.\n\n### publicPath\n\nType: `String` \n_Required_\n\nThe public path that the middleware is bound to. _Best Practice: use the same\n`publicPath` defined in your webpack config. For more information about\n`publicPath`, please see\n[the webpack documentation](https://webpack.js.org/guides/public-path)._\n\n### reporter\n\nType: `Object` \nDefault: `undefined`\n\nAllows users to provide a custom reporter to handle logging within the module.\nPlease see the [default reporter](/lib/reporter.js)\nfor an example.\n\n### serverSideRender\n\nType: `Boolean` \nDefault: `undefined`\n\nInstructs the module to enable or disable the server-side rendering mode. Please\nsee [Server-Side Rendering](#server-side-rendering) for more information.\n\n### stats\n\nType: `Object` \nDefault: `{ context: process.cwd() }`\n\nOptions for formatting statistics displayed during and after compile. For more\ninformation and property details, please see the\n[webpack documentation](https://webpack.js.org/configuration/stats/#stats).\n\n### watchOptions\n\nType: `Object` \nDefault: `{ aggregateTimeout: 200 }`\n\nThe module accepts an `Object` containing options for file watching, which is\npassed directly to the compiler provided. For more information on watch options\nplease see the [webpack documentation](https://webpack.js.org/configuration/watch/#watchoptions)\n\n### writeToDisk\n\nType: `Boolean|Function` \nDefault: `false`\n\nIf `true`, the option will instruct the module to write files to the configured\nlocation on disk as specified in your `webpack` config file. _Setting\n`writeToDisk: true` won't change the behavior of the `webpack-dev-middleware`,\nand bundle files accessed through the browser will still be served from memory._\nThis option provides the same capabilities as the\n[`WriteFilePlugin`](https://github.com/gajus/write-file-webpack-plugin/pulls).\n\nThis option also accepts a `Function` value, which can be used to filter which\nfiles are written to disk. The function follows the same premise as\n[`Array#filter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter)\nin which a return value of `false` _will not_ write the file, and a return value\nof `true` _will_ write the file to disk. eg.\n\n```js\n{\n writeToDisk: (filePath) => {\n return /superman\\.css$/.test(filePath);\n };\n}\n```\n\n### fs\n\nType: `Object` \nDefault: `MemoryFileSystem`\n\nSet the default file system which will be used by webpack as primary destination of generated files. Default is set to webpack's default file system: [memory-fs](https://github.com/webpack/memory-fs). This option isn't affected by the [writeToDisk](#writeToDisk) option.\n\n**Note:** As of 3.5.x version of the middleware you have to provide `.join()` method to the `fs` instance manually. This can be done simply by using `path.join`:\n\n```js\nfs.join = path.join; // no need to bind\n```\n\n## API\n\n`webpack-dev-middleware` also provides convenience methods that can be use to\ninteract with the middleware at runtime:\n\n### `close(callback)`\n\nInstructs a webpack-dev-middleware instance to stop watching for file changes.\n\n### Parameters\n\n#### callback\n\nType: `Function`\n\nA function executed once the middleware has stopped watching.\n\n### `invalidate()`\n\nInstructs a webpack-dev-middleware instance to recompile the bundle.\ne.g. after a change to the configuration.\n\n```js\nconst webpack = require('webpack');\nconst compiler = webpack({ ... });\nconst middleware = require('webpack-dev-middleware');\nconst instance = middleware(compiler);\n\napp.use(instance);\n\nsetTimeout(() => {\n // After a short delay the configuration is changed and a banner plugin is added\n // to the config\n compiler.apply(new webpack.BannerPlugin('A new banner'));\n\n // Recompile the bundle with the banner plugin:\n instance.invalidate();\n}, 1000);\n```\n\n### `waitUntilValid(callback)`\n\nExecutes a callback function when the compiler bundle is valid, typically after\ncompilation.\n\n### Parameters\n\n#### callback\n\nType: `Function`\n\nA function executed when the bundle becomes valid. If the bundle is\nvalid at the time of calling, the callback is executed immediately.\n\n```js\nconst webpack = require('webpack');\nconst compiler = webpack({ ... });\nconst middleware = require('webpack-dev-middleware');\nconst instance = middleware(compiler);\n\napp.use(instance);\n\ninstance.waitUntilValid(() => {\n console.log('Package is in a valid state');\n});\n```\n\n## Known Issues\n\n### Multiple Successive Builds\n\nWatching (by means of `lazy: false`) will frequently cause multiple compilations\nas the bundle changes during compilation. This is due in part to cross-platform\ndifferences in file watchers, so that webpack doesn't loose file changes when\nwatched files change rapidly. If you run into this situation, please make use of\nthe [`TimeFixPlugin`](https://github.com/egoist/time-fix-plugin).\n\n## Server-Side Rendering\n\n_Note: this feature is experimental and may be removed or changed completely in the future._\n\nIn order to develop an app using server-side rendering, we need access to the\n[`stats`](https://github.com/webpack/docs/wiki/node.js-api#stats), which is\ngenerated with each build.\n\nWith server-side rendering enabled, `webpack-dev-middleware` sets the `stat` to\n`res.locals.webpackStats` and the memory filesystem to `res.locals.fs` before invoking the next middleware, allowing a\ndeveloper to render the page body and manage the response to clients.\n\n_Note: Requests for bundle files will still be handled by\n`webpack-dev-middleware` and all requests will be pending until the build\nprocess is finished with server-side rendering enabled._\n\nExample Implementation:\n\n```js\nconst webpack = require('webpack');\nconst compiler = webpack({\n // webpack options\n});\nconst isObject = require('is-object');\nconst middleware = require('webpack-dev-middleware');\n\n// This function makes server rendering of asset references consistent with different webpack chunk/entry configurations\nfunction normalizeAssets(assets) {\n if (isObject(assets)) {\n return Object.values(assets);\n }\n\n return Array.isArray(assets) ? assets : [assets];\n}\n\napp.use(middleware(compiler, { serverSideRender: true }));\n\n// The following middleware would not be invoked until the latest build is finished.\napp.use((req, res) => {\n const assetsByChunkName = res.locals.webpackStats.toJson().assetsByChunkName;\n const fs = res.locals.fs;\n const outputPath = res.locals.webpackStats.toJson().outputPath;\n\n // then use `assetsByChunkName` for server-sider rendering\n // For example, if you have only one main chunk:\n res.send(`\n<html>\n <head>\n <title>My App</title>\n <style>\n ${normalizeAssets(assetsByChunkName.main)\n .filter((path) => path.endsWith('.css'))\n .map((path) => fs.readFileSync(outputPath + '/' + path))\n .join('\\n')}\n </style>\n </head>\n <body>\n <div id=\"root\"></div>\n ${normalizeAssets(assetsByChunkName.main)\n .filter((path) => path.endsWith('.js'))\n .map((path) => `<script src=\"${path}\"></script>`)\n .join('\\n')}\n </body>\n</html>\n `);\n});\n```\n\n## Support\n\nWe do our best to keep Issues in the repository focused on bugs, features, and\nneeded modifications to the code for the module. Because of that, we ask users\nwith general support, \"how-to\", or \"why isn't this working\" questions to try one\nof the other support channels that are available.\n\nYour first-stop-shop for support for webpack-dev-server should by the excellent\n[documentation][docs-url] for the module. If you see an opportunity for improvement\nof those docs, please head over to the [webpack.js.org repo][wjo-url] and open a\npull request.\n\nFrom there, we encourage users to visit the [webpack Gitter chat][chat-url] and\ntalk to the fine folks there. If your quest for answers comes up dry in chat,\nhead over to [StackOverflow][stack-url] and do a quick search or open a new\nquestion. Remember; It's always much easier to answer questions that include your\n`webpack.config.js` and relevant files!\n\nIf you're twitter-savvy you can tweet [#webpack][hash-url] with your question\nand someone should be able to reach out and lend a hand.\n\nIf you have discovered a :bug:, have a feature suggestion, of would like to see\na modification, please feel free to create an issue on Github. _Note: The issue\ntemplate isn't optional, so please be sure not to remove it, and please fill it\nout completely._\n\n## Contributing\n\nPlease take a moment to read our contributing guidelines if you haven't yet done so.\n\n[CONTRIBUTING.md](CONTRIBUTING.md)\n\n## License\n\n[MIT](./LICENSE)\n\n[npm]: https://img.shields.io/npm/v/webpack-dev-middleware.svg\n[npm-url]: https://npmjs.com/package/webpack-dev-middleware\n[node]: https://img.shields.io/node/v/webpack-dev-middleware.svg\n[node-url]: https://nodejs.org\n[deps]: https://david-dm.org/webpack/webpack-dev-middleware.svg\n[deps-url]: https://david-dm.org/webpack/webpack-dev-middleware\n[tests]: http://img.shields.io/travis/webpack/webpack-dev-middleware.svg\n[tests-url]: https://travis-ci.org/webpack/webpack-dev-middleware\n[cover]: https://codecov.io/gh/webpack/webpack-dev-middleware/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack/webpack-dev-middleware\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\n[docs-url]: https://webpack.js.org/guides/development/#using-webpack-dev-middleware\n[hash-url]: https://twitter.com/search?q=webpack\n[middleware-url]: https://github.com/webpack/webpack-dev-middleware\n[stack-url]: https://stackoverflow.com/questions/tagged/webpack-dev-middleware\n[uglify-url]: https://github.com/webpack-contrib/uglifyjs-webpack-plugin\n[wjo-url]: https://github.com/webpack/webpack.js.org\n# to-regex [](https://www.npmjs.com/package/to-regex) [](https://npmjs.org/package/to-regex) [](https://npmjs.org/package/to-regex) [](https://travis-ci.org/jonschlinkert/to-regex)\n\n> Generate a regex from a string or array of strings.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n- [Install](#install)\n- [Usage](#usage)\n- [Options](#options)\n * [options.contains](#optionscontains)\n * [options.negate](#optionsnegate)\n * [options.nocase](#optionsnocase)\n * [options.flags](#optionsflags)\n * [options.cache](#optionscache)\n * [options.safe](#optionssafe)\n- [About](#about)\n * [Related projects](#related-projects)\n * [Author](#author)\n * [License](#license)\n\n_(TOC generated by [verb](https://github.com/verbose/verb) using [markdown-toc](https://github.com/jonschlinkert/markdown-toc))_\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save to-regex\n```\n\n## Usage\n\n```js\nvar toRegex = require('to-regex');\n\nconsole.log(toRegex('foo'));\n//=> /^(?:foo)$/\n\nconsole.log(toRegex('foo', {negate: true}));\n//=> /^(?:(?:(?!^(?:foo)$).)*)$/\n\nconsole.log(toRegex('foo', {contains: true}));\n//=> /(?:foo)/\n\nconsole.log(toRegex(['foo', 'bar'], {negate: true}));\n//=> /^(?:(?:(?!^(?:(?:foo)|(?:bar))$).)*)$/\n\nconsole.log(toRegex(['foo', 'bar'], {negate: true, contains: true}));\n//=> /^(?:(?:(?!(?:(?:foo)|(?:bar))).)*)$/\n```\n\n## Options\n\n### options.contains\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\nGenerate a regex that will match any string that _contains_ the given pattern. By default, regex is strict will only return true for exact matches.\n\n```js\nvar toRegex = require('to-regex');\nconsole.log(toRegex('foo', {contains: true}));\n//=> /(?:foo)/\n```\n\n### options.negate\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\nCreate a regex that will match everything except the given pattern.\n\n```js\nvar toRegex = require('to-regex');\nconsole.log(toRegex('foo', {negate: true}));\n//=> /^(?:(?:(?!^(?:foo)$).)*)$/\n```\n\n### options.nocase\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\nAdds the `i` flag, to enable case-insensitive matching.\n\n```js\nvar toRegex = require('to-regex');\nconsole.log(toRegex('foo', {nocase: true}));\n//=> /^(?:foo)$/i\n```\n\nAlternatively you can pass the flags you want directly on [options.flags](#options.flags).\n\n### options.flags\n\n**Type**: `String`\n\n**Default**: `undefined`\n\nDefine the flags you want to use on the generated regex.\n\n```js\nvar toRegex = require('to-regex');\nconsole.log(toRegex('foo', {flags: 'gm'}));\n//=> /^(?:foo)$/gm\nconsole.log(toRegex('foo', {flags: 'gmi', nocase: true})); //<= handles redundancy\n//=> /^(?:foo)$/gmi\n```\n\n### options.cache\n\n**Type**: `Boolean`\n\n**Default**: `true`\n\nGenerated regex is cached based on the provided string and options. As a result, runtime compilation only happens once per pattern (as long as options are also the same), which can result in dramatic speed improvements.\n\nThis also helps with debugging, since adding options and pattern are added to the generated regex.\n\n**Disable caching**\n\n```js\ntoRegex('foo', {cache: false});\n```\n\n### options.safe\n\n**Type**: `Boolean`\n\n**Default**: `undefined`\n\nCheck the generated regular expression with [safe-regex](https://github.com/substack/safe-regex) and throw an error if the regex is potentially unsafe.\n\n**Examples**\n\n```js\nconsole.log(toRegex('(x+x+)+y'));\n//=> /^(?:(x+x+)+y)$/\n\n// The following would throw an error\ntoRegex('(x+x+)+y', {safe: true});\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [has-glob](https://www.npmjs.com/package/has-glob): Returns `true` if an array has a glob pattern. | [homepage](https://github.com/jonschlinkert/has-glob \"Returns `true` if an array has a glob pattern.\")\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [path-regex](https://www.npmjs.com/package/path-regex): Regular expression for matching the parts of a file path. | [homepage](https://github.com/regexps/path-regex \"Regular expression for matching the parts of a file path.\")\n* [to-regex-range](https://www.npmjs.com/package/to-regex-range): Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than… [more](https://github.com/micromatch/to-regex-range) | [homepage](https://github.com/micromatch/to-regex-range \"Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.\")\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 24, 2018._\n# y18n\n\n[![Build Status][travis-image]][travis-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n[![NPM version][npm-image]][npm-url]\n[![js-standard-style][standard-image]][standard-url]\n\nThe bare-bones internationalization library used by yargs.\n\nInspired by [i18n](https://www.npmjs.com/package/i18n).\n\n## Examples\n\n_simple string translation:_\n\n```js\nvar __ = require('y18n').__\n\nconsole.log(__('my awesome string %s', 'foo'))\n```\n\noutput:\n\n`my awesome string foo`\n\n_pluralization support:_\n\n```js\nvar __n = require('y18n').__n\n\nconsole.log(__n('one fish %s', '%d fishes %s', 2, 'foo'))\n```\n\noutput:\n\n`2 fishes foo`\n\n## JSON Language Files\n\nThe JSON language files should be stored in a `./locales` folder.\nFile names correspond to locales, e.g., `en.json`, `pirate.json`.\n\nWhen strings are observed for the first time they will be\nadded to the JSON file corresponding to the current locale.\n\n## Methods\n\n### require('y18n')(config)\n\nCreate an instance of y18n with the config provided, options include:\n\n* `directory`: the locale directory, default `./locales`.\n* `updateFiles`: should newly observed strings be updated in file, default `true`.\n* `locale`: what locale should be used.\n* `fallbackToLanguage`: should fallback to a language-only file (e.g. `en.json`)\n be allowed if a file matching the locale does not exist (e.g. `en_US.json`),\n default `true`.\n\n### y18n.\\_\\_(str, arg, arg, arg)\n\nPrint a localized string, `%s` will be replaced with `arg`s.\n\n### y18n.\\_\\_n(singularString, pluralString, count, arg, arg, arg)\n\nPrint a localized string with appropriate pluralization. If `%d` is provided\nin the string, the `count` will replace this placeholder.\n\n### y18n.setLocale(str)\n\nSet the current locale being used.\n\n### y18n.getLocale()\n\nWhat locale is currently being used?\n\n### y18n.updateLocale(obj)\n\nUpdate the current locale with the key value pairs in `obj`.\n\n## License\n\nISC\n\n[travis-url]: https://travis-ci.org/yargs/y18n\n[travis-image]: https://img.shields.io/travis/yargs/y18n.svg\n[coveralls-url]: https://coveralls.io/github/yargs/y18n\n[coveralls-image]: https://img.shields.io/coveralls/yargs/y18n.svg\n[npm-url]: https://npmjs.org/package/y18n\n[npm-image]: https://img.shields.io/npm/v/y18n.svg\n[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg\n[standard-url]: https://github.com/feross/standard\nThis folder contains internal parts of `core-js` like helpers.\n# block-stream\n\nA stream of blocks.\n\nWrite data into it, and it'll output data in buffer blocks the size you\nspecify, padding with zeroes if necessary.\n\n```javascript\nvar block = new BlockStream(512)\nfs.createReadStream(\"some-file\").pipe(block)\nblock.pipe(fs.createWriteStream(\"block-file\"))\n```\n\nWhen `.end()` or `.flush()` is called, it'll pad the block with zeroes.\n# util [](https://travis-ci.org/defunctzombie/node-util)\n\n> Node.js's [util][util] module for all engines.\n\nThis implements the Node.js [`util`][util] module for environments that do not have it, like browsers.\n\n## Install\n\nYou usually do not have to install `util` yourself. If your code runs in Node.js, `util` is built in. If your code runs in the browser, bundlers like [browserify](https://github.com/browserify/browserify) or [webpack](https://github.com/webpack/webpack) also include the `util` module.\n\nBut if none of those apply, with npm do:\n\n```shell\nnpm install util\n```\n\n## Usage\n\n```javascript\nvar util = require('util')\nvar EventEmitter = require('events')\n\nfunction MyClass() { EventEmitter.call(this) }\nutil.inherits(MyClass, EventEmitter)\n```\n\n## Browser Support\n\nThe `util` module uses ES5 features. If you need to support very old browsers like IE8, use a shim like [`es5-shim`](https://www.npmjs.com/package/es5-shim). You need both the shim and the sham versions of `es5-shim`.\n\nTo use `util.promisify` and `util.callbackify`, Promises must already be available. If you need to support browsers like IE11 that do not support Promises, use a shim. [es6-promise](https://github.com/stefanpenner/es6-promise) is a popular one but there are many others available on npm.\n\n## API\n\nSee the [Node.js util docs][util]. `util` currently supports the Node 8 LTS API. However, some of the methods are outdated. The `inspect` and `format` methods included in this module are a lot more simple and barebones than the ones in Node.js.\n\n## Contributing\n\nPRs are very welcome! The main way to contribute to `util` is by porting features, bugfixes and tests from Node.js. Ideally, code contributions to this module are copy-pasted from Node.js and transpiled to ES5, rather than reimplemented from scratch. Matching the Node.js code as closely as possible makes maintenance simpler when new changes land in Node.js.\nThis module intends to provide exactly the same API as Node.js, so features that are not available in the core `util` module will not be accepted. Feature requests should instead be directed at [nodejs/node](https://github.com/nodejs/node) and will be added to this module once they are implemented in Node.js.\n\nIf there is a difference in behaviour between Node.js's `util` module and this module, please open an issue!\n\n## License\n\n[MIT](./LICENSE)\n\n[util]: https://nodejs.org/docs/latest-v8.x/api/util.html\n# expand-tilde [](https://www.npmjs.com/package/expand-tilde) [](https://npmjs.org/package/expand-tilde) [](https://travis-ci.org/jonschlinkert/expand-tilde)\n\n> Bash-like tilde expansion for node.js. Expands a leading tilde in a file path to the user home directory, or `~+` to the cwd.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save expand-tilde\n```\n\n## Usage\n\nSee the [Bash documentation for Tilde Expansion](https://www.gnu.org/software/bash/manual/html_node/Tilde-Expansion.html).\n\n```js\nvar expandTilde = require('expand-tilde');\n\nexpandTilde('~')\n//=> '/Users/jonschlinkert'\n\nexpandTilde('~+')\n//=> process.cwd()\n```\n\n## Run tests\n\nInstall dev dependencies:\n\n```bash\nnpm i -d && npm test\n```\n\n## About\n\n### Related projects\n\n* [braces](https://www.npmjs.com/package/braces): Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces \"Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces specification, without sacrificing speed.\")\n* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets \"Expand POSIX bracket expressions (character classes) in glob patterns.\")\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on December 08, 2016._\n# pumpify\n\nCombine an array of streams into a single duplex stream using [pump](https://github.com/mafintosh/pump) and [duplexify](https://github.com/mafintosh/duplexify).\nIf one of the streams closes/errors all streams in the pipeline will be destroyed.\n\n```\nnpm install pumpify\n```\n\n[](http://travis-ci.org/mafintosh/pumpify)\n\n## Usage\n\nPass the streams you want to pipe together to pumpify `pipeline = pumpify(s1, s2, s3, ...)`.\n`pipeline` is a duplex stream that writes to the first streams and reads from the last one.\nStreams are piped together using [pump](https://github.com/mafintosh/pump) so if one of them closes\nall streams will be destroyed.\n\n``` js\nvar pumpify = require('pumpify')\nvar tar = require('tar-fs')\nvar zlib = require('zlib')\nvar fs = require('fs')\n\nvar untar = pumpify(zlib.createGunzip(), tar.extract('output-folder'))\n// you can also pass an array instead\n// var untar = pumpify([zlib.createGunzip(), tar.extract('output-folder')])\n\nfs.createReadStream('some-gzipped-tarball.tgz').pipe(untar)\n```\n\nIf you are pumping object streams together use `pipeline = pumpify.obj(s1, s2, ...)`.\nCall `pipeline.destroy()` to destroy the pipeline (including the streams passed to pumpify).\n\n### Using `setPipeline(s1, s2, ...)`\n\nSimilar to [duplexify](https://github.com/mafintosh/duplexify) you can also define the pipeline asynchronously using `setPipeline(s1, s2, ...)`\n\n``` js\nvar untar = pumpify()\n\nsetTimeout(function() {\n // will start draining the input now\n untar.setPipeline(zlib.createGunzip(), tar.extract('output-folder'))\n}, 1000)\n\nfs.createReadStream('some-gzipped-tarball.tgz').pipe(untar)\n```\n\n## License\n\nMIT\n\n## Related\n\n`pumpify` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# qs <sup>[![Version Badge][2]][1]</sup>\n\n[![Build Status][3]][4]\n[![dependency status][5]][6]\n[![dev dependency status][7]][8]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][11]][1]\n\nA querystring parsing and stringifying library with some added security.\n\nLead Maintainer: [Jordan Harband](https://github.com/ljharb)\n\nThe **qs** module was originally created and maintained by [TJ Holowaychuk](https://github.com/visionmedia/node-querystring).\n\n## Usage\n\n```javascript\nvar qs = require('qs');\nvar assert = require('assert');\n\nvar obj = qs.parse('a=c');\nassert.deepEqual(obj, { a: 'c' });\n\nvar str = qs.stringify(obj);\nassert.equal(str, 'a=c');\n```\n\n### Parsing Objects\n\n[](#preventEval)\n```javascript\nqs.parse(string, [options]);\n```\n\n**qs** allows you to create nested objects within your query strings, by surrounding the name of sub-keys with square brackets `[]`.\nFor example, the string `'foo[bar]=baz'` converts to:\n\n```javascript\nassert.deepEqual(qs.parse('foo[bar]=baz'), {\n foo: {\n bar: 'baz'\n }\n});\n```\n\nWhen using the `plainObjects` option the parsed value is returned as a null object, created via `Object.create(null)` and as such you should be aware that prototype methods will not exist on it and a user may set those names to whatever value they like:\n\n```javascript\nvar nullObject = qs.parse('a[hasOwnProperty]=b', { plainObjects: true });\nassert.deepEqual(nullObject, { a: { hasOwnProperty: 'b' } });\n```\n\nBy default parameters that would overwrite properties on the object prototype are ignored, if you wish to keep the data from those fields either use `plainObjects` as mentioned above, or set `allowPrototypes` to `true` which will allow user input to overwrite those properties. *WARNING* It is generally a bad idea to enable this option as it can cause problems when attempting to use the properties that have been overwritten. Always be careful with this option.\n\n```javascript\nvar protoObject = qs.parse('a[hasOwnProperty]=b', { allowPrototypes: true });\nassert.deepEqual(protoObject, { a: { hasOwnProperty: 'b' } });\n```\n\nURI encoded strings work too:\n\n```javascript\nassert.deepEqual(qs.parse('a%5Bb%5D=c'), {\n a: { b: 'c' }\n});\n```\n\nYou can also nest your objects, like `'foo[bar][baz]=foobarbaz'`:\n\n```javascript\nassert.deepEqual(qs.parse('foo[bar][baz]=foobarbaz'), {\n foo: {\n bar: {\n baz: 'foobarbaz'\n }\n }\n});\n```\n\nBy default, when nesting objects **qs** will only parse up to 5 children deep. This means if you attempt to parse a string like\n`'a[b][c][d][e][f][g][h][i]=j'` your resulting object will be:\n\n```javascript\nvar expected = {\n a: {\n b: {\n c: {\n d: {\n e: {\n f: {\n '[g][h][i]': 'j'\n }\n }\n }\n }\n }\n }\n};\nvar string = 'a[b][c][d][e][f][g][h][i]=j';\nassert.deepEqual(qs.parse(string), expected);\n```\n\nThis depth can be overridden by passing a `depth` option to `qs.parse(string, [options])`:\n\n```javascript\nvar deep = qs.parse('a[b][c][d][e][f][g][h][i]=j', { depth: 1 });\nassert.deepEqual(deep, { a: { b: { '[c][d][e][f][g][h][i]': 'j' } } });\n```\n\nThe depth limit helps mitigate abuse when **qs** is used to parse user input, and it is recommended to keep it a reasonably small number.\n\nFor similar reasons, by default **qs** will only parse up to 1000 parameters. This can be overridden by passing a `parameterLimit` option:\n\n```javascript\nvar limited = qs.parse('a=b&c=d', { parameterLimit: 1 });\nassert.deepEqual(limited, { a: 'b' });\n```\n\nTo bypass the leading question mark, use `ignoreQueryPrefix`:\n\n```javascript\nvar prefixed = qs.parse('?a=b&c=d', { ignoreQueryPrefix: true });\nassert.deepEqual(prefixed, { a: 'b', c: 'd' });\n```\n\nAn optional delimiter can also be passed:\n\n```javascript\nvar delimited = qs.parse('a=b;c=d', { delimiter: ';' });\nassert.deepEqual(delimited, { a: 'b', c: 'd' });\n```\n\nDelimiters can be a regular expression too:\n\n```javascript\nvar regexed = qs.parse('a=b;c=d,e=f', { delimiter: /[;,]/ });\nassert.deepEqual(regexed, { a: 'b', c: 'd', e: 'f' });\n```\n\nOption `allowDots` can be used to enable dot notation:\n\n```javascript\nvar withDots = qs.parse('a.b=c', { allowDots: true });\nassert.deepEqual(withDots, { a: { b: 'c' } });\n```\n\n### Parsing Arrays\n\n**qs** can also parse arrays using a similar `[]` notation:\n\n```javascript\nvar withArray = qs.parse('a[]=b&a[]=c');\nassert.deepEqual(withArray, { a: ['b', 'c'] });\n```\n\nYou may specify an index as well:\n\n```javascript\nvar withIndexes = qs.parse('a[1]=c&a[0]=b');\nassert.deepEqual(withIndexes, { a: ['b', 'c'] });\n```\n\nNote that the only difference between an index in an array and a key in an object is that the value between the brackets must be a number\nto create an array. When creating arrays with specific indices, **qs** will compact a sparse array to only the existing values preserving\ntheir order:\n\n```javascript\nvar noSparse = qs.parse('a[1]=b&a[15]=c');\nassert.deepEqual(noSparse, { a: ['b', 'c'] });\n```\n\nNote that an empty string is also a value, and will be preserved:\n\n```javascript\nvar withEmptyString = qs.parse('a[]=&a[]=b');\nassert.deepEqual(withEmptyString, { a: ['', 'b'] });\n\nvar withIndexedEmptyString = qs.parse('a[0]=b&a[1]=&a[2]=c');\nassert.deepEqual(withIndexedEmptyString, { a: ['b', '', 'c'] });\n```\n\n**qs** will also limit specifying indices in an array to a maximum index of `20`. Any array members with an index of greater than `20` will\ninstead be converted to an object with the index as the key:\n\n```javascript\nvar withMaxIndex = qs.parse('a[100]=b');\nassert.deepEqual(withMaxIndex, { a: { '100': 'b' } });\n```\n\nThis limit can be overridden by passing an `arrayLimit` option:\n\n```javascript\nvar withArrayLimit = qs.parse('a[1]=b', { arrayLimit: 0 });\nassert.deepEqual(withArrayLimit, { a: { '1': 'b' } });\n```\n\nTo disable array parsing entirely, set `parseArrays` to `false`.\n\n```javascript\nvar noParsingArrays = qs.parse('a[]=b', { parseArrays: false });\nassert.deepEqual(noParsingArrays, { a: { '0': 'b' } });\n```\n\nIf you mix notations, **qs** will merge the two items into an object:\n\n```javascript\nvar mixedNotation = qs.parse('a[0]=b&a[b]=c');\nassert.deepEqual(mixedNotation, { a: { '0': 'b', b: 'c' } });\n```\n\nYou can also create arrays of objects:\n\n```javascript\nvar arraysOfObjects = qs.parse('a[][b]=c');\nassert.deepEqual(arraysOfObjects, { a: [{ b: 'c' }] });\n```\n\n### Stringifying\n\n[](#preventEval)\n```javascript\nqs.stringify(object, [options]);\n```\n\nWhen stringifying, **qs** by default URI encodes output. Objects are stringified as you would expect:\n\n```javascript\nassert.equal(qs.stringify({ a: 'b' }), 'a=b');\nassert.equal(qs.stringify({ a: { b: 'c' } }), 'a%5Bb%5D=c');\n```\n\nThis encoding can be disabled by setting the `encode` option to `false`:\n\n```javascript\nvar unencoded = qs.stringify({ a: { b: 'c' } }, { encode: false });\nassert.equal(unencoded, 'a[b]=c');\n```\n\nEncoding can be disabled for keys by setting the `encodeValuesOnly` option to `true`:\n```javascript\nvar encodedValues = qs.stringify(\n { a: 'b', c: ['d', 'e=f'], f: [['g'], ['h']] },\n { encodeValuesOnly: true }\n);\nassert.equal(encodedValues,'a=b&c[0]=d&c[1]=e%3Df&f[0][0]=g&f[1][0]=h');\n```\n\nThis encoding can also be replaced by a custom encoding method set as `encoder` option:\n\n```javascript\nvar encoded = qs.stringify({ a: { b: 'c' } }, { encoder: function (str) {\n // Passed in values `a`, `b`, `c`\n return // Return encoded string\n}})\n```\n\n_(Note: the `encoder` option does not apply if `encode` is `false`)_\n\nAnalogue to the `encoder` there is a `decoder` option for `parse` to override decoding of properties and values:\n\n```javascript\nvar decoded = qs.parse('x=z', { decoder: function (str) {\n // Passed in values `x`, `z`\n return // Return decoded string\n}})\n```\n\nExamples beyond this point will be shown as though the output is not URI encoded for clarity. Please note that the return values in these cases *will* be URI encoded during real usage.\n\nWhen arrays are stringified, by default they are given explicit indices:\n\n```javascript\nqs.stringify({ a: ['b', 'c', 'd'] });\n// 'a[0]=b&a[1]=c&a[2]=d'\n```\n\nYou may override this by setting the `indices` option to `false`:\n\n```javascript\nqs.stringify({ a: ['b', 'c', 'd'] }, { indices: false });\n// 'a=b&a=c&a=d'\n```\n\nYou may use the `arrayFormat` option to specify the format of the output array:\n\n```javascript\nqs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'indices' })\n// 'a[0]=b&a[1]=c'\nqs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'brackets' })\n// 'a[]=b&a[]=c'\nqs.stringify({ a: ['b', 'c'] }, { arrayFormat: 'repeat' })\n// 'a=b&a=c'\n```\n\nWhen objects are stringified, by default they use bracket notation:\n\n```javascript\nqs.stringify({ a: { b: { c: 'd', e: 'f' } } });\n// 'a[b][c]=d&a[b][e]=f'\n```\n\nYou may override this to use dot notation by setting the `allowDots` option to `true`:\n\n```javascript\nqs.stringify({ a: { b: { c: 'd', e: 'f' } } }, { allowDots: true });\n// 'a.b.c=d&a.b.e=f'\n```\n\nEmpty strings and null values will omit the value, but the equals sign (=) remains in place:\n\n```javascript\nassert.equal(qs.stringify({ a: '' }), 'a=');\n```\n\nKey with no values (such as an empty object or array) will return nothing:\n\n```javascript\nassert.equal(qs.stringify({ a: [] }), '');\nassert.equal(qs.stringify({ a: {} }), '');\nassert.equal(qs.stringify({ a: [{}] }), '');\nassert.equal(qs.stringify({ a: { b: []} }), '');\nassert.equal(qs.stringify({ a: { b: {}} }), '');\n```\n\nProperties that are set to `undefined` will be omitted entirely:\n\n```javascript\nassert.equal(qs.stringify({ a: null, b: undefined }), 'a=');\n```\n\nThe query string may optionally be prepended with a question mark:\n\n```javascript\nassert.equal(qs.stringify({ a: 'b', c: 'd' }, { addQueryPrefix: true }), '?a=b&c=d');\n```\n\nThe delimiter may be overridden with stringify as well:\n\n```javascript\nassert.equal(qs.stringify({ a: 'b', c: 'd' }, { delimiter: ';' }), 'a=b;c=d');\n```\n\nIf you only want to override the serialization of `Date` objects, you can provide a `serializeDate` option:\n\n```javascript\nvar date = new Date(7);\nassert.equal(qs.stringify({ a: date }), 'a=1970-01-01T00:00:00.007Z'.replace(/:/g, '%3A'));\nassert.equal(\n qs.stringify({ a: date }, { serializeDate: function (d) { return d.getTime(); } }),\n 'a=7'\n);\n```\n\nYou may use the `sort` option to affect the order of parameter keys:\n\n```javascript\nfunction alphabeticalSort(a, b) {\n return a.localeCompare(b);\n}\nassert.equal(qs.stringify({ a: 'c', z: 'y', b : 'f' }, { sort: alphabeticalSort }), 'a=c&b=f&z=y');\n```\n\nFinally, you can use the `filter` option to restrict which keys will be included in the stringified output.\nIf you pass a function, it will be called for each key to obtain the replacement value. Otherwise, if you\npass an array, it will be used to select properties and array indices for stringification:\n\n```javascript\nfunction filterFunc(prefix, value) {\n if (prefix == 'b') {\n // Return an `undefined` value to omit a property.\n return;\n }\n if (prefix == 'e[f]') {\n return value.getTime();\n }\n if (prefix == 'e[g][0]') {\n return value * 2;\n }\n return value;\n}\nqs.stringify({ a: 'b', c: 'd', e: { f: new Date(123), g: [2] } }, { filter: filterFunc });\n// 'a=b&c=d&e[f]=123&e[g][0]=4'\nqs.stringify({ a: 'b', c: 'd', e: 'f' }, { filter: ['a', 'e'] });\n// 'a=b&e=f'\nqs.stringify({ a: ['b', 'c', 'd'], e: 'f' }, { filter: ['a', 0, 2] });\n// 'a[0]=b&a[2]=d'\n```\n\n### Handling of `null` values\n\nBy default, `null` values are treated like empty strings:\n\n```javascript\nvar withNull = qs.stringify({ a: null, b: '' });\nassert.equal(withNull, 'a=&b=');\n```\n\nParsing does not distinguish between parameters with and without equal signs. Both are converted to empty strings.\n\n```javascript\nvar equalsInsensitive = qs.parse('a&b=');\nassert.deepEqual(equalsInsensitive, { a: '', b: '' });\n```\n\nTo distinguish between `null` values and empty strings use the `strictNullHandling` flag. In the result string the `null`\nvalues have no `=` sign:\n\n```javascript\nvar strictNull = qs.stringify({ a: null, b: '' }, { strictNullHandling: true });\nassert.equal(strictNull, 'a&b=');\n```\n\nTo parse values without `=` back to `null` use the `strictNullHandling` flag:\n\n```javascript\nvar parsedStrictNull = qs.parse('a&b=', { strictNullHandling: true });\nassert.deepEqual(parsedStrictNull, { a: null, b: '' });\n```\n\nTo completely skip rendering keys with `null` values, use the `skipNulls` flag:\n\n```javascript\nvar nullsSkipped = qs.stringify({ a: 'b', c: null}, { skipNulls: true });\nassert.equal(nullsSkipped, 'a=b');\n```\n\n### Dealing with special character sets\n\nBy default the encoding and decoding of characters is done in `utf-8`. If you\nwish to encode querystrings to a different character set (i.e.\n[Shift JIS](https://en.wikipedia.org/wiki/Shift_JIS)) you can use the\n[`qs-iconv`](https://github.com/martinheidegger/qs-iconv) library:\n\n```javascript\nvar encoder = require('qs-iconv/encoder')('shift_jis');\nvar shiftJISEncoded = qs.stringify({ a: 'こんにちは！' }, { encoder: encoder });\nassert.equal(shiftJISEncoded, 'a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I');\n```\n\nThis also works for decoding of query strings:\n\n```javascript\nvar decoder = require('qs-iconv/decoder')('shift_jis');\nvar obj = qs.parse('a=%82%B1%82%F1%82%C9%82%BF%82%CD%81I', { decoder: decoder });\nassert.deepEqual(obj, { a: 'こんにちは！' });\n```\n\n### RFC 3986 and RFC 1738 space encoding\n\nRFC3986 used as default option and encodes ' ' to *%20* which is backward compatible.\nIn the same time, output can be stringified as per RFC1738 with ' ' equal to '+'.\n\n```\nassert.equal(qs.stringify({ a: 'b c' }), 'a=b%20c');\nassert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC3986' }), 'a=b%20c');\nassert.equal(qs.stringify({ a: 'b c' }, { format : 'RFC1738' }), 'a=b+c');\n```\n\n[1]: https://npmjs.org/package/qs\n[2]: http://versionbadg.es/ljharb/qs.svg\n[3]: https://api.travis-ci.org/ljharb/qs.svg\n[4]: https://travis-ci.org/ljharb/qs\n[5]: https://david-dm.org/ljharb/qs.svg\n[6]: https://david-dm.org/ljharb/qs\n[7]: https://david-dm.org/ljharb/qs/dev-status.svg\n[8]: https://david-dm.org/ljharb/qs?type=dev\n[9]: https://ci.testling.com/ljharb/qs.png\n[10]: https://ci.testling.com/ljharb/qs\n[11]: https://nodei.co/npm/qs.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/qs.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/qs.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=qs\n# is-data-descriptor [](https://www.npmjs.com/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://travis-ci.org/jonschlinkert/is-data-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript data descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-data-descriptor\n```\n\n## Usage\n\n```js\nvar isDataDesc = require('is-data-descriptor');\n```\n\n## Examples\n\n`true` when the descriptor has valid properties with valid values.\n\n```js\n// `value` can be anything\nisDataDesc({value: 'foo'})\nisDataDesc({value: function() {}})\nisDataDesc({value: true})\n//=> true\n```\n\n`false` when not an object\n\n```js\nisDataDesc('a')\n//=> false\nisDataDesc(null)\n//=> false\nisDataDesc([])\n//=> false\n```\n\n`false` when the object has invalid properties\n\n```js\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', get: function(){}})\n//=> false\nisDataDesc({get: function(){}, value: 'foo'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDataDesc({value: 'foo', enumerable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', configurable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', writable: 'foo'})\n//=> false\n```\n\n## Valid properties\n\nThe only valid data descriptor properties are the following:\n\n* `configurable` (required)\n* `enumerable` (required)\n* `value` (optional)\n* `writable` (optional)\n\nTo be a valid data descriptor, either `value` or `writable` must be defined.\n\n**Invalid properties**\n\nA descriptor may have additional _invalid_ properties (an error will **not** be thrown).\n\n```js\nvar foo = {};\n\nObject.defineProperty(foo, 'bar', {\n enumerable: true,\n whatever: 'blah', // invalid, but doesn't cause an error\n get: function() {\n return 'baz';\n }\n});\n\nconsole.log(foo.bar);\n//=> 'baz'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 21 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# has-value [](https://www.npmjs.com/package/has-value) [](https://npmjs.org/package/has-value) [](https://npmjs.org/package/has-value) [](https://travis-ci.org/jonschlinkert/has-value)\n\n> Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save has-value\n```\n\n**Works for:**\n\n* booleans\n* functions\n* numbers\n* strings\n* nulls\n* object\n* arrays\n\n## Usage\n\nWorks with property values (supports object-path notation, like `foo.bar`) or a single value:\n\n```js\nvar hasValue = require('has-value');\n\nhasValue('foo');\nhasValue({foo: 'bar'}, 'foo');\nhasValue({a: {b: {c: 'foo'}}}, 'a.b.c');\n//=> true\n\nhasValue('');\nhasValue({foo: ''}, 'foo');\n//=> false\n\nhasValue(0);\nhasValue(1);\nhasValue({foo: 0}, 'foo');\nhasValue({foo: 1}, 'foo');\nhasValue({foo: null}, 'foo');\nhasValue({foo: {bar: 'a'}}}, 'foo');\nhasValue({foo: {bar: 'a'}}}, 'foo.bar');\n//=> true\n\nhasValue({foo: {}}}, 'foo');\nhasValue({foo: {bar: {}}}}, 'foo.bar');\nhasValue({foo: undefined}, 'foo');\n//=> false\n\nhasValue([]);\nhasValue([[]]);\nhasValue([[], []]);\nhasValue([undefined]);\nhasValue({foo: []}, 'foo');\n//=> false\n\nhasValue([0]);\nhasValue([null]);\nhasValue(['foo']);\nhasValue({foo: ['a']}, 'foo');\n//=> true\n\nhasValue(function() {})\nhasValue(function(foo) {})\nhasValue({foo: function(foo) {}}, 'foo'); \nhasValue({foo: function() {}}, 'foo');\n//=> true\n\nhasValue(true);\nhasValue(false);\nhasValue({foo: true}, 'foo');\nhasValue({foo: false}, 'foo');\n//=> true\n```\n\n## isEmpty\n\nTo do the opposite and test for empty values, do:\n\n```js\nfunction isEmpty(o) {\n return !hasValue.apply(hasValue, arguments);\n}\n```\n\n## Release history\n\n### v1.0.0\n\n* `zero` always returns true\n* `array` now recurses, so that an array of empty arrays will return `false`\n* `null` now returns true\n\n## About\n\n### Related projects\n\n* [define-property](https://www.npmjs.com/package/define-property): Define a non-enumerable property on an object. | [homepage](https://github.com/jonschlinkert/define-property \"Define a non-enumerable property on an object.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value \"Delete nested properties from an object using dot notation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 17 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [rmharrison](https://github.com/rmharrison) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 19, 2017._\n# map-cache [](https://www.npmjs.com/package/map-cache) [](https://npmjs.org/package/map-cache) [](https://travis-ci.org/jonschlinkert/map-cache)\n\nBasic cache object for storing key-value pairs.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install map-cache --save\n```\n\nBased on MapCache in Lo-dash v3.0. [MIT License](https://github.com/lodash/lodash/blob/master/LICENSE.txt)\n\n## Usage\n\n```js\nvar MapCache = require('map-cache');\nvar mapCache = new MapCache();\n```\n\n## API\n\n### [MapCache](index.js#L28)\n\nCreates a cache object to store key/value pairs.\n\n**Example**\n\n```js\nvar cache = new MapCache();\n```\n\n### [.set](index.js#L45)\n\nAdds `value` to `key` on the cache.\n\n**Params**\n\n* `key` **{String}**: The key of the value to cache.\n* `value` **{any}**: The value to cache.\n* `returns` **{Object}**: Returns the `Cache` object for chaining.\n\n**Example**\n\n```js\ncache.set('foo', 'bar');\n```\n\n### [.get](index.js#L65)\n\nGets the cached value for `key`.\n\n**Params**\n\n* `key` **{String}**: The key of the value to get.\n* `returns` **{any}**: Returns the cached value.\n\n**Example**\n\n```js\ncache.get('foo');\n//=> 'bar'\n```\n\n### [.has](index.js#L82)\n\nChecks if a cached value for `key` exists.\n\n**Params**\n\n* `key` **{String}**: The key of the entry to check.\n* `returns` **{Boolean}**: Returns `true` if an entry for `key` exists, else `false`.\n\n**Example**\n\n```js\ncache.has('foo');\n//=> true\n```\n\n### [.del](index.js#L98)\n\nRemoves `key` and its value from the cache.\n\n**Params**\n\n* `key` **{String}**: The key of the value to remove.\n* `returns` **{Boolean}**: Returns `true` if the entry was removed successfully, else `false`.\n\n**Example**\n\n```js\ncache.del('foo');\n```\n\n## Related projects\n\nYou might also be interested in these projects:\n\n* [cache-base](https://www.npmjs.com/package/cache-base): Basic object cache with `get`, `set`, `del`, and `has` methods for node.js/javascript projects. | [homepage](https://github.com/jonschlinkert/cache-base)\n* [config-cache](https://www.npmjs.com/package/config-cache): General purpose JavaScript object storage methods. | [homepage](https://github.com/jonschlinkert/config-cache)\n* [option-cache](https://www.npmjs.com/package/option-cache): Simple API for managing options in JavaScript applications. | [homepage](https://github.com/jonschlinkert/option-cache)\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/map-cache/issues/new).\n\n## Building docs\n\nGenerate readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install verb && npm run docs\n```\n\nOr, if [verb](https://github.com/verbose/verb) is installed globally:\n\n```sh\n$ verb\n```\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/map-cache/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on May 10, 2016._\n# define-property [](http://badge.fury.io/js/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i define-property --save\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## Related projects\n\n* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)\n* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._\n[RFC6265](https://tools.ietf.org/html/rfc6265) Cookies and CookieJar for Node.js\n\n[](https://nodei.co/npm/tough-cookie/)\n\n[](https://travis-ci.org/salesforce/tough-cookie)\n\n# Synopsis\n\n``` javascript\nvar tough = require('tough-cookie');\nvar Cookie = tough.Cookie;\nvar cookie = Cookie.parse(header);\ncookie.value = 'somethingdifferent';\nheader = cookie.toString();\n\nvar cookiejar = new tough.CookieJar();\ncookiejar.setCookie(cookie, 'http://currentdomain.example.com/path', cb);\n// ...\ncookiejar.getCookies('http://example.com/otherpath',function(err,cookies) {\n res.headers['cookie'] = cookies.join('; ');\n});\n```\n\n# Installation\n\nIt's _so_ easy!\n\n`npm install tough-cookie`\n\nWhy the name? NPM modules `cookie`, `cookies` and `cookiejar` were already taken.\n\n## Version Support\n\nSupport for versions of node.js will follow that of the [request](https://www.npmjs.com/package/request) module.\n\n# API\n\n## tough\n\nFunctions on the module you get from `require('tough-cookie')`. All can be used as pure functions and don't need to be \"bound\".\n\n**Note**: prior to 1.0.x, several of these functions took a `strict` parameter. This has since been removed from the API as it was no longer necessary.\n\n### `parseDate(string)`\n\nParse a cookie date string into a `Date`. Parses according to RFC6265 Section 5.1.1, not `Date.parse()`.\n\n### `formatDate(date)`\n\nFormat a Date into a RFC1123 string (the RFC6265-recommended format).\n\n### `canonicalDomain(str)`\n\nTransforms a domain-name into a canonical domain-name. The canonical domain-name is a trimmed, lowercased, stripped-of-leading-dot and optionally punycode-encoded domain-name (Section 5.1.2 of RFC6265). For the most part, this function is idempotent (can be run again on its output without ill effects).\n\n### `domainMatch(str,domStr[,canonicalize=true])`\n\nAnswers \"does this real domain match the domain in a cookie?\". The `str` is the \"current\" domain-name and the `domStr` is the \"cookie\" domain-name. Matches according to RFC6265 Section 5.1.3, but it helps to think of it as a \"suffix match\".\n\nThe `canonicalize` parameter will run the other two parameters through `canonicalDomain` or not.\n\n### `defaultPath(path)`\n\nGiven a current request/response path, gives the Path apropriate for storing in a cookie. This is basically the \"directory\" of a \"file\" in the path, but is specified by Section 5.1.4 of the RFC.\n\nThe `path` parameter MUST be _only_ the pathname part of a URI (i.e. excludes the hostname, query, fragment, etc.). This is the `.pathname` property of node's `uri.parse()` output.\n\n### `pathMatch(reqPath,cookiePath)`\n\nAnswers \"does the request-path path-match a given cookie-path?\" as per RFC6265 Section 5.1.4. Returns a boolean.\n\nThis is essentially a prefix-match where `cookiePath` is a prefix of `reqPath`.\n\n### `parse(cookieString[, options])`\n\nalias for `Cookie.parse(cookieString[, options])`\n\n### `fromJSON(string)`\n\nalias for `Cookie.fromJSON(string)`\n\n### `getPublicSuffix(hostname)`\n\nReturns the public suffix of this hostname. The public suffix is the shortest domain-name upon which a cookie can be set. Returns `null` if the hostname cannot have cookies set for it.\n\nFor example: `www.example.com` and `www.subdomain.example.com` both have public suffix `example.com`.\n\nFor further information, see http://publicsuffix.org/. This module derives its list from that site. This call is currently a wrapper around [`psl`](https://www.npmjs.com/package/psl)'s [get() method](https://www.npmjs.com/package/psl#pslgetdomain).\n\n### `cookieCompare(a,b)`\n\nFor use with `.sort()`, sorts a list of cookies into the recommended order given in the RFC (Section 5.4 step 2). The sort algorithm is, in order of precedence:\n\n* Longest `.path`\n* oldest `.creation` (which has a 1ms precision, same as `Date`)\n* lowest `.creationIndex` (to get beyond the 1ms precision)\n\n``` javascript\nvar cookies = [ /* unsorted array of Cookie objects */ ];\ncookies = cookies.sort(cookieCompare);\n```\n\n**Note**: Since JavaScript's `Date` is limited to a 1ms precision, cookies within the same milisecond are entirely possible. This is especially true when using the `now` option to `.setCookie()`. The `.creationIndex` property is a per-process global counter, assigned during construction with `new Cookie()`. This preserves the spirit of the RFC sorting: older cookies go first. This works great for `MemoryCookieStore`, since `Set-Cookie` headers are parsed in order, but may not be so great for distributed systems. Sophisticated `Store`s may wish to set this to some other _logical clock_ such that if cookies A and B are created in the same millisecond, but cookie A is created before cookie B, then `A.creationIndex < B.creationIndex`. If you want to alter the global counter, which you probably _shouldn't_ do, it's stored in `Cookie.cookiesCreated`.\n\n### `permuteDomain(domain)`\n\nGenerates a list of all possible domains that `domainMatch()` the parameter. May be handy for implementing cookie stores.\n\n### `permutePath(path)`\n\nGenerates a list of all possible paths that `pathMatch()` the parameter. May be handy for implementing cookie stores.\n\n## Cookie\n\nExported via `tough.Cookie`.\n\n### `Cookie.parse(cookieString[, options])`\n\nParses a single Cookie or Set-Cookie HTTP header into a `Cookie` object. Returns `undefined` if the string can't be parsed.\n\nThe options parameter is not required and currently has only one property:\n\n * _loose_ - boolean - if `true` enable parsing of key-less cookies like `=abc` and `=`, which are not RFC-compliant.\n\nIf options is not an object, it is ignored, which means you can use `Array#map` with it.\n\nHere's how to process the Set-Cookie header(s) on a node HTTP/HTTPS response:\n\n``` javascript\nif (res.headers['set-cookie'] instanceof Array)\n cookies = res.headers['set-cookie'].map(Cookie.parse);\nelse\n cookies = [Cookie.parse(res.headers['set-cookie'])];\n```\n\n_Note:_ in version 2.3.3, tough-cookie limited the number of spaces before the `=` to 256 characters. This limitation has since been removed.\nSee [Issue 92](https://github.com/salesforce/tough-cookie/issues/92)\n\n### Properties\n\nCookie object properties:\n\n * _key_ - string - the name or key of the cookie (default \"\")\n * _value_ - string - the value of the cookie (default \"\")\n * _expires_ - `Date` - if set, the `Expires=` attribute of the cookie (defaults to the string `\"Infinity\"`). See `setExpires()`\n * _maxAge_ - seconds - if set, the `Max-Age=` attribute _in seconds_ of the cookie. May also be set to strings `\"Infinity\"` and `\"-Infinity\"` for non-expiry and immediate-expiry, respectively. See `setMaxAge()`\n * _domain_ - string - the `Domain=` attribute of the cookie\n * _path_ - string - the `Path=` of the cookie\n * _secure_ - boolean - the `Secure` cookie flag\n * _httpOnly_ - boolean - the `HttpOnly` cookie flag\n * _extensions_ - `Array` - any unrecognized cookie attributes as strings (even if equal-signs inside)\n * _creation_ - `Date` - when this cookie was constructed\n * _creationIndex_ - number - set at construction, used to provide greater sort precision (please see `cookieCompare(a,b)` for a full explanation)\n\nAfter a cookie has been passed through `CookieJar.setCookie()` it will have the following additional attributes:\n\n * _hostOnly_ - boolean - is this a host-only cookie (i.e. no Domain field was set, but was instead implied)\n * _pathIsDefault_ - boolean - if true, there was no Path field on the cookie and `defaultPath()` was used to derive one.\n * _creation_ - `Date` - **modified** from construction to when the cookie was added to the jar\n * _lastAccessed_ - `Date` - last time the cookie got accessed. Will affect cookie cleaning once implemented. Using `cookiejar.getCookies(...)` will update this attribute.\n\n### `Cookie([{properties}])`\n\nReceives an options object that can contain any of the above Cookie properties, uses the default for unspecified properties.\n\n### `.toString()`\n\nencode to a Set-Cookie header value. The Expires cookie field is set using `formatDate()`, but is omitted entirely if `.expires` is `Infinity`.\n\n### `.cookieString()`\n\nencode to a Cookie header value (i.e. the `.key` and `.value` properties joined with '=').\n\n### `.setExpires(String)`\n\nsets the expiry based on a date-string passed through `parseDate()`. If parseDate returns `null` (i.e. can't parse this date string), `.expires` is set to `\"Infinity\"` (a string) is set.\n\n### `.setMaxAge(number)`\n\nsets the maxAge in seconds. Coerces `-Infinity` to `\"-Infinity\"` and `Infinity` to `\"Infinity\"` so it JSON serializes correctly.\n\n### `.expiryTime([now=Date.now()])`\n\n### `.expiryDate([now=Date.now()])`\n\nexpiryTime() Computes the absolute unix-epoch milliseconds that this cookie expires. expiryDate() works similarly, except it returns a `Date` object. Note that in both cases the `now` parameter should be milliseconds.\n\nMax-Age takes precedence over Expires (as per the RFC). The `.creation` attribute -- or, by default, the `now` parameter -- is used to offset the `.maxAge` attribute.\n\nIf Expires (`.expires`) is set, that's returned.\n\nOtherwise, `expiryTime()` returns `Infinity` and `expiryDate()` returns a `Date` object for \"Tue, 19 Jan 2038 03:14:07 GMT\" (latest date that can be expressed by a 32-bit `time_t`; the common limit for most user-agents).\n\n### `.TTL([now=Date.now()])`\n\ncompute the TTL relative to `now` (milliseconds). The same precedence rules as for `expiryTime`/`expiryDate` apply.\n\nThe \"number\" `Infinity` is returned for cookies without an explicit expiry and `0` is returned if the cookie is expired. Otherwise a time-to-live in milliseconds is returned.\n\n### `.canonicalizedDoman()`\n\n### `.cdomain()`\n\nreturn the canonicalized `.domain` field. This is lower-cased and punycode (RFC3490) encoded if the domain has any non-ASCII characters.\n\n### `.toJSON()`\n\nFor convenience in using `JSON.serialize(cookie)`. Returns a plain-old `Object` that can be JSON-serialized.\n\nAny `Date` properties (i.e., `.expires`, `.creation`, and `.lastAccessed`) are exported in ISO format (`.toISOString()`).\n\n**NOTE**: Custom `Cookie` properties will be discarded. In tough-cookie 1.x, since there was no `.toJSON` method explicitly defined, all enumerable properties were captured. If you want a property to be serialized, add the property name to the `Cookie.serializableProperties` Array.\n\n### `Cookie.fromJSON(strOrObj)`\n\nDoes the reverse of `cookie.toJSON()`. If passed a string, will `JSON.parse()` that first.\n\nAny `Date` properties (i.e., `.expires`, `.creation`, and `.lastAccessed`) are parsed via `Date.parse()`, not the tough-cookie `parseDate`, since it's JavaScript/JSON-y timestamps being handled at this layer.\n\nReturns `null` upon JSON parsing error.\n\n### `.clone()`\n\nDoes a deep clone of this cookie, exactly implemented as `Cookie.fromJSON(cookie.toJSON())`.\n\n### `.validate()`\n\nStatus: *IN PROGRESS*. Works for a few things, but is by no means comprehensive.\n\nvalidates cookie attributes for semantic correctness. Useful for \"lint\" checking any Set-Cookie headers you generate. For now, it returns a boolean, but eventually could return a reason string -- you can future-proof with this construct:\n\n``` javascript\nif (cookie.validate() === true) {\n // it's tasty\n} else {\n // yuck!\n}\n```\n\n## CookieJar\n\nExported via `tough.CookieJar`.\n\n### `CookieJar([store],[options])`\n\nSimply use `new CookieJar()`. If you'd like to use a custom store, pass that to the constructor otherwise a `MemoryCookieStore` will be created and used.\n\nThe `options` object can be omitted and can have the following properties:\n\n * _rejectPublicSuffixes_ - boolean - default `true` - reject cookies with domains like \"com\" and \"co.uk\"\n * _looseMode_ - boolean - default `false` - accept malformed cookies like `bar` and `=bar`, which have an implied empty name.\n This is not in the standard, but is used sometimes on the web and is accepted by (most) browsers.\n\nSince eventually this module would like to support database/remote/etc. CookieJars, continuation passing style is used for CookieJar methods.\n\n### `.setCookie(cookieOrString, currentUrl, [{options},] cb(err,cookie))`\n\nAttempt to set the cookie in the cookie jar. If the operation fails, an error will be given to the callback `cb`, otherwise the cookie is passed through. The cookie will have updated `.creation`, `.lastAccessed` and `.hostOnly` properties.\n\nThe `options` object can be omitted and can have the following properties:\n\n * _http_ - boolean - default `true` - indicates if this is an HTTP or non-HTTP API. Affects HttpOnly cookies.\n * _secure_ - boolean - autodetect from url - indicates if this is a \"Secure\" API. If the currentUrl starts with `https:` or `wss:` then this is defaulted to `true`, otherwise `false`.\n * _now_ - Date - default `new Date()` - what to use for the creation/access time of cookies\n * _ignoreError_ - boolean - default `false` - silently ignore things like parse errors and invalid domains. `Store` errors aren't ignored by this option.\n\nAs per the RFC, the `.hostOnly` property is set if there was no \"Domain=\" parameter in the cookie string (or `.domain` was null on the Cookie object). The `.domain` property is set to the fully-qualified hostname of `currentUrl` in this case. Matching this cookie requires an exact hostname match (not a `domainMatch` as per usual).\n\n### `.setCookieSync(cookieOrString, currentUrl, [{options}])`\n\nSynchronous version of `setCookie`; only works with synchronous stores (e.g. the default `MemoryCookieStore`).\n\n### `.getCookies(currentUrl, [{options},] cb(err,cookies))`\n\nRetrieve the list of cookies that can be sent in a Cookie header for the current url.\n\nIf an error is encountered, that's passed as `err` to the callback, otherwise an `Array` of `Cookie` objects is passed. The array is sorted with `cookieCompare()` unless the `{sort:false}` option is given.\n\nThe `options` object can be omitted and can have the following properties:\n\n * _http_ - boolean - default `true` - indicates if this is an HTTP or non-HTTP API. Affects HttpOnly cookies.\n * _secure_ - boolean - autodetect from url - indicates if this is a \"Secure\" API. If the currentUrl starts with `https:` or `wss:` then this is defaulted to `true`, otherwise `false`.\n * _now_ - Date - default `new Date()` - what to use for the creation/access time of cookies\n * _expire_ - boolean - default `true` - perform expiry-time checking of cookies and asynchronously remove expired cookies from the store. Using `false` will return expired cookies and **not** remove them from the store (which is useful for replaying Set-Cookie headers, potentially).\n * _allPaths_ - boolean - default `false` - if `true`, do not scope cookies by path. The default uses RFC-compliant path scoping. **Note**: may not be supported by the underlying store (the default `MemoryCookieStore` supports it).\n\nThe `.lastAccessed` property of the returned cookies will have been updated.\n\n### `.getCookiesSync(currentUrl, [{options}])`\n\nSynchronous version of `getCookies`; only works with synchronous stores (e.g. the default `MemoryCookieStore`).\n\n### `.getCookieString(...)`\n\nAccepts the same options as `.getCookies()` but passes a string suitable for a Cookie header rather than an array to the callback. Simply maps the `Cookie` array via `.cookieString()`.\n\n### `.getCookieStringSync(...)`\n\nSynchronous version of `getCookieString`; only works with synchronous stores (e.g. the default `MemoryCookieStore`).\n\n### `.getSetCookieStrings(...)`\n\nReturns an array of strings suitable for **Set-Cookie** headers. Accepts the same options as `.getCookies()`. Simply maps the cookie array via `.toString()`.\n\n### `.getSetCookieStringsSync(...)`\n\nSynchronous version of `getSetCookieStrings`; only works with synchronous stores (e.g. the default `MemoryCookieStore`).\n\n### `.serialize(cb(err,serializedObject))`\n\nSerialize the Jar if the underlying store supports `.getAllCookies`.\n\n**NOTE**: Custom `Cookie` properties will be discarded. If you want a property to be serialized, add the property name to the `Cookie.serializableProperties` Array.\n\nSee [Serialization Format].\n\n### `.serializeSync()`\n\nSync version of .serialize\n\n### `.toJSON()`\n\nAlias of .serializeSync() for the convenience of `JSON.stringify(cookiejar)`.\n\n### `CookieJar.deserialize(serialized, [store], cb(err,object))`\n\nA new Jar is created and the serialized Cookies are added to the underlying store. Each `Cookie` is added via `store.putCookie` in the order in which they appear in the serialization.\n\nThe `store` argument is optional, but should be an instance of `Store`. By default, a new instance of `MemoryCookieStore` is created.\n\nAs a convenience, if `serialized` is a string, it is passed through `JSON.parse` first. If that throws an error, this is passed to the callback.\n\n### `CookieJar.deserializeSync(serialized, [store])`\n\nSync version of `.deserialize`. _Note_ that the `store` must be synchronous for this to work.\n\n### `CookieJar.fromJSON(string)`\n\nAlias of `.deserializeSync` to provide consistency with `Cookie.fromJSON()`.\n\n### `.clone([store,]cb(err,newJar))`\n\nProduces a deep clone of this jar. Modifications to the original won't affect the clone, and vice versa.\n\nThe `store` argument is optional, but should be an instance of `Store`. By default, a new instance of `MemoryCookieStore` is created. Transferring between store types is supported so long as the source implements `.getAllCookies()` and the destination implements `.putCookie()`.\n\n### `.cloneSync([store])`\n\nSynchronous version of `.clone`, returning a new `CookieJar` instance.\n\nThe `store` argument is optional, but must be a _synchronous_ `Store` instance if specified. If not passed, a new instance of `MemoryCookieStore` is used.\n\nThe _source_ and _destination_ must both be synchronous `Store`s. If one or both stores are asynchronous, use `.clone` instead. Recall that `MemoryCookieStore` supports both synchronous and asynchronous API calls.\n\n## Store\n\nBase class for CookieJar stores. Available as `tough.Store`.\n\n## Store API\n\nThe storage model for each `CookieJar` instance can be replaced with a custom implementation. The default is `MemoryCookieStore` which can be found in the `lib/memstore.js` file. The API uses continuation-passing-style to allow for asynchronous stores.\n\nStores should inherit from the base `Store` class, which is available as `require('tough-cookie').Store`.\n\nStores are asynchronous by default, but if `store.synchronous` is set to `true`, then the `*Sync` methods on the of the containing `CookieJar` can be used (however, the continuation-passing style\n\nAll `domain` parameters will have been normalized before calling.\n\nThe Cookie store must have all of the following methods.\n\n### `store.findCookie(domain, path, key, cb(err,cookie))`\n\nRetrieve a cookie with the given domain, path and key (a.k.a. name). The RFC maintains that exactly one of these cookies should exist in a store. If the store is using versioning, this means that the latest/newest such cookie should be returned.\n\nCallback takes an error and the resulting `Cookie` object. If no cookie is found then `null` MUST be passed instead (i.e. not an error).\n\n### `store.findCookies(domain, path, cb(err,cookies))`\n\nLocates cookies matching the given domain and path. This is most often called in the context of `cookiejar.getCookies()` above.\n\nIf no cookies are found, the callback MUST be passed an empty array.\n\nThe resulting list will be checked for applicability to the current request according to the RFC (domain-match, path-match, http-only-flag, secure-flag, expiry, etc.), so it's OK to use an optimistic search algorithm when implementing this method. However, the search algorithm used SHOULD try to find cookies that `domainMatch()` the domain and `pathMatch()` the path in order to limit the amount of checking that needs to be done.\n\nAs of version 0.9.12, the `allPaths` option to `cookiejar.getCookies()` above will cause the path here to be `null`. If the path is `null`, path-matching MUST NOT be performed (i.e. domain-matching only).\n\n### `store.putCookie(cookie, cb(err))`\n\nAdds a new cookie to the store. The implementation SHOULD replace any existing cookie with the same `.domain`, `.path`, and `.key` properties -- depending on the nature of the implementation, it's possible that between the call to `fetchCookie` and `putCookie` that a duplicate `putCookie` can occur.\n\nThe `cookie` object MUST NOT be modified; the caller will have already updated the `.creation` and `.lastAccessed` properties.\n\nPass an error if the cookie cannot be stored.\n\n### `store.updateCookie(oldCookie, newCookie, cb(err))`\n\nUpdate an existing cookie. The implementation MUST update the `.value` for a cookie with the same `domain`, `.path` and `.key`. The implementation SHOULD check that the old value in the store is equivalent to `oldCookie` - how the conflict is resolved is up to the store.\n\nThe `.lastAccessed` property will always be different between the two objects (to the precision possible via JavaScript's clock). Both `.creation` and `.creationIndex` are guaranteed to be the same. Stores MAY ignore or defer the `.lastAccessed` change at the cost of affecting how cookies are selected for automatic deletion (e.g., least-recently-used, which is up to the store to implement).\n\nStores may wish to optimize changing the `.value` of the cookie in the store versus storing a new cookie. If the implementation doesn't define this method a stub that calls `putCookie(newCookie,cb)` will be added to the store object.\n\nThe `newCookie` and `oldCookie` objects MUST NOT be modified.\n\nPass an error if the newCookie cannot be stored.\n\n### `store.removeCookie(domain, path, key, cb(err))`\n\nRemove a cookie from the store (see notes on `findCookie` about the uniqueness constraint).\n\nThe implementation MUST NOT pass an error if the cookie doesn't exist; only pass an error due to the failure to remove an existing cookie.\n\n### `store.removeCookies(domain, path, cb(err))`\n\nRemoves matching cookies from the store. The `path` parameter is optional, and if missing means all paths in a domain should be removed.\n\nPass an error ONLY if removing any existing cookies failed.\n\n### `store.getAllCookies(cb(err, cookies))`\n\nProduces an `Array` of all cookies during `jar.serialize()`. The items in the array can be true `Cookie` objects or generic `Object`s with the [Serialization Format] data structure.\n\nCookies SHOULD be returned in creation order to preserve sorting via `compareCookies()`. For reference, `MemoryCookieStore` will sort by `.creationIndex` since it uses true `Cookie` objects internally. If you don't return the cookies in creation order, they'll still be sorted by creation time, but this only has a precision of 1ms. See `compareCookies` for more detail.\n\nPass an error if retrieval fails.\n\n## MemoryCookieStore\n\nInherits from `Store`.\n\nA just-in-memory CookieJar synchronous store implementation, used by default. Despite being a synchronous implementation, it's usable with both the synchronous and asynchronous forms of the `CookieJar` API.\n\n## Community Cookie Stores\n\nThese are some Store implementations authored and maintained by the community. They aren't official and we don't vouch for them but you may be interested to have a look:\n\n- [`db-cookie-store`](https://github.com/JSBizon/db-cookie-store): SQL including SQLite-based databases\n- [`file-cookie-store`](https://github.com/JSBizon/file-cookie-store): Netscape cookie file format on disk\n- [`redis-cookie-store`](https://github.com/benkroeger/redis-cookie-store): Redis\n- [`tough-cookie-filestore`](https://github.com/mitsuru/tough-cookie-filestore): JSON on disk\n- [`tough-cookie-web-storage-store`](https://github.com/exponentjs/tough-cookie-web-storage-store): DOM localStorage and sessionStorage\n\n# Serialization Format\n\n**NOTE**: if you want to have custom `Cookie` properties serialized, add the property name to `Cookie.serializableProperties`.\n\n```js\n {\n // The version of tough-cookie that serialized this jar.\n version: 'tough-cookie@1.x.y',\n\n // add the store type, to make humans happy:\n storeType: 'MemoryCookieStore',\n\n // CookieJar configuration:\n rejectPublicSuffixes: true,\n // ... future items go here\n\n // Gets filled from jar.store.getAllCookies():\n cookies: [\n {\n key: 'string',\n value: 'string',\n // ...\n /* other Cookie.serializableProperties go here */\n }\n ]\n }\n```\n\n# Copyright and License\n\n(tl;dr: BSD-3-Clause with some MPL/2.0)\n\n```text\n Copyright (c) 2015, Salesforce.com, Inc.\n All rights reserved.\n\n Redistribution and use in source and binary forms, with or without\n modification, are permitted provided that the following conditions are met:\n\n 1. Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n\n 2. Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n\n 3. Neither the name of Salesforce.com nor the names of its contributors may\n be used to endorse or promote products derived from this software without\n specific prior written permission.\n\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\n LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\n INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\n CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n POSSIBILITY OF SUCH DAMAGE.\n```\ngauge\n=====\n\nA nearly stateless terminal based horizontal gauge / progress bar.\n\n```javascript\nvar Gauge = require(\"gauge\")\n\nvar gauge = new Gauge()\n\ngauge.show(\"test\", 0.20)\n\ngauge.pulse(\"this\")\n\ngauge.hide()\n```\n\n\n\n### CHANGES FROM 1.x\n\nGauge 2.x is breaking release, please see the [changelog] for details on\nwhat's changed if you were previously a user of this module.\n\n[changelog]: CHANGELOG.md\n\n### THE GAUGE CLASS\n\nThis is the typical interface to the module– it provides a pretty\nfire-and-forget interface to displaying your status information.\n\n```\nvar Gauge = require(\"gauge\")\n\nvar gauge = new Gauge([stream], [options])\n```\n\n* **stream** – *(optional, default STDERR)* A stream that progress bar\n updates are to be written to. Gauge honors backpressure and will pause\n most writing if it is indicated.\n* **options** – *(optional)* An option object.\n\nConstructs a new gauge. Gauges are drawn on a single line, and are not drawn\nif **stream** isn't a tty and a tty isn't explicitly provided.\n\nIf **stream** is a terminal or if you pass in **tty** to **options** then we\nwill detect terminal resizes and redraw to fit. We do this by watching for\n`resize` events on the tty. (To work around a bug in verisons of Node prior\nto 2.5.0, we watch for them on stdout if the tty is stderr.) Resizes to\nlarger window sizes will be clean, but shrinking the window will always\nresult in some cruft.\n\n**IMPORTANT:** If you prevously were passing in a non-tty stream but you still\nwant output (for example, a stream wrapped by the `ansi` module) then you\nneed to pass in the **tty** option below, as `gauge` needs access to\nthe underlying tty in order to do things like terminal resizes and terminal\nwidth detection.\n\nThe **options** object can have the following properties, all of which are\noptional:\n\n* **updateInterval**: How often gauge updates should be drawn, in miliseconds.\n* **fixedFramerate**: Defaults to false on node 0.8, true on everything\n else. When this is true a timer is created to trigger once every\n `updateInterval` ms, when false, updates are printed as soon as they come\n in but updates more often than `updateInterval` are ignored. The reason\n 0.8 doesn't have this set to true is that it can't `unref` its timer and\n so it would stop your program from exiting– if you want to use this\n feature with 0.8 just make sure you call `gauge.disable()` before you\n expect your program to exit.\n* **themes**: A themeset to use when selecting the theme to use. Defaults\n to `gauge/themes`, see the [themes] documentation for details.\n* **theme**: Select a theme for use, it can be a:\n * Theme object, in which case the **themes** is not used.\n * The name of a theme, which will be looked up in the current *themes*\n object.\n * A configuration object with any of `hasUnicode`, `hasColor` or\n `platform` keys, which if wlll be used to override our guesses when making\n a default theme selection.\n\n If no theme is selected then a default is picked using a combination of our\n best guesses at your OS, color support and unicode support.\n* **template**: Describes what you want your gauge to look like. The\n default is what npm uses. Detailed [documentation] is later in this\n document.\n* **hideCursor**: Defaults to true. If true, then the cursor will be hidden\n while the gauge is displayed.\n* **tty**: The tty that you're ultimately writing to. Defaults to the same\n as **stream**. This is used for detecting the width of the terminal and\n resizes. The width used is `tty.columns - 1`. If no tty is available then\n a width of `79` is assumed.\n* **enabled**: Defaults to true if `tty` is a TTY, false otherwise. If true\n the gauge starts enabled. If disabled then all update commands are\n ignored and no gauge will be printed until you call `.enable()`.\n* **Plumbing**: The class to use to actually generate the gauge for\n printing. This defaults to `require('gauge/plumbing')` and ordinarly you\n shouldn't need to override this.\n* **cleanupOnExit**: Defaults to true. Ordinarily we register an exit\n handler to make sure your cursor is turned back on and the progress bar\n erased when your process exits, even if you Ctrl-C out or otherwise exit\n unexpectedly. You can disable this and it won't register the exit handler.\n\n[has-unicode]: https://www.npmjs.com/package/has-unicode\n[themes]: #themes\n[documentation]: #templates\n\n#### `gauge.show(section | status, [completed])`\n\nThe first argument is either the section, the name of the current thing\ncontributing to progress, or an object with keys like **section**,\n**subsection** & **completed** (or any others you have types for in a custom\ntemplate). If you don't want to update or set any of these you can pass\n`null` and it will be ignored.\n\nThe second argument is the percent completed as a value between 0 and 1.\nWithout it, completion is just not updated. You'll also note that completion\ncan be passed in as part of a status object as the first argument. If both\nit and the completed argument are passed in, the completed argument wins.\n\n#### `gauge.hide([cb])`\n\nRemoves the gauge from the terminal. Optionally, callback `cb` after IO has\nhad an opportunity to happen (currently this just means after `setImmediate`\nhas called back.)\n\nIt turns out this is important when you're pausing the progress bar on one\nfilehandle and printing to another– otherwise (with a big enough print) node\ncan end up printing the \"end progress bar\" bits to the progress bar filehandle\nwhile other stuff is printing to another filehandle. These getting interleaved\ncan cause corruption in some terminals.\n\n#### `gauge.pulse([subsection])`\n\n* **subsection** – *(optional)* The specific thing that triggered this pulse\n\nSpins the spinner in the gauge to show output. If **subsection** is\nincluded then it will be combined with the last name passed to `gauge.show`.\n\n#### `gauge.disable()`\n\nHides the gauge and ignores further calls to `show` or `pulse`.\n\n#### `gauge.enable()`\n\nShows the gauge and resumes updating when `show` or `pulse` is called.\n\n#### `gauge.isEnabled()`\n\nReturns true if the gauge is enabled.\n\n#### `gauge.setThemeset(themes)`\n\nChange the themeset to select a theme from. The same as the `themes` option\nused in the constructor. The theme will be reselected from this themeset.\n\n#### `gauge.setTheme(theme)`\n\nChange the active theme, will be displayed with the next show or pulse. This can be:\n\n* Theme object, in which case the **themes** is not used.\n* The name of a theme, which will be looked up in the current *themes*\n object.\n* A configuration object with any of `hasUnicode`, `hasColor` or\n `platform` keys, which if wlll be used to override our guesses when making\n a default theme selection.\n\nIf no theme is selected then a default is picked using a combination of our\nbest guesses at your OS, color support and unicode support.\n\n#### `gauge.setTemplate(template)`\n\nChange the active template, will be displayed with the next show or pulse\n\n### Tracking Completion\n\nIf you have more than one thing going on that you want to track completion\nof, you may find the related [are-we-there-yet] helpful. It's `change`\nevent can be wired up to the `show` method to get a more traditional\nprogress bar interface.\n\n[are-we-there-yet]: https://www.npmjs.com/package/are-we-there-yet\n\n### THEMES\n\n```\nvar themes = require('gauge/themes')\n\n// fetch the default color unicode theme for this platform\nvar ourTheme = themes({hasUnicode: true, hasColor: true})\n\n// fetch the default non-color unicode theme for osx\nvar ourTheme = themes({hasUnicode: true, hasColor: false, platform: 'darwin'})\n\n// create a new theme based on the color ascii theme for this platform\n// that brackets the progress bar with arrows\nvar ourTheme = themes.newTheme(theme(hasUnicode: false, hasColor: true}), {\n preProgressbar: '→',\n postProgressbar: '←'\n})\n```\n\nThe object returned by `gauge/themes` is an instance of the `ThemeSet` class.\n\n```\nvar ThemeSet = require('gauge/theme-set')\nvar themes = new ThemeSet()\n// or\nvar themes = require('gauge/themes')\nvar mythemes = themes.newThemeset() // creates a new themeset based on the default themes\n```\n\n#### themes(opts)\n#### themes.getDefault(opts)\n\nTheme objects are a function that fetches the default theme based on\nplatform, unicode and color support.\n\nOptions is an object with the following properties:\n\n* **hasUnicode** - If true, fetch a unicode theme, if no unicode theme is\n available then a non-unicode theme will be used.\n* **hasColor** - If true, fetch a color theme, if no color theme is\n available a non-color theme will be used.\n* **platform** (optional) - Defaults to `process.platform`. If no\n platform match is available then `fallback` is used instead.\n\nIf no compatible theme can be found then an error will be thrown with a\n`code` of `EMISSINGTHEME`.\n\n#### themes.addTheme(themeName, themeObj)\n#### themes.addTheme(themeName, [parentTheme], newTheme)\n\nAdds a named theme to the themeset. You can pass in either a theme object,\nas returned by `themes.newTheme` or the arguments you'd pass to\n`themes.newTheme`.\n\n#### themes.getThemeNames()\n\nReturn a list of all of the names of the themes in this themeset. Suitable\nfor use in `themes.getTheme(…)`.\n\n#### themes.getTheme(name)\n\nReturns the theme object from this theme set named `name`.\n\nIf `name` does not exist in this themeset an error will be thrown with\na `code` of `EMISSINGTHEME`.\n\n#### themes.setDefault([opts], themeName)\n\n`opts` is an object with the following properties.\n\n* **platform** - Defaults to `'fallback'`. If your theme is platform\n specific, specify that here with the platform from `process.platform`, eg,\n `win32`, `darwin`, etc.\n* **hasUnicode** - Defaults to `false`. If your theme uses unicode you\n should set this to true.\n* **hasColor** - Defaults to `false`. If your theme uses color you should\n set this to true.\n\n`themeName` is the name of the theme (as given to `addTheme`) to use for\nthis set of `opts`.\n\n#### themes.newTheme([parentTheme,] newTheme)\n\nCreate a new theme object based on `parentTheme`. If no `parentTheme` is\nprovided then a minimal parentTheme that defines functions for rendering the\nactivity indicator (spinner) and progress bar will be defined. (This\nfallback parent is defined in `gauge/base-theme`.)\n\nnewTheme should be a bare object– we'll start by discussing the properties\ndefined by the default themes:\n\n* **preProgressbar** - displayed prior to the progress bar, if the progress\n bar is displayed.\n* **postProgressbar** - displayed after the progress bar, if the progress bar\n is displayed.\n* **progressBarTheme** - The subtheme passed through to the progress bar\n renderer, it's an object with `complete` and `remaining` properties\n that are the strings you want repeated for those sections of the progress\n bar.\n* **activityIndicatorTheme** - The theme for the activity indicator (spinner),\n this can either be a string, in which each character is a different step, or\n an array of strings.\n* **preSubsection** - Displayed as a separator between the `section` and\n `subsection` when the latter is printed.\n\nMore generally, themes can have any value that would be a valid value when rendering\ntemplates. The properties in the theme are used when their name matches a type in\nthe template. Their values can be:\n\n* **strings & numbers** - They'll be included as is\n* **function (values, theme, width)** - Should return what you want in your output.\n *values* is an object with values provided via `gauge.show`,\n *theme* is the theme specific to this item (see below) or this theme object,\n and *width* is the number of characters wide your result should be.\n\nThere are a couple of special prefixes:\n\n* **pre** - Is shown prior to the property, if its displayed.\n* **post** - Is shown after the property, if its displayed.\n\nAnd one special suffix:\n\n* **Theme** - Its value is passed to a function-type item as the theme.\n\n#### themes.addToAllThemes(theme)\n\nThis *mixes-in* `theme` into all themes currently defined. It also adds it\nto the default parent theme for this themeset, so future themes added to\nthis themeset will get the values from `theme` by default.\n\n#### themes.newThemeset()\n\nCopy the current themeset into a new one. This allows you to easily inherit\none themeset from another.\n\n### TEMPLATES\n\nA template is an array of objects and strings that, after being evaluated,\nwill be turned into the gauge line. The default template is:\n\n```javascript\n[\n {type: 'progressbar', length: 20},\n {type: 'activityIndicator', kerning: 1, length: 1},\n {type: 'section', kerning: 1, default: ''},\n {type: 'subsection', kerning: 1, default: ''}\n]\n```\n\nThe various template elements can either be **plain strings**, in which case they will\nbe be included verbatum in the output, or objects with the following properties:\n\n* *type* can be any of the following plus any keys you pass into `gauge.show` plus\n any keys you have on a custom theme.\n * `section` – What big thing you're working on now.\n * `subsection` – What component of that thing is currently working.\n * `activityIndicator` – Shows a spinner using the `activityIndicatorTheme`\n from your active theme.\n * `progressbar` – A progress bar representing your current `completed`\n using the `progressbarTheme` from your active theme.\n* *kerning* – Number of spaces that must be between this item and other\n items, if this item is displayed at all.\n* *maxLength* – The maximum length for this element. If its value is longer it\n will be truncated.\n* *minLength* – The minimum length for this element. If its value is shorter it\n will be padded according to the *align* value.\n* *align* – (Default: left) Possible values \"left\", \"right\" and \"center\". Works\n as you'd expect from word processors.\n* *length* – Provides a single value for both *minLength* and *maxLength*. If both\n *length* and *minLength or *maxLength* are specifed then the latter take precedence.\n* *value* – A literal value to use for this template item.\n* *default* – A default value to use for this template item if a value\n wasn't otherwise passed in.\n\n### PLUMBING\n\nThis is the super simple, assume nothing, do no magic internals used by gauge to\nimplement its ordinary interface.\n\n```\nvar Plumbing = require('gauge/plumbing')\nvar gauge = new Plumbing(theme, template, width)\n```\n\n* **theme**: The theme to use.\n* **template**: The template to use.\n* **width**: How wide your gauge should be\n\n#### `gauge.setTheme(theme)`\n\nChange the active theme.\n\n#### `gauge.setTemplate(template)`\n\nChange the active template.\n\n#### `gauge.setWidth(width)`\n\nChange the width to render at.\n\n#### `gauge.hide()`\n\nReturn the string necessary to hide the progress bar\n\n#### `gauge.hideCursor()`\n\nReturn a string to hide the cursor.\n\n#### `gauge.showCursor()`\n\nReturn a string to show the cursor.\n\n#### `gauge.show(status)`\n\nUsing `status` for values, render the provided template with the theme and return\na string that is suitable for printing to update the gauge.\nDeep Extend\n===========\n\nRecursive object extending.\n\n[](https://travis-ci.org/unclechu/node-deep-extend)\n\n[](https://nodei.co/npm/deep-extend/)\n\nInstall\n-------\n\n```bash\n$ npm install deep-extend\n```\n\nUsage\n-----\n\n```javascript\nvar deepExtend = require('deep-extend');\nvar obj1 = {\n a: 1,\n b: 2,\n d: {\n a: 1,\n b: [],\n c: { test1: 123, test2: 321 }\n },\n f: 5,\n g: 123,\n i: 321,\n j: [1, 2]\n};\nvar obj2 = {\n b: 3,\n c: 5,\n d: {\n b: { first: 'one', second: 'two' },\n c: { test2: 222 }\n },\n e: { one: 1, two: 2 },\n f: [],\n g: (void 0),\n h: /abc/g,\n i: null,\n j: [3, 4]\n};\n\ndeepExtend(obj1, obj2);\n\nconsole.log(obj1);\n/*\n{ a: 1,\n b: 3,\n d:\n { a: 1,\n b: { first: 'one', second: 'two' },\n c: { test1: 123, test2: 222 } },\n f: [],\n g: undefined,\n c: 5,\n e: { one: 1, two: 2 },\n h: /abc/g,\n i: null,\n j: [3, 4] }\n*/\n```\n\nUnit testing\n------------\n\n```bash\n$ npm test\n```\n\nChangelog\n---------\n\n[CHANGELOG.md](./CHANGELOG.md)\n\nAny issues?\n-----------\n\nPlease, report about issues\n[here](https://github.com/unclechu/node-deep-extend/issues).\n\nLicense\n-------\n\n[MIT](./LICENSE)\n# Miller-Rabin\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# memory-fs\n\nA simple in-memory filesystem. Holds data in a javascript object.\n\n``` javascript\nvar MemoryFileSystem = require(\"memory-fs\");\nvar fs = new MemoryFileSystem(); // Optionally pass a javascript object\n\nfs.mkdirpSync(\"/a/test/dir\");\nfs.writeFileSync(\"/a/test/dir/file.txt\", \"Hello World\");\nfs.readFileSync(\"/a/test/dir/file.txt\"); // returns Buffer(\"Hello World\")\n\n// Async variants too\nfs.unlink(\"/a/test/dir/file.txt\", function(err) {\n\t// ...\n});\n\nfs.readdirSync(\"/a/test\"); // returns [\"dir\"]\nfs.statSync(\"/a/test/dir\").isDirectory(); // returns true\nfs.rmdirSync(\"/a/test/dir\");\n\nfs.mkdirpSync(\"C:\\\\use\\\\windows\\\\style\\\\paths\");\n```\n\n## License\n\nCopyright (c) 2012-2014 Tobias Koppers\n\nMIT (http://www.opensource.org/licenses/mit-license.php)\n# negotiator\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nAn HTTP content negotiator for Node.js\n\n## Installation\n\n```sh\n$ npm install negotiator\n```\n\n## API\n\n```js\nvar Negotiator = require('negotiator')\n```\n\n### Accept Negotiation\n\n```js\navailableMediaTypes = ['text/html', 'text/plain', 'application/json']\n\n// The negotiator constructor receives a request object\nnegotiator = new Negotiator(request)\n\n// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'\n\nnegotiator.mediaTypes()\n// -> ['text/html', 'image/jpeg', 'application/*']\n\nnegotiator.mediaTypes(availableMediaTypes)\n// -> ['text/html', 'application/json']\n\nnegotiator.mediaType(availableMediaTypes)\n// -> 'text/html'\n```\n\nYou can check a working example at `examples/accept.js`.\n\n#### Methods\n\n##### mediaType()\n\nReturns the most preferred media type from the client.\n\n##### mediaType(availableMediaType)\n\nReturns the most preferred media type from a list of available media types.\n\n##### mediaTypes()\n\nReturns an array of preferred media types ordered by the client preference.\n\n##### mediaTypes(availableMediaTypes)\n\nReturns an array of preferred media types ordered by priority from a list of\navailable media types.\n\n### Accept-Language Negotiation\n\n```js\nnegotiator = new Negotiator(request)\n\navailableLanguages = ['en', 'es', 'fr']\n\n// Let's say Accept-Language header is 'en;q=0.8, es, pt'\n\nnegotiator.languages()\n// -> ['es', 'pt', 'en']\n\nnegotiator.languages(availableLanguages)\n// -> ['es', 'en']\n\nlanguage = negotiator.language(availableLanguages)\n// -> 'es'\n```\n\nYou can check a working example at `examples/language.js`.\n\n#### Methods\n\n##### language()\n\nReturns the most preferred language from the client.\n\n##### language(availableLanguages)\n\nReturns the most preferred language from a list of available languages.\n\n##### languages()\n\nReturns an array of preferred languages ordered by the client preference.\n\n##### languages(availableLanguages)\n\nReturns an array of preferred languages ordered by priority from a list of\navailable languages.\n\n### Accept-Charset Negotiation\n\n```js\navailableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']\n\nnegotiator = new Negotiator(request)\n\n// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'\n\nnegotiator.charsets()\n// -> ['utf-8', 'iso-8859-1', 'utf-7']\n\nnegotiator.charsets(availableCharsets)\n// -> ['utf-8', 'iso-8859-1']\n\nnegotiator.charset(availableCharsets)\n// -> 'utf-8'\n```\n\nYou can check a working example at `examples/charset.js`.\n\n#### Methods\n\n##### charset()\n\nReturns the most preferred charset from the client.\n\n##### charset(availableCharsets)\n\nReturns the most preferred charset from a list of available charsets.\n\n##### charsets()\n\nReturns an array of preferred charsets ordered by the client preference.\n\n##### charsets(availableCharsets)\n\nReturns an array of preferred charsets ordered by priority from a list of\navailable charsets.\n\n### Accept-Encoding Negotiation\n\n```js\navailableEncodings = ['identity', 'gzip']\n\nnegotiator = new Negotiator(request)\n\n// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'\n\nnegotiator.encodings()\n// -> ['gzip', 'identity', 'compress']\n\nnegotiator.encodings(availableEncodings)\n// -> ['gzip', 'identity']\n\nnegotiator.encoding(availableEncodings)\n// -> 'gzip'\n```\n\nYou can check a working example at `examples/encoding.js`.\n\n#### Methods\n\n##### encoding()\n\nReturns the most preferred encoding from the client.\n\n##### encoding(availableEncodings)\n\nReturns the most preferred encoding from a list of available encodings.\n\n##### encodings()\n\nReturns an array of preferred encodings ordered by the client preference.\n\n##### encodings(availableEncodings)\n\nReturns an array of preferred encodings ordered by priority from a list of\navailable encodings.\n\n## See Also\n\nThe [accepts](https://npmjs.org/package/accepts#readme) module builds on\nthis module and provides an alternative interface, mime type validation,\nand more.\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/negotiator.svg\n[npm-url]: https://npmjs.org/package/negotiator\n[node-version-image]: https://img.shields.io/node/v/negotiator.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/negotiator/master.svg\n[travis-url]: https://travis-ci.org/jshttp/negotiator\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/negotiator/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/negotiator?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/negotiator.svg\n[downloads-url]: https://npmjs.org/package/negotiator\n# pump\n\npump is a small node module that pipes streams together and destroys all of them if one of them closes.\n\n```\nnpm install pump\n```\n\n[](http://travis-ci.org/mafintosh/pump)\n\n## What problem does it solve?\n\nWhen using standard `source.pipe(dest)` source will _not_ be destroyed if dest emits close or an error.\nYou are also not able to provide a callback to tell when then pipe has finished.\n\npump does these two things for you\n\n## Usage\n\nSimply pass the streams you want to pipe together to pump and add an optional callback\n\n``` js\nvar pump = require('pump')\nvar fs = require('fs')\n\nvar source = fs.createReadStream('/dev/random')\nvar dest = fs.createWriteStream('/dev/null')\n\npump(source, dest, function(err) {\n console.log('pipe finished', err)\n})\n\nsetTimeout(function() {\n dest.destroy() // when dest is closed pump will destroy source\n}, 1000)\n```\n\nYou can use pump to pipe more than two streams together as well\n\n``` js\nvar transform = someTransformStream()\n\npump(source, transform, anotherTransform, dest, function(err) {\n console.log('pipe finished', err)\n})\n```\n\nIf `source`, `transform`, `anotherTransform` or `dest` closes all of them will be destroyed.\n\nSimilarly to `stream.pipe()`, `pump()` returns the last stream passed in, so you can do:\n\n```\nreturn pump(s1, s2) // returns s2\n```\n\nIf you want to return a stream that combines *both* s1 and s2 to a single stream use\n[pumpify](https://github.com/mafintosh/pumpify) instead.\n\n## License\n\nMIT\n\n## Related\n\n`pump` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\n# cssesc [](https://travis-ci.org/mathiasbynens/cssesc) [](https://codecov.io/gh/mathiasbynens/cssesc)\n\nA JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.\n\nThis is a JavaScript library for [escaping text for use in CSS strings or identifiers](https://mathiasbynens.be/notes/css-escapes) while generating the shortest possible valid ASCII-only output. [Here’s an online demo.](https://mothereff.in/css-escapes)\n\n[A polyfill for the CSSOM `CSS.escape()` method is available in a separate repository.](https://mths.be/cssescape) (In comparison, _cssesc_ is much more powerful.)\n\nFeel free to fork if you see possible improvements!\n\n## Installation\n\nVia [npm](https://www.npmjs.com/):\n\n```bash\nnpm install cssesc\n```\n\nIn a browser:\n\n```html\n<script src=\"cssesc.js\"></script>\n```\n\nIn [Node.js](https://nodejs.org/):\n\n```js\nconst cssesc = require('cssesc');\n```\n\nIn Ruby using [the `ruby-cssesc` wrapper gem](https://github.com/borodean/ruby-cssesc):\n\n```bash\ngem install ruby-cssesc\n```\n\n```ruby\nrequire 'ruby-cssesc'\nCSSEsc.escape('I ♥ Ruby', is_identifier: true)\n```\n\nIn Sass using [`sassy-escape`](https://github.com/borodean/sassy-escape):\n\n```bash\ngem install sassy-escape\n```\n\n```scss\nbody {\n content: escape('I ♥ Sass', $is-identifier: true);\n}\n```\n\n## API\n\n### `cssesc(value, options)`\n\nThis function takes a value and returns an escaped version of the value where any characters that are not printable ASCII symbols are escaped using the shortest possible (but valid) [escape sequences for use in CSS strings or identifiers](https://mathiasbynens.be/notes/css-escapes).\n\n```js\ncssesc('Ich ♥ Bücher');\n// → 'Ich \\\\2665 B\\\\FC cher'\n\ncssesc('foo 𝌆 bar');\n// → 'foo \\\\1D306 bar'\n```\n\nBy default, `cssesc` returns a string that can be used as part of a CSS string. If the target is a CSS identifier rather than a CSS string, use the `isIdentifier: true` setting (see below).\n\nThe optional `options` argument accepts an object with the following options:\n\n#### `isIdentifier`\n\nThe default value for the `isIdentifier` option is `false`. This means that the input text will be escaped for use in a CSS string literal. If you want to use the result as a CSS identifier instead (in a selector, for example), set this option to `true`.\n\n```js\ncssesc('123a2b');\n// → '123a2b'\n\ncssesc('123a2b', {\n 'isIdentifier': true\n});\n// → '\\\\31 23a2b'\n```\n\n#### `quotes`\n\nThe default value for the `quotes` option is `'single'`. This means that any occurences of `'` in the input text will be escaped as `\\'`, so that the output can be used in a CSS string literal wrapped in single quotes.\n\n```js\ncssesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.');\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n// → \"Lorem ipsum \\\"dolor\\\" sit \\\\'amet\\\\' etc.\"\n\ncssesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single'\n});\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n// → \"Lorem ipsum \\\"dolor\\\" sit \\\\'amet\\\\' etc.\"\n```\n\nIf you want to use the output as part of a CSS string literal wrapped in double quotes, set the `quotes` option to `'double'`.\n\n```js\ncssesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double'\n});\n// → 'Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.'\n// → \"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit 'amet' etc.\"\n```\n\n#### `wrap`\n\nThe `wrap` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output will be a valid CSS string literal wrapped in quotes. The type of quotes can be specified through the `quotes` setting.\n\n```js\ncssesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single',\n 'wrap': true\n});\n// → '\\'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.\\''\n// → \"\\'Lorem ipsum \\\"dolor\\\" sit \\\\\\'amet\\\\\\' etc.\\'\"\n\ncssesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double',\n 'wrap': true\n});\n// → '\"Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.\"'\n// → \"\\\"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit \\'amet\\' etc.\\\"\"\n```\n\n#### `escapeEverything`\n\nThe `escapeEverything` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, all the symbols in the output will be escaped, even printable ASCII symbols.\n\n```js\ncssesc('lolwat\"foo\\'bar', {\n 'escapeEverything': true\n});\n// → '\\\\6C\\\\6F\\\\6C\\\\77\\\\61\\\\74\\\\\"\\\\66\\\\6F\\\\6F\\\\\\'\\\\62\\\\61\\\\72'\n// → \"\\\\6C\\\\6F\\\\6C\\\\77\\\\61\\\\74\\\\\\\"\\\\66\\\\6F\\\\6F\\\\'\\\\62\\\\61\\\\72\"\n```\n\n#### Overriding the default options globally\n\nThe global default settings can be overridden by modifying the `css.options` object. This saves you from passing in an `options` object for every call to `encode` if you want to use the non-default setting.\n\n```js\n// Read the global default setting for `escapeEverything`:\ncssesc.options.escapeEverything;\n// → `false` by default\n\n// Override the global default setting for `escapeEverything`:\ncssesc.options.escapeEverything = true;\n\n// Using the global default setting for `escapeEverything`, which is now `true`:\ncssesc('foo © bar ≠ baz 𝌆 qux');\n// → '\\\\66\\\\6F\\\\6F\\\\ \\\\A9\\\\ \\\\62\\\\61\\\\72\\\\ \\\\2260\\\\ \\\\62\\\\61\\\\7A\\\\ \\\\1D306\\\\ \\\\71\\\\75\\\\78'\n```\n\n### `cssesc.version`\n\nA string representing the semantic version number.\n\n### Using the `cssesc` binary\n\nTo use the `cssesc` binary in your shell, simply install cssesc globally using npm:\n\n```bash\nnpm install -g cssesc\n```\n\nAfter that you will be able to escape text for use in CSS strings or identifiers from the command line:\n\n```bash\n$ cssesc 'föo ♥ bår 𝌆 baz'\nf\\F6o \\2665 b\\E5r \\1D306 baz\n```\n\nIf the output needs to be a CSS identifier rather than part of a string literal, use the `-i`/`--identifier` option:\n\n```bash\n$ cssesc --identifier 'föo ♥ bår 𝌆 baz'\nf\\F6o\\ \\2665\\ b\\E5r\\ \\1D306\\ baz\n```\n\nSee `cssesc --help` for the full list of options.\n\n## Support\n\nThis library supports the Node.js and browser versions mentioned in [`.babelrc`](https://github.com/mathiasbynens/cssesc/blob/master/.babelrc). For a version that supports a wider variety of legacy browsers and environments out-of-the-box, [see v0.1.0](https://github.com/mathiasbynens/cssesc/releases/tag/v0.1.0).\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\nThis library is available under the [MIT](https://mths.be/mit) license.\n# json-schema-traverse\nTraverse JSON Schema passing each schema object to callback\n\n[](https://travis-ci.org/epoberezkin/json-schema-traverse)\n[](https://www.npmjs.com/package/json-schema-traverse)\n[](https://coveralls.io/github/epoberezkin/json-schema-traverse?branch=master)\n\n## Install\n\n```\nnpm install json-schema-traverse\n```\n\n## Usage\n\n```javascript\nconst traverse = require('json-schema-traverse');\nconst schema = {\n properties: {\n foo: {type: 'string'},\n bar: {type: 'integer'}\n }\n};\n\ntraverse(schema, {cb});\n// cb is called 3 times with:\n// 1. root schema\n// 2. {type: 'string'}\n// 3. {type: 'integer'}\n\n// Or:\n\ntraverse(schema, {cb: {pre, post}});\n// pre is called 3 times with:\n// 1. root schema\n// 2. {type: 'string'}\n// 3. {type: 'integer'}\n//\n// post is called 3 times with:\n// 1. {type: 'string'}\n// 2. {type: 'integer'}\n// 3. root schema\n\n```\n\nCallback function `cb` is called for each schema object (not including draft-06 boolean schemas), including the root schema, in pre-order traversal. Schema references ($ref) are not resolved, they are passed as is. Alternatively, you can pass a `{pre, post}` object as `cb`, and then `pre` will be called before traversing child elements, and `post` will be called after all child elements have been traversed.\n\nCallback is passed these parameters:\n\n- _schema_: the current schema object\n- _JSON pointer_: from the root schema to the current schema object\n- _root schema_: the schema passed to `traverse` object\n- _parent JSON pointer_: from the root schema to the parent schema object (see below)\n- _parent keyword_: the keyword inside which this schema appears (e.g. `properties`, `anyOf`, etc.)\n- _parent schema_: not necessarily parent object/array; in the example above the parent schema for `{type: 'string'}` is the root schema\n- _index/property_: index or property name in the array/object containing multiple schemas; in the example above for `{type: 'string'}` the property name is `'foo'`\n\n## Traverse objects in all unknown keywords\n\n```javascript\nconst traverse = require('json-schema-traverse');\nconst schema = {\n mySchema: {\n minimum: 1,\n maximum: 2\n }\n};\n\ntraverse(schema, {allKeys: true, cb});\n// cb is called 2 times with:\n// 1. root schema\n// 2. mySchema\n```\n\nWithout option `allKeys: true` callback will be called only with root schema.\n\n## License\n\n[MIT](https://github.com/epoberezkin/json-schema-traverse/blob/master/LICENSE)\n# define-property [](http://badge.fury.io/js/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i define-property --save\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## Related projects\n\n* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)\n* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._\n# map-visit [](https://www.npmjs.com/package/map-visit) [](https://npmjs.org/package/map-visit) [](https://npmjs.org/package/map-visit) [](https://travis-ci.org/jonschlinkert/map-visit)\n\n> Map `visit` over an array of objects.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save map-visit\n```\n\n## Usage\n\n```js\nvar mapVisit = require('map-visit');\n```\n\n## What does this do?\n\n**Assign/Merge/Extend vs. Visit**\n\nLet's say you want to add a `set` method to your application that will:\n\n* set key-value pairs on a `data` object\n* extend objects onto the `data` object\n* extend arrays of objects onto the data object\n\n**Example using `extend`**\n\nHere is one way to accomplish this using Lo-Dash's `extend` (comparable to `Object.assign`):\n\n```js\nvar _ = require('lodash');\n\nvar obj = {\n data: {},\n set: function (key, value) {\n if (Array.isArray(key)) {\n _.extend.apply(_, [obj.data].concat(key));\n } else if (typeof key === 'object') {\n _.extend(obj.data, key);\n } else {\n obj.data[key] = value;\n }\n }\n};\n\nobj.set('a', 'a');\nobj.set([{b: 'b'}, {c: 'c'}]);\nobj.set({d: {e: 'f'}});\n\nconsole.log(obj.data);\n//=> {a: 'a', b: 'b', c: 'c', d: { e: 'f' }}\n```\n\nThe above approach works fine for most use cases. However, **if you also want to emit an event** each time a property is added to the `data` object, or you want more control over what happens as the object is extended, a better approach would be to use `visit`.\n\n**Example using `visit`**\n\nIn this approach:\n\n* when an array is passed to `set`, the `mapVisit` library calls the `set` method on each object in the array.\n* when an object is passed, `visit` calls `set` on each property in the object.\n\nAs a result, the `data` event will be emitted every time a property is added to `data` (events are just an example, you can use this approach to perform any necessary logic every time the method is called).\n\n```js\nvar mapVisit = require('map-visit');\nvar visit = require('object-visit');\n\nvar obj = {\n data: {},\n set: function (key, value) {\n if (Array.isArray(key)) {\n mapVisit(obj, 'set', key);\n } else if (typeof key === 'object') {\n visit(obj, 'set', key);\n } else {\n // simulate an event-emitter\n console.log('emit', key, value);\n obj.data[key] = value;\n }\n }\n};\n\nobj.set('a', 'a');\nobj.set([{b: 'b'}, {c: 'c'}]);\nobj.set({d: {e: 'f'}});\nobj.set({g: 'h', i: 'j', k: 'l'});\n\nconsole.log(obj.data);\n//=> {a: 'a', b: 'b', c: 'c', d: { e: 'f' }, g: 'h', i: 'j', k: 'l'}\n\n// events would look something like:\n// emit a a\n// emit b b\n// emit c c\n// emit d { e: 'f' }\n// emit g h\n// emit i j\n// emit k l\n```\n\n## About\n\n### Related projects\n\n* [collection-visit](https://www.npmjs.com/package/collection-visit): Visit a method over the items in an object, or map visit over the objects… [more](https://github.com/jonschlinkert/collection-visit) | [homepage](https://github.com/jonschlinkert/collection-visit \"Visit a method over the items in an object, or map visit over the objects in an array.\")\n* [object-visit](https://www.npmjs.com/package/object-visit): Call a specified method on each value in the given object. | [homepage](https://github.com/jonschlinkert/object-visit \"Call a specified method on each value in the given object.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 15 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 7 | [doowb](https://github.com/doowb) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 09, 2017._\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n<!--\n -- This file is auto-generated from README_js.md. Changes should be made there.\n -->\n\n# uuid [](http://travis-ci.org/kelektiv/node-uuid) #\n\nSimple, fast generation of [RFC4122](http://www.ietf.org/rfc/rfc4122.txt) UUIDS.\n\nFeatures:\n\n* Support for version 1, 3, 4 and 5 UUIDs\n* Cross-platform\n* Uses cryptographically-strong random number APIs (when available)\n* Zero-dependency, small footprint (... but not [this small](https://gist.github.com/982883))\n\n[**Deprecation warning**: The use of `require('uuid')` is deprecated and will not be\nsupported after version 3.x of this module. Instead, use `require('uuid/[v1|v3|v4|v5]')` as shown in the examples below.]\n\n## Quickstart - CommonJS (Recommended)\n\n```shell\nnpm install uuid\n```\n\nThen generate your uuid version of choice ...\n\nVersion 1 (timestamp):\n\n```javascript\nconst uuidv1 = require('uuid/v1');\nuuidv1(); // ⇨ '45745c60-7b1a-11e8-9c9c-2d42b21b1a3e'\n\n```\n\nVersion 3 (namespace):\n\n```javascript\nconst uuidv3 = require('uuid/v3');\n\n// ... using predefined DNS namespace (for domain names)\nuuidv3('hello.example.com', uuidv3.DNS); // ⇨ '9125a8dc-52ee-365b-a5aa-81b0b3681cf6'\n\n// ... using predefined URL namespace (for, well, URLs)\nuuidv3('http://example.com/hello', uuidv3.URL); // ⇨ 'c6235813-3ba4-3801-ae84-e0a6ebb7d138'\n\n// ... using a custom namespace\n//\n// Note: Custom namespaces should be a UUID string specific to your application!\n// E.g. the one here was generated using this modules `uuid` CLI.\nconst MY_NAMESPACE = '1b671a64-40d5-491e-99b0-da01ff1f3341';\nuuidv3('Hello, World!', MY_NAMESPACE); // ⇨ 'e8b5a51d-11c8-3310-a6ab-367563f20686'\n\n```\n\nVersion 4 (random):\n\n```javascript\nconst uuidv4 = require('uuid/v4');\nuuidv4(); // ⇨ '10ba038e-48da-487b-96e8-8d3b99b6d18a'\n\n```\n\nVersion 5 (namespace):\n\n```javascript\nconst uuidv5 = require('uuid/v5');\n\n// ... using predefined DNS namespace (for domain names)\nuuidv5('hello.example.com', uuidv5.DNS); // ⇨ 'fdda765f-fc57-5604-a269-52a7df8164ec'\n\n// ... using predefined URL namespace (for, well, URLs)\nuuidv5('http://example.com/hello', uuidv5.URL); // ⇨ '3bbcee75-cecc-5b56-8031-b6641c1ed1f1'\n\n// ... using a custom namespace\n//\n// Note: Custom namespaces should be a UUID string specific to your application!\n// E.g. the one here was generated using this modules `uuid` CLI.\nconst MY_NAMESPACE = '1b671a64-40d5-491e-99b0-da01ff1f3341';\nuuidv5('Hello, World!', MY_NAMESPACE); // ⇨ '630eb68f-e0fa-5ecc-887a-7c7a62614681'\n\n```\n\n## Quickstart - Browser-ready Versions\n\nBrowser-ready versions of this module are available via [wzrd.in](https://github.com/jfhbrook/wzrd.in).\n\nFor version 1 uuids:\n\n```html\n<script src=\"http://wzrd.in/standalone/uuid%2Fv1@latest\"></script>\n<script>\nuuidv1(); // -> v1 UUID\n</script>\n```\n\nFor version 3 uuids:\n\n```html\n<script src=\"http://wzrd.in/standalone/uuid%2Fv3@latest\"></script>\n<script>\nuuidv3('http://example.com/hello', uuidv3.URL); // -> v3 UUID\n</script>\n```\n\nFor version 4 uuids:\n\n```html\n<script src=\"http://wzrd.in/standalone/uuid%2Fv4@latest\"></script>\n<script>\nuuidv4(); // -> v4 UUID\n</script>\n```\n\nFor version 5 uuids:\n\n```html\n<script src=\"http://wzrd.in/standalone/uuid%2Fv5@latest\"></script>\n<script>\nuuidv5('http://example.com/hello', uuidv5.URL); // -> v5 UUID\n</script>\n```\n\n## API\n\n### Version 1\n\n```javascript\nconst uuidv1 = require('uuid/v1');\n\n// Incantations\nuuidv1();\nuuidv1(options);\nuuidv1(options, buffer, offset);\n```\n\nGenerate and return a RFC4122 v1 (timestamp-based) UUID.\n\n* `options` - (Object) Optional uuid state to apply. Properties may include:\n\n * `node` - (Array) Node id as Array of 6 bytes (per 4.1.6). Default: Randomly generated ID. See note 1.\n * `clockseq` - (Number between 0 - 0x3fff) RFC clock sequence. Default: An internally maintained clockseq is used.\n * `msecs` - (Number) Time in milliseconds since unix Epoch. Default: The current time is used.\n * `nsecs` - (Number between 0-9999) additional time, in 100-nanosecond units. Ignored if `msecs` is unspecified. Default: internal uuid counter is used, as per 4.2.1.2.\n\n* `buffer` - (Array | Buffer) Array or buffer where UUID bytes are to be written.\n* `offset` - (Number) Starting index in `buffer` at which to begin writing.\n\nReturns `buffer`, if specified, otherwise the string form of the UUID\n\nNote: The <node> id is generated guaranteed to stay constant for the lifetime of the current JS runtime. (Future versions of this module may use persistent storage mechanisms to extend this guarantee.)\n\nExample: Generate string UUID with fully-specified options\n\n```javascript\nconst v1options = {\n node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab],\n clockseq: 0x1234,\n msecs: new Date('2011-11-01').getTime(),\n nsecs: 5678\n};\nuuidv1(v1options); // ⇨ '710b962e-041c-11e1-9234-0123456789ab'\n\n```\n\nExample: In-place generation of two binary IDs\n\n```javascript\n// Generate two ids in an array\nconst arr = new Array();\nuuidv1(null, arr, 0); // ⇨ [ 69, 117, 109, 208, 123, 26, 17, 232, 146, 52, 45, 66, 178, 27, 26, 62 ]\nuuidv1(null, arr, 16); // ⇨ [ 69, 117, 109, 208, 123, 26, 17, 232, 146, 52, 45, 66, 178, 27, 26, 62, 69, 117, 109, 209, 123, 26, 17, 232, 146, 52, 45, 66, 178, 27, 26, 62 ]\n\n```\n\n### Version 3\n\n```javascript\nconst uuidv3 = require('uuid/v3');\n\n// Incantations\nuuidv3(name, namespace);\nuuidv3(name, namespace, buffer);\nuuidv3(name, namespace, buffer, offset);\n```\n\nGenerate and return a RFC4122 v3 UUID.\n\n* `name` - (String | Array[]) \"name\" to create UUID with\n* `namespace` - (String | Array[]) \"namespace\" UUID either as a String or Array[16] of byte values\n* `buffer` - (Array | Buffer) Array or buffer where UUID bytes are to be written.\n* `offset` - (Number) Starting index in `buffer` at which to begin writing. Default = 0\n\nReturns `buffer`, if specified, otherwise the string form of the UUID\n\nExample:\n\n```javascript\nuuidv3('hello world', MY_NAMESPACE); // ⇨ '042ffd34-d989-321c-ad06-f60826172424'\n\n```\n\n### Version 4\n\n```javascript\nconst uuidv4 = require('uuid/v4')\n\n// Incantations\nuuidv4();\nuuidv4(options);\nuuidv4(options, buffer, offset);\n```\n\nGenerate and return a RFC4122 v4 UUID.\n\n* `options` - (Object) Optional uuid state to apply. Properties may include:\n * `random` - (Number[16]) Array of 16 numbers (0-255) to use in place of randomly generated values\n * `rng` - (Function) Random # generator function that returns an Array[16] of byte values (0-255)\n* `buffer` - (Array | Buffer) Array or buffer where UUID bytes are to be written.\n* `offset` - (Number) Starting index in `buffer` at which to begin writing.\n\nReturns `buffer`, if specified, otherwise the string form of the UUID\n\nExample: Generate string UUID with predefined `random` values\n\n```javascript\nconst v4options = {\n random: [\n 0x10, 0x91, 0x56, 0xbe, 0xc4, 0xfb, 0xc1, 0xea,\n 0x71, 0xb4, 0xef, 0xe1, 0x67, 0x1c, 0x58, 0x36\n ]\n};\nuuidv4(v4options); // ⇨ '109156be-c4fb-41ea-b1b4-efe1671c5836'\n\n```\n\nExample: Generate two IDs in a single buffer\n\n```javascript\nconst buffer = new Array();\nuuidv4(null, buffer, 0); // ⇨ [ 54, 122, 218, 70, 45, 70, 65, 24, 171, 53, 95, 130, 83, 195, 242, 45 ]\nuuidv4(null, buffer, 16); // ⇨ [ 54, 122, 218, 70, 45, 70, 65, 24, 171, 53, 95, 130, 83, 195, 242, 45, 108, 204, 255, 103, 171, 86, 76, 94, 178, 225, 188, 236, 150, 20, 151, 87 ]\n\n```\n\n### Version 5\n\n```javascript\nconst uuidv5 = require('uuid/v5');\n\n// Incantations\nuuidv5(name, namespace);\nuuidv5(name, namespace, buffer);\nuuidv5(name, namespace, buffer, offset);\n```\n\nGenerate and return a RFC4122 v5 UUID.\n\n* `name` - (String | Array[]) \"name\" to create UUID with\n* `namespace` - (String | Array[]) \"namespace\" UUID either as a String or Array[16] of byte values\n* `buffer` - (Array | Buffer) Array or buffer where UUID bytes are to be written.\n* `offset` - (Number) Starting index in `buffer` at which to begin writing. Default = 0\n\nReturns `buffer`, if specified, otherwise the string form of the UUID\n\nExample:\n\n```javascript\nuuidv5('hello world', MY_NAMESPACE); // ⇨ '9f282611-e0fd-5650-8953-89c8e342da0b'\n\n```\n\n## Command Line\n\nUUIDs can be generated from the command line with the `uuid` command.\n\n```shell\n$ uuid\nddeb27fb-d9a0-4624-be4d-4615062daed4\n\n$ uuid v1\n02d37060-d446-11e7-a9fa-7bdae751ebe1\n```\n\nType `uuid --help` for usage details\n\n## Testing\n\n```shell\nnpm test\n```\n\n----\nMarkdown generated from [README_js.md](README_js.md) by [](https://github.com/broofa/runmd)\n# posix-character-classes [](https://www.npmjs.com/package/posix-character-classes) [](https://npmjs.org/package/posix-character-classes) [](https://npmjs.org/package/posix-character-classes) [](https://travis-ci.org/jonschlinkert/posix-character-classes)\n\n> POSIX character classes for creating regular expressions.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save posix-character-classes\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add posix-character-classes\n```\n\n## Usage\n\n```js\nvar posix = require('posix-character-classes');\nconsole.log(posix.alpha);\n//=> 'A-Za-z'\n```\n\n## POSIX Character classes\n\nThe POSIX standard supports the following classes or categories of charactersh (note that classes must be defined within brackets)<sup class=\"footnote-ref\"><a href=\"#fn1\" id=\"fnref1\">[1]</a></sup>:\n\n| **POSIX class** | **Equivalent to** | **Matches** | \n| --- | --- | --- |\n| `[:alnum:]` | `[A-Za-z0-9]` | digits, uppercase and lowercase letters |\n| `[:alpha:]` | `[A-Za-z]` | upper- and lowercase letters |\n| `[:ascii:]` | `[\\x00-\\x7F]` | ASCII characters |\n| `[:blank:]` | `[ \\t]` | space and TAB characters only |\n| `[:cntrl:]` | `[\\x00-\\x1F\\x7F]` | Control characters |\n| `[:digit:]` | `[0-9]` | digits |\n| `[:graph:]` | `[^[:cntrl:]]` | graphic characters (all characters which have graphic representation) |\n| `[:lower:]` | `[a-z]` | lowercase letters |\n| `[:print:]` | `[[:graph] ]` | graphic characters and space |\n| `[:punct:]` | ``[-!\"#$%&'()*+,./:;<=>?@[]^_`{ | }~]`` | all punctuation characters (all graphic characters except letters and digits) |\n| `[:space:]` | `[ \\t\\n\\r\\f\\v]` | all blank (whitespace) characters, including spaces, tabs, new lines, carriage returns, form feeds, and vertical tabs |\n| `[:upper:]` | `[A-Z]` | uppercase letters |\n| `[:word:]` | `[A-Za-z0-9_]` | word characters |\n| `[:xdigit:]` | `[0-9A-Fa-f]` | hexadecimal digits |\n\n## Examples\n\n* `a[[:digit:]]b` matches `a0b`, `a1b`, ..., `a9b`.\n* `a[:digit:]b` is invalid, character classes must be enclosed in brackets\n* `[[:digit:]abc]` matches any digit, as well as `a`, `b`, and `c`.\n* `[abc[:digit:]]` is the same as the previous, matching any digit, as well as `a`, `b`, and `c`\n* `[^ABZ[:lower:]]` matches any character except lowercase letters, `A`, `B`, and `Z`.\n\n## About\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 20, 2017._\n\n<hr class=\"footnotes-sep\">\n<section class=\"footnotes\">\n<ol class=\"footnotes-list\">\n<li id=\"fn1\" class=\"footnote-item\">table and examples are based on the WikiBooks page for [Regular Expressions/POSIX Basic Regular Expressions](https://en.wikibooks.org/wiki/Regular_Expressions/POSIX_Basic_Regular_Expressions), which is available under the [Creative Commons Attribution-ShareAlike License](https://creativecommons.org/licenses/by-sa/3.0/). <a href=\"#fnref1\" class=\"footnote-backref\">↩</a>\n\n</li>\n</ol>\n</section>\n# extglob [](https://www.npmjs.com/package/extglob) [](https://npmjs.org/package/extglob) [](https://npmjs.org/package/extglob) [](https://travis-ci.org/micromatch/extglob) [](https://ci.appveyor.com/project/micromatch/extglob)\n\n> Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save extglob\n```\n\n* Convert an extglob string to a regex-compatible string.\n* More complete (and correct) support than [minimatch](https://github.com/isaacs/minimatch) (minimatch fails a large percentage of the extglob tests)\n* Handles [negation patterns](#extglob-patterns)\n* Handles [nested patterns](#extglob-patterns)\n* Organized code base, easy to maintain and make changes when edge cases arise\n* As you can see by the [benchmarks](#benchmarks), extglob doesn't pay with speed for it's completeness, accuracy and quality.\n\n**Heads up!**: This library only supports extglobs, to handle full glob patterns and other extended globbing features use [micromatch](https://github.com/jonschlinkert/micromatch) instead.\n\n## Usage\n\nThe main export is a function that takes a string and options, and returns an object with the parsed AST and the compiled `.output`, which is a regex-compatible string that can be used for matching.\n\n```js\nvar extglob = require('extglob');\nconsole.log(extglob('!(xyz)*.js'));\n```\n\n## Extglob cheatsheet\n\nExtended globbing patterns can be defined as follows (as described by the [bash man page](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html)):\n\n| **pattern** | **regex equivalent** | **description** | \n| --- | --- | --- |\n| `?(pattern-list)` | `(...|...)?` | Matches zero or one occurrence of the given pattern(s) |\n| `*(pattern-list)` | `(...|...)*` | Matches zero or more occurrences of the given pattern(s) |\n| `+(pattern-list)` | `(...|...)+` | Matches one or more occurrences of the given pattern(s) |\n| `@(pattern-list)` | `(...|...)` <sup class=\"footnote-ref\"><a href=\"#fn1\" id=\"fnref1\">[1]</a></sup> | Matches one of the given pattern(s) |\n| `!(pattern-list)` | N/A | Matches anything except one of the given pattern(s) |\n\n## API\n\n### [extglob](index.js#L36)\n\nConvert the given `extglob` pattern into a regex-compatible string. Returns an object with the compiled result and the parsed AST.\n\n**Params**\n\n* `pattern` **{String}**\n* `options` **{Object}**\n* `returns` **{String}**\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nconsole.log(extglob('*.!(*a)'));\n//=> '(?!\\\\.)[^/]*?\\\\.(?!(?!\\\\.)[^/]*?a\\\\b).*?'\n```\n\n### [.match](index.js#L56)\n\nTakes an array of strings and an extglob pattern and returns a new array that contains only the strings that match the pattern.\n\n**Params**\n\n* `list` **{Array}**: Array of strings to match\n* `pattern` **{String}**: Extglob pattern\n* `options` **{Object}**\n* `returns` **{Array}**: Returns an array of matches\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nconsole.log(extglob.match(['a.a', 'a.b', 'a.c'], '*.!(*a)'));\n//=> ['a.b', 'a.c']\n```\n\n### [.isMatch](index.js#L111)\n\nReturns true if the specified `string` matches the given extglob `pattern`.\n\n**Params**\n\n* `string` **{String}**: String to match\n* `pattern` **{String}**: Extglob pattern\n* `options` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar extglob = require('extglob');\n\nconsole.log(extglob.isMatch('a.a', '*.!(*a)'));\n//=> false\nconsole.log(extglob.isMatch('a.b', '*.!(*a)'));\n//=> true\n```\n\n### [.contains](index.js#L150)\n\nReturns true if the given `string` contains the given pattern. Similar to `.isMatch` but the pattern can match any part of the string.\n\n**Params**\n\n* `str` **{String}**: The string to match.\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `options` **{Object}**\n* `returns` **{Boolean}**: Returns true if the patter matches any part of `str`.\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nconsole.log(extglob.contains('aa/bb/cc', '*b'));\n//=> true\nconsole.log(extglob.contains('aa/bb/cc', '*d'));\n//=> false\n```\n\n### [.matcher](index.js#L184)\n\nTakes an extglob pattern and returns a matcher function. The returned function takes the string to match as its only argument.\n\n**Params**\n\n* `pattern` **{String}**: Extglob pattern\n* `options` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nvar isMatch = extglob.matcher('*.!(*a)');\n\nconsole.log(isMatch('a.a'));\n//=> false\nconsole.log(isMatch('a.b'));\n//=> true\n```\n\n### [.create](index.js#L214)\n\nConvert the given `extglob` pattern into a regex-compatible string. Returns an object with the compiled result and the parsed AST.\n\n**Params**\n\n* `str` **{String}**\n* `options` **{Object}**\n* `returns` **{String}**\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nconsole.log(extglob.create('*.!(*a)').output);\n//=> '(?!\\\\.)[^/]*?\\\\.(?!(?!\\\\.)[^/]*?a\\\\b).*?'\n```\n\n### [.capture](index.js#L248)\n\nReturns an array of matches captured by `pattern` in `string`, or `null` if the pattern did not match.\n\n**Params**\n\n* `pattern` **{String}**: Glob pattern to use for matching.\n* `string` **{String}**: String to match\n* `options` **{Object}**: See available [options](#options) for changing how matches are performed\n* `returns` **{Boolean}**: Returns an array of captures if the string matches the glob pattern, otherwise `null`.\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nextglob.capture(pattern, string[, options]);\n\nconsole.log(extglob.capture('test/*.js', 'test/foo.js'));\n//=> ['foo']\nconsole.log(extglob.capture('test/*.js', 'foo/bar.css'));\n//=> null\n```\n\n### [.makeRe](index.js#L281)\n\nCreate a regular expression from the given `pattern` and `options`.\n\n**Params**\n\n* `pattern` **{String}**: The pattern to convert to regex.\n* `options` **{Object}**\n* `returns` **{RegExp}**\n\n**Example**\n\n```js\nvar extglob = require('extglob');\nvar re = extglob.makeRe('*.!(*a)');\nconsole.log(re);\n//=> /^[^\\/]*?\\.(?![^\\/]*?a)[^\\/]*?$/\n```\n\n## Options\n\nAvailable options are based on the options from Bash (and the option names used in bash).\n\n### options.nullglob\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nWhen enabled, the pattern itself will be returned when no matches are found.\n\n### options.nonull\n\nAlias for [options.nullglob](#optionsnullglob), included for parity with minimatch.\n\n### options.cache\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nFunctions are memoized based on the given glob patterns and options. Disable memoization by setting `options.cache` to false.\n\n### options.failglob\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nThrow an error is no matches are found.\n\n## Benchmarks\n\nLast run on December 21, 2017\n\n```sh\n# negation-nested (49 bytes)\n extglob x 2,228,255 ops/sec ±0.98% (89 runs sampled)\n minimatch x 207,875 ops/sec ±0.61% (91 runs sampled)\n\n fastest is extglob (by 1072% avg)\n\n# negation-simple (43 bytes)\n extglob x 2,205,668 ops/sec ±1.00% (91 runs sampled)\n minimatch x 311,923 ops/sec ±1.25% (91 runs sampled)\n\n fastest is extglob (by 707% avg)\n\n# range-false (57 bytes)\n extglob x 2,263,877 ops/sec ±0.40% (94 runs sampled)\n minimatch x 271,372 ops/sec ±1.02% (91 runs sampled)\n\n fastest is extglob (by 834% avg)\n\n# range-true (56 bytes)\n extglob x 2,161,891 ops/sec ±0.41% (92 runs sampled)\n minimatch x 268,265 ops/sec ±1.17% (91 runs sampled)\n\n fastest is extglob (by 806% avg)\n\n# star-simple (46 bytes)\n extglob x 2,211,081 ops/sec ±0.49% (92 runs sampled)\n minimatch x 343,319 ops/sec ±0.59% (91 runs sampled)\n\n fastest is extglob (by 644% avg)\n\n```\n\n## Differences from Bash\n\nThis library has complete parity with Bash 4.3 with only a couple of minor differences.\n\n* In some cases Bash returns true if the given string \"contains\" the pattern, whereas this library returns true if the string is an exact match for the pattern. You can relax this by setting `options.contains` to true.\n* This library is more accurate than Bash and thus does not fail some of the tests that Bash 4.3 still lists as failing in their unit tests\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [braces](https://www.npmjs.com/package/braces): Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support… [more](https://github.com/micromatch/braces) | [homepage](https://github.com/micromatch/braces \"Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.\")\n* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets \"Expand POSIX bracket expressions (character classes) in glob patterns.\")\n* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range \"Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used by [micromatch].\")\n* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range \"Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 49 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [isiahmeadows](https://github.com/isiahmeadows) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [devongovett](https://github.com/devongovett) |\n| 1 | [mjbvz](https://github.com/mjbvz) |\n| 1 | [shinnn](https://github.com/shinnn) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on December 21, 2017._\n\n<hr class=\"footnotes-sep\">\n<section class=\"footnotes\">\n<ol class=\"footnotes-list\">\n<li id=\"fn1\" class=\"footnote-item\">`@` isn \"'t a RegEx character.\" <a href=\"#fnref1\" class=\"footnote-backref\">↩</a>\n\n</li>\n</ol>\n</section>\nPort of the OpenBSD `bcrypt_pbkdf` function to pure Javascript. `npm`-ified\nversion of [Devi Mandiri's port](https://github.com/devi/tmp/blob/master/js/bcrypt_pbkdf.js),\nwith some minor performance improvements. The code is copied verbatim (and\nun-styled) from Devi's work.\n\nThis product includes software developed by Niels Provos.\n\n## API\n\n### `bcrypt_pbkdf.pbkdf(pass, passlen, salt, saltlen, key, keylen, rounds)`\n\nDerive a cryptographic key of arbitrary length from a given password and salt,\nusing the OpenBSD `bcrypt_pbkdf` function. This is a combination of Blowfish and\nSHA-512.\n\nSee [this article](http://www.tedunangst.com/flak/post/bcrypt-pbkdf) for\nfurther information.\n\nParameters:\n\n * `pass`, a Uint8Array of length `passlen`\n * `passlen`, an integer Number\n * `salt`, a Uint8Array of length `saltlen`\n * `saltlen`, an integer Number\n * `key`, a Uint8Array of length `keylen`, will be filled with output\n * `keylen`, an integer Number\n * `rounds`, an integer Number, number of rounds of the PBKDF to run\n\n### `bcrypt_pbkdf.hash(sha2pass, sha2salt, out)`\n\nCalculate a Blowfish hash, given SHA2-512 output of a password and salt. Used as\npart of the inner round function in the PBKDF.\n\nParameters:\n\n * `sha2pass`, a Uint8Array of length 64\n * `sha2salt`, a Uint8Array of length 64\n * `out`, a Uint8Array of length 32, will be filled with output\n\n## License\n\nThis source form is a 1:1 port from the OpenBSD `blowfish.c` and `bcrypt_pbkdf.c`.\nAs a result, it retains the original copyright and license. The two files are\nunder slightly different (but compatible) licenses, and are here combined in\none file. For each of the full license texts see `LICENSE`.\n# origin(al)\n\n[](http://unshift.io)[](http://browsenpm.org/package/original)[](https://travis-ci.org/unshiftio/original)[](https://david-dm.org/unshiftio/original)[](https://coveralls.io/r/unshiftio/original?branch=master)[](http://webchat.freenode.net/?channels=unshift)\n\nOriginal generates the origin URL for a given URL or URL object. In addition to\nthat it also comes with a simple `same` function to check if two URL's have the\nsame origin.\n\n## Install\n\nThis module is browserify and node compatible and is therefor release in the npm\nregistry and can be installed using:\n\n```\nnpm install --save original\n```\n\n## Usage\n\nIn all the examples we assume that the module is loaded using:\n\n```js\n'use strict';\n\nvar origin = require('original');\n```\n\nTo get the origin of a given URL simply call `origin` function with any given\nURL to get origin.\n\n```js\nvar o = origin('https://google.com/foo/bar?path');\n\n// o = https://google.com\n```\n\nTo compare if two URL's share the same origin you can call the `same` method.\n\n```js\nif (origin.same('https://google.com/foo', 'https://primus.io')) {\n console.log('same');\n} else {\n console.log('guess what, google.com and primus.io are not the same origin');\n}\n```\n\nAnd that's it.\n\n## License\n\nMIT\n# xtend\n\n[![browser support][3]][4]\n\n[](http://github.com/badges/stability-badges)\n\nExtend like a boss\n\nxtend is a basic utility library which allows you to extend an object by appending all of the properties from each object in a list. When there are identical properties, the right-most property takes precedence.\n\n## Examples\n\n```js\nvar extend = require(\"xtend\")\n\n// extend returns a new object. Does not mutate arguments\nvar combination = extend({\n a: \"a\",\n b: 'c'\n}, {\n b: \"b\"\n})\n// { a: \"a\", b: \"b\" }\n```\n\n## Stability status: Locked\n\n## MIT Licenced\n\n [3]: http://ci.testling.com/Raynos/xtend.png\n [4]: http://ci.testling.com/Raynos/xtend\n# json-stringify-safe\n\nLike JSON.stringify, but doesn't throw on circular references.\n\n## Usage\n\nTakes the same arguments as `JSON.stringify`.\n\n```javascript\nvar stringify = require('json-stringify-safe');\nvar circularObj = {};\ncircularObj.circularRef = circularObj;\ncircularObj.list = [ circularObj, circularObj ];\nconsole.log(stringify(circularObj, null, 2));\n```\n\nOutput:\n\n```json\n{\n \"circularRef\": \"[Circular]\",\n \"list\": [\n \"[Circular]\",\n \"[Circular]\"\n ]\n}\n```\n\n## Details\n\n```\nstringify(obj, serializer, indent, decycler)\n```\n\nThe first three arguments are the same as to JSON.stringify. The last\nis an argument that's only used when the object has been seen already.\n\nThe default `decycler` function returns the string `'[Circular]'`.\nIf, for example, you pass in `function(k,v){}` (return nothing) then it\nwill prune cycles. If you pass in `function(k,v){ return {foo: 'bar'}}`,\nthen cyclical objects will always be represented as `{\"foo\":\"bar\"}` in\nthe result.\n\n```\nstringify.getSerialize(serializer, decycler)\n```\n\nReturns a serializer that can be used elsewhere. This is the actual\nfunction that's passed to JSON.stringify.\n\n**Note** that the function returned from `getSerialize` is stateful for now, so\ndo **not** use it more than once.\nBrowser-friendly inheritance fully compatible with standard node.js\n[inherits](http://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor).\n\nThis package exports standard `inherits` from node.js `util` module in\nnode environment, but also provides alternative browser-friendly\nimplementation through [browser\nfield](https://gist.github.com/shtylman/4339901). Alternative\nimplementation is a literal copy of standard one located in standalone\nmodule to avoid requiring of `util`. It also has a shim for old\nbrowsers with no `Object.create` support.\n\nWhile keeping you sure you are using standard `inherits`\nimplementation in node.js environment, it allows bundlers such as\n[browserify](https://github.com/substack/node-browserify) to not\ninclude full `util` package to your client code if all you need is\njust `inherits` function. It worth, because browser shim for `util`\npackage is large and `inherits` is often the single function you need\nfrom it.\n\nIt's recommended to use this package instead of\n`require('util').inherits` for any code that has chances to be used\nnot only in node.js but in browser too.\n\n## usage\n\n```js\nvar inherits = require('inherits');\n// then use exactly as the standard one\n```\n\n## note on version ~1.0\n\nVersion ~1.0 had completely different motivation and is not compatible\nneither with 2.0 nor with standard node.js `inherits`.\n\nIf you are using version ~1.0 and planning to switch to ~2.0, be\ncareful:\n\n* new version uses `super_` instead of `super` for referencing\n superclass\n* new version overwrites current prototype while old one preserves any\n existing fields on it\n# Async.js\n\n[](https://travis-ci.org/caolan/async)\n[](https://www.npmjs.org/package/async)\n[](https://coveralls.io/r/caolan/async?branch=master)\n[](https://gitter.im/caolan/async?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)\n\nAsync is a utility module which provides straight-forward, powerful functions\nfor working with asynchronous JavaScript. Although originally designed for\nuse with [Node.js](http://nodejs.org) and installable via `npm install async`,\nit can also be used directly in the browser.\n\nAsync is also installable via:\n\n- [bower](http://bower.io/): `bower install async`\n- [component](https://github.com/component/component): `component install\n caolan/async`\n- [jam](http://jamjs.org/): `jam install async`\n- [spm](http://spmjs.io/): `spm install async`\n\nAsync provides around 20 functions that include the usual 'functional'\nsuspects (`map`, `reduce`, `filter`, `each`…) as well as some common patterns\nfor asynchronous control flow (`parallel`, `series`, `waterfall`…). All these\nfunctions assume you follow the Node.js convention of providing a single\ncallback as the last argument of your `async` function.\n\n## Quick Examples\n\n```javascript\nasync.map(['file1','file2','file3'], fs.stat, function(err, results){\n // results is now an array of stats for each file\n});\n\nasync.filter(['file1','file2','file3'], fs.exists, function(results){\n // results now equals an array of the existing files\n});\n\nasync.parallel([\n function(){ ... },\n function(){ ... }\n], callback);\n\nasync.series([\n function(){ ... },\n function(){ ... }\n]);\n```\n\nThere are many more functions available so take a look at the docs below for a\nfull list. This module aims to be comprehensive, so if you feel anything is\nmissing please create a GitHub issue for it.\n\n## Common Pitfalls <sub>[(StackOverflow)](http://stackoverflow.com/questions/tagged/async.js)</sub>\n### Synchronous iteration functions\n\nIf you get an error like `RangeError: Maximum call stack size exceeded.` or other stack overflow issues when using async, you are likely using a synchronous iterator. By *synchronous* we mean a function that calls its callback on the same tick in the javascript event loop, without doing any I/O or using any timers. Calling many callbacks iteratively will quickly overflow the stack. If you run into this issue, just defer your callback with `async.setImmediate` to start a new call stack on the next tick of the event loop.\n\nThis can also arise by accident if you callback early in certain cases:\n\n```js\nasync.eachSeries(hugeArray, function iterator(item, callback) {\n if (inCache(item)) {\n callback(null, cache[item]); // if many items are cached, you'll overflow\n } else {\n doSomeIO(item, callback);\n }\n}, function done() {\n //...\n});\n```\n\nJust change it to:\n\n```js\nasync.eachSeries(hugeArray, function iterator(item, callback) {\n if (inCache(item)) {\n async.setImmediate(function () {\n callback(null, cache[item]);\n });\n } else {\n doSomeIO(item, callback);\n //...\n```\n\nAsync guards against synchronous functions in some, but not all, cases. If you are still running into stack overflows, you can defer as suggested above, or wrap functions with [`async.ensureAsync`](#ensureAsync) Functions that are asynchronous by their nature do not have this problem and don't need the extra callback deferral.\n\nIf JavaScript's event loop is still a bit nebulous, check out [this article](http://blog.carbonfive.com/2013/10/27/the-javascript-event-loop-explained/) or [this talk](http://2014.jsconf.eu/speakers/philip-roberts-what-the-heck-is-the-event-loop-anyway.html) for more detailed information about how it works.\n\n### Multiple callbacks\n\nMake sure to always `return` when calling a callback early, otherwise you will cause multiple callbacks and unpredictable behavior in many cases.\n\n```js\nasync.waterfall([\n function (callback) {\n getSomething(options, function (err, result) {\n if (err) {\n callback(new Error(\"failed getting something:\" + err.message));\n // we should return here\n }\n // since we did not return, this callback still will be called and\n // `processData` will be called twice\n callback(null, result);\n });\n },\n processData\n], done)\n```\n\nIt is always good practice to `return callback(err, result)` whenever a callback call is not the last statement of a function.\n\n### Binding a context to an iterator\n\nThis section is really about `bind`, not about `async`. If you are wondering how to\nmake `async` execute your iterators in a given context, or are confused as to why\na method of another library isn't working as an iterator, study this example:\n\n```js\n// Here is a simple object with an (unnecessarily roundabout) squaring method\nvar AsyncSquaringLibrary = {\n squareExponent: 2,\n square: function(number, callback){\n var result = Math.pow(number, this.squareExponent);\n setTimeout(function(){\n callback(null, result);\n }, 200);\n }\n};\n\nasync.map([1, 2, 3], AsyncSquaringLibrary.square, function(err, result){\n // result is [NaN, NaN, NaN]\n // This fails because the `this.squareExponent` expression in the square\n // function is not evaluated in the context of AsyncSquaringLibrary, and is\n // therefore undefined.\n});\n\nasync.map([1, 2, 3], AsyncSquaringLibrary.square.bind(AsyncSquaringLibrary), function(err, result){\n // result is [1, 4, 9]\n // With the help of bind we can attach a context to the iterator before\n // passing it to async. Now the square function will be executed in its\n // 'home' AsyncSquaringLibrary context and the value of `this.squareExponent`\n // will be as expected.\n});\n```\n\n## Download\n\nThe source is available for download from\n[GitHub](https://github.com/caolan/async/blob/master/lib/async.js).\nAlternatively, you can install using Node Package Manager (`npm`):\n\n npm install async\n\nAs well as using Bower:\n\n bower install async\n\n__Development:__ [async.js](https://github.com/caolan/async/raw/master/lib/async.js) - 29.6kb Uncompressed\n\n## In the Browser\n\nSo far it's been tested in IE6, IE7, IE8, FF3.6 and Chrome 5.\n\nUsage:\n\n```html\n<script type=\"text/javascript\" src=\"async.js\"></script>\n<script type=\"text/javascript\">\n\n async.map(data, asyncProcess, function(err, results){\n alert(results);\n });\n\n</script>\n```\n\n## Documentation\n\nSome functions are also available in the following forms:\n* `<name>Series` - the same as `<name>` but runs only a single async operation at a time\n* `<name>Limit` - the same as `<name>` but runs a maximum of `limit` async operations at a time\n\n### Collections\n\n* [`each`](#each), `eachSeries`, `eachLimit`\n* [`forEachOf`](#forEachOf), `forEachOfSeries`, `forEachOfLimit`\n* [`map`](#map), `mapSeries`, `mapLimit`\n* [`filter`](#filter), `filterSeries`, `filterLimit`\n* [`reject`](#reject), `rejectSeries`, `rejectLimit`\n* [`reduce`](#reduce), [`reduceRight`](#reduceRight)\n* [`detect`](#detect), `detectSeries`, `detectLimit`\n* [`sortBy`](#sortBy)\n* [`some`](#some), `someLimit`\n* [`every`](#every), `everyLimit`\n* [`concat`](#concat), `concatSeries`\n\n### Control Flow\n\n* [`series`](#seriestasks-callback)\n* [`parallel`](#parallel), `parallelLimit`\n* [`whilst`](#whilst), [`doWhilst`](#doWhilst)\n* [`until`](#until), [`doUntil`](#doUntil)\n* [`during`](#during), [`doDuring`](#doDuring)\n* [`forever`](#forever)\n* [`waterfall`](#waterfall)\n* [`compose`](#compose)\n* [`seq`](#seq)\n* [`applyEach`](#applyEach), `applyEachSeries`\n* [`queue`](#queue), [`priorityQueue`](#priorityQueue)\n* [`cargo`](#cargo)\n* [`auto`](#auto)\n* [`retry`](#retry)\n* [`iterator`](#iterator)\n* [`times`](#times), `timesSeries`, `timesLimit`\n\n### Utils\n\n* [`apply`](#apply)\n* [`nextTick`](#nextTick)\n* [`memoize`](#memoize)\n* [`unmemoize`](#unmemoize)\n* [`ensureAsync`](#ensureAsync)\n* [`constant`](#constant)\n* [`asyncify`](#asyncify)\n* [`wrapSync`](#wrapSync)\n* [`log`](#log)\n* [`dir`](#dir)\n* [`noConflict`](#noConflict)\n\n## Collections\n\n<a name=\"forEach\" />\n<a name=\"each\" />\n### each(arr, iterator, [callback])\n\nApplies the function `iterator` to each item in `arr`, in parallel.\nThe `iterator` is called with an item from the list, and a callback for when it\nhas finished. If the `iterator` passes an error to its `callback`, the main\n`callback` (for the `each` function) is immediately called with the error.\n\nNote, that since this function applies `iterator` to each item in parallel,\nthere is no guarantee that the iterator functions will complete in order.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A function to apply to each item in `arr`.\n The iterator is passed a `callback(err)` which must be called once it has\n completed. If no error has occurred, the `callback` should be run without\n arguments or with an explicit `null` argument. The array index is not passed\n to the iterator. If you need the index, use [`forEachOf`](#forEachOf).\n* `callback(err)` - *Optional* A callback which is called when all `iterator` functions\n have finished, or an error occurs.\n\n__Examples__\n\n```js\n// assuming openFiles is an array of file names and saveFile is a function\n// to save the modified contents of that file:\n\nasync.each(openFiles, saveFile, function(err){\n // if any of the saves produced an error, err would equal that error\n});\n```\n\n```js\n// assuming openFiles is an array of file names\n\nasync.each(openFiles, function(file, callback) {\n\n // Perform operation on file here.\n console.log('Processing file ' + file);\n\n if( file.length > 32 ) {\n console.log('This file name is too long');\n callback('File name too long');\n } else {\n // Do work to process file here\n console.log('File processed');\n callback();\n }\n}, function(err){\n // if any of the file processing produced an error, err would equal that error\n if( err ) {\n // One of the iterations produced an error.\n // All processing will now stop.\n console.log('A file failed to process');\n } else {\n console.log('All files have been processed successfully');\n }\n});\n```\n\n__Related__\n\n* eachSeries(arr, iterator, [callback])\n* eachLimit(arr, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"forEachOf\" />\n<a name=\"eachOf\" />\n\n### forEachOf(obj, iterator, [callback])\n\nLike `each`, except that it iterates over objects, and passes the key as the second argument to the iterator.\n\n__Arguments__\n\n* `obj` - An object or array to iterate over.\n* `iterator(item, key, callback)` - A function to apply to each item in `obj`.\nThe `key` is the item's key, or index in the case of an array. The iterator is\npassed a `callback(err)` which must be called once it has completed. If no\nerror has occurred, the callback should be run without arguments or with an\nexplicit `null` argument.\n* `callback(err)` - *Optional* A callback which is called when all `iterator` functions have finished, or an error occurs.\n\n__Example__\n\n```js\nvar obj = {dev: \"/dev.json\", test: \"/test.json\", prod: \"/prod.json\"};\nvar configs = {};\n\nasync.forEachOf(obj, function (value, key, callback) {\n fs.readFile(__dirname + value, \"utf8\", function (err, data) {\n if (err) return callback(err);\n try {\n configs[key] = JSON.parse(data);\n } catch (e) {\n return callback(e);\n }\n callback();\n })\n}, function (err) {\n if (err) console.error(err.message);\n // configs is now a map of JSON data\n doSomethingWith(configs);\n})\n```\n\n__Related__\n\n* forEachOfSeries(obj, iterator, [callback])\n* forEachOfLimit(obj, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"map\" />\n### map(arr, iterator, [callback])\n\nProduces a new array of values by mapping each value in `arr` through\nthe `iterator` function. The `iterator` is called with an item from `arr` and a\ncallback for when it has finished processing. Each of these callback takes 2 arguments:\nan `error`, and the transformed item from `arr`. If `iterator` passes an error to its\ncallback, the main `callback` (for the `map` function) is immediately called with the error.\n\nNote, that since this function applies the `iterator` to each item in parallel,\nthere is no guarantee that the `iterator` functions will complete in order.\nHowever, the results array will be in the same order as the original `arr`.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A function to apply to each item in `arr`.\n The iterator is passed a `callback(err, transformed)` which must be called once\n it has completed with an error (which can be `null`) and a transformed item.\n* `callback(err, results)` - *Optional* A callback which is called when all `iterator`\n functions have finished, or an error occurs. Results is an array of the\n transformed items from the `arr`.\n\n__Example__\n\n```js\nasync.map(['file1','file2','file3'], fs.stat, function(err, results){\n // results is now an array of stats for each file\n});\n```\n\n__Related__\n* mapSeries(arr, iterator, [callback])\n* mapLimit(arr, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"select\" />\n<a name=\"filter\" />\n### filter(arr, iterator, [callback])\n\n__Alias:__ `select`\n\nReturns a new array of all the values in `arr` which pass an async truth test.\n_The callback for each `iterator` call only accepts a single argument of `true` or\n`false`; it does not accept an error argument first!_ This is in-line with the\nway node libraries work with truth tests like `fs.exists`. This operation is\nperformed in parallel, but the results array will be in the same order as the\noriginal.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A truth test to apply to each item in `arr`.\n The `iterator` is passed a `callback(truthValue)`, which must be called with a\n boolean argument once it has completed.\n* `callback(results)` - *Optional* A callback which is called after all the `iterator`\n functions have finished.\n\n__Example__\n\n```js\nasync.filter(['file1','file2','file3'], fs.exists, function(results){\n // results now equals an array of the existing files\n});\n```\n\n__Related__\n\n* filterSeries(arr, iterator, [callback])\n* filterLimit(arr, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"reject\" />\n### reject(arr, iterator, [callback])\n\nThe opposite of [`filter`](#filter). Removes values that pass an `async` truth test.\n\n__Related__\n\n* rejectSeries(arr, iterator, [callback])\n* rejectLimit(arr, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"reduce\" />\n### reduce(arr, memo, iterator, [callback])\n\n__Aliases:__ `inject`, `foldl`\n\nReduces `arr` into a single value using an async `iterator` to return\neach successive step. `memo` is the initial state of the reduction.\nThis function only operates in series.\n\nFor performance reasons, it may make sense to split a call to this function into\na parallel map, and then use the normal `Array.prototype.reduce` on the results.\nThis function is for situations where each step in the reduction needs to be async;\nif you can get the data before reducing it, then it's probably a good idea to do so.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `memo` - The initial state of the reduction.\n* `iterator(memo, item, callback)` - A function applied to each item in the\n array to produce the next step in the reduction. The `iterator` is passed a\n `callback(err, reduction)` which accepts an optional error as its first\n argument, and the state of the reduction as the second. If an error is\n passed to the callback, the reduction is stopped and the main `callback` is\n immediately called with the error.\n* `callback(err, result)` - *Optional* A callback which is called after all the `iterator`\n functions have finished. Result is the reduced value.\n\n__Example__\n\n```js\nasync.reduce([1,2,3], 0, function(memo, item, callback){\n // pointless async:\n process.nextTick(function(){\n callback(null, memo + item)\n });\n}, function(err, result){\n // result is now equal to the last value of memo, which is 6\n});\n```\n\n---------------------------------------\n\n<a name=\"reduceRight\" />\n### reduceRight(arr, memo, iterator, [callback])\n\n__Alias:__ `foldr`\n\nSame as [`reduce`](#reduce), only operates on `arr` in reverse order.\n\n---------------------------------------\n\n<a name=\"detect\" />\n### detect(arr, iterator, [callback])\n\nReturns the first value in `arr` that passes an async truth test. The\n`iterator` is applied in parallel, meaning the first iterator to return `true` will\nfire the detect `callback` with that result. That means the result might not be\nthe first item in the original `arr` (in terms of order) that passes the test.\n\nIf order within the original `arr` is important, then look at [`detectSeries`](#detectSeries).\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A truth test to apply to each item in `arr`.\n The iterator is passed a `callback(truthValue)` which must be called with a\n boolean argument once it has completed. **Note: this callback does not take an error as its first argument.**\n* `callback(result)` - *Optional* A callback which is called as soon as any iterator returns\n `true`, or after all the `iterator` functions have finished. Result will be\n the first item in the array that passes the truth test (iterator) or the\n value `undefined` if none passed. **Note: this callback does not take an error as its first argument.**\n\n__Example__\n\n```js\nasync.detect(['file1','file2','file3'], fs.exists, function(result){\n // result now equals the first file in the list that exists\n});\n```\n\n__Related__\n\n* detectSeries(arr, iterator, [callback])\n* detectLimit(arr, limit, iterator, [callback])\n\n---------------------------------------\n\n<a name=\"sortBy\" />\n### sortBy(arr, iterator, [callback])\n\nSorts a list by the results of running each `arr` value through an async `iterator`.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A function to apply to each item in `arr`.\n The iterator is passed a `callback(err, sortValue)` which must be called once it\n has completed with an error (which can be `null`) and a value to use as the sort\n criteria.\n* `callback(err, results)` - *Optional* A callback which is called after all the `iterator`\n functions have finished, or an error occurs. Results is the items from\n the original `arr` sorted by the values returned by the `iterator` calls.\n\n__Example__\n\n```js\nasync.sortBy(['file1','file2','file3'], function(file, callback){\n fs.stat(file, function(err, stats){\n callback(err, stats.mtime);\n });\n}, function(err, results){\n // results is now the original array of files sorted by\n // modified date\n});\n```\n\n__Sort Order__\n\nBy modifying the callback parameter the sorting order can be influenced:\n\n```js\n//ascending order\nasync.sortBy([1,9,3,5], function(x, callback){\n callback(null, x);\n}, function(err,result){\n //result callback\n} );\n\n//descending order\nasync.sortBy([1,9,3,5], function(x, callback){\n callback(null, x*-1); //<- x*-1 instead of x, turns the order around\n}, function(err,result){\n //result callback\n} );\n```\n\n---------------------------------------\n\n<a name=\"some\" />\n### some(arr, iterator, [callback])\n\n__Alias:__ `any`\n\nReturns `true` if at least one element in the `arr` satisfies an async test.\n_The callback for each iterator call only accepts a single argument of `true` or\n`false`; it does not accept an error argument first!_ This is in-line with the\nway node libraries work with truth tests like `fs.exists`. Once any iterator\ncall returns `true`, the main `callback` is immediately called.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A truth test to apply to each item in the array\n in parallel. The iterator is passed a `callback(truthValue)`` which must be\n called with a boolean argument once it has completed.\n* `callback(result)` - *Optional* A callback which is called as soon as any iterator returns\n `true`, or after all the iterator functions have finished. Result will be\n either `true` or `false` depending on the values of the async tests.\n\n **Note: the callbacks do not take an error as their first argument.**\n__Example__\n\n```js\nasync.some(['file1','file2','file3'], fs.exists, function(result){\n // if result is true then at least one of the files exists\n});\n```\n\n__Related__\n\n* someLimit(arr, limit, iterator, callback)\n\n---------------------------------------\n\n<a name=\"every\" />\n### every(arr, iterator, [callback])\n\n__Alias:__ `all`\n\nReturns `true` if every element in `arr` satisfies an async test.\n_The callback for each `iterator` call only accepts a single argument of `true` or\n`false`; it does not accept an error argument first!_ This is in-line with the\nway node libraries work with truth tests like `fs.exists`.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A truth test to apply to each item in the array\n in parallel. The iterator is passed a `callback(truthValue)` which must be\n called with a boolean argument once it has completed.\n* `callback(result)` - *Optional* A callback which is called as soon as any iterator returns\n `false`, or after all the iterator functions have finished. Result will be\n either `true` or `false` depending on the values of the async tests.\n\n **Note: the callbacks do not take an error as their first argument.**\n\n__Example__\n\n```js\nasync.every(['file1','file2','file3'], fs.exists, function(result){\n // if result is true then every file exists\n});\n```\n\n__Related__\n\n* everyLimit(arr, limit, iterator, callback)\n\n---------------------------------------\n\n<a name=\"concat\" />\n### concat(arr, iterator, [callback])\n\nApplies `iterator` to each item in `arr`, concatenating the results. Returns the\nconcatenated list. The `iterator`s are called in parallel, and the results are\nconcatenated as they return. There is no guarantee that the results array will\nbe returned in the original order of `arr` passed to the `iterator` function.\n\n__Arguments__\n\n* `arr` - An array to iterate over.\n* `iterator(item, callback)` - A function to apply to each item in `arr`.\n The iterator is passed a `callback(err, results)` which must be called once it\n has completed with an error (which can be `null`) and an array of results.\n* `callback(err, results)` - *Optional* A callback which is called after all the `iterator`\n functions have finished, or an error occurs. Results is an array containing\n the concatenated results of the `iterator` function.\n\n__Example__\n\n```js\nasync.concat(['dir1','dir2','dir3'], fs.readdir, function(err, files){\n // files is now a list of filenames that exist in the 3 directories\n});\n```\n\n__Related__\n\n* concatSeries(arr, iterator, [callback])\n\n## Control Flow\n\n<a name=\"series\" />\n### series(tasks, [callback])\n\nRun the functions in the `tasks` array in series, each one running once the previous\nfunction has completed. If any functions in the series pass an error to its\ncallback, no more functions are run, and `callback` is immediately called with the value of the error.\nOtherwise, `callback` receives an array of results when `tasks` have completed.\n\nIt is also possible to use an object instead of an array. Each property will be\nrun as a function, and the results will be passed to the final `callback` as an object\ninstead of an array. This can be a more readable way of handling results from\n[`series`](#series).\n\n**Note** that while many implementations preserve the order of object properties, the\n[ECMAScript Language Specification](http://www.ecma-international.org/ecma-262/5.1/#sec-8.6)\nexplicitly states that\n\n> The mechanics and order of enumerating the properties is not specified.\n\nSo if you rely on the order in which your series of functions are executed, and want\nthis to work on all platforms, consider using an array.\n\n__Arguments__\n\n* `tasks` - An array or object containing functions to run, each function is passed\n a `callback(err, result)` it must call on completion with an error `err` (which can\n be `null`) and an optional `result` value.\n* `callback(err, results)` - An optional callback to run once all the functions\n have completed. This function gets a results array (or object) containing all\n the result arguments passed to the `task` callbacks.\n\n__Example__\n\n```js\nasync.series([\n function(callback){\n // do some stuff ...\n callback(null, 'one');\n },\n function(callback){\n // do some more stuff ...\n callback(null, 'two');\n }\n],\n// optional callback\nfunction(err, results){\n // results is now equal to ['one', 'two']\n});\n\n// an example using an object instead of an array\nasync.series({\n one: function(callback){\n setTimeout(function(){\n callback(null, 1);\n }, 200);\n },\n two: function(callback){\n setTimeout(function(){\n callback(null, 2);\n }, 100);\n }\n},\nfunction(err, results) {\n // results is now equal to: {one: 1, two: 2}\n});\n```\n\n---------------------------------------\n\n<a name=\"parallel\" />\n### parallel(tasks, [callback])\n\nRun the `tasks` array of functions in parallel, without waiting until the previous\nfunction has completed. If any of the functions pass an error to its\ncallback, the main `callback` is immediately called with the value of the error.\nOnce the `tasks` have completed, the results are passed to the final `callback` as an\narray.\n\n**Note:** `parallel` is about kicking-off I/O tasks in parallel, not about parallel execution of code. If your tasks do not use any timers or perform any I/O, they will actually be executed in series. Any synchronous setup sections for each task will happen one after the other. JavaScript remains single-threaded.\n\nIt is also possible to use an object instead of an array. Each property will be\nrun as a function and the results will be passed to the final `callback` as an object\ninstead of an array. This can be a more readable way of handling results from\n[`parallel`](#parallel).\n\n__Arguments__\n\n* `tasks` - An array or object containing functions to run. Each function is passed\n a `callback(err, result)` which it must call on completion with an error `err`\n (which can be `null`) and an optional `result` value.\n* `callback(err, results)` - An optional callback to run once all the functions\n have completed successfully. This function gets a results array (or object) containing all\n the result arguments passed to the task callbacks.\n\n__Example__\n\n```js\nasync.parallel([\n function(callback){\n setTimeout(function(){\n callback(null, 'one');\n }, 200);\n },\n function(callback){\n setTimeout(function(){\n callback(null, 'two');\n }, 100);\n }\n],\n// optional callback\nfunction(err, results){\n // the results array will equal ['one','two'] even though\n // the second function had a shorter timeout.\n});\n\n// an example using an object instead of an array\nasync.parallel({\n one: function(callback){\n setTimeout(function(){\n callback(null, 1);\n }, 200);\n },\n two: function(callback){\n setTimeout(function(){\n callback(null, 2);\n }, 100);\n }\n},\nfunction(err, results) {\n // results is now equals to: {one: 1, two: 2}\n});\n```\n\n__Related__\n\n* parallelLimit(tasks, limit, [callback])\n\n---------------------------------------\n\n<a name=\"whilst\" />\n### whilst(test, fn, callback)\n\nRepeatedly call `fn`, while `test` returns `true`. Calls `callback` when stopped,\nor an error occurs.\n\n__Arguments__\n\n* `test()` - synchronous truth test to perform before each execution of `fn`.\n* `fn(callback)` - A function which is called each time `test` passes. The function is\n passed a `callback(err)`, which must be called once it has completed with an\n optional `err` argument.\n* `callback(err, [results])` - A callback which is called after the test\n function has failed and repeated execution of `fn` has stopped. `callback`\n will be passed an error and any arguments passed to the final `fn`'s callback.\n\n__Example__\n\n```js\nvar count = 0;\n\nasync.whilst(\n function () { return count < 5; },\n function (callback) {\n count++;\n setTimeout(function () {\n callback(null, count);\n }, 1000);\n },\n function (err, n) {\n // 5 seconds have passed, n = 5\n }\n);\n```\n\n---------------------------------------\n\n<a name=\"doWhilst\" />\n### doWhilst(fn, test, callback)\n\nThe post-check version of [`whilst`](#whilst). To reflect the difference in\nthe order of operations, the arguments `test` and `fn` are switched.\n\n`doWhilst` is to `whilst` as `do while` is to `while` in plain JavaScript.\n\n---------------------------------------\n\n<a name=\"until\" />\n### until(test, fn, callback)\n\nRepeatedly call `fn` until `test` returns `true`. Calls `callback` when stopped,\nor an error occurs. `callback` will be passed an error and any arguments passed\nto the final `fn`'s callback.\n\nThe inverse of [`whilst`](#whilst).\n\n---------------------------------------\n\n<a name=\"doUntil\" />\n### doUntil(fn, test, callback)\n\nLike [`doWhilst`](#doWhilst), except the `test` is inverted. Note the argument ordering differs from `until`.\n\n---------------------------------------\n\n<a name=\"during\" />\n### during(test, fn, callback)\n\nLike [`whilst`](#whilst), except the `test` is an asynchronous function that is passed a callback in the form of `function (err, truth)`. If error is passed to `test` or `fn`, the main callback is immediately called with the value of the error.\n\n__Example__\n\n```js\nvar count = 0;\n\nasync.during(\n function (callback) {\n return callback(null, count < 5);\n },\n function (callback) {\n count++;\n setTimeout(callback, 1000);\n },\n function (err) {\n // 5 seconds have passed\n }\n);\n```\n\n---------------------------------------\n\n<a name=\"doDuring\" />\n### doDuring(fn, test, callback)\n\nThe post-check version of [`during`](#during). To reflect the difference in\nthe order of operations, the arguments `test` and `fn` are switched.\n\nAlso a version of [`doWhilst`](#doWhilst) with asynchronous `test` function.\n\n---------------------------------------\n\n<a name=\"forever\" />\n### forever(fn, [errback])\n\nCalls the asynchronous function `fn` with a callback parameter that allows it to\ncall itself again, in series, indefinitely.\n\nIf an error is passed to the callback then `errback` is called with the\nerror, and execution stops, otherwise it will never be called.\n\n```js\nasync.forever(\n function(next) {\n // next is suitable for passing to things that need a callback(err [, whatever]);\n // it will result in this function being called again.\n },\n function(err) {\n // if next is called with a value in its first parameter, it will appear\n // in here as 'err', and execution will stop.\n }\n);\n```\n\n---------------------------------------\n\n<a name=\"waterfall\" />\n### waterfall(tasks, [callback])\n\nRuns the `tasks` array of functions in series, each passing their results to the next in\nthe array. However, if any of the `tasks` pass an error to their own callback, the\nnext function is not executed, and the main `callback` is immediately called with\nthe error.\n\n__Arguments__\n\n* `tasks` - An array of functions to run, each function is passed a\n `callback(err, result1, result2, ...)` it must call on completion. The first\n argument is an error (which can be `null`) and any further arguments will be\n passed as arguments in order to the next task.\n* `callback(err, [results])` - An optional callback to run once all the functions\n have completed. This will be passed the results of the last task's callback.\n\n__Example__\n\n```js\nasync.waterfall([\n function(callback) {\n callback(null, 'one', 'two');\n },\n function(arg1, arg2, callback) {\n // arg1 now equals 'one' and arg2 now equals 'two'\n callback(null, 'three');\n },\n function(arg1, callback) {\n // arg1 now equals 'three'\n callback(null, 'done');\n }\n], function (err, result) {\n // result now equals 'done'\n});\n```\nOr, with named functions:\n\n```js\nasync.waterfall([\n myFirstFunction,\n mySecondFunction,\n myLastFunction,\n], function (err, result) {\n // result now equals 'done'\n});\nfunction myFirstFunction(callback) {\n callback(null, 'one', 'two');\n}\nfunction mySecondFunction(arg1, arg2, callback) {\n // arg1 now equals 'one' and arg2 now equals 'two'\n callback(null, 'three');\n}\nfunction myLastFunction(arg1, callback) {\n // arg1 now equals 'three'\n callback(null, 'done');\n}\n```\n\nOr, if you need to pass any argument to the first function:\n\n```js\nasync.waterfall([\n async.apply(myFirstFunction, 'zero'),\n mySecondFunction,\n myLastFunction,\n], function (err, result) {\n // result now equals 'done'\n});\nfunction myFirstFunction(arg1, callback) {\n // arg1 now equals 'zero'\n callback(null, 'one', 'two');\n}\nfunction mySecondFunction(arg1, arg2, callback) {\n // arg1 now equals 'one' and arg2 now equals 'two'\n callback(null, 'three');\n}\nfunction myLastFunction(arg1, callback) {\n // arg1 now equals 'three'\n callback(null, 'done');\n}\n```\n\n---------------------------------------\n<a name=\"compose\" />\n### compose(fn1, fn2...)\n\nCreates a function which is a composition of the passed asynchronous\nfunctions. Each function consumes the return value of the function that\nfollows. Composing functions `f()`, `g()`, and `h()` would produce the result of\n`f(g(h()))`, only this version uses callbacks to obtain the return values.\n\nEach function is executed with the `this` binding of the composed function.\n\n__Arguments__\n\n* `functions...` - the asynchronous functions to compose\n\n__Example__\n\n```js\nfunction add1(n, callback) {\n setTimeout(function () {\n callback(null, n + 1);\n }, 10);\n}\n\nfunction mul3(n, callback) {\n setTimeout(function () {\n callback(null, n * 3);\n }, 10);\n}\n\nvar add1mul3 = async.compose(mul3, add1);\n\nadd1mul3(4, function (err, result) {\n // result now equals 15\n});\n```\n\n---------------------------------------\n<a name=\"seq\" />\n### seq(fn1, fn2...)\n\nVersion of the compose function that is more natural to read.\nEach function consumes the return value of the previous function.\nIt is the equivalent of [`compose`](#compose) with the arguments reversed.\n\nEach function is executed with the `this` binding of the composed function.\n\n__Arguments__\n\n* `functions...` - the asynchronous functions to compose\n\n__Example__\n\n```js\n// Requires lodash (or underscore), express3 and dresende's orm2.\n// Part of an app, that fetches cats of the logged user.\n// This example uses `seq` function to avoid overnesting and error\n// handling clutter.\napp.get('/cats', function(request, response) {\n var User = request.models.User;\n async.seq(\n _.bind(User.get, User), // 'User.get' has signature (id, callback(err, data))\n function(user, fn) {\n user.getCats(fn); // 'getCats' has signature (callback(err, data))\n }\n )(req.session.user_id, function (err, cats) {\n if (err) {\n console.error(err);\n response.json({ status: 'error', message: err.message });\n } else {\n response.json({ status: 'ok', message: 'Cats found', data: cats });\n }\n });\n});\n```\n\n---------------------------------------\n<a name=\"applyEach\" />\n### applyEach(fns, args..., callback)\n\nApplies the provided arguments to each function in the array, calling\n`callback` after all functions have completed. If you only provide the first\nargument, then it will return a function which lets you pass in the\narguments as if it were a single function call.\n\n__Arguments__\n\n* `fns` - the asynchronous functions to all call with the same arguments\n* `args...` - any number of separate arguments to pass to the function\n* `callback` - the final argument should be the callback, called when all\n functions have completed processing\n\n__Example__\n\n```js\nasync.applyEach([enableSearch, updateSchema], 'bucket', callback);\n\n// partial application example:\nasync.each(\n buckets,\n async.applyEach([enableSearch, updateSchema]),\n callback\n);\n```\n\n__Related__\n\n* applyEachSeries(tasks, args..., [callback])\n\n---------------------------------------\n\n<a name=\"queue\" />\n### queue(worker, [concurrency])\n\nCreates a `queue` object with the specified `concurrency`. Tasks added to the\n`queue` are processed in parallel (up to the `concurrency` limit). If all\n`worker`s are in progress, the task is queued until one becomes available.\nOnce a `worker` completes a `task`, that `task`'s callback is called.\n\n__Arguments__\n\n* `worker(task, callback)` - An asynchronous function for processing a queued\n task, which must call its `callback(err)` argument when finished, with an\n optional `error` as an argument. If you want to handle errors from an individual task, pass a callback to `q.push()`.\n* `concurrency` - An `integer` for determining how many `worker` functions should be\n run in parallel. If omitted, the concurrency defaults to `1`. If the concurrency is `0`, an error is thrown.\n\n__Queue objects__\n\nThe `queue` object returned by this function has the following properties and\nmethods:\n\n* `length()` - a function returning the number of items waiting to be processed.\n* `started` - a function returning whether or not any items have been pushed and processed by the queue\n* `running()` - a function returning the number of items currently being processed.\n* `workersList()` - a function returning the array of items currently being processed.\n* `idle()` - a function returning false if there are items waiting or being processed, or true if not.\n* `concurrency` - an integer for determining how many `worker` functions should be\n run in parallel. This property can be changed after a `queue` is created to\n alter the concurrency on-the-fly.\n* `push(task, [callback])` - add a new task to the `queue`. Calls `callback` once\n the `worker` has finished processing the task. Instead of a single task, a `tasks` array\n can be submitted. The respective callback is used for every task in the list.\n* `unshift(task, [callback])` - add a new task to the front of the `queue`.\n* `saturated` - a callback that is called when the `queue` length hits the `concurrency` limit,\n and further tasks will be queued.\n* `empty` - a callback that is called when the last item from the `queue` is given to a `worker`.\n* `drain` - a callback that is called when the last item from the `queue` has returned from the `worker`.\n* `paused` - a boolean for determining whether the queue is in a paused state\n* `pause()` - a function that pauses the processing of tasks until `resume()` is called.\n* `resume()` - a function that resumes the processing of queued tasks when the queue is paused.\n* `kill()` - a function that removes the `drain` callback and empties remaining tasks from the queue forcing it to go idle.\n\n__Example__\n\n```js\n// create a queue object with concurrency 2\n\nvar q = async.queue(function (task, callback) {\n console.log('hello ' + task.name);\n callback();\n}, 2);\n\n// assign a callback\nq.drain = function() {\n console.log('all items have been processed');\n}\n\n// add some items to the queue\n\nq.push({name: 'foo'}, function (err) {\n console.log('finished processing foo');\n});\nq.push({name: 'bar'}, function (err) {\n console.log('finished processing bar');\n});\n\n// add some items to the queue (batch-wise)\n\nq.push([{name: 'baz'},{name: 'bay'},{name: 'bax'}], function (err) {\n console.log('finished processing item');\n});\n\n// add some items to the front of the queue\n\nq.unshift({name: 'bar'}, function (err) {\n console.log('finished processing bar');\n});\n```\n\n---------------------------------------\n\n<a name=\"priorityQueue\" />\n### priorityQueue(worker, concurrency)\n\nThe same as [`queue`](#queue) only tasks are assigned a priority and completed in ascending priority order. There are two differences between `queue` and `priorityQueue` objects:\n\n* `push(task, priority, [callback])` - `priority` should be a number. If an array of\n `tasks` is given, all tasks will be assigned the same priority.\n* The `unshift` method was removed.\n\n---------------------------------------\n\n<a name=\"cargo\" />\n### cargo(worker, [payload])\n\nCreates a `cargo` object with the specified payload. Tasks added to the\ncargo will be processed altogether (up to the `payload` limit). If the\n`worker` is in progress, the task is queued until it becomes available. Once\nthe `worker` has completed some tasks, each callback of those tasks is called.\nCheck out [these](https://camo.githubusercontent.com/6bbd36f4cf5b35a0f11a96dcd2e97711ffc2fb37/68747470733a2f2f662e636c6f75642e6769746875622e636f6d2f6173736574732f313637363837312f36383130382f62626330636662302d356632392d313165322d393734662d3333393763363464633835382e676966) [animations](https://camo.githubusercontent.com/f4810e00e1c5f5f8addbe3e9f49064fd5d102699/68747470733a2f2f662e636c6f75642e6769746875622e636f6d2f6173736574732f313637363837312f36383130312f38346339323036362d356632392d313165322d383134662d3964336430323431336266642e676966) for how `cargo` and `queue` work.\n\nWhile [queue](#queue) passes only one task to one of a group of workers\nat a time, cargo passes an array of tasks to a single worker, repeating\nwhen the worker is finished.\n\n__Arguments__\n\n* `worker(tasks, callback)` - An asynchronous function for processing an array of\n queued tasks, which must call its `callback(err)` argument when finished, with\n an optional `err` argument.\n* `payload` - An optional `integer` for determining how many tasks should be\n processed per round; if omitted, the default is unlimited.\n\n__Cargo objects__\n\nThe `cargo` object returned by this function has the following properties and\nmethods:\n\n* `length()` - A function returning the number of items waiting to be processed.\n* `payload` - An `integer` for determining how many tasks should be\n process per round. This property can be changed after a `cargo` is created to\n alter the payload on-the-fly.\n* `push(task, [callback])` - Adds `task` to the `queue`. The callback is called\n once the `worker` has finished processing the task. Instead of a single task, an array of `tasks`\n can be submitted. The respective callback is used for every task in the list.\n* `saturated` - A callback that is called when the `queue.length()` hits the concurrency and further tasks will be queued.\n* `empty` - A callback that is called when the last item from the `queue` is given to a `worker`.\n* `drain` - A callback that is called when the last item from the `queue` has returned from the `worker`.\n* `idle()`, `pause()`, `resume()`, `kill()` - cargo inherits all of the same methods and event calbacks as [`queue`](#queue)\n\n__Example__\n\n```js\n// create a cargo object with payload 2\n\nvar cargo = async.cargo(function (tasks, callback) {\n for(var i=0; i<tasks.length; i++){\n console.log('hello ' + tasks[i].name);\n }\n callback();\n}, 2);\n\n// add some items\n\ncargo.push({name: 'foo'}, function (err) {\n console.log('finished processing foo');\n});\ncargo.push({name: 'bar'}, function (err) {\n console.log('finished processing bar');\n});\ncargo.push({name: 'baz'}, function (err) {\n console.log('finished processing baz');\n});\n```\n\n---------------------------------------\n\n<a name=\"auto\" />\n### auto(tasks, [concurrency], [callback])\n\nDetermines the best order for running the functions in `tasks`, based on their requirements. Each function can optionally depend on other functions being completed first, and each function is run as soon as its requirements are satisfied.\n\nIf any of the functions pass an error to their callback, the `auto` sequence will stop. Further tasks will not execute (so any other functions depending on it will not run), and the main `callback` is immediately called with the error. Functions also receive an object containing the results of functions which have completed so far.\n\nNote, all functions are called with a `results` object as a second argument,\nso it is unsafe to pass functions in the `tasks` object which cannot handle the\nextra argument.\n\nFor example, this snippet of code:\n\n```js\nasync.auto({\n readData: async.apply(fs.readFile, 'data.txt', 'utf-8')\n}, callback);\n```\n\nwill have the effect of calling `readFile` with the results object as the last\nargument, which will fail:\n\n```js\nfs.readFile('data.txt', 'utf-8', cb, {});\n```\n\nInstead, wrap the call to `readFile` in a function which does not forward the\n`results` object:\n\n```js\nasync.auto({\n readData: function(cb, results){\n fs.readFile('data.txt', 'utf-8', cb);\n }\n}, callback);\n```\n\n__Arguments__\n\n* `tasks` - An object. Each of its properties is either a function or an array of\n requirements, with the function itself the last item in the array. The object's key\n of a property serves as the name of the task defined by that property,\n i.e. can be used when specifying requirements for other tasks.\n The function receives two arguments: (1) a `callback(err, result)` which must be\n called when finished, passing an `error` (which can be `null`) and the result of\n the function's execution, and (2) a `results` object, containing the results of\n the previously executed functions.\n* `concurrency` - An optional `integer` for determining the maximum number of tasks that can be run in parallel. By default, as many as possible.\n* `callback(err, results)` - An optional callback which is called when all the\n tasks have been completed. It receives the `err` argument if any `tasks`\n pass an error to their callback. Results are always returned; however, if\n an error occurs, no further `tasks` will be performed, and the results\n object will only contain partial results.\n\n__Example__\n\n```js\nasync.auto({\n get_data: function(callback){\n console.log('in get_data');\n // async code to get some data\n callback(null, 'data', 'converted to array');\n },\n make_folder: function(callback){\n console.log('in make_folder');\n // async code to create a directory to store a file in\n // this is run at the same time as getting the data\n callback(null, 'folder');\n },\n write_file: ['get_data', 'make_folder', function(callback, results){\n console.log('in write_file', JSON.stringify(results));\n // once there is some data and the directory exists,\n // write the data to a file in the directory\n callback(null, 'filename');\n }],\n email_link: ['write_file', function(callback, results){\n console.log('in email_link', JSON.stringify(results));\n // once the file is written let's email a link to it...\n // results.write_file contains the filename returned by write_file.\n callback(null, {'file':results.write_file, 'email':'user@example.com'});\n }]\n}, function(err, results) {\n console.log('err = ', err);\n console.log('results = ', results);\n});\n```\n\nThis is a fairly trivial example, but to do this using the basic parallel and\nseries functions would look like this:\n\n```js\nasync.parallel([\n function(callback){\n console.log('in get_data');\n // async code to get some data\n callback(null, 'data', 'converted to array');\n },\n function(callback){\n console.log('in make_folder');\n // async code to create a directory to store a file in\n // this is run at the same time as getting the data\n callback(null, 'folder');\n }\n],\nfunction(err, results){\n async.series([\n function(callback){\n console.log('in write_file', JSON.stringify(results));\n // once there is some data and the directory exists,\n // write the data to a file in the directory\n results.push('filename');\n callback(null);\n },\n function(callback){\n console.log('in email_link', JSON.stringify(results));\n // once the file is written let's email a link to it...\n callback(null, {'file':results.pop(), 'email':'user@example.com'});\n }\n ]);\n});\n```\n\nFor a complicated series of `async` tasks, using the [`auto`](#auto) function makes adding\nnew tasks much easier (and the code more readable).\n\n---------------------------------------\n\n<a name=\"retry\" />\n### retry([opts = {times: 5, interval: 0}| 5], task, [callback])\n\nAttempts to get a successful response from `task` no more than `times` times before\nreturning an error. If the task is successful, the `callback` will be passed the result\nof the successful task. If all attempts fail, the callback will be passed the error and\nresult (if any) of the final attempt.\n\n__Arguments__\n\n* `opts` - Can be either an object with `times` and `interval` or a number.\n * `times` - The number of attempts to make before giving up. The default is `5`.\n * `interval` - The time to wait between retries, in milliseconds. The default is `0`.\n * If `opts` is a number, the number specifies the number of times to retry, with the default interval of `0`. \n* `task(callback, results)` - A function which receives two arguments: (1) a `callback(err, result)`\n which must be called when finished, passing `err` (which can be `null`) and the `result` of\n the function's execution, and (2) a `results` object, containing the results of\n the previously executed functions (if nested inside another control flow).\n* `callback(err, results)` - An optional callback which is called when the\n task has succeeded, or after the final failed attempt. It receives the `err` and `result` arguments of the last attempt at completing the `task`.\n\nThe [`retry`](#retry) function can be used as a stand-alone control flow by passing a callback, as shown below:\n\n```js\n// try calling apiMethod 3 times\nasync.retry(3, apiMethod, function(err, result) {\n // do something with the result\n});\n```\n\n```js\n// try calling apiMethod 3 times, waiting 200 ms between each retry \nasync.retry({times: 3, interval: 200}, apiMethod, function(err, result) {\n // do something with the result\n});\n```\n\n```js\n// try calling apiMethod the default 5 times no delay between each retry \nasync.retry(apiMethod, function(err, result) {\n // do something with the result\n});\n```\n\nIt can also be embedded within other control flow functions to retry individual methods\nthat are not as reliable, like this:\n\n```js\nasync.auto({\n users: api.getUsers.bind(api),\n payments: async.retry(3, api.getPayments.bind(api))\n}, function(err, results) {\n // do something with the results\n});\n```\n\n---------------------------------------\n\n<a name=\"iterator\" />\n### iterator(tasks)\n\nCreates an iterator function which calls the next function in the `tasks` array,\nreturning a continuation to call the next one after that. It's also possible to\n“peek” at the next iterator with `iterator.next()`.\n\nThis function is used internally by the `async` module, but can be useful when\nyou want to manually control the flow of functions in series.\n\n__Arguments__\n\n* `tasks` - An array of functions to run.\n\n__Example__\n\n```js\nvar iterator = async.iterator([\n function(){ sys.p('one'); },\n function(){ sys.p('two'); },\n function(){ sys.p('three'); }\n]);\n\nnode> var iterator2 = iterator();\n'one'\nnode> var iterator3 = iterator2();\n'two'\nnode> iterator3();\n'three'\nnode> var nextfn = iterator2.next();\nnode> nextfn();\n'three'\n```\n\n---------------------------------------\n\n<a name=\"apply\" />\n### apply(function, arguments..)\n\nCreates a continuation function with some arguments already applied.\n\nUseful as a shorthand when combined with other control flow functions. Any arguments\npassed to the returned function are added to the arguments originally passed\nto apply.\n\n__Arguments__\n\n* `function` - The function you want to eventually apply all arguments to.\n* `arguments...` - Any number of arguments to automatically apply when the\n continuation is called.\n\n__Example__\n\n```js\n// using apply\n\nasync.parallel([\n async.apply(fs.writeFile, 'testfile1', 'test1'),\n async.apply(fs.writeFile, 'testfile2', 'test2'),\n]);\n\n// the same process without using apply\n\nasync.parallel([\n function(callback){\n fs.writeFile('testfile1', 'test1', callback);\n },\n function(callback){\n fs.writeFile('testfile2', 'test2', callback);\n }\n]);\n```\n\nIt's possible to pass any number of additional arguments when calling the\ncontinuation:\n\n```js\nnode> var fn = async.apply(sys.puts, 'one');\nnode> fn('two', 'three');\none\ntwo\nthree\n```\n\n---------------------------------------\n\n<a name=\"nextTick\" />\n### nextTick(callback), setImmediate(callback)\n\nCalls `callback` on a later loop around the event loop. In Node.js this just\ncalls `process.nextTick`; in the browser it falls back to `setImmediate(callback)`\nif available, otherwise `setTimeout(callback, 0)`, which means other higher priority\nevents may precede the execution of `callback`.\n\nThis is used internally for browser-compatibility purposes.\n\n__Arguments__\n\n* `callback` - The function to call on a later loop around the event loop.\n\n__Example__\n\n```js\nvar call_order = [];\nasync.nextTick(function(){\n call_order.push('two');\n // call_order now equals ['one','two']\n});\ncall_order.push('one')\n```\n\n<a name=\"times\" />\n### times(n, iterator, [callback])\n\nCalls the `iterator` function `n` times, and accumulates results in the same manner\nyou would use with [`map`](#map).\n\n__Arguments__\n\n* `n` - The number of times to run the function.\n* `iterator` - The function to call `n` times.\n* `callback` - see [`map`](#map)\n\n__Example__\n\n```js\n// Pretend this is some complicated async factory\nvar createUser = function(id, callback) {\n callback(null, {\n id: 'user' + id\n })\n}\n// generate 5 users\nasync.times(5, function(n, next){\n createUser(n, function(err, user) {\n next(err, user)\n })\n}, function(err, users) {\n // we should now have 5 users\n});\n```\n\n__Related__\n\n* timesSeries(n, iterator, [callback])\n* timesLimit(n, limit, iterator, [callback])\n\n## Utils\n\n<a name=\"memoize\" />\n### memoize(fn, [hasher])\n\nCaches the results of an `async` function. When creating a hash to store function\nresults against, the callback is omitted from the hash and an optional hash\nfunction can be used.\n\nIf no hash function is specified, the first argument is used as a hash key, which may work reasonably if it is a string or a data type that converts to a distinct string. Note that objects and arrays will not behave reasonably. Neither will cases where the other arguments are significant. In such cases, specify your own hash function.\n\nThe cache of results is exposed as the `memo` property of the function returned\nby `memoize`.\n\n__Arguments__\n\n* `fn` - The function to proxy and cache results from.\n* `hasher` - An optional function for generating a custom hash for storing\n results. It has all the arguments applied to it apart from the callback, and\n must be synchronous.\n\n__Example__\n\n```js\nvar slow_fn = function (name, callback) {\n // do something\n callback(null, result);\n};\nvar fn = async.memoize(slow_fn);\n\n// fn can now be used as if it were slow_fn\nfn('some name', function () {\n // callback\n});\n```\n\n<a name=\"unmemoize\" />\n### unmemoize(fn)\n\nUndoes a [`memoize`](#memoize)d function, reverting it to the original, unmemoized\nform. Handy for testing.\n\n__Arguments__\n\n* `fn` - the memoized function\n\n---------------------------------------\n\n<a name=\"ensureAsync\" />\n### ensureAsync(fn)\n\nWrap an async function and ensure it calls its callback on a later tick of the event loop. If the function already calls its callback on a next tick, no extra deferral is added. This is useful for preventing stack overflows (`RangeError: Maximum call stack size exceeded`) and generally keeping [Zalgo](http://blog.izs.me/post/59142742143/designing-apis-for-asynchrony) contained.\n\n__Arguments__\n\n* `fn` - an async function, one that expects a node-style callback as its last argument\n\nReturns a wrapped function with the exact same call signature as the function passed in.\n\n__Example__\n\n```js\nfunction sometimesAsync(arg, callback) {\n if (cache[arg]) {\n return callback(null, cache[arg]); // this would be synchronous!!\n } else {\n doSomeIO(arg, callback); // this IO would be asynchronous\n }\n}\n\n// this has a risk of stack overflows if many results are cached in a row\nasync.mapSeries(args, sometimesAsync, done);\n\n// this will defer sometimesAsync's callback if necessary,\n// preventing stack overflows\nasync.mapSeries(args, async.ensureAsync(sometimesAsync), done);\n\n```\n\n---------------------------------------\n\n<a name=\"constant\">\n### constant(values...)\n\nReturns a function that when called, calls-back with the values provided. Useful as the first function in a `waterfall`, or for plugging values in to `auto`.\n\n__Example__\n\n```js\nasync.waterfall([\n async.constant(42),\n function (value, next) {\n // value === 42\n },\n //...\n], callback);\n\nasync.waterfall([\n async.constant(filename, \"utf8\"),\n fs.readFile,\n function (fileData, next) {\n //...\n }\n //...\n], callback);\n\nasync.auto({\n hostname: async.constant(\"https://server.net/\"),\n port: findFreePort,\n launchServer: [\"hostname\", \"port\", function (cb, options) {\n startServer(options, cb);\n }],\n //...\n}, callback);\n\n```\n\n---------------------------------------\n\n<a name=\"asyncify\">\n<a name=\"wrapSync\">\n### asyncify(func)\n\n__Alias:__ `wrapSync`\n\nTake a sync function and make it async, passing its return value to a callback. This is useful for plugging sync functions into a waterfall, series, or other async functions. Any arguments passed to the generated function will be passed to the wrapped function (except for the final callback argument). Errors thrown will be passed to the callback.\n\n__Example__\n\n```js\nasync.waterfall([\n async.apply(fs.readFile, filename, \"utf8\"),\n async.asyncify(JSON.parse),\n function (data, next) {\n // data is the result of parsing the text.\n // If there was a parsing error, it would have been caught.\n }\n], callback)\n```\n\nIf the function passed to `asyncify` returns a Promise, that promises's resolved/rejected state will be used to call the callback, rather than simply the synchronous return value. Example:\n\n```js\nasync.waterfall([\n async.apply(fs.readFile, filename, \"utf8\"),\n async.asyncify(function (contents) {\n return db.model.create(contents);\n }),\n function (model, next) {\n // `model` is the instantiated model object. \n // If there was an error, this function would be skipped.\n }\n], callback)\n```\n\nThis also means you can asyncify ES2016 `async` functions.\n\n```js\nvar q = async.queue(async.asyncify(async function (file) {\n var intermediateStep = await processFile(file);\n return await somePromise(intermediateStep)\n}));\n\nq.push(files);\n```\n\n---------------------------------------\n\n<a name=\"log\" />\n### log(function, arguments)\n\nLogs the result of an `async` function to the `console`. Only works in Node.js or\nin browsers that support `console.log` and `console.error` (such as FF and Chrome).\nIf multiple arguments are returned from the async function, `console.log` is\ncalled on each argument in order.\n\n__Arguments__\n\n* `function` - The function you want to eventually apply all arguments to.\n* `arguments...` - Any number of arguments to apply to the function.\n\n__Example__\n\n```js\nvar hello = function(name, callback){\n setTimeout(function(){\n callback(null, 'hello ' + name);\n }, 1000);\n};\n```\n```js\nnode> async.log(hello, 'world');\n'hello world'\n```\n\n---------------------------------------\n\n<a name=\"dir\" />\n### dir(function, arguments)\n\nLogs the result of an `async` function to the `console` using `console.dir` to\ndisplay the properties of the resulting object. Only works in Node.js or\nin browsers that support `console.dir` and `console.error` (such as FF and Chrome).\nIf multiple arguments are returned from the async function, `console.dir` is\ncalled on each argument in order.\n\n__Arguments__\n\n* `function` - The function you want to eventually apply all arguments to.\n* `arguments...` - Any number of arguments to apply to the function.\n\n__Example__\n\n```js\nvar hello = function(name, callback){\n setTimeout(function(){\n callback(null, {hello: name});\n }, 1000);\n};\n```\n```js\nnode> async.dir(hello, 'world');\n{hello: 'world'}\n```\n\n---------------------------------------\n\n<a name=\"noConflict\" />\n### noConflict()\n\nChanges the value of `async` back to its original value, returning a reference to the\n`async` object.\n## Follow Redirects\n\nDrop-in replacement for Nodes `http` and `https` that automatically follows redirects.\n\n[](https://www.npmjs.com/package/follow-redirects)\n[](https://travis-ci.org/follow-redirects/follow-redirects)\n[](https://coveralls.io/r/follow-redirects/follow-redirects?branch=master)\n[](https://david-dm.org/follow-redirects/follow-redirects)\n[](https://www.npmjs.com/package/follow-redirects)\n\n`follow-redirects` provides [request](https://nodejs.org/api/http.html#http_http_request_options_callback) and [get](https://nodejs.org/api/http.html#http_http_get_options_callback)\n methods that behave identically to those found on the native [http](https://nodejs.org/api/http.html#http_http_request_options_callback) and [https](https://nodejs.org/api/https.html#https_https_request_options_callback)\n modules, with the exception that they will seamlessly follow redirects.\n\n```javascript\nvar http = require('follow-redirects').http;\nvar https = require('follow-redirects').https;\n\nhttp.get('http://bit.ly/900913', function (response) {\n response.on('data', function (chunk) {\n console.log(chunk);\n });\n}).on('error', function (err) {\n console.error(err);\n});\n```\n\nYou can inspect the final redirected URL through the `responseUrl` property on the `response`.\nIf no redirection happened, `responseUrl` is the original request URL.\n\n```javascript\nhttps.request({\n host: 'bitly.com',\n path: '/UHfDGO',\n}, function (response) {\n console.log(response.responseUrl);\n // 'http://duckduckgo.com/robots.txt'\n});\n```\n\n## Options\n### Global options\nGlobal options are set directly on the `follow-redirects` module:\n\n```javascript\nvar followRedirects = require('follow-redirects');\nfollowRedirects.maxRedirects = 10;\nfollowRedirects.maxBodyLength = 20 * 1024 * 1024; // 20 MB\n```\n\nThe following global options are supported:\n\n- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.\n\n- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.\n\n### Per-request options\nPer-request options are set by passing an `options` object:\n\n```javascript\nvar url = require('url');\nvar followRedirects = require('follow-redirects');\n\nvar options = url.parse('http://bit.ly/900913');\noptions.maxRedirects = 10;\nhttp.request(options);\n```\n\nIn addition to the [standard HTTP](https://nodejs.org/api/http.html#http_http_request_options_callback) and [HTTPS options](https://nodejs.org/api/https.html#https_https_request_options_callback),\nthe following per-request options are supported:\n- `followRedirects` (default: `true`) – whether redirects should be followed.\n\n- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.\n\n- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.\n\n- `agents` (default: `undefined`) – sets the `agent` option per protocol, since HTTP and HTTPS use different agents. Example value: `{ http: new http.Agent(), https: new https.Agent() }`\n\n- `trackRedirects` (default: `false`) – whether to store the redirected response details into the `redirects` array on the response object.\n\n### Advanced usage\nBy default, `follow-redirects` will use the Node.js default implementations\nof [`http`](https://nodejs.org/api/http.html)\nand [`https`](https://nodejs.org/api/https.html).\nTo enable features such as caching and/or intermediate request tracking,\nyou might instead want to wrap `follow-redirects` around custom protocol implementations:\n\n```javascript\nvar followRedirects = require('follow-redirects').wrap({\n http: require('your-custom-http'),\n https: require('your-custom-https'),\n});\n```\n\nSuch custom protocols only need an implementation of the `request` method.\n\n## Browser Usage\n\nDue to the way the browser works,\nthe `http` and `https` browser equivalents perform redirects by default.\n\nBy requiring `follow-redirects` this way:\n```javascript\nvar http = require('follow-redirects/http');\nvar https = require('follow-redirects/https');\n```\nyou can easily tell webpack and friends to replace\n`follow-redirect` by the built-in versions:\n\n```json\n{\n \"follow-redirects/http\" : \"http\",\n \"follow-redirects/https\" : \"https\"\n}\n```\n\n## Contributing\n\nPull Requests are always welcome. Please [file an issue](https://github.com/follow-redirects/follow-redirects/issues)\n detailing your proposal before you invest your valuable time. Additional features and bug fixes should be accompanied\n by tests. You can run the test suite locally with a simple `npm test` command.\n\n## Debug Logging\n\n`follow-redirects` uses the excellent [debug](https://www.npmjs.com/package/debug) for logging. To turn on logging\n set the environment variable `DEBUG=follow-redirects` for debug output from just this module. When running the test\n suite it is sometimes advantageous to set `DEBUG=*` to see output from the express server as well.\n\n## Authors\n\n- Olivier Lalonde (olalonde@gmail.com)\n- James Talmage (james@talmage.io)\n- [Ruben Verborgh](https://ruben.verborgh.org/)\n\n## License\n\n[MIT License](https://github.com/follow-redirects/follow-redirects/blob/master/LICENSE)\nwide-align\n----------\n\nA wide-character aware text alignment function for use in terminals / on the\nconsole.\n\n### Usage\n\n```\nvar align = require('wide-align')\n\n// Note that if you view this on a unicode console, all of the slashes are\n// aligned. This is because on a console, all narrow characters are\n// an en wide and all wide characters are an em. In browsers, this isn't\n// held to and wide characters like \"古\" can be less than two narrow\n// characters even with a fixed width font.\n\nconsole.log(align.center('abc', 10)) // ' abc '\nconsole.log(align.center('古古古', 10)) // ' 古古古 '\nconsole.log(align.left('abc', 10)) // 'abc '\nconsole.log(align.left('古古古', 10)) // '古古古 '\nconsole.log(align.right('abc', 10)) // ' abc'\nconsole.log(align.right('古古古', 10)) // ' 古古古'\n```\n\n### Functions\n\n#### `align.center(str, length)` → `str`\n\nReturns *str* with spaces added to both sides such that that it is *length*\nchars long and centered in the spaces.\n\n#### `align.left(str, length)` → `str`\n\nReturns *str* with spaces to the right such that it is *length* chars long.\n\n### `align.right(str, length)` → `str`\n\nReturns *str* with spaces to the left such that it is *length* chars long.\n\n### Origins\n\nThese functions were originally taken from \n[cliui](https://npmjs.com/package/cliui). Changes include switching to the\nMUCH faster pad generation function from\n[lodash](https://npmjs.com/package/lodash), making center alignment pad\nboth sides and adding left alignment.\nAn ini format parser and serializer for node.\n\nSections are treated as nested objects. Items before the first\nheading are saved on the object directly.\n\n## Usage\n\nConsider an ini-file `config.ini` that looks like this:\n\n ; this comment is being ignored\n scope = global\n\n [database]\n user = dbuser\n password = dbpassword\n database = use_this_database\n\n [paths.default]\n datadir = /var/lib/data\n array[] = first value\n array[] = second value\n array[] = third value\n\nYou can read, manipulate and write the ini-file like so:\n\n var fs = require('fs')\n , ini = require('ini')\n\n var config = ini.parse(fs.readFileSync('./config.ini', 'utf-8'))\n\n config.scope = 'local'\n config.database.database = 'use_another_database'\n config.paths.default.tmpdir = '/tmp'\n delete config.paths.default.datadir\n config.paths.default.array.push('fourth value')\n\n fs.writeFileSync('./config_modified.ini', ini.stringify(config, { section: 'section' }))\n\nThis will result in a file called `config_modified.ini` being written\nto the filesystem with the following content:\n\n [section]\n scope=local\n [section.database]\n user=dbuser\n password=dbpassword\n database=use_another_database\n [section.paths.default]\n tmpdir=/tmp\n array[]=first value\n array[]=second value\n array[]=third value\n array[]=fourth value\n\n## API\n\n### decode(inistring)\n\nDecode the ini-style formatted `inistring` into a nested object.\n\n### parse(inistring)\n\nAlias for `decode(inistring)`\n\n### encode(object, [options])\n\nEncode the object `object` into an ini-style formatted string. If the\noptional parameter `section` is given, then all top-level properties\nof the object are put into this section and the `section`-string is\nprepended to all sub-sections, see the usage example above.\n\nThe `options` object may contain the following:\n\n* `section` A string which will be the first `section` in the encoded\n ini data. Defaults to none.\n* `whitespace` Boolean to specify whether to put whitespace around the\n `=` character. By default, whitespace is omitted, to be friendly to\n some persnickety old parsers that don't tolerate it well. But some\n find that it's more human-readable and pretty with the whitespace.\n\nFor backwards compatibility reasons, if a `string` options is passed\nin, then it is assumed to be the `section` value.\n\n### stringify(object, [options])\n\nAlias for `encode(object, [options])`\n\n### safe(val)\n\nEscapes the string `val` such that it is safe to be used as a key or\nvalue in an ini-file. Basically escapes quotes. For example\n\n ini.safe('\"unsafe string\"')\n\nwould result in\n\n \"\\\"unsafe string\\\"\"\n\n### unsafe(val)\n\nUnescapes the string `val`\n# repeat-string [](https://www.npmjs.com/package/repeat-string) [](https://npmjs.org/package/repeat-string) [](https://npmjs.org/package/repeat-string) [](https://travis-ci.org/jonschlinkert/repeat-string)\n\n> Repeat the given string n times. Fastest implementation for repeating a string.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save repeat-string\n```\n\n## Usage\n\n### [repeat](index.js#L41)\n\nRepeat the given `string` the specified `number` of times.\n\n**Example:**\n\n**Example**\n\n```js\nvar repeat = require('repeat-string');\nrepeat('A', 5);\n//=> AAAAA\n```\n\n**Params**\n\n* `string` **{String}**: The string to repeat\n* `number` **{Number}**: The number of times to repeat the string\n* `returns` **{String}**: Repeated string\n\n## Benchmarks\n\nRepeat string is significantly faster than the native method (which is itself faster than [repeating](https://github.com/sindresorhus/repeating)):\n\n```sh\n# 2x\nrepeat-string █████████████████████████ (26,953,977 ops/sec)\nrepeating █████████ (9,855,695 ops/sec)\nnative ██████████████████ (19,453,895 ops/sec)\n\n# 3x\nrepeat-string █████████████████████████ (19,445,252 ops/sec)\nrepeating ███████████ (8,661,565 ops/sec)\nnative ████████████████████ (16,020,598 ops/sec)\n\n# 10x\nrepeat-string █████████████████████████ (23,792,521 ops/sec)\nrepeating █████████ (8,571,332 ops/sec)\nnative ███████████████ (14,582,955 ops/sec)\n\n# 50x\nrepeat-string █████████████████████████ (23,640,179 ops/sec)\nrepeating █████ (5,505,509 ops/sec)\nnative ██████████ (10,085,557 ops/sec)\n\n# 250x\nrepeat-string █████████████████████████ (23,489,618 ops/sec)\nrepeating ████ (3,962,937 ops/sec)\nnative ████████ (7,724,892 ops/sec)\n\n# 2000x\nrepeat-string █████████████████████████ (20,315,172 ops/sec)\nrepeating ████ (3,297,079 ops/sec)\nnative ███████ (6,203,331 ops/sec)\n\n# 20000x\nrepeat-string █████████████████████████ (23,382,915 ops/sec)\nrepeating ███ (2,980,058 ops/sec)\nnative █████ (5,578,808 ops/sec)\n```\n\n**Run the benchmarks**\n\nInstall dev dependencies:\n\n```sh\nnpm i -d && node benchmark\n```\n\n## About\n\n### Related projects\n\n[repeat-element](https://www.npmjs.com/package/repeat-element): Create an array by repeating the given value n times. | [homepage](https://github.com/jonschlinkert/repeat-element \"Create an array by repeating the given value n times.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor**<br/> | \n| --- | --- |\n| 51 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [LinusU](https://github.com/LinusU) |\n| 2 | [tbusser](https://github.com/tbusser) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wooorm](https://github.com/wooorm) |\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](http://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/repeat-string/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 23, 2016._\n<p align=\"center\">\n <a href=\"https://github.com/node-base/base\">\n <img height=\"250\" width=\"250\" src=\"https://raw.githubusercontent.com/node-base/base/master/docs/logo.png\">\n </a>\n</p>\n\n# base [](https://www.npmjs.com/package/base) [](https://npmjs.org/package/base) [](https://npmjs.org/package/base) [](https://travis-ci.org/node-base/base)\n\n> base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save base\n```\n\n## What is Base?\n\nBase is a framework for rapidly creating high quality node.js applications, using plugins like building blocks.\n\n### Guiding principles\n\nThe core team follows these principles to help guide API decisions:\n\n* **Compact API surface**: The smaller the API surface, the easier the library will be to learn and use.\n* **Easy to extend**: Implementors can use any npm package, and write plugins in pure JavaScript. If you're building complex apps, Base simplifies inheritance.\n* **Easy to test**: No special setup should be required to unit test `Base` or base plugins\n\n### Minimal API surface\n\n[The API](#api) was designed to provide only the minimum necessary functionality for creating a useful application, with or without [plugins](#plugins).\n\n**Base core**\n\nBase itself ships with only a handful of [useful methods](#api), such as:\n\n* `.set`: for setting values on the instance\n* `.get`: for getting values from the instance\n* `.has`: to check if a property exists on the instance\n* `.define`: for setting non-enumerable values on the instance\n* `.use`: for adding plugins\n\n**Be generic**\n\nWhen deciding on method to add or remove, we try to answer these questions:\n\n1. Will all or most Base applications need this method?\n2. Will this method encourage practices or enforce conventions that are beneficial to implementors?\n3. Can or should this be done in a plugin instead?\n\n### Composability\n\n**Plugin system**\n\nIt couldn't be easier to extend Base with any features or custom functionality you can think of.\n\nBase plugins are just functions that take an instance of `Base`:\n\n```js\nvar base = new Base();\n\nfunction plugin(base) {\n // do plugin stuff, in pure JavaScript\n}\n// use the plugin\nbase.use(plugin);\n```\n\n**Inheritance**\n\nEasily inherit Base using `.extend`:\n\n```js\nvar Base = require('base');\n\nfunction MyApp() {\n Base.call(this);\n}\nBase.extend(MyApp);\n\nvar app = new MyApp();\napp.set('a', 'b');\napp.get('a');\n//=> 'b';\n```\n\n**Inherit or instantiate with a namespace**\n\nBy default, the `.get`, `.set` and `.has` methods set and get values from the root of the `base` instance. You can customize this using the `.namespace` method exposed on the exported function. For example:\n\n```js\nvar Base = require('base');\n// get and set values on the `base.cache` object\nvar base = Base.namespace('cache');\n\nvar app = base();\napp.set('foo', 'bar');\nconsole.log(app.cache.foo);\n//=> 'bar'\n```\n\n## API\n\n**Usage**\n\n```js\nvar Base = require('base');\nvar app = new Base();\napp.set('foo', 'bar');\nconsole.log(app.foo);\n//=> 'bar'\n```\n\n### [Base](index.js#L44)\n\nCreate an instance of `Base` with the given `config` and `options`.\n\n**Params**\n\n* `config` **{Object}**: If supplied, this object is passed to [cache-base](https://github.com/jonschlinkert/cache-base) to merge onto the the instance upon instantiation.\n* `options` **{Object}**: If supplied, this object is used to initialize the `base.options` object.\n\n**Example**\n\n```js\n// initialize with `config` and `options`\nvar app = new Base({isApp: true}, {abc: true});\napp.set('foo', 'bar');\n\n// values defined with the given `config` object will be on the root of the instance\nconsole.log(app.baz); //=> undefined\nconsole.log(app.foo); //=> 'bar'\n// or use `.get`\nconsole.log(app.get('isApp')); //=> true\nconsole.log(app.get('foo')); //=> 'bar'\n\n// values defined with the given `options` object will be on `app.options\nconsole.log(app.options.abc); //=> true\n```\n\n### [.is](index.js#L107)\n\nSet the given `name` on `app._name` and `app.is*` properties. Used for doing lookups in plugins.\n\n**Params**\n\n* `name` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\napp.is('foo');\nconsole.log(app._name);\n//=> 'foo'\nconsole.log(app.isFoo);\n//=> true\napp.is('bar');\nconsole.log(app.isFoo);\n//=> true\nconsole.log(app.isBar);\n//=> true\nconsole.log(app._name);\n//=> 'bar'\n```\n\n### [.isRegistered](index.js#L145)\n\nReturns true if a plugin has already been registered on an instance.\n\nPlugin implementors are encouraged to use this first thing in a plugin\nto prevent the plugin from being called more than once on the same\ninstance.\n\n**Params**\n\n* `name` **{String}**: The plugin name.\n* `register` **{Boolean}**: If the plugin if not already registered, to record it as being registered pass `true` as the second argument.\n* `returns` **{Boolean}**: Returns true if a plugin is already registered.\n\n**Events**\n\n* `emits`: `plugin` Emits the name of the plugin being registered. Useful for unit tests, to ensure plugins are only registered once.\n\n**Example**\n\n```js\nvar base = new Base();\nbase.use(function(app) {\n if (app.isRegistered('myPlugin')) return;\n // do stuff to `app`\n});\n\n// to also record the plugin as being registered\nbase.use(function(app) {\n if (app.isRegistered('myPlugin', true)) return;\n // do stuff to `app`\n});\n```\n\n### [.use](index.js#L175)\n\nDefine a plugin function to be called immediately upon init. Plugins are chainable and expose the following arguments to the plugin function:\n\n* `app`: the current instance of `Base`\n* `base`: the [first ancestor instance](#base) of `Base`\n\n**Params**\n\n* `fn` **{Function}**: plugin function to call\n* `returns` **{Object}**: Returns the item instance for chaining.\n\n**Example**\n\n```js\nvar app = new Base()\n .use(foo)\n .use(bar)\n .use(baz)\n```\n\n### [.define](index.js#L197)\n\nThe `.define` method is used for adding non-enumerable property on the instance. Dot-notation is **not supported** with `define`.\n\n**Params**\n\n* `key` **{String}**: The name of the property to define.\n* `value` **{any}**\n* `returns` **{Object}**: Returns the instance for chaining.\n\n**Example**\n\n```js\n// arbitrary `render` function using lodash `template`\napp.define('render', function(str, locals) {\n return _.template(str)(locals);\n});\n```\n\n### [.mixin](index.js#L222)\n\nMix property `key` onto the Base prototype. If base is inherited using `Base.extend` this method will be overridden by a new `mixin` method that will only add properties to the prototype of the inheriting application.\n\n**Params**\n\n* `key` **{String}**\n* `val` **{Object|Array}**\n* `returns` **{Object}**: Returns the `base` instance for chaining.\n\n**Example**\n\n```js\napp.mixin('foo', function() {\n // do stuff\n});\n```\n\n### [.base](index.js#L268)\n\nGetter/setter used when creating nested instances of `Base`, for storing a reference to the first ancestor instance. This works by setting an instance of `Base` on the `parent` property of a \"child\" instance. The `base` property defaults to the current instance if no `parent` property is defined.\n\n**Example**\n\n```js\n// create an instance of `Base`, this is our first (\"base\") instance\nvar first = new Base();\nfirst.foo = 'bar'; // arbitrary property, to make it easier to see what's happening later\n\n// create another instance\nvar second = new Base();\n// create a reference to the first instance (`first`)\nsecond.parent = first;\n\n// create another instance\nvar third = new Base();\n// create a reference to the previous instance (`second`)\n// repeat this pattern every time a \"child\" instance is created\nthird.parent = second;\n\n// we can always access the first instance using the `base` property\nconsole.log(first.base.foo);\n//=> 'bar'\nconsole.log(second.base.foo);\n//=> 'bar'\nconsole.log(third.base.foo);\n//=> 'bar'\n// and now you know how to get to third base ;)\n```\n\n### [#use](index.js#L293)\n\nStatic method for adding global plugin functions that will be added to an instance when created.\n\n**Params**\n\n* `fn` **{Function}**: Plugin function to use on each instance.\n* `returns` **{Object}**: Returns the `Base` constructor for chaining\n\n**Example**\n\n```js\nBase.use(function(app) {\n app.foo = 'bar';\n});\nvar app = new Base();\nconsole.log(app.foo);\n//=> 'bar'\n```\n\n### [#extend](index.js#L337)\n\nStatic method for inheriting the prototype and static methods of the `Base` class. This method greatly simplifies the process of creating inheritance-based applications. See [static-extend](https://github.com/jonschlinkert/static-extend) for more details.\n\n**Params**\n\n* `Ctor` **{Function}**: constructor to extend\n* `methods` **{Object}**: Optional prototype properties to mix in.\n* `returns` **{Object}**: Returns the `Base` constructor for chaining\n\n**Example**\n\n```js\nvar extend = cu.extend(Parent);\nParent.extend(Child);\n\n// optional methods\nParent.extend(Child, {\n foo: function() {},\n bar: function() {}\n});\n```\n\n### [#mixin](index.js#L379)\n\nUsed for adding methods to the `Base` prototype, and/or to the prototype of child instances. When a mixin function returns a function, the returned function is pushed onto the `.mixins` array, making it available to be used on inheriting classes whenever `Base.mixins()` is called (e.g. `Base.mixins(Child)`).\n\n**Params**\n\n* `fn` **{Function}**: Function to call\n* `returns` **{Object}**: Returns the `Base` constructor for chaining\n\n**Example**\n\n```js\nBase.mixin(function(proto) {\n proto.foo = function(msg) {\n return 'foo ' + msg;\n };\n});\n```\n\n### [#mixins](index.js#L401)\n\nStatic method for running global mixin functions against a child constructor. Mixins must be registered before calling this method.\n\n**Params**\n\n* `Child` **{Function}**: Constructor function of a child class\n* `returns` **{Object}**: Returns the `Base` constructor for chaining\n\n**Example**\n\n```js\nBase.extend(Child);\nBase.mixins(Child);\n```\n\n### [#inherit](index.js#L420)\n\nSimilar to `util.inherit`, but copies all static properties, prototype properties, and getters/setters from `Provider` to `Receiver`. See [class-utils](https://github.com/jonschlinkert/class-utils#inherit) for more details.\n\n**Params**\n\n* `Receiver` **{Function}**: Receiving (child) constructor\n* `Provider` **{Function}**: Providing (parent) constructor\n* `returns` **{Object}**: Returns the `Base` constructor for chaining\n\n**Example**\n\n```js\nBase.inherit(Foo, Bar);\n```\n\n## In the wild\n\nThe following node.js applications were built with `Base`:\n\n* [assemble](https://github.com/assemble/assemble)\n* [verb](https://github.com/verbose/verb)\n* [generate](https://github.com/generate/generate)\n* [scaffold](https://github.com/jonschlinkert/scaffold)\n* [boilerplate](https://github.com/jonschlinkert/boilerplate)\n\n## Test coverage\n\n```\nStatements : 98.91% ( 91/92 )\nBranches : 92.86% ( 26/28 )\nFunctions : 100% ( 17/17 )\nLines : 98.9% ( 90/91 )\n```\n\n## History\n\n### v0.11.2\n\n* fixes https://github.com/micromatch/micromatch/issues/99\n\n### v0.11.0\n\n**Breaking changes**\n\n* Static `.use` and `.run` methods are now non-enumerable\n\n### v0.9.0\n\n**Breaking changes**\n\n* `.is` no longer takes a function, a string must be passed\n* all remaining `.debug` code has been removed\n* `app._namespace` was removed (related to `debug`)\n* `.plugin`, `.use`, and `.define` no longer emit events\n* `.assertPlugin` was removed\n* `.lazy` was removed\n\n## About\n\n### Related projects\n\n* [base-cwd](https://www.npmjs.com/package/base-cwd): Base plugin that adds a getter/setter for the current working directory. | [homepage](https://github.com/node-base/base-cwd \"Base plugin that adds a getter/setter for the current working directory.\")\n* [base-data](https://www.npmjs.com/package/base-data): adds a `data` method to base-methods. | [homepage](https://github.com/node-base/base-data \"adds a `data` method to base-methods.\")\n* [base-fs](https://www.npmjs.com/package/base-fs): base-methods plugin that adds vinyl-fs methods to your 'base' application for working with the file… [more](https://github.com/node-base/base-fs) | [homepage](https://github.com/node-base/base-fs \"base-methods plugin that adds vinyl-fs methods to your 'base' application for working with the file system, like src, dest, copy and symlink.\")\n* [base-generators](https://www.npmjs.com/package/base-generators): Adds project-generator support to your `base` application. | [homepage](https://github.com/node-base/base-generators \"Adds project-generator support to your `base` application.\")\n* [base-option](https://www.npmjs.com/package/base-option): Adds a few options methods to base, like `option`, `enable` and `disable`. See the readme… [more](https://github.com/node-base/base-option) | [homepage](https://github.com/node-base/base-option \"Adds a few options methods to base, like `option`, `enable` and `disable`. See the readme for the full API.\")\n* [base-pipeline](https://www.npmjs.com/package/base-pipeline): base-methods plugin that adds pipeline and plugin methods for dynamically composing streaming plugin pipelines. | [homepage](https://github.com/node-base/base-pipeline \"base-methods plugin that adds pipeline and plugin methods for dynamically composing streaming plugin pipelines.\")\n* [base-pkg](https://www.npmjs.com/package/base-pkg): Plugin for adding a `pkg` method that exposes pkg-store to your base application. | [homepage](https://github.com/node-base/base-pkg \"Plugin for adding a `pkg` method that exposes pkg-store to your base application.\")\n* [base-plugins](https://www.npmjs.com/package/base-plugins): Adds 'smart plugin' support to your base application. | [homepage](https://github.com/node-base/base-plugins \"Adds 'smart plugin' support to your base application.\")\n* [base-questions](https://www.npmjs.com/package/base-questions): Plugin for base-methods that adds methods for prompting the user and storing the answers on… [more](https://github.com/node-base/base-questions) | [homepage](https://github.com/node-base/base-questions \"Plugin for base-methods that adds methods for prompting the user and storing the answers on a project-by-project basis.\")\n* [base-store](https://www.npmjs.com/package/base-store): Plugin for getting and persisting config values with your base-methods application. Adds a 'store' object… [more](https://github.com/node-base/base-store) | [homepage](https://github.com/node-base/base-store \"Plugin for getting and persisting config values with your base-methods application. Adds a 'store' object that exposes all of the methods from the data-store library. Also now supports sub-stores!\")\n* [base-task](https://www.npmjs.com/package/base-task): base plugin that provides a very thin wrapper around [https://github.com/doowb/composer](https://github.com/doowb/composer) for adding task methods to… [more](https://github.com/node-base/base-task) | [homepage](https://github.com/node-base/base-task \"base plugin that provides a very thin wrapper around <https://github.com/doowb/composer> for adding task methods to your application.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 141 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 30 | [doowb](https://github.com/doowb) | \n| 3 | [charlike](https://github.com/charlike) | \n| 1 | [criticalmash](https://github.com/criticalmash) | \n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) | \n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on September 07, 2017._\n# minizlib\n\nA tiny fast zlib stream built on [minipass](http://npm.im/minipass)\nand Node.js's zlib binding.\n\nThis module was created to serve the needs of\n[node-tar](http://npm.im/tar) v2. If your needs are different, then\nit may not be for you.\n\n## How does this differ from the streams in `require('zlib')`?\n\nFirst, there are no convenience methods to compress or decompress a\nbuffer. If you want those, use the built-in `zlib` module. This is\nonly streams.\n\nThis module compresses and decompresses the data as fast as you feed\nit in. It is synchronous, and runs on the main process thread. Zlib\noperations can be high CPU, but they're very fast, and doing it this\nway means much less bookkeeping and artificial deferral.\n\nNode's built in zlib streams are built on top of `stream.Transform`.\nThey do the maximally safe thing with respect to consistent\nasynchrony, buffering, and backpressure.\n\nThis module _does_ support backpressure, and will buffer output chunks\nthat are not consumed, but is less of a mediator between the input and\noutput. There is no high or low watermarks, no state objects, and so\nartificial async deferrals. It will not protect you from Zalgo.\n\nIf you write, data will be emitted right away. If you write\neverything synchronously in one tick, and you are listening to the\n`data` event to consume it, then it'll all be emitted right away in\nthat same tick. If you want data to be emitted in the next tick, then\nwrite it in the next tick.\n\nIt is thus the responsibility of the reader and writer to manage their\nown consumption and process execution flow.\n\nThe goal is to compress and decompress as fast as possible, even for\nfiles that are too large to store all in one buffer.\n\nThe API is very similar to the built-in zlib module. There are\nclasses that you instantiate with `new` and they are streams that can\nbe piped together.\nuniq\n====\nRemoves all duplicates from an array in place.\n\nUsage\n=====\nFirst install using npm:\n\n npm install uniq\n \nThen use it as follows:\n\n```javascript\n\nvar arr = [1, 1, 2, 2, 3, 5]\n\nrequire(\"uniq\")(arr)\nconsole.log(arr)\n\n//Prints:\n//\n// 1,2,3,5\n//\n```\n\n## `require(\"uniq\")(array[, compare, sorted])`\nRemoves all duplicates from a sorted array in place.\n\n* `array` is the array to remove items from\n* `compare` is an optional comparison function that returns 0 when two items are equal, and something non-zero when they are different. If unspecified, then the default equals will be used.\n* `sorted` if true, then assume array is already sorted\n\n**Returns:** A reference to `array`\n\n**Time Complexity:** `O(array.length * log(arra.length))` or `O(array.length)` if `sorted`\n\n## Why use this instead of underscore.uniq[ue]?\nA few reasons:\n\n* This library updates the array in place without making an extra copy (and so it is faster for large arrays)\n* It also accepts a custom comparison function so you can remove duplicates from arrays containing object\n* It is more modular in the sense that it doesn't come with a bazillion other utility grab bag functions.\n\n# Credits\n(c) 2013 Mikola Lysenko. MIT License\n# JSON 3 #\n\n\n\n[](http://travis-ci.org/bestiejs/json3)\n\n**JSON 3** is a modern JSON implementation compatible with a variety of JavaScript platforms, including Internet Explorer 6, Opera 7, Safari 2, and Netscape 6. The current version is **3.3.2**.\n\n- [Development Version](http://cdnjs.cloudflare.com/ajax/libs/json3/3.3.2/json3.js) *(43 KB; uncompressed with comments)*\n- [Production Version](http://cdnjs.cloudflare.com/ajax/libs/json3/3.3.2/json3.min.js) *(3.5 KB; compressed and `gzip`-ped)*\n\nSpecial thanks to [cdnjs](http://cdnjs.com/libraries/json3/) and [jsDelivr](http://www.jsdelivr.com/#!json3) for hosting CDN copies of JSON 3.\n\n[JSON](http://json.org/) is a language-independent data interchange format based on a loose subset of the JavaScript grammar. Originally popularized by [Douglas Crockford](http://www.crockford.com/), the format was standardized in the [fifth edition](http://es5.github.com/) of the ECMAScript specification. The 5.1 edition, ratified in June 2011, incorporates several modifications to the grammar pertaining to the serialization of dates.\n\nJSON 3 exposes two functions: `stringify()` for [serializing](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/JSON/stringify) a JavaScript value to JSON, and `parse()` for [producing](https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/JSON/parse) a JavaScript value from a JSON source string. It is a **drop-in replacement** for [JSON 2](http://json.org/js). The functions behave exactly as described in the ECMAScript spec, **except** for the date serialization discrepancy noted below.\n\nThe JSON 3 parser does **not** use `eval` or regular expressions. This provides security and performance benefits in obsolete and mobile environments, where the margin is particularly significant. The complete [benchmark suite](http://jsperf.com/json3) is available on [jsPerf](http://jsperf.com/).\n\nThe project is [hosted on GitHub](http://git.io/json3), along with the [unit tests](http://bestiejs.github.io/json3/test/test_browser.html). It is part of the [BestieJS](https://github.com/bestiejs) family, a collection of best-in-class JavaScript libraries that promote cross-platform support, specification precedents, unit testing, and plenty of documentation.\n\n# Changes from JSON 2 #\n\nJSON 3...\n\n* Correctly serializes primitive wrapper objects.\n* Throws a `TypeError` when serializing cyclic structures (JSON 2 recurses until the call stack overflows).\n* Utilizes **feature tests** to detect broken or incomplete *native* JSON implementations (JSON 2 only checks for the presence of the native functions). The tests are only executed once at runtime, so there is no additional performance cost when parsing or serializing values.\n\n**As of v3.2.3**, JSON 3 is compatible with [Prototype](http://prototypejs.org) 1.6.1 and older.\n\nIn contrast to JSON 2, JSON 3 **does not**...\n\n* Add `toJSON()` methods to the `Boolean`, `Number`, and `String` prototypes. These are not part of any standard, and are made redundant by the design of the `stringify()` implementation.\n* Add `toJSON()` or `toISOString()` methods to `Date.prototype`. See the note about date serialization below.\n\n## Date Serialization\n\n**JSON 3 deviates from the specification in one important way**: it does not define `Date#toISOString()` or `Date#toJSON()`. This preserves CommonJS compatibility and avoids polluting native prototypes. Instead, date serialization is performed internally by the `stringify()` implementation: if a date object does not define a custom `toJSON()` method, it is serialized as a [simplified ISO 8601 date-time string](http://es5.github.com/#x15.9.1.15).\n\n**Several native `Date#toJSON()` implementations produce date time strings that do *not* conform to the grammar outlined in the spec**. For instance, all versions of Safari 4, as well as JSON 2, fail to serialize extended years correctly. Furthermore, JSON 2 and older implementations omit the milliseconds from the date-time string (optional in ES 5, but required in 5.1). Finally, in all versions of Safari 4 and 5, serializing an invalid date will produce the string `\"Invalid Date\"`, rather than `null`. Because these environments exhibit other serialization bugs, however, JSON 3 will override the native `stringify()` implementation.\n\nPortions of the date serialization code are adapted from the [`date-shim`](https://github.com/Yaffle/date-shim) project.\n\n# Usage #\n\n## Web Browsers\n\n <script src=\"//cdnjs.cloudflare.com/ajax/libs/json3/3.3.2/json3.min.js\"></script>\n <script>\n JSON.stringify({\"Hello\": 123});\n // => '{\"Hello\":123}'\n JSON.parse(\"[[1, 2, 3], 1, 2, 3, 4]\", function (key, value) {\n if (typeof value == \"number\") {\n value = value % 2 ? \"Odd\" : \"Even\";\n }\n return value;\n });\n // => [[\"Odd\", \"Even\", \"Odd\"], \"Odd\", \"Even\", \"Odd\", \"Even\"]\n </script>\n\n**When used in a web browser**, JSON 3 exposes an additional `JSON3` object containing the `noConflict()` and `runInContext()` functions, as well as aliases to the `stringify()` and `parse()` functions.\n\n### `noConflict` and `runInContext`\n\n* `JSON3.noConflict()` restores the original value of the global `JSON` object and returns a reference to the `JSON3` object.\n* `JSON3.runInContext([context, exports])` initializes JSON 3 using the given `context` object (e.g., `window`, `global`, etc.), or the global object if omitted. If an `exports` object is specified, the `stringify()`, `parse()`, and `runInContext()` functions will be attached to it instead of a new object.\n\n### Asynchronous Module Loaders\n\nJSON 3 is defined as an [anonymous module](https://github.com/amdjs/amdjs-api/wiki/AMD#define-function-) for compatibility with [RequireJS](http://requirejs.org/), [`curl.js`](https://github.com/cujojs/curl), and other asynchronous module loaders.\n\n <script src=\"//cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.js\"></script>\n <script>\n require({\n \"paths\": {\n \"json3\": \"./path/to/json3\"\n }\n }, [\"json3\"], function (JSON) {\n JSON.parse(\"[1, 2, 3]\");\n // => [1, 2, 3]\n });\n </script>\n\nTo avoid issues with third-party scripts, **JSON 3 is exported to the global scope even when used with a module loader**. If this behavior is undesired, `JSON3.noConflict()` can be used to restore the global `JSON` object to its original value.\n\n## CommonJS Environments\n\n var JSON3 = require(\"./path/to/json3\");\n JSON3.parse(\"[1, 2, 3]\");\n // => [1, 2, 3]\n\n## JavaScript Engines\n\n load(\"path/to/json3.js\");\n JSON.stringify({\"Hello\": 123, \"Good-bye\": 456}, [\"Hello\"], \"\\t\");\n // => '{\\n\\t\"Hello\": 123\\n}'\n\n# Compatibility #\n\nJSON 3 has been **tested** with the following web browsers, CommonJS environments, and JavaScript engines.\n\n## Web Browsers\n\n- Windows [Internet Explorer](http://www.microsoft.com/windows/internet-explorer), version 6.0 and higher\n- Mozilla [Firefox](http://www.mozilla.com/firefox), version 1.0 and higher\n- Apple [Safari](http://www.apple.com/safari), version 2.0 and higher\n- [Opera](http://www.opera.com) 7.02 and higher\n- [Mozilla](http://sillydog.org/narchive/gecko.php) 1.0, [Netscape](http://sillydog.org/narchive/) 6.2.3, and [SeaMonkey](http://www.seamonkey-project.org/) 1.0 and higher\n\n## CommonJS Environments\n\n- [Node](http://nodejs.org/) 0.2.6 and higher\n- [RingoJS](http://ringojs.org/) 0.4 and higher\n- [Narwhal](http://narwhaljs.org/) 0.3.2 and higher\n\n## JavaScript Engines\n\n- Mozilla [Rhino](http://www.mozilla.org/rhino) 1.5R5 and higher\n- WebKit [JSC](https://trac.webkit.org/wiki/JSC)\n- Google [V8](http://code.google.com/p/v8)\n\n## Known Incompatibilities\n\n* Attempting to serialize the `arguments` object may produce inconsistent results across environments due to specification version differences. As a workaround, please convert the `arguments` object to an array first: `JSON.stringify([].slice.call(arguments, 0))`.\n\n## Required Native Methods\n\nJSON 3 assumes that the following methods exist and function as described in the ECMAScript specification:\n\n- The `Number`, `String`, `Array`, `Object`, `Date`, `SyntaxError`, and `TypeError` constructors.\n- `String.fromCharCode`\n- `Object#toString`\n- `Function#call`\n- `Math.floor`\n- `Number#toString`\n- `Date#valueOf`\n- `String.prototype`: `indexOf`, `charCodeAt`, `charAt`, `slice`.\n- `Array.prototype`: `push`, `pop`, `join`.\n\n# Contribute #\n\nCheck out a working copy of the JSON 3 source code with [Git](http://git-scm.com/):\n\n $ git clone git://github.com/bestiejs/json3.git\n $ cd json3\n\nIf you'd like to contribute a feature or bug fix, you can [fork](http://help.github.com/fork-a-repo/) JSON 3, commit your changes, and [send a pull request](http://help.github.com/send-pull-requests/). Please make sure to update the unit tests in the `test` directory as well.\n\nAlternatively, you can use the [GitHub issue tracker](https://github.com/bestiejs/json3/issues) to submit bug reports, feature requests, and questions, or send tweets to [@kitcambridge](http://twitter.com/kitcambridge).\n\nJSON 3 is released under the [MIT License](http://kit.mit-license.org/).\n# loose-envify\n\n[](https://travis-ci.org/zertosh/loose-envify)\n\nFast (and loose) selective `process.env` replacer using [js-tokens](https://github.com/lydell/js-tokens) instead of an AST. Works just like [envify](https://github.com/hughsk/envify) but much faster.\n\n## Gotchas\n\n* Doesn't handle broken syntax.\n* Doesn't look inside embedded expressions in template strings.\n - **this won't work:**\n ```js\n console.log(`the current env is ${process.env.NODE_ENV}`);\n ```\n* Doesn't replace oddly-spaced or oddly-commented expressions.\n - **this won't work:**\n ```js\n console.log(process./*won't*/env./*work*/NODE_ENV);\n ```\n\n## Usage/Options\n\nloose-envify has the exact same interface as [envify](https://github.com/hughsk/envify), including the CLI.\n\n## Benchmark\n\n```\nenvify:\n\n $ for i in {1..5}; do node bench/bench.js 'envify'; done\n 708ms\n 727ms\n 791ms\n 719ms\n 720ms\n\nloose-envify:\n\n $ for i in {1..5}; do node bench/bench.js '../'; done\n 51ms\n 52ms\n 52ms\n 52ms\n 52ms\n```\n# parseurl\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-image]][node-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nParse a URL with memoization.\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install parseurl\n```\n\n## API\n\n```js\nvar parseurl = require('parseurl')\n```\n\n### parseurl(req)\n\nParse the URL of the given request object (looks at the `req.url` property)\nand return the result. The result is the same as `url.parse` in Node.js core.\nCalling this function multiple times on the same `req` where `req.url` does\nnot change will return a cached parsed object, rather than parsing again.\n\n### parseurl.original(req)\n\nParse the original URL of the given request object and return the result.\nThis works by trying to parse `req.originalUrl` if it is a string, otherwise\nparses `req.url`. The result is the same as `url.parse` in Node.js core.\nCalling this function multiple times on the same `req` where `req.originalUrl`\ndoes not change will return a cached parsed object, rather than parsing again.\n\n## Benchmark\n\n```bash\n$ npm run-script bench\n\n> parseurl@1.3.3 bench nodejs-parseurl\n> node benchmark/index.js\n\n http_parser@2.8.0\n node@10.6.0\n v8@6.7.288.46-node.13\n uv@1.21.0\n zlib@1.2.11\n ares@1.14.0\n modules@64\n nghttp2@1.32.0\n napi@3\n openssl@1.1.0h\n icu@61.1\n unicode@10.0\n cldr@33.0\n tz@2018c\n\n> node benchmark/fullurl.js\n\n Parsing URL \"http://localhost:8888/foo/bar?user=tj&pet=fluffy\"\n\n 4 tests completed.\n\n fasturl x 2,207,842 ops/sec ±3.76% (184 runs sampled)\n nativeurl - legacy x 507,180 ops/sec ±0.82% (191 runs sampled)\n nativeurl - whatwg x 290,044 ops/sec ±1.96% (189 runs sampled)\n parseurl x 488,907 ops/sec ±2.13% (192 runs sampled)\n\n> node benchmark/pathquery.js\n\n Parsing URL \"/foo/bar?user=tj&pet=fluffy\"\n\n 4 tests completed.\n\n fasturl x 3,812,564 ops/sec ±3.15% (188 runs sampled)\n nativeurl - legacy x 2,651,631 ops/sec ±1.68% (189 runs sampled)\n nativeurl - whatwg x 161,837 ops/sec ±2.26% (189 runs sampled)\n parseurl x 4,166,338 ops/sec ±2.23% (184 runs sampled)\n\n> node benchmark/samerequest.js\n\n Parsing URL \"/foo/bar?user=tj&pet=fluffy\" on same request object\n\n 4 tests completed.\n\n fasturl x 3,821,651 ops/sec ±2.42% (185 runs sampled)\n nativeurl - legacy x 2,651,162 ops/sec ±1.90% (187 runs sampled)\n nativeurl - whatwg x 175,166 ops/sec ±1.44% (188 runs sampled)\n parseurl x 14,912,606 ops/sec ±3.59% (183 runs sampled)\n\n> node benchmark/simplepath.js\n\n Parsing URL \"/foo/bar\"\n\n 4 tests completed.\n\n fasturl x 12,421,765 ops/sec ±2.04% (191 runs sampled)\n nativeurl - legacy x 7,546,036 ops/sec ±1.41% (188 runs sampled)\n nativeurl - whatwg x 198,843 ops/sec ±1.83% (189 runs sampled)\n parseurl x 24,244,006 ops/sec ±0.51% (194 runs sampled)\n\n> node benchmark/slash.js\n\n Parsing URL \"/\"\n\n 4 tests completed.\n\n fasturl x 17,159,456 ops/sec ±3.25% (188 runs sampled)\n nativeurl - legacy x 11,635,097 ops/sec ±3.79% (184 runs sampled)\n nativeurl - whatwg x 240,693 ops/sec ±0.83% (189 runs sampled)\n parseurl x 42,279,067 ops/sec ±0.55% (190 runs sampled)\n```\n\n## License\n\n [MIT](LICENSE)\n\n[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/parseurl/master\n[coveralls-url]: https://coveralls.io/r/pillarjs/parseurl?branch=master\n[node-image]: https://badgen.net/npm/node/parseurl\n[node-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/parseurl\n[npm-url]: https://npmjs.org/package/parseurl\n[npm-version-image]: https://badgen.net/npm/v/parseurl\n[travis-image]: https://badgen.net/travis/pillarjs/parseurl/master\n[travis-url]: https://travis-ci.org/pillarjs/parseurl\n```javascript\nvar correct = require('spdx-correct')\nvar assert = require('assert')\n\nassert.equal(correct('mit'), 'MIT')\n\nassert.equal(correct('Apache 2'), 'Apache-2.0')\n\nassert(correct('No idea what license') === null)\n\n// disable upgrade option\nassert(correct('GPL-3.0'), 'GPL-3.0-or-later')\nassert(correct('GPL-3.0', { upgrade: false }), 'GPL-3.0')\n```\n# dns-equal\n\nCompare DNS record strings for equality. Enforces [RFC\n1035](https://tools.ietf.org/html/rfc1035) domain comparison.\n\n[](https://travis-ci.org/watson/dns-equal)\n[](https://github.com/feross/standard)\n\n## Installation\n\n```\nnpm install dns-equal --save\n```\n\n## Usage\n\n```js\nvar dnsEqual = require('dns-equal')\n\nvar domain1 = 'Example.COM'\nvar domain2 = 'example.com'\n\nif (dnsEqual(domain1, domain2)) {\n console.log('The two domains are the same')\n}\n```\n\n## License\n\nMIT\n# Punycode.js [](https://travis-ci.org/bestiejs/punycode.js) [](https://coveralls.io/r/bestiejs/punycode.js) [](https://gemnasium.com/bestiejs/punycode.js)\n\nA robust Punycode converter that fully complies to [RFC 3492](http://tools.ietf.org/html/rfc3492) and [RFC 5891](http://tools.ietf.org/html/rfc5891), and works on nearly all JavaScript platforms.\n\nThis JavaScript library is the result of comparing, optimizing and documenting different open-source implementations of the Punycode algorithm:\n\n* [The C example code from RFC 3492](http://tools.ietf.org/html/rfc3492#appendix-C)\n* [`punycode.c` by _Markus W. Scherer_ (IBM)](http://opensource.apple.com/source/ICU/ICU-400.42/icuSources/common/punycode.c)\n* [`punycode.c` by _Ben Noordhuis_](https://github.com/bnoordhuis/punycode/blob/master/punycode.c)\n* [JavaScript implementation by _some_](http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion/301287#301287)\n* [`punycode.js` by _Ben Noordhuis_](https://github.com/joyent/node/blob/426298c8c1c0d5b5224ac3658c41e7c2a3fe9377/lib/punycode.js) (note: [not fully compliant](https://github.com/joyent/node/issues/2072))\n\nThis project is [bundled](https://github.com/joyent/node/blob/master/lib/punycode.js) with [Node.js v0.6.2+](https://github.com/joyent/node/compare/975f1930b1...61e796decc).\n\n## Installation\n\nVia [npm](http://npmjs.org/) (only required for Node.js releases older than v0.6.2):\n\n```bash\nnpm install punycode\n```\n\nVia [Bower](http://bower.io/):\n\n```bash\nbower install punycode\n```\n\nVia [Component](https://github.com/component/component):\n\n```bash\ncomponent install bestiejs/punycode.js\n```\n\nIn a browser:\n\n```html\n<script src=\"punycode.js\"></script>\n```\n\nIn [Narwhal](http://narwhaljs.org/), [Node.js](http://nodejs.org/), and [RingoJS](http://ringojs.org/):\n\n```js\nvar punycode = require('punycode');\n```\n\nIn [Rhino](http://www.mozilla.org/rhino/):\n\n```js\nload('punycode.js');\n```\n\nUsing an AMD loader like [RequireJS](http://requirejs.org/):\n\n```js\nrequire(\n {\n 'paths': {\n 'punycode': 'path/to/punycode'\n }\n },\n ['punycode'],\n function(punycode) {\n console.log(punycode);\n }\n);\n```\n\n## API\n\n### `punycode.decode(string)`\n\nConverts a Punycode string of ASCII symbols to a string of Unicode symbols.\n\n```js\n// decode domain name parts\npunycode.decode('maana-pta'); // 'mañana'\npunycode.decode('--dqo34k'); // '☃-⌘'\n```\n\n### `punycode.encode(string)`\n\nConverts a string of Unicode symbols to a Punycode string of ASCII symbols.\n\n```js\n// encode domain name parts\npunycode.encode('mañana'); // 'maana-pta'\npunycode.encode('☃-⌘'); // '--dqo34k'\n```\n\n### `punycode.toUnicode(input)`\n\nConverts a Punycode string representing a domain name or an email address to Unicode. Only the Punycoded parts of the input will be converted, i.e. it doesn’t matter if you call it on a string that has already been converted to Unicode.\n\n```js\n// decode domain names\npunycode.toUnicode('xn--maana-pta.com');\n// → 'mañana.com'\npunycode.toUnicode('xn----dqo34k.com');\n// → '☃-⌘.com'\n\n// decode email addresses\npunycode.toUnicode('джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq');\n// → 'джумла@джpумлатест.bрфa'\n```\n\n### `punycode.toASCII(input)`\n\nConverts a Unicode string representing a domain name or an email address to Punycode. Only the non-ASCII parts of the input will be converted, i.e. it doesn’t matter if you call it with a domain that's already in ASCII.\n\n```js\n// encode domain names\npunycode.toASCII('mañana.com');\n// → 'xn--maana-pta.com'\npunycode.toASCII('☃-⌘.com');\n// → 'xn----dqo34k.com'\n\n// encode email addresses\npunycode.toASCII('джумла@джpумлатест.bрфa');\n// → 'джумла@xn--p-8sbkgc5ag7bhce.xn--ba-lmcq'\n```\n\n### `punycode.ucs2`\n\n#### `punycode.ucs2.decode(string)`\n\nCreates an array containing the numeric code point values of each Unicode symbol in the string. While [JavaScript uses UCS-2 internally](https://mathiasbynens.be/notes/javascript-encoding), this function will convert a pair of surrogate halves (each of which UCS-2 exposes as separate characters) into a single code point, matching UTF-16.\n\n```js\npunycode.ucs2.decode('abc');\n// → [0x61, 0x62, 0x63]\n// surrogate pair for U+1D306 TETRAGRAM FOR CENTRE:\npunycode.ucs2.decode('\\uD834\\uDF06');\n// → [0x1D306]\n```\n\n#### `punycode.ucs2.encode(codePoints)`\n\nCreates a string based on an array of numeric code point values.\n\n```js\npunycode.ucs2.encode([0x61, 0x62, 0x63]);\n// → 'abc'\npunycode.ucs2.encode([0x1D306]);\n// → '\\uD834\\uDF06'\n```\n\n### `punycode.version`\n\nA string representing the current Punycode.js version number.\n\n## Unit tests & code coverage\n\nAfter cloning this repository, run `npm install --dev` to install the dependencies needed for Punycode.js development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.\n\nOnce that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, PhantomJS, and web browsers as well, use `grunt test`.\n\nTo generate the code coverage report, use `grunt cover`.\n\nFeel free to fork if you see possible improvements!\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## Contributors\n\n| [](https://twitter.com/jdalton \"Follow @jdalton on Twitter\") |\n|---|\n| [John-David Dalton](http://allyoucanleet.com/) |\n\n## License\n\nPunycode.js is available under the [MIT](https://mths.be/mit) license.\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source. Line numbers in\n this library are 1-based (note that the underlying source map\n specification uses 0-based line numbers -- this library handles the\n translation).\n\n* `column`: The column number in the generated source. Column numbers\n in this library are 0-based.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available. The line number is 1-based.\n\n* `column`: The column number in the original source, or null if this\n information is not available. The column number is 0-based.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: The column number in the original source. The column\n number is 0-based.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source. The line number is\n 1-based.\n\n* `column`: Optional. The column number in the original source. The\n column number is 0-based.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null. The line\n number is 1-based.\n\n* `column`: The column number in the generated source, or null. The\n column number is 0-based.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line. The line number is 1-based.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column. The column number\n is 0-based.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# class-utils [](https://www.npmjs.com/package/class-utils) [](https://npmjs.org/package/class-utils) [](https://npmjs.org/package/class-utils) [](https://travis-ci.org/jonschlinkert/class-utils)\n\n> Utils for working with JavaScript classes and prototype methods.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save class-utils\n```\n\n## Usage\n\n```js\nvar cu = require('class-utils');\n```\n\n## API\n\n### [.has](index.js#L43)\n\nReturns true if an array has any of the given elements, or an object has any of the give keys.\n\n**Params**\n\n* `obj` **{Object}**\n* `val` **{String|Array}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\ncu.has(['a', 'b', 'c'], 'c');\n//=> true\n\ncu.has(['a', 'b', 'c'], ['c', 'z']);\n//=> true\n\ncu.has({a: 'b', c: 'd'}, ['c', 'z']);\n//=> true\n```\n\n### [.hasAll](index.js#L90)\n\nReturns true if an array or object has all of the given values.\n\n**Params**\n\n* `val` **{Object|Array}**\n* `values` **{String|Array}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\ncu.hasAll(['a', 'b', 'c'], 'c');\n//=> true\n\ncu.hasAll(['a', 'b', 'c'], ['c', 'z']);\n//=> false\n\ncu.hasAll({a: 'b', c: 'd'}, ['c', 'z']);\n//=> false\n```\n\n### [.arrayify](index.js#L117)\n\nCast the given value to an array.\n\n**Params**\n\n* `val` **{String|Array}**\n* `returns` **{Array}**\n\n**Example**\n\n```js\ncu.arrayify('foo');\n//=> ['foo']\n\ncu.arrayify(['foo']);\n//=> ['foo']\n```\n\n### [.hasConstructor](index.js#L152)\n\nReturns true if a value has a `contructor`\n\n**Params**\n\n* `value` **{Object}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\ncu.hasConstructor({});\n//=> true\n\ncu.hasConstructor(Object.create(null));\n//=> false\n```\n\n### [.nativeKeys](index.js#L174)\n\nGet the native `ownPropertyNames` from the constructor of the given `object`. An empty array is returned if the object does not have a constructor.\n\n**Params**\n\n* `obj` **{Object}**: Object that has a `constructor`.\n* `returns` **{Array}**: Array of keys.\n\n**Example**\n\n```js\ncu.nativeKeys({a: 'b', b: 'c', c: 'd'})\n//=> ['a', 'b', 'c']\n\ncu.nativeKeys(function(){})\n//=> ['length', 'caller']\n```\n\n### [.getDescriptor](index.js#L208)\n\nReturns property descriptor `key` if it's an \"own\" property of the given object.\n\n**Params**\n\n* `obj` **{Object}**\n* `key` **{String}**\n* `returns` **{Object}**: Returns descriptor `key`\n\n**Example**\n\n```js\nfunction App() {}\nObject.defineProperty(App.prototype, 'count', {\n get: function() {\n return Object.keys(this).length;\n }\n});\ncu.getDescriptor(App.prototype, 'count');\n// returns:\n// {\n// get: [Function],\n// set: undefined,\n// enumerable: false,\n// configurable: false\n// }\n```\n\n### [.copyDescriptor](index.js#L238)\n\nCopy a descriptor from one object to another.\n\n**Params**\n\n* `receiver` **{Object}**\n* `provider` **{Object}**\n* `name` **{String}**\n* `returns` **{Object}**\n\n**Example**\n\n```js\nfunction App() {}\nObject.defineProperty(App.prototype, 'count', {\n get: function() {\n return Object.keys(this).length;\n }\n});\nvar obj = {};\ncu.copyDescriptor(obj, App.prototype, 'count');\n```\n\n### [.copy](index.js#L264)\n\nCopy static properties, prototype properties, and descriptors\nfrom one object to another.\n\n**Params**\n\n* `receiver` **{Object}**\n* `provider` **{Object}**\n* `omit` **{String|Array}**: One or more properties to omit\n* `returns` **{Object}**\n\n### [.inherit](index.js#L299)\n\nInherit the static properties, prototype properties, and descriptors\nfrom of an object.\n\n**Params**\n\n* `receiver` **{Object}**\n* `provider` **{Object}**\n* `omit` **{String|Array}**: One or more properties to omit\n* `returns` **{Object}**\n\n### [.extend](index.js#L343)\n\nReturns a function for extending the static properties, prototype properties, and descriptors from the `Parent` constructor onto `Child` constructors.\n\n**Params**\n\n* `Parent` **{Function}**: Parent ctor\n* `extend` **{Function}**: Optional extend function to handle custom extensions. Useful when updating methods that require a specific prototype.\n* `Child` **{Function}**: Child ctor\n* `proto` **{Object}**: Optionally pass additional prototype properties to inherit.\n* `returns` **{Object}**\n\n**Example**\n\n```js\nvar extend = cu.extend(Parent);\nParent.extend(Child);\n\n// optional methods\nParent.extend(Child, {\n foo: function() {},\n bar: function() {}\n});\n```\n\n### [.bubble](index.js#L356)\n\nBubble up events emitted from static methods on the Parent ctor.\n\n**Params**\n\n* `Parent` **{Object}**\n* `events` **{Array}**: Event names to bubble up\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [define-property](https://www.npmjs.com/package/define-property): Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty. | [homepage](https://github.com/jonschlinkert/define-property \"Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.\")\n* [delegate-properties](https://www.npmjs.com/package/delegate-properties): Deep-clone properties from one object to another and make them non-enumerable, or make existing properties… [more](https://github.com/jonschlinkert/delegate-properties) | [homepage](https://github.com/jonschlinkert/delegate-properties \"Deep-clone properties from one object to another and make them non-enumerable, or make existing properties on an object non-enumerable.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 34 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 8 | [doowb](https://github.com/doowb) |\n| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on January 11, 2018._\nforever-agent\n=============\n\nHTTP Agent that keeps socket connections alive between keep-alive requests. Formerly part of mikeal/request, now a standalone module.\n# es-abstract <sup>[![Version Badge][npm-version-svg]][package-url]</sup>\n\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][npm-badge-png]][package-url]\n\n[![browser support][testling-svg]][testling-url]\n\nECMAScript spec abstract operations.\nWhen different versions of the spec conflict, the default export will be the latest version of the abstract operation.\nAll abstract operations will also be available under an `es5`/`es2015`/`es2016`/`es2017`/`es2018` entry point, and exported property, if you require a specific version.\n\n## Example\n\n```js\nvar ES = require('es-abstract');\nvar assert = require('assert');\n\nassert(ES.isCallable(function () {}));\nassert(!ES.isCallable(/a/g));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[package-url]: https://npmjs.org/package/es-abstract\n[npm-version-svg]: http://versionbadg.es/ljharb/es-abstract.svg\n[travis-svg]: https://travis-ci.org/ljharb/es-abstract.svg\n[travis-url]: https://travis-ci.org/ljharb/es-abstract\n[deps-svg]: https://david-dm.org/ljharb/es-abstract.svg\n[deps-url]: https://david-dm.org/ljharb/es-abstract\n[dev-deps-svg]: https://david-dm.org/ljharb/es-abstract/dev-status.svg\n[dev-deps-url]: https://david-dm.org/ljharb/es-abstract#info=devDependencies\n[testling-svg]: https://ci.testling.com/ljharb/es-abstract.png\n[testling-url]: https://ci.testling.com/ljharb/es-abstract\n[npm-badge-png]: https://nodei.co/npm/es-abstract.png?downloads=true&stars=true\n[license-image]: https://img.shields.io/npm/l/es-abstract.svg\n[license-url]: LICENSE\n[downloads-image]: https://img.shields.io/npm/dm/es-abstract.svg\n[downloads-url]: https://npm-stat.com/charts.html?package=es-abstract\n# figgy-pudding [](https://npm.im/figgy-pudding) [](https://npm.im/figgy-pudding) [](https://travis-ci.org/zkat/figgy-pudding) [](https://ci.appveyor.com/project/zkat/figgy-pudding) [](https://coveralls.io/github/zkat/figgy-pudding?branch=latest)\n\n[`figgy-pudding`](https://github.com/zkat/figgy-pudding) is a small JavaScript\nlibrary for managing and composing cascading options objects -- hiding what\nneeds to be hidden from each layer, without having to do a lot of manual munging\nand passing of options.\n\n### The God Object is Dead!\n### Now Bring Us Some Figgy Pudding!\n\n## Install\n\n`$ npm install figgy-pudding`\n\n## Table of Contents\n\n* [Example](#example)\n* [Features](#features)\n* [API](#api)\n * [`figgyPudding(spec)`](#figgy-pudding)\n * [`PuddingFactory(values)`](#pudding-factory)\n * [`opts.get()`](#opts-get)\n * [`opts.concat()`](#opts-concat)\n * [`opts.toJSON()`](#opts-to-json)\n * [`opts.forEach()`](#opts-for-each)\n * [`opts[Symbol.iterator]()`](#opts-symbol-iterator)\n * [`opts.entries()`](#opts-entries)\n * [`opts.keys()`](#opts-keys)\n * [`opts.value()`](#opts-values)\n\n### Example\n\n```javascript\n// print-package.js\nconst fetch = require('./fetch.js')\nconst puddin = require('figgy-pudding')\n\nconst PrintOpts = puddin({\n json: { default: false }\n})\n\nasync function printPkg (name, opts) {\n // Expected pattern is to call this in every interface function. If `opts` is\n // not passed in, it will automatically create an (empty) object for it.\n opts = PrintOpts(opts)\n const uri = `https://registry.npmjs.com/${name}`\n const res = await fetch(uri, opts.concat({\n // Add or override any passed-in configs and pass them down.\n log: customLogger\n }))\n // The following would throw an error, because it's not in PrintOpts:\n // console.log(opts.log)\n if (opts.json) {\n return res.json()\n } else {\n return res.text()\n }\n}\n\nconsole.log(await printPkg('figgy', {\n // Pass in *all* configs at the toplevel, as a regular object.\n json: true,\n cache: './tmp-cache'\n}))\n```\n\n```javascript\n// fetch.js\nconst puddin = require('figgy-pudding')\n\nconst FetchOpts = puddin({\n log: { default: require('npmlog') },\n cache: {}\n})\n\nmodule.exports = async function (..., opts) {\n opts = FetchOpts(opts)\n}\n```\n\n### Features\n\n* hide options from layer that didn't ask for it\n* shared multi-layer options\n* make sure `opts` argument is available\n* transparent key access like normal keys, through a Proxy. No need for`.get()`!\n* default values\n* key aliases\n* arbitrary key filter functions\n* key/value iteration\n* serialization\n* 100% test coverage using `tap --100`\n\n### API\n\n#### <a name=\"figgy-pudding\"></a> `> figgyPudding({ key: { default: val } | String }, [opts]) -> PuddingFactory`\n\nDefines an Options constructor that can be used to collect only the needed\noptions.\n\nAn optional `default` property for specs can be used to specify default values\nif nothing was passed in.\n\nIf the value for a spec is a string, it will be treated as an alias to that\nother key.\n\n##### Example\n\n```javascript\nconst MyAppOpts = figgyPudding({\n lg: 'log',\n log: {\n default: () => require('npmlog')\n },\n cache: {}\n})\n```\n\n#### <a name=\"pudding-factory\"></a> `> PuddingFactory(...providers) -> FiggyPudding{}`\n\nInstantiates an options object defined by `figgyPudding()`, which uses\n`providers`, in order, to find requested properties.\n\nEach provider can be either a plain object, a `Map`-like object (that is, one\nwith a `.get()` method) or another figgyPudding `Opts` object.\n\nWhen nesting `Opts` objects, their properties will not become available to the\nnew object, but any further nested `Opts` that reference that property _will_ be\nable to read from their grandparent, as long as they define that key. Default\nvalues for nested `Opts` parents will be used, if found.\n\n##### Example\n\n```javascript\nconst ReqOpts = figgyPudding({\n follow: {}\n})\n\nconst opts = ReqOpts({\n follow: true,\n log: require('npmlog')\n})\n\nopts.follow // => true\nopts.log // => Error: ReqOpts does not define `log`\n\nconst MoreOpts = figgyPudding({\n log: {}\n})\nMoreOpts(opts).log // => npmlog object (passed in from original plain obj)\nMoreOpts(opts).follow // => Error: MoreOpts does not define `follow`\n```\n\n#### <a name=\"opts-get\"></a> `> opts.get(key) -> Value`\n\nGets a value from the options object.\n\n##### Example\n\n```js\nconst opts = MyOpts(config)\nopts.get('foo') // value of `foo`\nopts.foo // Proxy-based access through `.get()`\n```\n\n#### <a name=\"opts-concat\"></a> `> opts.concat(...moreProviders) -> FiggyPudding{}`\n\nCreates a new opts object of the same type as `opts` with additional providers.\nProviders further to the right shadow providers to the left, with properties in\nthe original `opts` being shadows by the new providers.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1})\nopts.get('x') // 1\nopts.concat({x: 2}).get('x') // 2\nopts.get('x') // 1 (original opts object left intact)\n```\n\n#### <a name=\"opts-to-json\"></a> `> opts.toJSON() -> Value`\n\nConverts `opts` to a plain, JSON-stringifiable JavaScript value. Used internally\nby JavaScript to get `JSON.stringify()` working.\n\nOnly keys that are readable by the current pudding type will be serialized.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1})\nopts.toJSON() // {x: 1}\nJSON.stringify(opts) // '{\"x\":1}'\n```\n\n#### <a name=\"opts-for-each\"></a> `> opts.forEach((value, key, opts) => {}, thisArg) -> undefined`\n\nIterates over the values of `opts`, limited to the keys readable by the current\npudding type. `thisArg` will be used to set the `this` argument when calling the\n`fn`.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1, y: 2})\nopts.forEach((value, key) => console.log(key, '=', value))\n```\n\n#### <a name=\"opts-entries\"></a> `> opts.entries() -> Iterator<[[key, value], ...]>`\n\nReturns an iterator that iterates over the keys and values in `opts`, limited to\nthe keys readable by the current pudding type. Each iteration returns an array\nof `[key, value]`.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1, y: 2})\n[...opts({x: 1, y: 2}).entries()] // [['x', 1], ['y', 2]]\n```\n\n#### <a name=\"opts-symbol-iterator\"></a> `> opts[Symbol.iterator]() -> Iterator<[[key, value], ...]>`\n\nReturns an iterator that iterates over the keys and values in `opts`, limited to\nthe keys readable by the current pudding type. Each iteration returns an array\nof `[key, value]`. Makes puddings work natively with JS iteration mechanisms.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1, y: 2})\n[...opts({x: 1, y: 2})] // [['x', 1], ['y', 2]]\nfor (let [key, value] of opts({x: 1, y: 2})) {\n console.log(key, '=', value)\n}\n```\n\n#### <a name=\"opts-keys\"></a> `> opts.keys() -> Iterator<[key, ...]>`\n\nReturns an iterator that iterates over the keys in `opts`, limited to the keys\nreadable by the current pudding type.\n\n##### Example\n\n```js\nconst opts = MyOpts({x: 1, y: 2})\n[...opts({x: 1, y: 2}).keys()] // ['x', 'y']\n```\n\n#### <a name=\"opts-values\"></a> `> opts.values() -> Iterator<[value, ...]>`\n\nReturns an iterator that iterates over the values in `opts`, limited to the keys\nreadable by the current pudding type.\n\n##### Example\n'\n```js\nconst opts = MyOpts({x: 1, y: 2})\n[...opts({x: 1, y: 2}).values()] // [1, 2]\n```\n# IP \n[](https://www.npmjs.com/package/ip) \n\nIP address utilities for node.js\n\n## Installation\n\n### npm\n```shell\nnpm install ip\n```\n\n### git\n\n```shell\ngit clone https://github.com/indutny/node-ip.git\n```\n \n## Usage\nGet your ip address, compare ip addresses, validate ip addresses, etc.\n\n```js\nvar ip = require('ip');\n\nip.address() // my ip address\nip.isEqual('::1', '::0:1'); // true\nip.toBuffer('127.0.0.1') // Buffer([127, 0, 0, 1])\nip.toString(new Buffer([127, 0, 0, 1])) // 127.0.0.1\nip.fromPrefixLen(24) // 255.255.255.0\nip.mask('192.168.1.134', '255.255.255.0') // 192.168.1.0\nip.cidr('192.168.1.134/26') // 192.168.1.128\nip.not('255.255.255.0') // 0.0.0.255\nip.or('192.168.1.134', '0.0.0.255') // 192.168.1.255\nip.isPrivate('127.0.0.1') // true\nip.isV4Format('127.0.0.1'); // true\nip.isV6Format('::ffff:127.0.0.1'); // true\n\n// operate on buffers in-place\nvar buf = new Buffer(128);\nvar offset = 64;\nip.toBuffer('127.0.0.1', buf, offset); // [127, 0, 0, 1] at offset 64\nip.toString(buf, offset, 4); // '127.0.0.1'\n\n// subnet information\nip.subnet('192.168.1.134', '255.255.255.192')\n// { networkAddress: '192.168.1.128',\n// firstAddress: '192.168.1.129',\n// lastAddress: '192.168.1.190',\n// broadcastAddress: '192.168.1.191',\n// subnetMask: '255.255.255.192',\n// subnetMaskLength: 26,\n// numHosts: 62,\n// length: 64,\n// contains: function(addr){...} }\nip.cidrSubnet('192.168.1.134/26')\n// Same as previous.\n\n// range checking\nip.cidrSubnet('192.168.1.134/26').contains('192.168.1.190') // true\n\n// ipv4 long conversion\nip.toLong('127.0.0.1'); // 2130706433\nip.fromLong(2130706433); // '127.0.0.1'\n```\n\n### License\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2012.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers) \n[](#sponsors)\n\nA tiny node.js debugging utility modelled after node core's debugging technique.\n\n**Discussion around the V3 API is under way [here](https://github.com/visionmedia/debug/issues/370)**\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample _app.js_:\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %s', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample _worker.js_:\n\n```js\nvar debug = require('debug')('worker');\n\nsetInterval(function(){\n debug('doing some work');\n}, 1000);\n```\n\n The __DEBUG__ environment variable is then used to enable these based on space or comma-delimited names. Here are some examples:\n\n \n\n \n\n#### Windows note\n\n On Windows the environment variable is set using the `set` command.\n\n ```cmd\n set DEBUG=*,-not_this\n ```\n\n Note that PowerShell uses different syntax to set environment variables.\n\n ```cmd\n $env:DEBUG = \"*,-not_this\"\n ```\n\nThen, run the program to be debugged as usual.\n\n## Millisecond diff\n\n When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n \n\n When stdout is not a TTY, `Date#toUTCString()` is used, making it more useful for logging the debug information as shown below:\n\n \n\n## Conventions\n\n If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\".\n\n## Wildcards\n\n The `*` character may be used as a wildcard. Suppose for example your library has debuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\", instead of listing all three with `DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do `DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\n You can also exclude specific debuggers by prefixing them with a \"-\" character. For example, `DEBUG=*,-connect:*` would include all debuggers except those starting with \"connect:\".\n\n## Environment Variables\n\n When running through Node.js, you can set a few environment variables that will\n change the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n __Note:__ The environment variables beginning with `DEBUG_` end up being\n converted into an Options object that gets used with `%o`/`%O` formatters.\n See the Node.js documentation for\n [`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\n for the complete list.\n\n## Formatters\n\n Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. Below are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\n You can add custom formatters by extending the `debug.formatters` object. For example, if you wanted to add support for rendering a Buffer as hex with `%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser support\n You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\n or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\n if you don't want to build it yourself.\n\n Debug's enable state is currently persisted by `localStorage`.\n Consider the situation shown below where you have `worker:a` and `worker:b`,\n and wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n#### Web Inspector Colors\n\n Colors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\n option. These are WebKit web inspectors, Firefox ([since version\n 31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\n and the Firebug plugin for Firefox (any version).\n\n Colored output looks something like:\n\n \n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample _stdout.js_:\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n \n## Backers\n\nSupport us with a monthly donation and help us continue our activities. 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[[Become a sponsor](https://opencollective.com/debug#sponsor)]\n\n<a href=\"https://opencollective.com/debug/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/5/avatar.svg\"></a>\n<a 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src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2016 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# indexes-of\n\nlike Array/String#indexOf but return all the indexes in an array.\n\n``` js\nvar indexesOf = require('indexes-of')\n\nvar twosIndexes = indexesOf([1, 2, 3, 4, 5, 4, 3, 2, 1], 2)\n\nconsole.log(twosIndexes)\n\n// [1, 7]\n\n```\n\n# Haiku\n\n* A 5 line module.\n* But the tests are 40 lines.\n* npm publish.\n\n## License\n\nMIT\n# readable-stream\n\n***Node-core v8.11.1 streams for userland*** [](https://travis-ci.org/nodejs/readable-stream)\n\n[](https://nodei.co/npm/readable-stream/)\n[](https://nodei.co/npm/readable-stream/)\n\n[](https://saucelabs.com/u/readable-stream)\n\n```bash\nnpm install --save readable-stream\n```\n\n***Node-core streams for userland***\n\nThis package is a mirror of the Streams2 and Streams3 implementations in\nNode-core.\n\nFull documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.11.1/docs/api/stream.html).\n\nIf you want to guarantee a stable streams base, regardless of what version of\nNode you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *\"stream\"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).\n\nAs of version 2.0.0 **readable-stream** uses semantic versioning.\n\n# Streams Working Group\n\n`readable-stream` is maintained by the Streams Working Group, which\noversees the development and maintenance of the Streams API within\nNode.js. The responsibilities of the Streams Working Group include:\n\n* Addressing stream issues on the Node.js issue tracker.\n* Authoring and editing stream documentation within the Node.js project.\n* Reviewing changes to stream subclasses within the Node.js project.\n* Redirecting changes to streams from the Node.js project to this\n project.\n* Assisting in the implementation of stream providers within Node.js.\n* Recommending versions of `readable-stream` to be included in Node.js.\n* Messaging about the future of streams to give the community advance\n notice of changes.\n\n<a name=\"members\"></a>\n## Team Members\n\n* **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) <christopher.s.dickinson@gmail.com>\n - Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B\n* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) <calvin.metcalf@gmail.com>\n - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242\n* **Rod Vagg** ([@rvagg](https://github.com/rvagg)) <rod@vagg.org>\n - Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D\n* **Sam Newman** ([@sonewman](https://github.com/sonewman)) <newmansam@outlook.com>\n* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) <mathiasbuus@gmail.com>\n* **Domenic Denicola** ([@domenic](https://github.com/domenic)) <d@domenic.me>\n* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) <matteo.collina@gmail.com>\n - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E\n* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) <shestak.irina@gmail.com>\n# lodash.assign v4.2.0\n\nThe [lodash](https://lodash.com/) method `_.assign` exported as a [Node.js](https://nodejs.org/) module.\n\n## Installation\n\nUsing npm:\n```bash\n$ {sudo -H} npm i -g npm\n$ npm i --save lodash.assign\n```\n\nIn Node.js:\n```js\nvar assign = require('lodash.assign');\n```\n\nSee the [documentation](https://lodash.com/docs#assign) or [package source](https://github.com/lodash/lodash/blob/4.2.0-npm-packages/lodash.assign) for more details.\n# isexe\n\nMinimal module to check if a file is executable, and a normal file.\n\nUses `fs.stat` and tests against the `PATHEXT` environment variable on\nWindows.\n\n## USAGE\n\n```javascript\nvar isexe = require('isexe')\nisexe('some-file-name', function (err, isExe) {\n if (err) {\n console.error('probably file does not exist or something', err)\n } else if (isExe) {\n console.error('this thing can be run')\n } else {\n console.error('cannot be run')\n }\n})\n\n// same thing but synchronous, throws errors\nvar isExe = isexe.sync('some-file-name')\n\n// treat errors as just \"not executable\"\nisexe('maybe-missing-file', { ignoreErrors: true }, callback)\nvar isExe = isexe.sync('maybe-missing-file', { ignoreErrors: true })\n```\n\n## API\n\n### `isexe(path, [options], [callback])`\n\nCheck if the path is executable. If no callback provided, and a\nglobal `Promise` object is available, then a Promise will be returned.\n\nWill raise whatever errors may be raised by `fs.stat`, unless\n`options.ignoreErrors` is set to true.\n\n### `isexe.sync(path, [options])`\n\nSame as `isexe` but returns the value and throws any errors raised.\n\n### Options\n\n* `ignoreErrors` Treat all errors as \"no, this is not executable\", but\n don't raise them.\n* `uid` Number to use as the user id\n* `gid` Number to use as the group id\n* `pathExt` List of path extensions to use instead of `PATHEXT`\n environment variable on Windows.\n# extsprintf: extended POSIX-style sprintf\n\nStripped down version of s[n]printf(3c). We make a best effort to throw an\nexception when given a format string we don't understand, rather than ignoring\nit, so that we won't break existing programs if/when we go implement the rest\nof this.\n\nThis implementation currently supports specifying\n\n* field alignment ('-' flag),\n* zero-pad ('0' flag)\n* always show numeric sign ('+' flag),\n* field width\n* conversions for strings, decimal integers, and floats (numbers).\n* argument size specifiers. These are all accepted but ignored, since\n Javascript has no notion of the physical size of an argument.\n\nEverything else is currently unsupported, most notably: precision, unsigned\nnumbers, non-decimal numbers, and characters.\n\nBesides the usual POSIX conversions, this implementation supports:\n\n* `%j`: pretty-print a JSON object (using node's \"inspect\")\n* `%r`: pretty-print an Error object\n\n# Example\n\nFirst, install it:\n\n # npm install extsprintf\n\nNow, use it:\n\n var mod_extsprintf = require('extsprintf');\n console.log(mod_extsprintf.sprintf('hello %25s', 'world'));\n\noutputs:\n\n hello world\n\n# Also supported\n\n**printf**: same args as sprintf, but prints the result to stdout\n\n**fprintf**: same args as sprintf, preceded by a Node stream. Prints the result\nto the given stream.\n# vary\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nManipulate the HTTP Vary header\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): \n\n```sh\n$ npm install vary\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar vary = require('vary')\n```\n\n### vary(res, field)\n\nAdds the given header `field` to the `Vary` response header of `res`.\nThis can be a string of a single field, a string of a valid `Vary`\nheader, or an array of multiple fields.\n\nThis will append the header if not already listed, otherwise leaves\nit listed in the current location.\n\n<!-- eslint-disable no-undef -->\n\n```js\n// Append \"Origin\" to the Vary header of the response\nvary(res, 'Origin')\n```\n\n### vary.append(header, field)\n\nAdds the given header `field` to the `Vary` response header string `header`.\nThis can be a string of a single field, a string of a valid `Vary` header,\nor an array of multiple fields.\n\nThis will append the header if not already listed, otherwise leaves\nit listed in the current location. The new header string is returned.\n\n<!-- eslint-disable no-undef -->\n\n```js\n// Get header string appending \"Origin\" to \"Accept, User-Agent\"\nvary.append('Accept, User-Agent', 'Origin')\n```\n\n## Examples\n\n### Updating the Vary header when content is based on it\n\n```js\nvar http = require('http')\nvar vary = require('vary')\n\nhttp.createServer(function onRequest (req, res) {\n // about to user-agent sniff\n vary(res, 'User-Agent')\n\n var ua = req.headers['user-agent'] || ''\n var isMobile = /mobi|android|touch|mini/i.test(ua)\n\n // serve site, depending on isMobile\n res.setHeader('Content-Type', 'text/html')\n res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user')\n})\n```\n\n## Testing\n\n```sh\n$ npm test\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/vary.svg\n[npm-url]: https://npmjs.org/package/vary\n[node-version-image]: https://img.shields.io/node/v/vary.svg\n[node-version-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/jshttp/vary/master.svg\n[travis-url]: https://travis-ci.org/jshttp/vary\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/vary/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/vary\n[downloads-image]: https://img.shields.io/npm/dm/vary.svg\n[downloads-url]: https://npmjs.org/package/vary\n# Array Flatten\n\n[![NPM version][npm-image]][npm-url]\n[![NPM downloads][downloads-image]][downloads-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n\n> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.\n\n## Installation\n\n```\nnpm install array-flatten --save\n```\n\n## Usage\n\n```javascript\nvar flatten = require('array-flatten')\n\nflatten([1, [2, [3, [4, [5], 6], 7], 8], 9])\n//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]\n\nflatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)\n//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]\n\n(function () {\n flatten(arguments) //=> [1, 2, 3]\n})(1, [2, 3])\n```\n\n## License\n\nMIT\n\n[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat\n[npm-url]: https://npmjs.org/package/array-flatten\n[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat\n[downloads-url]: https://npmjs.org/package/array-flatten\n[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat\n[travis-url]: https://travis-ci.org/blakeembrey/array-flatten\n[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat\n[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master\n[`core-js-compat` package](https://github.com/zloirock/core-js/packages/core-js-compat) contains data about the necessity of [`core-js`](https://github.com/zloirock/core-js) modules and API for getting a list of required core-js modules by browserslist query.\n\n```js\nconst {\n list, // array of required modules\n targets, // object with targets for each module\n} = require('core-js-compat')({\n targets: '> 2.5%', // browserslist query\n filter: 'es.', // optional filter - string-prefix, regexp or list of modules\n});\n\nconsole.log(targets);\n/* =>\n{\n 'es.symbol.description': { ios: '12.0-12.1' },\n 'es.array.reverse': { ios: '12.0-12.1' },\n 'es.string.replace': { firefox: '63', ios: '12.0-12.1' },\n 'es.string.trim': { ios: '12.0-12.1' },\n 'es.promise': { firefox: '63' },\n 'es.promise.finally': { firefox: '63' },\n 'es.array-buffer.slice': { ios: '12.0-12.1' },\n 'es.typed-array.int8-array': { ios: '12.0-12.1' },\n 'es.typed-array.uint8-array': { ios: '12.0-12.1' },\n 'es.typed-array.uint8-clamped-array': { ios: '12.0-12.1' },\n 'es.typed-array.int16-array': { ios: '12.0-12.1' },\n 'es.typed-array.uint16-array': { ios: '12.0-12.1' },\n 'es.typed-array.int32-array': { ios: '12.0-12.1' },\n 'es.typed-array.uint32-array': { ios: '12.0-12.1' },\n 'es.typed-array.float32-array': { ios: '12.0-12.1' },\n 'es.typed-array.float64-array': { ios: '12.0-12.1' },\n 'es.typed-array.from': { ios: '12.0-12.1' },\n 'es.typed-array.of': { ios: '12.0-12.1' }\n}\n*/\n```\n\nIf you want to add new / update data about modules required for target engines, [follow this instruction](https://github.com/zloirock/core-js/blob/master/CONTRIBUTING.md#updating-core-js-compat-data).\n# is-data-descriptor [](https://www.npmjs.com/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://travis-ci.org/jonschlinkert/is-data-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript data descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-data-descriptor\n```\n\n## Usage\n\n```js\nvar isDataDesc = require('is-data-descriptor');\n```\n\n## Examples\n\n`true` when the descriptor has valid properties with valid values.\n\n```js\n// `value` can be anything\nisDataDesc({value: 'foo'})\nisDataDesc({value: function() {}})\nisDataDesc({value: true})\n//=> true\n```\n\n`false` when not an object\n\n```js\nisDataDesc('a')\n//=> false\nisDataDesc(null)\n//=> false\nisDataDesc([])\n//=> false\n```\n\n`false` when the object has invalid properties\n\n```js\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', get: function(){}})\n//=> false\nisDataDesc({get: function(){}, value: 'foo'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDataDesc({value: 'foo', enumerable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', configurable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', writable: 'foo'})\n//=> false\n```\n\n## Valid properties\n\nThe only valid data descriptor properties are the following:\n\n* `configurable` (required)\n* `enumerable` (required)\n* `value` (optional)\n* `writable` (optional)\n\nTo be a valid data descriptor, either `value` or `writable` must be defined.\n\n**Invalid properties**\n\nA descriptor may have additional _invalid_ properties (an error will **not** be thrown).\n\n```js\nvar foo = {};\n\nObject.defineProperty(foo, 'bar', {\n enumerable: true,\n whatever: 'blah', // invalid, but doesn't cause an error\n get: function() {\n return 'baz';\n }\n});\n\nconsole.log(foo.bar);\n//=> 'baz'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 21 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n<div align=\"center\">\n <img width=\"180\" height=\"180\" vspace=\"20\"\n src=\"https://cdn.worldvectorlogo.com/logos/css-3.svg\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\"\n src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n</div>\n\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n[![size][size]][size-url]\n\n# css-loader\n\nThe `css-loader` interprets `@import` and `url()` like `import/require()` and will resolve them.\n\n## Getting Started\n\nTo begin, you'll need to install `css-loader`:\n\n```console\nnpm install --save-dev css-loader\n```\n\nThen add the plugin to your `webpack` config. For example:\n\n**file.js**\n\n```js\nimport css from 'file.css';\n```\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: ['style-loader', 'css-loader'],\n },\n ],\n },\n};\n```\n\nGood loaders for requiring your assets are the [file-loader](https://github.com/webpack/file-loader) and the [url-loader](https://github.com/webpack/url-loader) which you should specify in your config (see [below](https://github.com/webpack-contrib/css-loader#assets)).\n\nAnd run `webpack` via your preferred method.\n\n### `toString`\n\nYou can also use the css-loader results directly as a string, such as in Angular's component style.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: ['to-string-loader', 'css-loader'],\n },\n ],\n },\n};\n```\n\nor\n\n```js\nconst css = require('./test.css').toString();\n\nconsole.log(css); // {String}\n```\n\nIf there are SourceMaps, they will also be included in the result string.\n\nIf, for one reason or another, you need to extract CSS as a\nplain string resource (i.e. not wrapped in a JS module) you\nmight want to check out the [extract-loader](https://github.com/peerigon/extract-loader).\nIt's useful when you, for instance, need to post process the CSS as a string.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: [\n 'handlebars-loader', // handlebars loader expects raw resource string\n 'extract-loader',\n 'css-loader',\n ],\n },\n ],\n },\n};\n```\n\n## Options\n\n| Name | Type | Default | Description |\n| :-----------------------------------------: | :-------------------: | :-------------: | :----------------------------------------------------------------------- |\n| **[`url`](#url)** | `{Boolean\\|Function}` | `true` | Enable/Disable `url()` handling |\n| **[`import`](#import)** | `{Boolean\\/Function}` | `true` | Enable/Disable @import handling |\n| **[`modules`](#modules)** | `{Boolean\\|String}` | `false` | Enable/Disable CSS Modules and setup mode |\n| **[`localIdentName`](#localidentname)** | `{String}` | `[hash:base64]` | Configure the generated ident |\n| **[`context`](#context)** | `{String}` | `undefined` | Allow to redefine basic loader context for local ident name |\n| **[`hashPrefix`](#hashprefix)** | `{String}` | `undefined` | Allow to add custom hash to generate more unique classes |\n| **[`getLocalIdent`](#getlocalident)** | `{Function}` | `undefined` | Configure the function to generate classname based on a different schema |\n| **[`sourceMap`](#sourcemap)** | `{Boolean}` | `false` | Enable/Disable Sourcemaps |\n| **[`camelCase`](#camelcase)** | `{Boolean\\|String}` | `false` | Export Classnames in CamelCase |\n| **[`importLoaders`](#importloaders)** | `{Number}` | `0` | Number of loaders applied before CSS loader |\n| **[`exportOnlyLocals`](#exportonlylocals)** | `{Boolean}` | `false` | Export only locals |\n\n### `url`\n\nType: `Boolean|Function`\nDefault: `true`\n\nControl `url()` resolving. Absolute URLs and root-relative URLs are not resolving.\n\nExamples resolutions:\n\n```\nurl(image.png) => require('./image.png')\nurl('image.png') => require('./image.png')\nurl(./image.png) => require('./image.png')\nurl('./image.png') => require('./image.png')\nurl('http://dontwritehorriblecode.com/2112.png') => require('http://dontwritehorriblecode.com/2112.png')\nimage-set(url('image2x.png') 1x, url('image1x.png') 2x) => require('./image1x.png') and require('./image2x.png')\n```\n\nTo import assets from a `node_modules` path (include `resolve.modules`) and for `alias`, prefix it with a `~`:\n\n```\nurl(~module/image.png) => require('module/image.png')\nurl('~module/image.png') => require('module/image.png')\nurl(~aliasDirectory/image.png) => require('otherDirectory/image.png')\n```\n\n#### `Boolean`\n\nEnable/disable `url()` resolving.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n url: true,\n },\n },\n ],\n },\n};\n```\n\n#### `Function`\n\nAllow to filter `url()`. All filtered `url()` will not be resolved (left in the code as they were written).\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n url: (url, resourcePath) => {\n // resourcePath - path to css file\n\n // `url()` with `img.png` stay untouched\n return url.includes('img.png');\n },\n },\n },\n ],\n },\n};\n```\n\n### `import`\n\nType: `Boolean`\nDefault: `true`\n\nControl `@import` resolving. Absolute urls in `@import` will be moved in runtime code.\n\nExamples resolutions:\n\n```\n@import 'style.css' => require('./style.css')\n@import url(style.css) => require('./style.css')\n@import url('style.css') => require('./style.css')\n@import './style.css' => require('./style.css')\n@import url(./style.css) => require('./style.css')\n@import url('./style.css') => require('./style.css')\n@import url('http://dontwritehorriblecode.com/style.css') => @import url('http://dontwritehorriblecode.com/style.css') in runtime\n```\n\nTo import styles from a `node_modules` path (include `resolve.modules`) and for `alias`, prefix it with a `~`:\n\n```\n@import url(~module/style.css) => require('module/style.css')\n@import url('~module/style.css') => require('module/style.css')\n@import url(~aliasDirectory/style.css) => require('otherDirectory/style.css')\n```\n\n#### `Boolean`\n\nEnable/disable `@import` resolving.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n import: true,\n },\n },\n ],\n },\n};\n```\n\n#### `Function`\n\nAllow to filter `@import`. All filtered `@import` will not be resolved (left in the code as they were written).\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n import: (parsedImport, resourcePath) => {\n // parsedImport.url - url of `@import`\n // parsedImport.media - media query of `@import`\n // resourcePath - path to css file\n\n // `@import` with `style.css` stay untouched\n return parsedImport.url.includes('style.css');\n },\n },\n },\n ],\n },\n};\n```\n\n### [`modules`](https://github.com/css-modules/css-modules)\n\nType: `Boolean|String`\nDefault: `false`\n\nThe `modules` option enables/disables the **CSS Modules** spec and setup basic behaviour.\n\n| Name | Type | Description |\n| :------------: | :---------: | :------------------------------------------------------------------------------------------------------------------------------- |\n| **`true`** | `{Boolean}` | Enables local scoped CSS by default (use **local** mode by default) |\n| **`false`** | `{Boolean}` | Disable the **CSS Modules** spec, all **CSS Modules** features (like `@value`, `:local`, `:global` and `composes`) will not work |\n| **`'local'`** | `{String}` | Enables local scoped CSS by default (same as `true` value) |\n| **`'global'`** | `{String}` | Enables global scoped CSS by default |\n\nUsing `false` value increase performance because we avoid parsing **CSS Modules** features, it will be useful for developers who use vanilla css or use other technologies.\n\nYou can read about **modes** below.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n modules: true,\n },\n },\n ],\n },\n};\n```\n\n##### `Scope`\n\nUsing `local` value requires you to specify `:global` classes.\nUsing `global` value requires you to specify `:local` classes.\n\nYou can find more information [here](https://github.com/css-modules/css-modules).\n\nStyles can be locally scoped to avoid globally scoping styles.\n\nThe syntax `:local(.className)` can be used to declare `className` in the local scope. The local identifiers are exported by the module.\n\nWith `:local` (without brackets) local mode can be switched on for this selector.\nThe `:global(.className)` nocation can be used to declare an explicit global selector.\nWith `:global` (without brackets) global mode can be switched on for this selector.\n\nThe loader replaces local selectors with unique identifiers. The chosen unique identifiers are exported by the module.\n\n```css\n:local(.className) {\n background: red;\n}\n:local .className {\n color: green;\n}\n:local(.className .subClass) {\n color: green;\n}\n:local .className .subClass :global(.global-class-name) {\n color: blue;\n}\n```\n\n```css\n._23_aKvs-b8bW2Vg3fwHozO {\n background: red;\n}\n._23_aKvs-b8bW2Vg3fwHozO {\n color: green;\n}\n._23_aKvs-b8bW2Vg3fwHozO ._13LGdX8RMStbBE9w-t0gZ1 {\n color: green;\n}\n._23_aKvs-b8bW2Vg3fwHozO ._13LGdX8RMStbBE9w-t0gZ1 .global-class-name {\n color: blue;\n}\n```\n\n> ℹ️ Identifiers are exported\n\n```js\nexports.locals = {\n className: '_23_aKvs-b8bW2Vg3fwHozO',\n subClass: '_13LGdX8RMStbBE9w-t0gZ1',\n};\n```\n\nCamelCase is recommended for local selectors. They are easier to use within the imported JS module.\n\nYou can use `:local(#someId)`, but this is not recommended. Use classes instead of ids.\n\n##### `Composing`\n\nWhen declaring a local classname you can compose a local class from another local classname.\n\n```css\n:local(.className) {\n background: red;\n color: yellow;\n}\n\n:local(.subClass) {\n composes: className;\n background: blue;\n}\n```\n\nThis doesn't result in any change to the CSS itself but exports multiple classnames.\n\n```js\nexports.locals = {\n className: '_23_aKvs-b8bW2Vg3fwHozO',\n subClass: '_13LGdX8RMStbBE9w-t0gZ1 _23_aKvs-b8bW2Vg3fwHozO',\n};\n```\n\n```css\n._23_aKvs-b8bW2Vg3fwHozO {\n background: red;\n color: yellow;\n}\n\n._13LGdX8RMStbBE9w-t0gZ1 {\n background: blue;\n}\n```\n\n##### `Importing`\n\nTo import a local classname from another module.\n\n```css\n:local(.continueButton) {\n composes: button from 'library/button.css';\n background: red;\n}\n```\n\n```css\n:local(.nameEdit) {\n composes: edit highlight from './edit.css';\n background: red;\n}\n```\n\nTo import from multiple modules use multiple `composes:` rules.\n\n```css\n:local(.className) {\n composes: edit hightlight from './edit.css';\n composes: button from 'module/button.css';\n composes: classFromThisModule;\n background: red;\n}\n```\n\n### `localIdentName`\n\nType: `String`\nDefault: `[hash:base64]`\n\nYou can configure the generated ident with the `localIdentName` query parameter.\nSee [loader-utils's documentation](https://github.com/webpack/loader-utils#interpolatename) for more information on options.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n modules: true,\n localIdentName: '[path][name]__[local]--[hash:base64:5]',\n },\n },\n ],\n },\n};\n```\n\n### `context`\n\nType: `String`\nDefault: `undefined`\n\nAllow to redefine basic loader context for local ident name.\nBy default we use `rootContext` of loader.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n modules: true,\n context: path.resolve(__dirname, 'context'),\n },\n },\n ],\n },\n};\n```\n\n### `hashPrefix`\n\nType: `String`\nDefault: `undefined`\n\nAllow to add custom hash to generate more unique classes.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n modules: true,\n hashPrefix: 'hash',\n },\n },\n ],\n },\n};\n```\n\n### `getLocalIdent`\n\nType: `Function`\nDefault: `undefined`\n\nYou can also specify the absolute path to your custom `getLocalIdent` function to generate classname based on a different schema.\nBy default we use built-in function to generate a classname.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n modules: true,\n getLocalIdent: (context, localIdentName, localName, options) => {\n return 'whatever_random_class_name';\n },\n },\n },\n ],\n },\n};\n```\n\n### `sourceMap`\n\nType: `Boolean`\nDefault: `false`\n\nTo include source maps set the `sourceMap` option.\n\nI.e. the `mini-css-extract-plugin` can handle them.\n\nThey are not enabled by default because they expose a runtime overhead and increase in bundle size (JS source maps do not). In addition to that relative paths are buggy and you need to use an absolute public path which includes the server URL.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n sourceMap: true,\n },\n },\n ],\n },\n};\n```\n\n### `camelCase`\n\nType: `Boolean|String`\nDefault: `false`\n\nBy default, the exported JSON keys mirror the class names. If you want to camelize class names (useful in JS), pass the query parameter `camelCase` to css-loader.\n\n| Name | Type | Description |\n| :----------------: | :---------: | :----------------------------------------------------------------------------------------------------------------------- |\n| **`false`** | `{Boolean}` | Class names will be camelized, the original class name will not to be removed from the locals |\n| **`true`** | `{Boolean}` | Class names will be camelized |\n| **`'dashes'`** | `{String}` | Only dashes in class names will be camelized |\n| **`'only'`** | `{String}` | Introduced in `0.27.1`. Class names will be camelized, the original class name will be removed from the locals |\n| **`'dashesOnly'`** | `{String}` | Introduced in `0.27.1`. Dashes in class names will be camelized, the original class name will be removed from the locals |\n\n**file.css**\n\n```css\n.class-name {\n}\n```\n\n**file.js**\n\n```js\nimport { className } from 'file.css';\n```\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n camelCase: true,\n },\n },\n ],\n },\n};\n```\n\n### `importLoaders`\n\nType: `Number`\nDefault: `0`\n\nThe option `importLoaders` allows you to configure how many loaders before `css-loader` should be applied to `@import`ed resources.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: [\n 'style-loader',\n {\n loader: 'css-loader',\n options: {\n importLoaders: 2, // 0 => no loaders (default); 1 => postcss-loader; 2 => postcss-loader, sass-loader\n },\n },\n 'postcss-loader',\n 'sass-loader',\n ],\n },\n ],\n },\n};\n```\n\nThis may change in the future when the module system (i. e. webpack) supports loader matching by origin.\n\n### `exportOnlyLocals`\n\nType: `Boolean`\nDefault: `false`\n\nExport only locals (**useful** when you use **css modules**).\nFor pre-rendering with `mini-css-extract-plugin` you should use this option instead of `style-loader!css-loader` **in the pre-rendering bundle**.\nIt doesn't embed CSS but only exports the identifier mappings.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n loader: 'css-loader',\n options: {\n exportOnlyLocals: true,\n },\n },\n ],\n },\n};\n```\n\n## Examples\n\n### Assets\n\nThe following `webpack.config.js` can load CSS files, embed small PNG/JPG/GIF/SVG images as well as fonts as [Data URLs](https://tools.ietf.org/html/rfc2397) and copy larger files to the output directory.\n\n**webpack.config.js**\n\n```js\nmodule.exports = {\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: ['style-loader', 'css-loader'],\n },\n {\n test: /\\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/,\n loader: 'url-loader',\n options: {\n limit: 10000,\n },\n },\n ],\n },\n};\n```\n\n### Extract\n\nFor production builds it's recommended to extract the CSS from your bundle being able to use parallel loading of CSS/JS resources later on.\n\n- This can be achieved by using the [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) to extract the CSS when running in production mode.\n\n- As an alternative, if seeking better development performance and css outputs that mimic production. [extract-css-chunks-webpack-plugin](https://github.com/faceyspacey/extract-css-chunks-webpack-plugin) offers a hot module reload friendly, extended version of mini-css-extract-plugin. HMR real CSS files in dev, works like mini-css in non-dev\n\n## Contributing\n\nPlease take a moment to read our contributing guidelines if you haven't yet done so.\n\n[CONTRIBUTING](./.github/CONTRIBUTING.md)\n\n## License\n\n[MIT](./LICENSE)\n\n[npm]: https://img.shields.io/npm/v/css-loader.svg\n[npm-url]: https://npmjs.com/package/css-loader\n[node]: https://img.shields.io/node/v/css-loader.svg\n[node-url]: https://nodejs.org\n[deps]: https://david-dm.org/webpack-contrib/css-loader.svg\n[deps-url]: https://david-dm.org/webpack-contrib/css-loader\n[tests]: https://img.shields.io/circleci/project/github/webpack-contrib/css-loader.svg\n[tests-url]: https://circleci.com/gh/webpack-contrib/css-loader\n[cover]: https://codecov.io/gh/webpack-contrib/css-loader/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack-contrib/css-loader\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\n[size]: https://packagephobia.now.sh/badge?p=css-loader\n[size-url]: https://packagephobia.now.sh/result?p=css-loader\n# abbrev-js\n\nJust like [ruby's Abbrev](http://apidock.com/ruby/Abbrev).\n\nUsage:\n\n var abbrev = require(\"abbrev\");\n abbrev(\"foo\", \"fool\", \"folding\", \"flop\");\n \n // returns:\n { fl: 'flop'\n , flo: 'flop'\n , flop: 'flop'\n , fol: 'folding'\n , fold: 'folding'\n , foldi: 'folding'\n , foldin: 'folding'\n , folding: 'folding'\n , foo: 'foo'\n , fool: 'fool'\n }\n\nThis is handy for command-line scripts, or other cases where you want to be able to accept shorthands.\nGenerate a self signed x509 certificate from node.js.\n\n[](https://travis-ci.org/jfromaniello/selfsigned)\n\n## Install\n\n```bash\n npm install selfsigned\n```\n\n## Usage\n\n```js\nvar selfsigned = require('selfsigned');\nvar attrs = [{ name: 'commonName', value: 'contoso.com' }];\nvar pems = selfsigned.generate(attrs, { days: 365 });\nconsole.log(pems)\n```\n\n#### Async\n\n```js\nselfsigned.generate(attrs, { days: 365 }, function (err, pems) {\n console.log(pems)\n});\n```\n\nWill return the following like this:\n\n```js\n{\n private: '-----BEGIN RSA PRIVATE KEY-----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\\r\\n/mgqN589OfF4SS0U/MoRzYk9jF9IAJN1Mi/571T+nw4=\\r\\n-----END RSA PRIVATE KEY-----\\r\\n',\n public: '-----BEGIN PUBLIC KEY-----\\r\\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCBFMXMYS/+RZz6+qzv+xeqXPdj\\r\\nw4YKZC4y3dPhSwgEwkecrCTXsR6boue+1MjIqPqWggXZnotIGldfEN0kn0Jbh2vM\\r\\nTrTx6YwqQ8tceBPoyuuqcYBOOONAcKOB3MLnZbyOgVtbyT3j68JE5V/lx6LhpIKA\\r\\ngY0m5WIuaKrW6mvLXQIDAQAB\\r\\n-----END PUBLIC KEY-----\\r\\n',\n cert: '-----BEGIN CERTIFICATE-----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\\r\\nXJZAPO10PHuDen7JeMOUf1Re7lRFtwfRGAvVYmrvYFKv\\r\\n-----END CERTIFICATE-----\\r\\n'\n}\n```\n\n## Attributes\n\nfor attributes, please refer to: https://github.com/digitalbazaar/forge/blob/0.7.5/lib/x509.js#L129\n\n## Options\n\n```js\nvar pems = selfsigned.generate(null, {\n keySize: 2048, // the size for the private key in bits (default: 1024)\n days: 30, // how long till expiry of the signed certificate (default: 365)\n algorithm: 'sha256', // sign the certificate with specified algorithm (default: 'sha1')\n extensions: [{ name: 'basicConstraints', cA: true }], // certificate extensions array\n pkcs7: true, // include PKCS#7 as part of the output (default: false)\n clientCertificate: true, // generate client cert signed by the original key (default: false)\n clientCertificateCN: 'jdoe' // client certificate's common name (default: 'John Doe jdoe123')\n});\n```\n\n> You can avoid key pair generation specifying your own keys (`{ keyPair: { publicKey: '-----BEGIN PUBLIC KEY-----...', privateKey: '-----BEGIN RSA PRIVATE KEY-----...' }`)\n\n### Generate Client Certificates\n\nIf you are in an environment where servers require client certificates, you can generate client keys signed by the original (server) key.\n\n```js\nvar pems = selfsigned.generate(null, { clientCertificate: true });\nconsole.log(pems)\n```\nWill return the following like this:\n\n```js\n{ private: '-----BEGIN RSA PRIVATE KEY-----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\\r\\nfVUSx1nCF1sPD0p+pO8Rj3i87iI4MlblQRm/wVkrkjiR\\r\\n-----END RSA PRIVATE KEY-----\\r\\n',\n public: '-----BEGIN PUBLIC KEY-----\\r\\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLg/kS4dCPVu96sbK6MQuUPmhq\\r\\nnF8SeBXVHH18h+0BTj7HqnrAA75hNVIiSLTChvpzQ0qi2Ju7O2ESUOdx7cvGiftG\\r\\nuZLiI8uL2HVlYuX+wQTIoRHx9nxv56TIiqnPg5d05vSTLXoiJg5uac3a6+4vnhhT\\r\\no0XRRXVVboZsfNpuGQIDAQAB\\r\\n-----END PUBLIC KEY-----\\r\\n',\n cert: '-----BEGIN CERTIFICATE-----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\\r\\nAE/FO85R0HbGEp+IrwUwDOLR6omBFVdh1EUOTcQU2jLZNbWvLDiWbDo=\\r\\n-----END CERTIFICATE-----\\r\\n',\n clientprivate: '-----BEGIN RSA PRIVATE KEY-----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\\r\\ncwIs+ikIBnOwUOh6liJ7yK1YnckDTZTOfUDyG+vdFQ==\\r\\n-----END RSA PRIVATE KEY-----\\r\\n',\n clientpublic: '-----BEGIN PUBLIC KEY-----\\r\\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDjR5FrrdZ1jirqkx3KMPnGjrcO\\r\\nbj/vmztWTEZ1kX6gTskQugJUoxktzwDZza4jYODC6Ud2jouFLWeAi5BDSAeLwAQb\\r\\n951qVD9zVsmQ+63V/mvSJUojigwj7YjcxyReJ17F0YgjceqrkZaPM8YRo8h1fj1J\\r\\ndPc4ZOUgA5ASZ0h2ewIDAQAB\\r\\n-----END PUBLIC KEY-----\\r\\n',\n clientcert: '-----BEGIN CERTIFICATE-----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\\r\\nnizRS0HY4Q25JLCmsWWy\\r\\n-----END CERTIFICATE-----\\r\\n' }\n```\n\nTo override the default client CN of `john doe jdoe123`, add another option for `clientCertificateCN`:\n\n```js\nvar pems = selfsigned.generate(null, { clientCertificate: true, clientCertificateCN: 'FooBar' });\n```\n\n## License\n\nMIT\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n <br>\n <br>\n\n[![npm][npm]][npm-url]\n\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![builds][builds]][builds-url]\n[![builds2][builds2]][builds2-url]\n[![coverage][cover]][cover-url]\n[![licenses][licenses]][licenses-url]\n\n <br>\n <a href=\"https://dependabot.com/compatibility-score.html?dependency-name=webpack&package-manager=npm_and_yarn&new-version=latest\">\n <img src=\"https://api.dependabot.com/badges/compatibility_score?dependency-name=webpack&package-manager=npm_and_yarn&version-scheme=semver&target-version=latest\">\n </a>\n\t<a href=\"https://npmcharts.com/compare/webpack?minimal=true\">\n\t\t<img src=\"https://img.shields.io/npm/dm/webpack.svg\">\n\t</a>\n\t<a href=\"https://packagephobia.now.sh/result?p=webpack\">\n\t\t<img src=\"https://packagephobia.now.sh/badge?p=webpack\" alt=\"install size\">\n\t</a>\n\t<a href=\"https://opencollective.com/webpack#backer\">\n\t\t<img src=\"https://opencollective.com/webpack/backers/badge.svg\">\n\t</a>\n\t<a href=\"https://opencollective.com/webpack#sponsors\">\n\t\t<img src=\"https://opencollective.com/webpack/sponsors/badge.svg\">\n\t</a>\n\t<a href=\"https://github.com/webpack/webpack/graphs/contributors\">\n\t\t<img src=\"https://img.shields.io/github/contributors/webpack/webpack.svg\">\n\t</a>\n\t<a href=\"https://gitter.im/webpack/webpack\">\n\t\t<img src=\"https://badges.gitter.im/webpack/webpack.svg\">\n\t</a>\n <h1>webpack</h1>\n <p>\n webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.\n </p>\n</div>\n\n## Table of Contents\n\n1. [Install](#install)\n2. [Introduction](#introduction)\n3. [Concepts](#concepts)\n4. [Contributing](#contributing)\n5. [Support](#support)\n6. [Core Team](#core-team)\n7. [Sponsoring](#sponsoring)\n8. [Premium Partners](#premium-partners)\n9. [Other Backers and Sponsors](#other-backers-and-sponsors)\n10. [Gold Sponsors](#gold-sponsors)\n11. [Silver Sponsors](#silver-sponsors)\n12. [Bronze Sponsors](#bronze-sponsors)\n13. [Backers](#backers)\n14. [Special Thanks](#special-thanks-to)\n\n<h2 align=\"center\">Install</h2>\n\nInstall with npm:\n\n```bash\nnpm install --save-dev webpack\n```\n\nInstall with yarn:\n\n```bash\nyarn add webpack --dev\n```\n\n<h2 align=\"center\">Introduction</h2>\n\nwebpack is a bundler for modules. The main purpose is to bundle JavaScript\nfiles for usage in a browser, yet it is also capable of transforming, bundling,\nor packaging just about any resource or asset.\n\n**TL;DR**\n\n* Bundles [ES Modules](http://www.2ality.com/2014/09/es6-modules-final.html), [CommonJS](http://wiki.commonjs.org/), and [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD) modules (even combined).\n* Can create a single bundle or multiple chunks that are asynchronously loaded at runtime (to reduce initial loading time).\n* Dependencies are resolved during compilation, reducing the runtime size.\n* Loaders can preprocess files while compiling, e.g. TypeScript to JavaScript, Handlebars strings to compiled functions, images to Base64, etc.\n* Highly modular plugin system to do whatever else your application requires.\n\n### Get Started\n\nCheck out webpack's quick [**Get Started**](https://webpack.js.org/get-started/) guide and the [other guides](https://webpack.js.org/guides/).\n\n### Browser Compatibility\n\nwebpack supports all browsers that are [ES5-compliant](http://kangax.github.io/compat-table/es5/) (IE8 and below are not supported).\nwebpack also needs `Promise` for `import()` and `require.ensure()`. If you want to support older browsers, you will need to [load a polyfill](https://webpack.js.org/guides/shimming/) before using these expressions.\n\n<h2 align=\"center\">Concepts</h2>\n\n### [Plugins](https://webpack.js.org/plugins/)\n\nwebpack has a [rich plugin\ninterface](https://webpack.js.org/plugins/). Most of the features\nwithin webpack itself use this plugin interface. This makes webpack very\n**flexible**.\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|[mini-css-extract-plugin][mini-css]|![mini-css-npm]|![mini-css-size]|Extracts CSS into separate files. It creates a CSS file per JS file which contains CSS.|\n|[compression-webpack-plugin][compression]|![compression-npm]|![compression-size]|Prepares compressed versions of assets to serve them with Content-Encoding|\n|[i18n-webpack-plugin][i18n]|![i18n-npm]|![i18n-size]|Adds i18n support to your bundles|\n|[html-webpack-plugin][html-plugin]|![html-plugin-npm]|![html-plugin-size]| Simplifies creation of HTML files (`index.html`) to serve your bundles|\n|[extract-text-webpack-plugin][extract]|![extract-npm]|![extract-size]|Extract text from a bundle, or bundles, into a separate file|\n\n[common-npm]: https://img.shields.io/npm/v/webpack.svg\n[extract]: https://github.com/webpack/extract-text-webpack-plugin\n[extract-npm]: https://img.shields.io/npm/v/extract-text-webpack-plugin.svg\n[extract-size]: https://packagephobia.now.sh/badge?p=extract-text-webpack-plugin\n[mini-css]: https://github.com/webpack-contrib/mini-css-extract-plugin\n[mini-css-npm]: https://img.shields.io/npm/v/mini-css-extract-plugin.svg\n[mini-css-size]: https://packagephobia.now.sh/badge?p=mini-css-extract-plugin\n[component]: https://github.com/webpack/component-webpack-plugin\n[component-npm]: https://img.shields.io/npm/v/component-webpack-plugin.svg\n[component-size]: https://packagephobia.now.sh/badge?p=component-webpack-plugin\n[compression]: https://github.com/webpack/compression-webpack-plugin\n[compression-npm]: https://img.shields.io/npm/v/compression-webpack-plugin.svg\n[compression-size]: https://packagephobia.now.sh/badge?p=compression-webpack-plugin\n[i18n]: https://github.com/webpack/i18n-webpack-plugin\n[i18n-npm]: https://img.shields.io/npm/v/i18n-webpack-plugin.svg\n[i18n-size]: https://packagephobia.now.sh/badge?p=i18n-webpack-plugin\n[html-plugin]: https://github.com/ampedandwired/html-webpack-plugin\n[html-plugin-npm]: https://img.shields.io/npm/v/html-webpack-plugin.svg\n[html-plugin-size]: https://packagephobia.now.sh/badge?p=html-webpack-plugin\n\n### [Loaders](https://webpack.js.org/loaders/)\n\nwebpack enables use of loaders to preprocess files. This allows you to bundle\n**any static resource** way beyond JavaScript. You can easily [write your own\nloaders](https://webpack.js.org/api/loaders/) using Node.js.\n\nLoaders are activated by using `loadername!` prefixes in `require()` statements,\nor are automatically applied via regex from your webpack configuration.\n\n#### Files\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|[raw-loader][raw]|![raw-npm]|![raw-size]|Loads raw content of a file (utf-8)|\n|[val-loader][val]|![val-npm]|![val-size]|Executes code as module and considers exports as JS code|\n|[url-loader][url]|![url-npm]|![url-size]|Works like the file loader, but can return a Data Url if the file is smaller than a limit|\n|[file-loader][file]|![file-npm]|![file-size]|Emits the file into the output folder and returns the (relative) url|\n\n[raw]: https://github.com/webpack/raw-loader\n[raw-npm]: https://img.shields.io/npm/v/raw-loader.svg\n[raw-size]: https://packagephobia.now.sh/badge?p=raw-loader\n[val]: https://github.com/webpack/val-loader\n[val-npm]: https://img.shields.io/npm/v/val-loader.svg\n[val-size]: https://packagephobia.now.sh/badge?p=val-loader\n[url]: https://github.com/webpack/url-loader\n[url-npm]: https://img.shields.io/npm/v/url-loader.svg\n[url-size]: https://packagephobia.now.sh/badge?p=url-loader\n[file]: https://github.com/webpack/file-loader\n[file-npm]: https://img.shields.io/npm/v/file-loader.svg\n[file-size]: https://packagephobia.now.sh/badge?p=file-loader\n\n#### JSON\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/webpack/json-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/json.svg\"></a>|![json-npm]|![json-size]|Loads a JSON file (included by default)|\n|<a href=\"https://github.com/webpack/json5-loader\"><img width=\"48\" height=\"10.656\" src=\"https://cdn.rawgit.com/json5/json5-logo/master/json5-logo.svg\"></a>|![json5-npm]|![json5-size]|Loads and transpiles a JSON 5 file|\n|<a href=\"https://github.com/awnist/cson-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/coffeescript.svg\"></a>|![cson-npm]|![cson-size]|Loads and transpiles a CSON file|\n\n[json-npm]: https://img.shields.io/npm/v/json-loader.svg\n[json-size]: https://packagephobia.now.sh/badge?p=json-loader\n[json5-npm]: https://img.shields.io/npm/v/json5-loader.svg\n[json5-size]: https://packagephobia.now.sh/badge?p=json5-loader\n[cson-npm]: https://img.shields.io/npm/v/cson-loader.svg\n[cson-size]: https://packagephobia.now.sh/badge?p=cson-loader\n\n#### Transpiling\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/webpack/script-loader\">`<script>`</a>|![script-npm]|![script-size]|Executes a JavaScript file once in global context (like in script tag), `require()`s are not parsed|\n|<a href=\"https://github.com/babel/babel-loader\"><img width=\"48\" height=\"48\" title=\"babel-loader\" src=\"https://worldvectorlogo.com/logos/babel-10.svg\"></a>|![babel-npm]|![babel-size]|Loads ES2015+ code and transpiles to ES5 using <a href=\"https://github.com/babel/babel\">Babel</a>|\n|<a href=\"https://github.com/jupl/traceur-loader\"><img width=\"48\" height=\"48\" src=\"https://google.github.com/traceur-compiler/logo/tc.svg\"></a>|![traceur-npm]|![traceur-size]|Loads ES2015+ code and transpiles to ES5 using [Traceur](https://github.com/google/traceur-compiler)|\n|<a href=\"https://github.com/TypeStrong/ts-loader\"><img width=\"48\" height=\"48\" src=\"https://cdn.rawgit.com/Microsoft/TypeScript/master/doc/logo.svg\"></a>|![type-npm]|![type-size]|Loads TypeScript like JavaScript|\n|[`awesome-typescript-loader`](https://github.com/s-panferov/awesome-typescript-loader)|![awesome-typescript-npm]|![awesome-typescript-size]|Awesome TypeScript loader for webpack|\n|<a href=\"https://github.com/webpack/coffee-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/coffeescript.svg\"></a>|![coffee-npm]|![coffee-size]|Loads CoffeeScript like JavaScript|\n\n[script-npm]: https://img.shields.io/npm/v/script-loader.svg\n[script-size]: https://packagephobia.now.sh/badge?p=script-loader\n[babel-npm]: https://img.shields.io/npm/v/babel-loader.svg\n[babel-size]: https://packagephobia.now.sh/badge?p=babel-loader\n[traceur-npm]: https://img.shields.io/npm/v/traceur-loader.svg\n[traceur-size]: https://packagephobia.now.sh/badge?p=traceur-loader\n[coffee-npm]: https://img.shields.io/npm/v/coffee-loader.svg\n[coffee-size]: https://packagephobia.now.sh/badge?p=coffee-loader\n[type-npm]: https://img.shields.io/npm/v/ts-loader.svg\n[type-size]: https://packagephobia.now.sh/badge?p=ts-loader\n[awesome-typescript-npm]: https://img.shields.io/npm/v/awesome-typescript-loader.svg\n[awesome-typescript-size]: https://packagephobia.now.sh/badge?p=awesome-typescript-loader\n\n#### Templating\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/webpack/html-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/html5.svg\"></a>|![html-npm]|![html-size]|Exports HTML as string, requires references to static resources|\n|<a href=\"https://github.com/pugjs/pug-loader\"><img width=\"48\" height=\"48\" src=\"https://cdn.rawgit.com/pugjs/pug-logo/master/SVG/pug-final-logo-_-colour-128.svg\"></a>|![pug-npm]|![pug-size]|Loads Pug templates and returns a function|\n|<a href=\"https://github.com/webpack/jade-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/jade-3.svg\"></a>|![jade-npm]|![jade-size]|Loads Jade templates and returns a function|\n|<a href=\"https://github.com/peerigon/markdown-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/markdown.svg\"></a>|![md-npm]|![md-size]|Compiles Markdown to HTML|\n|<a href=\"https://github.com/posthtml/posthtml-loader\"><img width=\"48\" height=\"48\" src=\"http://posthtml.github.io/posthtml/logo.svg\"></a>|![posthtml-npm]|![posthtml-size]|Loads and transforms a HTML file using [PostHTML](https://github.com/posthtml/posthtml)|\n|<a href=\"https://github.com/altano/handlebars-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/handlebars-1.svg\"></a>|![hbs-npm]|![hbs-size]| Compiles Handlebars to HTML|\n\n[html-npm]: https://img.shields.io/npm/v/html-loader.svg\n[html-size]: https://packagephobia.now.sh/badge?p=html-loader\n[pug-npm]: https://img.shields.io/npm/v/pug-loader.svg\n[pug-size]: https://packagephobia.now.sh/badge?p=pug-loader\n[jade-npm]: https://img.shields.io/npm/v/jade-loader.svg\n[jade-size]: https://packagephobia.now.sh/badge?p=jade-loader\n[md-npm]: https://img.shields.io/npm/v/markdown-loader.svg\n[md-size]: https://packagephobia.now.sh/badge?p=markdown-loader\n[posthtml-npm]: https://img.shields.io/npm/v/posthtml-loader.svg\n[posthtml-size]: https://packagephobia.now.sh/badge?p=posthtml-loader\n[hbs-npm]: https://img.shields.io/npm/v/handlebars-loader.svg\n[hbs-size]: https://packagephobia.now.sh/badge?p=handlebars-loader\n\n#### Styling\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/webpack/style-loader\">`<style>`</a>|![style-npm]|![style-size]|Add exports of a module as style to DOM|\n|<a href=\"https://github.com/webpack/css-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/css-3.svg\"></a>|![css-npm]|![css-size]|Loads CSS file with resolved imports and returns CSS code|\n|<a href=\"https://github.com/webpack/less-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/less-63.svg\"></a>|![less-npm]|![less-size]|Loads and compiles a LESS file|\n|<a href=\"https://github.com/jtangelder/sass-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/sass-1.svg\"></a>|![sass-npm]|![sass-size]|Loads and compiles a Sass/SCSS file|\n|<a href=\"https://github.com/shama/stylus-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/stylus.svg\"></a>|![stylus-npm]|![stylus-size]|Loads and compiles a Stylus file|\n|<a href=\"https://github.com/postcss/postcss-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/postcss.svg\"></a>|![postcss-npm]|![postcss-size]|Loads and transforms a CSS/SSS file using [PostCSS](http://postcss.org)|\n\n[style-npm]: https://img.shields.io/npm/v/style-loader.svg\n[style-size]: https://packagephobia.now.sh/badge?p=style-loader\n[css-npm]: https://img.shields.io/npm/v/css-loader.svg\n[css-size]: https://packagephobia.now.sh/badge?p=css-loader\n[less-npm]: https://img.shields.io/npm/v/less-loader.svg\n[less-size]: https://packagephobia.now.sh/badge?p=less-loader\n[sass-npm]: https://img.shields.io/npm/v/sass-loader.svg\n[sass-size]: https://packagephobia.now.sh/badge?p=sass-loader\n[stylus-npm]: https://img.shields.io/npm/v/stylus-loader.svg\n[stylus-size]: https://packagephobia.now.sh/badge?p=stylus-loader\n[postcss-npm]: https://img.shields.io/npm/v/postcss-loader.svg\n[postcss-size]: https://packagephobia.now.sh/badge?p=postcss-loader\n\n#### Linting & Testing\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/webpack/mocha-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/mocha.svg\"></a>|![mocha-npm]|![mocha-size]|Tests with mocha (Browser/NodeJS)|\n|<a href=\"https://github.com/MoOx/eslint-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/eslint.svg\"></a>|![eslint-npm]|![eslint-size]|PreLoader for linting code using ESLint|\n|<a href=\"https://github.com/webpack-contrib/jshint-loader\"><img width=\"48\" height=\"20.64\" src=\"http://jshint.com/res/jshint-dark.png\"></a>|![jshint-npm]|![jshint-size]|PreLoader for linting code using JSHint|\n\n[mocha-npm]: https://img.shields.io/npm/v/mocha-loader.svg\n[mocha-size]: https://packagephobia.now.sh/badge?p=mocha-loader\n[eslint-npm]: https://img.shields.io/npm/v/eslint-loader.svg\n[eslint-size]: https://packagephobia.now.sh/badge?p=eslint-loader\n[jshint-npm]: https://img.shields.io/npm/v/jshint-loader.svg\n[jshint-size]: https://packagephobia.now.sh/badge?p=jshint-loader\n[jscs-npm]: https://img.shields.io/npm/v/jscs-loader.svg\n[jscs-size]: https://packagephobia.now.sh/badge?p=jscs-loader\n\n#### Frameworks\n\n|Name|Status|Install Size|Description|\n|:--:|:----:|:----------:|:----------|\n|<a href=\"https://github.com/vuejs/vue-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/vue-9.svg\"></a>|![vue-npm]|![vue-size]|Loads and compiles Vue Components|\n|<a href=\"https://github.com/webpack-contrib/polymer-webpack-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/polymer.svg\"></a>|![polymer-npm]|![polymer-size]|Process HTML & CSS with preprocessor of choice and `require()` Web Components like first-class modules|\n|<a href=\"https://github.com/TheLarkInn/angular2-template-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/angular-icon-1.svg\"></a>|![angular-npm]|![angular-size]| Loads and compiles Angular 2 Components|\n|<a href=\"https://github.com/riot/tag-loader\"><img width=\"48\" height=\"48\" src=\"https://worldvectorlogo.com/logos/riot.svg\"></a>|![riot-npm]|![riot-size]| Riot official webpack loader|\n\n[vue-npm]: https://img.shields.io/npm/v/vue-loader.svg\n[vue-size]: https://packagephobia.now.sh/badge?p=vue-loader\n[polymer-npm]: https://img.shields.io/npm/v/polymer-webpack-loader.svg\n[polymer-size]: https://packagephobia.now.sh/badge?p=polymer-webpack-loader\n[angular-npm]: https://img.shields.io/npm/v/angular2-template-loader.svg\n[angular-size]: https://packagephobia.now.sh/badge?p=angular2-template-loader\n[riot-npm]: https://img.shields.io/npm/v/riot-tag-loader.svg\n[riot-size]: https://packagephobia.now.sh/badge?p=riot-tag-loader\n\n### Performance\n\nwebpack uses async I/O and has multiple caching levels. This makes webpack fast\nand incredibly **fast** on incremental compilations.\n\n### Module Formats\n\nwebpack supports ES2015+, CommonJS and AMD modules **out of the box**. It performs clever static\nanalysis on the AST of your code. It even has an evaluation engine to evaluate\nsimple expressions. This allows you to **support most existing libraries** out of the box.\n\n### [Code Splitting](https://webpack.js.org/guides/code-splitting/)\n\nwebpack allows you to split your codebase into multiple chunks. Chunks are\nloaded asynchronously at runtime. This reduces the initial loading time.\n\n### [Optimizations](https://webpack.js.org/guides/production-build/)\n\nwebpack can do many optimizations to **reduce the output size of your\nJavaScript** by deduplicating frequently used modules, minifying, and giving\nyou full control of what is loaded initially and what is loaded at runtime\nthrough code splitting. It can also make your code chunks **cache\nfriendly** by using hashes.\n\n<h2 align=\"center\">Contributing</h2>\n\n**We want contributing to webpack to be fun, enjoyable, and educational for anyone, and everyone.** We have a [vibrant ecosystem](https://medium.com/webpack/contributors-guide/home) that spans beyond this single repo. We welcome you to check out any of the repositories in [our organization](http://github.com/webpack) or [webpack-contrib organization](http://github.com/webpack-contrib) which houses all of our loaders and plugins.\n\nContributions go far beyond pull requests and commits. Although we love giving you the opportunity to put your stamp on webpack, we also are thrilled to receive a variety of other contributions including:\n\n* [Documentation](https://github.com/webpack/webpack.js.org) updates, enhancements, designs, or bugfixes\n* Spelling or grammar fixes\n* README.md corrections or redesigns\n* Adding unit, or functional tests\n* Triaging GitHub issues -- especially determining whether an issue still persists or is reproducible.\n* [Searching #webpack on twitter](https://twitter.com/search?q=webpack) and helping someone else who needs help\n* Teaching others how to contribute to one of the many webpack's repos!\n* [Blogging, speaking about, or creating tutorials](https://github.com/webpack-contrib/awesome-webpack) about one of webpack's many features.\n* Helping others in our webpack [gitter channel](https://gitter.im/webpack/webpack).\n\nIf you are worried or don't know where to start, you can **always** reach out to [Sean Larkin (@TheLarkInn) on Twitter](https://twitter.com/thelarkinn) or simply submit an issue and a maintainer can help give you guidance!\n\nWe have also started a series on our [Medium Publication](https://medium.com/webpack) called [The Contributor's Guide to webpack](https://medium.com/webpack/contributors-guide/home). We welcome you to read it and post any questions or responses if you still need help.\n\n_Looking to speak about webpack?_ We'd **love** to review your talk abstract/CFP! You can email it to webpack [at] opencollective [dot] com and we can give pointers or tips!!!\n\n<h3 align=\"center\">Creating your own plugins and loaders</h3>\n\nIf you create a loader or plugin, we would <3 for you to open source it, and put it on npm. We follow the `x-loader`, `x-webpack-plugin` naming convention.\n\n<h2 align=\"center\">Support</h2>\n\nWe consider webpack to be a low-level tool used not only individually but also layered beneath other awesome tools. Because of its flexibility, webpack isn't always the _easiest_ entry-level solution, however we do believe it is the most powerful. That said, we're always looking for ways improve and simplify the tool without compromising functionality. If you have any ideas on ways to accomplish this, we're all ears!\n\nIf you're just getting started, take a look at [our new docs and concepts page](https://webpack.js.org/concepts/). This has a high level overview that is great for beginners!!\n\nLooking for webpack 1 docs? Please check out the old [wiki](https://github.com/webpack/docs/wiki/contents), but note that this deprecated version is no longer supported.\n\nIf you want to discuss something or just need help, [here is our Gitter room](https://gitter.im/webpack/webpack) where there are always individuals looking to help out!\n\nIf you are still having difficulty, we would love for you to post\na question to [StackOverflow with the webpack tag](https://stackoverflow.com/tags/webpack). It is much easier to answer questions that include your webpack.config.js and relevant files! So if you can provide them, we'd be extremely grateful (and more likely to help you find the answer!)\n\nIf you are twitter savvy you can tweet #webpack with your question and someone should be able to reach out and help also.\n\nIf you have discovered a 🐜 or have a feature suggestion, feel free to create an issue on Github.\n\n### License\n\n[](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fwebpack%2Fwebpack?ref=badge_large)\n\n<h2 align=\"center\">Core Team</h2>\n\n<table>\n <tbody>\n <tr>\n <td align=\"center\" valign=\"top\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/sokra.png?s=150\">\n <br>\n <a href=\"https://github.com/sokra\">Tobias Koppers</a>\n <p>Core</p>\n <br>\n <p>Founder of webpack</p>\n </td>\n <td align=\"center\" valign=\"top\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/jhnns.png?s=150\">\n <br>\n <a href=\"https://github.com/jhnns\">Johannes Ewald</a>\n <p>Loaders & Plugins</p>\n <br>\n <p>Early adopter of webpack</p>\n </td>\n <td align=\"center\" width=\"20%\" valign=\"top\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/TheLarkInn.png?s=150\">\n <br>\n <a href=\"https://github.com/TheLarkInn\">Sean T. Larkin</a>\n <p>Public Relations</p>\n <br>\n <p>Founder of the core team</p>\n </td>\n <td align=\"center\" valign=\"top\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/spacek33z.png?s=150\">\n <br>\n <a href=\"https://github.com/spacek33z\">Kees Kluskens</a>\n <p>Development</p>\n <br>\n <p>Sponsor</p>\n <a href=\"https://codeyellow.nl/\">\n <img height=\"15px\" src=\"https://cloud.githubusercontent.com/assets/1365881/20286583/ad62eb04-aac7-11e6-9c14-a0fef35b9b56.png\">\n </a>\n\t\t<br>\n </td>\n </tr>\n </tbody>\n</table>\n\n<h2 align=\"center\">Sponsoring</h2>\n\nMost of the core team members, webpack contributors and contributors in the ecosystem do this open source work in their free time. If you use webpack for a serious task, and you'd like us to invest more time on it, please donate. This project increases your income/productivity too. It makes development and applications faster and it reduces the required bandwidth.\n\nThis is how we use the donations:\n\n* Allow the core team to work on webpack\n* Thank contributors if they invested a large amount of time in contributing\n* Support projects in the ecosystem that are of great value for users\n* Support projects that are voted most (work in progress)\n* Infrastructure cost\n* Fees for money handling\n\n<h2 align=\"center\">Premium Partners</h2>\n\n<div align=\"center\">\n\n<a href=\"https://www.ag-grid.com/?utm_source=webpack&utm_medium=banner&utm_campaign=sponsorship\" target=\"_blank\"><img align=\"center\" src=\"https://raw.githubusercontent.com/webpack/media/2b399d58/horiz-banner-ad-ag-grid.png\">\n</a>\n\n</div>\n\n<h2 align=\"center\">Other Backers and Sponsors</h2>\n\nBefore we started using OpenCollective, donations were made anonymously. Now that we have made the switch, we would like to acknowledge these sponsors (and the ones who continue to donate using OpenCollective). If we've missed someone, please send us a PR, and we'll add you to this list.\n\n<div align=\"center\">\n\n[Google Angular Team](https://angular.io/), [Architects.io](http://architects.io/),\n<a href=\"https://moonmail.io\" target=\"_blank\" title=\"Email Marketing Software\"><img\nsrc=\"https://static.moonmail.io/moonmail-logo.svg\" height=\"30\" alt=\"MoonMail\"></a>\n<a href=\"https://monei.net\" target=\"_blank\" title=\"Best payment gateway rates\"><img\nsrc=\"https://static.monei.net/monei-logo.svg\" height=\"30\" alt=\"MONEI\"></a>\n\n</div>\n\n<h2 align=\"center\">Gold Sponsors</h2>\n\n[Become a gold sponsor](https://opencollective.com/webpack#sponsor) and get your logo on our README on Github with a link to your site.\n\n<div align=\"center\">\n\n<a href=\"https://opencollective.com/webpack/goldsponsor/0/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/0/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/1/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/1/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/2/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/2/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/3/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/3/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/4/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/4/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/5/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/5/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/6/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/6/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/7/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/7/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/8/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/8/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/9/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/9/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/10/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/10/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/11/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/11/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/12/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/12/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/13/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/13/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/14/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/14/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/15/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/15/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/16/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/16/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/17/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/17/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/18/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/18/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/19/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/19/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/20/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/20/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/21/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/21/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/22/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/22/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/23/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/23/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/24/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/24/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/25/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/25/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/26/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/26/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/27/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/27/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/28/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/28/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/goldsponsor/29/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/goldsponsor/29/avatar.svg?requireActive=false\"></a>\n\n</div>\n\n<h2 align=\"center\">Silver Sponsors</h2>\n\n[Become a silver sponsor](https://opencollective.com/webpack#sponsor) and get your logo on our README on Github with a link to your site.\n\n<div align=\"center\">\n\n<a href=\"https://opencollective.com/webpack/silversponsor/0/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/0/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/1/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/1/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/2/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/2/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/3/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/3/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/4/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/4/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/5/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/5/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/6/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/6/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/7/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/7/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/8/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/8/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/9/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/9/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/10/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/10/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/11/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/11/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/12/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/12/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/13/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/13/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/14/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/14/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/15/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/15/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/16/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/16/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/17/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/17/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/18/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/18/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/19/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/19/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/20/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/20/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/21/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/21/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/22/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/22/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/23/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/23/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/24/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/24/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/25/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/25/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/26/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/26/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/27/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/27/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/28/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/28/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/silversponsor/29/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/silversponsor/29/avatar.svg?requireActive=false\"></a>\n\n</div>\n\n<h2 align=\"center\">Bronze Sponsors</h2>\n\n[Become a bronze sponsor](https://opencollective.com/webpack#sponsor) and get your logo on our README on Github with a link to your site.\n\n<div align=\"center\">\n\n<a href=\"https://opencollective.com/webpack/sponsor/0/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/0/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/1/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/1/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/2/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/2/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/3/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/3/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/4/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/4/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/5/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/5/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/6/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/6/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/7/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/7/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/8/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/8/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/9/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/9/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/10/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/10/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/11/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/11/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/12/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/12/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/13/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/13/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/14/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/14/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/15/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/15/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/16/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/16/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/17/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/17/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/18/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/18/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/19/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/19/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/20/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/20/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/21/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/21/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/22/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/22/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/23/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/23/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/24/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/24/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/25/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/25/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/26/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/26/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/27/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/27/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/28/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/28/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/29/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/29/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/30/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/30/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/31/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/31/avatar.svg?requireActive=false\"></a>\n<a 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href=\"https://opencollective.com/webpack/sponsor/72/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/72/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/73/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/73/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/74/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/74/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/75/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/75/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/76/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/76/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/77/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/77/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/78/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/78/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/79/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/79/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/80/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/80/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/81/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/81/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/82/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/82/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/83/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/83/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/84/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/84/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/85/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/85/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/86/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/86/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/87/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/87/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/88/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/88/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/89/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/89/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/90/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/90/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/91/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/91/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/92/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/92/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/93/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/93/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/94/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/94/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/95/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/95/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/96/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/96/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/97/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/97/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/98/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/98/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/99/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/99/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/sponsor/100/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/sponsor/100/avatar.svg?requireActive=false\"></a>\n\n</div>\n\n<h2 align=\"center\">Backers</h2>\n\n[Become a backer](https://opencollective.com/webpack#backer) and get your image on our README on Github with a link to your site.\n\n<a href=\"https://opencollective.com/webpack/backer/0/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/0/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/1/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/1/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/2/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/2/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/3/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/3/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/4/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/4/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/5/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/5/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/6/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/6/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/7/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/7/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/8/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/8/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/9/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/9/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/10/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/10/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/11/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/11/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/12/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/12/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/13/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/13/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/14/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/14/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/15/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/15/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/16/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/16/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/17/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/17/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/18/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/18/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/19/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/19/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/20/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/20/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/21/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/21/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/22/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/22/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/23/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/23/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/24/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/24/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/25/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/25/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/26/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/26/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/27/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/27/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/28/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/28/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/29/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/29/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/30/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/30/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/31/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/31/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/32/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/32/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/33/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/33/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/34/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/34/avatar.svg?requireActive=false\"></a>\n<a 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href=\"https://opencollective.com/webpack/backer/90/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/90/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/91/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/91/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/92/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/92/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/93/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/93/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/94/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/94/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/95/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/95/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/96/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/96/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/97/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/97/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/98/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/98/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/99/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/99/avatar.svg?requireActive=false\"></a>\n<a href=\"https://opencollective.com/webpack/backer/100/website?requireActive=false\" target=\"_blank\"><img src=\"https://opencollective.com/webpack/backer/100/avatar.svg?requireActive=false\"></a>\n\n<h2 align=\"center\">Special Thanks to</h2>\n<p align=\"center\">(In chronological order)</p>\n\n* @google for [Google Web Toolkit (GWT)](http://www.gwtproject.org/), which aims to compile Java to JavaScript. It features a similar [Code Splitting](http://www.gwtproject.org/doc/latest/DevGuideCodeSplitting.html) as webpack.\n* @medikoo for [modules-webmake](https://github.com/medikoo/modules-webmake), which is a similar project. webpack was born because I wanted Code Splitting for modules-webmake. Interestingly the [Code Splitting issue is still open](https://github.com/medikoo/modules-webmake/issues/7) (thanks also to @Phoscur for the discussion).\n* @substack for [browserify](http://browserify.org/), which is a similar project and source for many ideas.\n* @jrburke for [require.js](http://requirejs.org/), which is a similar project and source for many ideas.\n* @defunctzombie for the [browser-field spec](https://gist.github.com/defunctzombie/4339901), which makes modules available for node.js, browserify and webpack.\n* Every early webpack user, which contributed to webpack by writing issues or PRs. You influenced the direction...\n* @shama, @jhnns and @sokra for maintaining this project\n* Everyone who has written a loader for webpack. You are the ecosystem...\n* Everyone I forgot to mention here, but also influenced webpack.\n\n[npm]: https://img.shields.io/npm/v/webpack.svg\n[npm-url]: https://npmjs.com/package/webpack\n\n[node]: https://img.shields.io/node/v/webpack.svg\n[node-url]: https://nodejs.org\n\n[deps]: https://img.shields.io/david/webpack/webpack.svg\n[deps-url]: https://david-dm.org/webpack/webpack\n\n[tests]: https://img.shields.io/travis/webpack/webpack/master.svg\n[tests-url]: https://travis-ci.org/webpack/webpack\n\n[builds-url]: https://ci.appveyor.com/project/sokra/webpack/branch/master\n[builds]: https://ci.appveyor.com/api/projects/status/github/webpack/webpack?svg=true\n\n[builds2]: https://dev.azure.com/webpack/webpack/_apis/build/status/webpack.webpack\n[builds2-url]: https://dev.azure.com/webpack/webpack/_build/latest?definitionId=3\n\n[licenses-url]: https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fwebpack%2Fwebpack?ref=badge_shield\n[licenses]: https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fwebpack%2Fwebpack.svg?type=shield\n\n[cover]: https://img.shields.io/coveralls/webpack/webpack.svg\n[cover-url]: https://coveralls.io/r/webpack/webpack/\n# mime-db\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-image]][node-url]\n[![Build Status][travis-image]][travis-url]\n[![Coverage Status][coveralls-image]][coveralls-url]\n\nThis is a database of all mime types.\nIt consists of a single, public JSON file and does not include any logic,\nallowing it to remain as un-opinionated as possible with an API.\nIt aggregates data from the following sources:\n\n- http://www.iana.org/assignments/media-types/media-types.xhtml\n- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types\n- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types\n\n## Installation\n\n```bash\nnpm install mime-db\n```\n\n### Database Download\n\nIf you're crazy enough to use this in the browser, you can just grab the\nJSON file using [jsDelivr](https://www.jsdelivr.com/). It is recommended to\nreplace `master` with [a release tag](https://github.com/jshttp/mime-db/tags)\nas the JSON format may change in the future.\n\n```\nhttps://cdn.jsdelivr.net/gh/jshttp/mime-db@master/db.json\n```\n\n## Usage\n\n```js\nvar db = require('mime-db');\n\n// grab data on .js files\nvar data = db['application/javascript'];\n```\n\n## Data Structure\n\nThe JSON file is a map lookup for lowercased mime types.\nEach mime type has the following properties:\n\n- `.source` - where the mime type is defined.\n If not set, it's probably a custom media type.\n - `apache` - [Apache common media types](http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)\n - `iana` - [IANA-defined media types](http://www.iana.org/assignments/media-types/media-types.xhtml)\n - `nginx` - [nginx media types](http://hg.nginx.org/nginx/raw-file/default/conf/mime.types)\n- `.extensions[]` - known extensions associated with this mime type.\n- `.compressible` - whether a file of this type can be gzipped.\n- `.charset` - the default charset associated with this type, if any.\n\nIf unknown, every property could be `undefined`.\n\n## Contributing\n\nTo edit the database, only make PRs against `src/custom.json` or\n`src/custom-suffix.json`.\n\nThe `src/custom.json` file is a JSON object with the MIME type as the keys\nand the values being an object with the following keys:\n\n- `compressible` - leave out if you don't know, otherwise `true`/`false` to\n indicate whether the data represented by the type is typically compressible.\n- `extensions` - include an array of file extensions that are associated with\n the type.\n- `notes` - human-readable notes about the type, typically what the type is.\n- `sources` - include an array of URLs of where the MIME type and the associated\n extensions are sourced from. This needs to be a [primary source](https://en.wikipedia.org/wiki/Primary_source);\n links to type aggregating sites and Wikipedia are _not acceptable_.\n\nTo update the build, run `npm run build`.\n\n## Adding Custom Media Types\n\nThe best way to get new media types included in this library is to register\nthem with the IANA. The community registration procedure is outlined in\n[RFC 6838 section 5](http://tools.ietf.org/html/rfc6838#section-5). Types\nregistered with the IANA are automatically pulled into this library.\n\n[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-db/master\n[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master\n[node-image]: https://badgen.net/npm/node/mime-db\n[node-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/mime-db\n[npm-url]: https://npmjs.org/package/mime-db\n[npm-version-image]: https://badgen.net/npm/v/mime-db\n[travis-image]: https://badgen.net/travis/jshttp/mime-db/master\n[travis-url]: https://travis-ci.org/jshttp/mime-db\n# Worker Farm [](http://travis-ci.org/rvagg/node-worker-farm)\n\n[](https://nodei.co/npm/worker-farm/) [](https://nodei.co/npm/worker-farm/)\n\nDistribute processing tasks to child processes with an über-simple API and baked-in durability & custom concurrency options. *Available in npm as <strong>worker-farm</strong>*.\n\n## Example\n\nGiven a file, *child.js*:\n\n```js\nmodule.exports = function (inp, callback) {\n callback(null, inp + ' BAR (' + process.pid + ')')\n}\n```\n\nAnd a main file:\n\n```js\nvar workerFarm = require('worker-farm')\n , workers = workerFarm(require.resolve('./child'))\n , ret = 0\n\nfor (var i = 0; i < 10; i++) {\n workers('#' + i + ' FOO', function (err, outp) {\n console.log(outp)\n if (++ret == 10)\n workerFarm.end(workers)\n })\n}\n```\n\nWe'll get an output something like the following:\n\n```\n#1 FOO BAR (8546)\n#0 FOO BAR (8545)\n#8 FOO BAR (8545)\n#9 FOO BAR (8546)\n#2 FOO BAR (8548)\n#4 FOO BAR (8551)\n#3 FOO BAR (8549)\n#6 FOO BAR (8555)\n#5 FOO BAR (8553)\n#7 FOO BAR (8557)\n```\n\nThis example is contained in the *[examples/basic](https://github.com/rvagg/node-worker-farm/tree/master/examples/basic/)* directory.\n\n### Example #1: Estimating π using child workers\n\nYou will also find a more complex example in *[examples/pi](https://github.com/rvagg/node-worker-farm/tree/master/examples/pi/)* that estimates the value of **π** by using a Monte Carlo *area-under-the-curve* method and compares the speed of doing it all in-process vs using child workers to complete separate portions.\n\nRunning `node examples/pi` will give you something like:\n\n```\nDoing it the slow (single-process) way...\nπ ≈ 3.1416269360000006 (0.0000342824102075312 away from actual!)\ntook 8341 milliseconds\nDoing it the fast (multi-process) way...\nπ ≈ 3.1416233600000036 (0.00003070641021052367 away from actual!)\ntook 1985 milliseconds\n```\n\n## Durability\n\nAn important feature of Worker Farm is **call durability**. If a child process dies for any reason during the execution of call(s), those calls will be re-queued and taken care of by other child processes. In this way, when you ask for something to be done, unless there is something *seriously* wrong with what you're doing, you should get a result on your callback function.\n\n## My use-case\n\nThere are other libraries for managing worker processes available but my use-case was fairly specific: I need to make heavy use of the [node-java](https://github.com/nearinfinity/node-java) library to interact with JVM code. Unfortunately, because the JVM garbage collector is so difficult to interact with, it's prone to killing your Node process when the GC kicks under heavy load. For safety I needed a durable way to make calls so that (1) it wouldn't kill my main process and (2) any calls that weren't successful would be resubmitted for processing.\n\nWorker Farm allows me to spin up multiple JVMs to be controlled by Node, and have a single, uncomplicated API that acts the same way as an in-process API and the calls will be taken care of by a child process even if an error kills a child process while it is working as the call will simply be passed to a new child process.\n\n**But**, don't think that Worker Farm is specific to that use-case, it's designed to be very generic and simple to adapt to anything requiring the use of child Node processes.\n\n## API\n\nWorker Farm exports a main function and an `end()` method. The main function sets up a \"farm\" of coordinated child-process workers and it can be used to instantiate multiple farms, all operating independently.\n\n### workerFarm([options, ]pathToModule[, exportedMethods])\n\nIn its most basic form, you call `workerFarm()` with the path to a module file to be invoked by the child process. You should use an **absolute path** to the module file, the best way to obtain the path is with `require.resolve('./path/to/module')`, this function can be used in exactly the same way as `require('./path/to/module')` but it returns an absolute path.\n\n#### `exportedMethods`\n\nIf your module exports a single function on `module.exports` then you should omit the final parameter. However, if you are exporting multiple functions on `module.exports` then you should list them in an Array of Strings:\n\n```js\nvar workers = workerFarm(require.resolve('./mod'), [ 'doSomething', 'doSomethingElse' ])\nworkers.doSomething(function () {})\nworkers.doSomethingElse(function () {})\n```\n\nListing the available methods will instruct Worker Farm what API to provide you with on the returned object. If you don't list a `exportedMethods` Array then you'll get a single callable function to use; but if you list the available methods then you'll get an object with callable functions by those names.\n\n**It is assumed that each function you call on your child module will take a `callback` function as the last argument.**\n\n#### `options`\n\nIf you don't provide an `options` object then the following defaults will be used:\n\n```js\n{\n workerOptions : {}\n , maxCallsPerWorker : Infinity\n , maxConcurrentWorkers : require('os').cpus().length\n , maxConcurrentCallsPerWorker : 10\n , maxConcurrentCalls : Infinity\n , maxCallTime : Infinity\n , maxRetries : Infinity\n , autoStart : false\n}\n```\n\n * **<code>workerOptions</code>** allows you to customize all the parameters passed to child nodes. This object supports [all possible options of `child_process.fork`](https://nodejs.org/api/child_process.html#child_process_child_process_fork_modulepath_args_options). The default options passed are the parent `execArgv`, `cwd` and `env`. Any (or all) of them can be overridden, and others can be added as well.\n\n * **<code>maxCallsPerWorker</code>** allows you to control the lifespan of your child processes. A positive number will indicate that you only want each child to accept that many calls before it is terminated. This may be useful if you need to control memory leaks or similar in child processes.\n\n * **<code>maxConcurrentWorkers</code>** will set the number of child processes to maintain concurrently. By default it is set to the number of CPUs available on the current system, but it can be any reasonable number, including `1`.\n\n * **<code>maxConcurrentCallsPerWorker</code>** allows you to control the *concurrency* of individual child processes. Calls are placed into a queue and farmed out to child processes according to the number of calls they are allowed to handle concurrently. It is arbitrarily set to 10 by default so that calls are shared relatively evenly across workers, however if your calls predictably take a similar amount of time then you could set it to `Infinity` and Worker Farm won't queue any calls but spread them evenly across child processes and let them go at it. If your calls aren't I/O bound then it won't matter what value you use here as the individual workers won't be able to execute more than a single call at a time.\n\n * **<code>maxConcurrentCalls</code>** allows you to control the maximum number of calls in the queue—either actively being processed or waiting for a worker to be processed. `Infinity` indicates no limit but if you have conditions that may endlessly queue jobs and you need to set a limit then provide a `>0` value and any calls that push the limit will return on their callback with a `MaxConcurrentCallsError` error (check `err.type == 'MaxConcurrentCallsError'`).\n\n * **<code>maxCallTime</code>** *(use with caution, understand what this does before you use it!)* when `!== Infinity`, will cap a time, in milliseconds, that *any single call* can take to execute in a worker. If this time limit is exceeded by just a single call then the worker running that call will be killed and any calls running on that worker will have their callbacks returned with a `TimeoutError` (check `err.type == 'TimeoutError'`). If you are running with `maxConcurrentCallsPerWorker` value greater than `1` then **all calls currently executing** will fail and will be automatically resubmitted uless you've changed the `maxRetries` option. Use this if you have jobs that may potentially end in infinite loops that you can't programatically end with your child code. Preferably run this with a `maxConcurrentCallsPerWorker` so you don't interrupt other calls when you have a timeout. This timeout operates on a per-call basis but will interrupt a whole worker.\n\n * **<code>maxRetries</code>** allows you to control the max number of call requeues after worker termination (unexpected or timeout). By default this option is set to `Infinity` which means that each call of each terminated worker will always be auto requeued. When the number of retries exceeds `maxRetries` value, the job callback will be executed with a `ProcessTerminatedError`. Note that if you are running with finite `maxCallTime` and `maxConcurrentCallsPerWorkers` greater than `1` then any `TimeoutError` will increase the retries counter *for each* concurrent call of the terminated worker.\n\n * **<code>autoStart</code>** when set to `true` will start the workers as early as possible. Use this when your workers have to do expensive initialization. That way they'll be ready when the first request comes through.\n\n### workerFarm.end(farm)\n\nChild processes stay alive waiting for jobs indefinitely and your farm manager will stay alive managing its workers, so if you need it to stop then you have to do so explicitly. If you send your farm API to `workerFarm.end()` then it'll cleanly end your worker processes. Note though that it's a *soft* ending so it'll wait for child processes to finish what they are working on before asking them to die.\n\nAny calls that are queued and not yet being handled by a child process will be discarded. `end()` only waits for those currently in progress.\n\nOnce you end a farm, it won't handle any more calls, so don't even try!\n\n## Related\n\n* [farm-cli](https://github.com/Kikobeats/farm-cli) – Launch a farm of workers from CLI.\n\n## License\n\nWorker Farm is Copyright (c) 2014 Rod Vagg [@rvagg](https://twitter.com/rvagg) and licensed under the MIT license. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.\n# true-case-path\n\n## Usage\n\n`trueCasePathSync(<fileSystemPath>)`\n\n## Description\n\nGiven a possibly case-variant version of an existing filesystem path, returns\nthe case-exact, normalized version as stored in the filesystem.\n\nIf the input path is a globbing *pattern* as defined by the 'glob' npm\npackage, only the 1st match, if any, is returned.\nOnly a literal input path guarantees an unambiguous result.\n\nIf no matching path exists, undefined is returned.\nOn case-SENSITIVE filesystems, a match will also be found, but if case\nvariations of a given path exist, it is undefined which match is returned.\n\n## Platforms\n\nWindows, OSX, and Linux (though note the limitations with case-insensitive filesystems).\n\n## Limitations\n\n- Paths starting with `'./'` are acceptable, but paths starting with `'../'`\n are not - when in doubt, resolve with `fs.realPathSync()` first.\n An initial `'.'` and *interior* `'..'` instances are normalized, but a relative\n input path still results in a relative output path. If you want to ensure\n an absolute output path, apply `fs.realPathSync()` to the result.\n- On Windows, no attempt is made to case-correct the drive letter or UNC-share\n component of the path.\n- Unicode support:\n - Be sure to use UTF8 source-code files (with a BOM on Windows)\n - On OSX, the input path is automatically converted to NFD Unicode form\n to match how the filesystem stores names, but note that the result will\n invariably be NFD too (which makes no difference for ASCII-characters-only\n names).\n\n## Examples\n\n```\nconst trueCasePathSync = require('true-case-path')\n\ntrueCasePathSync('/users/guest') // OSX: -> '/Users/Guest'\n\ntrueCasePathSync('c:\\\\users\\\\all users') // Windows: -> 'c:\\Users\\All Users'\n```\n\n## Attribution\n\nThe code for this project was sourced from [http://stackoverflow.com/a/33139702/45375](http://stackoverflow.com/a/33139702/45375)\n# regenerate-unicode-properties [](https://travis-ci.org/mathiasbynens/regenerate-unicode-properties)\n\n_regenerate-unicode-properties_ is a collection of [Regenerate](https://github.com/mathiasbynens/regenerate) sets for [various Unicode properties](https://github.com/tc39/proposal-regexp-unicode-property-escapes).\n\n## Installation\n\nTo use _regenerate-unicode-properties_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\n$ npm install regenerate-unicode-properties\n```\n\n## Usage\n\nTo get a map of supported properties and their values:\n\n```js\nconst properties = require('regenerate-unicode-properties');\n```\n\nTo get a specific Regenerate set:\n\n```js\n// Examples:\nconst Lu = require('regenerate-unicode-properties/General_Category/Uppercase_Letter.js');\nconst Greek = require('regenerate-unicode-properties/Script_Extensions/Greek.js');\n```\n\nTo get the Unicode version the data was based on:\n\n```js\nconst unicodeVersion = require('regenerate-unicode-properties/unicode-version.js');\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_regenerate-unicode-properties_ is available under the [MIT](https://mths.be/mit) license.\n# unicode-canonical-property-names-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-canonical-property-names-ecmascript)\n\n_unicode-canonical-property-names-ecmascript_ exports the set of canonical Unicode property names that are supported in [ECMAScript RegExp property escapes](https://github.com/tc39/proposal-regexp-unicode-property-escapes).\n\n## Installation\n\nTo use _unicode-canonical-property-names-ecmascript_, install it as a dependency via [npm](https://www.npmjs.com/):\n\n```bash\n$ npm install unicode-canonical-property-names-ecmascript\n```\n\nThen, `require` it:\n\n```js\nconst properties = require('unicode-canonical-property-names-ecmascript');\n```\n\n## Example\n\n```js\nproperties.has('ID_Start');\n// → true\nproperties.has('IDS');\n// → false\n```\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\n_unicode-canonical-property-names-ecmascript_ is available under the [MIT](https://mths.be/mit) license.\n# isobject [](https://www.npmjs.com/package/isobject) [](https://npmjs.org/package/isobject) [](https://travis-ci.org/jonschlinkert/isobject)\n\nReturns true if the value is an object and not an array or null.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install isobject --save\n```\n\nUse [is-plain-object](https://github.com/jonschlinkert/is-plain-object) if you want only objects that are created by the `Object` constructor.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install isobject\n```\n\nInstall with [bower](http://bower.io/)\n\n```sh\n$ bower install isobject\n```\n\n## Usage\n\n```js\nvar isObject = require('isobject');\n```\n\n**True**\n\nAll of the following return `true`:\n\n```js\nisObject({});\nisObject(Object.create({}));\nisObject(Object.create(Object.prototype));\nisObject(Object.create(null));\nisObject({});\nisObject(new Foo);\nisObject(/foo/);\n```\n\n**False**\n\nAll of the following return `false`:\n\n```js\nisObject();\nisObject(function () {});\nisObject(1);\nisObject([]);\nisObject(undefined);\nisObject(null);\n```\n\n## Related projects\n\nYou might also be interested in these projects:\n\n[merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep)\n\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow)\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object)\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of)\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/isobject/issues/new).\n\n## Building docs\n\nGenerate readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install verb && npm run docs\n```\n\nOr, if [verb](https://github.com/verbose/verb) is installed globally:\n\n```sh\n$ verb\n```\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/isobject/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on April 25, 2016._\n1to2 naively converts source code files from NAN 1 to NAN 2. There will be erroneous conversions,\nfalse positives and missed opportunities. The input files are rewritten in place. Make sure that\nyou have backups. You will have to manually review the changes afterwards and do some touchups.\n\n```sh\n$ tools/1to2.js\n\n Usage: 1to2 [options] <file ...>\n\n Options:\n\n -h, --help output usage information\n -V, --version output the version number\n```\n# define-property [](http://badge.fury.io/js/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i define-property --save\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## Related projects\n\n* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)\n* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._\nBrowser-friendly inheritance fully compatible with standard node.js\n[inherits](http://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor).\n\nThis package exports standard `inherits` from node.js `util` module in\nnode environment, but also provides alternative browser-friendly\nimplementation through [browser\nfield](https://gist.github.com/shtylman/4339901). Alternative\nimplementation is a literal copy of standard one located in standalone\nmodule to avoid requiring of `util`. It also has a shim for old\nbrowsers with no `Object.create` support.\n\nWhile keeping you sure you are using standard `inherits`\nimplementation in node.js environment, it allows bundlers such as\n[browserify](https://github.com/substack/node-browserify) to not\ninclude full `util` package to your client code if all you need is\njust `inherits` function. It worth, because browser shim for `util`\npackage is large and `inherits` is often the single function you need\nfrom it.\n\nIt's recommended to use this package instead of\n`require('util').inherits` for any code that has chances to be used\nnot only in node.js but in browser too.\n\n## usage\n\n```js\nvar inherits = require('inherits');\n// then use exactly as the standard one\n```\n\n## note on version ~1.0\n\nVersion ~1.0 had completely different motivation and is not compatible\nneither with 2.0 nor with standard node.js `inherits`.\n\nIf you are using version ~1.0 and planning to switch to ~2.0, be\ncareful:\n\n* new version uses `super_` instead of `super` for referencing\n superclass\n* new version overwrites current prototype while old one preserves any\n existing fields on it\n# url-parse\n\n[](http://unshift.io)[](https://www.npmjs.com/package/url-parse)[](https://travis-ci.org/unshiftio/url-parse)[](https://david-dm.org/unshiftio/url-parse)[](https://coveralls.io/r/unshiftio/url-parse?branch=master)[](https://webchat.freenode.net/?channels=unshift)\n\n[](https://saucelabs.com/u/url-parse)\n\nThe `url-parse` method exposes two different API interfaces. The\n[`url`](https://nodejs.org/api/url.html) interface that you know from Node.js\nand the new [`URL`](https://developer.mozilla.org/en-US/docs/Web/API/URL/URL)\ninterface that is available in the latest browsers.\n\nIn version `0.1` we moved from a DOM based parsing solution, using the `<a>`\nelement, to a full Regular Expression solution. The main reason for this was\nto make the URL parser available in different JavaScript environments as you\ndon't always have access to the DOM. An example of such environment is the\n[`Worker`](https://developer.mozilla.org/en/docs/Web/API/Worker) interface.\nThe RegExp based solution didn't work well as it required a lot of lookups\ncausing major problems in FireFox. In version `1.0.0` we ditched the RegExp\nbased solution in favor of a pure string parsing solution which chops up the\nURL into smaller pieces. This module still has a really small footprint as it\nhas been designed to be used on the client side.\n\nIn addition to URL parsing we also expose the bundled `querystringify` module.\n\n## Installation\n\nThis module is designed to be used using either browserify or Node.js it's\nreleased in the public npm registry and can be installed using:\n\n```\nnpm install url-parse\n```\n\n## Usage\n\nAll examples assume that this library is bootstrapped using:\n\n```js\n'use strict';\n\nvar Url = require('url-parse');\n```\n\nTo parse an URL simply call the `URL` method with the URL that needs to be\ntransformed into an object.\n\n```js\nvar url = new Url('https://github.com/foo/bar');\n```\n\nThe `new` keyword is optional but it will save you an extra function invocation.\nThe constructor takes the following arguments:\n\n- `url` (`String`): A string representing an absolute or relative URL.\n- `baseURL` (`Object` | `String`): An object or string representing\n the base URL to use in case `url` is a relative URL. This argument is\n optional and defaults to [`location`](https://developer.mozilla.org/en-US/docs/Web/API/Location)\n in the browser.\n- `parser` (`Boolean` | `Function`): This argument is optional and specifies\n how to parse the query string. By default it is `false` so the query string\n is not parsed. If you pass `true` the query string is parsed using the\n embedded `querystringify` module. If you pass a function the query string\n will be parsed using this function.\n\nAs said above we also support the Node.js interface so you can also use the\nlibrary in this way:\n\n```js\n'use strict';\n\nvar parse = require('url-parse')\n , url = parse('https://github.com/foo/bar', true);\n```\n\nThe returned `url` instance contains the following properties:\n\n- `protocol`: The protocol scheme of the URL (e.g. `http:`).\n- `slashes`: A boolean which indicates whether the `protocol` is followed by two\n forward slashes (`//`).\n- `auth`: Authentication information portion (e.g. `username:password`).\n- `username`: Username of basic authentication.\n- `password`: Password of basic authentication.\n- `host`: Host name with port number.\n- `hostname`: Host name without port number.\n- `port`: Optional port number.\n- `pathname`: URL path.\n- `query`: Parsed object containing query string, unless parsing is set to false.\n- `hash`: The \"fragment\" portion of the URL including the pound-sign (`#`).\n- `href`: The full URL.\n- `origin`: The origin of the URL.\n\nNote that when `url-parse` is used in a browser environment, it will default to\nusing the browser's current window location as the base URL when parsing all\ninputs. To parse an input independently of the browser's current URL (e.g. for\nfunctionality parity with the library in a Node environment), pass an empty\nlocation object as the second parameter:\n\n```js\nvar parse = require('url-parse');\nparse('hostname', {});\n```\n\n### Url.set(key, value)\n\nA simple helper function to change parts of the URL and propagating it through\nall properties. When you set a new `host` you want the same value to be applied\nto `port` if has a different port number, `hostname` so it has a correct name\nagain and `href` so you have a complete URL.\n\n```js\nvar parsed = parse('http://google.com/parse-things');\n\nparsed.set('hostname', 'yahoo.com');\nconsole.log(parsed.href); // http://yahoo.com/parse-things\n```\n\nIt's aware of default ports so you cannot set a port 80 on an URL which has\n`http` as protocol.\n\n### Url.toString()\n\nThe returned `url` object comes with a custom `toString` method which will\ngenerate a full URL again when called. The method accepts an extra function\nwhich will stringify the query string for you. If you don't supply a function we\nwill use our default method.\n\n```js\nvar location = url.toString(); // http://example.com/whatever/?qs=32\n```\n\nYou would rarely need to use this method as the full URL is also available as\n`href` property. If you are using the `URL.set` method to make changes, this\nwill automatically update.\n\n## Testing\n\nThe testing of this module is done in 3 different ways:\n\n1. We have unit tests that run under Node.js. You can run these tests with the\n `npm test` command.\n2. Code coverage can be run manually using `npm run coverage`.\n3. For browser testing we use Sauce Labs and `zuul`. You can run browser tests\n using the `npm run test-browser` command.\n\n## License\n\n[MIT](LICENSE)\nThese files are compiled dot templates from dot folder.\n\nDo NOT edit them directly, edit the templates and run `npm run build` from main ajv-keywords folder.\n# compressible\n\n[![NPM Version][npm-version-image]][npm-url]\n[![NPM Downloads][npm-downloads-image]][npm-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nCompressible `Content-Type` / `mime` checking.\n\n## Installation\n\n```sh\n$ npm install compressible\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar compressible = require('compressible')\n```\n\n### compressible(type)\n\nChecks if the given `Content-Type` is compressible. The `type` argument is expected\nto be a value MIME type or `Content-Type` string, though no validation is performed.\n\nThe MIME is looked up in the [`mime-db`](https://www.npmjs.com/package/mime-db) and\nif there is compressible information in the database entry, that is returned. Otherwise,\nthis module will fallback to `true` for the following types:\n\n * `text/*`\n * `*/*+json`\n * `*/*+text`\n * `*/*+xml`\n\nIf this module is not sure if a type is specifically compressible or specifically\nuncompressible, `undefined` is returned.\n\n<!-- eslint-disable no-undef -->\n\n```js\ncompressible('text/html') // => true\ncompressible('image/png') // => false\n```\n\n## License\n\n[MIT](LICENSE)\n\n[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/compressible/master\n[coveralls-url]: https://coveralls.io/r/jshttp/compressible?branch=master\n[node-version-image]: https://badgen.net/npm/node/compressible\n[node-version-url]: https://nodejs.org/en/download\n[npm-downloads-image]: https://badgen.net/npm/dm/compressible\n[npm-url]: https://npmjs.org/package/compressible\n[npm-version-image]: https://badgen.net/npm/v/compressible\n[travis-image]: https://badgen.net/travis/jshttp/compressible/master\n[travis-url]: https://travis-ci.org/jshttp/compressible\nThis package parses [SPDX license expression](https://spdx.org/spdx-specification-21-web-version#h.jxpfx0ykyb60) strings describing license terms, like [package.json license strings](https://docs.npmjs.com/files/package.json#license), into consistently structured ECMAScript objects. The npm command-line interface depends on this package, as do many automatic license-audit tools.\n\nIn a nutshell:\n\n```javascript\nvar parse = require('spdx-expression-parse')\nvar assert = require('assert')\n\nassert.deepEqual(\n // Licensed under the terms of the Two-Clause BSD License.\n parse('BSD-2-Clause'),\n {license: 'BSD-2-Clause'}\n)\n\nassert.throws(function () {\n // An invalid SPDX license expression.\n // Should be `Apache-2.0`.\n parse('Apache 2')\n})\n\nassert.deepEqual(\n // Dual licensed under either:\n // - LGPL 2.1\n // - a combination of Three-Clause BSD and MIT\n parse('(LGPL-2.1 OR BSD-3-Clause AND MIT)'),\n {\n left: {license: 'LGPL-2.1'},\n conjunction: 'or',\n right: {\n left: {license: 'BSD-3-Clause'},\n conjunction: 'and',\n right: {license: 'MIT'}\n }\n }\n)\n```\n\nThe syntax comes from the [Software Package Data eXchange (SPDX)](https://spdx.org/), a standard from the [Linux Foundation](https://www.linuxfoundation.org) for shareable data about software package license terms. SPDX aims to make sharing and auditing license data easy, especially for users of open-source software.\n\nThe bulk of the SPDX standard describes syntax and semantics of XML metadata files. This package implements two lightweight, plain-text components of that larger standard:\n\n1. The [license list](https://spdx.org/licenses), a mapping from specific string identifiers, like `Apache-2.0`, to standard form license texts and bolt-on license exceptions. The [spdx-license-ids](https://www.npmjs.com/package/spdx-exceptions) and [spdx-exceptions](https://www.npmjs.com/package/spdx-license-ids) packages implement the license list. `spdx-expression-parse` depends on and `require()`s them.\n\n Any license identifier from the license list is a valid license expression:\n\n ```javascript\n var identifiers = []\n .concat(require('spdx-license-ids'))\n .concat(require('spdx-license-ids/deprecated'))\n\n identifiers.forEach(function (id) {\n assert.deepEqual(parse(id), {license: id})\n })\n ```\n\n So is any license identifier `WITH` a standardized license exception:\n\n ```javascript\n identifiers.forEach(function (id) {\n require('spdx-exceptions').forEach(function (e) {\n assert.deepEqual(\n parse(id + ' WITH ' + e),\n {license: id, exception: e}\n )\n })\n })\n ```\n\n2. The license expression language, for describing simple and complex license terms, like `MIT` for MIT-licensed and `(GPL-2.0 OR Apache-2.0)` for dual-licensing under GPL 2.0 and Apache 2.0. `spdx-expression-parse` itself implements license expression language, exporting a parser.\n\n ```javascript\n assert.deepEqual(\n // Licensed under a combination of:\n // - the MIT License AND\n // - a combination of:\n // - LGPL 2.1 (or a later version) AND\n // - Three-Clause BSD\n parse('(MIT AND (LGPL-2.1+ AND BSD-3-Clause))'),\n {\n left: {license: 'MIT'},\n conjunction: 'and',\n right: {\n left: {license: 'LGPL-2.1', plus: true},\n conjunction: 'and',\n right: {license: 'BSD-3-Clause'}\n }\n }\n )\n ```\n\nThe Linux Foundation and its contributors license the SPDX standard under the terms of [the Creative Commons Attribution License 3.0 Unported (SPDX: \"CC-BY-3.0\")](http://spdx.org/licenses/CC-BY-3.0). \"SPDX\" is a United States federally registered trademark of the Linux Foundation. The authors of this package license their work under the terms of the MIT License.\n# balanced-match\n\nMatch balanced string pairs, like `{` and `}` or `<b>` and `</b>`. Supports regular expressions as well!\n\n[](http://travis-ci.org/juliangruber/balanced-match)\n[](https://www.npmjs.org/package/balanced-match)\n\n[](https://ci.testling.com/juliangruber/balanced-match)\n\n## Example\n\nGet the first matching pair of braces:\n\n```js\nvar balanced = require('balanced-match');\n\nconsole.log(balanced('{', '}', 'pre{in{nested}}post'));\nconsole.log(balanced('{', '}', 'pre{first}between{second}post'));\nconsole.log(balanced(/\\s+\\{\\s+/, /\\s+\\}\\s+/, 'pre { in{nest} } post'));\n```\n\nThe matches are:\n\n```bash\n$ node example.js\n{ start: 3, end: 14, pre: 'pre', body: 'in{nested}', post: 'post' }\n{ start: 3,\n end: 9,\n pre: 'pre',\n body: 'first',\n post: 'between{second}post' }\n{ start: 3, end: 17, pre: 'pre', body: 'in{nest}', post: 'post' }\n```\n\n## API\n\n### var m = balanced(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\nobject with those keys:\n\n* **start** the index of the first match of `a`\n* **end** the index of the matching `b`\n* **pre** the preamble, `a` and `b` not included\n* **body** the match, `a` and `b` not included\n* **post** the postscript, `a` and `b` not included\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `['{', 'a', '']` and `{a}}` will match `['', 'a', '}']`.\n\n### var r = balanced.range(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\narray with indexes: `[ <a index>, <b index> ]`.\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `[ 1, 3 ]` and `{a}}` will match `[0, 2]`.\n\n## Installation\n\nWith [npm](https://npmjs.org) do:\n\n```bash\nnpm install balanced-match\n```\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# finalhandler\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-image]][node-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nNode.js function to invoke as the final step to respond to HTTP request.\n\n## Installation\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install finalhandler\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar finalhandler = require('finalhandler')\n```\n\n### finalhandler(req, res, [options])\n\nReturns function to be invoked as the final step for the given `req` and `res`.\nThis function is to be invoked as `fn(err)`. If `err` is falsy, the handler will\nwrite out a 404 response to the `res`. If it is truthy, an error response will\nbe written out to the `res`.\n\nWhen an error is written, the following information is added to the response:\n\n * The `res.statusCode` is set from `err.status` (or `err.statusCode`). If\n this value is outside the 4xx or 5xx range, it will be set to 500.\n * The `res.statusMessage` is set according to the status code.\n * The body will be the HTML of the status code message if `env` is\n `'production'`, otherwise will be `err.stack`.\n * Any headers specified in an `err.headers` object.\n\nThe final handler will also unpipe anything from `req` when it is invoked.\n\n#### options.env\n\nBy default, the environment is determined by `NODE_ENV` variable, but it can be\noverridden by this option.\n\n#### options.onerror\n\nProvide a function to be called with the `err` when it exists. Can be used for\nwriting errors to a central location without excessive function generation. Called\nas `onerror(err, req, res)`.\n\n## Examples\n\n### always 404\n\n```js\nvar finalhandler = require('finalhandler')\nvar http = require('http')\n\nvar server = http.createServer(function (req, res) {\n var done = finalhandler(req, res)\n done()\n})\n\nserver.listen(3000)\n```\n\n### perform simple action\n\n```js\nvar finalhandler = require('finalhandler')\nvar fs = require('fs')\nvar http = require('http')\n\nvar server = http.createServer(function (req, res) {\n var done = finalhandler(req, res)\n\n fs.readFile('index.html', function (err, buf) {\n if (err) return done(err)\n res.setHeader('Content-Type', 'text/html')\n res.end(buf)\n })\n})\n\nserver.listen(3000)\n```\n\n### use with middleware-style functions\n\n```js\nvar finalhandler = require('finalhandler')\nvar http = require('http')\nvar serveStatic = require('serve-static')\n\nvar serve = serveStatic('public')\n\nvar server = http.createServer(function (req, res) {\n var done = finalhandler(req, res)\n serve(req, res, done)\n})\n\nserver.listen(3000)\n```\n\n### keep log of all errors\n\n```js\nvar finalhandler = require('finalhandler')\nvar fs = require('fs')\nvar http = require('http')\n\nvar server = http.createServer(function (req, res) {\n var done = finalhandler(req, res, {onerror: logerror})\n\n fs.readFile('index.html', function (err, buf) {\n if (err) return done(err)\n res.setHeader('Content-Type', 'text/html')\n res.end(buf)\n })\n})\n\nserver.listen(3000)\n\nfunction logerror (err) {\n console.error(err.stack || err.toString())\n}\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/finalhandler.svg\n[npm-url]: https://npmjs.org/package/finalhandler\n[node-image]: https://img.shields.io/node/v/finalhandler.svg\n[node-url]: https://nodejs.org/en/download\n[travis-image]: https://img.shields.io/travis/pillarjs/finalhandler.svg\n[travis-url]: https://travis-ci.org/pillarjs/finalhandler\n[coveralls-image]: https://img.shields.io/coveralls/pillarjs/finalhandler.svg\n[coveralls-url]: https://coveralls.io/r/pillarjs/finalhandler?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/finalhandler.svg\n[downloads-url]: https://npmjs.org/package/finalhandler\n# es-to-primitive <sup>[![Version Badge][npm-version-svg]][package-url]</sup>\n\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][npm-badge-png]][package-url]\n\nECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.\nWhen different versions of the spec conflict, the default export will be the latest version of the abstract operation.\nAlternative versions will also be available under an `es5`/`es2015` exported property if you require a specific version.\n\n## Example\n\n```js\nvar toPrimitive = require('es-to-primitive');\nvar assert = require('assert');\n\nassert(toPrimitive(function () {}) === String(function () {}));\n\nvar date = new Date();\nassert(toPrimitive(date) === String(date));\n\nassert(toPrimitive({ valueOf: function () { return 3; } }) === 3);\n\nassert(toPrimitive(['a', 'b', 3]) === String(['a', 'b', 3]));\n\nvar sym = Symbol();\nassert(toPrimitive(Object(sym)) === sym);\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[package-url]: https://npmjs.org/package/es-to-primitive\n[npm-version-svg]: http://versionbadg.es/ljharb/es-to-primitive.svg\n[travis-svg]: https://travis-ci.org/ljharb/es-to-primitive.svg\n[travis-url]: https://travis-ci.org/ljharb/es-to-primitive\n[deps-svg]: https://david-dm.org/ljharb/es-to-primitive.svg\n[deps-url]: https://david-dm.org/ljharb/es-to-primitive\n[dev-deps-svg]: https://david-dm.org/ljharb/es-to-primitive/dev-status.svg\n[dev-deps-url]: https://david-dm.org/ljharb/es-to-primitive#info=devDependencies\n[testling-svg]: https://ci.testling.com/ljharb/es-to-primitive.png\n[testling-url]: https://ci.testling.com/ljharb/es-to-primitive\n[npm-badge-png]: https://nodei.co/npm/es-to-primitive.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/es-to-primitive.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/es-to-primitive.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=es-to-primitive\n# minimatch\n\nA minimal matching utility.\n\n[](http://travis-ci.org/isaacs/minimatch)\n\nThis is the matching library used internally by npm.\n\nIt works by converting glob expressions into JavaScript `RegExp`\nobjects.\n\n## Usage\n\n```javascript\nvar minimatch = require(\"minimatch\")\n\nminimatch(\"bar.foo\", \"*.foo\") // true!\nminimatch(\"bar.foo\", \"*.bar\") // false!\nminimatch(\"bar.foo\", \"*.+(bar|foo)\", { debug: true }) // true, and noisy!\n```\n\n## Features\n\nSupports these glob features:\n\n* Brace Expansion\n* Extended glob matching\n* \"Globstar\" `**` matching\n\nSee:\n\n* `man sh`\n* `man bash`\n* `man 3 fnmatch`\n* `man 5 gitignore`\n\n## Minimatch Class\n\nCreate a minimatch object by instantiating the `minimatch.Minimatch` class.\n\n```javascript\nvar Minimatch = require(\"minimatch\").Minimatch\nvar mm = new Minimatch(pattern, options)\n```\n\n### Properties\n\n* `pattern` The original pattern the minimatch object represents.\n* `options` The options supplied to the constructor.\n* `set` A 2-dimensional array of regexp or string expressions.\n Each row in the\n array corresponds to a brace-expanded pattern. Each item in the row\n corresponds to a single path-part. For example, the pattern\n `{a,b/c}/d` would expand to a set of patterns like:\n\n [ [ a, d ]\n , [ b, c, d ] ]\n\n If a portion of the pattern doesn't have any \"magic\" in it\n (that is, it's something like `\"foo\"` rather than `fo*o?`), then it\n will be left as a string rather than converted to a regular\n expression.\n\n* `regexp` Created by the `makeRe` method. A single regular expression\n expressing the entire pattern. This is useful in cases where you wish\n to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.\n* `negate` True if the pattern is negated.\n* `comment` True if the pattern is a comment.\n* `empty` True if the pattern is `\"\"`.\n\n### Methods\n\n* `makeRe` Generate the `regexp` member if necessary, and return it.\n Will return `false` if the pattern is invalid.\n* `match(fname)` Return true if the filename matches the pattern, or\n false otherwise.\n* `matchOne(fileArray, patternArray, partial)` Take a `/`-split\n filename, and match it against a single row in the `regExpSet`. This\n method is mainly for internal use, but is exposed so that it can be\n used by a glob-walker that needs to avoid excessive filesystem calls.\n\nAll other methods are internal, and will be called as necessary.\n\n### minimatch(path, pattern, options)\n\nMain export. Tests a path against the pattern using the options.\n\n```javascript\nvar isJS = minimatch(file, \"*.js\", { matchBase: true })\n```\n\n### minimatch.filter(pattern, options)\n\nReturns a function that tests its\nsupplied argument, suitable for use with `Array.filter`. Example:\n\n```javascript\nvar javascripts = fileList.filter(minimatch.filter(\"*.js\", {matchBase: true}))\n```\n\n### minimatch.match(list, pattern, options)\n\nMatch against the list of\nfiles, in the style of fnmatch or glob. If nothing is matched, and\noptions.nonull is set, then return a list containing the pattern itself.\n\n```javascript\nvar javascripts = minimatch.match(fileList, \"*.js\", {matchBase: true}))\n```\n\n### minimatch.makeRe(pattern, options)\n\nMake a regular expression object from the pattern.\n\n## Options\n\nAll options are `false` by default.\n\n### debug\n\nDump a ton of stuff to stderr.\n\n### nobrace\n\nDo not expand `{a,b}` and `{1..3}` brace sets.\n\n### noglobstar\n\nDisable `**` matching against multiple folder names.\n\n### dot\n\nAllow patterns to match filenames starting with a period, even if\nthe pattern does not explicitly have a period in that spot.\n\nNote that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`\nis set.\n\n### noext\n\nDisable \"extglob\" style patterns like `+(a|b)`.\n\n### nocase\n\nPerform a case-insensitive match.\n\n### nonull\n\nWhen a match is not found by `minimatch.match`, return a list containing\nthe pattern itself if this option is set. When not set, an empty list\nis returned if there are no matches.\n\n### matchBase\n\nIf set, then patterns without slashes will be matched\nagainst the basename of the path if it contains slashes. For example,\n`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.\n\n### nocomment\n\nSuppress the behavior of treating `#` at the start of a pattern as a\ncomment.\n\n### nonegate\n\nSuppress the behavior of treating a leading `!` character as negation.\n\n### flipNegate\n\nReturns from negate expressions the same as if they were not negated.\n(Ie, true on a hit, false on a miss.)\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between minimatch and other\nimplementations, and are intentional.\n\nIf the pattern starts with a `!` character, then it is negated. Set the\n`nonegate` flag to suppress this behavior, and treat leading `!`\ncharacters normally. This is perhaps relevant if you wish to start the\npattern with a negative extglob pattern like `!(a|B)`. Multiple `!`\ncharacters at the start of a pattern will negate the pattern multiple\ntimes.\n\nIf a pattern starts with `#`, then it is treated as a comment, and\nwill not match anything. Use `\\#` to match a literal `#` at the\nstart of a line, or set the `nocomment` flag to suppress this behavior.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.1, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen minimatch.match returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`minimatch.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n# prr [](http://travis-ci.org/rvagg/prr)\n\nAn sensible alternative to `Object.defineProperty()`. Available in npm and Ender as **prr**.\n\n## Usage\n\nSet the property `'foo'` (`obj.foo`) to have the value `'bar'` with default options (`'enumerable'`, `'configurable'` and `'writable'` are all `false`):\n\n```js\nprr(obj, 'foo', 'bar')\n```\n\nAdjust the default options:\n\n```js\nprr(obj, 'foo', 'bar', { enumerable: true, writable: true })\n```\n\nDo the same operation for multiple properties:\n\n```js\nprr(obj, { one: 'one', two: 'two' })\n// or with options:\nprr(obj, { one: 'one', two: 'two' }, { enumerable: true, writable: true })\n```\n\n### Simplify!\n\nBut obviously, having to write out the full options object makes it nearly as bad as the original `Object.defineProperty()` so we can simplify.\n\nAs an alternative method we can use an options string where each character represents a option: `'e'=='enumerable'`, `'c'=='configurable'` and `'w'=='writable'`:\n\n```js\nprr(obj, 'foo', 'bar', 'ew') // enumerable and writable but not configurable\n// muliple properties:\nprr(obj, { one: 'one', two: 'two' }, 'ewc') // configurable too\n```\n\n## Where can I use it?\n\nAnywhere! For pre-ES5 environments *prr* will simply fall-back to an `object[property] = value` so you can get close to what you want.\n\n*prr* is Ender-compatible so you can include it in your Ender build and `$.prr(...)` or `var prr = require('prr'); prr(...)`.\n\n## Licence\n\nprr is Copyright (c) 2013 Rod Vagg [@rvagg](https://twitter.com/rvagg) and licensed under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.\n# wbuf\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# has-values [](https://www.npmjs.com/package/has-values) [](https://npmjs.org/package/has-values) [](https://npmjs.org/package/has-values) [](https://travis-ci.org/jonschlinkert/has-values)\n\n> Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save has-values\n```\n\n## Usage\n\n```js\nvar hasValue = require('has-values');\n\nhasValue('a');\n//=> true\n\nhasValue('');\n//=> false\n\nhasValue(1);\n//=> true\n\nhasValue(0);\n//=> false\n\nhasValue({a: 'a'}});\n//=> true\n\nhasValue({});\nhasValue({foo: undefined});\n//=> false\n\nhasValue({foo: null});\n//=> true\n\nhasValue(['a']);\n//=> true\n\nhasValue([]);\nhasValue([[], []]);\nhasValue([[[]]]);\n//=> false\n\nhasValue(['foo']);\nhasValue([0]);\n//=> true\n\nhasValue(function(foo) {}); \n//=> true\n\nhasValue(function() {});\n//=> true\n\nhasValue(true);\n//=> true\n\nhasValue(false);\n//=> true\n```\n\n## isEmpty\n\nTo test for empty values, do:\n\n```js\nfunction isEmpty(o, isZero) {\n return !hasValue(o, isZero);\n}\n```\n\n## Release history\n\n### v1.0.0\n\n* `zero` always returns true\n* `array` now recurses, so that an array of empty arrays will return `false`\n* `null` now returns true\n\n## About\n\n### Related projects\n\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value \"Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 19, 2017._\n# `scheduler`\n\nThis is a package for cooperative scheduling in a browser environment. It is currently used internally by React, but we plan to make it more generic.\n\nThe public API for this package is not yet finalized.\n\n### Thanks\n\nThe React team thanks [Anton Podviaznikov](https://podviaznikov.com/) for donating the `scheduler` package name.\n# fill-range [](https://www.npmjs.com/package/fill-range) [](https://npmjs.org/package/fill-range) [](https://npmjs.org/package/fill-range) [](https://travis-ci.org/jonschlinkert/fill-range)\n\n> Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`\n\n## Table of Contents\n\n- [Install](#install)\n- [Usage](#usage)\n- [Examples](#examples)\n- [Options](#options)\n * [options.step](#optionsstep)\n * [options.strictRanges](#optionsstrictranges)\n * [options.stringify](#optionsstringify)\n * [options.toRegex](#optionstoregex)\n * [options.transform](#optionstransform)\n- [About](#about)\n\n_(TOC generated by [verb](https://github.com/verbose/verb) using [markdown-toc](https://github.com/jonschlinkert/markdown-toc))_\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save fill-range\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add fill-range\n```\n\n## Usage\n\nExpands numbers and letters, optionally using a `step` as the last argument. _(Numbers may be defined as JavaScript numbers or strings)_.\n\n```js\nvar fill = require('fill-range');\nfill(from, to[, step, options]);\n\n// examples\nconsole.log(fill('1', '10')); //=> '[ '1', '2', '3', '4', '5', '6', '7', '8', '9', '10' ]'\nconsole.log(fill('1', '10', {toRegex: true})); //=> [1-9]|10\n```\n\n**Params**\n\n* `from`: **{String|Number}** the number or letter to start with\n* `to`: **{String|Number}** the number or letter to end with\n* `step`: **{String|Number|Object|Function}** Optionally pass a [step](#optionsstep) to use.\n* `options`: **{Object|Function}**: See all available [options](#options)\n\n## Examples\n\nBy default, an array of values is returned.\n\n**Alphabetical ranges**\n\n```js\nconsole.log(fill('a', 'e')); //=> ['a', 'b', 'c', 'd', 'e']\nconsole.log(fill('A', 'E')); //=> [ 'A', 'B', 'C', 'D', 'E' ]\n```\n\n**Numerical ranges**\n\nNumbers can be defined as actual numbers or strings.\n\n```js\nconsole.log(fill(1, 5)); //=> [ 1, 2, 3, 4, 5 ]\nconsole.log(fill('1', '5')); //=> [ 1, 2, 3, 4, 5 ]\n```\n\n**Negative ranges**\n\nNumbers can be defined as actual numbers or strings.\n\n```js\nconsole.log(fill('-5', '-1')); //=> [ '-5', '-4', '-3', '-2', '-1' ]\nconsole.log(fill('-5', '5')); //=> [ '-5', '-4', '-3', '-2', '-1', '0', '1', '2', '3', '4', '5' ]\n```\n\n**Steps (increments)**\n\n```js\n// numerical ranges with increments\nconsole.log(fill('0', '25', 4)); //=> [ '0', '4', '8', '12', '16', '20', '24' ]\nconsole.log(fill('0', '25', 5)); //=> [ '0', '5', '10', '15', '20', '25' ]\nconsole.log(fill('0', '25', 6)); //=> [ '0', '6', '12', '18', '24' ]\n\n// alphabetical ranges with increments\nconsole.log(fill('a', 'z', 4)); //=> [ 'a', 'e', 'i', 'm', 'q', 'u', 'y' ]\nconsole.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]\nconsole.log(fill('a', 'z', 6)); //=> [ 'a', 'g', 'm', 's', 'y' ]\n```\n\n## Options\n\n### options.step\n\n**Type**: `number` (formatted as a string or number)\n\n**Default**: `undefined`\n\n**Description**: The increment to use for the range. Can be used with letters or numbers.\n\n**Example(s)**\n\n```js\n// numbers\nconsole.log(fill('1', '10', 2)); //=> [ '1', '3', '5', '7', '9' ]\nconsole.log(fill('1', '10', 3)); //=> [ '1', '4', '7', '10' ]\nconsole.log(fill('1', '10', 4)); //=> [ '1', '5', '9' ]\n\n// letters\nconsole.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]\nconsole.log(fill('a', 'z', 7)); //=> [ 'a', 'h', 'o', 'v' ]\nconsole.log(fill('a', 'z', 9)); //=> [ 'a', 'j', 's' ]\n```\n\n### options.strictRanges\n\n**Type**: `boolean`\n\n**Default**: `false`\n\n**Description**: By default, `null` is returned when an invalid range is passed. Enable this option to throw a `RangeError` on invalid ranges.\n\n**Example(s)**\n\nThe following are all invalid:\n\n```js\nfill('1.1', '2'); // decimals not supported in ranges\nfill('a', '2'); // incompatible range values\nfill(1, 10, 'foo'); // invalid \"step\" argument\n```\n\n### options.stringify\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\n**Description**: Cast all returned values to strings. By default, integers are returned as numbers.\n\n**Example(s)**\n\n```js\nconsole.log(fill(1, 5)); //=> [ 1, 2, 3, 4, 5 ]\nconsole.log(fill(1, 5, {stringify: true})); //=> [ '1', '2', '3', '4', '5' ]\n```\n\n### options.toRegex\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\n**Description**: Create a regex-compatible source string, instead of expanding values to an array.\n\n**Example(s)**\n\n```js\n// alphabetical range\nconsole.log(fill('a', 'e', {toRegex: true})); //=> '[a-e]'\n// alphabetical with step\nconsole.log(fill('a', 'z', 3, {toRegex: true})); //=> 'a|d|g|j|m|p|s|v|y'\n// numerical range\nconsole.log(fill('1', '100', {toRegex: true})); //=> '[1-9]|[1-9][0-9]|100'\n// numerical range with zero padding\nconsole.log(fill('000001', '100000', {toRegex: true}));\n//=> '0{5}[1-9]|0{4}[1-9][0-9]|0{3}[1-9][0-9]{2}|0{2}[1-9][0-9]{3}|0[1-9][0-9]{4}|100000'\n```\n\n### options.transform\n\n**Type**: `function`\n\n**Default**: `undefined`\n\n**Description**: Customize each value in the returned array (or [string](#optionstoRegex)). _(you can also pass this function as the last argument to `fill()`)_.\n\n**Example(s)**\n\n```js\n// increase padding by two\nvar arr = fill('01', '05', function(val, a, b, step, idx, arr, options) {\n return repeat('0', (options.maxLength + 2) - val.length) + val;\n});\n\nconsole.log(arr);\n//=> ['0001', '0002', '0003', '0004', '0005']\n```\n\n## About\n\n### Related projects\n\n* [braces](https://www.npmjs.com/package/braces): Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces \"Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces specification, without sacrificing speed.\")\n* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range \"Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n* [to-regex-range](https://www.npmjs.com/package/to-regex-range): Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than… [more](https://github.com/jonschlinkert/to-regex-range) | [homepage](https://github.com/jonschlinkert/to-regex-range \"Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.87 million test assertions.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 103 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 2 | [paulmillr](https://github.com/paulmillr) | \n| 1 | [edorivai](https://github.com/edorivai) | \n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) | \n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 23, 2017._\n# regex-not [](https://www.npmjs.com/package/regex-not) [](https://npmjs.org/package/regex-not) [](https://npmjs.org/package/regex-not) [](https://travis-ci.org/jonschlinkert/regex-not)\n\n> Create a javascript regular expression for matching everything except for the given string.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save regex-not\n```\n\n## Usage\n\n```js\nvar not = require('regex-not');\n```\n\nThe main export is a function that takes a string an options object.\n\n```js\nnot(string[, options]);\n```\n\n**Example**\n\n```js\nvar not = require('regex-not');\nconsole.log(not('foo'));\n//=> /^(?:(?!^(?:foo)$).)+$/\n```\n\n**Strict matching**\n\nBy default, the returned regex is for strictly (not) matching the exact given pattern (in other words, \"match this string if it does NOT _exactly equal_ `foo`\"):\n\n```js\nvar re = not('foo');\nconsole.log(re.test('foo')); //=> false\nconsole.log(re.test('bar')); //=> true\nconsole.log(re.test('foobar')); //=> true\nconsole.log(re.test('barfoo')); //=> true\n```\n\n### .create\n\nReturns a string to allow you to create your own regex:\n\n```js\nconsole.log(not.create('foo'));\n//=> '(?:(?!^(?:foo)$).)+'\n```\n\n### Options\n\n**options.contains**\n\nYou can relax strict matching by setting `options.contains` to true (in other words, \"match this string if it does NOT _contain_ `foo`\"):\n\n```js\nvar re = not('foo');\nconsole.log(re.test('foo', {contains: true})); //=> false\nconsole.log(re.test('bar', {contains: true})); //=> true\nconsole.log(re.test('foobar', {contains: true})); //=> false\nconsole.log(re.test('barfoo', {contains: true})); //=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [regex-cache](https://www.npmjs.com/package/regex-cache): Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of… [more](https://github.com/jonschlinkert/regex-cache) | [homepage](https://github.com/jonschlinkert/regex-cache \"Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of the same string and options, resulting in surprising performance improvements.\")\n* [to-regex](https://www.npmjs.com/package/to-regex): Generate a regex from a string or array of strings. | [homepage](https://github.com/jonschlinkert/to-regex \"Generate a regex from a string or array of strings.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 9 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [EdwardBetts](https://github.com/EdwardBetts) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 19, 2018._\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n# ssri [](https://npm.im/ssri) [](https://npm.im/ssri) [](https://travis-ci.org/zkat/ssri) [](https://ci.appveyor.com/project/zkat/ssri) [](https://coveralls.io/github/zkat/ssri?branch=latest)\n\n[`ssri`](https://github.com/zkat/ssri), short for Standard Subresource\nIntegrity, is a Node.js utility for parsing, manipulating, serializing,\ngenerating, and verifying [Subresource\nIntegrity](https://w3c.github.io/webappsec/specs/subresourceintegrity/) hashes.\n\n## Install\n\n`$ npm install --save ssri`\n\n## Table of Contents\n\n* [Example](#example)\n* [Features](#features)\n* [Contributing](#contributing)\n* [API](#api)\n * Parsing & Serializing\n * [`parse`](#parse)\n * [`stringify`](#stringify)\n * [`Integrity#concat`](#integrity-concat)\n * [`Integrity#toString`](#integrity-to-string)\n * [`Integrity#toJSON`](#integrity-to-json)\n * [`Integrity#match`](#integrity-match)\n * [`Integrity#pickAlgorithm`](#integrity-pick-algorithm)\n * [`Integrity#hexDigest`](#integrity-hex-digest)\n * Integrity Generation\n * [`fromHex`](#from-hex)\n * [`fromData`](#from-data)\n * [`fromStream`](#from-stream)\n * [`create`](#create)\n * Integrity Verification\n * [`checkData`](#check-data)\n * [`checkStream`](#check-stream)\n * [`integrityStream`](#integrity-stream)\n\n### Example\n\n```javascript\nconst ssri = require('ssri')\n\nconst integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'\n\n// Parsing and serializing\nconst parsed = ssri.parse(integrity)\nssri.stringify(parsed) // === integrity (works on non-Integrity objects)\nparsed.toString() // === integrity\n\n// Async stream functions\nssri.checkStream(fs.createReadStream('./my-file'), integrity).then(...)\nssri.fromStream(fs.createReadStream('./my-file')).then(sri => {\n sri.toString() === integrity\n})\nfs.createReadStream('./my-file').pipe(ssri.createCheckerStream(sri))\n\n// Sync data functions\nssri.fromData(fs.readFileSync('./my-file')) // === parsed\nssri.checkData(fs.readFileSync('./my-file'), integrity) // => 'sha512'\n```\n\n### Features\n\n* Parses and stringifies SRI strings.\n* Generates SRI strings from raw data or Streams.\n* Strict standard compliance.\n* `?foo` metadata option support.\n* Multiple entries for the same algorithm.\n* Object-based integrity hash manipulation.\n* Small footprint: no dependencies, concise implementation.\n* Full test coverage.\n* Customizable algorithm picker.\n\n### Contributing\n\nThe ssri team enthusiastically welcomes contributions and project participation!\nThere's a bunch of things you can do if you want to contribute! The [Contributor\nGuide](CONTRIBUTING.md) has all the information you need for everything from\nreporting bugs to contributing entire new features. Please don't hesitate to\njump in if you'd like to, or even ask us questions if something isn't clear.\n\n### API\n\n#### <a name=\"parse\"></a> `> ssri.parse(sri, [opts]) -> Integrity`\n\nParses `sri` into an `Integrity` data structure. `sri` can be an integrity\nstring, an `Hash`-like with `digest` and `algorithm` fields and an optional\n`options` field, or an `Integrity`-like object. The resulting object will be an\n`Integrity` instance that has this shape:\n\n```javascript\n{\n 'sha1': [{algorithm: 'sha1', digest: 'deadbeef', options: []}],\n 'sha512': [\n {algorithm: 'sha512', digest: 'c0ffee', options: []},\n {algorithm: 'sha512', digest: 'bad1dea', options: ['foo']}\n ],\n}\n```\n\nIf `opts.single` is truthy, a single `Hash` object will be returned. That is, a\nsingle object that looks like `{algorithm, digest, options}`, as opposed to a\nlarger object with multiple of these.\n\nIf `opts.strict` is truthy, the resulting object will be filtered such that\nit strictly follows the Subresource Integrity spec, throwing away any entries\nwith any invalid components. This also means a restricted set of algorithms\nwill be used -- the spec limits them to `sha256`, `sha384`, and `sha512`.\n\nStrict mode is recommended if the integrity strings are intended for use in\nbrowsers, or in other situations where strict adherence to the spec is needed.\n\n##### Example\n\n```javascript\nssri.parse('sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo') // -> Integrity object\n```\n\n#### <a name=\"stringify\"></a> `> ssri.stringify(sri, [opts]) -> String`\n\nThis function is identical to [`Integrity#toString()`](#integrity-to-string),\nexcept it can be used on _any_ object that [`parse`](#parse) can handle -- that\nis, a string, an `Hash`-like, or an `Integrity`-like.\n\nThe `opts.sep` option defines the string to use when joining multiple entries\ntogether. To be spec-compliant, this _must_ be whitespace. The default is a\nsingle space (`' '`).\n\nIf `opts.strict` is true, the integrity string will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\n// Useful for cleaning up input SRI strings:\nssri.stringify('\\n\\rsha512-foo\\n\\t\\tsha384-bar')\n// -> 'sha512-foo sha384-bar'\n\n// Hash-like: only a single entry.\nssri.stringify({\n algorithm: 'sha512',\n digest:'9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==',\n options: ['foo']\n})\n// ->\n// 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'\n\n// Integrity-like: full multi-entry syntax. Similar to output of `ssri.parse`\nssri.stringify({\n 'sha512': [\n {\n algorithm: 'sha512',\n digest:'9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==',\n options: ['foo']\n }\n ]\n})\n// ->\n// 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'\n```\n\n#### <a name=\"integrity-concat\"></a> `> Integrity#concat(otherIntegrity, [opts]) -> Integrity`\n\nConcatenates an `Integrity` object with another IntegrityLike, or an integrity\nstring.\n\nThis is functionally equivalent to concatenating the string format of both\nintegrity arguments, and calling [`ssri.parse`](#ssri-parse) on the new string.\n\nIf `opts.strict` is true, the new `Integrity` will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\n// This will combine the integrity checks for two different versions of\n// your index.js file so you can use a single integrity string and serve\n// either of these to clients, from a single `<script>` tag.\nconst desktopIntegrity = ssri.fromData(fs.readFileSync('./index.desktop.js'))\nconst mobileIntegrity = ssri.fromData(fs.readFileSync('./index.mobile.js'))\n\n// Note that browsers (and ssri) will succeed as long as ONE of the entries\n// for the *prioritized* algorithm succeeds. That is, in order for this fallback\n// to work, both desktop and mobile *must* use the same `algorithm` values.\ndesktopIntegrity.concat(mobileIntegrity)\n```\n\n#### <a name=\"integrity-to-string\"></a> `> Integrity#toString([opts]) -> String`\n\nReturns the string representation of an `Integrity` object. All hash entries\nwill be concatenated in the string by `opts.sep`, which defaults to `' '`.\n\nIf you want to serialize an object that didn't come from an `ssri` function,\nuse [`ssri.stringify()`](#stringify).\n\nIf `opts.strict` is true, the integrity string will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\nconst integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo'\n\nssri.parse(integrity).toString() === integrity\n```\n\n#### <a name=\"integrity-to-json\"></a> `> Integrity#toJSON() -> String`\n\nReturns the string representation of an `Integrity` object. All hash entries\nwill be concatenated in the string by `' '`.\n\nThis is a convenience method so you can pass an `Integrity` object directly to `JSON.stringify`.\nFor more info check out [toJSON() behavior on mdn](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#toJSON%28%29_behavior).\n\n##### Example\n\n```javascript\nconst integrity = '\"sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A==?foo\"'\n\nJSON.stringify(ssri.parse(integrity)) === integrity\n```\n\n#### <a name=\"integrity-match\"></a> `> Integrity#match(sri, [opts]) -> Hash | false`\n\nReturns the matching (truthy) hash if `Integrity` matches the argument passed as\n`sri`, which can be anything that [`parse`](#parse) will accept. `opts` will be\npassed through to `parse` and [`pickAlgorithm()`](#integrity-pick-algorithm).\n\n##### Example\n\n```javascript\nconst integrity = 'sha512-9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A=='\n\nssri.parse(integrity).match(integrity)\n// Hash {\n// digest: '9KhgCRIx/AmzC8xqYJTZRrnO8OW2Pxyl2DIMZSBOr0oDvtEFyht3xpp71j/r/pAe1DM+JI/A+line3jUBgzQ7A=='\n// algorithm: 'sha512'\n// }\n\nssri.parse(integrity).match('sha1-deadbeef')\n// false\n```\n\n#### <a name=\"integrity-pick-algorithm\"></a> `> Integrity#pickAlgorithm([opts]) -> String`\n\nReturns the \"best\" algorithm from those available in the integrity object.\n\nIf `opts.pickAlgorithm` is provided, it will be passed two algorithms as\narguments. ssri will prioritize whichever of the two algorithms is returned by\nthis function. Note that the function may be called multiple times, and it\n**must** return one of the two algorithms provided. By default, ssri will make\na best-effort to pick the strongest/most reliable of the given algorithms. It\nmay intentionally deprioritize algorithms with known vulnerabilities.\n\n##### Example\n\n```javascript\nssri.parse('sha1-WEakDigEST sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1').pickAlgorithm() // sha512\n```\n\n#### <a name=\"integrity-hex-digest\"></a> `> Integrity#hexDigest() -> String`\n\n`Integrity` is assumed to be either a single-hash `Integrity` instance, or a\n`Hash` instance. Returns its `digest`, converted to a hex representation of the\nbase64 data.\n\n##### Example\n\n```javascript\nssri.parse('sha1-deadbeef').hexDigest() // '75e69d6de79f'\n```\n\n#### <a name=\"from-hex\"></a> `> ssri.fromHex(hexDigest, algorithm, [opts]) -> Integrity`\n\nCreates an `Integrity` object with a single entry, based on a hex-formatted\nhash. This is a utility function to help convert existing shasums to the\nIntegrity format, and is roughly equivalent to something like:\n\n```javascript\nalgorithm + '-' + Buffer.from(hexDigest, 'hex').toString('base64')\n```\n\n`opts.options` may optionally be passed in: it must be an array of option\nstrings that will be added to all generated integrity hashes generated by\n`fromData`. This is a loosely-specified feature of SRIs, and currently has no\nspecified semantics besides being `?`-separated. Use at your own risk, and\nprobably avoid if your integrity strings are meant to be used with browsers.\n\nIf `opts.strict` is true, the integrity object will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\nIf `opts.single` is true, a single `Hash` object will be returned.\n\n##### Example\n\n```javascript\nssri.fromHex('75e69d6de79f', 'sha1').toString() // 'sha1-deadbeef'\n```\n\n#### <a name=\"from-data\"></a> `> ssri.fromData(data, [opts]) -> Integrity`\n\nCreates an `Integrity` object from either string or `Buffer` data, calculating\nall the requested hashes and adding any specified options to the object.\n\n`opts.algorithms` determines which algorithms to generate hashes for. All\nresults will be included in a single `Integrity` object. The default value for\n`opts.algorithms` is `['sha512']`. All algorithm strings must be hashes listed\nin `crypto.getHashes()` for the host Node.js platform.\n\n`opts.options` may optionally be passed in: it must be an array of option\nstrings that will be added to all generated integrity hashes generated by\n`fromData`. This is a loosely-specified feature of SRIs, and currently has no\nspecified semantics besides being `?`-separated. Use at your own risk, and\nprobably avoid if your integrity strings are meant to be used with browsers.\n\nIf `opts.strict` is true, the integrity object will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\nconst integrityObj = ssri.fromData('foobarbaz', {\n algorithms: ['sha256', 'sha384', 'sha512']\n})\nintegrity.toString('\\n')\n// ->\n// sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0=\n// sha384-irnCxQ0CfQhYGlVAUdwTPC9bF3+YWLxlaDGM4xbYminxpbXEq+D+2GCEBTxcjES9\n// sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1+9vBnypkYWg==\n```\n\n#### <a name=\"from-stream\"></a> `> ssri.fromStream(stream, [opts]) -> Promise<Integrity>`\n\nReturns a Promise of an Integrity object calculated by reading data from\na given `stream`.\n\nIt accepts both `opts.algorithms` and `opts.options`, which are documented as\npart of [`ssri.fromData`](#from-data).\n\nAdditionally, `opts.Promise` may be passed in to inject a Promise library of\nchoice. By default, ssri will use Node's built-in Promises.\n\nIf `opts.strict` is true, the integrity object will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\nssri.fromStream(fs.createReadStream('index.js'), {\n algorithms: ['sha1', 'sha512']\n}).then(integrity => {\n return ssri.checkStream(fs.createReadStream('index.js'), integrity)\n}) // succeeds\n```\n\n#### <a name=\"create\"></a> `> ssri.create([opts]) -> <Hash>`\n\nReturns a Hash object with `update(<Buffer or string>[,enc])` and `digest()` methods.\n\nThe Hash object provides the same methods as [crypto class Hash](https://nodejs.org/dist/latest-v6.x/docs/api/crypto.html#crypto_class_hash).\n`digest()` accepts no arguments and returns an Integrity object calculated by reading data from\ncalls to update.\n\nIt accepts both `opts.algorithms` and `opts.options`, which are documented as\npart of [`ssri.fromData`](#from-data).\n\nIf `opts.strict` is true, the integrity object will be created using strict\nparsing rules. See [`ssri.parse`](#parse).\n\n##### Example\n\n```javascript\nconst integrity = ssri.create().update('foobarbaz').digest()\nintegrity.toString()\n// ->\n// sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1+9vBnypkYWg==\n```\n\n#### <a name=\"check-data\"></a> `> ssri.checkData(data, sri, [opts]) -> Hash|false`\n\nVerifies `data` integrity against an `sri` argument. `data` may be either a\n`String` or a `Buffer`, and `sri` can be any subresource integrity\nrepresentation that [`ssri.parse`](#parse) can handle.\n\nIf verification succeeds, `checkData` will return the name of the algorithm that\nwas used for verification (a truthy value). Otherwise, it will return `false`.\n\nIf `opts.pickAlgorithm` is provided, it will be used by\n[`Integrity#pickAlgorithm`](#integrity-pick-algorithm) when deciding which of\nthe available digests to match against.\n\nIf `opts.error` is true, and verification fails, `checkData` will throw either\nan `EBADSIZE` or an `EINTEGRITY` error, instead of just returning false.\n\n##### Example\n\n```javascript\nconst data = fs.readFileSync('index.js')\nssri.checkData(data, ssri.fromData(data)) // -> 'sha512'\nssri.checkData(data, 'sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0')\nssri.checkData(data, 'sha1-BaDDigEST') // -> false\nssri.checkData(data, 'sha1-BaDDigEST', {error: true}) // -> Error! EINTEGRITY\n```\n\n#### <a name=\"check-stream\"></a> `> ssri.checkStream(stream, sri, [opts]) -> Promise<Hash>`\n\nVerifies the contents of `stream` against an `sri` argument. `stream` will be\nconsumed in its entirety by this process. `sri` can be any subresource integrity\nrepresentation that [`ssri.parse`](#parse) can handle.\n\n`checkStream` will return a Promise that either resolves to the\n`Hash` that succeeded verification, or, if the verification fails\nor an error happens with `stream`, the Promise will be rejected.\n\nIf the Promise is rejected because verification failed, the returned error will\nhave `err.code` as `EINTEGRITY`.\n\nIf `opts.size` is given, it will be matched against the stream size. An error\nwith `err.code` `EBADSIZE` will be returned by a rejection if the expected size\nand actual size fail to match.\n\nIf `opts.pickAlgorithm` is provided, it will be used by\n[`Integrity#pickAlgorithm`](#integrity-pick-algorithm) when deciding which of\nthe available digests to match against.\n\n##### Example\n\n```javascript\nconst integrity = ssri.fromData(fs.readFileSync('index.js'))\n\nssri.checkStream(\n fs.createReadStream('index.js'),\n integrity\n)\n// ->\n// Promise<{\n// algorithm: 'sha512',\n// digest: 'sha512-yzd8ELD1piyANiWnmdnpCL5F52f10UfUdEkHywVZeqTt0ymgrxR63Qz0GB7TKPoeeZQmWCaz7T1'\n// }>\n\nssri.checkStream(\n fs.createReadStream('index.js'),\n 'sha256-l981iLWj8kurw4UbNy8Lpxqdzd7UOxS50Glhv8FwfZ0'\n) // -> Promise<Hash>\n\nssri.checkStream(\n fs.createReadStream('index.js'),\n 'sha1-BaDDigEST'\n) // -> Promise<Error<{code: 'EINTEGRITY'}>>\n```\n\n#### <a name=\"integrity-stream\"></a> `> integrityStream([opts]) -> IntegrityStream`\n\nReturns a `Transform` stream that data can be piped through in order to generate\nand optionally check data integrity for piped data. When the stream completes\nsuccessfully, it emits `size` and `integrity` events, containing the total\nnumber of bytes processed and a calculated `Integrity` instance based on stream\ndata, respectively.\n\nIf `opts.algorithms` is passed in, the listed algorithms will be calculated when\ngenerating the final `Integrity` instance. The default is `['sha512']`.\n\nIf `opts.single` is passed in, a single `Hash` instance will be returned.\n\nIf `opts.integrity` is passed in, it should be an `integrity` value understood\nby [`parse`](#parse) that the stream will check the data against. If\nverification succeeds, the integrity stream will emit a `verified` event whose\nvalue is a single `Hash` object that is the one that succeeded verification. If\nverification fails, the stream will error with an `EINTEGRITY` error code.\n\nIf `opts.size` is given, it will be matched against the stream size. An error\nwith `err.code` `EBADSIZE` will be emitted by the stream if the expected size\nand actual size fail to match.\n\nIf `opts.pickAlgorithm` is provided, it will be passed two algorithms as\narguments. ssri will prioritize whichever of the two algorithms is returned by\nthis function. Note that the function may be called multiple times, and it\n**must** return one of the two algorithms provided. By default, ssri will make\na best-effort to pick the strongest/most reliable of the given algorithms. It\nmay intentionally deprioritize algorithms with known vulnerabilities.\n\n##### Example\n\n```javascript\nconst integrity = ssri.fromData(fs.readFileSync('index.js'))\nfs.createReadStream('index.js')\n.pipe(ssri.integrityStream({integrity}))\n```\nWelcome to the LibSass documentation!\n\n## First Off\nLibSass is just a library. To run the code locally (i.e. to compile your stylesheets), you need an implementer. SassC (get it?) is an implementer written in C. There are a number of other implementations of LibSass - for example Node. We encourage you to write your own port - the whole point of LibSass is that we want to bring Sass to many other languages, not just Ruby!\n\nWe're working hard on moving to full parity with Ruby Sass... learn more at the [The-LibSass-Compatibility-Plan](compatibility-plan.md)!\n\n### Implementing LibSass\n\nIf you're interested in implementing LibSass in your own project see the [API Documentation](api-doc.md) which now includes implementing\nyour own [Sass functions](api-function.md). You may wish to [look at other implementations](implementations.md) for your language of choice.\nOr make your own!\n\n### Contributing to LibSass\n\n| Issue Tracker | Issue Triage | Community Guidelines |\n|-------------------|----------------------------------|-----------------------------|\n| We're always needing help, so check out our issue tracker, help some people out, and read our article on [Contributing](contributing.md)! It's got all the details on what to do! | To help understand the process of triaging bugs, have a look at our [Issue-Triage](triage.md) document. | Oh, and don't forget we always follow [[Sass Community Guidelines|http://sass-lang.com/community-guidelines]]. Be nice and everyone else will be nice too! |\n\nPlease refer to the steps on [Building LibSass](build.md)\n# fast-levenshtein - Levenshtein algorithm in Javascript\n\n[](http://travis-ci.org/hiddentao/fast-levenshtein)\n[](https://badge.fury.io/js/fast-levenshtein)\n[](https://www.npmjs.com/package/fast-levenshtein)\n[](https://twitter.com/hiddentao)\n\nAn efficient Javascript implementation of the [Levenshtein algorithm](http://en.wikipedia.org/wiki/Levenshtein_distance) with locale-specific collator support.\n\n## Features\n\n* Works in node.js and in the browser.\n* Better performance than other implementations by not needing to store the whole matrix ([more info](http://www.codeproject.com/Articles/13525/Fast-memory-efficient-Levenshtein-algorithm)).\n* Locale-sensitive string comparisions if needed.\n* Comprehensive test suite and performance benchmark.\n* Small: <1 KB minified and gzipped\n\n## Installation\n\n### node.js\n\nInstall using [npm](http://npmjs.org/):\n\n```bash\n$ npm install fast-levenshtein\n```\n\n### Browser\n\nUsing bower:\n\n```bash\n$ bower install fast-levenshtein\n```\n\nIf you are not using any module loader system then the API will then be accessible via the `window.Levenshtein` object.\n\n## Examples\n\n**Default usage**\n\n```javascript\nvar levenshtein = require('fast-levenshtein');\n\nvar distance = levenshtein.get('back', 'book'); // 2\nvar distance = levenshtein.get('我愛你', '我叫你'); // 1\n```\n\n**Locale-sensitive string comparisons**\n\nIt supports using [Intl.Collator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator) for locale-sensitive string comparisons:\n\n```javascript\nvar levenshtein = require('fast-levenshtein');\n\nlevenshtein.get('mikailovitch', 'Mikhaïlovitch', { useCollator: true});\n// 1\n```\n\n## Building and Testing\n\nTo build the code and run the tests:\n\n```bash\n$ npm install -g grunt-cli\n$ npm install\n$ npm run build\n```\n\n## Performance\n\n_Thanks to [Titus Wormer](https://github.com/wooorm) for [encouraging me](https://github.com/hiddentao/fast-levenshtein/issues/1) to do this._\n\nBenchmarked against other node.js levenshtein distance modules (on Macbook Air 2012, Core i7, 8GB RAM):\n\n```bash\nRunning suite Implementation comparison [benchmark/speed.js]...\n>> levenshtein-edit-distance x 234 ops/sec ±3.02% (73 runs sampled)\n>> levenshtein-component x 422 ops/sec ±4.38% (83 runs sampled)\n>> levenshtein-deltas x 283 ops/sec ±3.83% (78 runs sampled)\n>> natural x 255 ops/sec ±0.76% (88 runs sampled)\n>> levenshtein x 180 ops/sec ±3.55% (86 runs sampled)\n>> fast-levenshtein x 1,792 ops/sec ±2.72% (95 runs sampled)\nBenchmark done.\nFastest test is fast-levenshtein at 4.2x faster than levenshtein-component\n```\n\nYou can run this benchmark yourself by doing:\n\n```bash\n$ npm install\n$ npm run build\n$ npm run benchmark\n```\n\n## Contributing\n\nIf you wish to submit a pull request please update and/or create new tests for any changes you make and ensure the grunt build passes.\n\nSee [CONTRIBUTING.md](https://github.com/hiddentao/fast-levenshtein/blob/master/CONTRIBUTING.md) for details.\n\n## License\n\nMIT - see [LICENSE.md](https://github.com/hiddentao/fast-levenshtein/blob/master/LICENSE.md)\nThese files are compiled dot templates from dot folder.\n\nDo NOT edit them directly, edit the templates and run `npm run build` from main ajv folder.\n# fragment-cache [](https://www.npmjs.com/package/fragment-cache) [](https://npmjs.org/package/fragment-cache) [](https://travis-ci.org/jonschlinkert/fragment-cache)\n\n> A cache for managing namespaced sub-caches\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save fragment-cache\n```\n\n## Usage\n\n```js\nvar Fragment = require('fragment-cache');\nvar fragment = new Fragment();\n```\n\n## API\n\n### [FragmentCache](index.js#L24)\n\nCreate a new `FragmentCache` with an optional object to use for `caches`.\n\n**Example**\n\n```js\nvar fragment = new FragmentCache();\n```\n\n**Params**\n\n* `cacheName` **{String}**\n* `returns` **{Object}**: Returns the [map-cache](https://github.com/jonschlinkert/map-cache) instance.\n\n### [.cache](index.js#L49)\n\nGet cache `name` from the `fragment.caches` object. Creates a new `MapCache` if it doesn't already exist.\n\n**Example**\n\n```js\nvar cache = fragment.cache('files');\nconsole.log(fragment.caches.hasOwnProperty('files'));\n//=> true\n```\n\n**Params**\n\n* `cacheName` **{String}**\n* `returns` **{Object}**: Returns the [map-cache](https://github.com/jonschlinkert/map-cache) instance.\n\n### [.set](index.js#L67)\n\nSet a value for property `key` on cache `name`\n\n**Example**\n\n```js\nfragment.set('files', 'somefile.js', new File({path: 'somefile.js'}));\n```\n\n**Params**\n\n* `name` **{String}**\n* `key` **{String}**: Property name to set\n* `val` **{any}**: The value of `key`\n* `returns` **{Object}**: The cache instance for chaining\n\n### [.has](index.js#L93)\n\nReturns true if a non-undefined value is set for `key` on fragment cache `name`.\n\n**Example**\n\n```js\nvar cache = fragment.cache('files');\ncache.set('somefile.js');\n\nconsole.log(cache.has('somefile.js'));\n//=> true\n\nconsole.log(cache.has('some-other-file.js'));\n//=> false\n```\n\n**Params**\n\n* `name` **{String}**: Cache name\n* `key` **{String}**: Optionally specify a property to check for on cache `name`\n* `returns` **{Boolean}**\n\n### [.get](index.js#L115)\n\nGet `name`, or if specified, the value of `key`. Invokes the [cache](#cache) method, so that cache `name` will be created it doesn't already exist. If `key` is not passed, the entire cache (`name`) is returned.\n\n**Example**\n\n```js\nvar Vinyl = require('vinyl');\nvar cache = fragment.cache('files');\ncache.set('somefile.js', new Vinyl({path: 'somefile.js'}));\nconsole.log(cache.get('somefile.js'));\n//=> <File \"somefile.js\">\n```\n\n**Params**\n\n* `name` **{String}**\n* `returns` **{Object}**: Returns cache `name`, or the value of `key` if specified\n\n## About\n\n### Related projects\n\n* [base](https://www.npmjs.com/package/base): base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/node-base/base) | [homepage](https://github.com/node-base/base \"base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [map-cache](https://www.npmjs.com/package/map-cache): Basic cache object for storing key-value pairs. | [homepage](https://github.com/jonschlinkert/map-cache \"Basic cache object for storing key-value pairs.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/fragment-cache/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 17, 2016._\n# Array Flatten\n\n[![NPM version][npm-image]][npm-url]\n[![NPM downloads][downloads-image]][downloads-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n\n> Flatten nested arrays.\n\n## Installation\n\n```\nnpm install array-flatten --save\n```\n\n## Usage\n\n```javascript\nvar flatten = require('array-flatten')\n\nflatten([1, [2, [3, [4, [5], 6], 7], 8], 9])\n//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]\n\nflatten.depth([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)\n//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]\n\n(function () {\n flatten.from(arguments) //=> [1, 2, 3]\n})(1, [2, 3])\n```\n\n### Methods\n\n* **flatten(array)** Flatten a nested array structure\n* **flatten.from(arrayish)** Flatten an array-like structure (E.g. arguments)\n* **flatten.depth(array, depth)** Flatten a nested array structure with a specific depth\n* **flatten.fromDepth(arrayish, depth)** Flatten an array-like structure with a specific depth\n\n## License\n\nMIT\n\n[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat\n[npm-url]: https://npmjs.org/package/array-flatten\n[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat\n[downloads-url]: https://npmjs.org/package/array-flatten\n[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat\n[travis-url]: https://travis-ci.org/blakeembrey/array-flatten\n[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat\n[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master\n# Extension pipelining\n\n`websocket-extensions` models the extension negotiation and processing pipeline\nof the WebSocket protocol. Between the driver parsing messages from the TCP\nstream and handing those messages off to the application, there may exist a\nstack of extensions that transform the message somehow.\n\nIn the parlance of this framework, a *session* refers to a single instance of an\nextension, acting on a particular socket on either the server or the client\nside. A session may transform messages both incoming to the application and\noutgoing from the application, for example the `permessage-deflate` extension\ncompresses outgoing messages and decompresses incoming messages. Message streams\nin either direction are independent; that is, incoming and outgoing messages\ncannot be assumed to 'pair up' as in a request-response protocol.\n\nAsynchronous processing of messages poses a number of problems that this\npipeline construction is intended to solve.\n\n## Overview\n\nLogically, we have the following:\n\n +-------------+ out +---+ +---+ +---+ +--------+\n | |------>| |---->| |---->| |------>| |\n | Application | | A | | B | | C | | Driver |\n | |<------| |<----| |<----| |<------| |\n +-------------+ in +---+ +---+ +---+ +--------+\n\n \\ /\n +----------o----------+\n |\n sessions\n\nFor outgoing messages, the driver receives the result of\n\n C.outgoing(B.outgoing(A.outgoing(message)))\n\n or, [A, B, C].reduce(((m, ext) => ext.outgoing(m)), message)\n\nFor incoming messages, the application receives the result of\n\n A.incoming(B.incoming(C.incoming(message)))\n\n or, [C, B, A].reduce(((m, ext) => ext.incoming(m)), message)\n\nA session is of the following type, to borrow notation from pseudo-Haskell:\n\n type Session = {\n incoming :: Message -> Message\n outgoing :: Message -> Message\n close :: () -> ()\n }\n\n(That `() -> ()` syntax is intended to mean that `close()` is a nullary void\nmethod; I apologise to any Haskell readers for not using the right monad.)\n\nThe `incoming()` and `outgoing()` methods perform message transformation in the\nrespective directions; `close()` is called when a socket closes so the session\ncan release any resources it's holding, for example a DEFLATE de/compression\ncontext.\n\nHowever because this is JavaScript, the `incoming()` and `outgoing()` methods\nmay be asynchronous (indeed, `permessage-deflate` is based on `zlib`, whose API\nis stream-based). So their interface is strictly:\n\n type Session = {\n incoming :: Message -> Callback -> ()\n outgoing :: Message -> Callback -> ()\n close :: () -> ()\n }\n\n type Callback = Either Error Message -> ()\n\nThis means a message *m2* can be pushed into a session while it's still\nprocessing the preceding message *m1*. The messages can be processed\nconcurrently but they *must* be given to the next session in line (or to the\napplication) in the same order they came in. Applications will expect to receive\nmessages in the order they arrived over the wire, and sessions require this too.\nSo ordering of messages must be preserved throughout the pipeline.\n\nConsider the following highly simplified extension that deflates messages on the\nwire. `message` is a value conforming the type:\n\n type Message = {\n rsv1 :: Boolean\n rsv2 :: Boolean\n rsv3 :: Boolean\n opcode :: Number\n data :: Buffer\n }\n\nHere's the extension:\n\n```js\nvar zlib = require('zlib');\n\nvar deflate = {\n outgoing: function(message, callback) {\n zlib.deflateRaw(message.data, function(error, result) {\n message.rsv1 = true;\n message.data = result;\n callback(error, message);\n });\n },\n\n incoming: function(message, callback) {\n // decompress inbound messages (elided)\n },\n\n close: function() {\n // no state to clean up\n }\n};\n```\n\nWe can call it with a large message followed by a small one, and the small one\nwill be returned first:\n\n```js\nvar crypto = require('crypto'),\n large = crypto.randomBytes(1 << 14),\n small = new Buffer('hi');\n\ndeflate.outgoing({data: large}, function() {\n console.log(1, 'large');\n});\n\ndeflate.outgoing({data: small}, function() {\n console.log(2, 'small');\n});\n\n/* prints: 2 'small'\n 1 'large' */\n```\n\nSo a session that processes messages asynchronously may fail to preserve message\nordering.\n\nNow, this extension is stateless, so it can process messages in any order and\nstill produce the same output. But some extensions are stateful and require\nmessage order to be preserved.\n\nFor example, when using `permessage-deflate` without `no_context_takeover` set,\nthe session retains a DEFLATE de/compression context between messages, which\naccumulates state as it consumes data (later messages can refer to sections of\nprevious ones to improve compression). Reordering parts of the DEFLATE stream\nwill result in a failed decompression. Messages must be decompressed in the same\norder they were compressed by the peer in order for the DEFLATE protocol to\nwork.\n\nFinally, there is the problem of closing a socket. When a WebSocket is closed by\nthe application, or receives a closing request from the other peer, there may be\nmessages outgoing from the application and incoming from the peer in the\npipeline. If we close the socket and pipeline immediately, two problems arise:\n\n* We may send our own closing frame to the peer before all prior messages we\n sent have been written to the socket, and before we have finished processing\n all prior messages from the peer\n* The session may be instructed to close its resources (e.g. its de/compression\n context) while it's in the middle of processing a message, or before it has\n received messages that are upstream of it in the pipeline\n\nEssentially, we must defer closing the sessions and sending a closing frame\nuntil after all prior messages have exited the pipeline.\n\n## Design goals\n\n* Message order must be preserved between the protocol driver, the extension\n sessions, and the application\n* Messages should be handed off to sessions and endpoints as soon as possible,\n to maximise throughput of stateless sessions\n* The closing procedure should block any further messages from entering the\n pipeline, and should allow all existing messages to drain\n* Sessions should be closed as soon as possible to prevent them holding memory\n and other resources when they have no more messages to handle\n* The closing API should allow the caller to detect when the pipeline is empty\n and it is safe to continue the WebSocket closing procedure\n* Individual extensions should remain as simple as possible to facilitate\n modularity and independent authorship\n\nThe final point about modularity is an important one: this framework is designed\nto facilitate extensions existing as plugins, by decoupling the protocol driver,\nextensions, and application. In an ideal world, plugins should only need to\ncontain code for their specific functionality, and not solve these problems that\napply to all sessions. Also, solving some of these problems requires\nconsideration of all active sessions collectively, which an individual session\nis incapable of doing.\n\nFor example, it is entirely possible to take the simple `deflate` extension\nabove and wrap its `incoming()` and `outgoing()` methods in two `Transform`\nstreams, producing this type:\n\n type Session = {\n incoming :: TransformStream\n outtoing :: TransformStream\n close :: () -> ()\n }\n\nThe `Transform` class makes it easy to wrap an async function such that message\norder is preserved:\n\n```js\nvar stream = require('stream'),\n session = new stream.Transform({objectMode: true});\n\nsession._transform = function(message, _, callback) {\n var self = this;\n deflate.outgoing(message, function(error, result) {\n self.push(result);\n callback();\n });\n};\n```\n\nHowever, this has a negative impact on throughput: it works by deferring\n`callback()` until the async function has 'returned', which blocks `Transform`\nfrom passing further input into the `_transform()` method until the current\nmessage is dealt with completely. This would prevent sessions from processing\nmessages concurrently, and would unnecessarily reduce the throughput of\nstateless extensions.\n\nSo, input should be handed off to sessions as soon as possible, and all we need\nis a mechanism to reorder the output so that message order is preserved for the\nnext session in line.\n\n## Solution\n\nWe now describe the model implemented here and how it meets the above design\ngoals. The above diagram where a stack of extensions sit between the driver and\napplication describes the data flow, but not the object graph. That looks like\nthis:\n\n +--------+\n | Driver |\n +---o----+\n |\n V\n +------------+ +----------+\n | Extensions o----->| Pipeline |\n +------------+ +-----o----+\n |\n +---------------+---------------+\n | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n\nA driver using this framework holds an instance of the `Extensions` class, which\nit uses to register extension plugins, negotiate headers and transform messages.\nThe `Extensions` instance itself holds a `Pipeline`, which contains an array of\n`Cell` objects, each of which wraps one of the sessions.\n\n### Message processing\n\nBoth the `Pipeline` and `Cell` classes have `incoming()` and `outgoing()`\nmethods; the `Pipeline` interface pushes messages into the pipe, delegates the\nmessage to each `Cell` in turn, then returns it back to the driver. Outgoing\nmessages pass through `A` then `B` then `C`, and incoming messages in the\nreverse order.\n\nInternally, a `Cell` contains two `Functor` objects. A `Functor` wraps an async\nfunction and makes sure its output messages maintain the order of its input\nmessages. This name is due to [@fronx](https://github.com/fronx), on the basis\nthat, by preserving message order, the abstraction preserves the *mapping*\nbetween input and output messages. To use our simple `deflate` extension from\nabove:\n\n```js\nvar functor = new Functor(deflate, 'outgoing');\n\nfunctor.call({data: large}, function() {\n console.log(1, 'large');\n});\n\nfunctor.call({data: small}, function() {\n console.log(2, 'small');\n});\n\n/* -> 1 'large'\n 2 'small' */\n```\n\nA `Cell` contains two of these, one for each direction:\n\n +-----------------------+\n +---->| Functor [A, incoming] |\n +----------+ | +-----------------------+\n | Cell [A] o------+\n +----------+ | +-----------------------+\n +---->| Functor [A, outgoing] |\n +-----------------------+\n\nThis satisfies the message transformation requirements: the `Pipeline` simply\nloops over the cells in the appropriate direction to transform each message.\nBecause each `Cell` will preserve message order, we can pass a message to the\nnext `Cell` in line as soon as the current `Cell` returns it. This gives each\n`Cell` all the messages in order while maximising throughput.\n\n### Session closing\n\nWe want to close each session as soon as possible, after all existing messages\nhave drained. To do this, each `Cell` begins with a pending message counter in\neach direction, labelled `in` and `out` below.\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 0 out: 0 out: 0\n\nWhen a message *m1* enters the pipeline, say in the `outgoing` direction, we\nincrement the `pending.out` counter on all cells immediately.\n\n +----------+\n m1 => | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 1 out: 1 out: 1\n\n*m1* is handed off to `A`, meanwhile a second message `m2` arrives in the same\ndirection. All `pending.out` counters are again incremented.\n\n +----------+\n m2 => | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n m1 | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 2 out: 2 out: 2\n\nWhen the first cell's `A.outgoing` functor finishes processing *m1*, the first\n`pending.out` counter is decremented and *m1* is handed off to cell `B`.\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n m2 | m1 | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 1 out: 2 out: 2\n\nAs `B` finishes with *m1*, and as `A` finishes with *m2*, the `pending.out`\ncounters continue to decrement.\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | m2 | m1 |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 0 out: 1 out: 2\n\nSay `C` is a little slow, and begins processing *m2* while still processing\n*m1*. That's fine, the `Functor` mechanism will keep *m1* ahead of *m2* in the\noutput.\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | m2 | m1\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 0 out: 0 out: 2\n\nOnce all messages are dealt with, the counters return to `0`.\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 0 out: 0 out: 0\n\nThe same process applies in the `incoming` direction, the only difference being\nthat messages are passed to `C` first.\n\nThis makes closing the sessions quite simple. When the driver wants to close the\nsocket, it calls `Pipeline.close()`. This *immediately* calls `close()` on all\nthe cells. If a cell has `in == out == 0`, then it immediately calls\n`session.close()`. Otherwise, it stores the closing call and defers it until\n`in` and `out` have both ticked down to zero. The pipeline will not accept new\nmessages after `close()` has been called, so we know the pending counts will not\nincrease after this point.\n\nThis means each session is closed as soon as possible: `A` can close while the\nslow `C` session is still working, because it knows there are no more messages\non the way. Similarly, `C` will defer closing if `close()` is called while *m1*\nis still in `B`, and *m2* in `A`, because its pending count means it knows it\nhas work yet to do, even if it's not received those messages yet. This concern\ncannot be addressed by extensions acting only on their own local state, unless\nwe pollute individual extensions by making them all implement this same\nmechanism.\n\nThe actual closing API at each level is slightly different:\n\n type Session = {\n close :: () -> ()\n }\n\n type Cell = {\n close :: () -> Promise ()\n }\n\n type Pipeline = {\n close :: Callback -> ()\n }\n\nThis might appear inconsistent so it's worth explaining. Remember that a\n`Pipeline` holds a list of `Cell` objects, each wrapping a `Session`. The driver\ntalks (via the `Extensions` API) to the `Pipeline` interface, and it wants\n`Pipeline.close()` to do two things: close all the sessions, and tell me when\nit's safe to start the closing procedure (i.e. when all messages have drained\nfrom the pipe and been handed off to the application or socket). A callback API\nworks well for that.\n\nAt the other end of the stack, `Session.close()` is a nullary void method with\nno callback or promise API because we don't care what it does, and whatever it\ndoes do will not block the WebSocket protocol; we're not going to hold off\nprocessing messages while a session closes its de/compression context. We just\ntell it to close itself, and don't want to wait while it does that.\n\nIn the middle, `Cell.close()` returns a promise rather than using a callback.\nThis is for two reasons. First, `Cell.close()` might not do anything\nimmediately, it might have to defer its effect while messages drain. So, if\ngiven a callback, it would have to store it in a queue for later execution.\nCallbacks work fine if your method does something and can then invoke the\ncallback itself, but if you need to store callbacks somewhere so another method\ncan execute them, a promise is a better fit. Second, it better serves the\npurposes of `Pipeline.close()`: it wants to call `close()` on each of a list of\ncells, and wait for all of them to finish. This is simple and idiomatic using\npromises:\n\n```js\nvar closed = cells.map((cell) => cell.close());\nPromise.all(closed).then(callback);\n```\n\n(We don't actually use a full *Promises/A+* compatible promise here, we use a\nmuch simplified construction that acts as a callback aggregater and resolves\nsynchronously and does not support chaining, but the principle is the same.)\n\n### Error handling\n\nWe've not mentioned error handling so far but it bears some explanation. The\nabove counter system still applies, but behaves slightly differently in the\npresence of errors.\n\nSay we push three messages into the pipe in the outgoing direction:\n\n +----------+\n m3, m2, m1 => | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 3 out: 3 out: 3\n\nThey pass through the cells successfully up to this point:\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n m3 | m2 | m1 |\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 1 out: 2 out: 3\n\nAt this point, session `B` produces an error while processing *m2*, that is *m2*\nbecomes *e2*. *m1* is still in the pipeline, and *m3* is queued behind *m2*.\nWhat ought to happen is that *m1* is handed off to the socket, then *m2* is\nreleased to the driver, which will detect the error and begin closing the\nsocket. No further processing should be done on *m3* and it should not be\nreleased to the driver after the error is emitted.\n\nTo handle this, we allow errors to pass down the pipeline just like messages do,\nto maintain ordering. But, once a cell sees its session produce an error, or it\nreceives an error from upstream, it should refuse to accept any further\nmessages. Session `B` might have begun processing *m3* by the time it produces\nthe error *e2*, but `C` will have been given *e2* before it receives *m3*, and\ncan simply drop *m3*.\n\nNow, say *e2* reaches the slow session `C` while *m1* is still present,\nmeanwhile *m3* has been dropped. `C` will never receive *m3* since it will have\nbeen dropped upstream. Under the present model, its `out` counter will be `3`\nbut it is only going to emit two more values: *m1* and *e2*. In order for\nclosing to work, we need to decrement `out` to reflect this. The situation\nshould look like this:\n\n +----------+\n | Pipeline |\n +-----o----+\n |\n +---------------+---------------+\n | | e2 | m1\n +-----o----+ +-----o----+ +-----o----+\n | Cell [A] | | Cell [B] | | Cell [C] |\n +----------+ +----------+ +----------+\n in: 0 in: 0 in: 0\n out: 0 out: 0 out: 2\n\nWhen a cell sees its session emit an error, or when it receives an error from\nupstream, it sets its pending count in the appropriate direction to equal the\nnumber of messages it is *currently* processing. It will not accept any messages\nafter it sees the error, so this will allow the counter to reach zero.\n\nNote that while *e2* is in the pipeline, `Pipeline` should drop any further\nmessages in the outgoing direction, but should continue to accept incoming\nmessages. Until *e2* makes it out of the pipe to the driver, behind previous\nsuccessful messages, the driver does not know an error has happened, and a\nmessage may arrive over the socket and make it all the way through the incoming\npipe in the meantime. We only halt processing in the affected direction to avoid\ndoing unnecessary work since messages arriving after an error should not be\nprocessed.\n\nSome unnecessary work may happen, for example any messages already in the\npipeline following *m2* will be processed by `A`, since it's upstream of the\nerror. Those messages will be dropped by `B`.\n\n## Alternative ideas\n\nI am considering implementing `Functor` as an object-mode transform stream\nrather than what is essentially an async function. Being object-mode, a stream\nwould preserve message boundaries and would also possibly help address\nback-pressure. I'm not sure whether this would require external API changes so\nthat such streams could be connected to the downstream driver's streams.\n\n## Acknowledgements\n\nCredit is due to [@mnowster](https://github.com/mnowster) for helping with the\ndesign and to [@fronx](https://github.com/fronx) for helping name things.\n# hosted-git-info\n\nThis will let you identify and transform various git hosts URLs between\nprotocols. It also can tell you what the URL is for the raw path for\nparticular file for direct access without git.\n\n## Example\n\n```javascript\nvar hostedGitInfo = require(\"hosted-git-info\")\nvar info = hostedGitInfo.fromUrl(\"git@github.com:npm/hosted-git-info.git\", opts)\n/* info looks like:\n{\n type: \"github\",\n domain: \"github.com\",\n user: \"npm\",\n project: \"hosted-git-info\"\n}\n*/\n```\n\nIf the URL can't be matched with a git host, `null` will be returned. We\ncan match git, ssh and https urls. Additionally, we can match ssh connect\nstrings (`git@github.com:npm/hosted-git-info`) and shortcuts (eg,\n`github:npm/hosted-git-info`). Github specifically, is detected in the case\nof a third, unprefixed, form: `npm/hosted-git-info`.\n\nIf it does match, the returned object has properties of:\n\n* info.type -- The short name of the service\n* info.domain -- The domain for git protocol use\n* info.user -- The name of the user/org on the git host\n* info.project -- The name of the project on the git host\n\n## Version Contract\n\nThe major version will be bumped any time…\n\n* The constructor stops accepting URLs that it previously accepted.\n* A method is removed.\n* A method can no longer accept the number and type of arguments it previously accepted.\n* A method can return a different type than it currently returns.\n\nImplications:\n\n* I do not consider the specific format of the urls returned from, say\n `.https()` to be a part of the contract. The contract is that it will\n return a string that can be used to fetch the repo via HTTPS. But what\n that string looks like, specifically, can change.\n* Dropping support for a hosted git provider would constitute a breaking\n change.\n\n## Usage\n\n### var info = hostedGitInfo.fromUrl(gitSpecifier[, options])\n\n* *gitSpecifer* is a URL of a git repository or a SCP-style specifier of one.\n* *options* is an optional object. It can have the following properties:\n * *noCommittish* — If true then committishes won't be included in generated URLs.\n * *noGitPlus* — If true then `git+` won't be prefixed on URLs.\n\n## Methods\n\nAll of the methods take the same options as the `fromUrl` factory. Options\nprovided to a method override those provided to the constructor.\n\n* info.file(path, opts)\n\nGiven the path of a file relative to the repository, returns a URL for\ndirectly fetching it from the githost. If no committish was set then\n`master` will be used as the default.\n\nFor example `hostedGitInfo.fromUrl(\"git@github.com:npm/hosted-git-info.git#v1.0.0\").file(\"package.json\")`\nwould return `https://raw.githubusercontent.com/npm/hosted-git-info/v1.0.0/package.json`\n\n* info.shortcut(opts)\n\neg, `github:npm/hosted-git-info`\n\n* info.browse(path, fragment, opts)\n\neg, `https://github.com/npm/hosted-git-info/tree/v1.2.0`,\n`https://github.com/npm/hosted-git-info/tree/v1.2.0/package.json`,\n`https://github.com/npm/hosted-git-info/tree/v1.2.0/REAMDE.md#supported-hosts`\n\n* info.bugs(opts)\n\neg, `https://github.com/npm/hosted-git-info/issues`\n\n* info.docs(opts)\n\neg, `https://github.com/npm/hosted-git-info/tree/v1.2.0#readme`\n\n* info.https(opts)\n\neg, `git+https://github.com/npm/hosted-git-info.git`\n\n* info.sshurl(opts)\n\neg, `git+ssh://git@github.com/npm/hosted-git-info.git`\n\n* info.ssh(opts)\n\neg, `git@github.com:npm/hosted-git-info.git`\n\n* info.path(opts)\n\neg, `npm/hosted-git-info`\n\n* info.tarball(opts)\n\neg, `https://github.com/npm/hosted-git-info/archive/v1.2.0.tar.gz`\n\n* info.getDefaultRepresentation()\n\nReturns the default output type. The default output type is based on the\nstring you passed in to be parsed\n\n* info.toString(opts)\n\nUses the getDefaultRepresentation to call one of the other methods to get a URL for\nthis resource. As such `hostedGitInfo.fromUrl(url).toString()` will give\nyou a normalized version of the URL that still uses the same protocol.\n\nShortcuts will still be returned as shortcuts, but the special case github\nform of `org/project` will be normalized to `github:org/project`.\n\nSSH connect strings will be normalized into `git+ssh` URLs.\n\n## Supported hosts\n\nCurrently this supports Github, Bitbucket and Gitlab. Pull requests for\nadditional hosts welcome.\n# Browserslist [![Cult Of Martians][cult-img]][cult]\n\n<img width=\"120\" height=\"120\" alt=\"Browserslist logo by Anton Lovchikov\"\n src=\"https://browserslist.github.io/browserslist/logo.svg\" align=\"right\">\n\nThe config to share target browsers and Node.js versions between different\nfront-end tools. It is used in:\n\n* [Autoprefixer]\n* [Babel]\n* [postcss-preset-env]\n* [eslint-plugin-compat]\n* [stylelint-no-unsupported-browser-features]\n* [postcss-normalize]\n* [obsolete-webpack-plugin]\n\n[Browserslist Example] shows how every tool uses Browserslist.\nAll tools will find target browsers automatically,\nwhen you add the following to `package.json`:\n\n```json\n{\n \"browserslist\": [\n \"last 1 version\",\n \"> 1%\",\n \"maintained node versions\",\n \"not dead\"\n ]\n}\n```\n\nOr in `.browserslistrc` config:\n\n```yaml\n# Browsers that we support\n\nlast 1 version\n> 1%\nmaintained node versions\nnot dead\n```\n\nDevelopers set versions list in queries like `last 2 version`\nto be free from updating versions manually.\nBrowserslist will use [Can I Use] data for this queries.\n\nBrowserslist will take queries from tool option,\n`browserslist` config, `.browserslistrc` config,\n`browserslist` section in `package.json` or environment variables.\n\nYou can test Browserslist queries in [online demo].\n\n[cult-img]: https://cultofmartians.com/assets/badges/badge.svg\n[cult]: https://cultofmartians.com/done.html\n\n<a href=\"https://evilmartians.com/?utm_source=browserslist\">\n <img src=\"https://evilmartians.com/badges/sponsored-by-evil-martians.svg\"\n alt=\"Sponsored by Evil Martians\" width=\"236\" height=\"54\">\n</a>\n\n[stylelint-no-unsupported-browser-features]: https://github.com/ismay/stylelint-no-unsupported-browser-features\n[eslint-plugin-compat]: https://github.com/amilajack/eslint-plugin-compat\n[Browserslist Example]: https://github.com/browserslist/browserslist-example\n[postcss-preset-env]: https://github.com/jonathantneal/postcss-preset-env\n[postcss-normalize]: https://github.com/jonathantneal/postcss-normalize\n[Autoprefixer]: https://github.com/postcss/autoprefixer\n[online demo]: https://browserl.ist/\n[Can I Use]: https://caniuse.com/\n[Babel]: https://github.com/babel/babel/tree/master/packages/babel-preset-env\n[obsolete-webpack-plugin]: https://github.com/ElemeFE/obsolete-webpack-plugin\n\n## Tools\n\n* [`browserslist-ga`] downloads your website browsers statistics\n to use it in `> 0.5% in my stats` query.\n* [`browserslist-useragent`] checks browser by user agent string\n to match Browserslist target browsers query.\n* [`browserslist-useragent-ruby`] is a Ruby library to checks browser\n by user agent string to match Browserslist.\n* [`browserslist-useragent-regexp`] compiles Browserslist query to a RegExp\n to test browser useragent.\n* [`browserslist-browserstack`] runs BrowserStack tests for all browsers in Browserslist config.\n* [`caniuse-api`] returns browsers which support some specific feature.\n* Run `npx browserslist` in your project directory to see project’s\n target browsers. This CLI tool is built-in and available in any project\n with Autoprefixer.\n\n[`browserslist-useragent-ruby`]: https://github.com/browserslist/browserslist-useragent-ruby\n[`browserslist-useragent`]: https://github.com/pastelsky/browserslist-useragent\n[`browserslist-useragent-regexp`]: https://github.com/browserslist/browserslist-useragent-regexp\n[`browserslist-ga`]: https://github.com/browserslist/browserslist-ga\n[`caniuse-api`]: https://github.com/Nyalab/caniuse-api\n[`browserslist-browserstack`]: https://github.com/xeroxinteractive/browserslist-browserstack\n\n## Queries\n\nBrowserslist will use browsers and Node.js versions query\nfrom one of this sources:\n\n1. `browserslist` key in `package.json` file in current or parent directories.\n **We recommend this way.**\n2. Tool options. For example `browsers` option in Autoprefixer.\n3. `BROWSERSLIST` environment variable.\n4. `browserslist` config file in current or parent directories.\n5. `.browserslistrc` config file in current or parent directories.\n6. If the above methods did not produce a valid result\n Browserslist will use defaults:\n `> 0.5%, last 2 versions, Firefox ESR, not dead`.\n\n### Query Composition\n\nAn `or` combiner can use the keyword `or` as well as `,`.\n`last 1 version or > 1%` is equal to `last 1 version, > 1%`.\n\n`and` query combinations are also supported to perform an\nintersection of the previous query: `last 1 version and > 1%`.\n\nThere is 3 different ways to combine queries as depicted below. First you start\nwith a single query and then we combine the queries to get our final list.\n\nObviously you can *not* start with a `not` combiner, since the is no left-hand\nside query to combine it with.\n\n| Query combiner type | Illustration | Example |\n| ------------------- | :----------: | ------- |\n|`or`/ `,` combiner <br> (union) |  | `'> .5% or last 2 versions'` <br> `'> .5%, last 2 versions'` |\n| `and` combiner <br> (intersection) |  | `'> .5% and last 2 versions'` |\n| `not` combiner <br> (relative complement) |  | `'> .5% and not last 2 versions'` <br> `'> .5% or not last 2 versions'` <br> `'> .5%, not last 2 versions'` |\n\n_A quick way to test your query is to do `npx browserslist '> 0.5%, not IE 11'`\nin your terminal._\n\n### Best Practices\n\n* Select browsers directly (`last 2 Chrome versions`) only if you are making\n a web app for a kiosk with one browser. There are a lot of browsers\n on the market. If you are making general web app you should respect\n browsers diversity.\n* If you want to change the default set of browsers we recommend to combine\n `last 1 version`, `not dead` with `> 0.2%` (or `> 1% in US`,\n `> 1% in my stats`). `last n versions` adds too many dead browsers\n and does not add popular old versions. Choosing a percentage above `0.2%`\n will in the long run make popular browsers even more popular. We might run\n into a monopoly and stagnation situation, as we had with Internet Explorer 6.\n Please use this setting with caution.\n* Don’t remove browsers just because you don’t know them. Opera Mini has\n 100 million users in Africa and it is more popular in the global market\n than Microsoft Edge. Chinese QQ Browsers has more market share than Firefox\n and desktop Safari altogether.\n\n### Full List\n\nYou can specify the browser and Node.js versions by queries (case insensitive):\n\n* `> 5%`: browsers versions selected by global usage statistics.\n `>=`, `<` and `<=` work too.\n* `> 5% in US`: uses USA usage statistics. It accepts [two-letter country code].\n* `> 5% in alt-AS`: uses Asia region usage statistics. List of all region codes\n can be found at [`caniuse-lite/data/regions`].\n* `> 5% in my stats`: uses [custom usage data].\n* `cover 99.5%`: most popular browsers that provide coverage.\n* `cover 99.5% in US`: same as above, with [two-letter country code].\n* `cover 99.5% in my stats`: uses [custom usage data].\n* `maintained node versions`: all Node.js versions, which are [still maintained]\n by Node.js Foundation.\n* `node 10` and `node 10.4`: selects latest Node.js `10.x.x`\n or `10.4.x` release.\n* `current node`: Node.js version used by Browserslist right now.\n* `extends browserslist-config-mycompany`: take queries from\n `browserslist-config-mycompany` npm package.\n* `ie 6-8`: selects an inclusive range of versions.\n* `Firefox > 20`: versions of Firefox newer than 20.\n `>=`, `<` and `<=` work too. It also works with Node.js.\n* `iOS 7`: the iOS browser version 7 directly.\n* `Firefox ESR`: the latest [Firefox ESR] version.\n* `unreleased versions` or `unreleased Chrome versions`:\n alpha and beta versions.\n* `last 2 major versions` or `last 2 iOS major versions`:\n all minor/patch releases of last 2 major versions.\n* `since 2015` or `last 2 years`: all versions released since year 2015\n (also `since 2015-03` and `since 2015-03-10`).\n* `dead`: browsers from `last 2 version` query, but with less than 0.5%\n in global usage statistics and without official support or updates\n for 24 months. Right now it is `IE 10`, `IE_Mob 10`, `BlackBerry 10`,\n `BlackBerry 7`, and `OperaMobile 12.1`.\n* `last 2 versions`: the last 2 versions for *each* browser.\n* `last 2 Chrome versions`: the last 2 versions of Chrome browser.\n* `defaults`: Browserslist’s default browsers\n (`> 0.5%, last 2 versions, Firefox ESR, not dead`).\n* `not ie <= 8`: exclude browsers selected by previous queries.\n\nYou can add `not ` to any query.\n\n### Debug\n\nRun `npx browserslist` in project directory to see what browsers was selected\nby your queries.\n\n```sh\n$ npx browserslist\nand_chr 61\nand_ff 56\nand_qq 1.2\nand_uc 11.4\nandroid 56\nbaidu 7.12\nbb 10\nchrome 62\nedge 16\nfirefox 56\nios_saf 11\nopera 48\nsafari 11\nsamsung 5\n```\n\n### Notes\n\nBrowserslist works with separated versions of browsers.\nYou should avoid queries like `Firefox > 0`.\nThe list of the specified browsers acts as a white list which means other browsers are ignored.\n\nAll queries are based on the [Can I Use] support table,\ne.g. `last 3 iOS versions` might select `8.4, 9.2, 9.3` (mixed major and minor),\nwhereas `last 3 Chrome versions` might select `50, 49, 48` (major only).\n\n[`caniuse-lite/data/regions`]: https://github.com/ben-eb/caniuse-lite/tree/master/data/regions\n[two-letter country code]: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements\n[custom usage data]: #custom-usage-data\n[still maintained]: https://github.com/nodejs/Release\n[Can I Use]: https://caniuse.com/\n\n### Browsers\n\nNames are case insensitive:\n\n* `Android` for Android WebView.\n* `Baidu` for Baidu Browser.\n* `BlackBerry` or `bb` for Blackberry browser.\n* `Chrome` for Google Chrome.\n* `ChromeAndroid` or `and_chr` for Chrome for Android\n* `Edge` for Microsoft Edge.\n* `Electron` for Electron framework. It will be converted to Chrome version.\n* `Explorer` or `ie` for Internet Explorer.\n* `ExplorerMobile` or `ie_mob` for Internet Explorer Mobile.\n* `Firefox` or `ff` for Mozilla Firefox.\n* `FirefoxAndroid` or `and_ff` for Firefox for Android.\n* `iOS` or `ios_saf` for iOS Safari.\n* `Node` for Node.js.\n* `Opera` for Opera.\n* `OperaMini` or `op_mini` for Opera Mini.\n* `OperaMobile` or `op_mob` for Opera Mobile.\n* `QQAndroid` or `and_qq` for QQ Browser for Android.\n* `Safari` for desktop Safari.\n* `Samsung` for Samsung Internet.\n* `UCAndroid` or `and_uc` for UC Browser for Android.\n\n## `package.json`\n\nIf you want to reduce config files in project root, you can specify\nbrowsers in `package.json` with `browserslist` key:\n\n```json\n{\n \"private\": true,\n \"dependencies\": {\n \"autoprefixer\": \"^6.5.4\"\n },\n \"browserslist\": [\n \"last 1 version\",\n \"> 1%\",\n \"IE 10\"\n ]\n}\n```\n\n## Config File\n\nBrowserslist config should be named `.browserslistrc` or `browserslist`\nand have browsers queries split by a new line. Comments starts with `#` symbol:\n\n```yaml\n# Browsers that we support\n\nlast 1 version\n> 1%\nIE 10 # sorry\n```\n\nBrowserslist will check config in every directory in `path`.\nSo, if tool process `app/styles/main.css`, you can put config to root,\n`app/` or `app/styles`.\n\nYou can specify direct path in `BROWSERSLIST_CONFIG` environment variables.\n\n## Shareable Configs\n\nYou can use the following query to reference an exported Browserslist config\nfrom another package:\n\n```json\n \"browserslist\": [\n \"extends browserslist-config-mycompany\"\n ]\n```\n\nFor security reasons, external configuration only supports packages that have\nthe `browserslist-config-` prefix. npm scoped packages are also supported, by\nnaming or prefixing the module with `@scope/browserslist-config`, such as\n`@scope/browserslist-config` or `@scope/browserslist-config-mycompany`.\n\nIf you don’t accept Browserslist queries from users, you can disable the\nvalidation by using the `dangerousExtend` option:\n\n```js\nbrowserslist(queries, { path, dangerousExtend: true })\n```\n\nBecause this uses `npm`'s resolution, you can also reference specific files\nin a package:\n\n```json\n \"browserslist\": [\n \"extends browserslist-config-mycompany/desktop\",\n \"extends browserslist-config-mycompany/mobile\"\n ]\n```\n\nWhen writing a shared Browserslist package, just export an array.\n`browserslist-config-mycompany/index.js`:\n\n```js\nmodule.exports = [\n 'last 1 version',\n '> 1%',\n 'ie 10'\n]\n```\n\n## Environment Variables\n\nIf some tool use Browserslist inside, you can change browsers settings\nby [environment variables]:\n\n* `BROWSERSLIST` with browsers queries.\n\n ```sh\n BROWSERSLIST=\"> 5%\" gulp css\n ```\n\n* `BROWSERSLIST_CONFIG` with path to config file.\n\n ```sh\n BROWSERSLIST_CONFIG=./config/browserslist gulp css\n ```\n\n* `BROWSERSLIST_ENV` with environments string.\n\n ```sh\n BROWSERSLIST_ENV=\"development\" gulp css\n ```\n\n* `BROWSERSLIST_STATS` with path to the custom usage data\n for `> 1% in my stats` query.\n\n ```sh\n BROWSERSLIST_STATS=./config/usage_data.json gulp css\n ```\n\n* `BROWSERSLIST_DISABLE_CACHE` if you want to disable config reading cache.\n\n ```sh\n BROWSERSLIST_DISABLE_CACHE=1 gulp css\n ```\n\n[environment variables]: https://en.wikipedia.org/wiki/Environment_variable\n\n## Environments\n\nYou can also specify different browser queries for various environments.\nBrowserslist will choose query according to `BROWSERSLIST_ENV` or `NODE_ENV`\nvariables. If none of them is declared, Browserslist will firstly look\nfor `production` queries and then use defaults.\n\nIn `package.json`:\n\n```js\n \"browserslist\": {\n \"production\": [\n \"> 1%\",\n \"ie 10\"\n ],\n \"development\": [\n \"last 1 chrome version\",\n \"last 1 firefox version\"\n ]\n }\n```\n\nIn `.browserslistrc` config:\n\n```ini\n[production staging]\n> 1%\nie 10\n\n[development]\nlast 1 chrome version\nlast 1 firefox version\n```\n\n## Custom Usage Data\n\nIf you have a website, you can query against the usage statistics of your site.\n[`browserslist-ga`] will ask access to Google Analytics and then generate\n`browserslist-stats.json`:\n\n```\nnpx browserslist-ga\n```\n\nOf course, you can generate usage statistics file by any other method.\nFile format should be like:\n\n```js\n{\n \"ie\": {\n \"6\": 0.01,\n \"7\": 0.4,\n \"8\": 1.5\n },\n \"chrome\": {\n …\n },\n …\n}\n```\n\nNote that you can query against your custom usage data\nwhile also querying against global or regional data.\nFor example, the query `> 1% in my stats, > 5% in US, 10%` is permitted.\n\n[`browserslist-ga`]: https://github.com/browserslist/browserslist-ga\n[Can I Use]: https://caniuse.com/\n\n## JS API\n\n```js\nvar browserslist = require('browserslist');\n\n// Your CSS/JS build tool code\nvar process = function (source, opts) {\n var browsers = browserslist(opts.browsers, {\n stats: opts.stats,\n path: opts.file,\n env: opts.env\n });\n // Your code to add features for selected browsers\n}\n```\n\nQueries can be a string `\"> 1%, IE 10\"`\nor an array `['> 1%', 'IE 10']`.\n\nIf a query is missing, Browserslist will look for a config file.\nYou can provide a `path` option (that can be a file) to find the config file\nrelatively to it.\n\nOptions:\n\n* `path`: file or a directory path to look for config file. Default is `.`.\n* `env`: what environment section use from config. Default is `production`.\n* `stats`: custom usage statistics data.\n* `config`: path to config if you want to set it manually.\n* `ignoreUnknownVersions`: do not throw on direct query (like `ie 12`).\n Default is `false.`\n* `dangerousExtend`: Disable security checks for `extend` query.\n Default is `false.`\n\nFor non-JS environment and debug purpose you can use CLI tool:\n\n```sh\nbrowserslist \"> 1%, IE 10\"\n```\n\n## Coverage\n\nYou can get total users coverage for selected browsers by JS API:\n\n```js\nbrowserslist.coverage(browserslist('> 1%'))\n//=> 81.4\n```\n\n```js\nbrowserslist.coverage(browserslist('> 1% in US'), 'US')\n//=> 83.1\n```\n\n```js\nbrowserslist.coverage(browserslist('> 1% in my stats'), 'my stats')\n//=> 83.1\n```\n\n```js\nbrowserslist.coverage(browserslist('> 1% in my stats', { stats }), stats)\n//=> 82.2\n```\n\nOr by CLI:\n\n```sh\n$ browserslist --coverage \"> 1%\"\nThese browsers account for 81.4% of all users globally\n```\n\n```sh\n$ browserslist --coverage=US \"> 1% in US\"\nThese browsers account for 83.1% of all users in the US\n```\n\n```sh\n$ browserslist --coverage \"> 1% in my stats\"\nThese browsers account for 83.1% of all users in custom statistics\n```\n\n```sh\n$ browserslist --coverage \"> 1% in my stats\" --stats=./stats.json\nThese browsers account for 83.1% of all users in custom statistics\n```\n\n## Cache\n\nBrowserslist caches the configuration it reads from `package.json` and\n`browserslist` files, as well as knowledge about the existence of files,\nfor the duration of the hosting process.\n\nTo clear these caches, use:\n\n```js\nbrowserslist.clearCaches();\n```\n\nTo disable the caching altogether, set the `BROWSERSLIST_DISABLE_CACHE`\nenvironment variable.\n\n## Security Contact\n\nTo report a security vulnerability, please use the [Tidelift security contact].\nTidelift will coordinate the fix and disclosure.\n\n[Tidelift security contact]: https://tidelift.com/security\n[](http://travis-ci.org/soldair/node-buffer-indexof)\n \n\nbuffer-indexof\n===================\n\nfind the index of a buffer in a buffer. should behave like String.indexOf etc.\n\n```js\n\nvar bindexOf = require('buffer-indexof');\n\nvar newLineBuffer = new Buffer(\"\\n\");\n\nvar b = new Buffer(\"hi\\nho\\nsilver\");\n\nbindexOf(b,newLineBuffer) === 2\n\n// you can also start from index\n\nbindexOf(b,newLineBuffer,3) === 5\n\n// no match === -1\n\nbindexOf(b,newLineBuffer,6) === -1\n\n```\n\nCHANGELOG\n----------\n\n- 1.0.0\n - fixed issue finding multibyte needles in haystack. thanks @imulus\n- 1.0.1\n - fixed failing to find partial matches as pointed out by @bahaa-aidi in #2\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)\n[](#sponsors)\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nA tiny JavaScript debugging utility modelled after Node.js core's debugging\ntechnique. Works in Node.js and web browsers.\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample [_app.js_](./examples/node/app.js):\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %o', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample [_worker.js_](./examples/node/worker.js):\n\n```js\nvar a = require('debug')('worker:a')\n , b = require('debug')('worker:b');\n\nfunction work() {\n a('doing lots of uninteresting work');\n setTimeout(work, Math.random() * 1000);\n}\n\nwork();\n\nfunction workb() {\n b('doing some work');\n setTimeout(workb, Math.random() * 2000);\n}\n\nworkb();\n```\n\nThe `DEBUG` environment variable is then used to enable these based on space or\ncomma-delimited names.\n\nHere are some examples:\n\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 04 pm\" src=\"https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 38 pm\" src=\"https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 25 pm\" src=\"https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png\">\n\n#### Windows command prompt notes\n\n##### CMD\n\nOn Windows the environment variable is set using the `set` command.\n\n```cmd\nset DEBUG=*,-not_this\n```\n\nExample:\n\n```cmd\nset DEBUG=* & node app.js\n```\n\n##### PowerShell (VS Code default)\n\nPowerShell uses different syntax to set environment variables.\n\n```cmd\n$env:DEBUG = \"*,-not_this\"\n```\n\nExample:\n\n```cmd\n$env:DEBUG='app';node app.js\n```\n\nThen, run the program to be debugged as usual.\n\nnpm script example:\n```js\n \"windowsDebug\": \"@powershell -Command $env:DEBUG='*';node app.js\",\n```\n\n## Namespace Colors\n\nEvery debug instance has a color generated for it based on its namespace name.\nThis helps when visually parsing the debug output to identify which debug instance\na debug line belongs to.\n\n#### Node.js\n\nIn Node.js, colors are enabled when stderr is a TTY. You also _should_ install\nthe [`supports-color`](https://npmjs.org/supports-color) module alongside debug,\notherwise debug will only use a small handful of basic colors.\n\n<img width=\"521\" src=\"https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png\">\n\n#### Web Browser\n\nColors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\noption. These are WebKit web inspectors, Firefox ([since version\n31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\nand the Firebug plugin for Firefox (any version).\n\n<img width=\"524\" src=\"https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png\">\n\n## Millisecond diff\n\nWhen actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nWhen stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png\">\n\n## Conventions\n\nIf you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\". If you append a \"*\" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.\n\n## Wildcards\n\nThe `*` character may be used as a wildcard. Suppose for example your library has\ndebuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\",\ninstead of listing all three with\n`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do\n`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\nYou can also exclude specific debuggers by prefixing them with a \"-\" character.\nFor example, `DEBUG=*,-connect:*` would include all debuggers except those\nstarting with \"connect:\".\n\n## Environment Variables\n\nWhen running through Node.js, you can set a few environment variables that will\nchange the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n__Note:__ The environment variables beginning with `DEBUG_` end up being\nconverted into an Options object that gets used with `%o`/`%O` formatters.\nSee the Node.js documentation for\n[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\nfor the complete list.\n\n## Formatters\n\nDebug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.\nBelow are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\nYou can add custom formatters by extending the `debug.formatters` object.\nFor example, if you wanted to add support for rendering a Buffer as hex with\n`%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser Support\n\nYou can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\nor just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\nif you don't want to build it yourself.\n\nDebug's enable state is currently persisted by `localStorage`.\nConsider the situation shown below where you have `worker:a` and `worker:b`,\nand wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample [_stdout.js_](./examples/node/stdout.js):\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Extend\nYou can simply extend debugger \n```js\nconst log = require('debug')('auth');\n\n//creates new debug instance with extended namespace\nconst logSign = log.extend('sign');\nconst logLogin = log.extend('login');\n\nlog('hello'); // auth hello\nlogSign('hello'); //auth:sign hello\nlogLogin('hello'); //auth:login hello\n```\n\n## Set dynamically\n\nYou can also enable debug dynamically by calling the `enable()` method :\n\n```js\nlet debug = require('debug');\n\nconsole.log(1, debug.enabled('test'));\n\ndebug.enable('test');\nconsole.log(2, debug.enabled('test'));\n\ndebug.disable();\nconsole.log(3, debug.enabled('test'));\n\n```\n\nprint : \n```\n1 false\n2 true\n3 false\n```\n\nUsage : \n`enable(namespaces)` \n`namespaces` can include modes separated by a colon and wildcards.\n \nNote that calling `enable()` completely overrides previously set DEBUG variable : \n\n```\n$ DEBUG=foo node -e 'var dbg = require(\"debug\"); dbg.enable(\"bar\"); console.log(dbg.enabled(\"foo\"))'\n=> false\n```\n\n## Checking whether a debug target is enabled\n\nAfter you've created a debug instance, you can determine whether or not it is\nenabled by checking the `enabled` property:\n\n```javascript\nconst debug = require('debug')('http');\n\nif (debug.enabled) {\n // do stuff...\n}\n```\n\nYou can also manually toggle this property to force the debug instance to be\nenabled or disabled.\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n\n## Backers\n\nSupport us with a monthly donation and help us continue our activities. 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src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# Source Map\n\n[](https://travis-ci.org/mozilla/source-map)\n\n[](https://www.npmjs.com/package/source-map)\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n\n## Use with Node\n\n $ npm install source-map\n\n## Use on the Web\n\n <script src=\"https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js\" defer></script>\n\n--------------------------------------------------------------------------------\n\n<!-- `npm run toc` to regenerate the Table of Contents -->\n\n<!-- START doctoc generated TOC please keep comment here to allow auto update -->\n<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->\n## Table of Contents\n\n- [Examples](#examples)\n - [Consuming a source map](#consuming-a-source-map)\n - [Generating a source map](#generating-a-source-map)\n - [With SourceNode (high level API)](#with-sourcenode-high-level-api)\n - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)\n- [API](#api)\n - [SourceMapConsumer](#sourcemapconsumer)\n - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)\n - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)\n - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)\n - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)\n - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)\n - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)\n - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)\n - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)\n - [SourceMapGenerator](#sourcemapgenerator)\n - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)\n - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)\n - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)\n - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)\n - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)\n - [SourceNode](#sourcenode)\n - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)\n - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)\n - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)\n - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)\n - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)\n - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)\n - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)\n - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)\n - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)\n - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)\n - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)\n\n<!-- END doctoc generated TOC please keep comment here to allow auto update -->\n\n## Examples\n\n### Consuming a source map\n\n```js\nvar rawSourceMap = {\n version: 3,\n file: 'min.js',\n names: ['bar', 'baz', 'n'],\n sources: ['one.js', 'two.js'],\n sourceRoot: 'http://example.com/www/js/',\n mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'\n};\n\nvar smc = new SourceMapConsumer(rawSourceMap);\n\nconsole.log(smc.sources);\n// [ 'http://example.com/www/js/one.js',\n// 'http://example.com/www/js/two.js' ]\n\nconsole.log(smc.originalPositionFor({\n line: 2,\n column: 28\n}));\n// { source: 'http://example.com/www/js/two.js',\n// line: 2,\n// column: 10,\n// name: 'n' }\n\nconsole.log(smc.generatedPositionFor({\n source: 'http://example.com/www/js/two.js',\n line: 2,\n column: 10\n}));\n// { line: 2, column: 28 }\n\nsmc.eachMapping(function (m) {\n // ...\n});\n```\n\n### Generating a source map\n\nIn depth guide:\n[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)\n\n#### With SourceNode (high level API)\n\n```js\nfunction compile(ast) {\n switch (ast.type) {\n case 'BinaryExpression':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n [compile(ast.left), \" + \", compile(ast.right)]\n );\n case 'Literal':\n return new SourceNode(\n ast.location.line,\n ast.location.column,\n ast.location.source,\n String(ast.value)\n );\n // ...\n default:\n throw new Error(\"Bad AST\");\n }\n}\n\nvar ast = parse(\"40 + 2\", \"add.js\");\nconsole.log(compile(ast).toStringWithSourceMap({\n file: 'add.js'\n}));\n// { code: '40 + 2',\n// map: [object SourceMapGenerator] }\n```\n\n#### With SourceMapGenerator (low level API)\n\n```js\nvar map = new SourceMapGenerator({\n file: \"source-mapped.js\"\n});\n\nmap.addMapping({\n generated: {\n line: 10,\n column: 35\n },\n source: \"foo.js\",\n original: {\n line: 33,\n column: 2\n },\n name: \"christopher\"\n});\n\nconsole.log(map.toString());\n// '{\"version\":3,\"file\":\"source-mapped.js\",\"sources\":[\"foo.js\"],\"names\":[\"christopher\"],\"mappings\":\";;;;;;;;;mCAgCEA\"}'\n```\n\n## API\n\nGet a reference to the module:\n\n```js\n// Node.js\nvar sourceMap = require('source-map');\n\n// Browser builds\nvar sourceMap = window.sourceMap;\n\n// Inside Firefox\nconst sourceMap = require(\"devtools/toolkit/sourcemap/source-map.js\");\n```\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referenced by individual\n mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: Optional. The generated filename this source map is associated with.\n\n```js\nvar consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);\n```\n\n#### SourceMapConsumer.prototype.computeColumnSpans()\n\nCompute the last column for each generated mapping. The last column is\ninclusive.\n\n```js\n// Before:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n\nconsumer.computeColumnSpans();\n\n// After:\nconsumer.allGeneratedPositionsFor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1,\n// lastColumn: 9 },\n// { line: 2,\n// column: 10,\n// lastColumn: 19 },\n// { line: 2,\n// column: 20,\n// lastColumn: Infinity } ]\n\n```\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source.\n\n* `column`: The column number in the generated source.\n\n* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or\n `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest\n element that is smaller than or greater than the one we are searching for,\n respectively, if the exact element cannot be found. Defaults to\n `SourceMapConsumer.GREATEST_LOWER_BOUND`.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n available.\n\n* `line`: The line number in the original source, or null if this information is\n not available.\n\n* `column`: The column number in the original source, or null if this\n information is not available.\n\n* `name`: The original identifier, or null if this information is not available.\n\n```js\nconsumer.originalPositionFor({ line: 2, column: 10 })\n// { source: 'foo.coffee',\n// line: 2,\n// column: 2,\n// name: null }\n\nconsumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })\n// { source: null,\n// line: null,\n// column: null,\n// name: null }\n```\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source.\n\n* `column`: The column number in the original source.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null.\n\n* `column`: The column number in the generated source, or null.\n\n```js\nconsumer.generatedPositionFor({ source: \"example.js\", line: 2, column: 10 })\n// { line: 1,\n// column: 56 }\n```\n\n#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)\n\nReturns all generated line and column information for the original source, line,\nand column provided. If no column is provided, returns all mappings\ncorresponding to a either the line we are searching for or the next closest line\nthat has any mappings. Otherwise, returns all mappings corresponding to the\ngiven line and either the column we are searching for or the next closest column\nthat has any offsets.\n\nThe only argument is an object with the following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source.\n\n* `column`: Optional. The column number in the original source.\n\nand an array of objects is returned, each with the following properties:\n\n* `line`: The line number in the generated source, or null.\n\n* `column`: The column number in the generated source, or null.\n\n```js\nconsumer.allGeneratedpositionsfor({ line: 2, source: \"foo.coffee\" })\n// [ { line: 2,\n// column: 1 },\n// { line: 2,\n// column: 10 },\n// { line: 2,\n// column: 20 } ]\n```\n\n#### SourceMapConsumer.prototype.hasContentsOfAllSources()\n\nReturn true if we have the embedded source content for every source listed in\nthe source map, false otherwise.\n\nIn other words, if this method returns `true`, then\n`consumer.sourceContentFor(s)` will succeed for every source `s` in\n`consumer.sources`.\n\n```js\n// ...\nif (consumer.hasContentsOfAllSources()) {\n consumerReadyCallback(consumer);\n} else {\n fetchSources(consumer, consumerReadyCallback);\n}\n// ...\n```\n\n#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\nIf the source content for the given source is not found, then an error is\nthrown. Optionally, pass `true` as the second param to have `null` returned\ninstead.\n\n```js\nconsumer.sources\n// [ \"my-cool-lib.clj\" ]\n\nconsumer.sourceContentFor(\"my-cool-lib.clj\")\n// \"...\"\n\nconsumer.sourceContentFor(\"this is not in the source map\");\n// Error: \"this is not in the source map\" is not in the source map\n\nconsumer.sourceContentFor(\"this is not in the source map\", true);\n// null\n```\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping. Mappings have the\n form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,\n name }`\n\n* `context`: Optional. If specified, this object will be the value of `this`\n every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n the mappings sorted by the generated file's line/column order or the\n original's source/line/column order, respectively. Defaults to\n `SourceMapConsumer.GENERATED_ORDER`.\n\n```js\nconsumer.eachMapping(function (m) { console.log(m); })\n// ...\n// { source: 'illmatic.js',\n// generatedLine: 1,\n// generatedColumn: 0,\n// originalLine: 1,\n// originalColumn: 0,\n// name: null }\n// { source: 'illmatic.js',\n// generatedLine: 2,\n// generatedColumn: 0,\n// originalLine: 2,\n// originalColumn: 0,\n// name: null }\n// ...\n```\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator([startOfSourceMap])\n\nYou may pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n associated with.\n\n* `sourceRoot`: A root for all relative URLs in this source map.\n\n* `skipValidation`: Optional. When `true`, disables validation of mappings as\n they are added. This can improve performance but should be used with\n discretion, as a last resort. Even then, one should avoid using this flag when\n running tests, if possible.\n\n```js\nvar generator = new sourceMap.SourceMapGenerator({\n file: \"my-generated-javascript-file.js\",\n sourceRoot: \"http://example.com/app/js/\"\n});\n```\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.\n\n* `sourceMapConsumer` The SourceMap.\n\n```js\nvar generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer);\n```\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n```js\ngenerator.addMapping({\n source: \"module-one.scm\",\n original: { line: 128, column: 0 },\n generated: { line: 3, column: 456 }\n})\n```\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n```js\ngenerator.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimum of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n If omitted, sourceMapConsumer.file will be used, if it exists.\n Otherwise an error will be thrown.\n\n* `sourceMapPath`: Optional. The dirname of the path to the SourceMap\n to be applied. If relative, it is relative to the SourceMap.\n\n This parameter is needed when the two SourceMaps aren't in the same\n directory, and the SourceMap to be applied contains relative source\n paths. If so, those relative source paths need to be rewritten\n relative to the SourceMap.\n\n If omitted, it is assumed that both SourceMaps are in the same directory,\n thus not needing any rewriting. (Supplying `'.'` has the same effect.)\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n```js\ngenerator.toString()\n// '{\"version\":3,\"sources\":[\"module-one.scm\"],\"names\":[],\"mappings\":\"...snip...\",\"file\":\"my-generated-javascript-file.js\",\"sourceRoot\":\"http://example.com/app/js/\"}'\n```\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode([line, column, source[, chunk[, name]]])\n\n* `line`: The original line number associated with this source node, or null if\n it isn't associated with an original line.\n\n* `column`: The original column number associated with this source node, or null\n if it isn't associated with an original column.\n\n* `source`: The original source's filename; null if no filename is provided.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n below.\n\n* `name`: Optional. The original identifier.\n\n```js\nvar node = new SourceNode(1, 2, \"a.cpp\", [\n new SourceNode(3, 4, \"b.cpp\", \"extern int status;\\n\"),\n new SourceNode(5, 6, \"c.cpp\", \"std::string* make_string(size_t n);\\n\"),\n new SourceNode(7, 8, \"d.cpp\", \"int main(int argc, char** argv) {}\\n\"),\n]);\n```\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n* `relativePath` The optional path that relative sources in `sourceMapConsumer`\n should be relative to.\n\n```js\nvar consumer = new SourceMapConsumer(fs.readFileSync(\"path/to/my-file.js.map\", \"utf8\"));\nvar node = SourceNode.fromStringWithSourceMap(fs.readFileSync(\"path/to/my-file.js\"),\n consumer);\n```\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.add(\" + \");\nnode.add(otherNode);\nnode.add([leftHandOperandNode, \" + \", rightHandOperandNode]);\n```\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n `SourceNode`, or an array where each member is one of those things.\n\n```js\nnode.prepend(\"/** Build Id: f783haef86324gf **/\\n\\n\");\n```\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n```js\nnode.setSourceContent(\"module-one.scm\",\n fs.readFileSync(\"path/to/module-one.scm\"))\n```\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.walk(function (code, loc) { console.log(\"WALK:\", code, loc); })\n// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }\n// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }\n// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }\n```\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n```js\nvar a = new SourceNode(1, 2, \"a.js\", \"generated from a\");\na.setSourceContent(\"a.js\", \"original a\");\nvar b = new SourceNode(1, 2, \"b.js\", \"generated from b\");\nb.setSourceContent(\"b.js\", \"original b\");\nvar c = new SourceNode(1, 2, \"c.js\", \"generated from c\");\nc.setSourceContent(\"c.js\", \"original c\");\n\nvar node = new SourceNode(null, null, null, [a, b, c]);\nnode.walkSourceContents(function (source, contents) { console.log(\"WALK:\", source, \":\", contents); })\n// WALK: a.js : original a\n// WALK: b.js : original b\n// WALK: c.js : original c\n```\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n```js\nvar lhs = new SourceNode(1, 2, \"a.rs\", \"my_copy\");\nvar operand = new SourceNode(3, 4, \"a.rs\", \"=\");\nvar rhs = new SourceNode(5, 6, \"a.rs\", \"orig.clone()\");\n\nvar node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);\nvar joinedNode = node.join(\" \");\n```\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming white space from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n```js\n// Trim trailing white space.\nnode.replaceRight(/\\s*$/, \"\");\n```\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toString()\n// 'unodostresquatro'\n```\n\n#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n```js\nvar node = new SourceNode(1, 2, \"a.js\", [\n new SourceNode(3, 4, \"b.js\", \"uno\"),\n \"dos\",\n [\n \"tres\",\n new SourceNode(5, 6, \"c.js\", \"quatro\")\n ]\n]);\n\nnode.toStringWithSourceMap({ file: \"my-output-file.js\" })\n// { code: 'unodostresquatro',\n// map: [object SourceMapGenerator] }\n```\n# mixin-object [](http://badge.fury.io/js/mixin-object)\n\n> Mixin the own and inherited properties of other objects onto the first object. Pass an empty object as the first arg to shallow clone.\n\nIf you only want to combine own-properties, use [extend-shallow](https://github.com/jonschlinkert/extend-shallow).\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i mixin-object --save\n```\n\nInstall with [bower](http://bower.io/)\n\n```sh\n$ bower install mixin-object --save\n```\n\n## Usage\n\n```js\nvar mixin = require('mixin-object');\n\nvar obj = {c: 'c'};\nvar foo = mixin({a: 'a'}, {b: 'b'});\nconsole.log(foo);\n//=> {c: 'c', a: 'a', b: 'b'}\nconsole.log(obj);\n//=> {c: 'c'}\n\nmixin({}, {a: 'a'}, {b: 'b'});\n//=> {a: 'a', b: 'b'}\n```\n\n## Related\n\n* [assign-deep](https://github.com/jonschlinkert/assign-deep): Deeply assign the enumerable properties of source objects to a destination object.\n* [defaults-deep](https://github.com/jonschlinkert/defaults-deep): Like `extend` but recursively copies only the missing properties/values to the target object.\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [mixin-deep](https://github.com/jonschlinkert/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\n* [merge-deep](https://github.com/jonschlinkert/merge-deep): Recursively merge values in a javascript object.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/mixin-object/issues/new)\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2014-2015 [Jon Schlinkert](https://github.com/jonschlinkert)\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on July 05, 2015._\n# cacache [](https://npm.im/cacache) [](https://npm.im/cacache) [](https://travis-ci.org/zkat/cacache) [](https://ci.appveyor.com/project/zkat/cacache) [](https://coveralls.io/github/zkat/cacache?branch=latest)\n\n[`cacache`](https://github.com/zkat/cacache) is a Node.js library for managing\nlocal key and content address caches. It's really fast, really good at\nconcurrency, and it will never give you corrupted data, even if cache files\nget corrupted or manipulated.\n\nIt was originally written to be used as [npm](https://npm.im)'s local cache, but\ncan just as easily be used on its own.\n\n_Translations: [español](README.es.md)_\n\n## Install\n\n`$ npm install --save cacache`\n\n## Table of Contents\n\n* [Example](#example)\n* [Features](#features)\n* [Contributing](#contributing)\n* [API](#api)\n * [Using localized APIs](#localized-api)\n * Reading\n * [`ls`](#ls)\n * [`ls.stream`](#ls-stream)\n * [`get`](#get-data)\n * [`get.stream`](#get-stream)\n * [`get.info`](#get-info)\n * [`get.hasContent`](#get-hasContent)\n * Writing\n * [`put`](#put-data)\n * [`put.stream`](#put-stream)\n * [`put*` opts](#put-options)\n * [`rm.all`](#rm-all)\n * [`rm.entry`](#rm-entry)\n * [`rm.content`](#rm-content)\n * Utilities\n * [`setLocale`](#set-locale)\n * [`clearMemoized`](#clear-memoized)\n * [`tmp.mkdir`](#tmp-mkdir)\n * [`tmp.withTmp`](#with-tmp)\n * Integrity\n * [Subresource Integrity](#integrity)\n * [`verify`](#verify)\n * [`verify.lastRun`](#verify-last-run)\n\n### Example\n\n```javascript\nconst cacache = require('cacache/en')\nconst fs = require('fs')\n\nconst tarball = '/path/to/mytar.tgz'\nconst cachePath = '/tmp/my-toy-cache'\nconst key = 'my-unique-key-1234'\n\n// Cache it! Use `cachePath` as the root of the content cache\ncacache.put(cachePath, key, '10293801983029384').then(integrity => {\n console.log(`Saved content to ${cachePath}.`)\n})\n\nconst destination = '/tmp/mytar.tgz'\n\n// Copy the contents out of the cache and into their destination!\n// But this time, use stream instead!\ncacache.get.stream(\n cachePath, key\n).pipe(\n fs.createWriteStream(destination)\n).on('finish', () => {\n console.log('done extracting!')\n})\n\n// The same thing, but skip the key index.\ncacache.get.byDigest(cachePath, integrityHash).then(data => {\n fs.writeFile(destination, data, err => {\n console.log('tarball data fetched based on its sha512sum and written out!')\n })\n})\n```\n\n### Features\n\n* Extraction by key or by content address (shasum, etc)\n* [Subresource Integrity](#integrity) web standard support\n* Multi-hash support - safely host sha1, sha512, etc, in a single cache\n* Automatic content deduplication\n* Fault tolerance (immune to corruption, partial writes, process races, etc)\n* Consistency guarantees on read and write (full data verification)\n* Lockless, high-concurrency cache access\n* Streaming support\n* Promise support\n* Pretty darn fast -- sub-millisecond reads and writes including verification\n* Arbitrary metadata storage\n* Garbage collection and additional offline verification\n* Thorough test coverage\n* There's probably a bloom filter in there somewhere. Those are cool, right? 🤔\n\n### Contributing\n\nThe cacache team enthusiastically welcomes contributions and project participation! There's a bunch of things you can do if you want to contribute! The [Contributor Guide](CONTRIBUTING.md) has all the information you need for everything from reporting bugs to contributing entire new features. Please don't hesitate to jump in if you'd like to, or even ask us questions if something isn't clear.\n\nAll participants and maintainers in this project are expected to follow [Code of Conduct](CODE_OF_CONDUCT.md), and just generally be excellent to each other.\n\nPlease refer to the [Changelog](CHANGELOG.md) for project history details, too.\n\nHappy hacking!\n\n### API\n\n#### <a name=\"localized-api\"></a> Using localized APIs\n\ncacache includes a complete API in English, with the same features as other\ntranslations. To use the English API as documented in this README, use\n`require('cacache/en')`. This is also currently the default if you do\n`require('cacache')`, but may change in the future.\n\ncacache also supports other languages! You can find the list of currently\nsupported ones by looking in `./locales` in the source directory. You can use\nthe API in that language with `require('cacache/<lang>')`.\n\nWant to add support for a new language? Please go ahead! You should be able to\ncopy `./locales/en.js` and `./locales/en.json` and fill them in. Translating the\n`README.md` is a bit more work, but also appreciated if you get around to it. 👍🏼\n\n#### <a name=\"ls\"></a> `> cacache.ls(cache) -> Promise<Object>`\n\nLists info for all entries currently in the cache as a single large object. Each\nentry in the object will be keyed by the unique index key, with corresponding\n[`get.info`](#get-info) objects as the values.\n\n##### Example\n\n```javascript\ncacache.ls(cachePath).then(console.log)\n// Output\n{\n 'my-thing': {\n key: 'my-thing',\n integrity: 'sha512-BaSe64/EnCoDED+HAsh=='\n path: '.testcache/content/deadbeef', // joined with `cachePath`\n time: 12345698490,\n size: 4023948,\n metadata: {\n name: 'blah',\n version: '1.2.3',\n description: 'this was once a package but now it is my-thing'\n }\n },\n 'other-thing': {\n key: 'other-thing',\n integrity: 'sha1-ANothER+hasH=',\n path: '.testcache/content/bada55',\n time: 11992309289,\n size: 111112\n }\n}\n```\n\n#### <a name=\"ls-stream\"></a> `> cacache.ls.stream(cache) -> Readable`\n\nLists info for all entries currently in the cache as a single large object.\n\nThis works just like [`ls`](#ls), except [`get.info`](#get-info) entries are\nreturned as `'data'` events on the returned stream.\n\n##### Example\n\n```javascript\ncacache.ls.stream(cachePath).on('data', console.log)\n// Output\n{\n key: 'my-thing',\n integrity: 'sha512-BaSe64HaSh',\n path: '.testcache/content/deadbeef', // joined with `cachePath`\n time: 12345698490,\n size: 13423,\n metadata: {\n name: 'blah',\n version: '1.2.3',\n description: 'this was once a package but now it is my-thing'\n }\n}\n\n{\n key: 'other-thing',\n integrity: 'whirlpool-WoWSoMuchSupport',\n path: '.testcache/content/bada55',\n time: 11992309289,\n size: 498023984029\n}\n\n{\n ...\n}\n```\n\n#### <a name=\"get-data\"></a> `> cacache.get(cache, key, [opts]) -> Promise({data, metadata, integrity})`\n\nReturns an object with the cached data, digest, and metadata identified by\n`key`. The `data` property of this object will be a `Buffer` instance that\npresumably holds some data that means something to you. I'm sure you know what\nto do with it! cacache just won't care.\n\n`integrity` is a [Subresource\nIntegrity](#integrity)\nstring. That is, a string that can be used to verify `data`, which looks like\n`<hash-algorithm>-<base64-integrity-hash>`.\n\nIf there is no content identified by `key`, or if the locally-stored data does\nnot pass the validity checksum, the promise will be rejected.\n\nA sub-function, `get.byDigest` may be used for identical behavior, except lookup\nwill happen by integrity hash, bypassing the index entirely. This version of the\nfunction *only* returns `data` itself, without any wrapper.\n\n##### Note\n\nThis function loads the entire cache entry into memory before returning it. If\nyou're dealing with Very Large data, consider using [`get.stream`](#get-stream)\ninstead.\n\n##### Example\n\n```javascript\n// Look up by key\ncache.get(cachePath, 'my-thing').then(console.log)\n// Output:\n{\n metadata: {\n thingName: 'my'\n },\n integrity: 'sha512-BaSe64HaSh',\n data: Buffer#<deadbeef>,\n size: 9320\n}\n\n// Look up by digest\ncache.get.byDigest(cachePath, 'sha512-BaSe64HaSh').then(console.log)\n// Output:\nBuffer#<deadbeef>\n```\n\n#### <a name=\"get-stream\"></a> `> cacache.get.stream(cache, key, [opts]) -> Readable`\n\nReturns a [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams) of the cached data identified by `key`.\n\nIf there is no content identified by `key`, or if the locally-stored data does\nnot pass the validity checksum, an error will be emitted.\n\n`metadata` and `integrity` events will be emitted before the stream closes, if\nyou need to collect that extra data about the cached entry.\n\nA sub-function, `get.stream.byDigest` may be used for identical behavior,\nexcept lookup will happen by integrity hash, bypassing the index entirely. This\nversion does not emit the `metadata` and `integrity` events at all.\n\n##### Example\n\n```javascript\n// Look up by key\ncache.get.stream(\n cachePath, 'my-thing'\n).on('metadata', metadata => {\n console.log('metadata:', metadata)\n}).on('integrity', integrity => {\n console.log('integrity:', integrity)\n}).pipe(\n fs.createWriteStream('./x.tgz')\n)\n// Outputs:\nmetadata: { ... }\nintegrity: 'sha512-SoMeDIGest+64=='\n\n// Look up by digest\ncache.get.stream.byDigest(\n cachePath, 'sha512-SoMeDIGest+64=='\n).pipe(\n fs.createWriteStream('./x.tgz')\n)\n```\n\n#### <a name=\"get-info\"></a> `> cacache.get.info(cache, key) -> Promise`\n\nLooks up `key` in the cache index, returning information about the entry if\none exists.\n\n##### Fields\n\n* `key` - Key the entry was looked up under. Matches the `key` argument.\n* `integrity` - [Subresource Integrity hash](#integrity) for the content this entry refers to.\n* `path` - Filesystem path relative to `cache` argument where content is stored.\n* `time` - Timestamp the entry was first added on.\n* `metadata` - User-assigned metadata associated with the entry/content.\n\n##### Example\n\n```javascript\ncacache.get.info(cachePath, 'my-thing').then(console.log)\n\n// Output\n{\n key: 'my-thing',\n integrity: 'sha256-MUSTVERIFY+ALL/THINGS=='\n path: '.testcache/content/deadbeef',\n time: 12345698490,\n size: 849234,\n metadata: {\n name: 'blah',\n version: '1.2.3',\n description: 'this was once a package but now it is my-thing'\n }\n}\n```\n\n#### <a name=\"get-hasContent\"></a> `> cacache.get.hasContent(cache, integrity) -> Promise`\n\nLooks up a [Subresource Integrity hash](#integrity) in the cache. If content\nexists for this `integrity`, it will return an object, with the specific single integrity hash\nthat was found in `sri` key, and the size of the found content as `size`. If no content exists for this integrity, it will return `false`.\n\n##### Example\n\n```javascript\ncacache.get.hasContent(cachePath, 'sha256-MUSTVERIFY+ALL/THINGS==').then(console.log)\n\n// Output\n{\n sri: {\n source: 'sha256-MUSTVERIFY+ALL/THINGS==',\n algorithm: 'sha256',\n digest: 'MUSTVERIFY+ALL/THINGS==',\n options: []\n },\n size: 9001\n}\n\ncacache.get.hasContent(cachePath, 'sha521-NOT+IN/CACHE==').then(console.log)\n\n// Output\nfalse\n```\n\n#### <a name=\"put-data\"></a> `> cacache.put(cache, key, data, [opts]) -> Promise`\n\nInserts data passed to it into the cache. The returned Promise resolves with a\ndigest (generated according to [`opts.algorithms`](#optsalgorithms)) after the\ncache entry has been successfully written.\n\n##### Example\n\n```javascript\nfetch(\n 'https://registry.npmjs.org/cacache/-/cacache-1.0.0.tgz'\n).then(data => {\n return cacache.put(cachePath, 'registry.npmjs.org|cacache@1.0.0', data)\n}).then(integrity => {\n console.log('integrity hash is', integrity)\n})\n```\n\n#### <a name=\"put-stream\"></a> `> cacache.put.stream(cache, key, [opts]) -> Writable`\n\nReturns a [Writable\nStream](https://nodejs.org/api/stream.html#stream_writable_streams) that inserts\ndata written to it into the cache. Emits an `integrity` event with the digest of\nwritten contents when it succeeds.\n\n##### Example\n\n```javascript\nrequest.get(\n 'https://registry.npmjs.org/cacache/-/cacache-1.0.0.tgz'\n).pipe(\n cacache.put.stream(\n cachePath, 'registry.npmjs.org|cacache@1.0.0'\n ).on('integrity', d => console.log(`integrity digest is ${d}`))\n)\n```\n\n#### <a name=\"put-options\"></a> `> cacache.put options`\n\n`cacache.put` functions have a number of options in common.\n\n##### `opts.metadata`\n\nArbitrary metadata to be attached to the inserted key.\n\n##### `opts.size`\n\nIf provided, the data stream will be verified to check that enough data was\npassed through. If there's more or less data than expected, insertion will fail\nwith an `EBADSIZE` error.\n\n##### `opts.integrity`\n\nIf present, the pre-calculated digest for the inserted content. If this option\nif provided and does not match the post-insertion digest, insertion will fail\nwith an `EINTEGRITY` error.\n\n`algorithms` has no effect if this option is present.\n\n##### `opts.algorithms`\n\nDefault: ['sha512']\n\nHashing algorithms to use when calculating the [subresource integrity\ndigest](#integrity)\nfor inserted data. Can use any algorithm listed in `crypto.getHashes()` or\n`'omakase'`/`'お任せします'` to pick a random hash algorithm on each insertion. You\nmay also use any anagram of `'modnar'` to use this feature.\n\nCurrently only supports one algorithm at a time (i.e., an array length of\nexactly `1`). Has no effect if `opts.integrity` is present.\n\n##### `opts.uid`/`opts.gid`\n\nIf provided, cacache will do its best to make sure any new files added to the\ncache use this particular `uid`/`gid` combination. This can be used,\nfor example, to drop permissions when someone uses `sudo`, but cacache makes\nno assumptions about your needs here.\n\n##### `opts.memoize`\n\nDefault: null\n\nIf provided, cacache will memoize the given cache insertion in memory, bypassing\nany filesystem checks for that key or digest in future cache fetches. Nothing\nwill be written to the in-memory cache unless this option is explicitly truthy.\n\nIf `opts.memoize` is an object or a `Map`-like (that is, an object with `get`\nand `set` methods), it will be written to instead of the global memoization\ncache.\n\nReading from disk data can be forced by explicitly passing `memoize: false` to\nthe reader functions, but their default will be to read from memory.\n\n#### <a name=\"rm-all\"></a> `> cacache.rm.all(cache) -> Promise`\n\nClears the entire cache. Mainly by blowing away the cache directory itself.\n\n##### Example\n\n```javascript\ncacache.rm.all(cachePath).then(() => {\n console.log('THE APOCALYPSE IS UPON US 😱')\n})\n```\n\n#### <a name=\"rm-entry\"></a> `> cacache.rm.entry(cache, key) -> Promise`\n\nAlias: `cacache.rm`\n\nRemoves the index entry for `key`. Content will still be accessible if\nrequested directly by content address ([`get.stream.byDigest`](#get-stream)).\n\nTo remove the content itself (which might still be used by other entries), use\n[`rm.content`](#rm-content). Or, to safely vacuum any unused content, use\n[`verify`](#verify).\n\n##### Example\n\n```javascript\ncacache.rm.entry(cachePath, 'my-thing').then(() => {\n console.log('I did not like it anyway')\n})\n```\n\n#### <a name=\"rm-content\"></a> `> cacache.rm.content(cache, integrity) -> Promise`\n\nRemoves the content identified by `integrity`. Any index entries referring to it\nwill not be usable again until the content is re-added to the cache with an\nidentical digest.\n\n##### Example\n\n```javascript\ncacache.rm.content(cachePath, 'sha512-SoMeDIGest/IN+BaSE64==').then(() => {\n console.log('data for my-thing is gone!')\n})\n```\n\n#### <a name=\"set-locale\"></a> `> cacache.setLocale(locale)`\n\nConfigure the language/locale used for messages and errors coming from cacache.\nThe list of available locales is in the `./locales` directory in the project\nroot.\n\n_Interested in contributing more languages! [Submit a PR](CONTRIBUTING.md)!_\n\n#### <a name=\"clear-memoized\"></a> `> cacache.clearMemoized()`\n\nCompletely resets the in-memory entry cache.\n\n#### <a name=\"tmp-mkdir\"></a> `> tmp.mkdir(cache, opts) -> Promise<Path>`\n\nReturns a unique temporary directory inside the cache's `tmp` dir. This\ndirectory will use the same safe user assignment that all the other stuff use.\n\nOnce the directory is made, it's the user's responsibility that all files within\nare made according to the same `opts.gid`/`opts.uid` settings that would be\npassed in. If not, you can ask cacache to do it for you by calling\n[`tmp.fix()`](#tmp-fix), which will fix all tmp directory permissions.\n\nIf you want automatic cleanup of this directory, use\n[`tmp.withTmp()`](#with-tpm)\n\n##### Example\n\n```javascript\ncacache.tmp.mkdir(cache).then(dir => {\n fs.writeFile(path.join(dir, 'blablabla'), Buffer#<1234>, ...)\n})\n```\n\n#### <a name=\"with-tmp\"></a> `> tmp.withTmp(cache, opts, cb) -> Promise`\n\nCreates a temporary directory with [`tmp.mkdir()`](#tmp-mkdir) and calls `cb`\nwith it. The created temporary directory will be removed when the return value\nof `cb()` resolves -- that is, if you return a Promise from `cb()`, the tmp\ndirectory will be automatically deleted once that promise completes.\n\nThe same caveats apply when it comes to managing permissions for the tmp dir's\ncontents.\n\n##### Example\n\n```javascript\ncacache.tmp.withTmp(cache, dir => {\n return fs.writeFileAsync(path.join(dir, 'blablabla'), Buffer#<1234>, ...)\n}).then(() => {\n // `dir` no longer exists\n})\n```\n\n#### <a name=\"integrity\"></a> Subresource Integrity Digests\n\nFor content verification and addressing, cacache uses strings following the\n[Subresource\nIntegrity spec](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity).\nThat is, any time cacache expects an `integrity` argument or option, it\nshould be in the format `<hashAlgorithm>-<base64-hash>`.\n\nOne deviation from the current spec is that cacache will support any hash\nalgorithms supported by the underlying Node.js process. You can use\n`crypto.getHashes()` to see which ones you can use.\n\n##### Generating Digests Yourself\n\nIf you have an existing content shasum, they are generally formatted as a\nhexadecimal string (that is, a sha1 would look like:\n`5f5513f8822fdbe5145af33b64d8d970dcf95c6e`). In order to be compatible with\ncacache, you'll need to convert this to an equivalent subresource integrity\nstring. For this example, the corresponding hash would be:\n`sha1-X1UT+IIv2+UUWvM7ZNjZcNz5XG4=`.\n\nIf you want to generate an integrity string yourself for existing data, you can\nuse something like this:\n\n```javascript\nconst crypto = require('crypto')\nconst hashAlgorithm = 'sha512'\nconst data = 'foobarbaz'\n\nconst integrity = (\n hashAlgorithm +\n '-' +\n crypto.createHash(hashAlgorithm).update(data).digest('base64')\n)\n```\n\nYou can also use [`ssri`](https://npm.im/ssri) to have a richer set of functionality\naround SRI strings, including generation, parsing, and translating from existing\nhex-formatted strings.\n\n#### <a name=\"verify\"></a> `> cacache.verify(cache, opts) -> Promise`\n\nChecks out and fixes up your cache:\n\n* Cleans up corrupted or invalid index entries.\n* Custom entry filtering options.\n* Garbage collects any content entries not referenced by the index.\n* Checks integrity for all content entries and removes invalid content.\n* Fixes cache ownership.\n* Removes the `tmp` directory in the cache and all its contents.\n\nWhen it's done, it'll return an object with various stats about the verification\nprocess, including amount of storage reclaimed, number of valid entries, number\nof entries removed, etc.\n\n##### Options\n\n* `opts.uid` - uid to assign to cache and its contents\n* `opts.gid` - gid to assign to cache and its contents\n* `opts.filter` - receives a formatted entry. Return false to remove it.\n Note: might be called more than once on the same entry.\n\n##### Example\n\n```sh\necho somegarbage >> $CACHEPATH/content/deadbeef\n```\n\n```javascript\ncacache.verify(cachePath).then(stats => {\n // deadbeef collected, because of invalid checksum.\n console.log('cache is much nicer now! stats:', stats)\n})\n```\n\n#### <a name=\"verify-last-run\"></a> `> cacache.verify.lastRun(cache) -> Promise`\n\nReturns a `Date` representing the last time `cacache.verify` was run on `cache`.\n\n##### Example\n\n```javascript\ncacache.verify(cachePath).then(() => {\n cacache.verify.lastRun(cachePath).then(lastTime => {\n console.log('cacache.verify was last called on' + lastTime)\n })\n})\n```\n# cache-base [](https://www.npmjs.com/package/cache-base) [](https://npmjs.org/package/cache-base) [](https://npmjs.org/package/cache-base) [](https://travis-ci.org/jonschlinkert/cache-base)\n\n> Basic object cache with `get`, `set`, `del`, and `has` methods for node.js/javascript projects.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save cache-base\n```\n\n## Usage\n\n```js\nvar Cache = require('cache-base');\n\n// instantiate\nvar app = new Cache();\n\n// set values\napp.set('a', 'b');\napp.set('c.d', 'e');\n\n// get values\napp.get('a');\n//=> 'b'\napp.get('c');\n//=> {d: 'e'}\n\nconsole.log(app.cache);\n//=> {a: 'b'}\n```\n\n**Inherit**\n\n```js\nvar util = require('util');\nvar Cache = require('cache-base');\n\nfunction MyApp() {\n Cache.call(this);\n}\nutil.inherits(MyApp, Cache);\n\nvar app = new MyApp();\napp.set('a', 'b');\napp.get('a');\n//=> 'b'\n```\n\n**Namespace**\n\nDefine a custom property for storing values.\n\n```js\nvar Cache = require('cache-base').namespace('data');\nvar app = new Cache();\napp.set('a', 'b');\nconsole.log(app.data);\n//=> {a: 'b'}\n```\n\n## API\n\n### [namespace](index.js#L29)\n\nCreate a `Cache` constructor that when instantiated will store values on the given `prop`.\n\n**Params**\n\n* `prop` **{String}**: The property name to use for storing values.\n* `returns` **{Function}**: Returns a custom `Cache` constructor\n\n**Example**\n\n```js\nvar Cache = require('cache-base').namespace('data');\nvar cache = new Cache();\n\ncache.set('foo', 'bar');\n//=> {data: {foo: 'bar'}}\n```\n\n### [Cache](index.js#L43)\n\nCreate a new `Cache`. Internally the `Cache` constructor is created using the `namespace` function, with `cache` defined as the storage object.\n\n**Params**\n\n* `cache` **{Object}**: Optionally pass an object to initialize with.\n\n**Example**\n\n```js\nvar app = new Cache();\n```\n\n### [.set](index.js#L84)\n\nAssign `value` to `key`. Also emits `set` with the key and value.\n\n**Params**\n\n* `key` **{String}**\n* `value` **{any}**\n* `returns` **{Object}**: Returns the instance for chaining.\n\n**Events**\n\n* `emits`: `set` with `key` and `value` as arguments.\n\n**Example**\n\n```js\napp.on('set', function(key, val) {\n // do something when `set` is emitted\n});\n\napp.set(key, value);\n\n// also takes an object or array\napp.set({name: 'Halle'});\napp.set([{foo: 'bar'}, {baz: 'quux'}]);\nconsole.log(app);\n//=> {name: 'Halle', foo: 'bar', baz: 'quux'}\n```\n\n### [.union](index.js#L114)\n\nUnion `array` to `key`. Also emits `set` with the key and value.\n\n**Params**\n\n* `key` **{String}**\n* `value` **{any}**\n* `returns` **{Object}**: Returns the instance for chaining.\n\n**Example**\n\n```js\napp.union('a.b', ['foo']);\napp.union('a.b', ['bar']);\nconsole.log(app.get('a'));\n//=> {b: ['foo', 'bar']}\n```\n\n### [.get](index.js#L144)\n\nReturn the value of `key`. Dot notation may be used to get [nested property values](https://github.com/jonschlinkert/get-value).\n\n**Params**\n\n* `key` **{String}**: The name of the property to get. Dot-notation may be used.\n* `returns` **{any}**: Returns the value of `key`\n\n**Events**\n\n* `emits`: `get` with `key` and `value` as arguments.\n\n**Example**\n\n```js\napp.set('a.b.c', 'd');\napp.get('a.b');\n//=> {c: 'd'}\n\napp.get(['a', 'b']);\n//=> {c: 'd'}\n```\n\n### [.has](index.js#L171)\n\nReturn true if app has a stored value for `key`, false only if value is `undefined`.\n\n**Params**\n\n* `key` **{String}**\n* `returns` **{Boolean}**\n\n**Events**\n\n* `emits`: `has` with `key` and true or false as arguments.\n\n**Example**\n\n```js\napp.set('foo', 'bar');\napp.has('foo');\n//=> true\n```\n\n### [.del](index.js#L199)\n\nDelete one or more properties from the instance.\n\n**Params**\n\n* `key` **{String|Array}**: Property name or array of property names.\n* `returns` **{Object}**: Returns the instance for chaining.\n\n**Events**\n\n* `emits`: `del` with the `key` as the only argument.\n\n**Example**\n\n```js\napp.del(); // delete all\n// or\napp.del('foo');\n// or\napp.del(['foo', 'bar']);\n```\n\n### [.clear](index.js#L218)\n\nReset the entire cache to an empty object.\n\n**Example**\n\n```js\napp.clear();\n```\n\n### [.visit](index.js#L235)\n\nVisit `method` over the properties in the given object, or map\nvisit over the object-elements in an array.\n\n**Params**\n\n* `method` **{String}**: The name of the `base` method to call.\n* `val` **{Object|Array}**: The object or array to iterate over.\n* `returns` **{Object}**: Returns the instance for chaining.\n\n## About\n\n### Related projects\n\n* [base-methods](https://www.npmjs.com/package/base-methods): base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/jonschlinkert/base-methods) | [homepage](https://github.com/jonschlinkert/base-methods \"base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value \"Use property paths (`a.b.c`) to get a nested value from an object.\")\n* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value \"Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\")\n* [option-cache](https://www.npmjs.com/package/option-cache): Simple API for managing options in JavaScript applications. | [homepage](https://github.com/jonschlinkert/option-cache \"Simple API for managing options in JavaScript applications.\")\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value \"Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.\")\n* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value \"Delete nested properties from an object using dot notation.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 54 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\nunique-slug\n===========\n\nGenerate a unique character string suitible for use in files and URLs.\n\n```\nvar uniqueSlug = require('unique-slug')\n\nvar randomSlug = uniqueSlug()\nvar fileSlug = uniqueSlug('/etc/passwd')\n```\n\n### uniqueSlug(*str*) → String (8 chars)\n\nIf *str* is passed in then the return value will be its murmur hash in\nhex.\n\nIf *str* is not passed in, it will be 4 bytes coverted into 8 hex\ncharacters, generated by `crypto.pseudoRandomBytes`.\n# is-accessor-descriptor [](https://www.npmjs.com/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-accessor-descriptor\n```\n\n## Usage\n\n```js\nvar isAccessor = require('is-accessor-descriptor');\n\nisAccessor({get: function() {}});\n//=> true\n```\n\nYou may also pass an object and property name to check if the property is an accessor:\n\n```js\nisAccessor(foo, 'bar');\n```\n\n## Examples\n\n`false` when not an object\n\n```js\nisAccessor('a')\nisAccessor(null)\nisAccessor([])\n//=> false\n```\n\n`true` when the object has valid properties\n\nand the properties all have the correct JavaScript types:\n\n```js\nisAccessor({get: noop, set: noop})\nisAccessor({get: noop})\nisAccessor({set: noop})\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisAccessor({get: noop, set: noop, bar: 'baz'})\nisAccessor({get: noop, writable: true})\nisAccessor({get: noop, value: true})\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisAccessor({get: noop, set: 'baz'})\nisAccessor({get: 'foo', set: noop})\nisAccessor({get: 'foo', bar: 'baz'})\nisAccessor({get: 'foo', set: 'baz'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisAccessor({get: noop, set: noop, enumerable: 'foo'})\nisAccessor({set: noop, configurable: 'foo'})\nisAccessor({get: noop, configurable: 'foo'})\n//=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 22 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# regenerator-transform\n\nTransform async/generator functions with [regenerator](https://github.com/facebook/regenerator)\n\n## Installation\n\n```sh\n$ npm install regenerator-transform\n```\n\n## Usage\n\n### Via `.babelrc` (Recommended)\n\n**.babelrc**\n\n```js\n// without options\n{\n \"plugins\": [\"regenerator-transform\"]\n}\n// with options\n{\n \"plugins\": [\n [\"regenerator-transform\", {\n asyncGenerators: false, // true by default\n generators: false, // true by default\n async: false // true by default\n }]\n ]\n}\n```\n\n### Via CLI\n\n```sh\n$ babel --plugins regenerator-transform script.js\n```\n\n### Via Node API\n\n```javascript\nrequire(\"@babel/core\").transformSync(\"code\", {\n plugins: [\"regenerator-transform\"]\n});\n```\n# yallist\n\nYet Another Linked List\n\nThere are many doubly-linked list implementations like it, but this\none is mine.\n\nFor when an array would be too big, and a Map can't be iterated in\nreverse order.\n\n[](https://travis-ci.org/isaacs/yallist) [](https://coveralls.io/github/isaacs/yallist)\n\n## basic usage\n\n```javascript\nvar yallist = require('yallist')\nvar myList = yallist.create([1, 2, 3])\nmyList.push('foo')\nmyList.unshift('bar')\n// of course pop() and shift() are there, too\nconsole.log(myList.toArray()) // ['bar', 1, 2, 3, 'foo']\nmyList.forEach(function (k) {\n // walk the list head to tail\n})\nmyList.forEachReverse(function (k, index, list) {\n // walk the list tail to head\n})\nvar myDoubledList = myList.map(function (k) {\n return k + k\n})\n// now myDoubledList contains ['barbar', 2, 4, 6, 'foofoo']\n// mapReverse is also a thing\nvar myDoubledListReverse = myList.mapReverse(function (k) {\n return k + k\n}) // ['foofoo', 6, 4, 2, 'barbar']\n\nvar reduced = myList.reduce(function (set, entry) {\n set += entry\n return set\n}, 'start')\nconsole.log(reduced) // 'startfoo123bar'\n```\n\n## api\n\nThe whole API is considered \"public\".\n\nFunctions with the same name as an Array method work more or less the\nsame way.\n\nThere's reverse versions of most things because that's the point.\n\n### Yallist\n\nDefault export, the class that holds and manages a list.\n\nCall it with either a forEach-able (like an array) or a set of\narguments, to initialize the list.\n\nThe Array-ish methods all act like you'd expect. No magic length,\nthough, so if you change that it won't automatically prune or add\nempty spots.\n\n### Yallist.create(..)\n\nAlias for Yallist function. Some people like factories.\n\n#### yallist.head\n\nThe first node in the list\n\n#### yallist.tail\n\nThe last node in the list\n\n#### yallist.length\n\nThe number of nodes in the list. (Change this at your peril. It is\nnot magic like Array length.)\n\n#### yallist.toArray()\n\nConvert the list to an array.\n\n#### yallist.forEach(fn, [thisp])\n\nCall a function on each item in the list.\n\n#### yallist.forEachReverse(fn, [thisp])\n\nCall a function on each item in the list, in reverse order.\n\n#### yallist.get(n)\n\nGet the data at position `n` in the list. If you use this a lot,\nprobably better off just using an Array.\n\n#### yallist.getReverse(n)\n\nGet the data at position `n`, counting from the tail.\n\n#### yallist.map(fn, thisp)\n\nCreate a new Yallist with the result of calling the function on each\nitem.\n\n#### yallist.mapReverse(fn, thisp)\n\nSame as `map`, but in reverse.\n\n#### yallist.pop()\n\nGet the data from the list tail, and remove the tail from the list.\n\n#### yallist.push(item, ...)\n\nInsert one or more items to the tail of the list.\n\n#### yallist.reduce(fn, initialValue)\n\nLike Array.reduce.\n\n#### yallist.reduceReverse\n\nLike Array.reduce, but in reverse.\n\n#### yallist.reverse\n\nReverse the list in place.\n\n#### yallist.shift()\n\nGet the data from the list head, and remove the head from the list.\n\n#### yallist.slice([from], [to])\n\nJust like Array.slice, but returns a new Yallist.\n\n#### yallist.sliceReverse([from], [to])\n\nJust like yallist.slice, but the result is returned in reverse.\n\n#### yallist.toArray()\n\nCreate an array representation of the list.\n\n#### yallist.toArrayReverse()\n\nCreate a reversed array representation of the list.\n\n#### yallist.unshift(item, ...)\n\nInsert one or more items to the head of the list.\n\n#### yallist.unshiftNode(node)\n\nMove a Node object to the front of the list. (That is, pull it out of\nwherever it lives, and make it the new head.)\n\nIf the node belongs to a different list, then that list will remove it\nfirst.\n\n#### yallist.pushNode(node)\n\nMove a Node object to the end of the list. (That is, pull it out of\nwherever it lives, and make it the new tail.)\n\nIf the node belongs to a list already, then that list will remove it\nfirst.\n\n#### yallist.removeNode(node)\n\nRemove a node from the list, preserving referential integrity of head\nand tail and other nodes.\n\nWill throw an error if you try to have a list remove a node that\ndoesn't belong to it.\n\n### Yallist.Node\n\nThe class that holds the data and is actually the list.\n\nCall with `var n = new Node(value, previousNode, nextNode)`\n\nNote that if you do direct operations on Nodes themselves, it's very\neasy to get into weird states where the list is broken. Be careful :)\n\n#### node.next\n\nThe next node in the list.\n\n#### node.prev\n\nThe previous node in the list.\n\n#### node.value\n\nThe data the node contains.\n\n#### node.list\n\nThe list to which this node belongs. (Null if it does not belong to\nany list.)\n# JavaScript Sync/Async forEach\n\nAn optionally-asynchronous forEach with an interesting interface.\n\n## Getting Started\n\nThis code should work just fine in Node.js:\n\nFirst, install the module with: `npm install async-foreach`\n\n```javascript\nvar forEach = require('async-foreach').forEach;\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n});\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n```\n\nOr in the browser:\n\n```html\n<script src=\"dist/ba-foreach.min.js\"></script>\n<script>\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n});\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n</script>\n```\n\nIn the browser, you can attach the forEach method to any object.\n\n```html\n<script>\nthis.exports = Bocoup.utils;\n</script>\n<script src=\"dist/ba-foreach.min.js\"></script>\n<script>\nBocoup.utils.forEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n});\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n</script>\n```\n\n## The General Idea (Why I thought this was worth sharing)\n\nThe idea is to allow the callback to decide _at runtime_ whether the loop will be synchronous or asynchronous. By using `this` in a creative way (in situations where that value isn't already spoken for), an entire control API can be offered without over-complicating function signatures.\n\n```javascript\nforEach(arr, function(item, index) {\n // Synchronous.\n});\n\nforEach(arr, function(item, index) {\n // Only when `this.async` is called does iteration becomes asynchronous. The\n // loop won't be continued until the `done` function is executed.\n var done = this.async();\n // Continue in one second.\n setTimeout(done, 1000);\n});\n\nforEach(arr, function(item, index) {\n // Break out of synchronous iteration early by returning false.\n return index !== 1;\n});\n\nforEach(arr, function(item, index) {\n // Break out of asynchronous iteration early...\n var done = this.async();\n // ...by passing false to the done function.\n setTimeout(function() {\n done(index !== 1);\n });\n});\n```\n\n## Examples\nSee the unit tests for more examples.\n\n```javascript\n// Generic \"done\" callback.\nfunction allDone(notAborted, arr) {\n console.log(\"done\", notAborted, arr);\n}\n\n// Synchronous.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n// done true [\"a\", \"b\", \"c\"]\n\n// Synchronous with early abort.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n if (item === \"b\") { return false; }\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// done false [\"a\", \"b\", \"c\"]\n\n// Asynchronous.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n var done = this.async();\n setTimeout(function() {\n done();\n }, 500);\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n// done true [\"a\", \"b\", \"c\"]\n\n// Asynchronous with early abort.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n var done = this.async();\n setTimeout(function() {\n done(item !== \"b\");\n }, 500);\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// done false [\"a\", \"b\", \"c\"]\n\n// Not actually asynchronous.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n var done = this.async()\n done();\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// each c 2 [\"a\", \"b\", \"c\"]\n// done true [\"a\", \"b\", \"c\"]\n\n// Not actually asynchronous with early abort.\nforEach([\"a\", \"b\", \"c\"], function(item, index, arr) {\n console.log(\"each\", item, index, arr);\n var done = this.async();\n done(item !== \"b\");\n}, allDone);\n// logs:\n// each a 0 [\"a\", \"b\", \"c\"]\n// each b 1 [\"a\", \"b\", \"c\"]\n// done false [\"a\", \"b\", \"c\"]\n```\n\n## Contributing\nIn lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [grunt](https://github.com/cowboy/grunt).\n\n_Also, please don't edit files in the \"dist\" subdirectory as they are generated via grunt. You'll find source code in the \"lib\" subdirectory!_\n\n## Release History\n\n04/29/2013\nv0.1.3\nRemoved hard Node.js version dependency.\n\n11/17/2011\nv0.1.2\nAdding sparse array support.\nInvalid length properties are now sanitized.\nThis closes issue #1 (like a boss).\n\n11/11/2011\nv0.1.1\nRefactored code to be much simpler. Yay for unit tests!\n\n11/11/2011\nv0.1.0\nInitial Release.\n\n## License\nCopyright (c) 2012 \"Cowboy\" Ben Alman \nLicensed under the MIT license. \n<http://benalman.com/about/license/>\n# console-browserify\n\n[![build status][1]][2]\n\n[![browser support][3]][4]\n\nEmulate console for all the browsers\n\n## Example\n\n```js\nvar console = require(\"console-browserify\")\n\nconsole.log(\"hello world!\")\n```\n\n## Installation\n\n`npm install console-browserify`\n\n## Contributors\n\n - Raynos\n\n## MIT Licenced\n\n [1]: https://secure.travis-ci.org/Raynos/console-browserify.png\n [2]: http://travis-ci.org/Raynos/console-browserify\n [3]: http://ci.testling.com/Raynos/console-browserify.png\n [4]: http://ci.testling.com/Raynos/console-browserify\n# HAR Validator\n\n[![License][license-image]][license-url] [![version][npm-image]][npm-url] [![Build Status][circle-image]][circle-url]\n\n> Extremely fast HTTP Archive ([HAR](https://github.com/ahmadnassri/har-spec/blob/master/versions/1.2.md)) validator using JSON Schema.\n\n## Install\n\n```bash\nnpm install har-validator\n```\n\n## CLI Usage\n\nPlease refer to [`har-cli`](https://github.com/ahmadnassri/har-cli) for more info.\n\n## API\n\n**Note**: as of [`v2.0.0`](https://github.com/ahmadnassri/node-har-validator/releases/tag/v2.0.0) this module defaults to Promise based API. _For backward compatibility with `v1.x` an [async/callback API](docs/async.md) is also provided_\n\n- [async API](docs/async.md)\n- [callback API](docs/async.md)\n- [Promise API](docs/promise.md) _(default)_\n\n---\n> Author: [Ahmad Nassri](https://www.ahmadnassri.com/) • \n> Github: [@ahmadnassri](https://github.com/ahmadnassri) • \n> Twitter: [@ahmadnassri](https://twitter.com/ahmadnassri)\n\n[license-url]: LICENSE\n[license-image]: https://img.shields.io/github/license/ahmadnassri/node-har-validator.svg?style=for-the-badge&logo=circleci\n\n[circle-url]: https://circleci.com/gh/ahmadnassri/workflows/node-har-validator\n[circle-image]: https://img.shields.io/circleci/project/github/ahmadnassri/node-har-validator/master.svg?style=for-the-badge&logo=circleci\n\n[npm-url]: https://www.npmjs.com/package/har-validator\n[npm-image]: https://img.shields.io/npm/v/har-validator.svg?style=for-the-badge&logo=npm\nThis folder contains entry points for all `core-js` features with dependencies. It's the recommended way for usage only required features.\nbrowserify-cipher\n===\n\n[](https://travis-ci.org/crypto-browserify/browserify-cipher)\n\nProvides createCipher, createDecipher, createCipheriv, createDecipheriv and\ngetCiphers for the browserify. Includes AES and DES ciphers.\n# define-property [](https://www.npmjs.com/package/define-property) [](https://npmjs.org/package/define-property) [](https://npmjs.org/package/define-property) [](https://travis-ci.org/jonschlinkert/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save define-property\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add define-property\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 20, 2017._\n# ASN1.js\n\nASN.1 DER Encoder/Decoder and DSL.\n\n## Example\n\nDefine model:\n\n```javascript\nvar asn = require('asn1.js');\n\nvar Human = asn.define('Human', function() {\n this.seq().obj(\n this.key('firstName').octstr(),\n this.key('lastName').octstr(),\n this.key('age').int(),\n this.key('gender').enum({ 0: 'male', 1: 'female' }),\n this.key('bio').seqof(Bio)\n );\n});\n\nvar Bio = asn.define('Bio', function() {\n this.seq().obj(\n this.key('time').gentime(),\n this.key('description').octstr()\n );\n});\n```\n\nEncode data:\n\n```javascript\nvar output = Human.encode({\n firstName: 'Thomas',\n lastName: 'Anderson',\n age: 28,\n gender: 'male',\n bio: [\n {\n time: +new Date('31 March 1999'),\n description: 'freedom of mind'\n }\n ]\n}, 'der');\n```\n\nDecode data:\n\n```javascript\nvar human = Human.decode(output, 'der');\nconsole.log(human);\n/*\n{ firstName: <Buffer 54 68 6f 6d 61 73>,\n lastName: <Buffer 41 6e 64 65 72 73 6f 6e>,\n age: 28,\n gender: 'male',\n bio:\n [ { time: 922820400000,\n description: <Buffer 66 72 65 65 64 6f 6d 20 6f 66 20 6d 69 6e 64> } ] }\n*/\n```\n\n### Partial decode\n\nIts possible to parse data without stopping on first error. In order to do it,\nyou should call:\n\n```javascript\nvar human = Human.decode(output, 'der', { partial: true });\nconsole.log(human);\n/*\n{ result: { ... },\n errors: [ ... ] }\n*/\n```\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2013.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n# arr-diff [](https://www.npmjs.com/package/arr-diff) [](https://npmjs.org/package/arr-diff) [](https://travis-ci.org/jonschlinkert/arr-diff)\n\n> Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save arr-diff\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add arr-diff\n```\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install arr-diff --save\n```\n\n## Usage\n\nReturns the difference between the first array and additional arrays.\n\n```js\nvar diff = require('arr-diff');\n\nvar a = ['a', 'b', 'c', 'd'];\nvar b = ['b', 'c'];\n\nconsole.log(diff(a, b))\n//=> ['a', 'd']\n```\n\n## Benchmarks\n\nThis library versus [array-differ](https://github.com/sindresorhus/array-differ), on April 14, 2017:\n\n```\nBenchmarking: (4 of 4)\n · long-dupes\n · long\n · med\n · short\n\n# benchmark/fixtures/long-dupes.js (100804 bytes)\n arr-diff-3.0.0 x 822 ops/sec ±0.67% (86 runs sampled)\n arr-diff-4.0.0 x 2,141 ops/sec ±0.42% (89 runs sampled)\n array-differ x 708 ops/sec ±0.70% (89 runs sampled)\n\n fastest is arr-diff-4.0.0\n\n# benchmark/fixtures/long.js (94529 bytes)\n arr-diff-3.0.0 x 882 ops/sec ±0.60% (87 runs sampled)\n arr-diff-4.0.0 x 2,329 ops/sec ±0.97% (83 runs sampled)\n array-differ x 769 ops/sec ±0.61% (90 runs sampled)\n\n fastest is arr-diff-4.0.0\n\n# benchmark/fixtures/med.js (708 bytes)\n arr-diff-3.0.0 x 856,150 ops/sec ±0.42% (89 runs sampled)\n arr-diff-4.0.0 x 4,665,249 ops/sec ±1.06% (89 runs sampled)\n array-differ x 653,888 ops/sec ±1.02% (86 runs sampled)\n\n fastest is arr-diff-4.0.0\n\n# benchmark/fixtures/short.js (60 bytes)\n arr-diff-3.0.0 x 3,078,467 ops/sec ±0.77% (93 runs sampled)\n arr-diff-4.0.0 x 9,213,296 ops/sec ±0.65% (89 runs sampled)\n array-differ x 1,337,051 ops/sec ±0.91% (92 runs sampled)\n\n fastest is arr-diff-4.0.0\n```\n\n## About\n\n### Related projects\n\n* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten \"Recursively flatten an array or arrays. This is the fastest implementation of array flatten.\")\n* [array-filter](https://www.npmjs.com/package/array-filter): Array#filter for older browsers. | [homepage](https://github.com/juliangruber/array-filter \"Array#filter for older browsers.\")\n* [array-intersection](https://www.npmjs.com/package/array-intersection): Return an array with the unique values present in _all_ given arrays using strict equality… [more](https://github.com/jonschlinkert/array-intersection) | [homepage](https://github.com/jonschlinkert/array-intersection \"Return an array with the unique values present in _all_ given arrays using strict equality for comparisons.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 33 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [paulmillr](https://github.com/paulmillr) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 14, 2017._\n# from2 [](https://flattr.com/submit/auto?user_id=hughskennedy&url=http://github.com/hughsk/from2&title=from2&description=hughsk/from2%20on%20GitHub&language=en_GB&tags=flattr,github,javascript&category=software)[](http://github.com/hughsk/stability-badges) #\n\n`from2` is a high-level module for creating readable streams that properly handle backpressure.\n\nConvience wrapper for\n[readable-stream](http://github.com/isaacs/readable-stream)'s `ReadableStream`\nbase class, with an API lifted from\n[from](http://github.com/dominictarr/from) and\n[through2](http://github.com/rvagg/through2).\n\n## Usage ##\n\n[](https://nodei.co/npm/from2)\n\n### `stream = from2([opts], read)` ###\n\nWhere `opts` are the options to pass on to the `ReadableStream` constructor,\nand `read(size, next)` is called when data is requested from the stream.\n\n* `size` is the recommended amount of data (in bytes) to retrieve.\n* `next(err)` should be called when you're ready to emit more data.\n\nFor example, here's a readable stream that emits the contents of a given\nstring:\n\n``` javascript\nvar from = require('from2')\n\nfunction fromString(string) {\n return from(function(size, next) {\n // if there's no more content\n // left in the string, close the stream.\n if (string.length <= 0) return next(null, null)\n\n // Pull in a new chunk of text,\n // removing it from the string.\n var chunk = string.slice(0, size)\n string = string.slice(size)\n\n // Emit \"chunk\" from the stream.\n next(null, chunk)\n })\n}\n\n// pipe \"hello world\" out\n// to stdout.\nfromString('hello world').pipe(process.stdout)\n```\n\n### `stream = from2.obj([opts], read)` ###\n\nShorthand for `from2({ objectMode: true }, read)`.\n\n### `createStream = from2.ctor([opts], read)` ###\n\nIf you're creating similar streams in quick succession you can improve\nperformance by generating a stream **constructor** that you can reuse instead\nof creating one-off streams on each call.\n\nTakes the same options as `from2`, instead returning a constructor which you\ncan use to create new streams.\n\n### See Also\n\n- [from2-array](https://github.com/binocarlos/from2-array) - Create a from2 stream based on an array of source values.\n- [from2-string](https://github.com/yoshuawuyts/from2-string) - Create a stream from a string. Sugary wrapper around from2.\n\n## License ##\n\nMIT. See [LICENSE.md](http://github.com/hughsk/from2/blob/master/LICENSE.md) for details.\n# loader-runner\n\n``` js\nimport { runLoaders } from \"loader-runner\";\n\nrunLoaders({\n\tresource: \"/abs/path/to/file.txt?query\",\n\t// String: Absolute path to the resource (optionally including query string)\n\n\tloaders: [\"/abs/path/to/loader.js?query\"],\n\t// String[]: Absolute paths to the loaders (optionally including query string)\n\t// {loader, options}[]: Absolute paths to the loaders with options object\n\n\tcontext: { minimize: true },\n\t// Additional loader context which is used as base context\n\n\treadResource: fs.readFile.bind(fs)\n\t// A function to read the resource\n\t// Must have signature function(path, function(err, buffer))\n\n}, function(err, result) {\n\t// err: Error?\n\n\t// result.result: Buffer | String\n\t// The result\n\n\t// result.resourceBuffer: Buffer\n\t// The raw resource as Buffer (useful for SourceMaps)\n\n\t// result.cacheable: Bool\n\t// Is the result cacheable or do it require reexecution?\n\n\t// result.fileDependencies: String[]\n\t// An array of paths (files) on which the result depends on\n\n\t// result.contextDependencies: String[]\n\t// An array of paths (directories) on which the result depends on\n})\n```\n\nMore documentation following...\n# browserify-zlib\n\n[](https://travis-ci.org/devongovett/browserify-zlib)\n[](https://david-dm.org/devongovett/browserify-zlib) [](https://github.com/feross/standard)\n\n## Description\n\nEmulates Node's [zlib](https://nodejs.org/api/zlib.html) module for the browser. Can be used as a drop in replacement with [Browserify](http://browserify.org) and [webpack](http://webpack.github.io/).\n\nThe heavy lifting is done using [pako](https://github.com/nodeca/pako). The code in this module is modeled closely after the code in the source of Node core to get as much compatability as possible.\n\n## API\n\nhttps://nodejs.org/api/zlib.html\n\n## Not implemented\n\nThe following options/methods are not supported because pako does not support them yet.\n\n* The `params` method\n\n## License\n\nMIT\n#object-keys <sup>[![Version Badge][npm-version-svg]][package-url]</sup>\n\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][npm-badge-png]][package-url]\n\n[![browser support][testling-svg]][testling-url]\n\nAn Object.keys shim. Invoke its \"shim\" method to shim Object.keys if it is unavailable.\n\nMost common usage:\n```js\nvar keys = Object.keys || require('object-keys');\n```\n\n## Example\n\n```js\nvar keys = require('object-keys');\nvar assert = require('assert');\nvar obj = {\n\ta: true,\n\tb: true,\n\tc: true\n};\n\nassert.deepEqual(keys(obj), ['a', 'b', 'c']);\n```\n\n```js\nvar keys = require('object-keys');\nvar assert = require('assert');\n/* when Object.keys is not present */\ndelete Object.keys;\nvar shimmedKeys = keys.shim();\nassert.equal(shimmedKeys, keys);\nassert.deepEqual(Object.keys(obj), keys(obj));\n```\n\n```js\nvar keys = require('object-keys');\nvar assert = require('assert');\n/* when Object.keys is present */\nvar shimmedKeys = keys.shim();\nassert.equal(shimmedKeys, Object.keys);\nassert.deepEqual(Object.keys(obj), keys(obj));\n```\n\n## Source\nImplementation taken directly from [es5-shim][es5-shim-url], with modifications, including from [lodash][lodash-url].\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[package-url]: https://npmjs.org/package/object-keys\n[npm-version-svg]: http://versionbadg.es/ljharb/object-keys.svg\n[travis-svg]: https://travis-ci.org/ljharb/object-keys.svg\n[travis-url]: https://travis-ci.org/ljharb/object-keys\n[deps-svg]: https://david-dm.org/ljharb/object-keys.svg\n[deps-url]: https://david-dm.org/ljharb/object-keys\n[dev-deps-svg]: https://david-dm.org/ljharb/object-keys/dev-status.svg\n[dev-deps-url]: https://david-dm.org/ljharb/object-keys#info=devDependencies\n[testling-svg]: https://ci.testling.com/ljharb/object-keys.png\n[testling-url]: https://ci.testling.com/ljharb/object-keys\n[es5-shim-url]: https://github.com/es-shims/es5-shim/blob/master/es5-shim.js#L542-589\n[lodash-url]: https://github.com/lodash/lodash\n[npm-badge-png]: https://nodei.co/npm/object-keys.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/object-keys.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/object-keys.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=object-keys\n# copy-concurrently\n\nCopy files, directories and symlinks\n\n```\nconst copy = require('copy-concurrently')\ncopy('/path/to/thing', '/new/path/thing').then(() => {\n // this is now copied\n}).catch(err => {\n // oh noooo\n})\n```\n\nCopies files, directories and symlinks. Ownership is maintained when\nrunning as root, permissions are always maintained. On Windows, if symlinks\nare unavailable then junctions will be used.\n\n## PUBLIC INTERFACE\n\n### copy(from, to, [options]) → Promise\n\nRecursively copies `from` to `to` and resolves its promise when finished. \nIf `to` already exists then the promise will be rejected with an `EEXIST`\nerror.\n\nOptions are:\n\n* maxConcurrency – (Default: `1`) The maximum number of concurrent copies to do at once.\n* recurseWith - (Default: `copy.item`) The function to call on each file after recursing into a directory.\n* isWindows - (Default: `process.platform === 'win32'`) If true enables Windows symlink semantics. This requires\n an extra `stat` to determine if the destination of a symlink is a file or directory. If symlinking a directory\n fails then we'll try making a junction instead.\n\nOptions can also include dependency injection:\n\n* Promise - (Default: `global.Promise`) The promise implementation to use, defaults to Node's.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* writeStreamAtomic - (Default: `require('fs-write-stream-atomic')`) The\n implementation of `writeStreamAtomic` to use. Used to inject a mock.\n* getuid - (Default: `process.getuid`) A function that returns the current UID. Used to inject a mock.\n\n## EXTENSION INTERFACE\n\nOrdinarily you'd only call `copy` above. But it's possible to use it's\ncomponent functions directly. This is useful if, say, you're writing\n[move-concurently](https://npmjs.com/package/move-concurrently).\n\n### copy.file(from, to, options) → Promise\n\nCopies an ordinary file `from` to destination `to`. Uses\n`fs-write-stream-atomic` to ensure that the file is either entirely copied\nor not at all.\n\nOptions are:\n\n* uid, gid - (Optional) If `getuid()` is `0` then this and gid will be used to\n set the user and group of `to`. If uid is present then gid must be too.\n* mode - (Optional) If set then `to` will have its perms set to `mode`.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* Promise - (Default: `global.Promise`) The promise implementation to use, defaults to Node's.\n* writeStreamAtomic - (Default `require('fs-write-stream-atomic')`) The\n implementation of `writeStreamAtomic` to use. Used to inject a mock.\n\n### copy.symlink(from, to, options) → Promise\n\nCopies a symlink `from` to destination `to`. If you're using Windows and\nsymlinking fails and what you're linking is a directory then junctions will\nbe tried instead.\n\nOptions are:\n\n* top - The top level the copy is being run from. This is used to determine\n if the symlink destination is within the set of files we're copying or\n outside it.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* Promise - (Default: `global.Promise`) The promise implementation to use, defaults to Node's.\n* isWindows - (Default: `process.platform === 'win32'`) If true enables Windows symlink semantics. This requires\n an extra `stat` to determine if the destination of a symlink is a file or directory. If symlinking a directory\n fails then we'll try making a junction instead.\n\n### copy.recurse(from, to, options) → Promise\n\nReads all of the files in directory `from` and adds them to the `queue`\nusing `recurseWith` (by default `copy.item`).\n\nOptions are:\n\n* queue - A [`run-queue`](https://npmjs.com/package/run-queue) object to add files found inside `from` to.\n* recurseWith - (Default: `copy.item`) The function to call on each file after recursing into a directory.\n* uid, gid - (Optional) If `getuid()` is `0` then this and gid will be used to\n set the user and group of `to`. If uid is present then gid must be too.\n* mode - (Optional) If set then `to` will have its perms set to `mode`.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* getuid - (Default: `process.getuid`) A function that returns the current UID. Used to inject a mock.\n\n### copy.item(from, to, options) → Promise\n\nCopies some kind of `from` to destination `to`. This looks at the filetype\nand calls `copy.file`, `copy.symlink` or `copy.recurse` as appropriate.\n\nSymlink copies are queued with a priority such that they happen after all\nfile and directory copies as you can't create a junction on windows to a\nfile that doesn't exist yet.\n\nOptions are:\n\n* top - The top level the copy is being run from. This is used to determine\n if the symlink destination is within the set of files we're copying or\n outside it.\n* queue - The [`run-queue`](https://npmjs.com/package/run-queue) object to\n pass to `copy.recurse` if `from` is a directory.\n* recurseWith - (Default: `copy.item`) The function to call on each file after recursing into a directory.\n* uid, gid - (Optional) If `getuid()` is `0` then this and gid will be used to\n set the user and group of `to`. If uid is present then gid must be too.\n* mode - (Optional) If set then `to` will have its perms set to `mode`.\n* fs - (Default: `require('fs')`) The filesystem module to use. Can be used\n to use `graceful-fs` or to inject a mock.\n* getuid - (Default: `process.getuid`) A function that returns the current UID. Used to inject a mock.\n* isWindows - (Default: `process.platform === 'win32'`) If true enables Windows symlink semantics. This requires\n an extra `stat` to determine if the destination of a symlink is a file or directory. If symlinking a directory\n fails then we'll try making a junction instead.\n* Promise - (Default: `global.Promise`) The promise implementation to use, defaults to Node's.\n* writeStreamAtomic - (Default `require('fs-write-stream-atomic')`) The\n implementation of `writeStreamAtomic` to use. Used to inject a mock.\n# define-property [](https://www.npmjs.com/package/define-property) [](https://npmjs.org/package/define-property) [](https://npmjs.org/package/define-property) [](https://travis-ci.org/jonschlinkert/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save define-property\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add define-property\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 20, 2017._\n<!-- TITLE/ -->\n\n<h1>domain-browser</h1>\n\n<!-- /TITLE -->\n\n<!-- BADGES/ -->\n\n<span class=\"badge-travisci\"><a href=\"http://travis-ci.org/bevry/domain-browser\" title=\"Check this project's build status on TravisCI\"><img src=\"https://img.shields.io/travis/bevry/domain-browser/master.svg\" alt=\"Travis CI Build Status\" /></a></span>\n<span class=\"badge-npmversion\"><a href=\"https://npmjs.org/package/domain-browser\" title=\"View this project on NPM\"><img src=\"https://img.shields.io/npm/v/domain-browser.svg\" alt=\"NPM version\" /></a></span>\n<span class=\"badge-npmdownloads\"><a href=\"https://npmjs.org/package/domain-browser\" title=\"View this project on NPM\"><img src=\"https://img.shields.io/npm/dm/domain-browser.svg\" alt=\"NPM downloads\" /></a></span>\n<span class=\"badge-daviddm\"><a href=\"https://david-dm.org/bevry/domain-browser\" title=\"View the status of this project's dependencies on DavidDM\"><img src=\"https://img.shields.io/david/bevry/domain-browser.svg\" alt=\"Dependency Status\" /></a></span>\n<span class=\"badge-daviddmdev\"><a href=\"https://david-dm.org/bevry/domain-browser#info=devDependencies\" title=\"View the status of this project's development dependencies on DavidDM\"><img src=\"https://img.shields.io/david/dev/bevry/domain-browser.svg\" alt=\"Dev Dependency Status\" /></a></span>\n<br class=\"badge-separator\" />\n<span class=\"badge-patreon\"><a href=\"https://patreon.com/bevry\" title=\"Donate to this project using Patreon\"><img src=\"https://img.shields.io/badge/patreon-donate-yellow.svg\" alt=\"Patreon donate button\" /></a></span>\n<span class=\"badge-opencollective\"><a href=\"https://opencollective.com/bevry\" title=\"Donate to this project using Open Collective\"><img src=\"https://img.shields.io/badge/open%20collective-donate-yellow.svg\" alt=\"Open Collective donate button\" /></a></span>\n<span class=\"badge-gratipay\"><a href=\"https://www.gratipay.com/bevry\" title=\"Donate weekly to this project using Gratipay\"><img src=\"https://img.shields.io/badge/gratipay-donate-yellow.svg\" alt=\"Gratipay donate button\" /></a></span>\n<span class=\"badge-flattr\"><a href=\"https://flattr.com/profile/balupton\" title=\"Donate to this project using Flattr\"><img src=\"https://img.shields.io/badge/flattr-donate-yellow.svg\" alt=\"Flattr donate button\" /></a></span>\n<span class=\"badge-paypal\"><a href=\"https://bevry.me/paypal\" title=\"Donate to this project using Paypal\"><img src=\"https://img.shields.io/badge/paypal-donate-yellow.svg\" alt=\"PayPal donate button\" /></a></span>\n<span class=\"badge-bitcoin\"><a href=\"https://bevry.me/bitcoin\" title=\"Donate once-off to this project using Bitcoin\"><img src=\"https://img.shields.io/badge/bitcoin-donate-yellow.svg\" alt=\"Bitcoin donate button\" /></a></span>\n<span class=\"badge-wishlist\"><a href=\"https://bevry.me/wishlist\" title=\"Buy an item on our wishlist for us\"><img src=\"https://img.shields.io/badge/wishlist-donate-yellow.svg\" alt=\"Wishlist browse button\" /></a></span>\n<br class=\"badge-separator\" />\n<span class=\"badge-slackin\"><a href=\"https://slack.bevry.me\" title=\"Join this project's slack community\"><img src=\"https://slack.bevry.me/badge.svg\" alt=\"Slack community badge\" /></a></span>\n\n<!-- /BADGES -->\n\n<!-- DESCRIPTION/ -->\n\nNode's domain module for the web browser. This is merely an evented try...catch with the same API as node, nothing more.\n\n<!-- /DESCRIPTION -->\n\n<!-- INSTALL/ -->\n\n<h2>Install</h2>\n\n<a href=\"https://npmjs.com\" title=\"npm is a package manager for javascript\"><h3>NPM</h3></a><ul>\n<li>Install: <code>npm install --save domain-browser</code></li>\n<li>Module: <code>require('domain-browser')</code></li></ul>\n\n<a href=\"http://browserify.org\" title=\"Browserify lets you require('modules') in the browser by bundling up all of your dependencies\"><h3>Browserify</h3></a><ul>\n<li>Install: <code>npm install --save domain-browser</code></li>\n<li>Module: <code>require('domain-browser')</code></li>\n<li>CDN URL: <code>//wzrd.in/bundle/domain-browser@1.2.0</code></li></ul>\n\n<a href=\"http://enderjs.com\" title=\"Ender is a full featured package manager for your browser\"><h3>Ender</h3></a><ul>\n<li>Install: <code>ender add domain-browser</code></li>\n<li>Module: <code>require('domain-browser')</code></li></ul>\n\n<h3><a href=\"https://github.com/bevry/editions\" title=\"Editions are the best way to produce and consume packages you care about.\">Editions</a></h3>\n\n<p>This package is published with the following editions:</p>\n\n<ul><li><code>domain-browser</code> aliases <code>domain-browser/source/index.js</code></li>\n<li><code>domain-browser/source/index.js</code> is Source + ES5 + <a href=\"https://nodejs.org/dist/latest-v5.x/docs/api/modules.html\" title=\"Node/CJS Modules\">Require</a></li></ul>\n\n<!-- /INSTALL -->\n\n<!-- HISTORY/ -->\n\n<h2>History</h2>\n\n<a href=\"https://github.com/bevry/domain-browser/blob/master/HISTORY.md#files\">Discover the release history by heading on over to the <code>HISTORY.md</code> file.</a>\n\n<!-- /HISTORY -->\n\n<!-- BACKERS/ -->\n\n<h2>Backers</h2>\n\n<h3>Maintainers</h3>\n\nThese amazing people are maintaining this project:\n\n<ul><li><a href=\"http://balupton.com\">Benjamin Lupton</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=balupton\" title=\"View the GitHub contributions of Benjamin Lupton on repository bevry/domain-browser\">view contributions</a></li></ul>\n\n<h3>Sponsors</h3>\n\nNo sponsors yet! Will you be the first?\n\n<span class=\"badge-patreon\"><a href=\"https://patreon.com/bevry\" title=\"Donate to this project using Patreon\"><img src=\"https://img.shields.io/badge/patreon-donate-yellow.svg\" alt=\"Patreon donate button\" /></a></span>\n<span class=\"badge-opencollective\"><a href=\"https://opencollective.com/bevry\" title=\"Donate to this project using Open Collective\"><img src=\"https://img.shields.io/badge/open%20collective-donate-yellow.svg\" alt=\"Open Collective donate button\" /></a></span>\n<span class=\"badge-gratipay\"><a href=\"https://www.gratipay.com/bevry\" title=\"Donate weekly to this project using Gratipay\"><img src=\"https://img.shields.io/badge/gratipay-donate-yellow.svg\" alt=\"Gratipay donate button\" /></a></span>\n<span class=\"badge-flattr\"><a href=\"https://flattr.com/profile/balupton\" title=\"Donate to this project using Flattr\"><img src=\"https://img.shields.io/badge/flattr-donate-yellow.svg\" alt=\"Flattr donate button\" /></a></span>\n<span class=\"badge-paypal\"><a href=\"https://bevry.me/paypal\" title=\"Donate to this project using Paypal\"><img src=\"https://img.shields.io/badge/paypal-donate-yellow.svg\" alt=\"PayPal donate button\" /></a></span>\n<span class=\"badge-bitcoin\"><a href=\"https://bevry.me/bitcoin\" title=\"Donate once-off to this project using Bitcoin\"><img src=\"https://img.shields.io/badge/bitcoin-donate-yellow.svg\" alt=\"Bitcoin donate button\" /></a></span>\n<span class=\"badge-wishlist\"><a href=\"https://bevry.me/wishlist\" title=\"Buy an item on our wishlist for us\"><img src=\"https://img.shields.io/badge/wishlist-donate-yellow.svg\" alt=\"Wishlist browse button\" /></a></span>\n\n<h3>Contributors</h3>\n\nThese amazing people have contributed code to this project:\n\n<ul><li><a href=\"http://balupton.com\">Benjamin Lupton</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=balupton\" title=\"View the GitHub contributions of Benjamin Lupton on repository bevry/domain-browser\">view contributions</a></li>\n<li><a href=\"http://evansolomon.me\">Evan Solomon</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=evansolomon\" title=\"View the GitHub contributions of Evan Solomon on repository bevry/domain-browser\">view contributions</a></li>\n<li><a href=\"http://substack.neocities.org/\">James Halliday</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=substack\" title=\"View the GitHub contributions of James Halliday on repository bevry/domain-browser\">view contributions</a></li>\n<li><a href=\"twitter.com/guybedford\">Guy Bedford</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=guybedford\" title=\"View the GitHub contributions of Guy Bedford on repository bevry/domain-browser\">view contributions</a></li>\n<li><a href=\"https://github.com/TrySound\">Bogdan Chadkin</a> — <a href=\"https://github.com/bevry/domain-browser/commits?author=TrySound\" title=\"View the GitHub contributions of Bogdan Chadkin on repository bevry/domain-browser\">view contributions</a></li></ul>\n\n<a href=\"https://github.com/bevry/domain-browser/blob/master/CONTRIBUTING.md#files\">Discover how you can contribute by heading on over to the <code>CONTRIBUTING.md</code> file.</a>\n\n<!-- /BACKERS -->\n\n<!-- LICENSE/ -->\n\n<h2>License</h2>\n\nUnless stated otherwise all works are:\n\n<ul><li>Copyright © 2013+ <a href=\"http://bevry.me\">Bevry Pty Ltd</a></li></ul>\n\nand licensed under:\n\n<ul><li><a href=\"http://spdx.org/licenses/MIT.html\">MIT License</a></li></ul>\n\n<!-- /LICENSE -->\n# spdx-license-ids\n\n[](https://www.npmjs.com/package/spdx-license-ids)\n[](https://wdp9fww0r9.execute-api.us-west-2.amazonaws.com/production/results/shinnn/spdx-license-ids)\n\nA list of [SPDX license](https://spdx.org/licenses/) identifiers\n\n## Installation\n\n[Download JSON directly](https://raw.githubusercontent.com/shinnn/spdx-license-ids/master/index.json), or [use](https://docs.npmjs.com/cli/install) [npm](https://docs.npmjs.com/about-npm/):\n\n```\nnpm install spdx-license-ids\n```\n\n## [Node.js](https://nodejs.org/) API\n\n### require('spdx-license-ids')\n\nType: `string[]`\n\nAll license IDs except for the currently deprecated ones.\n\n```javascript\nconst ids = require('spdx-license-ids');\n//=> ['0BSD', 'AAL', 'ADSL', 'AFL-1.1', 'AFL-1.2', 'AFL-2.0', 'AFL-2.1', 'AFL-3.0', 'AGPL-1.0-only', ...]\n\nids.includes('BSD-3-Clause'); //=> true\nids.includes('CC-BY-1.0'); //=> true\n\nids.includes('GPL-3.0'); //=> false\n```\n\n### require('spdx-license-ids/deprecated')\n\nType: `string[]`\n\nDeprecated license IDs.\n\n```javascript\nconst deprecatedIds = require('spdx-license-ids/deprecated');\n//=> ['AGPL-1.0', 'AGPL-3.0', 'GFDL-1.1', 'GFDL-1.2', 'GFDL-1.3', 'GPL-1.0', 'GPL-2.0', ...]\n\ndeprecatedIds.includes('BSD-3-Clause'); //=> false\ndeprecatedIds.includes('CC-BY-1.0'); //=> false\n\ndeprecatedIds.includes('GPL-3.0'); //=> true\n```\n\n## License\n\n[Creative Commons Zero v1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/deed)\n# to-arraybuffer [](https://travis-ci.org/jhiesey/to-arraybuffer)\n\n[](https://saucelabs.com/u/to-arraybuffer)\n\nConvert from a Buffer to an ArrayBuffer as fast as possible.\n\nNote that in some cases the returned ArrayBuffer is backed by the same memory as the original\nBuffer (but in other cases it is a copy), so **modifying the ArrayBuffer is not recommended**.\n\nThis module is designed to work both in node.js and in all browsers with ArrayBuffer support\nwhen using [the Buffer implementation provided by Browserify](https://www.npmjs.com/package/buffer).\n\n## Usage\n\n``` js\nvar toArrayBuffer = require('to-arraybuffer')\n\nvar buffer = new Buffer(100)\n// Fill the buffer with some data\n\nvar ab = toArrayBuffer(buffer)\n// `ab` now contains the same data as `buffer`\n```\n\n## License\n\nMIT\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Why use this?\n\n1. [it's fast](#benchmarks) | [optimizations](#optimizations)\n2. [better type checking](#better-type-checking)\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Release history\n\n### v4.0.0\n\n**Added**\n\n* `promise` support\n\n### v5.0.0\n\n**Added**\n\n* `Set Iterator` and `Map Iterator` support\n\n**Fixed**\n\n* Now returns `generatorfunction` for generator functions\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n4. There is no reason to make the code in a microlib as terse as possible, just to win points for making it shorter. It's always better to favor performant code over terse code. You will always only be using a single `require()` statement to use the library anyway, regardless of how the code is written.\n\n## Better type checking\n\nkind-of is more correct than other type checking libs I've looked at. For example, here are some differing results from other popular libs:\n\n### [typeof](https://github.com/CodingFu/typeof) lib\n\nIncorrectly tests instances of custom constructors (pretty common):\n\n```js\nvar typeOf = require('typeof');\nfunction Test() {}\nconsole.log(typeOf(new Test()));\n//=> 'test'\n```\n\nReturns `object` instead of `arguments`:\n\n```js\nfunction foo() {\n console.log(typeOf(arguments)) //=> 'object'\n}\nfoo();\n```\n\n### [type-of](https://github.com/ForbesLindesay/type-of) lib\n\nIncorrectly returns `object` for generator functions, buffers, `Map`, `Set`, `WeakMap` and `WeakSet`:\n\n```js\nfunction * foo() {}\nconsole.log(typeOf(foo));\n//=> 'object'\nconsole.log(typeOf(new Buffer('')));\n//=> 'object'\nconsole.log(typeOf(new Map()));\n//=> 'object'\nconsole.log(typeOf(new Set()));\n//=> 'object'\nconsole.log(typeOf(new WeakMap()));\n//=> 'object'\nconsole.log(typeOf(new WeakSet()));\n//=> 'object'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n<details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n<details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n<details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 82 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 3 | [aretecode](https://github.com/aretecode) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n| 1 | [charlike](https://github.com/charlike) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on October 13, 2017._\n# isobject [](https://www.npmjs.com/package/isobject) [](https://npmjs.org/package/isobject) [](https://npmjs.org/package/isobject) [](https://travis-ci.org/jonschlinkert/isobject)\n\n> Returns true if the value is an object and not an array or null.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save isobject\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add isobject\n```\n\nUse [is-plain-object](https://github.com/jonschlinkert/is-plain-object) if you want only objects that are created by the `Object` constructor.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install isobject\n```\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install isobject\n```\n\n## Usage\n\n```js\nvar isObject = require('isobject');\n```\n\n**True**\n\nAll of the following return `true`:\n\n```js\nisObject({});\nisObject(Object.create({}));\nisObject(Object.create(Object.prototype));\nisObject(Object.create(null));\nisObject({});\nisObject(new Foo);\nisObject(/foo/);\n```\n\n**False**\n\nAll of the following return `false`:\n\n```js\nisObject();\nisObject(function () {});\nisObject(1);\nisObject([]);\nisObject(undefined);\nisObject(null);\n```\n\n## About\n\n### Related projects\n\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 29 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 4 | [doowb](https://github.com/doowb) | \n| 1 | [magnudae](https://github.com/magnudae) | \n| 1 | [LeSuisse](https://github.com/LeSuisse) | \n| 1 | [tmcw](https://github.com/tmcw) | \n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 30, 2017._\n# cross-spawn\n\n[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Build status][appveyor-image]][appveyor-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url]\n\n[npm-url]:https://npmjs.org/package/cross-spawn\n[downloads-image]:http://img.shields.io/npm/dm/cross-spawn.svg\n[npm-image]:http://img.shields.io/npm/v/cross-spawn.svg\n[travis-url]:https://travis-ci.org/IndigoUnited/node-cross-spawn\n[travis-image]:http://img.shields.io/travis/IndigoUnited/node-cross-spawn/master.svg\n[appveyor-url]:https://ci.appveyor.com/project/satazor/node-cross-spawn\n[appveyor-image]:https://img.shields.io/appveyor/ci/satazor/node-cross-spawn/master.svg\n[david-dm-url]:https://david-dm.org/IndigoUnited/node-cross-spawn\n[david-dm-image]:https://img.shields.io/david/IndigoUnited/node-cross-spawn.svg\n[david-dm-dev-url]:https://david-dm.org/IndigoUnited/node-cross-spawn#info=devDependencies\n[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/node-cross-spawn.svg\n\nA cross platform solution to node's spawn and spawnSync.\n\n## Installation\n\n`$ npm install cross-spawn`\n\nIf you are using `spawnSync` on node 0.10 or older, you will also need to install `spawn-sync`:\n\n`$ npm install spawn-sync`\n\n## Why\n\nNode has issues when using spawn on Windows:\n\n- It ignores [PATHEXT](https://github.com/joyent/node/issues/2318)\n- It does not support [shebangs](http://pt.wikipedia.org/wiki/Shebang)\n- It does not allow you to run `del` or `dir`\n- It does not properly escape arguments with spaces or special characters\n\nAll these issues are handled correctly by `cross-spawn`.\nThere are some known modules, such as [win-spawn](https://github.com/ForbesLindesay/win-spawn), that try to solve this but they are either broken or provide faulty escaping of shell arguments.\n\n## Usage\n\nExactly the same way as node's [`spawn`](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options) or [`spawnSync`](https://nodejs.org/api/child_process.html#child_process_child_process_spawnsync_command_args_options), so it's a drop in replacement.\n\n```javascript\nvar spawn = require('cross-spawn');\n\n// Spawn NPM asynchronously\nvar child = spawn('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });\n\n// Spawn NPM synchronously\nvar results = spawn.sync('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });\n```\n\n## Tests\n\n`$ npm test`\n\n## License\n\nReleased under the [MIT License](http://www.opensource.org/licenses/mit-license.php).\n# signal-exit\n\n[](https://travis-ci.org/tapjs/signal-exit)\n[](https://coveralls.io/r/tapjs/signal-exit?branch=master)\n[](https://www.npmjs.com/package/signal-exit)\n[](https://ci.appveyor.com/project/bcoe/signal-exit)\n[](https://github.com/conventional-changelog/standard-version)\n\nWhen you want to fire an event no matter how a process exits:\n\n* reaching the end of execution.\n* explicitly having `process.exit(code)` called.\n* having `process.kill(pid, sig)` called.\n* receiving a fatal signal from outside the process\n\nUse `signal-exit`.\n\n```js\nvar onExit = require('signal-exit')\n\nonExit(function (code, signal) {\n console.log('process exited!')\n})\n```\n\n## API\n\n`var remove = onExit(function (code, signal) {}, options)`\n\nThe return value of the function is a function that will remove the\nhandler.\n\nNote that the function *only* fires for signals if the signal would\ncause the proces to exit. That is, there are no other listeners, and\nit is a fatal signal.\n\n## Options\n\n* `alwaysLast`: Run this handler after any other signal or exit\n handlers. This causes `process.emit` to be monkeypatched.\n# abbrev-js\n\nJust like [ruby's Abbrev](http://apidock.com/ruby/Abbrev).\n\nUsage:\n\n var abbrev = require(\"abbrev\");\n abbrev(\"foo\", \"fool\", \"folding\", \"flop\");\n \n // returns:\n { fl: 'flop'\n , flo: 'flop'\n , flop: 'flop'\n , fol: 'folding'\n , fold: 'folding'\n , foldi: 'folding'\n , foldin: 'folding'\n , folding: 'folding'\n , foo: 'foo'\n , fool: 'fool'\n }\n\nThis is handy for command-line scripts, or other cases where you want to be able to accept shorthands.\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\n# EVP\\_BytesToKey\n[](https://www.npmjs.org/package/evp_bytestokey)\n[](https://travis-ci.org/crypto-browserify/EVP_BytesToKey)\n[](https://david-dm.org/crypto-browserify/EVP_BytesToKey#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nThe insecure [key derivation algorithm from OpenSSL.][1]\n\n**WARNING: DO NOT USE, except for compatibility reasons.**\n\nMD5 is insecure.\n\nUse at least `scrypt` or `pbkdf2-hmac-sha256` instead.\n\n## API\n`EVP_BytesToKey(password, salt, keyLen, ivLen)`\n\n* `password` - `Buffer`, password used to derive the key data.\n* `salt` - 8 byte `Buffer` or `null`, salt is used as a salt in the derivation.\n* `keyBits` - `number`, key length in **bits**.\n* `ivLen` - `number`, iv length in bytes.\n\n*Returns*: `{ key: Buffer, iv: Buffer }`\n\n## Examples\nMD5 with `aes-256-cbc`:\n\n```js\nconst crypto = require('crypto')\nconst EVP_BytesToKey = require('evp_bytestokey')\n\nconst result = EVP_BytesToKey(\n 'my-secret-password',\n null,\n 32,\n 16\n)\n// =>\n// { key: <Buffer e3 4f 96 f3 86 24 82 7c c2 5d ff 23 18 6f 77 72 54 45 7f 49 d4 be 4b dd 4f 6e 1b cc 92 a4 27 33>,\n// iv: <Buffer 85 71 9a bf ae f4 1e 74 dd 46 b6 13 79 56 f5 5b> }\n\nconst cipher = crypto.createCipheriv('aes-256-cbc', result.key, result.iv)\n```\n\n## LICENSE [MIT](LICENSE)\n\n[1]: https://wiki.openssl.org/index.php/Manual:EVP_BytesToKey(3)\n[2]: https://nodejs.org/api/crypto.html#crypto_class_hash\n# node-is-arrayish [](https://travis-ci.org/Qix-/node-is-arrayish) [](https://coveralls.io/r/Qix-/node-is-arrayish)\n> Determines if an object can be used like an Array\n\n## Example\n```javascript\nvar isArrayish = require('is-arrayish');\n\nisArrayish([]); // true\nisArrayish({__proto__: []}); // true\nisArrayish({}); // false\nisArrayish({length:10}); // false\n```\n\n## License\nLicensed under the [MIT License](http://opensource.org/licenses/MIT).\nYou can find a copy of it in [LICENSE](LICENSE).\n# cliui\n\n[](https://travis-ci.org/yargs/cliui)\n[](https://coveralls.io/r/yargs/cliui?branch=)\n[](https://www.npmjs.com/package/cliui)\n[](https://github.com/conventional-changelog/standard-version)\n\neasily create complex multi-column command-line-interfaces.\n\n## Example\n\n```js\nvar ui = require('cliui')()\n\nui.div('Usage: $0 [command] [options]')\n\nui.div({\n text: 'Options:',\n padding: [2, 0, 2, 0]\n})\n\nui.div(\n {\n text: \"-f, --file\",\n width: 20,\n padding: [0, 4, 0, 4]\n },\n {\n text: \"the file to load.\" +\n chalk.green(\"(if this description is long it wraps).\")\n ,\n width: 20\n },\n {\n text: chalk.red(\"[required]\"),\n align: 'right'\n }\n)\n\nconsole.log(ui.toString())\n```\n\n<img width=\"500\" src=\"screenshot.png\">\n\n## Layout DSL\n\ncliui exposes a simple layout DSL:\n\nIf you create a single `ui.row`, passing a string rather than an\nobject:\n\n* `\\n`: characters will be interpreted as new rows.\n* `\\t`: characters will be interpreted as new columns.\n* `\\s`: characters will be interpreted as padding.\n\n**as an example...**\n\n```js\nvar ui = require('./')({\n width: 60\n})\n\nui.div(\n 'Usage: node ./bin/foo.js\\n' +\n ' <regex>\\t provide a regex\\n' +\n ' <glob>\\t provide a glob\\t [required]'\n)\n\nconsole.log(ui.toString())\n```\n\n**will output:**\n\n```shell\nUsage: node ./bin/foo.js\n <regex> provide a regex\n <glob> provide a glob [required]\n```\n\n## Methods\n\n```js\ncliui = require('cliui')\n```\n\n### cliui({width: integer})\n\nSpecify the maximum width of the UI being generated.\nIf no width is provided, cliui will try to get the current window's width and use it, and if that doesn't work, width will be set to `80`.\n\n### cliui({wrap: boolean})\n\nEnable or disable the wrapping of text in a column.\n\n### cliui.div(column, column, column)\n\nCreate a row with any number of columns, a column\ncan either be a string, or an object with the following\noptions:\n\n* **text:** some text to place in the column.\n* **width:** the width of a column.\n* **align:** alignment, `right` or `center`.\n* **padding:** `[top, right, bottom, left]`.\n* **border:** should a border be placed around the div?\n\n### cliui.span(column, column, column)\n\nSimilar to `div`, except the next row will be appended without\na new line being created.\n\n### cliui.resetOutput()\n\nResets the UI elements of the current cliui instance, maintaining the values\nset for `width` and `wrap`.\n# snapdragon [](https://www.npmjs.com/package/snapdragon) [](https://npmjs.org/package/snapdragon) [](https://travis-ci.org/jonschlinkert/snapdragon)\n\n> Fast, pluggable and easy-to-use parser-renderer factory.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save snapdragon\n```\n\nCreated by [jonschlinkert](https://github.com/jonschlinkert) and [doowb](https://github.com/doowb).\n\n**Features**\n\n* Bootstrap your own parser, get sourcemap support for free\n* All parsing and compiling is handled by simple, reusable middleware functions\n* Inspired by the parsers in [pug](http://jade-lang.com) and [css](https://github.com/reworkcss/css).\n\n## History\n\n### v0.5.0\n\n**Breaking changes**\n\nSubstantial breaking changes were made in v0.5.0! Most of these changes are part of a larger refactor that will be finished in 0.6.0, including the introduction of a `Lexer` class.\n\n* Renderer was renamed to `Compiler`\n* the `.render` method was renamed to `.compile`\n* Many other smaller changes. A more detailed overview will be provided in 0.6.0. If you don't have to time review code, I recommend you wait for the 0.6.0 release.\n\n## Usage examples\n\n```js\nvar Snapdragon = require('snapdragon');\nvar snapdragon = new Snapdragon();\n```\n\n**Parse**\n\n```js\nvar ast = snapdragon.parser('some string', options)\n // parser middleware that can be called by other middleware\n .set('foo', function () {})\n // parser middleware, runs immediately in the order defined\n .use(bar())\n .use(baz())\n```\n\n**Render**\n\n```js\n// pass the `ast` from the parse method\nvar res = snapdragon.compiler(ast)\n // compiler middleware, called when the name of the middleware\n // matches the `node.type` (defined in a parser middleware)\n .set('bar', function () {})\n .set('baz', function () {})\n .compile()\n```\n\nSee the [examples](./examples/).\n\n## Getting started\n\n**Parsers**\n\nParsers are middleware functions used for parsing a string into an ast node.\n\n```js\nvar ast = snapdragon.parser(str, options)\n .use(function() {\n var pos = this.position();\n var m = this.match(/^\\./);\n if (!m) return;\n return pos({\n // `type` specifies the compiler to use\n type: 'dot',\n val: m[0]\n });\n })\n```\n\n**AST node**\n\nWhen the parser finds a match, `pos()` is called, pushing a token for that node onto the ast that looks something like:\n\n```js\n{ type: 'dot',\n val: '.',\n position:\n { start: { lineno: 1, column: 1 },\n end: { lineno: 1, column: 2 } }}\n```\n\n**Renderers**\n\nRenderers are _named_ middleware functions that visit over an array of ast nodes to compile a string.\n\n```js\nvar res = snapdragon.compiler(ast)\n .set('dot', function (node) {\n console.log(node.val)\n //=> '.'\n return this.emit(node.val);\n })\n```\n\n**Source maps**\n\nIf you want source map support, make sure to emit the position as well.\n\n```js\nvar res = snapdragon.compiler(ast)\n .set('dot', function (node) {\n return this.emit(node.val, node.position);\n })\n```\n\n## Docs\n\n### Parser middleware\n\nA parser middleware is a function that returns an abject called a `token`. This token is pushed onto the AST as a node.\n\n**Example token**\n\n```js\n{ type: 'dot',\n val: '.',\n position:\n { start: { lineno: 1, column: 1 },\n end: { lineno: 1, column: 2 } }}\n```\n\n**Example parser middleware**\n\nMatch a single `.` in a string:\n\n1. Get the starting position by calling `this.position()`\n2. pass a regex for matching a single dot to the `.match` method\n3. if **no match** is found, return `undefined`\n4. if a **match** is found, `pos()` is called, which returns a token with:\n - `type`: the name of the [compiler] to use\n - `val`: The actual value captured by the regex. In this case, a `.`. Note that you can capture and return whatever will be needed by the corresponding [compiler].\n - The ending position: automatically calculated by adding the length of the first capture group to the starting position.\n\n## Renderer middleware\n\nRenderers are run when the name of the compiler middleware matches the `type` defined on an ast `node` (which is defined in a parser).\n\n**Example**\n\nExercise: Parse a dot, then compile it as an escaped dot.\n\n```js\nvar ast = snapdragon.parser('.')\n .use(function () {\n var pos = this.position();\n var m = this.match(/^\\./);\n if (!m) return;\n return pos({\n // define the `type` of compiler to use\n type: 'dot',\n val: m[0]\n })\n })\n\nvar result = snapdragon.compiler(ast)\n .set('dot', function (node) {\n return this.emit('\\\\' + node.val);\n })\n .compile()\n\nconsole.log(result.output);\n//=> '\\.'\n```\n\n## API\n\n### [Parser](lib/parser.js#L19)\n\nCreate a new `Parser` with the given `input` and `options`.\n\n**Params**\n\n* `input` **{String}**\n* `options` **{Object}**\n\n### [.define](lib/parser.js#L103)\n\nDefine a non-enumberable property on the `Parser` instance.\n\n**Example**\n\n```js\nparser.define('foo', 'bar');\n```\n\n**Params**\n\n* `key` **{String}**: propery name\n* `val` **{any}**: property value\n* `returns` **{Object}**: Returns the Parser instance for chaining.\n\nSet parser `name` with the given `fn`\n\n**Params**\n\n* `name` **{String}**\n* `fn` **{Function}**\n\nGet parser `name`\n\n**Params**\n\n* `name` **{String}**\n\nPush a `token` onto the `type` stack.\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Object}** `token`\n\nPop a token off of the `type` stack\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Object}**: Returns a token\n\nReturn true if inside a `stack` node. Types are `braces`, `parens` or `brackets`.\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nparser.isType(node, 'brace');\n```\n\n**Params**\n\n* `node` **{Object}**\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n### [.define](lib/compiler.js#L71)\n\nDefine a non-enumberable property on the `Compiler` instance.\n\n**Example**\n\n```js\ncompiler.define('foo', 'bar');\n```\n\n**Params**\n\n* `key` **{String}**: propery name\n* `val` **{any}**: property value\n* `returns` **{Object}**: Returns the Compiler instance for chaining.\n\n## About\n\n### Related projects\n\n* [braces](https://www.npmjs.com/package/braces): Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces \"Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces specification.\")\n* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets \"Expand POSIX bracket expressions (character classes) in glob patterns.\")\n* [extglob](https://www.npmjs.com/package/extglob): Convert extended globs to regex-compatible strings. Add (almost) the expressive power of regular expressions to… [more](https://github.com/jonschlinkert/extglob) | [homepage](https://github.com/jonschlinkert/extglob \"Convert extended globs to regex-compatible strings. Add (almost) the expressive power of regular expressions to glob patterns.\")\n* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch \"Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor**<br/> | \n| --- | --- |\n| 106 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [doowb](https://github.com/doowb) |\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/snapdragon/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 10, 2016._\n# fast-deep-equal\nThe fastest deep equal\n\n[](https://travis-ci.org/epoberezkin/fast-deep-equal)\n[](http://badge.fury.io/js/fast-deep-equal)\n[](https://coveralls.io/github/epoberezkin/fast-deep-equal?branch=master)\n\n## Install\n\n```bash\nnpm install fast-deep-equal\n```\n\n## Features\n\n- ES5 compatible\n- works in node.js (0.10+) and browsers (IE9+)\n- checks equality of Date and RegExp objects by value.\n\n## Usage\n\n```javascript\nvar equal = require('fast-deep-equal');\nconsole.log(equal({foo: 'bar'}, {foo: 'bar'})); // true\n```\n\n## Performance benchmark\n\nNode.js v9.11.1:\n\n```\nfast-deep-equal x 226,960 ops/sec ±1.55% (86 runs sampled)\nnano-equal x 218,210 ops/sec ±0.79% (89 runs sampled)\nshallow-equal-fuzzy x 206,762 ops/sec ±0.84% (88 runs sampled)\nunderscore.isEqual x 128,668 ops/sec ±0.75% (91 runs sampled)\nlodash.isEqual x 44,895 ops/sec ±0.67% (85 runs sampled)\ndeep-equal x 51,616 ops/sec ±0.96% (90 runs sampled)\ndeep-eql x 28,218 ops/sec ±0.42% (85 runs sampled)\nassert.deepStrictEqual x 1,777 ops/sec ±1.05% (86 runs sampled)\nramda.equals x 13,466 ops/sec ±0.82% (86 runs sampled)\nThe fastest is fast-deep-equal\n```\n\nTo run benchmark (requires node.js 6+):\n\n```bash\nnpm install\nnode benchmark\n```\n\n## License\n\n[MIT](https://github.com/epoberezkin/fast-deep-equal/blob/master/LICENSE)\n# lodash.clonedeep v4.5.0\n\nThe [lodash](https://lodash.com/) method `_.cloneDeep` exported as a [Node.js](https://nodejs.org/) module.\n\n## Installation\n\nUsing npm:\n```bash\n$ {sudo -H} npm i -g npm\n$ npm i --save lodash.clonedeep\n```\n\nIn Node.js:\n```js\nvar cloneDeep = require('lodash.clonedeep');\n```\n\nSee the [documentation](https://lodash.com/docs#cloneDeep) or [package source](https://github.com/lodash/lodash/blob/4.5.0-npm-packages/lodash.clonedeep) for more details.\n# minipass\n\nA _very_ minimal implementation of a [PassThrough\nstream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)\n\n[It's very\nfast](https://docs.google.com/spreadsheets/d/1oObKSrVwLX_7Ut4Z6g3fZW-AX1j1-k6w-cDsrkaSbHM/edit#gid=0)\nfor objects, strings, and buffers.\n\nSupports pipe()ing (including multi-pipe() and backpressure\ntransmission), buffering data until either a `data` event handler or\n`pipe()` is added (so you don't lose the first chunk), and most other\ncases where PassThrough is a good idea.\n\nThere is a `read()` method, but it's much more efficient to consume\ndata from this stream via `'data'` events or by calling `pipe()` into\nsome other stream. Calling `read()` requires the buffer to be\nflattened in some cases, which requires copying memory.\n\nThere is also no `unpipe()` method. Once you start piping, there is\nno stopping it!\n\nIf you set `objectMode: true` in the options, then whatever is written\nwill be emitted. Otherwise, it'll do a minimal amount of Buffer\ncopying to ensure proper Streams semantics when `read(n)` is called.\n\nThis is not a `through` or `through2` stream. It doesn't transform\nthe data, it just passes it right through. If you want to transform\nthe data, extend the class, and override the `write()` method. Once\nyou're done transforming the data however you want, call\n`super.write()` with the transform output.\n\nFor an example of a stream that extends MiniPass to provide transform\ncapabilities, check out [minizlib](http://npm.im/minizlib).\n\n## USAGE\n\n```js\nconst MiniPass = require('minipass')\nconst mp = new MiniPass(options) // optional: { encoding }\nmp.write('foo')\nmp.pipe(someOtherStream)\nmp.end('bar')\n```\n\n### collecting\n\n```js\nmp.collect().then(all => {\n // all is an array of all the data emitted\n // encoding is supported in this case, so\n // so the result will be a collection of strings if\n // an encoding is specified, or buffers/objects if not.\n //\n // In an async function, you may do\n // const data = await stream.collect()\n})\n```\n\n### iteration\n\nYou can iterate over streams synchronously or asynchronously in\nplatforms that support it.\n\nSynchronous iteration will end when the currently available data is\nconsumed, even if the `end` event has not been reached. In string and\nbuffer mode, the data is concatenated, so unless multiple writes are\noccurring in the same tick as the `read()`, sync iteration loops will\ngenerally only have a single iteration.\n\nTo consume chunks in this way exactly as they have been written, with\nno flattening, create the stream with the `{ objectMode: true }`\noption.\n\n```js\nconst mp = new Minipass({ objectMode: true })\nmp.write('a')\nmp.write('b')\nfor (let letter of mp) {\n console.log(letter) // a, b\n}\nmp.write('c')\nmp.write('d')\nfor (let letter of mp) {\n console.log(letter) // c, d\n}\nmp.write('e')\nmp.end()\nfor (let letter of mp) {\n console.log(letter) // e\n}\nfor (let letter of mp) {\n console.log(letter) // nothing\n}\n```\n\nAsynchronous iteration will continue until the end event is reached,\nconsuming all of the data.\n\n```js\nconst mp = new Minipass({ encoding: 'utf8' })\n\n// some source of some data\nlet i = 5\nconst inter = setInterval(() => {\n if (i --> 0)\n mp.write(Buffer.from('foo\\n', 'utf8'))\n else {\n mp.end()\n clearInterval(inter)\n }\n}, 100)\n\n// consume the data with asynchronous iteration\nasync function consume () {\n for await (let chunk of mp) {\n console.log(chunk)\n }\n return 'ok'\n}\n\nconsume().then(res => console.log(res))\n// logs `foo\\n` 5 times, and then `ok`\n```\n# run-queue\n\nA promise based, dynamic priority queue runner, with concurrency limiting.\n\n```js\nconst RunQueue = require('run-queue')\n\nconst queue = new RunQueue({\n maxConcurrency: 1\n})\n\nqueue.add(1, example, [-1])\nfor (let ii = 0; ii < 5; ++ii) {\n queue.add(0, example, [ii])\n}\nconst finished = []\nqueue.run().then(\n console.log(finished)\n})\n\nfunction example (num, next) {\n setTimeout(() => {\n finished.push(num)\n next()\n }, 5 - Math.abs(num))\n}\n```\n\nwould output\n\n```\n[ 0, 1, 2, 3, 4, -1 ]\n```\n\nIf you bump concurrency to `2`, then you get:\n\n```\n[ 1, 0, 3, 2, 4, -1 ]\n```\n\nThe concurrency means that they don't finish in order, because some take\nlonger than others. Each priority level must finish entirely before the\nnext priority level is run. See\n[PRIORITIES](https://github.com/iarna/run-queue#priorities) below. This is\neven true if concurrency is set high enough that all of the regular queue\ncan execute at once, for instance, with `maxConcurrency: 10`:\n\n```\n[ 4, 3, 2, 1, 0, -1 ]\n```\n\n## API\n\n### const queue = new RunQueue(options)\n\nCreate a new queue. Options may contain:\n\n* maxConcurrency - (Default: `1`) The maximum number of jobs to execute at once.\n* Promise - (Default: global.Promise) The promise implementation to use.\n\n### queue.add (prio, fn, args)\n\nAdd a new job to the end of the queue at priority `prio` that will run `fn`\nwith `args`. If `fn` is async then it should return a Promise.\n\n### queue.run ()\n\nStart running the job queue. Returns a Promise that resolves when either\nall the jobs are complete or a job ends in error (throws or returns a\nrejected promise). If a job ended in error then this Promise will be rejected\nwith that error and no further queue running will be done.\n\n## PRIORITIES\n\nPriorities are any integer value >= 0.\n\nLowest is executed first.\n\nPriorities essentially represent distinct job queues. All jobs in a queue\nmust complete before the next highest priority job queue is executed.\n\nThis means that if you have two queues, `0` and `1` then ALL jobs in `0`\nmust complete before ANY execute in `1`. If you add new `0` level jobs\nwhile `1` level jobs are running then it will switch back processing the `0`\nqueue and won't execute any more `1` jobs till all of the new `0` jobs\ncomplete.\n# dns-packet\n\nAn [abstract-encoding](https://github.com/mafintosh/abstract-encoding) compliant module for encoding / decoding DNS packets.\nLifted out of [multicast-dns](https://github.com/mafintosh/multicast-dns) as a separate module.\n\n```\nnpm install dns-packet\n```\n\n[](https://travis-ci.org/mafintosh/dns-packet)\n\n## Usage\n\n``` js\nvar packet = require('dns-packet')\nvar dgram = require('dgram')\n\nvar socket = dgram.createSocket('udp4')\n\nvar buf = packet.encode({\n type: 'query',\n id: 1,\n flags: packet.RECURSION_DESIRED,\n questions: [{\n type: 'A',\n name: 'google.com'\n }]\n})\n\nsocket.on('message', function (message) {\n console.log(packet.decode(message)) // prints out a response from google dns\n})\n\nsocket.send(buf, 0, buf.length, 53, '8.8.8.8')\n```\n\n## API\n\n#### `var buf = packets.encode(packet, [buf], [offset])`\n\nEncodes a DNS packet into a buffer.\n\n#### `var packet = packets.decode(buf, [offset])`\n\nDecode a DNS packet from a buffer\n\n#### `var len = packets.encodingLength(packet)`\n\nReturns how many bytes are needed to encode the DNS packet\n\n## Packets\n\nPackets look like this\n\n``` js\n{\n type: 'query|response',\n id: optionalIdNumber,\n flags: optionalBitFlags,\n questions: [...],\n answers: [...],\n additionals: [...],\n authorities: [...]\n}\n```\n\nThe bit flags available are\n\n``` js\npacket.RECURSION_DESIRED\npacket.RECURSION_AVAILABLE\npacket.TRUNCATED_RESPONSE\npacket.AUTHORITATIVE_ANSWER\npacket.AUTHENTIC_DATA\npacket.CHECKING_DISABLED\n```\n\nTo use more than one flag bitwise-or them together\n\n``` js\nvar flags = packet.RECURSION_DESIRED | packet.RECURSION_AVAILABLE\n```\n\nAnd to check for a flag use bitwise-and\n\n``` js\nvar isRecursive = message.flags & packet.RECURSION_DESIRED\n```\n\nA question looks like this\n\n``` js\n{\n type: 'A', // or SRV, AAAA, etc\n name: 'google.com' // which record are you looking for\n}\n```\n\nAnd an answers, additional, or authority looks like this\n\n``` js\n{\n type: 'A', // or SRV, AAAA, etc\n name: 'google.com', // which name is this record for\n ttl: optionalTimeToLiveInSeconds,\n (record specific data, see below)\n}\n```\n\nCurrently the different available records are\n\n#### `A`\n\n``` js\n{\n data: 'IPv4 address' // fx 127.0.0.1\n}\n```\n\n#### `AAAA`\n\n``` js\n{\n data: 'IPv6 address' // fx fe80::1\n}\n```\n\n#### `TXT`\n\n``` js\n{\n data: Buffer('some text')\n}\n```\n\n#### `NS`\n\n``` js\n{\n data: nameServer\n}\n```\n\n#### `NULL`\n\n``` js\n{\n data: Buffer('any binary data')\n}\n```\n\n#### `SOA`\n\n``` js\n{\n data:\n {\n mname: domainName,\n rname: mailbox,\n serial: zoneSerial,\n refresh: refreshInterval,\n retry: retryInterval,\n expire: expireInterval,\n minimum: minimumTTL\n }\n}\n```\n\n#### `SRV`\n\n``` js\n{\n data: {\n port: servicePort,\n target: serviceHostName,\n priority: optionalServicePriority,\n weight: optionalServiceWeight\n }\n}\n```\n\n#### `HINFO`\n\n``` js\n{\n data: {\n cpu: 'cpu info',\n os: 'os info'\n }\n}\n```\n\n#### `PTR`\n\n``` js\n{\n data: 'points.to.another.record'\n}\n```\n\n#### `CNAME`\n\n``` js\n{\n data: 'cname.to.another.record'\n}\n```\n\n#### `DNAME`\n\n``` js\n{\n data: 'dname.to.another.record'\n}\n```\n\n#### `CAA`\n\n``` js\n{\n flags: 128, // octet\n tag: 'issue|issuewild|iodef',\n value: 'ca.example.net'\n}\n```\n\nIf you need another one, open an issue and we'll try to add it.\n\n## License\n\nMIT\n# multicast-dns-service-types\n\nParse and stringify mdns service types\n\n```\nnpm install multicast-dns-service-types\n```\n\n[](http://travis-ci.org/mafintosh/multicast-dns-service-types)\n\n## Usage\n\n``` js\nvar types = require('multicast-dns-service-types')\n\nconsole.log(types.stringify({name: 'http', protocol: 'tcp', subtypes: ['sub1', 'sub2']})) // _http._tcp._sub1._sub2\nconsole.log(types.parse('_http._tcp._sub1._sub2')) // {name: 'http', protocol: 'tcp', subtypes: ['sub1', 'sub2']}\n```\n\nThe following shorthands also exist\n\n``` js\ntypes.stringify(name, protocol, subtypes)\ntypes.tcp(name, subtypes) // set protocol to tcp\ntypes.udp(name, subtypes) // set protocol to udp\n```\n\n## License\n\nMIT\nterser\n======\n\n\n\nA JavaScript parser and mangler/compressor toolkit for ES6+.\n\n*note*: You can support this project on patreon: <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.patreon.com/fabiosantoscode\"><img src=\"https://c5.patreon.com/external/logo/become_a_patron_button@2x.png\" alt=\"patron\" width=\"100px\" height=\"auto\"></a>. Check out PATRONS.md for our first-tier patrons.\n\nTerser recommends you use RollupJS to bundle your modules, as that produces smaller code overall.\n\n*Beautification* has been undocumented and is *being removed* from terser, we recommend you use [prettier](https://npmjs.com/package/prettier).\n\n[](https://travis-ci.org/terser-js/terser)\n\nFind the changelog in [CHANGELOG.md](https://github.com/terser-js/terser/blob/master/CHANGELOG.md)\n\nA JavaScript parser, mangler/compressor and beautifier toolkit for ES6+.\n\nWhy choose terser?\n------------------\n\n`uglify-es` is [no longer maintained](https://github.com/mishoo/UglifyJS2/issues/3156#issuecomment-392943058) and `uglify-js` does not support ES6+.\n\n**`terser`** is a fork of `uglify-es` that retains API and CLI compatibility\nwith `uglify-es` and `uglify-js@3`.\n\nInstall\n-------\n\nFirst make sure you have installed the latest version of [node.js](http://nodejs.org/)\n(You may need to restart your computer after this step).\n\nFrom NPM for use as a command line app:\n\n npm install terser -g\n\nFrom NPM for programmatic use:\n\n npm install terser\n \n# Command line usage\n\n terser [input files] [options]\n\nTerser can take multiple input files. It's recommended that you pass the\ninput files first, then pass the options. Terser will parse input files\nin sequence and apply any compression options. The files are parsed in the\nsame global scope, that is, a reference from a file to some\nvariable/function declared in another file will be matched properly.\n\nIf no input file is specified, Terser will read from STDIN.\n\nIf you wish to pass your options before the input files, separate the two with\na double dash to prevent input files being used as option arguments:\n\n terser --compress --mangle -- input.js\n\n### Command line options\n\n```\n -h, --help Print usage information.\n `--help options` for details on available options.\n -V, --version Print version number.\n -p, --parse <options> Specify parser options:\n `acorn` Use Acorn for parsing.\n `bare_returns` Allow return outside of functions.\n Useful when minifying CommonJS\n modules and Userscripts that may\n be anonymous function wrapped (IIFE)\n by the .user.js engine `caller`.\n `expression` Parse a single expression, rather than\n a program (for parsing JSON).\n `spidermonkey` Assume input files are SpiderMonkey\n AST format (as JSON).\n -c, --compress [options] Enable compressor/specify compressor options:\n `pure_funcs` List of functions that can be safely\n removed when their return values are\n not used.\n -m, --mangle [options] Mangle names/specify mangler options:\n `reserved` List of names that should not be mangled.\n --mangle-props [options] Mangle properties/specify mangler options:\n `builtins` Mangle property names that overlaps\n with standard JavaScript globals.\n `debug` Add debug prefix and suffix.\n `domprops` Mangle property names that overlaps\n with DOM properties.\n `keep_quoted` Only mangle unquoted properties.\n `regex` Only mangle matched property names.\n `reserved` List of names that should not be mangled.\n -b, --beautify [options] Specify output options:\n `preamble` Preamble to prepend to the output. You\n can use this to insert a comment, for\n example for licensing information.\n This will not be parsed, but the source\n map will adjust for its presence.\n `quote_style` Quote style:\n 0 - auto\n 1 - single\n 2 - double\n 3 - original\n `wrap_iife` Wrap IIFEs in parenthesis. Note: you may\n want to disable `negate_iife` under\n compressor options.\n -o, --output <file> Output file path (default STDOUT). Specify `ast` or\n `spidermonkey` to write Terser or SpiderMonkey AST\n as JSON to STDOUT respectively.\n --comments [filter] Preserve copyright comments in the output. By\n default this works like Google Closure, keeping\n JSDoc-style comments that contain \"@license\" or\n \"@preserve\". You can optionally pass one of the\n following arguments to this flag:\n - \"all\" to keep all comments\n - a valid JS RegExp like `/foo/` or `/^!/` to\n keep only matching comments.\n Note that currently not *all* comments can be\n kept when compression is on, because of dead\n code removal or cascading statements into\n sequences.\n --config-file <file> Read `minify()` options from JSON file.\n -d, --define <expr>[=value] Global definitions.\n --ecma <version> Specify ECMAScript release: 5, 6, 7 or 8.\n -e, --enclose [arg[:value]] Embed output in a big function with configurable\n arguments and values.\n --ie8 Support non-standard Internet Explorer 8.\n Equivalent to setting `ie8: true` in `minify()`\n for `compress`, `mangle` and `output` options.\n By default Terser will not try to be IE-proof.\n --keep-classnames Do not mangle/drop class names.\n --keep-fnames Do not mangle/drop function names. Useful for\n code relying on Function.prototype.name.\n --module Input is an ES6 module. If `compress` or `mangle` is\n enabled then the `toplevel` option will be enabled.\n --name-cache <file> File to hold mangled name mappings.\n --safari10 Support non-standard Safari 10/11.\n Equivalent to setting `safari10: true` in `minify()`\n for `mangle` and `output` options.\n By default `terser` will not work around\n Safari 10/11 bugs.\n --source-map [options] Enable source map/specify source map options:\n `base` Path to compute relative paths from input files.\n `content` Input source map, useful if you're compressing\n JS that was generated from some other original\n code. Specify \"inline\" if the source map is\n included within the sources.\n `filename` Name and/or location of the output source.\n `includeSources` Pass this flag if you want to include\n the content of source files in the\n source map as sourcesContent property.\n `root` Path to the original source to be included in\n the source map.\n `url` If specified, path to the source map to append in\n `//# sourceMappingURL`.\n --timings Display operations run time on STDERR.\n --toplevel Compress and/or mangle variables in top level scope.\n --verbose Print diagnostic messages.\n --warn Print warning messages.\n --wrap <name> Embed everything in a big function, making the\n “exports” and “global” variables available. You\n need to pass an argument to this option to\n specify the name that your module will take\n when included in, say, a browser.\n```\n\nSpecify `--output` (`-o`) to declare the output file. Otherwise the output\ngoes to STDOUT.\n\n## CLI source map options\n\nTerser can generate a source map file, which is highly useful for\ndebugging your compressed JavaScript. To get a source map, pass\n`--source-map --output output.js` (source map will be written out to\n`output.js.map`).\n\nAdditional options:\n\n- `--source-map \"filename='<NAME>'\"` to specify the name of the source map.\n\n- `--source-map \"root='<URL>'\"` to pass the URL where the original files can be found.\n\n- `--source-map \"url='<URL>'\"` to specify the URL where the source map can be found.\n Otherwise Terser assumes HTTP `X-SourceMap` is being used and will omit the\n `//# sourceMappingURL=` directive.\n\nFor example:\n\n terser js/file1.js js/file2.js \\\n -o foo.min.js -c -m \\\n --source-map \"root='http://foo.com/src',url='foo.min.js.map'\"\n\nThe above will compress and mangle `file1.js` and `file2.js`, will drop the\noutput in `foo.min.js` and the source map in `foo.min.js.map`. The source\nmapping will refer to `http://foo.com/src/js/file1.js` and\n`http://foo.com/src/js/file2.js` (in fact it will list `http://foo.com/src`\nas the source map root, and the original files as `js/file1.js` and\n`js/file2.js`).\n\n### Composed source map\n\nWhen you're compressing JS code that was output by a compiler such as\nCoffeeScript, mapping to the JS code won't be too helpful. Instead, you'd\nlike to map back to the original code (i.e. CoffeeScript). Terser has an\noption to take an input source map. Assuming you have a mapping from\nCoffeeScript → compiled JS, Terser can generate a map from CoffeeScript →\ncompressed JS by mapping every token in the compiled JS to its original\nlocation.\n\nTo use this feature pass `--source-map \"content='/path/to/input/source.map'\"`\nor `--source-map \"content=inline\"` if the source map is included inline with\nthe sources.\n\n## CLI compress options\n\nYou need to pass `--compress` (`-c`) to enable the compressor. Optionally\nyou can pass a comma-separated list of [compress options](#compress-options).\n\nOptions are in the form `foo=bar`, or just `foo` (the latter implies\na boolean option that you want to set `true`; it's effectively a\nshortcut for `foo=true`).\n\nExample:\n\n terser file.js -c toplevel,sequences=false\n\n## CLI mangle options\n\nTo enable the mangler you need to pass `--mangle` (`-m`). The following\n(comma-separated) options are supported:\n\n- `toplevel` (default `false`) -- mangle names declared in the top level scope.\n\n- `eval` (default `false`) -- mangle names visible in scopes where `eval` or `with` are used.\n\nWhen mangling is enabled but you want to prevent certain names from being\nmangled, you can declare those names with `--mangle reserved` — pass a\ncomma-separated list of names. For example:\n\n terser ... -m reserved=['$','require','exports']\n\nto prevent the `require`, `exports` and `$` names from being changed.\n\n### CLI mangling property names (`--mangle-props`)\n\n**Note:** THIS **WILL** BREAK YOUR CODE. A good rule of thumb is not to use this unless you know exactly what you're doing and how this works and read this section until the end.\n\nMangling property names is a separate step, different from variable name mangling. Pass\n`--mangle-props` to enable it. The least dangerous\nway to use this is to use the `regex` option like so:\n\n```\nterser example.js -c -m --mangle-props regex=/_$/\n```\n\nThis will mangle all properties that start with an \nunderscore. So you can use it to mangle internal methods.\n\nBy default, it will mangle all properties in the\ninput code with the exception of built in DOM properties and properties\nin core JavaScript classes, which is what will break your code if you don't:\n\n1. Control all the code you're mangling\n2. Avoid using a module bundler, as they usually will call Terser on each file individually, making it impossible to pass mangled objects between modules.\n3. Avoid calling functions like `defineProperty` or `hasOwnProperty`, because they refer to object properties using strings and will break your code if you don't know what you are doing.\n\nAn example:\n\n```javascript\n// example.js\nvar x = {\n baz_: 0,\n foo_: 1,\n calc: function() {\n return this.foo_ + this.baz_;\n }\n};\nx.bar_ = 2;\nx[\"baz_\"] = 3;\nconsole.log(x.calc());\n```\nMangle all properties (except for JavaScript `builtins`) (**very** unsafe):\n```bash\n$ terser example.js -c -m --mangle-props\n```\n```javascript\nvar x={o:0,_:1,l:function(){return this._+this.o}};x.t=2,x.o=3,console.log(x.l());\n```\nMangle all properties except for `reserved` properties (still very unsafe):\n```bash\n$ terser example.js -c -m --mangle-props reserved=[foo_,bar_]\n```\n```javascript\nvar x={o:0,foo_:1,_:function(){return this.foo_+this.o}};x.bar_=2,x.o=3,console.log(x._());\n```\nMangle all properties matching a `regex` (not as unsafe but still unsafe):\n```bash\n$ terser example.js -c -m --mangle-props regex=/_$/\n```\n```javascript\nvar x={o:0,_:1,calc:function(){return this._+this.o}};x.l=2,x.o=3,console.log(x.calc());\n```\n\nCombining mangle properties options:\n```bash\n$ terser example.js -c -m --mangle-props regex=/_$/,reserved=[bar_]\n```\n```javascript\nvar x={o:0,_:1,calc:function(){return this._+this.o}};x.bar_=2,x.o=3,console.log(x.calc());\n```\n\nIn order for this to be of any use, we avoid mangling standard JS names by\ndefault (`--mangle-props builtins` to override).\n\nA default exclusion file is provided in `tools/domprops.json` which should\ncover most standard JS and DOM properties defined in various browsers. Pass\n`--mangle-props domprops` to disable this feature.\n\nA regular expression can be used to define which property names should be\nmangled. For example, `--mangle-props regex=/^_/` will only mangle property\nnames that start with an underscore.\n\nWhen you compress multiple files using this option, in order for them to\nwork together in the end we need to ensure somehow that one property gets\nmangled to the same name in all of them. For this, pass `--name-cache filename.json`\nand Terser will maintain these mappings in a file which can then be reused.\nIt should be initially empty. Example:\n\n```bash\n$ rm -f /tmp/cache.json # start fresh\n$ terser file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js\n$ terser file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js\n```\n\nNow, `part1.js` and `part2.js` will be consistent with each other in terms\nof mangled property names.\n\nUsing the name cache is not necessary if you compress all your files in a\nsingle call to Terser.\n\n### Mangling unquoted names (`--mangle-props keep_quoted`)\n\nUsing quoted property name (`o[\"foo\"]`) reserves the property name (`foo`)\nso that it is not mangled throughout the entire script even when used in an\nunquoted style (`o.foo`). Example:\n\n```javascript\n// stuff.js\nvar o = {\n \"foo\": 1,\n bar: 3\n};\no.foo += o.bar;\nconsole.log(o.foo);\n```\n```bash\n$ terser stuff.js --mangle-props keep_quoted -c -m\n```\n```javascript\nvar o={foo:1,o:3};o.foo+=o.o,console.log(o.foo);\n```\n\n### Debugging property name mangling\n\nYou can also pass `--mangle-props debug` in order to mangle property names\nwithout completely obscuring them. For example the property `o.foo`\nwould mangle to `o._$foo$_` with this option. This allows property mangling\nof a large codebase while still being able to debug the code and identify\nwhere mangling is breaking things.\n\n```bash\n$ terser stuff.js --mangle-props debug -c -m\n```\n```javascript\nvar o={_$foo$_:1,_$bar$_:3};o._$foo$_+=o._$bar$_,console.log(o._$foo$_);\n```\n\nYou can also pass a custom suffix using `--mangle-props debug=XYZ`. This would then\nmangle `o.foo` to `o._$foo$XYZ_`. You can change this each time you compile a\nscript to identify how a property got mangled. One technique is to pass a\nrandom number on every compile to simulate mangling changing with different\ninputs (e.g. as you update the input script with new properties), and to help\nidentify mistakes like writing mangled keys to storage.\n\n# API Reference\n\nAssuming installation via NPM, you can load Terser in your application\nlike this:\n```javascript\nvar Terser = require(\"terser\");\n```\nBrowser loading is also supported:\n```html\n<script src=\"node_modules/source-map/dist/source-map.min.js\"></script>\n<script src=\"dist/bundle.min.js\"></script>\n```\n\nThere is a single high level function, **`minify(code, options)`**,\nwhich will perform all minification [phases](#minify-options) in a configurable\nmanner. By default `minify()` will enable the options [`compress`](#compress-options)\nand [`mangle`](#mangle-options). Example:\n```javascript\nvar code = \"function add(first, second) { return first + second; }\";\nvar result = Terser.minify(code);\nconsole.log(result.error); // runtime error, or `undefined` if no error\nconsole.log(result.code); // minified output: function add(n,d){return n+d}\n```\n\nYou can `minify` more than one JavaScript file at a time by using an object\nfor the first argument where the keys are file names and the values are source\ncode:\n```javascript\nvar code = {\n \"file1.js\": \"function add(first, second) { return first + second; }\",\n \"file2.js\": \"console.log(add(1 + 2, 3 + 4));\"\n};\nvar result = Terser.minify(code);\nconsole.log(result.code);\n// function add(d,n){return d+n}console.log(add(3,7));\n```\n\nThe `toplevel` option:\n```javascript\nvar code = {\n \"file1.js\": \"function add(first, second) { return first + second; }\",\n \"file2.js\": \"console.log(add(1 + 2, 3 + 4));\"\n};\nvar options = { toplevel: true };\nvar result = Terser.minify(code, options);\nconsole.log(result.code);\n// console.log(3+7);\n```\n\nThe `nameCache` option:\n```javascript\nvar options = {\n mangle: {\n toplevel: true,\n },\n nameCache: {}\n};\nvar result1 = Terser.minify({\n \"file1.js\": \"function add(first, second) { return first + second; }\"\n}, options);\nvar result2 = Terser.minify({\n \"file2.js\": \"console.log(add(1 + 2, 3 + 4));\"\n}, options);\nconsole.log(result1.code);\n// function n(n,r){return n+r}\nconsole.log(result2.code);\n// console.log(n(3,7));\n```\n\nYou may persist the name cache to the file system in the following way:\n```javascript\nvar cacheFileName = \"/tmp/cache.json\";\nvar options = {\n mangle: {\n properties: true,\n },\n nameCache: JSON.parse(fs.readFileSync(cacheFileName, \"utf8\"))\n};\nfs.writeFileSync(\"part1.js\", Terser.minify({\n \"file1.js\": fs.readFileSync(\"file1.js\", \"utf8\"),\n \"file2.js\": fs.readFileSync(\"file2.js\", \"utf8\")\n}, options).code, \"utf8\");\nfs.writeFileSync(\"part2.js\", Terser.minify({\n \"file3.js\": fs.readFileSync(\"file3.js\", \"utf8\"),\n \"file4.js\": fs.readFileSync(\"file4.js\", \"utf8\")\n}, options).code, \"utf8\");\nfs.writeFileSync(cacheFileName, JSON.stringify(options.nameCache), \"utf8\");\n```\n\nAn example of a combination of `minify()` options:\n```javascript\nvar code = {\n \"file1.js\": \"function add(first, second) { return first + second; }\",\n \"file2.js\": \"console.log(add(1 + 2, 3 + 4));\"\n};\nvar options = {\n toplevel: true,\n compress: {\n global_defs: {\n \"@console.log\": \"alert\"\n },\n passes: 2\n },\n output: {\n beautify: false,\n preamble: \"/* minified */\"\n }\n};\nvar result = Terser.minify(code, options);\nconsole.log(result.code);\n// /* minified */\n// alert(10);\"\n```\n\nTo produce warnings:\n```javascript\nvar code = \"function f(){ var u; return 2 + 3; }\";\nvar options = { warnings: true };\nvar result = Terser.minify(code, options);\nconsole.log(result.error); // runtime error, `undefined` in this case\nconsole.log(result.warnings); // [ 'Dropping unused variable u [0:1,18]' ]\nconsole.log(result.code); // function f(){return 5}\n```\n\nAn error example:\n```javascript\nvar result = Terser.minify({\"foo.js\" : \"if (0) else console.log(1);\"});\nconsole.log(JSON.stringify(result.error));\n// {\"message\":\"Unexpected token: keyword (else)\",\"filename\":\"foo.js\",\"line\":1,\"col\":7,\"pos\":7}\n```\nNote: unlike `uglify-js@2.x`, the Terser API does not throw errors.\nTo achieve a similar effect one could do the following:\n```javascript\nvar result = Terser.minify(code, options);\nif (result.error) throw result.error;\n```\n\n## Minify options\n\n- `ecma` (default `undefined`) - pass `5`, `6`, `7` or `8` to override `parse`,\n `compress` and `output` options.\n\n- `warnings` (default `false`) — pass `true` to return compressor warnings\n in `result.warnings`. Use the value `\"verbose\"` for more detailed warnings.\n\n- `parse` (default `{}`) — pass an object if you wish to specify some\n additional [parse options](#parse-options).\n\n- `compress` (default `{}`) — pass `false` to skip compressing entirely.\n Pass an object to specify custom [compress options](#compress-options).\n\n- `mangle` (default `true`) — pass `false` to skip mangling names, or pass\n an object to specify [mangle options](#mangle-options) (see below).\n\n - `mangle.properties` (default `false`) — a subcategory of the mangle option.\n Pass an object to specify custom [mangle property options](#mangle-properties-options).\n\n- `module` (default `false`) — Use when minifying an ES6 module. \"use strict\"\n is implied and names can be mangled on the top scope. If `compress` or\n `mangle` is enabled then the `toplevel` option will be enabled.\n\n- `output` (default `null`) — pass an object if you wish to specify\n additional [output options](#output-options). The defaults are optimized\n for best compression.\n\n- `sourceMap` (default `false`) - pass an object if you wish to specify\n [source map options](#source-map-options).\n\n- `toplevel` (default `false`) - set to `true` if you wish to enable top level\n variable and function name mangling and to drop unused variables and functions.\n\n- `nameCache` (default `null`) - pass an empty object `{}` or a previously\n used `nameCache` object if you wish to cache mangled variable and\n property names across multiple invocations of `minify()`. Note: this is\n a read/write property. `minify()` will read the name cache state of this\n object and update it during minification so that it may be\n reused or externally persisted by the user.\n\n- `ie8` (default `false`) - set to `true` to support IE8.\n\n- `keep_classnames` (default: `undefined`) - pass `true` to prevent discarding or mangling\n of class names. Pass a regular expression to only keep class names matching that regex.\n\n- `keep_fnames` (default: `false`) - pass `true` to prevent discarding or mangling\n of function names. Pass a regular expression to only keep class names matching that regex.\n Useful for code relying on `Function.prototype.name`. If the top level minify option\n `keep_classnames` is `undefined` it will be overridden with the value of the top level\n minify option `keep_fnames`.\n\n- `safari10` (default: `false`) - pass `true` to work around Safari 10/11 bugs in\n loop scoping and `await`. See `safari10` options in [`mangle`](#mangle-options)\n and [`output`](#output-options) for details.\n\n## Minify options structure\n\n```javascript\n{\n parse: {\n // parse options\n },\n compress: {\n // compress options\n },\n mangle: {\n // mangle options\n\n properties: {\n // mangle property options\n }\n },\n output: {\n // output options\n },\n sourceMap: {\n // source map options\n },\n ecma: 5, // specify one of: 5, 6, 7 or 8\n keep_classnames: false,\n keep_fnames: false,\n ie8: false,\n module: false,\n nameCache: null, // or specify a name cache object\n safari10: false,\n toplevel: false,\n warnings: false,\n}\n```\n\n### Source map options\n\nTo generate a source map:\n```javascript\nvar result = Terser.minify({\"file1.js\": \"var a = function() {};\"}, {\n sourceMap: {\n filename: \"out.js\",\n url: \"out.js.map\"\n }\n});\nconsole.log(result.code); // minified output\nconsole.log(result.map); // source map\n```\n\nNote that the source map is not saved in a file, it's just returned in\n`result.map`. The value passed for `sourceMap.url` is only used to set\n`//# sourceMappingURL=out.js.map` in `result.code`. The value of\n`filename` is only used to set `file` attribute (see [the spec][sm-spec])\nin source map file.\n\nYou can set option `sourceMap.url` to be `\"inline\"` and source map will\nbe appended to code.\n\nYou can also specify sourceRoot property to be included in source map:\n```javascript\nvar result = Terser.minify({\"file1.js\": \"var a = function() {};\"}, {\n sourceMap: {\n root: \"http://example.com/src\",\n url: \"out.js.map\"\n }\n});\n```\n\nIf you're compressing compiled JavaScript and have a source map for it, you\ncan use `sourceMap.content`:\n```javascript\nvar result = Terser.minify({\"compiled.js\": \"compiled code\"}, {\n sourceMap: {\n content: \"content from compiled.js.map\",\n url: \"minified.js.map\"\n }\n});\n// same as before, it returns `code` and `map`\n```\n\nIf you're using the `X-SourceMap` header instead, you can just omit `sourceMap.url`.\n\n## Parse options\n\n- `bare_returns` (default `false`) -- support top level `return` statements\n\n- `ecma` (default: `8`) -- specify one of `5`, `6`, `7` or `8`. Note: this setting\n is not presently enforced except for ES8 optional trailing commas in function\n parameter lists and calls with `ecma` `8`.\n\n- `html5_comments` (default `true`)\n\n- `shebang` (default `true`) -- support `#!command` as the first line\n\n## Compress options\n\n- `arrows` (default: `true`) -- Converts `()=>{return x}` to `()=>x`. Class\n and object literal methods will also be converted to arrow expressions if\n the resultant code is shorter: `m(){return x}` becomes `m:()=>x`.\n\n- `arguments` (default: `false`) -- replace `arguments[index]` with function\n parameter name whenever possible.\n\n- `booleans` (default: `true`) -- various optimizations for boolean context,\n for example `!!a ? b : c → a ? b : c`\n\n- `booleans_as_integers` (default: `false`) -- Turn booleans into 0 and 1, also\n makes comparisons with booleans use `==` and `!=` instead of `===` and `!==`.\n\n- `collapse_vars` (default: `true`) -- Collapse single-use non-constant variables,\n side effects permitting.\n\n- `comparisons` (default: `true`) -- apply certain optimizations to binary nodes,\n e.g. `!(a <= b) → a > b` (only when `unsafe_comps`), attempts to negate binary\n nodes, e.g. `a = !b && !c && !d && !e → a=!(b||c||d||e)` etc.\n\n- `computed_props` (default: `true`) -- Transforms constant computed properties\n into regular ones: `{[\"computed\"]: 1}` is converted to `{computed: 1}`.\n\n- `conditionals` (default: `true`) -- apply optimizations for `if`-s and conditional\n expressions\n\n- `dead_code` (default: `true`) -- remove unreachable code\n\n- `defaults` (default: `true`) -- Pass `false` to disable most default\n enabled `compress` transforms. Useful when you only want to enable a few\n `compress` options while disabling the rest.\n\n- `directives` (default: `true`) -- remove redundant or non-standard directives\n\n- `drop_console` (default: `false`) -- Pass `true` to discard calls to\n `console.*` functions. If you wish to drop a specific function call\n such as `console.info` and/or retain side effects from function arguments\n after dropping the function call then use `pure_funcs` instead.\n\n- `drop_debugger` (default: `true`) -- remove `debugger;` statements\n\n- `ecma` (default: `5`) -- Pass `6` or greater to enable `compress` options that\n will transform ES5 code into smaller ES6+ equivalent forms.\n\n- `evaluate` (default: `true`) -- attempt to evaluate constant expressions\n\n- `expression` (default: `false`) -- Pass `true` to preserve completion values\n from terminal statements without `return`, e.g. in bookmarklets.\n\n- `global_defs` (default: `{}`) -- see [conditional compilation](#conditional-compilation)\n\n- `hoist_funs` (default: `false`) -- hoist function declarations\n\n- `hoist_props` (default: `true`) -- hoist properties from constant object and\n array literals into regular variables subject to a set of constraints. For example:\n `var o={p:1, q:2}; f(o.p, o.q);` is converted to `f(1, 2);`. Note: `hoist_props`\n works best with `mangle` enabled, the `compress` option `passes` set to `2` or higher,\n and the `compress` option `toplevel` enabled.\n\n- `hoist_vars` (default: `false`) -- hoist `var` declarations (this is `false`\n by default because it seems to increase the size of the output in general)\n\n- `if_return` (default: `true`) -- optimizations for if/return and if/continue\n\n- `inline` (default: `true`) -- inline calls to function with simple/`return` statement:\n - `false` -- same as `0`\n - `0` -- disabled inlining\n - `1` -- inline simple functions\n - `2` -- inline functions with arguments\n - `3` -- inline functions with arguments and variables\n - `true` -- same as `3`\n\n- `join_vars` (default: `true`) -- join consecutive `var` statements\n\n- `keep_classnames` (default: `false`) -- Pass `true` to prevent the compressor from\n discarding class names. Pass a regular expression to only keep class names matching\n that regex. See also: the `keep_classnames` [mangle option](#mangle).\n\n- `keep_fargs` (default: `true`) -- Prevents the compressor from discarding unused\n function arguments. You need this for code which relies on `Function.length`.\n\n- `keep_fnames` (default: `false`) -- Pass `true` to prevent the\n compressor from discarding function names. Pass a regular expression to only keep\n class names matching that regex. Useful for code relying on `Function.prototype.name`.\n See also: the `keep_fnames` [mangle option](#mangle).\n\n- `keep_infinity` (default: `false`) -- Pass `true` to prevent `Infinity` from\n being compressed into `1/0`, which may cause performance issues on Chrome.\n\n- `loops` (default: `true`) -- optimizations for `do`, `while` and `for` loops\n when we can statically determine the condition.\n\n- `module` (default `false`) -- Pass `true` when compressing an ES6 module. Strict\n mode is implied and the `toplevel` option as well.\n\n- `negate_iife` (default: `true`) -- negate \"Immediately-Called Function Expressions\"\n where the return value is discarded, to avoid the parens that the\n code generator would insert.\n\n- `passes` (default: `1`) -- The maximum number of times to run compress.\n In some cases more than one pass leads to further compressed code. Keep in\n mind more passes will take more time.\n\n- `properties` (default: `true`) -- rewrite property access using the dot notation, for\n example `foo[\"bar\"] → foo.bar`\n\n- `pure_funcs` (default: `null`) -- You can pass an array of names and\n Terser will assume that those functions do not produce side\n effects. DANGER: will not check if the name is redefined in scope.\n An example case here, for instance `var q = Math.floor(a/b)`. If\n variable `q` is not used elsewhere, Terser will drop it, but will\n still keep the `Math.floor(a/b)`, not knowing what it does. You can\n pass `pure_funcs: [ 'Math.floor' ]` to let it know that this\n function won't produce any side effect, in which case the whole\n statement would get discarded. The current implementation adds some\n overhead (compression will be slower).\n\n- `pure_getters` (default: `\"strict\"`) -- If you pass `true` for\n this, Terser will assume that object property access\n (e.g. `foo.bar` or `foo[\"bar\"]`) doesn't have any side effects.\n Specify `\"strict\"` to treat `foo.bar` as side-effect-free only when\n `foo` is certain to not throw, i.e. not `null` or `undefined`.\n\n- `reduce_funcs` (default: `true`) -- Allows single-use functions to be\n inlined as function expressions when permissible allowing further\n optimization. Enabled by default. Option depends on `reduce_vars`\n being enabled. Some code runs faster in the Chrome V8 engine if this\n option is disabled. Does not negatively impact other major browsers.\n\n- `reduce_vars` (default: `true`) -- Improve optimization on variables assigned with and\n used as constant values.\n\n- `sequences` (default: `true`) -- join consecutive simple statements using the\n comma operator. May be set to a positive integer to specify the maximum number\n of consecutive comma sequences that will be generated. If this option is set to\n `true` then the default `sequences` limit is `200`. Set option to `false` or `0`\n to disable. The smallest `sequences` length is `2`. A `sequences` value of `1`\n is grandfathered to be equivalent to `true` and as such means `200`. On rare\n occasions the default sequences limit leads to very slow compress times in which\n case a value of `20` or less is recommended.\n\n- `side_effects` (default: `true`) -- Pass `false` to disable potentially dropping\n functions marked as \"pure\". A function call is marked as \"pure\" if a comment\n annotation `/*@__PURE__*/` or `/*#__PURE__*/` immediately precedes the call. For\n example: `/*@__PURE__*/foo();`\n\n- `switches` (default: `true`) -- de-duplicate and remove unreachable `switch` branches\n\n- `toplevel` (default: `false`) -- drop unreferenced functions (`\"funcs\"`) and/or\n variables (`\"vars\"`) in the top level scope (`false` by default, `true` to drop\n both unreferenced functions and variables)\n\n- `top_retain` (default: `null`) -- prevent specific toplevel functions and\n variables from `unused` removal (can be array, comma-separated, RegExp or\n function. Implies `toplevel`)\n\n- `typeofs` (default: `true`) -- Transforms `typeof foo == \"undefined\"` into\n `foo === void 0`. Note: recommend to set this value to `false` for IE10 and\n earlier versions due to known issues.\n\n- `unsafe` (default: `false`) -- apply \"unsafe\" transformations\n ([details](#the-unsafe-compress-option)).\n\n- `unsafe_arrows` (default: `false`) -- Convert ES5 style anonymous function\n expressions to arrow functions if the function body does not reference `this`.\n Note: it is not always safe to perform this conversion if code relies on the\n the function having a `prototype`, which arrow functions lack.\n This transform requires that the `ecma` compress option is set to `6` or greater.\n\n- `unsafe_comps` (default: `false`) -- Reverse `<` and `<=` to `>` and `>=` to\n allow improved compression. This might be unsafe when an at least one of two\n operands is an object with computed values due the use of methods like `get`,\n or `valueOf`. This could cause change in execution order after operands in the\n comparison are switching. Compression only works if both `comparisons` and\n `unsafe_comps` are both set to true.\n\n- `unsafe_Function` (default: `false`) -- compress and mangle `Function(args, code)`\n when both `args` and `code` are string literals.\n\n- `unsafe_math` (default: `false`) -- optimize numerical expressions like\n `2 * x * 3` into `6 * x`, which may give imprecise floating point results.\n\n- `unsafe_methods` (default: false) -- Converts `{ m: function(){} }` to\n `{ m(){} }`. `ecma` must be set to `6` or greater to enable this transform.\n If `unsafe_methods` is a RegExp then key/value pairs with keys matching the\n RegExp will be converted to concise methods.\n Note: if enabled there is a risk of getting a \"`<method name>` is not a\n constructor\" TypeError should any code try to `new` the former function.\n\n- `unsafe_proto` (default: `false`) -- optimize expressions like\n `Array.prototype.slice.call(a)` into `[].slice.call(a)`\n\n- `unsafe_regexp` (default: `false`) -- enable substitutions of variables with\n `RegExp` values the same way as if they are constants.\n\n- `unsafe_undefined` (default: `false`) -- substitute `void 0` if there is a\n variable named `undefined` in scope (variable name will be mangled, typically\n reduced to a single character)\n\n- `unused` (default: `true`) -- drop unreferenced functions and variables (simple\n direct variable assignments do not count as references unless set to `\"keep_assign\"`)\n\n- `warnings` (default: `false`) -- display warnings when dropping unreachable\n code or unused declarations etc.\n\n## Mangle options\n\n- `eval` (default `false`) -- Pass `true` to mangle names visible in scopes\n where `eval` or `with` are used.\n\n- `keep_classnames` (default `false`) -- Pass `true` to not mangle class names.\n Pass a regular expression to only keep class names matching that regex.\n See also: the `keep_classnames` [compress option](#compress-options).\n\n- `keep_fnames` (default `false`) -- Pass `true` to not mangle function names.\n Pass a regular expression to only keep class names matching that regex.\n Useful for code relying on `Function.prototype.name`. See also: the `keep_fnames`\n [compress option](#compress-options).\n\n- `module` (default `false`) -- Pass `true` an ES6 modules, where the toplevel\n scope is not the global scope. Implies `toplevel`.\n\n- `reserved` (default `[]`) -- Pass an array of identifiers that should be\n excluded from mangling. Example: `[\"foo\", \"bar\"]`.\n\n- `toplevel` (default `false`) -- Pass `true` to mangle names declared in the\n top level scope.\n\n- `safari10` (default `false`) -- Pass `true` to work around the Safari 10 loop\n iterator [bug](https://bugs.webkit.org/show_bug.cgi?id=171041)\n \"Cannot declare a let variable twice\".\n See also: the `safari10` [output option](#output-options).\n\nExamples:\n\n```javascript\n// test.js\nvar globalVar;\nfunction funcName(firstLongName, anotherLongName) {\n var myVariable = firstLongName + anotherLongName;\n}\n```\n```javascript\nvar code = fs.readFileSync(\"test.js\", \"utf8\");\n\nTerser.minify(code).code;\n// 'function funcName(a,n){}var globalVar;'\n\nTerser.minify(code, { mangle: { reserved: ['firstLongName'] } }).code;\n// 'function funcName(firstLongName,a){}var globalVar;'\n\nTerser.minify(code, { mangle: { toplevel: true } }).code;\n// 'function n(n,a){}var a;'\n```\n\n### Mangle properties options\n\n- `builtins` (default: `false`) -- Use `true` to allow the mangling of builtin\n DOM properties. Not recommended to override this setting.\n\n- `debug` (default: `false`) -— Mangle names with the original name still present.\n Pass an empty string `\"\"` to enable, or a non-empty string to set the debug suffix.\n\n- `keep_quoted` (default: `false`) -— Only mangle unquoted property names.\n\n- `regex` (default: `null`) -— Pass a RegExp literal to only mangle property\n names matching the regular expression.\n\n- `reserved` (default: `[]`) -- Do not mangle property names listed in the\n `reserved` array.\n\n## Output options\n\nThe code generator tries to output shortest code possible by default. In\ncase you want beautified output, pass `--beautify` (`-b`). Optionally you\ncan pass additional arguments that control the code output:\n\n- `ascii_only` (default `false`) -- escape Unicode characters in strings and\n regexps (affects directives with non-ascii characters becoming invalid)\n\n- `beautify` (default `true`) -- whether to actually beautify the output.\n Passing `-b` will set this to true, but you might need to pass `-b` even\n when you want to generate minified code, in order to specify additional\n arguments, so you can use `-b beautify=false` to override it.\n\n- `braces` (default `false`) -- always insert braces in `if`, `for`,\n `do`, `while` or `with` statements, even if their body is a single\n statement.\n\n- `comments` (default `false`) -- pass `true` or `\"all\"` to preserve all\n comments, `\"some\"` to preserve some comments, a regular expression string\n (e.g. `/^!/`) or a function.\n\n- `ecma` (default `5`) -- set output printing mode. Set `ecma` to `6` or\n greater to emit shorthand object properties - i.e.: `{a}` instead of `{a: a}`.\n The `ecma` option will only change the output in direct control of the\n beautifier. Non-compatible features in the abstract syntax tree will still\n be output as is. For example: an `ecma` setting of `5` will **not** convert\n ES6+ code to ES5.\n\n- `indent_level` (default `4`)\n\n- `indent_start` (default `0`) -- prefix all lines by that many spaces\n\n- `inline_script` (default `true`) -- escape HTML comments and the slash in\n occurrences of `</script>` in strings\n\n- `keep_quoted_props` (default `false`) -- when turned on, prevents stripping\n quotes from property names in object literals.\n\n- `max_line_len` (default `false`) -- maximum line length (for minified code)\n\n- `preamble` (default `null`) -- when passed it must be a string and\n it will be prepended to the output literally. The source map will\n adjust for this text. Can be used to insert a comment containing\n licensing information, for example.\n\n- `quote_keys` (default `false`) -- pass `true` to quote all keys in literal\n objects\n\n- `quote_style` (default `0`) -- preferred quote style for strings (affects\n quoted property names and directives as well):\n - `0` -- prefers double quotes, switches to single quotes when there are\n more double quotes in the string itself. `0` is best for gzip size.\n - `1` -- always use single quotes\n - `2` -- always use double quotes\n - `3` -- always use the original quotes\n\n- `safari10` (default `false`) -- set this option to `true` to work around\n the [Safari 10/11 await bug](https://bugs.webkit.org/show_bug.cgi?id=176685).\n See also: the `safari10` [mangle option](#mangle-options).\n\n- `semicolons` (default `true`) -- separate statements with semicolons. If\n you pass `false` then whenever possible we will use a newline instead of a\n semicolon, leading to more readable output of minified code (size before\n gzip could be smaller; size after gzip insignificantly larger).\n\n- `shebang` (default `true`) -- preserve shebang `#!` in preamble (bash scripts)\n\n- `webkit` (default `false`) -- enable workarounds for WebKit bugs.\n PhantomJS users should set this option to `true`.\n\n- `wrap_iife` (default `false`) -- pass `true` to wrap immediately invoked\n function expressions. See\n [#640](https://github.com/mishoo/UglifyJS2/issues/640) for more details.\n\n# Miscellaneous\n\n### Keeping copyright notices or other comments\n\nYou can pass `--comments` to retain certain comments in the output. By\ndefault it will keep JSDoc-style comments that contain \"@preserve\",\n\"@license\" or \"@cc_on\" (conditional compilation for IE). You can pass\n`--comments all` to keep all the comments, or a valid JavaScript regexp to\nkeep only comments that match this regexp. For example `--comments /^!/`\nwill keep comments like `/*! Copyright Notice */`.\n\nNote, however, that there might be situations where comments are lost. For\nexample:\n```javascript\nfunction f() {\n /** @preserve Foo Bar */\n function g() {\n // this function is never called\n }\n return something();\n}\n```\n\nEven though it has \"@preserve\", the comment will be lost because the inner\nfunction `g` (which is the AST node to which the comment is attached to) is\ndiscarded by the compressor as not referenced.\n\nThe safest comments where to place copyright information (or other info that\nneeds to be kept in the output) are comments attached to toplevel nodes.\n\n### The `unsafe` `compress` option\n\nIt enables some transformations that *might* break code logic in certain\ncontrived cases, but should be fine for most code. It assumes that standard\nbuilt-in ECMAScript functions and classes have not been altered or replaced.\nYou might want to try it on your own code; it should reduce the minified size.\nSome examples of the optimizations made when this option is enabled:\n\n- `new Array(1, 2, 3)` or `Array(1, 2, 3)` → `[ 1, 2, 3 ]`\n- `new Object()` → `{}`\n- `String(exp)` or `exp.toString()` → `\"\" + exp`\n- `new Object/RegExp/Function/Error/Array (...)` → we discard the `new`\n- `\"foo bar\".substr(4)` → `\"bar\"`\n\n### Conditional compilation\n\nYou can use the `--define` (`-d`) switch in order to declare global\nvariables that Terser will assume to be constants (unless defined in\nscope). For example if you pass `--define DEBUG=false` then, coupled with\ndead code removal Terser will discard the following from the output:\n```javascript\nif (DEBUG) {\n console.log(\"debug stuff\");\n}\n```\n\nYou can specify nested constants in the form of `--define env.DEBUG=false`.\n\nTerser will warn about the condition being always false and about dropping\nunreachable code; for now there is no option to turn off only this specific\nwarning, you can pass `warnings=false` to turn off *all* warnings.\n\nAnother way of doing that is to declare your globals as constants in a\nseparate file and include it into the build. For example you can have a\n`build/defines.js` file with the following:\n```javascript\nvar DEBUG = false;\nvar PRODUCTION = true;\n// etc.\n```\n\nand build your code like this:\n\n terser build/defines.js js/foo.js js/bar.js... -c\n\nTerser will notice the constants and, since they cannot be altered, it\nwill evaluate references to them to the value itself and drop unreachable\ncode as usual. The build will contain the `const` declarations if you use\nthem. If you are targeting < ES6 environments which does not support `const`,\nusing `var` with `reduce_vars` (enabled by default) should suffice.\n\n### Conditional compilation API\n\nYou can also use conditional compilation via the programmatic API. With the difference that the\nproperty name is `global_defs` and is a compressor property:\n\n```javascript\nvar result = Terser.minify(fs.readFileSync(\"input.js\", \"utf8\"), {\n compress: {\n dead_code: true,\n global_defs: {\n DEBUG: false\n }\n }\n});\n```\n\nTo replace an identifier with an arbitrary non-constant expression it is\nnecessary to prefix the `global_defs` key with `\"@\"` to instruct Terser\nto parse the value as an expression:\n```javascript\nTerser.minify(\"alert('hello');\", {\n compress: {\n global_defs: {\n \"@alert\": \"console.log\"\n }\n }\n}).code;\n// returns: 'console.log(\"hello\");'\n```\n\nOtherwise it would be replaced as string literal:\n```javascript\nTerser.minify(\"alert('hello');\", {\n compress: {\n global_defs: {\n \"alert\": \"console.log\"\n }\n }\n}).code;\n// returns: '\"console.log\"(\"hello\");'\n```\n\n### Using native Terser AST with `minify()`\n```javascript\n// example: parse only, produce native Terser AST\n\nvar result = Terser.minify(code, {\n parse: {},\n compress: false,\n mangle: false,\n output: {\n ast: true,\n code: false // optional - faster if false\n }\n});\n\n// result.ast contains native Terser AST\n```\n```javascript\n// example: accept native Terser AST input and then compress and mangle\n// to produce both code and native AST.\n\nvar result = Terser.minify(ast, {\n compress: {},\n mangle: {},\n output: {\n ast: true,\n code: true // optional - faster if false\n }\n});\n\n// result.ast contains native Terser AST\n// result.code contains the minified code in string form.\n```\n\n### Working with Terser AST\n\nTraversal and transformation of the native AST can be performed through\n[`TreeWalker`](https://github.com/fabiosantoscode/terser/blob/master/lib/ast.js) and\n[`TreeTransformer`](https://github.com/fabiosantoscode/terser/blob/master/lib/transform.js)\nrespectively.\n\nLargely compatible native AST examples can be found in the original UglifyJS\ndocumentation. See: [tree walker](http://lisperator.net/uglifyjs/walk) and\n[tree transform](http://lisperator.net/uglifyjs/transform).\n\n### ESTree / SpiderMonkey AST\n\nTerser has its own abstract syntax tree format; for\n[practical reasons](http://lisperator.net/blog/uglifyjs-why-not-switching-to-spidermonkey-ast/)\nwe can't easily change to using the SpiderMonkey AST internally. However,\nTerser now has a converter which can import a SpiderMonkey AST.\n\nFor example [Acorn][acorn] is a super-fast parser that produces a\nSpiderMonkey AST. It has a small CLI utility that parses one file and dumps\nthe AST in JSON on the standard output. To use Terser to mangle and\ncompress that:\n\n acorn file.js | terser -p spidermonkey -m -c\n\nThe `-p spidermonkey` option tells Terser that all input files are not\nJavaScript, but JS code described in SpiderMonkey AST in JSON. Therefore we\ndon't use our own parser in this case, but just transform that AST into our\ninternal AST.\n\n### Use Acorn for parsing\n\nMore for fun, I added the `-p acorn` option which will use Acorn to do all\nthe parsing. If you pass this option, Terser will `require(\"acorn\")`.\n\nAcorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but\nconverting the SpiderMonkey tree that Acorn produces takes another 150ms so\nin total it's a bit more than just using Terser's own parser.\n\n[acorn]: https://github.com/ternjs/acorn\n[sm-spec]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k\n\n### Terser Fast Minify Mode\n\nIt's not well known, but whitespace removal and symbol mangling accounts\nfor 95% of the size reduction in minified code for most JavaScript - not\nelaborate code transforms. One can simply disable `compress` to speed up\nTerser builds by 3 to 4 times.\n\n| d3.js | size | gzip size | time (s) |\n| --- | ---: | ---: | ---: |\n| original | 451,131 | 108,733 | - |\n| terser@3.7.5 mangle=false, compress=false | 316,600 | 85,245 | 0.82 |\n| terser@3.7.5 mangle=true, compress=false | 220,216 | 72,730 | 1.45 |\n| terser@3.7.5 mangle=true, compress=true | 212,046 | 70,954 | 5.87 |\n| babili@0.1.4 | 210,713 | 72,140 | 12.64 |\n| babel-minify@0.4.3 | 210,321 | 72,242 | 48.67 |\n| babel-minify@0.5.0-alpha.01eac1c3 | 210,421 | 72,238 | 14.17 |\n\nTo enable fast minify mode from the CLI use:\n```\nterser file.js -m\n```\nTo enable fast minify mode with the API use:\n```js\nTerser.minify(code, { compress: false, mangle: true });\n```\n\n#### Source maps and debugging\n\nVarious `compress` transforms that simplify, rearrange, inline and remove code\nare known to have an adverse effect on debugging with source maps. This is\nexpected as code is optimized and mappings are often simply not possible as\nsome code no longer exists. For highest fidelity in source map debugging\ndisable the `compress` option and just use `mangle`.\n\n### Compiler assumptions\n\nTo allow for better optimizations, the compiler makes various assumptions:\n\n- `.toString()` and `.valueOf()` don't have side effects, and for built-in\n objects they have not been overridden.\n- `undefined`, `NaN` and `Infinity` have not been externally redefined.\n- `arguments.callee`, `arguments.caller` and `Function.prototype.caller` are not used.\n- The code doesn't expect the contents of `Function.prototype.toString()` or\n `Error.prototype.stack` to be anything in particular.\n- Getting and setting properties on a plain object does not cause other side effects\n (using `.watch()` or `Proxy`).\n- Object properties can be added, removed and modified (not prevented with\n `Object.defineProperty()`, `Object.defineProperties()`, `Object.freeze()`,\n `Object.preventExtensions()` or `Object.seal()`).\n\n### Build Tools and Adaptors using Terser\n\nhttps://www.npmjs.com/browse/depended/terser\n\n### Replacing `uglify-es` with `terser` in a project using `yarn`\n\nA number of JS bundlers and uglify wrappers are still using buggy versions\nof `uglify-es` and have not yet upgraded to `terser`. If you are using `yarn`\nyou can add the following alias to your project's `package.json` file:\n\n```js\n \"resolutions\": {\n \"uglify-es\": \"npm:terser\"\n }\n```\n\nto use `terser` instead of `uglify-es` in all deeply nested dependencies\nwithout changing any code.\n\nNote: for this change to take effect you must run the following commands\nto remove the existing `yarn` lock file and reinstall all packages:\n\n```\n$ rm -rf node_modules yarn.lock\n$ yarn\n```\n\n# Reporting issues\n\nIn the terser CLI we use [source-map-support](https://npmjs.com/source-map-support) to produce good error stacks. In your own app, you're expected to enable source-map-support (read their docs) to have nice stack traces that will make good issues.\n\n# README.md Patrons:\n\n*note*: You can support this project on patreon: <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.patreon.com/terser_ecmacomp_maintainer\"><img src=\"https://c5.patreon.com/external/logo/become_a_patron_button@2x.png\" alt=\"patron\" width=\"100px\" height=\"auto\"></a>. Check out PATRONS.md for our first-tier patrons.\n\n * CKEditor \n * 38elements \nLike FS streams, but with stat on them, and supporting directories and\nsymbolic links, as well as normal files. Also, you can use this to set\nthe stats on a file, even if you don't change its contents, or to create\na symlink, etc.\n\nSo, for example, you can \"write\" a directory, and it'll call `mkdir`. You\ncan specify a uid and gid, and it'll call `chown`. You can specify a\n`mtime` and `atime`, and it'll call `utimes`. You can call it a symlink\nand provide a `linkpath` and it'll call `symlink`.\n\nNote that it won't automatically resolve symbolic links. So, if you\ncall `fstream.Reader('/some/symlink')` then you'll get an object\nthat stats and then ends immediately (since it has no data). To follow\nsymbolic links, do this: `fstream.Reader({path:'/some/symlink', follow:\ntrue })`.\n\nThere are various checks to make sure that the bytes emitted are the\nsame as the intended size, if the size is set.\n\n## Examples\n\n```javascript\nfstream\n .Writer({ path: \"path/to/file\"\n , mode: 0755\n , size: 6\n })\n .write(\"hello\\n\")\n .end()\n```\n\nThis will create the directories if they're missing, and then write\n`hello\\n` into the file, chmod it to 0755, and assert that 6 bytes have\nbeen written when it's done.\n\n```javascript\nfstream\n .Writer({ path: \"path/to/file\"\n , mode: 0755\n , size: 6\n , flags: \"a\"\n })\n .write(\"hello\\n\")\n .end()\n```\n\nYou can pass flags in, if you want to append to a file.\n\n```javascript\nfstream\n .Writer({ path: \"path/to/symlink\"\n , linkpath: \"./file\"\n , SymbolicLink: true\n , mode: \"0755\" // octal strings supported\n })\n .end()\n```\n\nIf isSymbolicLink is a function, it'll be called, and if it returns\ntrue, then it'll treat it as a symlink. If it's not a function, then\nany truish value will make a symlink, or you can set `type:\n'SymbolicLink'`, which does the same thing.\n\nNote that the linkpath is relative to the symbolic link location, not\nthe parent dir or cwd.\n\n```javascript\nfstream\n .Reader(\"path/to/dir\")\n .pipe(fstream.Writer(\"path/to/other/dir\"))\n```\n\nThis will do like `cp -Rp path/to/dir path/to/other/dir`. If the other\ndir exists and isn't a directory, then it'll emit an error. It'll also\nset the uid, gid, mode, etc. to be identical. In this way, it's more\nlike `rsync -a` than simply a copy.\nnode-gyp\n=========\n## Node.js native addon build tool\n\n`node-gyp` is a cross-platform command-line tool written in Node.js for compiling\nnative addon modules for Node.js. It bundles the [gyp](https://gyp.gsrc.io)\nproject used by the Chromium team and takes away the pain of dealing with the\nvarious differences in build platforms. It is the replacement to the `node-waf`\nprogram which is removed for node `v0.8`. If you have a native addon for node that\nstill has a `wscript` file, then you should definitely add a `binding.gyp` file\nto support the latest versions of node.\n\nMultiple target versions of node are supported (i.e. `0.8`, ..., `4`, `5`, `6`,\netc.), regardless of what version of node is actually installed on your system\n(`node-gyp` downloads the necessary development files or headers for the target version).\n\n## Features\n\n * Easy to use, consistent interface\n * Same commands to build your module on every platform\n * Supports multiple target versions of Node\n\nInstallation\n------------\n\nYou can install with `npm`:\n\n``` bash\n$ npm install -g node-gyp\n```\n\nYou will also need to install:\n\n### On Unix\n\n * `python` (`v2.7` recommended, `v3.x.x` is __*not*__ supported)\n * `make`\n * A proper C/C++ compiler toolchain, like [GCC](https://gcc.gnu.org)\n\n### On macOS\n\n * `python` (`v2.7` recommended, `v3.x.x` is __*not*__ supported) (already installed on macOS)\n * [Xcode](https://developer.apple.com/xcode/download/)\n * You also need to install the `Command Line Tools` via Xcode. You can find this under the menu `Xcode -> Preferences -> Locations` (or by running `xcode-select --install` in your Terminal)\n * This step will install `gcc` and the related toolchain containing `make`\n\n### On Windows\n\n#### Option 1\n\nInstall all the required tools and configurations using Microsoft's [windows-build-tools](https://github.com/felixrieseberg/windows-build-tools) using `npm install --global --production windows-build-tools` from an elevated PowerShell or CMD.exe (run as Administrator).\n\n#### Option 2\n\nInstall tools and configuration manually:\n * Install Visual C++ Build Environment: [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools)\n (using \"Visual C++ build tools\" workload) or [Visual Studio 2017 Community](https://visualstudio.microsoft.com/pl/thank-you-downloading-visual-studio/?sku=Community)\n (using the \"Desktop development with C++\" workload)\n * Install [Python 2.7](https://www.python.org/downloads/) (`v3.x.x` is not supported), and run `npm config set python python2.7` (or see below for further instructions on specifying the proper Python version and path.)\n * Launch cmd, `npm config set msvs_version 2017`\n\n If the above steps didn't work for you, please visit [Microsoft's Node.js Guidelines for Windows](https://github.com/Microsoft/nodejs-guidelines/blob/master/windows-environment.md#compiling-native-addon-modules) for additional tips.\n\nIf you have multiple Python versions installed, you can identify which Python\nversion `node-gyp` uses by setting the '--python' variable:\n\n``` bash\n$ node-gyp --python /path/to/python2.7\n```\n\nIf `node-gyp` is called by way of `npm` *and* you have multiple versions of\nPython installed, then you can set `npm`'s 'python' config key to the appropriate\nvalue:\n\n``` bash\n$ npm config set python /path/to/executable/python2.7\n```\n\nHow to Use\n----------\n\nTo compile your native addon, first go to its root directory:\n\n``` bash\n$ cd my_node_addon\n```\n\nThe next step is to generate the appropriate project build files for the current\nplatform. Use `configure` for that:\n\n``` bash\n$ node-gyp configure\n```\n\nAuto-detection fails for Visual C++ Build Tools 2015, so `--msvs_version=2015`\nneeds to be added (not needed when run by npm as configured above):\n``` bash\n$ node-gyp configure --msvs_version=2015\n```\n\n__Note__: The `configure` step looks for the `binding.gyp` file in the current\ndirectory to process. See below for instructions on creating the `binding.gyp` file.\n\nNow you will have either a `Makefile` (on Unix platforms) or a `vcxproj` file\n(on Windows) in the `build/` directory. Next invoke the `build` command:\n\n``` bash\n$ node-gyp build\n```\n\nNow you have your compiled `.node` bindings file! The compiled bindings end up\nin `build/Debug/` or `build/Release/`, depending on the build mode. At this point\nyou can require the `.node` file with Node and run your tests!\n\n__Note:__ To create a _Debug_ build of the bindings file, pass the `--debug` (or\n`-d`) switch when running either the `configure`, `build` or `rebuild` command.\n\nThe \"binding.gyp\" file\n----------------------\n\nPreviously when node had `node-waf` you had to write a `wscript` file. The\nreplacement for that is the `binding.gyp` file, which describes the configuration\nto build your module in a JSON-like format. This file gets placed in the root of\nyour package, alongside the `package.json` file.\n\nA barebones `gyp` file appropriate for building a node addon looks like:\n\n``` python\n{\n \"targets\": [\n {\n \"target_name\": \"binding\",\n \"sources\": [ \"src/binding.cc\" ]\n }\n ]\n}\n```\n\nSome additional resources for addons and writing `gyp` files:\n\n * [\"Going Native\" a nodeschool.io tutorial](http://nodeschool.io/#goingnative)\n * [\"Hello World\" node addon example](https://github.com/nodejs/node/tree/master/test/addons/hello-world)\n * [gyp user documentation](https://gyp.gsrc.io/docs/UserDocumentation.md)\n * [gyp input format reference](https://gyp.gsrc.io/docs/InputFormatReference.md)\n * [*\"binding.gyp\" files out in the wild* wiki page](https://github.com/nodejs/node-gyp/wiki/%22binding.gyp%22-files-out-in-the-wild)\n\nCommands\n--------\n\n`node-gyp` responds to the following commands:\n\n| **Command** | **Description**\n|:--------------|:---------------------------------------------------------------\n| `help` | Shows the help dialog\n| `build` | Invokes `make`/`msbuild.exe` and builds the native addon\n| `clean` | Removes the `build` directory if it exists\n| `configure` | Generates project build files for the current platform\n| `rebuild` | Runs `clean`, `configure` and `build` all in a row\n| `install` | Installs node header files for the given version\n| `list` | Lists the currently installed node header versions\n| `remove` | Removes the node header files for the given version\n\nCommand Options\n--------\n\n`node-gyp` accepts the following command options:\n\n| **Command** | **Description**\n|:----------------------------------|:------------------------------------------\n| `-j n`, `--jobs n` | Run make in parallel\n| `--target=v6.2.1` | Node version to build for (default=process.version)\n| `--silly`, `--loglevel=silly` | Log all progress to console\n| `--verbose`, `--loglevel=verbose` | Log most progress to console\n| `--silent`, `--loglevel=silent` | Don't log anything to console\n| `debug`, `--debug` | Make Debug build (default=Release)\n| `--release`, `--no-debug` | Make Release build\n| `-C $dir`, `--directory=$dir` | Run command in different directory\n| `--make=$make` | Override make command (e.g. gmake)\n| `--thin=yes` | Enable thin static libraries\n| `--arch=$arch` | Set target architecture (e.g. ia32)\n| `--tarball=$path` | Get headers from a local tarball\n| `--devdir=$path` | SDK download directory (default=~/.node-gyp)\n| `--ensure` | Don't reinstall headers if already present\n| `--dist-url=$url` | Download header tarball from custom URL\n| `--proxy=$url` | Set HTTP proxy for downloading header tarball\n| `--cafile=$cafile` | Override default CA chain (to download tarball)\n| `--nodedir=$path` | Set the path to the node source code\n| `--python=$path` | Set path to the python (2) binary\n| `--msvs_version=$version` | Set Visual Studio version (win)\n| `--solution=$solution` | Set Visual Studio Solution version (win)\n\nConfiguration\n--------\n\n__`node-gyp` responds to environment variables or `npm` configuration__\n1. Environment variables take the form `npm_config_OPTION_NAME` for any of the \n options listed above (dashes in option names should be replaced by underscores).\n These work also when `node-gyp` is invoked directly: \n `$ export npm_config_devdir=/tmp/.gyp` \n or on Windows \n `> set npm_config_devdir=c:\\temp\\.gyp` \n2. As `npm` configuration, variables take the form `OPTION_NAME`.\n This way only works when `node-gyp` is executed by `npm`: \n `$ npm config set [--global] devdir /tmp/.gyp` \n `$ npm i buffertools`\n \n\nLicense\n-------\n\n(The MIT License)\n\nCopyright (c) 2012 Nathan Rajlich <nathan@tootallnate.net>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[python-v2.7.10]: https://www.python.org/downloads/release/python-2710/\n[msvc2013]: https://www.microsoft.com/en-gb/download/details.aspx?id=44914\n[win7sdk]: https://www.microsoft.com/en-us/download/details.aspx?id=8279\n[compiler update for the Windows SDK 7.1]: https://www.microsoft.com/en-us/download/details.aspx?id=4422\nvalidate-npm-package-license\n============================\n\nGive me a string and I'll tell you if it's a valid npm package license string.\n\n```javascript\nvar valid = require('validate-npm-package-license');\n```\n\nSPDX license identifiers are valid license strings:\n\n```javascript\n\nvar assert = require('assert');\nvar validSPDXExpression = {\n validForNewPackages: true,\n validForOldPackages: true,\n spdx: true\n};\n\nassert.deepEqual(valid('MIT'), validSPDXExpression);\nassert.deepEqual(valid('BSD-2-Clause'), validSPDXExpression);\nassert.deepEqual(valid('Apache-2.0'), validSPDXExpression);\nassert.deepEqual(valid('ISC'), validSPDXExpression);\n```\nThe function will return a warning and suggestion for nearly-correct license identifiers:\n\n```javascript\nassert.deepEqual(\n valid('Apache 2.0'),\n {\n validForOldPackages: false,\n validForNewPackages: false,\n warnings: [\n 'license should be ' +\n 'a valid SPDX license expression (without \"LicenseRef\"), ' +\n '\"UNLICENSED\", or ' +\n '\"SEE LICENSE IN <filename>\"',\n 'license is similar to the valid expression \"Apache-2.0\"'\n ]\n }\n);\n```\n\nSPDX expressions are valid, too ...\n\n```javascript\n// Simple SPDX license expression for dual licensing\nassert.deepEqual(\n valid('(GPL-3.0-only OR BSD-2-Clause)'),\n validSPDXExpression\n);\n```\n\n... except if they contain `LicenseRef`:\n\n```javascript\nvar warningAboutLicenseRef = {\n validForOldPackages: false,\n validForNewPackages: false,\n spdx: true,\n warnings: [\n 'license should be ' +\n 'a valid SPDX license expression (without \"LicenseRef\"), ' +\n '\"UNLICENSED\", or ' +\n '\"SEE LICENSE IN <filename>\"',\n ]\n};\n\nassert.deepEqual(\n valid('LicenseRef-Made-Up'),\n warningAboutLicenseRef\n);\n\nassert.deepEqual(\n valid('(MIT OR LicenseRef-Made-Up)'),\n warningAboutLicenseRef\n);\n```\n\nIf you can't describe your licensing terms with standardized SPDX identifiers, put the terms in a file in the package and point users there:\n\n```javascript\nassert.deepEqual(\n valid('SEE LICENSE IN LICENSE.txt'),\n {\n validForNewPackages: true,\n validForOldPackages: true,\n inFile: 'LICENSE.txt'\n }\n);\n\nassert.deepEqual(\n valid('SEE LICENSE IN license.md'),\n {\n validForNewPackages: true,\n validForOldPackages: true,\n inFile: 'license.md'\n }\n);\n```\n\nIf there aren't any licensing terms, use `UNLICENSED`:\n\n```javascript\nvar unlicensed = {\n validForNewPackages: true,\n validForOldPackages: true,\n unlicensed: true\n};\nassert.deepEqual(valid('UNLICENSED'), unlicensed);\nassert.deepEqual(valid('UNLICENCED'), unlicensed);\n```\n# minimatch\n\nA minimal matching utility.\n\n[](http://travis-ci.org/isaacs/minimatch)\n\nThis is the matching library used internally by npm.\n\nIt works by converting glob expressions into JavaScript `RegExp`\nobjects.\n\n## Usage\n\n```javascript\nvar minimatch = require(\"minimatch\")\n\nminimatch(\"bar.foo\", \"*.foo\") // true!\nminimatch(\"bar.foo\", \"*.bar\") // false!\nminimatch(\"bar.foo\", \"*.+(bar|foo)\", { debug: true }) // true, and noisy!\n```\n\n## Features\n\nSupports these glob features:\n\n* Brace Expansion\n* Extended glob matching\n* \"Globstar\" `**` matching\n\nSee:\n\n* `man sh`\n* `man bash`\n* `man 3 fnmatch`\n* `man 5 gitignore`\n\n## Minimatch Class\n\nCreate a minimatch object by instantiating the `minimatch.Minimatch` class.\n\n```javascript\nvar Minimatch = require(\"minimatch\").Minimatch\nvar mm = new Minimatch(pattern, options)\n```\n\n### Properties\n\n* `pattern` The original pattern the minimatch object represents.\n* `options` The options supplied to the constructor.\n* `set` A 2-dimensional array of regexp or string expressions.\n Each row in the\n array corresponds to a brace-expanded pattern. Each item in the row\n corresponds to a single path-part. For example, the pattern\n `{a,b/c}/d` would expand to a set of patterns like:\n\n [ [ a, d ]\n , [ b, c, d ] ]\n\n If a portion of the pattern doesn't have any \"magic\" in it\n (that is, it's something like `\"foo\"` rather than `fo*o?`), then it\n will be left as a string rather than converted to a regular\n expression.\n\n* `regexp` Created by the `makeRe` method. A single regular expression\n expressing the entire pattern. This is useful in cases where you wish\n to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.\n* `negate` True if the pattern is negated.\n* `comment` True if the pattern is a comment.\n* `empty` True if the pattern is `\"\"`.\n\n### Methods\n\n* `makeRe` Generate the `regexp` member if necessary, and return it.\n Will return `false` if the pattern is invalid.\n* `match(fname)` Return true if the filename matches the pattern, or\n false otherwise.\n* `matchOne(fileArray, patternArray, partial)` Take a `/`-split\n filename, and match it against a single row in the `regExpSet`. This\n method is mainly for internal use, but is exposed so that it can be\n used by a glob-walker that needs to avoid excessive filesystem calls.\n\nAll other methods are internal, and will be called as necessary.\n\n### minimatch(path, pattern, options)\n\nMain export. Tests a path against the pattern using the options.\n\n```javascript\nvar isJS = minimatch(file, \"*.js\", { matchBase: true })\n```\n\n### minimatch.filter(pattern, options)\n\nReturns a function that tests its\nsupplied argument, suitable for use with `Array.filter`. Example:\n\n```javascript\nvar javascripts = fileList.filter(minimatch.filter(\"*.js\", {matchBase: true}))\n```\n\n### minimatch.match(list, pattern, options)\n\nMatch against the list of\nfiles, in the style of fnmatch or glob. If nothing is matched, and\noptions.nonull is set, then return a list containing the pattern itself.\n\n```javascript\nvar javascripts = minimatch.match(fileList, \"*.js\", {matchBase: true}))\n```\n\n### minimatch.makeRe(pattern, options)\n\nMake a regular expression object from the pattern.\n\n## Options\n\nAll options are `false` by default.\n\n### debug\n\nDump a ton of stuff to stderr.\n\n### nobrace\n\nDo not expand `{a,b}` and `{1..3}` brace sets.\n\n### noglobstar\n\nDisable `**` matching against multiple folder names.\n\n### dot\n\nAllow patterns to match filenames starting with a period, even if\nthe pattern does not explicitly have a period in that spot.\n\nNote that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`\nis set.\n\n### noext\n\nDisable \"extglob\" style patterns like `+(a|b)`.\n\n### nocase\n\nPerform a case-insensitive match.\n\n### nonull\n\nWhen a match is not found by `minimatch.match`, return a list containing\nthe pattern itself if this option is set. When not set, an empty list\nis returned if there are no matches.\n\n### matchBase\n\nIf set, then patterns without slashes will be matched\nagainst the basename of the path if it contains slashes. For example,\n`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.\n\n### nocomment\n\nSuppress the behavior of treating `#` at the start of a pattern as a\ncomment.\n\n### nonegate\n\nSuppress the behavior of treating a leading `!` character as negation.\n\n### flipNegate\n\nReturns from negate expressions the same as if they were not negated.\n(Ie, true on a hit, false on a miss.)\n\n## Comparisons to other fnmatch/glob implementations\n\nWhile strict compliance with the existing standards is a worthwhile\ngoal, some discrepancies exist between minimatch and other\nimplementations, and are intentional.\n\nIf the pattern starts with a `!` character, then it is negated. Set the\n`nonegate` flag to suppress this behavior, and treat leading `!`\ncharacters normally. This is perhaps relevant if you wish to start the\npattern with a negative extglob pattern like `!(a|B)`. Multiple `!`\ncharacters at the start of a pattern will negate the pattern multiple\ntimes.\n\nIf a pattern starts with `#`, then it is treated as a comment, and\nwill not match anything. Use `\\#` to match a literal `#` at the\nstart of a line, or set the `nocomment` flag to suppress this behavior.\n\nThe double-star character `**` is supported by default, unless the\n`noglobstar` flag is set. This is supported in the manner of bsdglob\nand bash 4.1, where `**` only has special significance if it is the only\nthing in a path part. That is, `a/**/b` will match `a/x/y/b`, but\n`a/**b` will not.\n\nIf an escaped pattern has no matches, and the `nonull` flag is set,\nthen minimatch.match returns the pattern as-provided, rather than\ninterpreting the character escapes. For example,\n`minimatch.match([], \"\\\\*a\\\\?\")` will return `\"\\\\*a\\\\?\"` rather than\n`\"*a?\"`. This is akin to setting the `nullglob` option in bash, except\nthat it does not resolve escaped pattern characters.\n\nIf brace expansion is not disabled, then it is performed before any\nother interpretation of the glob pattern. Thus, a pattern like\n`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded\n**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are\nchecked for validity. Since those two are valid, matching proceeds.\n# isarray\n\n`Array#isArray` for older browsers.\n\n[](http://travis-ci.org/juliangruber/isarray)\n[](https://www.npmjs.org/package/isarray)\n\n[\n](https://ci.testling.com/juliangruber/isarray)\n\n## Usage\n\n```js\nvar isArray = require('isarray');\n\nconsole.log(isArray([])); // => true\nconsole.log(isArray({})); // => false\n```\n\n## Installation\n\nWith [npm](http://npmjs.org) do\n\n```bash\n$ npm install isarray\n```\n\nThen bundle for the browser with\n[browserify](https://github.com/substack/browserify).\n\nWith [component](http://component.io) do\n\n```bash\n$ component install juliangruber/isarray\n```\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Why use this?\n\n1. [it's fast](#benchmarks) | [optimizations](#optimizations)\n2. [better type checking](#better-type-checking)\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Release history\n\n### v4.0.0\n\n**Added**\n\n* `promise` support\n\n### v5.0.0\n\n**Added**\n\n* `Set Iterator` and `Map Iterator` support\n\n**Fixed**\n\n* Now returns `generatorfunction` for generator functions\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n4. There is no reason to make the code in a microlib as terse as possible, just to win points for making it shorter. It's always better to favor performant code over terse code. You will always only be using a single `require()` statement to use the library anyway, regardless of how the code is written.\n\n## Better type checking\n\nkind-of is more correct than other type checking libs I've looked at. For example, here are some differing results from other popular libs:\n\n### [typeof](https://github.com/CodingFu/typeof) lib\n\nIncorrectly tests instances of custom constructors (pretty common):\n\n```js\nvar typeOf = require('typeof');\nfunction Test() {}\nconsole.log(typeOf(new Test()));\n//=> 'test'\n```\n\nReturns `object` instead of `arguments`:\n\n```js\nfunction foo() {\n console.log(typeOf(arguments)) //=> 'object'\n}\nfoo();\n```\n\n### [type-of](https://github.com/ForbesLindesay/type-of) lib\n\nIncorrectly returns `object` for generator functions, buffers, `Map`, `Set`, `WeakMap` and `WeakSet`:\n\n```js\nfunction * foo() {}\nconsole.log(typeOf(foo));\n//=> 'object'\nconsole.log(typeOf(new Buffer('')));\n//=> 'object'\nconsole.log(typeOf(new Map()));\n//=> 'object'\nconsole.log(typeOf(new Set()));\n//=> 'object'\nconsole.log(typeOf(new WeakMap()));\n//=> 'object'\nconsole.log(typeOf(new WeakSet()));\n//=> 'object'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n<details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n<details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n<details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 82 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 3 | [aretecode](https://github.com/aretecode) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n| 1 | [charlike](https://github.com/charlike) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on October 13, 2017._\n# md5.js\n\n[](https://www.npmjs.org/package/md5.js)\n[](https://travis-ci.org/crypto-browserify/md5.js)\n[](https://david-dm.org/crypto-browserify/md5.js#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nNode style `md5` on pure JavaScript.\n\nFrom [NIST SP 800-131A][1]: *md5 is no longer acceptable where collision resistance is required such as digital signatures.*\n\n## Example\n\n```js\nvar MD5 = require('md5.js')\n\nconsole.log(new MD5().update('42').digest('hex'))\n// => a1d0c6e83f027327d8461063f4ac58a6\n\nvar md5stream = new MD5()\nmd5stream.end('42')\nconsole.log(md5stream.read().toString('hex'))\n// => a1d0c6e83f027327d8461063f4ac58a6\n```\n\n## LICENSE [MIT](LICENSE)\n\n[1]: http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-131Ar1.pdf\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![chat][chat]][chat-url]\n\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\"\n src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n <h1>Style Loader</h1>\n <p>Adds CSS to the DOM by injecting a <code><style></code> tag</p>\n</div>\n\n<h2 align=\"center\">Install</h2>\n\n```bash\nnpm install style-loader --save-dev\n```\n\n<h2 align=\"center\">Usage</h2>\n\nIt's recommended to combine `style-loader` with the [`css-loader`](https://github.com/webpack/css-loader)\n\n**component.js**\n```js\nimport style from './file.css'\n```\n\n**webpack.config.js**\n```js\n{\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: [\n { loader: \"style-loader\" },\n { loader: \"css-loader\" }\n ]\n }\n ]\n }\n}\n```\n\n#### `Locals (CSS Modules)`\n\nWhen using [local scoped CSS](https://github.com/webpack/css-loader#css-scope) the module exports the generated identifiers (locals).\n\n**component.js**\n```js\nimport style from './file.css'\n\nstyle.className === \"z849f98ca812\"\n```\n\n### `Url`\n\nIt's also possible to add a URL `<link href=\"path/to/file.css\" rel=\"stylesheet\">` instead of inlining the CSS `{String}` with `<style></style>` tag.\n\n```js\nimport url from 'file.css'\n```\n\n**webpack.config.js**\n```js\n{\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: [\n { loader: \"style-loader/url\" },\n { loader: \"file-loader\" }\n ]\n }\n ]\n }\n}\n```\n\n```html\n<link rel=\"stylesheet\" href=\"path/to/file.css\">\n```\n\n> ℹ️ Source maps and assets referenced with `url`: when style loader is used with `{ options: { sourceMap: true } }` option, the CSS modules will be generated as `Blob`s, so relative paths don't work (they would be relative to `chrome:blob` or `chrome:devtools`). In order for assets to maintain correct paths setting `output.publicPath` property of webpack configuration must be set, so that absolute paths are generated. Alternatively you can enable the `convertToAbsoluteUrls` option mentioned above.\n\n### `Useable`\n\nThe `style-loader` injects the styles lazily making them useable on-demand via `style.use()` / `style.unuse()`\n\nBy convention the `Reference Counter API` should be bound to `.useable.css` and the `.css` should be loaded with basic `style-loader` usage.(similar to other file types, i.e. `.useable.less` and `.less`).\n\n**webpack.config.js**\n```js\n{\n module: {\n rules: [\n {\n test: /\\.css$/,\n use: [\n { loader: \"style-loader\" },\n { loader: \"css-loader\" },\n ],\n },\n {\n test: /\\.useable\\.css$/,\n use: [\n {\n loader: \"style-loader/useable\"\n },\n { loader: \"css-loader\" },\n ],\n },\n ],\n },\n}\n```\n\n#### `Reference Counter API`\n\n**component.js**\n```js\nimport style from './file.css'\n\nstyle.use(); // = style.ref();\nstyle.unuse(); // = style.unref();\n```\n\nStyles are not added on `import/require()`, but instead on call to `use`/`ref`. Styles are removed from page if `unuse`/`unref` is called exactly as often as `use`/`ref`.\n\n> ⚠️ Behavior is undefined when `unuse`/`unref` is called more often than `use`/`ref`. Don't do that.\n\n<h2 align=\"center\">Options</h2>\n\n|Name|Type|Default|Description|\n|:--:|:--:|:-----:|:----------|\n|**`hmr`**|`{Boolean}`|`true`|Enable/disable Hot Module Replacement (HMR), if disabled no HMR Code will be added (good for non local development/production)|\n|**`base`** |`{Number}`|`true`|Set module ID base (DLLPlugin)|\n|**`attrs`**|`{Object}`|`{}`|Add custom attrs to `<style></style>`|\n|**`transform`** |`{Function}`|`false`|Transform/Conditionally load CSS by passing a transform/condition function|\n|**`insertAt`**|`{String\\|Object}`|`bottom`|Inserts `<style></style>` at the given position|\n|**`insertInto`**|`{String\\|Function}`|`<head>`|Inserts `<style></style>` into the given position|\n|**`singleton`**|`{Boolean}`|`undefined`|Reuses a single `<style></style>` element, instead of adding/removing individual elements for each required module.|\n|**`sourceMap`**|`{Boolean}`|`false`|Enable/Disable Sourcemaps|\n|**`convertToAbsoluteUrls`**|`{Boolean}`|`false`|Converts relative URLs to absolute urls, when source maps are enabled|\n\n### `hmr`\n\nEnable/disable Hot Module Replacement (HMR), if disabled no HMR Code will be added.\nThis could be used for non local development and production.\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n hmr: false\n }\n}\n```\n\n### `base`\n\nThis setting is primarily used as a workaround for [css clashes](https://github.com/webpack-contrib/style-loader/issues/163) when using one or more [DllPlugin](https://robertknight.github.io/posts/webpack-dll-plugins/)'s. `base` allows you to prevent either the *app*'s css (or *DllPlugin2*'s css) from overwriting *DllPlugin1*'s css by specifying a css module id base which is greater than the range used by *DllPlugin1* e.g.:\n\n**webpack.dll1.config.js**\n```js\n{\n test: /\\.css$/,\n use: [\n 'style-loader',\n 'css-loader'\n ]\n}\n```\n\n**webpack.dll2.config.js**\n```js\n{\n test: /\\.css$/,\n use: [\n { loader: 'style-loader', options: { base: 1000 } },\n 'css-loader'\n ]\n}\n```\n\n**webpack.app.config.js**\n```\n{\n test: /\\.css$/,\n use: [\n { loader: 'style-loader', options: { base: 2000 } },\n 'css-loader'\n ]\n}\n```\n\n### `attrs`\n\nIf defined, style-loader will attach given attributes with their values on `<style>` / `<link>` element.\n\n**component.js**\n```js\nimport style from './file.css'\n```\n\n**webpack.config.js**\n```js\n{\n test: /\\.css$/,\n use: [\n { loader: 'style-loader', options: { attrs: { id: 'id' } } }\n { loader: 'css-loader' }\n ]\n}\n```\n\n```html\n<style id=\"id\"></style>\n```\n\n#### `Url`\n\n**component.js**\n```js\nimport link from './file.css'\n```\n\n**webpack.config.js**\n```js\n{\n test: /\\.css$/,\n use: [\n { loader: 'style-loader/url', options: { attrs: { id: 'id' } } }\n { loader: 'file-loader' }\n ]\n}\n```\n\n### `transform`\n\nA `transform` is a function that can modify the css just before it is loaded into the page by the style-loader.\nThis function will be called on the css that is about to be loaded and the return value of the function will be loaded into the page instead of the original css.\nIf the return value of the `transform` function is falsy, the css will not be loaded into the page at all.\n\n> ⚠️ In case you are using ES Module syntax in `tranform.js` then, you **need to transpile** it or otherwise it will throw an `{Error}`.\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n transform: 'path/to/transform.js'\n }\n}\n```\n\n**transform.js**\n```js\nmodule.exports = function (css) {\n // Here we can change the original css\n const transformed = css.replace('.classNameA', '.classNameB')\n\n return transformed\n}\n```\n\n#### `Conditional`\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n transform: 'path/to/conditional.js'\n }\n}\n```\n\n**conditional.js**\n```js\nmodule.exports = function (css) {\n // If the condition is matched load [and transform] the CSS\n if (css.includes('something I want to check')) {\n return css;\n }\n // If a falsy value is returned, the CSS won't be loaded\n return false\n}\n```\n\n### `insertAt`\n\nBy default, the style-loader appends `<style>` elements to the end of the style target, which is the `<head>` tag of the page unless specified by `insertInto`. This will cause CSS created by the loader to take priority over CSS already present in the target. To insert style elements at the beginning of the target, set this query parameter to 'top', e.g\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n insertAt: 'top'\n }\n}\n```\n\nA new `<style>` element can be inserted before a specific element by passing an object, e.g.\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n insertAt: {\n before: '#id'\n }\n }\n}\n```\n\n### `insertInto`\nBy default, the style-loader inserts the `<style>` elements into the `<head>` tag of the page. If you want the tags to be inserted somewhere else you can specify a CSS selector for that element here. If you target an [IFrame](https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement) make sure you have sufficient access rights, the styles will be injected into the content document head.\n\nYou can also pass function to override default behavior and insert styles in your container, e.g\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n insertInto: () => document.querySelector(\"#root\"),\n }\n}\n```\n\nUsing function you can insert the styles into a [ShadowRoot](https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot), e.g\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n insertInto: () => document.querySelector(\"#root\").shadowRoot,\n }\n}\n```\n\n### `singleton`\n\nIf defined, the style-loader will reuse a single `<style></style>` element, instead of adding/removing individual elements for each required module.\n\n> ℹ️ This option is on by default in IE9, which has strict limitations on the number of style tags allowed on a page. You can enable or disable it with the singleton option.\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n singleton: true\n }\n}\n```\n\n### `sourceMap`\n\nEnable/Disable source map loading\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n sourceMap: true\n }\n}\n```\n\n### `convertToAbsoluteUrls`\n\nIf convertToAbsoluteUrls and sourceMaps are both enabled, relative urls will be converted to absolute urls right before the css is injected into the page. This resolves [an issue](https://github.com/webpack/style-loader/pull/96) where relative resources fail to load when source maps are enabled. You can enable it with the convertToAbsoluteUrls option.\n\n**webpack.config.js**\n```js\n{\n loader: 'style-loader',\n options: {\n sourceMap: true,\n convertToAbsoluteUrls: true\n }\n}\n```\n\n<h2 align=\"center\">Maintainers</h2>\n\n<table>\n <tbody>\n <tr>\n <td align=\"center\">\n <a href=\"https://github.com/bebraw\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/bebraw.png?v=3&s=150\">\n </br>\n Juho Vepsäläinen\n </a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/d3viant0ne\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/d3viant0ne.png?v=3&s=150\">\n </br>\n Joshua Wiens\n </a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/sapegin\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/sapegin.png?v=3&s=150\">\n </br>\n Artem Sapegin\n </a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/michael-ciniawsky\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/michael-ciniawsky.png?v=3&s=150\">\n </br>\n Michael Ciniawsky\n </a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/evilebottnawi\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/evilebottnawi.png?v=3&s=150\">\n </br>\n Alexander Krasnoyarov\n </a>\n </td>\n </tr>\n <tr>\n <td align=\"center\">\n <a href=\"https://github.com/sokra\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/sokra.png?v=3&s=150\">\n </br>\n Tobias Koppers\n </a>\n </td>\n <td align=\"center\">\n <a href=\"https://github.com/SpaceK33z\">\n <img width=\"150\" height=\"150\" src=\"https://github.com/SpaceK33z.png?v=3&s=150\">\n </br>\n Kees Kluskens\n </a>\n </td>\n <tr>\n <tbody>\n</table>\n\n[npm]: https://img.shields.io/npm/v/style-loader.svg\n[npm-url]: https://npmjs.com/package/style-loader\n\n[node]: https://img.shields.io/node/v/style-loader.svg\n[node-url]: https://nodejs.org\n\n[deps]: https://david-dm.org/webpack/style-loader.svg\n[deps-url]: https://david-dm.org/webpack/file-loader\n\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\nThis folder contains entry points for all `core-js` features with dependencies. It's the recommended way for usage only required features.\n# ansi-colors [](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [](https://www.npmjs.com/package/ansi-colors) [](https://npmjs.org/package/ansi-colors) [](https://npmjs.org/package/ansi-colors) [](https://travis-ci.org/doowb/ansi-colors)\n\n> Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).\n\nPlease consider following this project's author, [Brian Woodward](https://github.com/doowb), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save ansi-colors\n```\n\n\n\n## Why use this?\n\nansi-colors is _the fastest Node.js library for terminal styling_. A more performant drop-in replacement for chalk, with no dependencies.\n\n* _Blazing fast_ - Fastest terminal styling library in node.js, 10-20x faster than chalk!\n\n* _Drop-in replacement_ for [chalk](https://github.com/chalk/chalk).\n* _No dependencies_ (Chalk has 7 dependencies in its tree!)\n\n* _Safe_ - Does not modify the `String.prototype` like [colors](https://github.com/Marak/colors.js).\n* Supports [nested colors](#nested-colors), **and does not have the [nested styling bug](#nested-styling-bug) that is present in [colorette](https://github.com/jorgebucaran/colorette), [chalk](https://github.com/chalk/chalk), and [kleur](https://github.com/lukeed/kleur)**.\n* Supports [chained colors](#chained-colors).\n* [Toggle color support](#toggle-color-support) on or off.\n\n## Usage\n\n```js\nconst c = require('ansi-colors');\n\nconsole.log(c.red('This is a red string!'));\nconsole.log(c.green('This is a red string!'));\nconsole.log(c.cyan('This is a cyan string!'));\nconsole.log(c.yellow('This is a yellow string!'));\n```\n\n\n\n## Chained colors\n\n```js\nconsole.log(c.bold.red('this is a bold red message'));\nconsole.log(c.bold.yellow.italic('this is a bold yellow italicized message'));\nconsole.log(c.green.bold.underline('this is a bold green underlined message'));\n```\n\n\n\n## Nested colors\n\n```js\nconsole.log(c.yellow(`foo ${c.red.bold('red')} bar ${c.cyan('cyan')} baz`));\n```\n\n\n\n### Nested styling bug\n\n`ansi-colors` does not have the nested styling bug found in [colorette](https://github.com/jorgebucaran/colorette), [chalk](https://github.com/chalk/chalk), and [kleur](https://github.com/lukeed/kleur).\n\n```js\nconst { bold, red } = require('ansi-styles');\nconsole.log(bold(`foo ${red.dim('bar')} baz`));\n\nconst colorette = require('colorette');\nconsole.log(colorette.bold(`foo ${colorette.red(colorette.dim('bar'))} baz`));\n\nconst kleur = require('kleur');\nconsole.log(kleur.bold(`foo ${kleur.red.dim('bar')} baz`));\n\nconst chalk = require('chalk');\nconsole.log(chalk.bold(`foo ${chalk.red.dim('bar')} baz`));\n```\n\n**Results in the following**\n\n(sans icons and labels)\n\n\n\n## Toggle color support\n\nEasily enable/disable colors.\n\n```js\nconst c = require('ansi-colors');\n\n// disable colors manually\nc.enabled = false;\n\n// or use a library to automatically detect support\nc.enabled = require('color-support').hasBasic;\n\nconsole.log(c.red('I will only be colored red if the terminal supports colors'));\n```\n\n## Strip ANSI codes\n\nUse the `.unstyle` method to strip ANSI codes from a string.\n\n```js\nconsole.log(c.unstyle(c.blue.bold('foo bar baz')));\n//=> 'foo bar baz'\n```\n\n## Available styles\n\n**Note** that bright and bright-background colors are not always supported.\n\n| Colors | Background Colors | Bright Colors | Bright Background Colors |\n| ------- | ----------------- | ------------- | ------------------------ |\n| black | bgBlack | blackBright | bgBlackBright |\n| red | bgRed | redBright | bgRedBright |\n| green | bgGreen | greenBright | bgGreenBright |\n| yellow | bgYellow | yellowBright | bgYellowBright |\n| blue | bgBlue | blueBright | bgBlueBright |\n| magenta | bgMagenta | magentaBright | bgMagentaBright |\n| cyan | bgCyan | cyanBright | bgCyanBright |\n| white | bgWhite | whiteBright | bgWhiteBright |\n| gray | | | |\n| grey | | | |\n\n_(`gray` is the U.S. spelling, `grey` is more commonly used in the Canada and U.K.)_\n\n### Style modifiers\n\n* dim\n* **bold**\n\n* hidden\n* _italic_\n\n* underline\n* inverse\n* ~~strikethrough~~\n\n* reset\n\n## Performance\n\n**Libraries tested**\n\n* ansi-colors v3.0.4\n* chalk v2.4.1\n\n### Mac\n\n> MacBook Pro, Intel Core i7, 2.3 GHz, 16 GB.\n\n**Load time**\n\nTime it takes to load the first time `require()` is called:\n\n* ansi-colors - `1.915ms`\n* chalk - `12.437ms`\n\n**Benchmarks**\n\n```\n# All Colors\n ansi-colors x 173,851 ops/sec ±0.42% (91 runs sampled)\n chalk x 9,944 ops/sec ±2.53% (81 runs sampled)))\n\n# Chained colors\n ansi-colors x 20,791 ops/sec ±0.60% (88 runs sampled)\n chalk x 2,111 ops/sec ±2.34% (83 runs sampled)\n\n# Nested colors\n ansi-colors x 59,304 ops/sec ±0.98% (92 runs sampled)\n chalk x 4,590 ops/sec ±2.08% (82 runs sampled)\n```\n\n### Windows\n\n> Windows 10, Intel Core i7-7700k CPU @ 4.2 GHz, 32 GB\n\n**Load time**\n\nTime it takes to load the first time `require()` is called:\n\n* ansi-colors - `1.494ms`\n* chalk - `11.523ms`\n\n**Benchmarks**\n\n```\n# All Colors\n ansi-colors x 193,088 ops/sec ±0.51% (95 runs sampled))\n chalk x 9,612 ops/sec ±3.31% (77 runs sampled)))\n\n# Chained colors\n ansi-colors x 26,093 ops/sec ±1.13% (94 runs sampled)\n chalk x 2,267 ops/sec ±2.88% (80 runs sampled))\n\n# Nested colors\n ansi-colors x 67,747 ops/sec ±0.49% (93 runs sampled)\n chalk x 4,446 ops/sec ±3.01% (82 runs sampled))\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [ansi-wrap](https://www.npmjs.com/package/ansi-wrap): Create ansi colors by passing the open and close codes. | [homepage](https://github.com/jonschlinkert/ansi-wrap \"Create ansi colors by passing the open and close codes.\")\n* [strip-color](https://www.npmjs.com/package/strip-color): Strip ANSI color codes from a string. No dependencies. | [homepage](https://github.com/jonschlinkert/strip-color \"Strip ANSI color codes from a string. No dependencies.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- | \n| 42 | [doowb](https://github.com/doowb) | \n| 38 | [jonschlinkert](https://github.com/jonschlinkert) | \n| 6 | [lukeed](https://github.com/lukeed) | \n| 2 | [Silic0nS0ldier](https://github.com/Silic0nS0ldier) | \n| 1 | [dwieeb](https://github.com/dwieeb) | \n| 1 | [jorgebucaran](https://github.com/jorgebucaran) | \n| 1 | [madhavarshney](https://github.com/madhavarshney) | \n| 1 | [chapterjason](https://github.com/chapterjason) | \n\n### Author\n\n**Brian Woodward**\n\n* [GitHub Profile](https://github.com/doowb)\n* [Twitter Profile](https://twitter.com/doowb)\n* [LinkedIn Profile](https://linkedin.com/in/woodwardbrian)\n\nPlease consider supporting me on Patreon, or [start your own Patreon page](https://patreon.com/invite/bxpbvm)!\n\n<a href=\"https://www.patreon.com/jonschlinkert\">\n<img src=\"https://c5.patreon.com/external/logo/become_a_patron_button@2x.png\" height=\"50\">\n</a>\n\n### License\n\nCopyright © 2019, [Brian Woodward](https://github.com/doowb).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on March 03, 2019._\nunique-filename\n===============\n\nGenerate a unique filename for use in temporary directories or caches.\n\n```\nvar uniqueFilename = require('unique-filename')\n\n// returns something like: /tmp/912ec803b2ce49e4a541068d495ab570\nvar randomTmpfile = uniqueFilename(os.tmpdir())\n\n// returns something like: /tmp/my-test-912ec803b2ce49e4a541068d495ab570\nvar randomPrefixedTmpfile = uniqueFilename(os.tmpdir(), 'my-test')\n\nvar uniqueTmpfile = uniqueFilename('/tmp', 'testing', '/my/thing/to/uniq/on')\n```\n\n### uniqueFilename(*dir*, *fileprefix*, *uniqstr*) → String\n\nReturns the full path of a unique filename that looks like:\n`dir/prefix-7ddd44c0`\nor `dir/7ddd44c0`\n\n*dir* – The path you want the filename in. `os.tmpdir()` is a good choice for this.\n\n*fileprefix* – A string to append prior to the unique part of the filename.\nThe parameter is required if *uniqstr* is also passed in but is otherwise\noptional and can be `undefined`/`null`/`''`. If present and not empty\nthen this string plus a hyphen are prepended to the unique part.\n\n*uniqstr* – Optional, if not passed the unique part of the resulting\nfilename will be random. If passed in it will be generated from this string\nin a reproducable way.\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)\n[](#sponsors)\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nA tiny JavaScript debugging utility modelled after Node.js core's debugging\ntechnique. Works in Node.js and web browsers.\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample [_app.js_](./examples/node/app.js):\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %o', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample [_worker.js_](./examples/node/worker.js):\n\n```js\nvar a = require('debug')('worker:a')\n , b = require('debug')('worker:b');\n\nfunction work() {\n a('doing lots of uninteresting work');\n setTimeout(work, Math.random() * 1000);\n}\n\nwork();\n\nfunction workb() {\n b('doing some work');\n setTimeout(workb, Math.random() * 2000);\n}\n\nworkb();\n```\n\nThe `DEBUG` environment variable is then used to enable these based on space or\ncomma-delimited names.\n\nHere are some examples:\n\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 04 pm\" src=\"https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 38 pm\" src=\"https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 25 pm\" src=\"https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png\">\n\n#### Windows command prompt notes\n\n##### CMD\n\nOn Windows the environment variable is set using the `set` command.\n\n```cmd\nset DEBUG=*,-not_this\n```\n\nExample:\n\n```cmd\nset DEBUG=* & node app.js\n```\n\n##### PowerShell (VS Code default)\n\nPowerShell uses different syntax to set environment variables.\n\n```cmd\n$env:DEBUG = \"*,-not_this\"\n```\n\nExample:\n\n```cmd\n$env:DEBUG='app';node app.js\n```\n\nThen, run the program to be debugged as usual.\n\nnpm script example:\n```js\n \"windowsDebug\": \"@powershell -Command $env:DEBUG='*';node app.js\",\n```\n\n## Namespace Colors\n\nEvery debug instance has a color generated for it based on its namespace name.\nThis helps when visually parsing the debug output to identify which debug instance\na debug line belongs to.\n\n#### Node.js\n\nIn Node.js, colors are enabled when stderr is a TTY. You also _should_ install\nthe [`supports-color`](https://npmjs.org/supports-color) module alongside debug,\notherwise debug will only use a small handful of basic colors.\n\n<img width=\"521\" src=\"https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png\">\n\n#### Web Browser\n\nColors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\noption. These are WebKit web inspectors, Firefox ([since version\n31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\nand the Firebug plugin for Firefox (any version).\n\n<img width=\"524\" src=\"https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png\">\n\n## Millisecond diff\n\nWhen actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nWhen stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png\">\n\n## Conventions\n\nIf you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\". If you append a \"*\" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.\n\n## Wildcards\n\nThe `*` character may be used as a wildcard. Suppose for example your library has\ndebuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\",\ninstead of listing all three with\n`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do\n`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\nYou can also exclude specific debuggers by prefixing them with a \"-\" character.\nFor example, `DEBUG=*,-connect:*` would include all debuggers except those\nstarting with \"connect:\".\n\n## Environment Variables\n\nWhen running through Node.js, you can set a few environment variables that will\nchange the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n__Note:__ The environment variables beginning with `DEBUG_` end up being\nconverted into an Options object that gets used with `%o`/`%O` formatters.\nSee the Node.js documentation for\n[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\nfor the complete list.\n\n## Formatters\n\nDebug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.\nBelow are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\nYou can add custom formatters by extending the `debug.formatters` object.\nFor example, if you wanted to add support for rendering a Buffer as hex with\n`%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser Support\n\nYou can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\nor just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\nif you don't want to build it yourself.\n\nDebug's enable state is currently persisted by `localStorage`.\nConsider the situation shown below where you have `worker:a` and `worker:b`,\nand wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample [_stdout.js_](./examples/node/stdout.js):\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Extend\nYou can simply extend debugger \n```js\nconst log = require('debug')('auth');\n\n//creates new debug instance with extended namespace\nconst logSign = log.extend('sign');\nconst logLogin = log.extend('login');\n\nlog('hello'); // auth hello\nlogSign('hello'); //auth:sign hello\nlogLogin('hello'); //auth:login hello\n```\n\n## Set dynamically\n\nYou can also enable debug dynamically by calling the `enable()` method :\n\n```js\nlet debug = require('debug');\n\nconsole.log(1, debug.enabled('test'));\n\ndebug.enable('test');\nconsole.log(2, debug.enabled('test'));\n\ndebug.disable();\nconsole.log(3, debug.enabled('test'));\n\n```\n\nprint : \n```\n1 false\n2 true\n3 false\n```\n\nUsage : \n`enable(namespaces)` \n`namespaces` can include modes separated by a colon and wildcards.\n \nNote that calling `enable()` completely overrides previously set DEBUG variable : \n\n```\n$ DEBUG=foo node -e 'var dbg = require(\"debug\"); dbg.enable(\"bar\"); console.log(dbg.enabled(\"foo\"))'\n=> false\n```\n\n`disable()`\n\nWill disable all namespaces. The functions returns the namespaces currently\nenabled (and skipped). This can be useful if you want to disable debugging\ntemporarily without knowing what was enabled to begin with.\n\nFor example:\n\n```js\nlet debug = require('debug');\ndebug.enable('foo:*,-foo:bar');\nlet namespaces = debug.disable();\ndebug.enable(namespaces);\n```\n\nNote: There is no guarantee that the string will be identical to the initial\nenable string, but semantically they will be identical.\n\n## Checking whether a debug target is enabled\n\nAfter you've created a debug instance, you can determine whether or not it is\nenabled by checking the `enabled` property:\n\n```javascript\nconst debug = require('debug')('http');\n\nif (debug.enabled) {\n // do stuff...\n}\n```\n\nYou can also manually toggle this property to force the debug instance to be\nenabled or disabled.\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n\n## Backers\n\nSupport us with a monthly donation and help us continue our activities. 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src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# SPDY Server for node.js\n\n[](http://travis-ci.org/spdy-http2/node-spdy)\n[](http://badge.fury.io/js/spdy)\n[](https://david-dm.org/spdy-http2/node-spdy)\n[](http://standardjs.com/)\n[](https://waffle.io/spdy-http2/node-spdy)\n\nWith this module you can create [HTTP2][0] / [SPDY][1] servers\nin node.js with natural http module interface and fallback to regular https\n(for browsers that don't support neither HTTP2, nor SPDY yet).\n\nThis module named `spdy` but it [provides](https://github.com/indutny/node-spdy/issues/269#issuecomment-239014184) support for both http/2 (h2) and spdy (2,3,3.1). Also, `spdy` is compatible with Express.\n\n## Usage\n\n### Examples\n\nServer:\n```javascript\nvar spdy = require('spdy'),\n fs = require('fs');\n\nvar options = {\n // Private key\n key: fs.readFileSync(__dirname + '/keys/spdy-key.pem'),\n\n // Fullchain file or cert file (prefer the former)\n cert: fs.readFileSync(__dirname + '/keys/spdy-fullchain.pem'),\n\n // **optional** SPDY-specific options\n spdy: {\n protocols: [ 'h2', 'spdy/3.1', ..., 'http/1.1' ],\n plain: false,\n\n // **optional**\n // Parse first incoming X_FORWARDED_FOR frame and put it to the\n // headers of every request.\n // NOTE: Use with care! This should not be used without some proxy that\n // will *always* send X_FORWARDED_FOR\n 'x-forwarded-for': true,\n\n connection: {\n windowSize: 1024 * 1024, // Server's window size\n\n // **optional** if true - server will send 3.1 frames on 3.0 *plain* spdy\n autoSpdy31: false\n }\n }\n};\n\nvar server = spdy.createServer(options, function(req, res) {\n res.writeHead(200);\n res.end('hello world!');\n});\n\nserver.listen(3000);\n```\n\nClient:\n```javascript\nvar spdy = require('spdy');\nvar https = require('https');\n\nvar agent = spdy.createAgent({\n host: 'www.google.com',\n port: 443,\n\n // Optional SPDY options\n spdy: {\n plain: false,\n ssl: true,\n\n // **optional** send X_FORWARDED_FOR\n 'x-forwarded-for': '127.0.0.1'\n }\n});\n\nhttps.get({\n host: 'www.google.com',\n agent: agent\n}, function(response) {\n console.log('yikes');\n // Here it goes like with any other node.js HTTP request\n // ...\n // And once we're done - we may close TCP connection to server\n // NOTE: All non-closed requests will die!\n agent.close();\n}).end();\n```\n\nPlease note that if you use a custom agent, by default all connection-level\nerrors will result in an uncaught exception. To handle these errors subscribe\nto the `error` event and re-emit the captured error:\n\n```javascript\nvar agent = spdy.createAgent({\n host: 'www.google.com',\n port: 443\n}).once('error', function (err) {\n this.emit(err);\n});\n```\n\n#### Push streams\n\nIt is possible to initiate [PUSH_PROMISE][5] to send content to clients _before_\nthe client requests it.\n\n```javascript\nspdy.createServer(options, function(req, res) {\n var stream = res.push('/main.js', {\n status: 200, // optional\n method: 'GET', // optional\n request: {\n accept: '*/*'\n },\n response: {\n 'content-type': 'application/javascript'\n }\n });\n stream.on('error', function() {\n });\n stream.end('alert(\"hello from push stream!\");');\n\n res.end('<script src=\"/main.js\"></script>');\n}).listen(3000);\n```\n\n[PUSH_PROMISE][5] may be sent using the `push()` method on the current response\nobject. The signature of the `push()` method is:\n\n`.push('/some/relative/url', { request: {...}, response: {...} }, callback)`\n\nSecond argument contains headers for both PUSH_PROMISE and emulated response.\n`callback` will receive two arguments: `err` (if any error is happened) and a\n[Duplex][4] stream as the second argument.\n\nClient usage:\n```javascript\nvar agent = spdy.createAgent({ /* ... */ });\nvar req = http.get({\n host: 'www.google.com',\n agent: agent\n}, function(response) {\n});\nreq.on('push', function(stream) {\n stream.on('error', function(err) {\n // Handle error\n });\n // Read data from stream\n});\n```\n\nNOTE: You're responsible for the `stream` object once given it in `.push()`\ncallback or `push` event. Hence ignoring `error` event on it will result in\nuncaught exception and crash your program.\n\n#### Trailing headers\n\nServer usage:\n```javascript\nfunction (req, res) {\n // Send trailing headers to client\n res.addTrailers({ header1: 'value1', header2: 'value2' });\n\n // On client's trailing headers\n req.on('trailers', function(headers) {\n // ...\n });\n}\n```\n\nClient usage:\n```javascript\nvar req = http.request({ agent: spdyAgent, /* ... */ }).function (res) {\n // On server's trailing headers\n res.on('trailers', function(headers) {\n // ...\n });\n});\nreq.write('stuff');\nreq.addTrailers({ /* ... */ });\nreq.end();\n```\n\n#### Options\n\nAll options supported by [tls][2] work with node-spdy.\n\nAdditional options may be passed via `spdy` sub-object:\n\n* `plain` - if defined, server will ignore NPN and ALPN data and choose whether\n to use spdy or plain http by looking at first data packet.\n* `ssl` - if `false` and `options.plain` is `true`, `http.Server` will be used\n as a `base` class for created server.\n* `maxChunk` - if set and non-falsy, limits number of bytes sent in one DATA\n chunk. Setting it to non-zero value is recommended if you care about\n interleaving of outgoing data from multiple different streams.\n (defaults to 8192)\n* `protocols` - list of NPN/ALPN protocols to use (default is:\n `['h2','spdy/3.1', 'spdy/3', 'spdy/2','http/1.1', 'http/1.0']`)\n* `protocol` - use specific protocol if no NPN/ALPN ex In addition,\n* `maxStreams` - set \"[maximum concurrent streams][3]\" protocol option\n\n### API\n\nAPI is compatible with `http` and `https` module, but you can use another\nfunction as base class for SPDYServer.\n\n```javascript\nspdy.createServer(\n [base class constructor, i.e. https.Server],\n { /* keys and options */ }, // <- the only one required argument\n [request listener]\n).listen([port], [host], [callback]);\n```\n\nRequest listener will receive two arguments: `request` and `response`. They're\nboth instances of `http`'s `IncomingMessage` and `OutgoingMessage`. But three\ncustom properties are added to both of them: `isSpdy`, `spdyVersion`. `isSpdy`\nis `true` when the request was processed using HTTP2/SPDY protocols, it is\n`false` in case of HTTP/1.1 fallback. `spdyVersion` is either of: `2`, `3`,\n`3.1`, or `4` (for HTTP2).\n\n#### Contributors\n\n* [Fedor Indutny](https://github.com/indutny)\n* [Chris Strom](https://github.com/eee-c)\n* [François de Metz](https://github.com/francois2metz)\n* [Ilya Grigorik](https://github.com/igrigorik)\n* [Roberto Peon](https://github.com/grmocg)\n* [Tatsuhiro Tsujikawa](https://github.com/tatsuhiro-t)\n* [Jesse Cravens](https://github.com/jessecravens)\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: https://http2.github.io/\n[1]: http://www.chromium.org/spdy\n[2]: http://nodejs.org/docs/latest/api/tls.html#tls.createServer\n[3]: https://httpwg.github.io/specs/rfc7540.html#SETTINGS_MAX_CONCURRENT_STREAMS\n[4]: https://iojs.org/api/stream.html#stream_class_stream_duplex\n[5]: https://httpwg.github.io/specs/rfc7540.html#PUSH_PROMISE\n# Handle Thing\n\n[](http://travis-ci.org/spdy-http2/handle-thing)\n[](http://badge.fury.io/js/handle-thing)\n[](https://david-dm.org/spdy-http2/handle-thing)\n[](http://standardjs.com/)\n[](https://waffle.io/spdy-http2/node-spdy)\n\n> Wrap Streams2 instance into a HandleWrap. The right thing when you need it\n\n## Usage\n\n### Examples\n\n`soon™`\n\n### API\n\n`soon™`\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\nSockJS-node Echo example\n========================\n\nTo run this example, first install dependencies:\n\n npm install\n\nAnd run a server:\n\n node server.js\n\nThat will spawn an http server at http://127.0.0.1:9999/ which will\nserve both html (served from the current directory) and also SockJS\nserver (under the [/echo](http://127.0.0.1:9999/echo) path).\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n</div>\n\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n\n# webpack-dev-server\n\nUse [webpack](https://webpack.js.org) with a development server that provides\nlive reloading. This should be used for **development only**.\n\nIt uses [webpack-dev-middleware][middleware-url] under the hood, which provides\nfast in-memory access to the webpack assets.\n\n## Table of Contents\n\n1. [Getting Started](#getting-started)\n2. [Usage](#usage)\n3. [Browser Support](#browser-support)\n4. [Support](#support)\n5. [Contributing](#contributing)\n6. [Maintainers](#maintainers)\n7. [Attribution](#attribution)\n8. [License](#license)\n\n## Getting Started\n\nFirst things first, install the module:\n\n```console\nnpm install webpack-dev-server --save-dev\n```\n\n_Note: While you can install and run webpack-dev-server globally, we recommend\ninstalling it locally. webpack-dev-server will always use a local installation\nover a global one._\n\n## Usage\n\nThere are two main, recommended methods of using the module:\n\n### With the CLI\n\nThe easiest way to use it is with the CLI. In the directory where your\n`webpack.config.js` is, run:\n\n```console\nnode_modules/.bin/webpack-dev-server\n```\n\n_**Note**: Many CLI options are available with `webpack-dev-server`. Explore this [link](https://webpack.js.org/configuration/dev-server/)._\n\n### With NPM Scripts\n\nNPM package.json scripts are a convenient and useful means to run locally installed\nbinaries without having to be concerned about their full paths. Simply define a\nscript as such:\n\n```json\n\"scripts\": {\n \"start:dev\": \"webpack-dev-server\"\n}\n```\n\nAnd run the following in your terminal/console:\n\n```console\nnpm run start:dev\n```\n\nNPM will automagically reference the binary in `node_modules` for you, and\nexecute the file or command.\n\n### The Result\n\nEither method will start a server instance and begin listening for connections\nfrom `localhost` on port `8080`.\n\nwebpack-dev-server is configured by default to support live-reload of files as\nyou edit your assets while the server is running.\n\nSee [**the documentation**][docs-url] for more use cases and options.\n\n## Browser Support\n\nWhile `webpack-dev-server` transpiles the client (browser) scripts to an ES5\nstate, the project only officially supports the _last two versions of major\nbrowsers_. We simply don't have the resources to support every whacky\nbrowser out there.\n\nIf you find a bug with an obscure / old browser, we would actively welcome a\nPull Request to resolve the bug.\n\n## Support\n\nWe do our best to keep Issues in the repository focused on bugs, features, and\nneeded modifications to the code for the module. Because of that, we ask users\nwith general support, \"how-to\", or \"why isn't this working\" questions to try one\nof the other support channels that are available.\n\nYour first-stop-shop for support for webpack-dev-server should by the excellent\n[documentation][docs-url] for the module. If you see an opportunity for improvement\nof those docs, please head over to the [webpack.js.org repo][wjo-url] and open a\npull request.\n\nFrom there, we encourage users to visit the [webpack Gitter chat][chat-url] and\ntalk to the fine folks there. If your quest for answers comes up dry in chat,\nhead over to [StackOverflow][stack-url] and do a quick search or open a new\nquestion. Remember; It's always much easier to answer questions that include your\n`webpack.config.js` and relevant files!\n\nIf you're twitter-savvy you can tweet [#webpack][hash-url] with your question\nand someone should be able to reach out and lend a hand.\n\nIf you have discovered a :bug:, have a feature suggestion, or would like to see\na modification, please feel free to create an issue on Github. _Note: The issue\ntemplate isn't optional, so please be sure not to remove it, and please fill it\nout completely._\n\n## Contributing\n\nWe welcome your contributions! Please have a read of [CONTRIBUTING.md](CONTRIBUTING.md) for more information on how to get involved.\n\n## Attribution\n\nThis project is heavily inspired by [peerigon/nof5](https://github.com/peerigon/nof5).\n\n## License\n\n#### [MIT](./LICENSE)\n\n[npm]: https://img.shields.io/npm/v/webpack-dev-server.svg\n[npm-url]: https://npmjs.com/package/webpack-dev-server\n[node]: https://img.shields.io/node/v/webpack-dev-server.svg\n[node-url]: https://nodejs.org\n[deps]: https://david-dm.org/webpack/webpack-dev-server.svg\n[deps-url]: https://david-dm.org/webpack/webpack-dev-server\n[tests]: http://img.shields.io/travis/webpack/webpack-dev-server.svg\n[tests-url]: https://travis-ci.org/webpack/webpack-dev-server\n[cover]: https://codecov.io/gh/webpack/webpack-dev-server/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack/webpack-dev-server\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\n[docs-url]: https://webpack.js.org/configuration/dev-server/#devserver\n[hash-url]: https://twitter.com/search?q=webpack\n[middleware-url]: https://github.com/webpack/webpack-dev-middleware\n[stack-url]: https://stackoverflow.com/questions/tagged/webpack-dev-server\n[uglify-url]: https://github.com/webpack-contrib/uglifyjs-webpack-plugin\n[wjo-url]: https://github.com/webpack/webpack.js.org\natob\n===\n\n| **atob**\n| [btoa](https://git.coolaj86.com/coolaj86/btoa.js)\n| [unibabel.js](https://git.coolaj86.com/coolaj86/unibabel.js)\n| Sponsored by [ppl](https://ppl.family)\n\nUses `Buffer` to emulate the exact functionality of the browser's atob.\n\nNote: Unicode may be handled incorrectly (like the browser).\n\nIt turns base64-encoded <strong>a</strong>scii data back **to** <strong>b</strong>inary.\n\n```javascript\n(function () {\n \"use strict\";\n\n var atob = require('atob');\n var b64 = \"SGVsbG8sIFdvcmxkIQ==\";\n var bin = atob(b64);\n\n console.log(bin); // \"Hello, World!\"\n}());\n```\n\n### Need Unicode and Binary Support in the Browser?\n\nCheck out [unibabel.js](https://git.coolaj86.com/coolaj86/unibabel.js)\n\nChangelog\n=======\n\n * v2.1.0 address a few issues and PRs, update URLs\n * v2.0.0 provide browser version for ios web workers\n * v1.2.0 provide (empty) browser version\n * v1.1.3 add MIT license\n * v1.1.2 node only\n\nLICENSE\n=======\n\nCode copyright 2012-2018 AJ ONeal\n\nDual-licensed MIT and Apache-2.0\n\nDocs copyright 2012-2018 AJ ONeal\n\nDocs released under [Creative Commons](https://git.coolaj86.com/coolaj86/atob.js/blob/master/LICENSE.DOCS).\nansi-html [](http://badge.fury.io/js/ansi-html) [](https://travis-ci.org/Tjatse/ansi-html)\n=========\nAn elegant lib that converts the chalked (ANSI) text to HTML.\n\n# Coverage\n- All styles of [chalk](https://github.com/sindresorhus/chalk) (100%) and [colors](https://github.com/Marak/colors.js).\n- There are over **150** randomized test cases under `test`.\n\n# Installation\n```\n$ npm install ansi-html\n```\n\n# Usage\n```javascript\nvar ansiHTML = require('ansi-html');\nvar str = ansiHTML('[ANSI_TEXT]');\n```\n\ne.g.:\n```javascript\nvar chalk = require('chalk');\n\nvar str = chalk.bold.red('foo') + ' bar';\nconsole.log('[ANSI]', str)\nconsole.log('[HTML]', ansiHTML(str));\n```\n\nSee complete examples under `test` / `examples` directory.\n\n# Set Colors\n```javascript\nansiHTML.setColors({\n reset: ['555', '666'], // FOREGROUND-COLOR or [FOREGROUND-COLOR] or [, BACKGROUND-COLOR] or [FOREGROUND-COLOR, BACKGROUND-COLOR]\n black: 'aaa',\t// String\n red: 'bbb',\n green: 'ccc',\n yellow: 'ddd',\n blue: 'eee',\n magenta: 'fff',\n cyan: '999',\n lightgrey: '888',\n darkgrey: '777'\n});\n```\n\n# Reset\n```javascript\nansiHTML.reset();\n```\n\n# Exposed Tags\n```javascript\nvar openTags = ansiHTML.tags.open;\nvar closeTags = ansiHTML.tags.close;\n```\n\n# Test\n```\n$ npm install -l\n$ npm test\n```\n# repeat-element [](https://www.npmjs.com/package/repeat-element) [](https://npmjs.org/package/repeat-element) [](https://npmjs.org/package/repeat-element) [](https://travis-ci.org/jonschlinkert/repeat-element)\n\n> Create an array by repeating the given value n times.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save repeat-element\n```\n\n## Usage\n\n```js\nconst repeat = require('repeat-element');\n\nrepeat('a', 5);\n//=> ['a', 'a', 'a', 'a', 'a']\n\nrepeat('a', 1);\n//=> ['a']\n\nrepeat('a', 0);\n//=> []\n\nrepeat(null, 5)\n//» [ null, null, null, null, null ]\n\nrepeat({some: 'object'}, 5)\n//» [ { some: 'object' },\n// { some: 'object' },\n// { some: 'object' },\n// { some: 'object' },\n// { some: 'object' } ]\n\nrepeat(5, 5)\n//» [ 5, 5, 5, 5, 5 ]\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 17 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 3 | [LinusU](https://github.com/LinusU) |\n| 1 | [architectcodes](https://github.com/architectcodes) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [GitHub Profile](https://github.com/jonschlinkert)\n* [Twitter Profile](https://twitter.com/jonschlinkert)\n* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)\n\n### License\n\nCopyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on August 19, 2018._\n# is-extendable [](https://www.npmjs.com/package/is-extendable) [](https://npmjs.org/package/is-extendable) [](https://npmjs.org/package/is-extendable) [](https://travis-ci.org/jonschlinkert/is-extendable)\n\n> Returns true if a value is a plain object, array or function.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-extendable\n```\n\n## Usage\n\n```js\nvar isExtendable = require('is-extendable');\n```\n\nReturns true if the value is any of the following:\n\n* array\n* plain object\n* function\n\n## Notes\n\nAll objects in JavaScript can have keys, but it's a pain to check for this, since we ether need to verify that the value is not `null` or `undefined` and:\n\n* the value is not a primitive, or\n* that the object is a plain object, function or array\n\nAlso note that an `extendable` object is not the same as an [extensible object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible), which is one that (in es6) is not sealed, frozen, or marked as non-extensible using `preventExtensions`.\n\n## Release history\n\n### v1.0.0 - 2017/07/20\n\n**Breaking changes**\n\n* No longer considers date, regex or error objects to be extendable\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [is-equal-shallow](https://www.npmjs.com/package/is-equal-shallow): Does a shallow comparison of two objects, returning false if the keys or values differ. | [homepage](https://github.com/jonschlinkert/is-equal-shallow \"Does a shallow comparison of two objects, returning false if the keys or values differ.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 20, 2017._\n<div align=\"center\">\n\t<a href=\"https://github.com/webpack/webpack-cli\">\n\t\t<img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n\t</a>\n</div>\n\n<h1 align=\"center\">webpack CLI</h1>\n\n<p align=\"center\">\n The official CLI of webpack\n</p>\n<br>\n\n[](https://www.npmjs.com/package/webpack-cli)\n[](https://travis-ci.org/webpack/webpack-cli)\n[](https://dev.azure.com/webpack/webpack/_build/latest?definitionId=4)\n[![deps][deps]][deps-url]\n[](https://codeclimate.com/github/webpack/webpack-cli)\n[](https://gitter.im/webpack/webpack)\n[](https://packagephobia.now.sh/result?p=webpack-cli)\n[](https://www.npmjs.com/package/webpack-cli)\n[](https://lernajs.io/)\n\n* [About](#about)\n - [How to install](#how-to-install)\n* [Getting Started](#getting-started)\n* [webpack CLI Scaffolds](#webpack-cli-scaffolds)\n* Commands\n - [`webpack-cli init`](./packages/init/README.md#webpack-cli-init)\n - [`webpack-cli add`](./packages/add/README.md#webpack-cli-add)\n - [`webpack-cli info`](./packages/info/README.md#webpack-cli-info)\n - [`webpack-cli migrate`](./packages/migrate/README.md#webpack-cli-migrate)\n - [`webpack-cli remove`](./packages/remove/README.md#webpack-cli-remove)\n - [`webpack-cli generate-plugin`](./packages/generate-plugin/README.md#webpack-cli-generate-plugin)\n - [`webpack-cli generate-loader`](./packages/generate-loader/README.md#webpack-cli-generate-loader)\n - [`webpack-cli serve`](./packages/serve/README.md#webpack-cli-serve)\n - [`webpack-cli update`](./packages/update/README.md#webpack-cli-update)\n* [webpack.config.js](https://webpack.js.org/concepts/configuration/)\n* [Contributing and Internal Documentation](#contributing-and-internal-documentation)\n\n## About\n\nwebpack CLI provides a flexible set of commands for developers to increase speed when setting up a custom webpack project. As of webpack v4, webpack is not expecting a configuration file, but often developers want to create a more custom webpack configuration based on their use-cases and needs. webpack CLI addresses these needs by providing a set of tools to improve the setup of custom webpack configuration.\n\n### How to install\n\nWhen you have followed the [Getting Started](https://webpack.js.org/guides/getting-started/) guide of webpack then webpack CLI is already installed!\n\nOtherwise `npm install --save-dev webpack-cli` or `yarn add webpack-cli --dev` will install it. \n\n### Commands\n\nSupporting developers is an important task for webpack CLI. Thus, webpack CLI provides different commands for many common tasks. We organize webpack CLI as a [multi-package repository](https://github.com/lerna/lerna). Every command has a dedicated subfolder in the `packages` Folder.\n\n## Getting started\n\nWhen you have followed the [Getting Started](https://webpack.js.org/guides/getting-started/) guide of webpack then webpack CLI is already installed! Otherwise, you would need to install webpack CLI and the packages you want to use. If we want to use the `init` functionality to create a new `webpack.config.js` configuration file:\n\n```sh\nnpm i webpack-cli @webpack-cli/init\nnpx webpack-cli init\n```\n\nYou will answer many questions when running the `init` so webpack CLI can provide the best fitting configuration. \n\n## webpack CLI Scaffolds\n\nWith v3 of webpack CLI, we introduced scaffolding as an integral part of the CLI. Our goal is to simplify the creation of webpack configurations for different purposes. Additionally, sharing such solutions with the community is beneficial and with webpack webpack's we want to allow this. We provide `webpack-scaffold` as a utility suite for creating these scaffolds. It contains functions that could be of use for creating an scaffold yourself.\n\nYou can read more about [Scaffolding](./SCAFFOLDING.md) or check out the example project [How do I compose a webpack-scaffold?](https://github.com/evenstensberg/webpack-scaffold-demo).\n\n## Contributing and Internal Documentation\n\nThe webpack family welcomes any contributor, small or big. We are happy to elaborate, guide you through the source code and find issues you might want to work on! To get started have a look at our [documentation on contributing](./.github/CONTRIBUTING.md).\n\n[deps]: https://img.shields.io/david/webpack/webpack.svg\n[deps-url]: https://david-dm.org/webpack/webpack-cli\n# npmlog\n\nThe logger util that npm uses.\n\nThis logger is very basic. It does the logging for npm. It supports\ncustom levels and colored output.\n\nBy default, logs are written to stderr. If you want to send log messages\nto outputs other than streams, then you can change the `log.stream`\nmember, or you can just listen to the events that it emits, and do\nwhatever you want with them.\n\n# Installation\n\n```console\nnpm install npmlog --save\n```\n\n# Basic Usage\n\n```javascript\nvar log = require('npmlog')\n\n// additional stuff ---------------------------+\n// message ----------+ |\n// prefix ----+ | |\n// level -+ | | |\n// v v v v\n log.info('fyi', 'I have a kitty cat: %j', myKittyCat)\n```\n\n## log.level\n\n* {String}\n\nThe level to display logs at. Any logs at or above this level will be\ndisplayed. The special level `silent` will prevent anything from being\ndisplayed ever.\n\n## log.record\n\n* {Array}\n\nAn array of all the log messages that have been entered.\n\n## log.maxRecordSize\n\n* {Number}\n\nThe maximum number of records to keep. If log.record gets bigger than\n10% over this value, then it is sliced down to 90% of this value.\n\nThe reason for the 10% window is so that it doesn't have to resize a\nlarge array on every log entry.\n\n## log.prefixStyle\n\n* {Object}\n\nA style object that specifies how prefixes are styled. (See below)\n\n## log.headingStyle\n\n* {Object}\n\nA style object that specifies how the heading is styled. (See below)\n\n## log.heading\n\n* {String} Default: \"\"\n\nIf set, a heading that is printed at the start of every line.\n\n## log.stream\n\n* {Stream} Default: `process.stderr`\n\nThe stream where output is written.\n\n## log.enableColor()\n\nForce colors to be used on all messages, regardless of the output\nstream.\n\n## log.disableColor()\n\nDisable colors on all messages.\n\n## log.enableProgress()\n\nEnable the display of log activity spinner and progress bar\n\n## log.disableProgress()\n\nDisable the display of a progress bar\n\n## log.enableUnicode()\n\nForce the unicode theme to be used for the progress bar.\n\n## log.disableUnicode()\n\nDisable the use of unicode in the progress bar.\n\n## log.setGaugeTemplate(template)\n\nSet a template for outputting the progress bar. See the [gauge documentation] for details.\n\n[gauge documentation]: https://npmjs.com/package/gauge\n\n## log.setGaugeThemeset(themes)\n\nSelect a themeset to pick themes from for the progress bar. See the [gauge documentation] for details.\n\n## log.pause()\n\nStop emitting messages to the stream, but do not drop them.\n\n## log.resume()\n\nEmit all buffered messages that were written while paused.\n\n## log.log(level, prefix, message, ...)\n\n* `level` {String} The level to emit the message at\n* `prefix` {String} A string prefix. Set to \"\" to skip.\n* `message...` Arguments to `util.format`\n\nEmit a log message at the specified level.\n\n## log\\[level](prefix, message, ...)\n\nFor example,\n\n* log.silly(prefix, message, ...)\n* log.verbose(prefix, message, ...)\n* log.info(prefix, message, ...)\n* log.http(prefix, message, ...)\n* log.warn(prefix, message, ...)\n* log.error(prefix, message, ...)\n\nLike `log.log(level, prefix, message, ...)`. In this way, each level is\ngiven a shorthand, so you can do `log.info(prefix, message)`.\n\n## log.addLevel(level, n, style, disp)\n\n* `level` {String} Level indicator\n* `n` {Number} The numeric level\n* `style` {Object} Object with fg, bg, inverse, etc.\n* `disp` {String} Optional replacement for `level` in the output.\n\nSets up a new level with a shorthand function and so forth.\n\nNote that if the number is `Infinity`, then setting the level to that\nwill cause all log messages to be suppressed. If the number is\n`-Infinity`, then the only way to show it is to enable all log messages.\n\n## log.newItem(name, todo, weight)\n\n* `name` {String} Optional; progress item name.\n* `todo` {Number} Optional; total amount of work to be done. Default 0.\n* `weight` {Number} Optional; the weight of this item relative to others. Default 1.\n\nThis adds a new `are-we-there-yet` item tracker to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `Tracker` object.\n\n## log.newStream(name, todo, weight)\n\nThis adds a new `are-we-there-yet` stream tracker to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `TrackerStream` object.\n\n## log.newGroup(name, weight)\n\nThis adds a new `are-we-there-yet` tracker group to the progress tracker. The\nobject returned has the `log[level]` methods but is otherwise an\n`are-we-there-yet` `TrackerGroup` object.\n\n# Events\n\nEvents are all emitted with the message object.\n\n* `log` Emitted for all messages\n* `log.<level>` Emitted for all messages with the `<level>` level.\n* `<prefix>` Messages with prefixes also emit their prefix as an event.\n\n# Style Objects\n\nStyle objects can have the following fields:\n\n* `fg` {String} Color for the foreground text\n* `bg` {String} Color for the background\n* `bold`, `inverse`, `underline` {Boolean} Set the associated property\n* `bell` {Boolean} Make a noise (This is pretty annoying, probably.)\n\n# Message Objects\n\nEvery log event is emitted with a message object, and the `log.record`\nlist contains all of them that have been created. They have the\nfollowing fields:\n\n* `id` {Number}\n* `level` {String}\n* `prefix` {String}\n* `message` {String} Result of `util.format()`\n* `messageRaw` {Array} Arguments to `util.format()`\n\n# Blocking TTYs\n\nWe use [`set-blocking`](https://npmjs.com/package/set-blocking) to set\nstderr and stdout blocking if they are tty's and have the setBlocking call.\nThis is a work around for an issue in early versions of Node.js 6.x, which\nmade stderr and stdout non-blocking on OSX. (They are always blocking\nWindows and were never blocking on Linux.) `npmlog` needs them to be blocking\nso that it can allow output to stdout and stderr to be interlaced.\n# is-glob [](https://www.npmjs.com/package/is-glob) [](https://npmjs.org/package/is-glob) [](https://travis-ci.org/jonschlinkert/is-glob)\n\n> Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-glob\n```\n\nYou might also be interested in [is-valid-glob](https://github.com/jonschlinkert/is-valid-glob) and [has-glob](https://github.com/jonschlinkert/has-glob).\n\n## Usage\n\n```js\nvar isGlob = require('is-glob');\n```\n\n**True**\n\nPatterns that have glob characters or regex patterns will return `true`:\n\n```js\nisGlob('!foo.js');\nisGlob('*.js');\nisGlob('**/abc.js');\nisGlob('abc/*.js');\nisGlob('abc/(aaa|bbb).js');\nisGlob('abc/[a-z].js');\nisGlob('abc/{a,b}.js');\nisGlob('abc/?.js');\n//=> true\n```\n\nExtglobs\n\n```js\nisGlob('abc/@(a).js');\nisGlob('abc/!(a).js');\nisGlob('abc/+(a).js');\nisGlob('abc/*(a).js');\nisGlob('abc/?(a).js');\n//=> true\n```\n\n**False**\n\nEscaped globs or extglobs return `false`:\n\n```js\nisGlob('abc/\\\\@(a).js');\nisGlob('abc/\\\\!(a).js');\nisGlob('abc/\\\\+(a).js');\nisGlob('abc/\\\\*(a).js');\nisGlob('abc/\\\\?(a).js');\nisGlob('\\\\!foo.js');\nisGlob('\\\\*.js');\nisGlob('\\\\*\\\\*/abc.js');\nisGlob('abc/\\\\*.js');\nisGlob('abc/\\\\(aaa|bbb).js');\nisGlob('abc/\\\\[a-z].js');\nisGlob('abc/\\\\{a,b}.js');\nisGlob('abc/\\\\?.js');\n//=> false\n```\n\nPatterns that do not have glob patterns return `false`:\n\n```js\nisGlob('abc.js');\nisGlob('abc/def/ghi.js');\nisGlob('foo.js');\nisGlob('abc/@.js');\nisGlob('abc/+.js');\nisGlob();\nisGlob(null);\n//=> false\n```\n\nArrays are also `false` (If you want to check if an array has a glob pattern, use [has-glob](https://github.com/jonschlinkert/has-glob)):\n\n```js\nisGlob(['**/*.js']);\nisGlob(['foo.js']);\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [assemble](https://www.npmjs.com/package/assemble): Get the rocks out of your socks! Assemble makes you fast at creating web projects… [more](https://github.com/assemble/assemble) | [homepage](https://github.com/assemble/assemble \"Get the rocks out of your socks! Assemble makes you fast at creating web projects. Assemble is used by thousands of projects for rapid prototyping, creating themes, scaffolds, boilerplates, e-books, UI components, API documentation, blogs, building websit\")\n* [base](https://www.npmjs.com/package/base): base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/node-base/base) | [homepage](https://github.com/node-base/base \"base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.\")\n* [update](https://www.npmjs.com/package/update): Be scalable! Update is a new, open source developer framework and CLI for automating updates… [more](https://github.com/update/update) | [homepage](https://github.com/update/update \"Be scalable! Update is a new, open source developer framework and CLI for automating updates of any kind in code projects.\")\n* [verb](https://www.npmjs.com/package/verb): Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used… [more](https://github.com/verbose/verb) | [homepage](https://github.com/verbose/verb \"Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used on hundreds of projects of all sizes to generate everything from API docs to readmes.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor**<br/> | \n| --- | --- |\n| 40 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [tuvistavie](https://github.com/tuvistavie) |\n\n### Building docs\n\n_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_\n\nTo generate the readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install -g verb verb-generate-readme && verb\n```\n\n### Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/is-glob/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._\n# EE First\n\n[![NPM version][npm-image]][npm-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n[![Gittip][gittip-image]][gittip-url]\n\nGet the first event in a set of event emitters and event pairs,\nthen clean up after itself.\n\n## Install\n\n```sh\n$ npm install ee-first\n```\n\n## API\n\n```js\nvar first = require('ee-first')\n```\n\n### first(arr, listener)\n\nInvoke `listener` on the first event from the list specified in `arr`. `arr` is\nan array of arrays, with each array in the format `[ee, ...event]`. `listener`\nwill be called only once, the first time any of the given events are emitted. If\n`error` is one of the listened events, then if that fires first, the `listener`\nwill be given the `err` argument.\n\nThe `listener` is invoked as `listener(err, ee, event, args)`, where `err` is the\nfirst argument emitted from an `error` event, if applicable; `ee` is the event\nemitter that fired; `event` is the string event name that fired; and `args` is an\narray of the arguments that were emitted on the event.\n\n```js\nvar ee1 = new EventEmitter()\nvar ee2 = new EventEmitter()\n\nfirst([\n [ee1, 'close', 'end', 'error'],\n [ee2, 'error']\n], function (err, ee, event, args) {\n // listener invoked\n})\n```\n\n#### .cancel()\n\nThe group of listeners can be cancelled before being invoked and have all the event\nlisteners removed from the underlying event emitters.\n\n```js\nvar thunk = first([\n [ee1, 'close', 'end', 'error'],\n [ee2, 'error']\n], function (err, ee, event, args) {\n // listener invoked\n})\n\n// cancel and clean up\nthunk.cancel()\n```\n\n[npm-image]: https://img.shields.io/npm/v/ee-first.svg?style=flat-square\n[npm-url]: https://npmjs.org/package/ee-first\n[github-tag]: http://img.shields.io/github/tag/jonathanong/ee-first.svg?style=flat-square\n[github-url]: https://github.com/jonathanong/ee-first/tags\n[travis-image]: https://img.shields.io/travis/jonathanong/ee-first.svg?style=flat-square\n[travis-url]: https://travis-ci.org/jonathanong/ee-first\n[coveralls-image]: https://img.shields.io/coveralls/jonathanong/ee-first.svg?style=flat-square\n[coveralls-url]: https://coveralls.io/r/jonathanong/ee-first?branch=master\n[license-image]: http://img.shields.io/npm/l/ee-first.svg?style=flat-square\n[license-url]: LICENSE.md\n[downloads-image]: http://img.shields.io/npm/dm/ee-first.svg?style=flat-square\n[downloads-url]: https://npmjs.org/package/ee-first\n[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square\n[gittip-url]: https://www.gittip.com/jonathanong/\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\n## Install\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Usage\n\n> es5, browser and es6 ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Boolean(true));\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf(new Number(42));\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(new String('str'));\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([]);\n//=> 'array'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(new Array());\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'function'\n\nkindOf(new Function());\n//=> 'function'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\nNote that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.\n\n```bash\n#1: array\n current x 23,329,397 ops/sec ±0.82% (94 runs sampled)\n lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)\n lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)\n\n#2: boolean\n current x 27,197,115 ops/sec ±0.85% (94 runs sampled)\n lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)\n lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)\n\n#3: date\n current x 20,190,117 ops/sec ±0.86% (92 runs sampled)\n lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)\n lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)\n\n#4: function\n current x 23,855,460 ops/sec ±0.60% (97 runs sampled)\n lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)\n lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)\n\n#5: null\n current x 27,061,047 ops/sec ±0.97% (96 runs sampled)\n lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)\n lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)\n\n#6: number\n current x 25,075,682 ops/sec ±0.53% (99 runs sampled)\n lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)\n lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)\n\n#7: object\n current x 3,348,980 ops/sec ±0.49% (99 runs sampled)\n lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)\n lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)\n\n#8: regex\n current x 21,284,827 ops/sec ±0.72% (96 runs sampled)\n lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)\n lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)\n\n#9: string\n current x 25,379,234 ops/sec ±0.58% (96 runs sampled)\n lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)\n lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)\n\n#10: undef\n current x 27,459,221 ops/sec ±1.01% (93 runs sampled)\n lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)\n lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n\n## About\n\n### Related projects\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 59 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._\nLike `chown -R`.\n\nTakes the same arguments as `fs.chown()`\niMurmurHash.js\n==============\n\nAn incremental implementation of the MurmurHash3 (32-bit) hashing algorithm for JavaScript based on [Gary Court's implementation](https://github.com/garycourt/murmurhash-js) with [kazuyukitanimura's modifications](https://github.com/kazuyukitanimura/murmurhash-js).\n\nThis version works significantly faster than the non-incremental version if you need to hash many small strings into a single hash, since string concatenation (to build the single string to pass the non-incremental version) is fairly costly. In one case tested, using the incremental version was about 50% faster than concatenating 5-10 strings and then hashing.\n\nInstallation\n------------\n\nTo use iMurmurHash in the browser, [download the latest version](https://raw.github.com/jensyt/imurmurhash-js/master/imurmurhash.min.js) and include it as a script on your site.\n\n```html\n<script type=\"text/javascript\" src=\"/scripts/imurmurhash.min.js\"></script>\n<script>\n// Your code here, access iMurmurHash using the global object MurmurHash3\n</script>\n```\n\n---\n\nTo use iMurmurHash in Node.js, install the module using NPM:\n\n```bash\nnpm install imurmurhash\n```\n\nThen simply include it in your scripts:\n\n```javascript\nMurmurHash3 = require('imurmurhash');\n```\n\nQuick Example\n-------------\n\n```javascript\n// Create the initial hash\nvar hashState = MurmurHash3('string');\n\n// Incrementally add text\nhashState.hash('more strings');\nhashState.hash('even more strings');\n\n// All calls can be chained if desired\nhashState.hash('and').hash('some').hash('more');\n\n// Get a result\nhashState.result();\n// returns 0xe4ccfe6b\n```\n\nFunctions\n---------\n\n### MurmurHash3 ([string], [seed])\nGet a hash state object, optionally initialized with the given _string_ and _seed_. _Seed_ must be a positive integer if provided. Calling this function without the `new` keyword will return a cached state object that has been reset. This is safe to use as long as the object is only used from a single thread and no other hashes are created while operating on this one. If this constraint cannot be met, you can use `new` to create a new state object. For example:\n\n```javascript\n// Use the cached object, calling the function again will return the same\n// object (but reset, so the current state would be lost)\nhashState = MurmurHash3();\n...\n\n// Create a new object that can be safely used however you wish. Calling the\n// function again will simply return a new state object, and no state loss\n// will occur, at the cost of creating more objects.\nhashState = new MurmurHash3();\n```\n\nBoth methods can be mixed however you like if you have different use cases.\n\n---\n\n### MurmurHash3.prototype.hash (string)\nIncrementally add _string_ to the hash. This can be called as many times as you want for the hash state object, including after a call to `result()`. Returns `this` so calls can be chained.\n\n---\n\n### MurmurHash3.prototype.result ()\nGet the result of the hash as a 32-bit positive integer. This performs the tail and finalizer portions of the algorithm, but does not store the result in the state object. This means that it is perfectly safe to get results and then continue adding strings via `hash`.\n\n```javascript\n// Do the whole string at once\nMurmurHash3('this is a test string').result();\n// 0x70529328\n\n// Do part of the string, get a result, then the other part\nvar m = MurmurHash3('this is a');\nm.result();\n// 0xbfc4f834\nm.hash(' test string').result();\n// 0x70529328 (same as above)\n```\n\n---\n\n### MurmurHash3.prototype.reset ([seed])\nReset the state object for reuse, optionally using the given _seed_ (defaults to 0 like the constructor). Returns `this` so calls can be chained.\n\n---\n\nLicense (MIT)\n-------------\nCopyright (c) 2013 Gary Court, Jens Taylor\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\nthe Software, and to permit persons to whom the Software is furnished to do so,\nsubject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\nFOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\nCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\nIN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\nCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n#object.getownpropertydescriptors <sup>[![Version Badge][npm-version-svg]][package-url]</sup>\n\n[![Build Status][travis-svg]][travis-url]\n[![dependency status][deps-svg]][deps-url]\n[![dev dependency status][dev-deps-svg]][dev-deps-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\n[![npm badge][npm-badge-png]][package-url]\n\n[![browser support][testling-svg]][testling-url]\n\nAn ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.\nInvoke its \"shim\" method to shim `Object.getOwnPropertyDescriptors` if it is unavailable, and if `Object.getOwnPropertyDescriptor` is available.\n\nThis package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the [spec](https://github.com/tc39/ecma262/pull/582).\n\n## Example\n\n```js\nvar getDescriptors = require('object.getownpropertydescriptors');\nvar assert = require('assert');\nvar obj = { normal: Infinity };\nvar enumDescriptor = {\n\tenumerable: false,\n\twritable: false,\n\tconfigurable: true,\n\tvalue: true\n};\nvar writableDescriptor = {\n\tenumerable: true,\n\twritable: true,\n\tconfigurable: true,\n\tvalue: 42\n};\nvar symbol = Symbol();\nvar symDescriptor = {\n\tenumerable: true,\n\twritable: true,\n\tconfigurable: false,\n\tvalue: [symbol]\n};\n\nObject.defineProperty(obj, 'enumerable', enumDescriptor);\nObject.defineProperty(obj, 'writable', writableDescriptor);\nObject.defineProperty(obj, 'symbol', symDescriptor);\n\nvar descriptors = getDescriptors(obj);\n\nassert.deepEqual(descriptors, {\n\tnormal: {\n\t\tenumerable: true,\n\t\twritable: true,\n\t\tconfigurable: true,\n\t\tvalue: Infinity\n\t},\n\tenumerable: enumDescriptor,\n\twritable: writableDescriptor,\n\tsymbol: symDescriptor\n});\n```\n\n```js\nvar getDescriptors = require('object.getownpropertydescriptors');\nvar assert = require('assert');\n/* when Object.getOwnPropertyDescriptors is not present */\ndelete Object.getOwnPropertyDescriptors;\nvar shimmedDescriptors = getDescriptors.shim();\nassert.equal(shimmedDescriptors, getDescriptors);\nassert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj));\n```\n\n```js\nvar getDescriptors = require('object.getownpropertydescriptors');\nvar assert = require('assert');\n/* when Object.getOwnPropertyDescriptors is present */\nvar shimmedDescriptors = getDescriptors.shim();\nassert.notEqual(shimmedDescriptors, getDescriptors);\nassert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj));\n```\n\n## Tests\nSimply clone the repo, `npm install`, and run `npm test`\n\n[package-url]: https://npmjs.org/package/object.getownpropertydescriptors\n[npm-version-svg]: http://versionbadg.es/ljharb/object.getownpropertydescriptors.svg\n[travis-svg]: https://travis-ci.org/ljharb/object.getownpropertydescriptors.svg\n[travis-url]: https://travis-ci.org/ljharb/object.getownpropertydescriptors\n[deps-svg]: https://david-dm.org/ljharb/object.getownpropertydescriptors.svg\n[deps-url]: https://david-dm.org/ljharb/object.getownpropertydescriptors\n[dev-deps-svg]: https://david-dm.org/ljharb/object.getownpropertydescriptors/dev-status.svg\n[dev-deps-url]: https://david-dm.org/ljharb/object.getownpropertydescriptors#info=devDependencies\n[testling-svg]: https://ci.testling.com/ljharb/object.getownpropertydescriptors.png\n[testling-url]: https://ci.testling.com/ljharb/object.getownpropertydescriptors\n[npm-badge-png]: https://nodei.co/npm/object.getownpropertydescriptors.png?downloads=true&stars=true\n[license-image]: http://img.shields.io/npm/l/object.getownpropertydescriptors.svg\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/object.getownpropertydescriptors.svg\n[downloads-url]: http://npm-stat.com/charts.html?package=object.getownpropertydescriptors\n# is-data-descriptor [](https://www.npmjs.com/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://travis-ci.org/jonschlinkert/is-data-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript data descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-data-descriptor\n```\n\n## Usage\n\n```js\nvar isDataDesc = require('is-data-descriptor');\n```\n\n## Examples\n\n`true` when the descriptor has valid properties with valid values.\n\n```js\n// `value` can be anything\nisDataDesc({value: 'foo'})\nisDataDesc({value: function() {}})\nisDataDesc({value: true})\n//=> true\n```\n\n`false` when not an object\n\n```js\nisDataDesc('a')\n//=> false\nisDataDesc(null)\n//=> false\nisDataDesc([])\n//=> false\n```\n\n`false` when the object has invalid properties\n\n```js\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', get: function(){}})\n//=> false\nisDataDesc({get: function(){}, value: 'foo'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDataDesc({value: 'foo', enumerable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', configurable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', writable: 'foo'})\n//=> false\n```\n\n## Valid properties\n\nThe only valid data descriptor properties are the following:\n\n* `configurable` (required)\n* `enumerable` (required)\n* `value` (optional)\n* `writable` (optional)\n\nTo be a valid data descriptor, either `value` or `writable` must be defined.\n\n**Invalid properties**\n\nA descriptor may have additional _invalid_ properties (an error will **not** be thrown).\n\n```js\nvar foo = {};\n\nObject.defineProperty(foo, 'bar', {\n enumerable: true,\n whatever: 'blah', // invalid, but doesn't cause an error\n get: function() {\n return 'baz';\n }\n});\n\nconsole.log(foo.bar);\n//=> 'baz'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 21 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# `react-is`\n\nThis package allows you to test arbitrary values and see if they're a particular React element type.\n\n## Installation\n\n```sh\n# Yarn\nyarn add react-is\n\n# NPM\nnpm install react-is\n```\n\n## Usage\n\n### Determining if a Component is Valid\n\n```js\nimport React from \"react\";\nimport * as ReactIs from \"react-is\";\n\nclass ClassComponent extends React.Component {\n render() {\n return React.createElement(\"div\");\n }\n}\n\nconst StatelessComponent = () => React.createElement(\"div\");\n\nconst ForwardRefComponent = React.forwardRef((props, ref) =>\n React.createElement(Component, { forwardedRef: ref, ...props })\n);\n\nconst Context = React.createContext(false);\n\nReactIs.isValidElementType(\"div\"); // true\nReactIs.isValidElementType(ClassComponent); // true\nReactIs.isValidElementType(StatelessComponent); // true\nReactIs.isValidElementType(ForwardRefComponent); // true\nReactIs.isValidElementType(Context.Provider); // true\nReactIs.isValidElementType(Context.Consumer); // true\nReactIs.isValidElementType(React.createFactory(\"div\")); // true\n```\n\n### Determining an Element's Type\n\n#### ConcurrentMode\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isConcurrentMode(<React.unstable_ConcurrentMode />); // true\nReactIs.typeOf(<React.unstable_ConcurrentMode />) === ReactIs.ConcurrentMode; // true\n```\n\n#### Context\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nconst ThemeContext = React.createContext(\"blue\");\n\nReactIs.isContextConsumer(<ThemeContext.Consumer />); // true\nReactIs.isContextProvider(<ThemeContext.Provider />); // true\nReactIs.typeOf(<ThemeContext.Provider />) === ReactIs.ContextProvider; // true\nReactIs.typeOf(<ThemeContext.Consumer />) === ReactIs.ContextConsumer; // true\n```\n\n#### Element\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isElement(<div />); // true\nReactIs.typeOf(<div />) === ReactIs.Element; // true\n```\n\n#### Fragment\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isFragment(<></>); // true\nReactIs.typeOf(<></>) === ReactIs.Fragment; // true\n```\n\n#### Portal\n\n```js\nimport React from \"react\";\nimport ReactDOM from \"react-dom\";\nimport * as ReactIs from 'react-is';\n\nconst div = document.createElement(\"div\");\nconst portal = ReactDOM.createPortal(<div />, div);\n\nReactIs.isPortal(portal); // true\nReactIs.typeOf(portal) === ReactIs.Portal; // true\n```\n\n#### StrictMode\n\n```js\nimport React from \"react\";\nimport * as ReactIs from 'react-is';\n\nReactIs.isStrictMode(<React.StrictMode />); // true\nReactIs.typeOf(<React.StrictMode />) === ReactIs.StrictMode; // true\n```\nkillable\n========\n\nKeeps track of a server's open sockets so they can be destroyed at a\nmoment's notice. This way, the server connection can be killed very\nfast.\n\nInstallation\n------------\n\n```\nnpm install killable\n```\n\nExample usage\n-------------\n\nUsing express:\n('server' in the example is just an ``http.server``, so other frameworks\nor pure Node should work just as well.)\n\n```javascript\nvar killable = require('killable');\n\nvar app = require('express')();\nvar server;\n\napp.route('/', function (req, res, next) {\n res.send('Server is going down NOW!');\n\n server.kill(function () {\n //the server is down when this is called. That won't take long.\n });\n});\n\nvar server = app.listen(8080);\nkillable(server);\n```\n\nAPI\n---\n\nThe ``killable`` module is callable. When you call it on a Node\n``http.Server`` object, it will add a ``server.kill()`` method on it. It\nreturns the server object.\n\n``server.kill([callback])`` closes all open sockets and calls\n``server.close()``, to which the ``callback`` is passed on.\n\nInspired by: http://stackoverflow.com/a/14636625\n\nLicense\n-------\n\nISC\n# isarray\n\n`Array#isArray` for older browsers.\n\n[](http://travis-ci.org/juliangruber/isarray)\n[](https://www.npmjs.org/package/isarray)\n\n[\n](https://ci.testling.com/juliangruber/isarray)\n\n## Usage\n\n```js\nvar isArray = require('isarray');\n\nconsole.log(isArray([])); // => true\nconsole.log(isArray({})); // => false\n```\n\n## Installation\n\nWith [npm](http://npmjs.org) do\n\n```bash\n$ npm install isarray\n```\n\nThen bundle for the browser with\n[browserify](https://github.com/substack/browserify).\n\nWith [component](http://component.io) do\n\n```bash\n$ component install juliangruber/isarray\n```\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\nare-we-there-yet\n----------------\n\nTrack complex hiearchies of asynchronous task completion statuses. This is\nintended to give you a way of recording and reporting the progress of the big\nrecursive fan-out and gather type workflows that are so common in async.\n\nWhat you do with this completion data is up to you, but the most common use case is to\nfeed it to one of the many progress bar modules.\n\nMost progress bar modules include a rudamentary version of this, but my\nneeds were more complex.\n\nUsage\n=====\n\n```javascript\nvar TrackerGroup = require(\"are-we-there-yet\").TrackerGroup\n\nvar top = new TrackerGroup(\"program\")\n\nvar single = top.newItem(\"one thing\", 100)\nsingle.completeWork(20)\n\nconsole.log(top.completed()) // 0.2\n\nfs.stat(\"file\", function(er, stat) {\n if (er) throw er \n var stream = top.newStream(\"file\", stat.size)\n console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete\n // and 50% * 20% == 10%\n fs.createReadStream(\"file\").pipe(stream).on(\"data\", function (chunk) {\n // do stuff with chunk\n })\n top.on(\"change\", function (name) {\n // called each time a chunk is read from \"file\"\n // top.completed() will start at 0.1 and fill up to 0.6 as the file is read\n })\n})\n```\n\nShared Methods\n==============\n\n* var completed = tracker.completed()\n\nImplemented in: `Tracker`, `TrackerGroup`, `TrackerStream`\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1.\n\n* tracker.finish()\n\nImplemented in: `Tracker`, `TrackerGroup`\n\nMarks the tracker as completed. With a TrackerGroup this marks all of its\ncomponents as completed.\n\nMarks all of the components of this tracker as finished, which in turn means\nthat `tracker.completed()` for this will now be 1.\n\nThis will result in one or more `change` events being emitted.\n\nEvents\n======\n\nAll tracker objects emit `change` events with the following arguments:\n\n```\nfunction (name, completed, tracker)\n```\n\n`name` is the name of the tracker that originally emitted the event,\nor if it didn't have one, the first containing tracker group that had one.\n\n`completed` is the percent complete (as returned by `tracker.completed()` method).\n\n`tracker` is the tracker object that you are listening for events on.\n\nTrackerGroup\n============\n\n* var tracker = new TrackerGroup(**name**)\n\n * **name** *(optional)* - The name of this tracker group, used in change\n notifications if the component updating didn't have a name. Defaults to undefined.\n\nCreates a new empty tracker aggregation group. These are trackers whose\ncompletion status is determined by the completion status of other trackers.\n\n* tracker.addUnit(**otherTracker**, **weight**)\n\n * **otherTracker** - Any of the other are-we-there-yet tracker objects\n * **weight** *(optional)* - The weight to give the tracker, defaults to 1.\n\nAdds the **otherTracker** to this aggregation group. The weight determines\nhow long you expect this tracker to take to complete in proportion to other\nunits. So for instance, if you add one tracker with a weight of 1 and\nanother with a weight of 2, you're saying the second will take twice as long\nto complete as the first. As such, the first will account for 33% of the\ncompletion of this tracker and the second will account for the other 67%.\n\nReturns **otherTracker**.\n\n* var subGroup = tracker.newGroup(**name**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subGroup = tracker.addUnit(new TrackerGroup(name), weight)\n```\n\n* var subItem = tracker.newItem(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subItem = tracker.addUnit(new Tracker(name, todo), weight)\n```\n\n* var subStream = tracker.newStream(**name**, **todo**, **weight**)\n\nThe above is exactly equivalent to:\n\n```javascript\n var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)\n```\n\n* console.log( tracker.debug() )\n\nReturns a tree showing the completion of this tracker group and all of its\nchildren, including recursively entering all of the children.\n\nTracker\n=======\n\n* var tracker = new Tracker(**name**, **todo**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.\n\nOrdinarily these are constructed as a part of a tracker group (via\n`newItem`).\n\n* var completed = tracker.completed()\n\nReturns the ratio of completed work to work to be done. Range of 0 to 1. If\ntotal work to be done is 0 then it will return 0.\n\n* tracker.addWork(**todo**)\n\n * **todo** A number to add to the amount of work to be done.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\n\n* tracker.completeWork(**completed**)\n\n * **completed** A number to add to the work complete\n\nIncrease the amount of work complete, thus increasing the completion percentage.\nWill never increase the work completed past the amount of work todo. That is,\npercentages > 100% are not allowed. Triggers a `change` event.\n\n* tracker.finish()\n\nMarks this tracker as finished, tracker.completed() will now be 1. Triggers\na `change` event.\n\nTrackerStream\n=============\n\n* var tracker = new TrackerStream(**name**, **size**, **options**)\n\n * **name** *(optional)* The name of this counter to report in change\n events. Defaults to undefined.\n * **size** *(optional)* The number of bytes being sent through this stream.\n * **options** *(optional)* A hash of stream options\n\nThe tracker stream object is a pass through stream that updates an internal\ntracker object each time a block passes through. It's intended to track\ndownloads, file extraction and other related activities. You use it by piping\nyour data source into it and then using it as your data source.\n\nIf your data has a length attribute then that's used as the amount of work\ncompleted when the chunk is passed through. If it does not (eg, object\nstreams) then each chunk counts as completing 1 unit of work, so your size\nshould be the total number of objects being streamed.\n\n* tracker.addWork(**todo**)\n\n * **todo** Increase the expected overall size by **todo** bytes.\n\nIncreases the amount of work to be done, thus decreasing the completion\npercentage. Triggers a `change` event.\ntunnel-agent\n============\n\nHTTP proxy tunneling agent. Formerly part of mikeal/request, now a standalone module.\n# global-modules [](https://www.npmjs.com/package/global-modules) [](https://npmjs.org/package/global-modules) [](https://npmjs.org/package/global-modules) [](https://travis-ci.org/jonschlinkert/global-modules)\n\n> The directory used by npm for globally installed npm modules.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save global-modules\n```\n\n## Usage\n\n```js\nvar globalModules = require('global-modules');\nconsole.log(globalModules);\n//=> '/usr/local/lib/node_modules' \n```\n_(Note that this path might be different based on OS or user defined configuration settings)_\n\n## About\n\n### Related projects\n\n* [git-config-path](https://www.npmjs.com/package/git-config-path): Resolve the path to the user's local or global .gitconfig. | [homepage](https://github.com/jonschlinkert/git-config-path \"Resolve the path to the user's local or global .gitconfig.\")\n* [global-prefix](https://www.npmjs.com/package/global-prefix): Get the npm global path prefix. | [homepage](https://github.com/jonschlinkert/global-prefix \"Get the npm global path prefix.\")\n* [homedir-polyfill](https://www.npmjs.com/package/homedir-polyfill): Node.js os.homedir polyfill for older versions of node.js. | [homepage](https://github.com/doowb/homedir-polyfill \"Node.js os.homedir polyfill for older versions of node.js.\")\n* [npm-paths](https://www.npmjs.com/package/npm-paths): Returns an array of unique \"npm\" directories based on the user's platform and environment. | [homepage](https://github.com/jonschlinkert/npm-paths \"Returns an array of unique \"npm\" directories based on the user's platform and environment.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 14 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [jason-chang](https://github.com/jason-chang) |\n| 1 | [Kikobeats](https://github.com/Kikobeats) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 28, 2017._\n# spdy-transport\n\n[](http://travis-ci.org/spdy-http2/spdy-transport)\n[](http://badge.fury.io/js/spdy-transport)\n[](https://david-dm.org/spdy-http2/spdy-transport)\n[](http://standardjs.com/)\n[](https://waffle.io/spdy-http2/node-spdy)\n\n> SPDY/HTTP2 generic transport implementation.\n\n## Usage\n\n```javascript\nvar transport = require('spdy-transport');\n\n// NOTE: socket is some stream or net.Socket instance, may be an argument\n// of `net.createServer`'s connection handler.\n\nvar server = transport.connection.create(socket, {\n protocol: 'http2',\n isServer: true\n});\n\nserver.on('stream', function(stream) {\n console.log(stream.method, stream.path, stream.headers);\n stream.respond(200, {\n header: 'value'\n });\n\n stream.on('readable', function() {\n var chunk = stream.read();\n if (!chunk)\n return;\n\n console.log(chunk);\n });\n\n stream.on('end', function() {\n console.log('end');\n });\n\n // And other node.js Stream APIs\n // ...\n});\n```\n\n## LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2015.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: http://json.org/\n[1]: http://github.com/indutny/bud-backend\n[2]: https://github.com/nodejs/io.js\n[3]: https://github.com/libuv/libuv\n[4]: http://openssl.org/\noauth-sign\n==========\n\nOAuth 1 signing. Formerly a vendor lib in mikeal/request, now a standalone module. \n\n## Supported Method Signatures\n\n- HMAC-SHA1\n- HMAC-SHA256\n- RSA-SHA1\n- PLAINTEXT\n# Forge\n\n[](https://nodei.co/npm/node-forge/)\n\n[](https://travis-ci.org/digitalbazaar/forge)\n\nA native implementation of [TLS][] (and various other cryptographic tools) in\n[JavaScript][].\n\nIntroduction\n------------\n\nThe Forge software is a fully native implementation of the [TLS][] protocol\nin JavaScript, a set of cryptography utilities, and a set of tools for\ndeveloping Web Apps that utilize many network resources.\n\nPerformance\n------------\n\nForge is fast. Benchmarks against other popular JavaScript cryptography\nlibraries can be found here:\n\n* http://dominictarr.github.io/crypto-bench/\n* http://cryptojs.altervista.org/test/simulate-threading-speed_test.html\n\nDocumentation\n-------------\n\n* [Introduction](#introduction)\n* [Performance](#performance)\n* [Installation](#installation)\n* [Testing](#testing)\n* [Contributing](#contributing)\n\n### API\n\n* [Options](#options)\n\n### Transports\n\n* [TLS](#tls)\n* [HTTP](#http)\n* [SSH](#ssh)\n* [XHR](#xhr)\n* [Sockets](#socket)\n\n### Ciphers\n\n* [CIPHER](#cipher)\n* [AES](#aes)\n* [DES](#des)\n* [RC2](#rc2)\n\n### PKI\n\n* [ED25519](#ed25519)\n* [RSA](#rsa)\n* [RSA-KEM](#rsakem)\n* [X.509](#x509)\n* [PKCS#5](#pkcs5)\n* [PKCS#7](#pkcs7)\n* [PKCS#8](#pkcs8)\n* [PKCS#10](#pkcs10)\n* [PKCS#12](#pkcs12)\n* [ASN.1](#asn)\n\n### Message Digests\n\n* [SHA1](#sha1)\n* [SHA256](#sha256)\n* [SHA384](#sha384)\n* [SHA512](#sha512)\n* [MD5](#md5)\n* [HMAC](#hmac)\n\n### Utilities\n\n* [Prime](#prime)\n* [PRNG](#prng)\n* [Tasks](#task)\n* [Utilities](#util)\n* [Logging](#log)\n* [Debugging](#debug)\n* [Flash Networking Support](#flash)\n\n### Other\n\n* [Security Considerations](#security-considerations)\n* [Library Background](#library-background)\n* [Contact](#contact)\n* [Donations](#donations)\n\n---------------------------------------\n\nInstallation\n------------\n\n**Note**: Please see the [Security Considerations](#security-considerations)\nsection before using packaging systems and pre-built files.\n\nForge uses a [CommonJS][] module structure with a build process for browser\nbundles. The older [0.6.x][] branch with standalone files is available but will\nnot be regularly updated.\n\n### Node.js\n\nIf you want to use forge with [Node.js][], it is available through `npm`:\n\nhttps://npmjs.org/package/node-forge\n\nInstallation:\n\n npm install node-forge\n\nYou can then use forge as a regular module:\n\n```js\nvar forge = require('node-forge');\n```\n\nThe npm package includes pre-built `forge.min.js`, `forge.all.min.js`, and\n`prime.worker.min.js` using the [UMD][] format.\n\n### Bundle / Bower\n\nEach release is published in a separate repository as pre-built and minimized\nbasic forge bundles using the [UMD][] format.\n\nhttps://github.com/digitalbazaar/forge-dist\n\nThis bundle can be used in many environments. In particular it can be installed\nwith [Bower][]:\n\n bower install forge\n\n### jsDelivr CDN\n\nTo use it via [jsDelivr](https://www.jsdelivr.com/package/npm/node-forge) include this in your html:\n\n```html\n<script src=\"https://cdn.jsdelivr.net/npm/node-forge@0.7.0/dist/forge.min.js\"></script>\n```\n\n### unpkg CDN\n\nTo use it via [unpkg](https://unpkg.com/#/) include this in your html:\n\n```html\n<script src=\"https://unpkg.com/node-forge@0.7.0/dist/forge.min.js\"></script>\n```\n\n### Development Requirements\n\nThe core JavaScript has the following requirements to build and test:\n\n* Building a browser bundle:\n * Node.js\n * npm\n* Testing\n * Node.js\n * npm\n * Chrome, Firefox, Safari (optional)\n\nSome special networking features can optionally use a Flash component. See the\n[Flash README](./flash/README.md) for details.\n\n### Building for a web browser\n\nTo create single file bundles for use with browsers run the following:\n\n npm install\n npm run build\n\nThis will create single non-minimized and minimized files that can be\nincluded in the browser:\n\n dist/forge.js\n dist/forge.min.js\n\nA bundle that adds some utilities and networking support is also available:\n\n dist/forge.all.js\n dist/forge.all.min.js\n\nInclude the file via:\n\n```html\n<script src=\"YOUR_SCRIPT_PATH/forge.js\"></script>\n```\nor\n```html\n<script src=\"YOUR_SCRIPT_PATH/forge.min.js\"></script>\n```\n\nThe above bundles will synchronously create a global 'forge' object.\n\n**Note**: These bundles will not include any WebWorker scripts (eg:\n`dist/prime.worker.js`), so these will need to be accessible from the browser\nif any WebWorkers are used.\n\n### Building a custom browser bundle\n\nThe build process uses [webpack][] and the [config](./webpack.config.js) file\ncan be modified to generate a file or files that only contain the parts of\nforge you need.\n\n[Browserify][] override support is also present in `package.json`.\n\nTesting\n-------\n\nSee the [testing README](./tests/README.md) for full details.\n\n### Prepare to run tests\n\n npm install\n\n### Running automated tests with Node.js\n\nForge natively runs in a [Node.js][] environment:\n\n npm test\n\n### Running automated tests with PhantomJS\n\nAutomated testing is done via [Karma][]. By default it will run the tests in a\nheadless manner with PhantomJS.\n\n npm run test-karma\n\nIs 'mocha' reporter output too verbose? Other reporters are available. Try\n'dots', 'progress', or 'tap'.\n\n npm run test-karma -- --reporters progress\n\nBy default [webpack][] is used. [Browserify][] can also be used.\n\n BUNDLER=browserify npm run test-karma\n\n### Running automated tests with one or more browsers\n\nYou can also specify one or more browsers to use.\n\n npm run test-karma -- --browsers Chrome,Firefox,Safari,PhantomJS\n\nThe reporter option and `BUNDLER` environment variable can also be used.\n\n### Running manual tests in a browser\n\nTesting in a browser uses [webpack][] to combine forge and all tests and then\nloading the result in a browser. A simple web server is provided that will\noutput the HTTP or HTTPS URLs to load. It also will start a simple Flash Policy\nServer. Unit tests and older legacy tests are provided. Custom ports can be\nused by running `node tests/server.js` manually.\n\nTo run the unit tests in a browser a special forge build is required:\n\n npm run test-build\n\nTo run legacy browser based tests the main forge build is required:\n\n npm run build\n\nThe tests are run with a custom server that prints out the URLs to use:\n\n npm run test-server\n\n### Running other tests\n\nThere are some other random tests and benchmarks available in the tests\ndirectory.\n\n### Coverage testing\n\nTo perform coverage testing of the unit tests, run the following. The results\nwill be put in the `coverage/` directory. Note that coverage testing can slow\ndown some tests considerably.\n\n npm install\n npm run coverage\n\nContributing\n------------\n\nAny contributions (eg: PRs) that are accepted will be brought under the same\nlicense used by the rest of the Forge project. This license allows Forge to\nbe used under the terms of either the BSD License or the GNU General Public\nLicense (GPL) Version 2.\n\nSee: [LICENSE](https://github.com/digitalbazaar/forge/blob/cbebca3780658703d925b61b2caffb1d263a6c1d/LICENSE)\n\nIf a contribution contains 3rd party source code with its own license, it\nmay retain it, so long as that license is compatible with the Forge license.\n\nAPI\n---\n\n<a name=\"options\" />\n\n### Options\n\nIf at any time you wish to disable the use of native code, where available,\nfor particular forge features like its secure random number generator, you\nmay set the ```forge.options.usePureJavaScript``` flag to ```true```. It is\nnot recommended that you set this flag as native code is typically more\nperformant and may have stronger security properties. It may be useful to\nset this flag to test certain features that you plan to run in environments\nthat are different from your testing environment.\n\nTo disable native code when including forge in the browser:\n\n```js\n// run this *after* including the forge script\nforge.options.usePureJavaScript = true;\n```\n\nTo disable native code when using Node.js:\n\n```js\nvar forge = require('node-forge');\nforge.options.usePureJavaScript = true;\n```\n\nTransports\n----------\n\n<a name=\"tls\" />\n\n### TLS\n\nProvides a native javascript client and server-side [TLS][] implementation.\n\n__Examples__\n\n```js\n// create TLS client\nvar client = forge.tls.createConnection({\n server: false,\n caStore: /* Array of PEM-formatted certs or a CA store object */,\n sessionCache: {},\n // supported cipher suites in order of preference\n cipherSuites: [\n forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,\n forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],\n virtualHost: 'example.com',\n verify: function(connection, verified, depth, certs) {\n if(depth === 0) {\n var cn = certs[0].subject.getField('CN').value;\n if(cn !== 'example.com') {\n verified = {\n alert: forge.tls.Alert.Description.bad_certificate,\n message: 'Certificate common name does not match hostname.'\n };\n }\n }\n return verified;\n },\n connected: function(connection) {\n console.log('connected');\n // send message to server\n connection.prepare(forge.util.encodeUtf8('Hi server!'));\n /* NOTE: experimental, start heartbeat retransmission timer\n myHeartbeatTimer = setInterval(function() {\n connection.prepareHeartbeatRequest(forge.util.createBuffer('1234'));\n }, 5*60*1000);*/\n },\n /* provide a client-side cert if you want\n getCertificate: function(connection, hint) {\n return myClientCertificate;\n },\n /* the private key for the client-side cert if provided */\n getPrivateKey: function(connection, cert) {\n return myClientPrivateKey;\n },\n tlsDataReady: function(connection) {\n // TLS data (encrypted) is ready to be sent to the server\n sendToServerSomehow(connection.tlsData.getBytes());\n // if you were communicating with the server below, you'd do:\n // server.process(connection.tlsData.getBytes());\n },\n dataReady: function(connection) {\n // clear data from the server is ready\n console.log('the server sent: ' +\n forge.util.decodeUtf8(connection.data.getBytes()));\n // close connection\n connection.close();\n },\n /* NOTE: experimental\n heartbeatReceived: function(connection, payload) {\n // restart retransmission timer, look at payload\n clearInterval(myHeartbeatTimer);\n myHeartbeatTimer = setInterval(function() {\n connection.prepareHeartbeatRequest(forge.util.createBuffer('1234'));\n }, 5*60*1000);\n payload.getBytes();\n },*/\n closed: function(connection) {\n console.log('disconnected');\n },\n error: function(connection, error) {\n console.log('uh oh', error);\n }\n});\n\n// start the handshake process\nclient.handshake();\n\n// when encrypted TLS data is received from the server, process it\nclient.process(encryptedBytesFromServer);\n\n// create TLS server\nvar server = forge.tls.createConnection({\n server: true,\n caStore: /* Array of PEM-formatted certs or a CA store object */,\n sessionCache: {},\n // supported cipher suites in order of preference\n cipherSuites: [\n forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,\n forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],\n // require a client-side certificate if you want\n verifyClient: true,\n verify: function(connection, verified, depth, certs) {\n if(depth === 0) {\n var cn = certs[0].subject.getField('CN').value;\n if(cn !== 'the-client') {\n verified = {\n alert: forge.tls.Alert.Description.bad_certificate,\n message: 'Certificate common name does not match expected client.'\n };\n }\n }\n return verified;\n },\n connected: function(connection) {\n console.log('connected');\n // send message to client\n connection.prepare(forge.util.encodeUtf8('Hi client!'));\n /* NOTE: experimental, start heartbeat retransmission timer\n myHeartbeatTimer = setInterval(function() {\n connection.prepareHeartbeatRequest(forge.util.createBuffer('1234'));\n }, 5*60*1000);*/\n },\n getCertificate: function(connection, hint) {\n return myServerCertificate;\n },\n getPrivateKey: function(connection, cert) {\n return myServerPrivateKey;\n },\n tlsDataReady: function(connection) {\n // TLS data (encrypted) is ready to be sent to the client\n sendToClientSomehow(connection.tlsData.getBytes());\n // if you were communicating with the client above you'd do:\n // client.process(connection.tlsData.getBytes());\n },\n dataReady: function(connection) {\n // clear data from the client is ready\n console.log('the client sent: ' +\n forge.util.decodeUtf8(connection.data.getBytes()));\n // close connection\n connection.close();\n },\n /* NOTE: experimental\n heartbeatReceived: function(connection, payload) {\n // restart retransmission timer, look at payload\n clearInterval(myHeartbeatTimer);\n myHeartbeatTimer = setInterval(function() {\n connection.prepareHeartbeatRequest(forge.util.createBuffer('1234'));\n }, 5*60*1000);\n payload.getBytes();\n },*/\n closed: function(connection) {\n console.log('disconnected');\n },\n error: function(connection, error) {\n console.log('uh oh', error);\n }\n});\n\n// when encrypted TLS data is received from the client, process it\nserver.process(encryptedBytesFromClient);\n```\n\nConnect to a TLS server using node's net.Socket:\n\n```js\nvar socket = new net.Socket();\n\nvar client = forge.tls.createConnection({\n server: false,\n verify: function(connection, verified, depth, certs) {\n // skip verification for testing\n console.log('[tls] server certificate verified');\n return true;\n },\n connected: function(connection) {\n console.log('[tls] connected');\n // prepare some data to send (note that the string is interpreted as\n // 'binary' encoded, which works for HTTP which only uses ASCII, use\n // forge.util.encodeUtf8(str) otherwise\n client.prepare('GET / HTTP/1.0\\r\\n\\r\\n');\n },\n tlsDataReady: function(connection) {\n // encrypted data is ready to be sent to the server\n var data = connection.tlsData.getBytes();\n socket.write(data, 'binary'); // encoding should be 'binary'\n },\n dataReady: function(connection) {\n // clear data from the server is ready\n var data = connection.data.getBytes();\n console.log('[tls] data received from the server: ' + data);\n },\n closed: function() {\n console.log('[tls] disconnected');\n },\n error: function(connection, error) {\n console.log('[tls] error', error);\n }\n});\n\nsocket.on('connect', function() {\n console.log('[socket] connected');\n client.handshake();\n});\nsocket.on('data', function(data) {\n client.process(data.toString('binary')); // encoding should be 'binary'\n});\nsocket.on('end', function() {\n console.log('[socket] disconnected');\n});\n\n// connect to google.com\nsocket.connect(443, 'google.com');\n\n// or connect to gmail's imap server (but don't send the HTTP header above)\n//socket.connect(993, 'imap.gmail.com');\n```\n\n<a name=\"http\" />\n\n### HTTP\n\nProvides a native [JavaScript][] mini-implementation of an http client that\nuses pooled sockets.\n\n__Examples__\n\n```js\n// create an HTTP GET request\nvar request = forge.http.createRequest({method: 'GET', path: url.path});\n\n// send the request somewhere\nsendSomehow(request.toString());\n\n// receive response\nvar buffer = forge.util.createBuffer();\nvar response = forge.http.createResponse();\nvar someAsyncDataHandler = function(bytes) {\n if(!response.bodyReceived) {\n buffer.putBytes(bytes);\n if(!response.headerReceived) {\n if(response.readHeader(buffer)) {\n console.log('HTTP response header: ' + response.toString());\n }\n }\n if(response.headerReceived && !response.bodyReceived) {\n if(response.readBody(buffer)) {\n console.log('HTTP response body: ' + response.body);\n }\n }\n }\n};\n```\n\n<a name=\"ssh\" />\n\n### SSH\n\nProvides some SSH utility functions.\n\n__Examples__\n\n```js\n// encodes (and optionally encrypts) a private RSA key as a Putty PPK file\nforge.ssh.privateKeyToPutty(privateKey, passphrase, comment);\n\n// encodes a public RSA key as an OpenSSH file\nforge.ssh.publicKeyToOpenSSH(key, comment);\n\n// encodes a private RSA key as an OpenSSH file\nforge.ssh.privateKeyToOpenSSH(privateKey, passphrase);\n\n// gets the SSH public key fingerprint in a byte buffer\nforge.ssh.getPublicKeyFingerprint(key);\n\n// gets a hex-encoded, colon-delimited SSH public key fingerprint\nforge.ssh.getPublicKeyFingerprint(key, {encoding: 'hex', delimiter: ':'});\n```\n\n<a name=\"xhr\" />\n\n### XHR\n\nProvides an XmlHttpRequest implementation using forge.http as a backend.\n\n__Examples__\n\n```js\n// TODO\n```\n\n<a name=\"socket\" />\n\n### Sockets\n\nProvides an interface to create and use raw sockets provided via Flash.\n\n__Examples__\n\n```js\n// TODO\n```\n\nCiphers\n-------\n\n<a name=\"cipher\" />\n\n### CIPHER\n\nProvides a basic API for block encryption and decryption. There is built-in\nsupport for the ciphers: [AES][], [3DES][], and [DES][], and for the modes\nof operation: [ECB][], [CBC][], [CFB][], [OFB][], [CTR][], and [GCM][].\n\nThese algorithms are currently supported:\n\n* AES-ECB\n* AES-CBC\n* AES-CFB\n* AES-OFB\n* AES-CTR\n* AES-GCM\n* 3DES-ECB\n* 3DES-CBC\n* DES-ECB\n* DES-CBC\n\nWhen using an [AES][] algorithm, the key size will determine whether\nAES-128, AES-192, or AES-256 is used (all are supported). When a [DES][]\nalgorithm is used, the key size will determine whether [3DES][] or regular\n[DES][] is used. Use a [3DES][] algorithm to enforce Triple-DES.\n\n__Examples__\n\n```js\n// generate a random key and IV\n// Note: a key size of 16 bytes will use AES-128, 24 => AES-192, 32 => AES-256\nvar key = forge.random.getBytesSync(16);\nvar iv = forge.random.getBytesSync(16);\n\n/* alternatively, generate a password-based 16-byte key\nvar salt = forge.random.getBytesSync(128);\nvar key = forge.pkcs5.pbkdf2('password', salt, numIterations, 16);\n*/\n\n// encrypt some bytes using CBC mode\n// (other modes include: ECB, CFB, OFB, CTR, and GCM)\n// Note: CBC and ECB modes use PKCS#7 padding as default\nvar cipher = forge.cipher.createCipher('AES-CBC', key);\ncipher.start({iv: iv});\ncipher.update(forge.util.createBuffer(someBytes));\ncipher.finish();\nvar encrypted = cipher.output;\n// outputs encrypted hex\nconsole.log(encrypted.toHex());\n\n// decrypt some bytes using CBC mode\n// (other modes include: CFB, OFB, CTR, and GCM)\nvar decipher = forge.cipher.createDecipher('AES-CBC', key);\ndecipher.start({iv: iv});\ndecipher.update(encrypted);\nvar result = decipher.finish(); // check 'result' for true/false\n// outputs decrypted hex\nconsole.log(decipher.output.toHex());\n\n// decrypt bytes using CBC mode and streaming\n// Performance can suffer for large multi-MB inputs due to buffer\n// manipulations. Stream processing in chunks can offer significant\n// improvement. CPU intensive update() calls could also be performed with\n// setImmediate/setTimeout to avoid blocking the main browser UI thread (not\n// shown here). Optimal block size depends on the JavaScript VM and other\n// factors. Encryption can use a simple technique for increased performance.\nvar encryptedBytes = encrypted.bytes();\nvar decipher = forge.cipher.createDecipher('AES-CBC', key);\ndecipher.start({iv: iv});\nvar length = encryptedBytes.length;\nvar chunkSize = 1024 * 64;\nvar index = 0;\nvar decrypted = '';\ndo {\n decrypted += decipher.output.getBytes();\n var buf = forge.util.createBuffer(encryptedBytes.substr(index, chunkSize));\n decipher.update(buf);\n index += chunkSize;\n} while(index < length);\nvar result = decipher.finish();\nassert(result);\ndecrypted += decipher.output.getBytes();\nconsole.log(forge.util.bytesToHex(decrypted));\n\n// encrypt some bytes using GCM mode\nvar cipher = forge.cipher.createCipher('AES-GCM', key);\ncipher.start({\n iv: iv, // should be a 12-byte binary-encoded string or byte buffer\n additionalData: 'binary-encoded string', // optional\n tagLength: 128 // optional, defaults to 128 bits\n});\ncipher.update(forge.util.createBuffer(someBytes));\ncipher.finish();\nvar encrypted = cipher.output;\nvar tag = cipher.mode.tag;\n// outputs encrypted hex\nconsole.log(encrypted.toHex());\n// outputs authentication tag\nconsole.log(tag.toHex());\n\n// decrypt some bytes using GCM mode\nvar decipher = forge.cipher.createDecipher('AES-GCM', key);\ndecipher.start({\n iv: iv,\n additionalData: 'binary-encoded string', // optional\n tagLength: 128, // optional, defaults to 128 bits\n tag: tag // authentication tag from encryption\n});\ndecipher.update(encrypted);\nvar pass = decipher.finish();\n// pass is false if there was a failure (eg: authentication tag didn't match)\nif(pass) {\n // outputs decrypted hex\n console.log(decipher.output.toHex());\n}\n```\n\nUsing forge in Node.js to match openssl's \"enc\" command line tool (**Note**: OpenSSL \"enc\" uses a non-standard file format with a custom key derivation function and a fixed iteration count of 1, which some consider less secure than alternatives such as [OpenPGP](https://tools.ietf.org/html/rfc4880)/[GnuPG](https://www.gnupg.org/)):\n\n```js\nvar forge = require('node-forge');\nvar fs = require('fs');\n\n// openssl enc -des3 -in input.txt -out input.enc\nfunction encrypt(password) {\n var input = fs.readFileSync('input.txt', {encoding: 'binary'});\n\n // 3DES key and IV sizes\n var keySize = 24;\n var ivSize = 8;\n\n // get derived bytes\n // Notes:\n // 1. If using an alternative hash (eg: \"-md sha1\") pass\n // \"forge.md.sha1.create()\" as the final parameter.\n // 2. If using \"-nosalt\", set salt to null.\n var salt = forge.random.getBytesSync(8);\n // var md = forge.md.sha1.create(); // \"-md sha1\"\n var derivedBytes = forge.pbe.opensslDeriveBytes(\n password, salt, keySize + ivSize/*, md*/);\n var buffer = forge.util.createBuffer(derivedBytes);\n var key = buffer.getBytes(keySize);\n var iv = buffer.getBytes(ivSize);\n\n var cipher = forge.cipher.createCipher('3DES-CBC', key);\n cipher.start({iv: iv});\n cipher.update(forge.util.createBuffer(input, 'binary'));\n cipher.finish();\n\n var output = forge.util.createBuffer();\n\n // if using a salt, prepend this to the output:\n if(salt !== null) {\n output.putBytes('Salted__'); // (add to match openssl tool output)\n output.putBytes(salt);\n }\n output.putBuffer(cipher.output);\n\n fs.writeFileSync('input.enc', output.getBytes(), {encoding: 'binary'});\n}\n\n// openssl enc -d -des3 -in input.enc -out input.dec.txt\nfunction decrypt(password) {\n var input = fs.readFileSync('input.enc', {encoding: 'binary'});\n\n // parse salt from input\n input = forge.util.createBuffer(input, 'binary');\n // skip \"Salted__\" (if known to be present)\n input.getBytes('Salted__'.length);\n // read 8-byte salt\n var salt = input.getBytes(8);\n\n // Note: if using \"-nosalt\", skip above parsing and use\n // var salt = null;\n\n // 3DES key and IV sizes\n var keySize = 24;\n var ivSize = 8;\n\n var derivedBytes = forge.pbe.opensslDeriveBytes(\n password, salt, keySize + ivSize);\n var buffer = forge.util.createBuffer(derivedBytes);\n var key = buffer.getBytes(keySize);\n var iv = buffer.getBytes(ivSize);\n\n var decipher = forge.cipher.createDecipher('3DES-CBC', key);\n decipher.start({iv: iv});\n decipher.update(input);\n var result = decipher.finish(); // check 'result' for true/false\n\n fs.writeFileSync(\n 'input.dec.txt', decipher.output.getBytes(), {encoding: 'binary'});\n}\n```\n\n<a name=\"aes\" />\n\n### AES\n\nProvides [AES][] encryption and decryption in [CBC][], [CFB][], [OFB][],\n[CTR][], and [GCM][] modes. See [CIPHER](#cipher) for examples.\n\n<a name=\"des\" />\n\n### DES\n\nProvides [3DES][] and [DES][] encryption and decryption in [ECB][] and\n[CBC][] modes. See [CIPHER](#cipher) for examples.\n\n<a name=\"rc2\" />\n\n### RC2\n\n__Examples__\n\n```js\n// generate a random key and IV\nvar key = forge.random.getBytesSync(16);\nvar iv = forge.random.getBytesSync(8);\n\n// encrypt some bytes\nvar cipher = forge.rc2.createEncryptionCipher(key);\ncipher.start(iv);\ncipher.update(forge.util.createBuffer(someBytes));\ncipher.finish();\nvar encrypted = cipher.output;\n// outputs encrypted hex\nconsole.log(encrypted.toHex());\n\n// decrypt some bytes\nvar cipher = forge.rc2.createDecryptionCipher(key);\ncipher.start(iv);\ncipher.update(encrypted);\ncipher.finish();\n// outputs decrypted hex\nconsole.log(cipher.output.toHex());\n```\n\nPKI\n---\n\nProvides [X.509][] certificate support, ED25519 key generation and\nsigning/verifying, and RSA public and private key encoding, decoding,\nencryption/decryption, and signing/verifying.\n\n<a name=\"ed25519\" />\n\n### ED25519\n\nSpecial thanks to [TweetNaCl.js][] for providing the bulk of the implementation.\n\n__Examples__\n\n```js\nvar ed25519 = forge.pki.ed25519;\n\n// generate a random ED25519 keypair\nvar keypair = ed25519.generateKeyPair();\n// `keypair.publicKey` is a node.js Buffer or Uint8Array\n// `keypair.privateKey` is a node.js Buffer or Uint8Array\n\n// generate a random ED25519 keypair based on a random 32-byte seed\nvar seed = forge.random.getBytesSync(32);\nvar keypair = ed25519.generateKeyPair({seed: seed});\n\n// generate a random ED25519 keypair based on a \"password\" 32-byte seed\nvar password = 'Mai9ohgh6ahxee0jutheew0pungoozil';\nvar seed = new forge.util.ByteBuffer(password, 'utf8');\nvar keypair = ed25519.generateKeyPair({seed: seed});\n\n// sign a UTF-8 message\nvar signature = ED25519.sign({\n message: 'test',\n // also accepts `binary` if you want to pass a binary string\n encoding: 'utf8',\n // node.js Buffer, Uint8Array, forge ByteBuffer, binary string\n privateKey: privateKey\n});\n// `signature` is a node.js Buffer or Uint8Array\n\n// sign a message passed as a buffer\nvar signature = ED25519.sign({\n // also accepts a forge ByteBuffer or Uint8Array\n message: new Buffer('test', 'utf8'),\n privateKey: privateKey\n});\n\n// sign a message digest (shorter \"message\" == better performance)\nvar md = forge.md.sha256.create();\nmd.update('test', 'utf8');\nvar signature = ED25519.sign({\n md: md,\n privateKey: privateKey\n});\n\n// verify a signature on a UTF-8 message\nvar verified = ED25519.verify({\n message: 'test',\n encoding: 'utf8',\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n signature: signature,\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n publicKey: publicKey\n});\n// `verified` is true/false\n\n// sign a message passed as a buffer\nvar verified = ED25519.verify({\n // also accepts a forge ByteBuffer or Uint8Array\n message: new Buffer('test', 'utf8'),\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n signature: signature,\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n publicKey: publicKey\n});\n\n// verify a signature on a message digest\nvar md = forge.md.sha256.create();\nmd.update('test', 'utf8');\nvar verified = ED25519.verify({\n md: md,\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n signature: signature,\n // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string\n publicKey: publicKey\n});\n```\n\n<a name=\"rsa\" />\n\n### RSA\n\n__Examples__\n\n```js\nvar rsa = forge.pki.rsa;\n\n// generate an RSA key pair synchronously\n// *NOT RECOMMENDED* -- can be significantly slower than async and will not\n// use native APIs if available.\nvar keypair = rsa.generateKeyPair({bits: 2048, e: 0x10001});\n\n// generate an RSA key pair asynchronously (uses web workers if available)\n// use workers: -1 to run a fast core estimator to optimize # of workers\n// *RECOMMENDED* - can be significantly faster than sync -- and will use\n// native APIs if available.\nrsa.generateKeyPair({bits: 2048, workers: 2}, function(err, keypair) {\n // keypair.privateKey, keypair.publicKey\n});\n\n// generate an RSA key pair in steps that attempt to run for a specified period\n// of time on the main JS thread\nvar state = rsa.createKeyPairGenerationState(2048, 0x10001);\nvar step = function() {\n // run for 100 ms\n if(!rsa.stepKeyPairGenerationState(state, 100)) {\n setTimeout(step, 1);\n }\n else {\n // done, turn off progress indicator, use state.keys\n }\n};\n// turn on progress indicator, schedule generation to run\nsetTimeout(step);\n\n// sign data with a private key and output DigestInfo DER-encoded bytes\n// (defaults to RSASSA PKCS#1 v1.5)\nvar md = forge.md.sha1.create();\nmd.update('sign this', 'utf8');\nvar signature = privateKey.sign(md);\n\n// verify data with a public key\n// (defaults to RSASSA PKCS#1 v1.5)\nvar verified = publicKey.verify(md.digest().bytes(), signature);\n\n// sign data using RSASSA-PSS where PSS uses a SHA-1 hash, a SHA-1 based\n// masking function MGF1, and a 20 byte salt\nvar md = forge.md.sha1.create();\nmd.update('sign this', 'utf8');\nvar pss = forge.pss.create({\n md: forge.md.sha1.create(),\n mgf: forge.mgf.mgf1.create(forge.md.sha1.create()),\n saltLength: 20\n // optionally pass 'prng' with a custom PRNG implementation\n // optionalls pass 'salt' with a forge.util.ByteBuffer w/custom salt\n});\nvar signature = privateKey.sign(md, pss);\n\n// verify RSASSA-PSS signature\nvar pss = forge.pss.create({\n md: forge.md.sha1.create(),\n mgf: forge.mgf.mgf1.create(forge.md.sha1.create()),\n saltLength: 20\n // optionally pass 'prng' with a custom PRNG implementation\n});\nvar md = forge.md.sha1.create();\nmd.update('sign this', 'utf8');\npublicKey.verify(md.digest().getBytes(), signature, pss);\n\n// encrypt data with a public key (defaults to RSAES PKCS#1 v1.5)\nvar encrypted = publicKey.encrypt(bytes);\n\n// decrypt data with a private key (defaults to RSAES PKCS#1 v1.5)\nvar decrypted = privateKey.decrypt(encrypted);\n\n// encrypt data with a public key using RSAES PKCS#1 v1.5\nvar encrypted = publicKey.encrypt(bytes, 'RSAES-PKCS1-V1_5');\n\n// decrypt data with a private key using RSAES PKCS#1 v1.5\nvar decrypted = privateKey.decrypt(encrypted, 'RSAES-PKCS1-V1_5');\n\n// encrypt data with a public key using RSAES-OAEP\nvar encrypted = publicKey.encrypt(bytes, 'RSA-OAEP');\n\n// decrypt data with a private key using RSAES-OAEP\nvar decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP');\n\n// encrypt data with a public key using RSAES-OAEP/SHA-256\nvar encrypted = publicKey.encrypt(bytes, 'RSA-OAEP', {\n md: forge.md.sha256.create()\n});\n\n// decrypt data with a private key using RSAES-OAEP/SHA-256\nvar decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP', {\n md: forge.md.sha256.create()\n});\n\n// encrypt data with a public key using RSAES-OAEP/SHA-256/MGF1-SHA-1\n// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Padding\nvar encrypted = publicKey.encrypt(bytes, 'RSA-OAEP', {\n md: forge.md.sha256.create(),\n mgf1: {\n md: forge.md.sha1.create()\n }\n});\n\n// decrypt data with a private key using RSAES-OAEP/SHA-256/MGF1-SHA-1\n// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Padding\nvar decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP', {\n md: forge.md.sha256.create(),\n mgf1: {\n md: forge.md.sha1.create()\n }\n});\n\n```\n\n<a name=\"rsakem\" />\n\n### RSA-KEM\n\n__Examples__\n\n```js\n// generate an RSA key pair asynchronously (uses web workers if available)\n// use workers: -1 to run a fast core estimator to optimize # of workers\nforge.rsa.generateKeyPair({bits: 2048, workers: -1}, function(err, keypair) {\n // keypair.privateKey, keypair.publicKey\n});\n\n// generate and encapsulate a 16-byte secret key\nvar kdf1 = new forge.kem.kdf1(forge.md.sha1.create());\nvar kem = forge.kem.rsa.create(kdf1);\nvar result = kem.encrypt(keypair.publicKey, 16);\n// result has 'encapsulation' and 'key'\n\n// encrypt some bytes\nvar iv = forge.random.getBytesSync(12);\nvar someBytes = 'hello world!';\nvar cipher = forge.cipher.createCipher('AES-GCM', result.key);\ncipher.start({iv: iv});\ncipher.update(forge.util.createBuffer(someBytes));\ncipher.finish();\nvar encrypted = cipher.output.getBytes();\nvar tag = cipher.mode.tag.getBytes();\n\n// send 'encrypted', 'iv', 'tag', and result.encapsulation to recipient\n\n// decrypt encapsulated 16-byte secret key\nvar kdf1 = new forge.kem.kdf1(forge.md.sha1.create());\nvar kem = forge.kem.rsa.create(kdf1);\nvar key = kem.decrypt(keypair.privateKey, result.encapsulation, 16);\n\n// decrypt some bytes\nvar decipher = forge.cipher.createDecipher('AES-GCM', key);\ndecipher.start({iv: iv, tag: tag});\ndecipher.update(forge.util.createBuffer(encrypted));\nvar pass = decipher.finish();\n// pass is false if there was a failure (eg: authentication tag didn't match)\nif(pass) {\n // outputs 'hello world!'\n console.log(decipher.output.getBytes());\n}\n\n```\n\n<a name=\"x509\" />\n\n### X.509\n\n__Examples__\n\n```js\nvar pki = forge.pki;\n\n// convert a PEM-formatted public key to a Forge public key\nvar publicKey = pki.publicKeyFromPem(pem);\n\n// convert a Forge public key to PEM-format\nvar pem = pki.publicKeyToPem(publicKey);\n\n// convert an ASN.1 SubjectPublicKeyInfo to a Forge public key\nvar publicKey = pki.publicKeyFromAsn1(subjectPublicKeyInfo);\n\n// convert a Forge public key to an ASN.1 SubjectPublicKeyInfo\nvar subjectPublicKeyInfo = pki.publicKeyToAsn1(publicKey);\n\n// gets a SHA-1 RSAPublicKey fingerprint a byte buffer\npki.getPublicKeyFingerprint(key);\n\n// gets a SHA-1 SubjectPublicKeyInfo fingerprint a byte buffer\npki.getPublicKeyFingerprint(key, {type: 'SubjectPublicKeyInfo'});\n\n// gets a hex-encoded, colon-delimited SHA-1 RSAPublicKey public key fingerprint\npki.getPublicKeyFingerprint(key, {encoding: 'hex', delimiter: ':'});\n\n// gets a hex-encoded, colon-delimited SHA-1 SubjectPublicKeyInfo public key fingerprint\npki.getPublicKeyFingerprint(key, {\n type: 'SubjectPublicKeyInfo',\n encoding: 'hex',\n delimiter: ':'\n});\n\n// gets a hex-encoded, colon-delimited MD5 RSAPublicKey public key fingerprint\npki.getPublicKeyFingerprint(key, {\n md: forge.md.md5.create(),\n encoding: 'hex',\n delimiter: ':'\n});\n\n// creates a CA store\nvar caStore = pki.createCaStore([/* PEM-encoded cert */, ...]);\n\n// add a certificate to the CA store\ncaStore.addCertificate(certObjectOrPemString);\n\n// gets the issuer (its certificate) for the given certificate\nvar issuerCert = caStore.getIssuer(subjectCert);\n\n// verifies a certificate chain against a CA store\npki.verifyCertificateChain(caStore, chain, customVerifyCallback);\n\n// signs a certificate using the given private key\ncert.sign(privateKey);\n\n// signs a certificate using SHA-256 instead of SHA-1\ncert.sign(privateKey, forge.md.sha256.create());\n\n// verifies an issued certificate using the certificates public key\nvar verified = issuer.verify(issued);\n\n// generate a keypair and create an X.509v3 certificate\nvar keys = pki.rsa.generateKeyPair(2048);\nvar cert = pki.createCertificate();\ncert.publicKey = keys.publicKey;\n// alternatively set public key from a csr\n//cert.publicKey = csr.publicKey;\n// NOTE: serialNumber is the hex encoded value of an ASN.1 INTEGER.\n// Conforming CAs should ensure serialNumber is:\n// - no more than 20 octets\n// - non-negative (prefix a '00' if your value starts with a '1' bit)\ncert.serialNumber = '01';\ncert.validity.notBefore = new Date();\ncert.validity.notAfter = new Date();\ncert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear() + 1);\nvar attrs = [{\n name: 'commonName',\n value: 'example.org'\n}, {\n name: 'countryName',\n value: 'US'\n}, {\n shortName: 'ST',\n value: 'Virginia'\n}, {\n name: 'localityName',\n value: 'Blacksburg'\n}, {\n name: 'organizationName',\n value: 'Test'\n}, {\n shortName: 'OU',\n value: 'Test'\n}];\ncert.setSubject(attrs);\n// alternatively set subject from a csr\n//cert.setSubject(csr.subject.attributes);\ncert.setIssuer(attrs);\ncert.setExtensions([{\n name: 'basicConstraints',\n cA: true\n}, {\n name: 'keyUsage',\n keyCertSign: true,\n digitalSignature: true,\n nonRepudiation: true,\n keyEncipherment: true,\n dataEncipherment: true\n}, {\n name: 'extKeyUsage',\n serverAuth: true,\n clientAuth: true,\n codeSigning: true,\n emailProtection: true,\n timeStamping: true\n}, {\n name: 'nsCertType',\n client: true,\n server: true,\n email: true,\n objsign: true,\n sslCA: true,\n emailCA: true,\n objCA: true\n}, {\n name: 'subjectAltName',\n altNames: [{\n type: 6, // URI\n value: 'http://example.org/webid#me'\n }, {\n type: 7, // IP\n ip: '127.0.0.1'\n }]\n}, {\n name: 'subjectKeyIdentifier'\n}]);\n/* alternatively set extensions from a csr\nvar extensions = csr.getAttribute({name: 'extensionRequest'}).extensions;\n// optionally add more extensions\nextensions.push.apply(extensions, [{\n name: 'basicConstraints',\n cA: true\n}, {\n name: 'keyUsage',\n keyCertSign: true,\n digitalSignature: true,\n nonRepudiation: true,\n keyEncipherment: true,\n dataEncipherment: true\n}]);\ncert.setExtensions(extensions);\n*/\n// self-sign certificate\ncert.sign(keys.privateKey);\n\n// convert a Forge certificate to PEM\nvar pem = pki.certificateToPem(cert);\n\n// convert a Forge certificate from PEM\nvar cert = pki.certificateFromPem(pem);\n\n// convert an ASN.1 X.509x3 object to a Forge certificate\nvar cert = pki.certificateFromAsn1(obj);\n\n// convert a Forge certificate to an ASN.1 X.509v3 object\nvar asn1Cert = pki.certificateToAsn1(cert);\n```\n\n<a name=\"pkcs5\" />\n\n### PKCS#5\n\nProvides the password-based key-derivation function from [PKCS#5][].\n\n__Examples__\n\n```js\n// generate a password-based 16-byte key\n// note an optional message digest can be passed as the final parameter\nvar salt = forge.random.getBytesSync(128);\nvar derivedKey = forge.pkcs5.pbkdf2('password', salt, numIterations, 16);\n\n// generate key asynchronously\n// note an optional message digest can be passed before the callback\nforge.pkcs5.pbkdf2('password', salt, numIterations, 16, function(err, derivedKey) {\n // do something w/derivedKey\n});\n```\n\n<a name=\"pkcs7\" />\n\n### PKCS#7\n\nProvides cryptographically protected messages from [PKCS#7][].\n\n__Examples__\n\n```js\n// convert a message from PEM\nvar p7 = forge.pkcs7.messageFromPem(pem);\n// look at p7.recipients\n\n// find a recipient by the issuer of a certificate\nvar recipient = p7.findRecipient(cert);\n\n// decrypt\np7.decrypt(p7.recipients[0], privateKey);\n\n// create a p7 enveloped message\nvar p7 = forge.pkcs7.createEnvelopedData();\n\n// add a recipient\nvar cert = forge.pki.certificateFromPem(certPem);\np7.addRecipient(cert);\n\n// set content\np7.content = forge.util.createBuffer('Hello');\n\n// encrypt\np7.encrypt();\n\n// convert message to PEM\nvar pem = forge.pkcs7.messageToPem(p7);\n\n// create a degenerate PKCS#7 certificate container\n// (CRLs not currently supported, only certificates)\nvar p7 = forge.pkcs7.createSignedData();\np7.addCertificate(certOrCertPem1);\np7.addCertificate(certOrCertPem2);\nvar pem = forge.pkcs7.messageToPem(p7);\n\n// create PKCS#7 signed data with authenticatedAttributes\n// attributes include: PKCS#9 content-type, message-digest, and signing-time\nvar p7 = forge.pkcs7.createSignedData();\np7.content = forge.util.createBuffer('Some content to be signed.', 'utf8');\np7.addCertificate(certOrCertPem);\np7.addSigner({\n key: privateKeyAssociatedWithCert,\n certificate: certOrCertPem,\n digestAlgorithm: forge.pki.oids.sha256,\n authenticatedAttributes: [{\n type: forge.pki.oids.contentType,\n value: forge.pki.oids.data\n }, {\n type: forge.pki.oids.messageDigest\n // value will be auto-populated at signing time\n }, {\n type: forge.pki.oids.signingTime,\n // value can also be auto-populated at signing time\n value: new Date()\n }]\n});\np7.sign();\nvar pem = forge.pkcs7.messageToPem(p7);\n\n```\n\n<a name=\"pkcs8\" />\n\n### PKCS#8\n\n__Examples__\n\n```js\nvar pki = forge.pki;\n\n// convert a PEM-formatted private key to a Forge private key\nvar privateKey = pki.privateKeyFromPem(pem);\n\n// convert a Forge private key to PEM-format\nvar pem = pki.privateKeyToPem(privateKey);\n\n// convert an ASN.1 PrivateKeyInfo or RSAPrivateKey to a Forge private key\nvar privateKey = pki.privateKeyFromAsn1(rsaPrivateKey);\n\n// convert a Forge private key to an ASN.1 RSAPrivateKey\nvar rsaPrivateKey = pki.privateKeyToAsn1(privateKey);\n\n// wrap an RSAPrivateKey ASN.1 object in a PKCS#8 ASN.1 PrivateKeyInfo\nvar privateKeyInfo = pki.wrapRsaPrivateKey(rsaPrivateKey);\n\n// convert a PKCS#8 ASN.1 PrivateKeyInfo to PEM\nvar pem = pki.privateKeyInfoToPem(privateKeyInfo);\n\n// encrypts a PrivateKeyInfo and outputs an EncryptedPrivateKeyInfo\nvar encryptedPrivateKeyInfo = pki.encryptPrivateKeyInfo(\n privateKeyInfo, 'password', {\n algorithm: 'aes256', // 'aes128', 'aes192', 'aes256', '3des'\n });\n\n// decrypts an ASN.1 EncryptedPrivateKeyInfo\nvar privateKeyInfo = pki.decryptPrivateKeyInfo(\n encryptedPrivateKeyInfo, 'password');\n\n// converts an EncryptedPrivateKeyInfo to PEM\nvar pem = pki.encryptedPrivateKeyToPem(encryptedPrivateKeyInfo);\n\n// converts a PEM-encoded EncryptedPrivateKeyInfo to ASN.1 format\nvar encryptedPrivateKeyInfo = pki.encryptedPrivateKeyFromPem(pem);\n\n// wraps and encrypts a Forge private key and outputs it in PEM format\nvar pem = pki.encryptRsaPrivateKey(privateKey, 'password');\n\n// encrypts a Forge private key and outputs it in PEM format using OpenSSL's\n// proprietary legacy format + encapsulated PEM headers (DEK-Info)\nvar pem = pki.encryptRsaPrivateKey(privateKey, 'password', {legacy: true});\n\n// decrypts a PEM-formatted, encrypted private key\nvar privateKey = pki.decryptRsaPrivateKey(pem, 'password');\n\n// sets an RSA public key from a private key\nvar publicKey = pki.setRsaPublicKey(privateKey.n, privateKey.e);\n```\n\n<a name=\"pkcs10\" />\n\n### PKCS#10\n\nProvides certification requests or certificate signing requests (CSR) from\n[PKCS#10][].\n\n__Examples__\n\n```js\n// generate a key pair\nvar keys = forge.pki.rsa.generateKeyPair(1024);\n\n// create a certification request (CSR)\nvar csr = forge.pki.createCertificationRequest();\ncsr.publicKey = keys.publicKey;\ncsr.setSubject([{\n name: 'commonName',\n value: 'example.org'\n}, {\n name: 'countryName',\n value: 'US'\n}, {\n shortName: 'ST',\n value: 'Virginia'\n}, {\n name: 'localityName',\n value: 'Blacksburg'\n}, {\n name: 'organizationName',\n value: 'Test'\n}, {\n shortName: 'OU',\n value: 'Test'\n}]);\n// set (optional) attributes\ncsr.setAttributes([{\n name: 'challengePassword',\n value: 'password'\n}, {\n name: 'unstructuredName',\n value: 'My Company, Inc.'\n}, {\n name: 'extensionRequest',\n extensions: [{\n name: 'subjectAltName',\n altNames: [{\n // 2 is DNS type\n type: 2,\n value: 'test.domain.com'\n }, {\n type: 2,\n value: 'other.domain.com',\n }, {\n type: 2,\n value: 'www.domain.net'\n }]\n }]\n}]);\n\n// sign certification request\ncsr.sign(keys.privateKey);\n\n// verify certification request\nvar verified = csr.verify();\n\n// convert certification request to PEM-format\nvar pem = forge.pki.certificationRequestToPem(csr);\n\n// convert a Forge certification request from PEM-format\nvar csr = forge.pki.certificationRequestFromPem(pem);\n\n// get an attribute\ncsr.getAttribute({name: 'challengePassword'});\n\n// get extensions array\ncsr.getAttribute({name: 'extensionRequest'}).extensions;\n\n```\n\n<a name=\"pkcs12\" />\n\n### PKCS#12\n\nProvides the cryptographic archive file format from [PKCS#12][].\n\n**Note for Chrome/Firefox/iOS/similar users**: If you have trouble importing\na PKCS#12 container, try using the TripleDES algorithm. It can be passed\nto `forge.pkcs12.toPkcs12Asn1` using the `{algorithm: '3des'}` option.\n\n__Examples__\n\n```js\n// decode p12 from base64\nvar p12Der = forge.util.decode64(p12b64);\n// get p12 as ASN.1 object\nvar p12Asn1 = forge.asn1.fromDer(p12Der);\n// decrypt p12 using the password 'password'\nvar p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, 'password');\n// decrypt p12 using non-strict parsing mode (resolves some ASN.1 parse errors)\nvar p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, false, 'password');\n// decrypt p12 using literally no password (eg: Mac OS X/apple push)\nvar p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1);\n// decrypt p12 using an \"empty\" password (eg: OpenSSL with no password input)\nvar p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, '');\n// p12.safeContents is an array of safe contents, each of\n// which contains an array of safeBags\n\n// get bags by friendlyName\nvar bags = p12.getBags({friendlyName: 'test'});\n// bags are key'd by attribute type (here \"friendlyName\")\n// and the key values are an array of matching objects\nvar cert = bags.friendlyName[0];\n\n// get bags by localKeyId\nvar bags = p12.getBags({localKeyId: buffer});\n// bags are key'd by attribute type (here \"localKeyId\")\n// and the key values are an array of matching objects\nvar cert = bags.localKeyId[0];\n\n// get bags by localKeyId (input in hex)\nvar bags = p12.getBags({localKeyIdHex: '7b59377ff142d0be4565e9ac3d396c01401cd879'});\n// bags are key'd by attribute type (here \"localKeyId\", *not* \"localKeyIdHex\")\n// and the key values are an array of matching objects\nvar cert = bags.localKeyId[0];\n\n// get bags by type\nvar bags = p12.getBags({bagType: forge.pki.oids.certBag});\n// bags are key'd by bagType and each bagType key's value\n// is an array of matches (in this case, certificate objects)\nvar cert = bags[forge.pki.oids.certBag][0];\n\n// get bags by friendlyName and filter on bag type\nvar bags = p12.getBags({\n friendlyName: 'test',\n bagType: forge.pki.oids.certBag\n});\n\n// get key bags\nvar bags = p12.getBags({bagType: forge.pki.oids.keyBag});\n// get key\nvar bag = bags[forge.pki.oids.keyBag][0];\nvar key = bag.key;\n// if the key is in a format unrecognized by forge then\n// bag.key will be `null`, use bag.asn1 to get the ASN.1\n// representation of the key\nif(bag.key === null) {\n var keyAsn1 = bag.asn1;\n // can now convert back to DER/PEM/etc for export\n}\n\n// generate a p12 using AES (default)\nvar p12Asn1 = forge.pkcs12.toPkcs12Asn1(\n privateKey, certificateChain, 'password');\n\n// generate a p12 that can be imported by Chrome/Firefox/iOS\n// (requires the use of Triple DES instead of AES)\nvar p12Asn1 = forge.pkcs12.toPkcs12Asn1(\n privateKey, certificateChain, 'password',\n {algorithm: '3des'});\n\n// base64-encode p12\nvar p12Der = forge.asn1.toDer(p12Asn1).getBytes();\nvar p12b64 = forge.util.encode64(p12Der);\n\n// create download link for p12\nvar a = document.createElement('a');\na.download = 'example.p12';\na.setAttribute('href', 'data:application/x-pkcs12;base64,' + p12b64);\na.appendChild(document.createTextNode('Download'));\n```\n\n<a name=\"asn\" />\n\n### ASN.1\n\nProvides [ASN.1][] DER encoding and decoding.\n\n__Examples__\n\n```js\nvar asn1 = forge.asn1;\n\n// create a SubjectPublicKeyInfo\nvar subjectPublicKeyInfo =\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [\n // AlgorithmIdentifier\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [\n // algorithm\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false,\n asn1.oidToDer(pki.oids['rsaEncryption']).getBytes()),\n // parameters (null)\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '')\n ]),\n // subjectPublicKey\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, [\n // RSAPublicKey\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [\n // modulus (n)\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false,\n _bnToBytes(key.n)),\n // publicExponent (e)\n asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false,\n _bnToBytes(key.e))\n ])\n ])\n ]);\n\n// serialize an ASN.1 object to DER format\nvar derBuffer = asn1.toDer(subjectPublicKeyInfo);\n\n// deserialize to an ASN.1 object from a byte buffer filled with DER data\nvar object = asn1.fromDer(derBuffer);\n\n// convert an OID dot-separated string to a byte buffer\nvar derOidBuffer = asn1.oidToDer('1.2.840.113549.1.1.5');\n\n// convert a byte buffer with a DER-encoded OID to a dot-separated string\nconsole.log(asn1.derToOid(derOidBuffer));\n// output: 1.2.840.113549.1.1.5\n\n// validates that an ASN.1 object matches a particular ASN.1 structure and\n// captures data of interest from that structure for easy access\nvar publicKeyValidator = {\n name: 'SubjectPublicKeyInfo',\n tagClass: asn1.Class.UNIVERSAL,\n type: asn1.Type.SEQUENCE,\n constructed: true,\n captureAsn1: 'subjectPublicKeyInfo',\n value: [{\n name: 'SubjectPublicKeyInfo.AlgorithmIdentifier',\n tagClass: asn1.Class.UNIVERSAL,\n type: asn1.Type.SEQUENCE,\n constructed: true,\n value: [{\n name: 'AlgorithmIdentifier.algorithm',\n tagClass: asn1.Class.UNIVERSAL,\n type: asn1.Type.OID,\n constructed: false,\n capture: 'publicKeyOid'\n }]\n }, {\n // subjectPublicKey\n name: 'SubjectPublicKeyInfo.subjectPublicKey',\n tagClass: asn1.Class.UNIVERSAL,\n type: asn1.Type.BITSTRING,\n constructed: false,\n value: [{\n // RSAPublicKey\n name: 'SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey',\n tagClass: asn1.Class.UNIVERSAL,\n type: asn1.Type.SEQUENCE,\n constructed: true,\n optional: true,\n captureAsn1: 'rsaPublicKey'\n }]\n }]\n};\n\nvar capture = {};\nvar errors = [];\nif(!asn1.validate(\n publicKeyValidator, subjectPublicKeyInfo, validator, capture, errors)) {\n throw 'ASN.1 object is not a SubjectPublicKeyInfo.';\n}\n// capture.subjectPublicKeyInfo contains the full ASN.1 object\n// capture.rsaPublicKey contains the full ASN.1 object for the RSA public key\n// capture.publicKeyOid only contains the value for the OID\nvar oid = asn1.derToOid(capture.publicKeyOid);\nif(oid !== pki.oids['rsaEncryption']) {\n throw 'Unsupported OID.';\n}\n\n// pretty print an ASN.1 object to a string for debugging purposes\nasn1.prettyPrint(object);\n```\n\nMessage Digests\n----------------\n\n<a name=\"sha1\" />\n\n### SHA1\n\nProvides [SHA-1][] message digests.\n\n__Examples__\n\n```js\nvar md = forge.md.sha1.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: 2fd4e1c67a2d28fced849ee1bb76e7391b93eb12\n```\n\n<a name=\"sha256\" />\n\n### SHA256\n\nProvides [SHA-256][] message digests.\n\n__Examples__\n\n```js\nvar md = forge.md.sha256.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592\n```\n\n<a name=\"sha384\" />\n\n### SHA384\n\nProvides [SHA-384][] message digests.\n\n__Examples__\n\n```js\nvar md = forge.md.sha384.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c494011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1\n```\n\n<a name=\"sha512\" />\n\n### SHA512\n\nProvides [SHA-512][] message digests.\n\n__Examples__\n\n```js\n// SHA-512\nvar md = forge.md.sha512.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: 07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6\n\n// SHA-512/224\nvar md = forge.md.sha512.sha224.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: 944cd2847fb54558d4775db0485a50003111c8e5daa63fe722c6aa37\n\n// SHA-512/256\nvar md = forge.md.sha512.sha256.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: dd9d67b371519c339ed8dbd25af90e976a1eeefd4ad3d889005e532fc5bef04d\n```\n\n<a name=\"md5\" />\n\n### MD5\n\nProvides [MD5][] message digests.\n\n__Examples__\n\n```js\nvar md = forge.md.md5.create();\nmd.update('The quick brown fox jumps over the lazy dog');\nconsole.log(md.digest().toHex());\n// output: 9e107d9d372bb6826bd81d3542a419d6\n```\n\n<a name=\"hmac\" />\n\n### HMAC\n\nProvides [HMAC][] w/any supported message digest algorithm.\n\n__Examples__\n\n```js\nvar hmac = forge.hmac.create();\nhmac.start('sha1', 'Jefe');\nhmac.update('what do ya want for nothing?');\nconsole.log(hmac.digest().toHex());\n// output: effcdf6ae5eb2fa2d27416d5f184df9c259a7c79\n```\n\nUtilities\n---------\n\n<a name=\"prime\" />\n\n### Prime\n\nProvides an API for generating large, random, probable primes.\n\n__Examples__\n\n```js\n// generate a random prime on the main JS thread\nvar bits = 1024;\nforge.prime.generateProbablePrime(bits, function(err, num) {\n console.log('random prime', num.toString(16));\n});\n\n// generate a random prime using Web Workers (if available, otherwise\n// falls back to the main thread)\nvar bits = 1024;\nvar options = {\n algorithm: {\n name: 'PRIMEINC',\n workers: -1 // auto-optimize # of workers\n }\n};\nforge.prime.generateProbablePrime(bits, options, function(err, num) {\n console.log('random prime', num.toString(16));\n});\n```\n\n<a name=\"prng\" />\n\n### PRNG\n\nProvides a [Fortuna][]-based cryptographically-secure pseudo-random number\ngenerator, to be used with a cryptographic function backend, e.g. [AES][]. An\nimplementation using [AES][] as a backend is provided. An API for collecting\nentropy is given, though if window.crypto.getRandomValues is available, it will\nbe used automatically.\n\n__Examples__\n\n```js\n// get some random bytes synchronously\nvar bytes = forge.random.getBytesSync(32);\nconsole.log(forge.util.bytesToHex(bytes));\n\n// get some random bytes asynchronously\nforge.random.getBytes(32, function(err, bytes) {\n console.log(forge.util.bytesToHex(bytes));\n});\n\n// collect some entropy if you'd like\nforge.random.collect(someRandomBytes);\njQuery().mousemove(function(e) {\n forge.random.collectInt(e.clientX, 16);\n forge.random.collectInt(e.clientY, 16);\n});\n\n// specify a seed file for use with the synchronous API if you'd like\nforge.random.seedFileSync = function(needed) {\n // get 'needed' number of random bytes from somewhere\n return fetchedRandomBytes;\n};\n\n// specify a seed file for use with the asynchronous API if you'd like\nforge.random.seedFile = function(needed, callback) {\n // get the 'needed' number of random bytes from somewhere\n callback(null, fetchedRandomBytes);\n});\n\n// register the main thread to send entropy or a Web Worker to receive\n// entropy on demand from the main thread\nforge.random.registerWorker(self);\n\n// generate a new instance of a PRNG with no collected entropy\nvar myPrng = forge.random.createInstance();\n```\n\n<a name=\"task\" />\n\n### Tasks\n\nProvides queuing and synchronizing tasks in a web application.\n\n__Examples__\n\n```js\n// TODO\n```\n\n<a name=\"util\" />\n\n### Utilities\n\nProvides utility functions, including byte buffer support, base64,\nbytes to/from hex, zlib inflate/deflate, etc.\n\n__Examples__\n\n```js\n// encode/decode base64\nvar encoded = forge.util.encode64(str);\nvar str = forge.util.decode64(encoded);\n\n// encode/decode UTF-8\nvar encoded = forge.util.encodeUtf8(str);\nvar str = forge.util.decodeUtf8(encoded);\n\n// bytes to/from hex\nvar bytes = forge.util.hexToBytes(hex);\nvar hex = forge.util.bytesToHex(bytes);\n\n// create an empty byte buffer\nvar buffer = forge.util.createBuffer();\n// create a byte buffer from raw binary bytes\nvar buffer = forge.util.createBuffer(input, 'raw');\n// create a byte buffer from utf8 bytes\nvar buffer = forge.util.createBuffer(input, 'utf8');\n\n// get the length of the buffer in bytes\nbuffer.length();\n// put bytes into the buffer\nbuffer.putBytes(bytes);\n// put a 32-bit integer into the buffer\nbuffer.putInt32(10);\n// buffer to hex\nbuffer.toHex();\n// get a copy of the bytes in the buffer\nbytes.bytes(/* count */);\n// empty this buffer and get its contents\nbytes.getBytes(/* count */);\n\n// convert a forge buffer into a Node.js Buffer\n// make sure you specify the encoding as 'binary'\nvar forgeBuffer = forge.util.createBuffer();\nvar nodeBuffer = new Buffer(forgeBuffer.getBytes(), 'binary');\n\n// convert a Node.js Buffer into a forge buffer\n// make sure you specify the encoding as 'binary'\nvar nodeBuffer = new Buffer();\nvar forgeBuffer = forge.util.createBuffer(nodeBuffer.toString('binary'));\n\n// parse a URL\nvar parsed = forge.util.parseUrl('http://example.com/foo?bar=baz');\n// parsed.scheme, parsed.host, parsed.port, parsed.path, parsed.fullHost\n```\n\n<a name=\"log\" />\n\n### Logging\n\nProvides logging to a javascript console using various categories and\nlevels of verbosity.\n\n__Examples__\n\n```js\n// TODO\n```\n\n<a name=\"debug\" />\n\n### Debugging\n\nProvides storage of debugging information normally inaccessible in\nclosures for viewing/investigation.\n\n__Examples__\n\n```js\n// TODO\n```\n\n<a name=\"flash\" />\n\n### Flash Networking Support\n\nThe [flash README](./flash/README.md) provides details on rebuilding the\noptional Flash component used for networking. It also provides details on\nPolicy Server support.\n\nSecurity Considerations\n-----------------------\n\nWhen using this code please keep the following in mind:\n\n- Cryptography is hard. Please review and test this code before depending on it\n for critical functionality.\n- The nature of JavaScript is that execution of this code depends on trusting a\n very large set of JavaScript tools and systems. Consider runtime variations,\n runtime characteristics, runtime optimization, code optimization, code\n minimization, code obfuscation, bundling tools, possible bugs, the Forge code\n itself, and so on.\n- If using pre-built bundles from [Bower][] or similar be aware someone else\n ran the tools to create those files.\n- Use a secure transport channel such as [TLS][] to load scripts and consider\n using additional security mechanisms such as [Subresource Integrity][] script\n attributes.\n- Use \"native\" functionality where possible. This can be critical when dealing\n with performance and random number generation. Note that the JavaScript\n random number algorithms should perform well if given suitable entropy.\n- Understand possible attacks against cryptographic systems. For instance side\n channel and timing attacks may be possible due to the difficulty in\n implementing constant time algorithms in pure JavaScript.\n- Certain features in this library are less susceptible to attacks depending on\n usage. This primarily includes features that deal with data format\n manipulation or those that are not involved in communication.\n\nLibrary Background\n------------------\n\n* http://digitalbazaar.com/2010/07/20/javascript-tls-1/\n* http://digitalbazaar.com/2010/07/20/javascript-tls-2/\n\nContact\n-------\n\n* Code: https://github.com/digitalbazaar/forge\n* Bugs: https://github.com/digitalbazaar/forge/issues\n* Email: support@digitalbazaar.com\n* IRC: [#forgejs][] on [freenode][]\n\nDonations\n---------\n\nFinancial support is welcome and helps contribute to futher development:\n\n* For [PayPal][] please send to paypal@digitalbazaar.com.\n* Something else? Please contact support@digitalbazaar.com.\n\n[#forgejs]: https://webchat.freenode.net/?channels=#forgejs\n[0.6.x]: https://github.com/digitalbazaar/forge/tree/0.6.x\n[3DES]: http://en.wikipedia.org/wiki/Triple_DES\n[AES]: http://en.wikipedia.org/wiki/Advanced_Encryption_Standard\n[ASN.1]: http://en.wikipedia.org/wiki/ASN.1\n[Bower]: https://bower.io/\n[Browserify]: http://browserify.org/\n[CBC]: http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation\n[CFB]: http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation\n[CTR]: http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation\n[CommonJS]: https://en.wikipedia.org/wiki/CommonJS\n[DES]: http://en.wikipedia.org/wiki/Data_Encryption_Standard\n[ECB]: http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation\n[Fortuna]: http://en.wikipedia.org/wiki/Fortuna_(PRNG)\n[GCM]: http://en.wikipedia.org/wiki/GCM_mode\n[HMAC]: http://en.wikipedia.org/wiki/HMAC\n[JavaScript]: http://en.wikipedia.org/wiki/JavaScript\n[Karma]: https://karma-runner.github.io/\n[MD5]: http://en.wikipedia.org/wiki/MD5\n[Node.js]: http://nodejs.org/\n[OFB]: http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation\n[PKCS#10]: http://en.wikipedia.org/wiki/Certificate_signing_request\n[PKCS#12]: http://en.wikipedia.org/wiki/PKCS_%E2%99%AF12\n[PKCS#5]: http://en.wikipedia.org/wiki/PKCS\n[PKCS#7]: http://en.wikipedia.org/wiki/Cryptographic_Message_Syntax\n[PayPal]: https://www.paypal.com/\n[RC2]: http://en.wikipedia.org/wiki/RC2\n[SHA-1]: http://en.wikipedia.org/wiki/SHA-1\n[SHA-256]: http://en.wikipedia.org/wiki/SHA-256\n[SHA-384]: http://en.wikipedia.org/wiki/SHA-384\n[SHA-512]: http://en.wikipedia.org/wiki/SHA-512\n[Subresource Integrity]: https://www.w3.org/TR/SRI/\n[TLS]: http://en.wikipedia.org/wiki/Transport_Layer_Security\n[UMD]: https://github.com/umdjs/umd\n[X.509]: http://en.wikipedia.org/wiki/X.509\n[freenode]: https://freenode.net/\n[unpkg]: https://unpkg.com/\n[webpack]: https://webpack.github.io/\n[TweetNaCl]: https://github.com/dchest/tweetnacl-js\n# balanced-match\n\nMatch balanced string pairs, like `{` and `}` or `<b>` and `</b>`. Supports regular expressions as well!\n\n[](http://travis-ci.org/juliangruber/balanced-match)\n[](https://www.npmjs.org/package/balanced-match)\n\n[](https://ci.testling.com/juliangruber/balanced-match)\n\n## Example\n\nGet the first matching pair of braces:\n\n```js\nvar balanced = require('balanced-match');\n\nconsole.log(balanced('{', '}', 'pre{in{nested}}post'));\nconsole.log(balanced('{', '}', 'pre{first}between{second}post'));\nconsole.log(balanced(/\\s+\\{\\s+/, /\\s+\\}\\s+/, 'pre { in{nest} } post'));\n```\n\nThe matches are:\n\n```bash\n$ node example.js\n{ start: 3, end: 14, pre: 'pre', body: 'in{nested}', post: 'post' }\n{ start: 3,\n end: 9,\n pre: 'pre',\n body: 'first',\n post: 'between{second}post' }\n{ start: 3, end: 17, pre: 'pre', body: 'in{nest}', post: 'post' }\n```\n\n## API\n\n### var m = balanced(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\nobject with those keys:\n\n* **start** the index of the first match of `a`\n* **end** the index of the matching `b`\n* **pre** the preamble, `a` and `b` not included\n* **body** the match, `a` and `b` not included\n* **post** the postscript, `a` and `b` not included\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `['{', 'a', '']` and `{a}}` will match `['', 'a', '}']`.\n\n### var r = balanced.range(a, b, str)\n\nFor the first non-nested matching pair of `a` and `b` in `str`, return an\narray with indexes: `[ <a index>, <b index> ]`.\n\nIf there's no match, `undefined` will be returned.\n\nIf the `str` contains more `a` than `b` / there are unmatched pairs, the first match that was closed will be used. For example, `{{a}` will match `[ 1, 3 ]` and `{a}}` will match `[0, 2]`.\n\n## Installation\n\nWith [npm](https://npmjs.org) do:\n\n```bash\nnpm install balanced-match\n```\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n<h1 align=\"center\">connect-history-api-fallback</h1>\n<p align=\"center\">Middleware to proxy requests through a specified index page, useful for Single Page Applications that utilise the HTML5 History API.</p>\n\n[](https://travis-ci.org/bripkens/connect-history-api-fallback)\n[](https://david-dm.org/bripkens/connect-history-api-fallback/master)\n\n[](https://nodei.co/npm/connect-history-api-fallback/)\n\n<h2>Table of Contents</h2>\n\n<!-- TOC depthFrom:2 depthTo:6 withLinks:1 updateOnSave:1 orderedList:0 -->\n\n- [Introduction](#introduction)\n- [Usage](#usage)\n- [Options](#options)\n\t- [index](#index)\n\t- [rewrites](#rewrites)\n\t- [verbose](#verbose)\n\t- [htmlAcceptHeaders](#htmlacceptheaders)\n\t- [disableDotRule](#disabledotrule)\n\n<!-- /TOC -->\n\n## Introduction\n\nSingle Page Applications (SPA) typically only utilise one index file that is\naccessible by web browsers: usually `index.html`. Navigation in the application\nis then commonly handled using JavaScript with the help of the\n[HTML5 History API](http://www.w3.org/html/wg/drafts/html/master/single-page.html#the-history-interface).\nThis results in issues when the user hits the refresh button or is directly\naccessing a page other than the landing page, e.g. `/help` or `/help/online`\nas the web server bypasses the index file to locate the file at this location.\nAs your application is a SPA, the web server will fail trying to retrieve the file and return a *404 - Not Found*\nmessage to the user.\n\nThis tiny middleware addresses some of the issues. Specifically, it will change\nthe requested location to the index you specify (default being `/index.html`)\nwhenever there is a request which fulfills the following criteria:\n\n 1. The request is a GET request\n 2. which accepts `text/html`,\n 3. is not a direct file request, i.e. the requested path does not contain a\n `.` (DOT) character and\n 4. does not match a pattern provided in options.rewrites (see options below)\n\n## Usage\n\nThe middleware is available through NPM and can easily be added.\n\n```\nnpm install --save connect-history-api-fallback\n```\n\nImport the library\n\n```javascript\nvar history = require('connect-history-api-fallback');\n```\n\nNow you only need to add the middleware to your application like so\n\n```javascript\nvar connect = require('connect');\n\nvar app = connect()\n .use(history())\n .listen(3000);\n```\n\nOf course you can also use this piece of middleware with express:\n\n```javascript\nvar express = require('express');\n\nvar app = express();\napp.use(history());\n```\n\n## Options\nYou can optionally pass options to the library when obtaining the middleware\n\n```javascript\nvar middleware = history({});\n```\n\n### index\nOverride the index (default `/index.html`)\n\n```javascript\nhistory({\n index: '/default.html'\n});\n```\n\n### rewrites\nOverride the index when the request url matches a regex pattern. You can either rewrite to a static string or use a function to transform the incoming request.\n\nThe following will rewrite a request that matches the `/\\/soccer/` pattern to `/soccer.html`.\n```javascript\nhistory({\n rewrites: [\n { from: /\\/soccer/, to: '/soccer.html'}\n ]\n});\n```\n\nAlternatively functions can be used to have more control over the rewrite process. For instance, the following listing shows how requests to `/libs/jquery/jquery.1.12.0.min.js` and the like can be routed to `./bower_components/libs/jquery/jquery.1.12.0.min.js`. You can also make use of this if you have an API version in the URL path.\n```javascript\nhistory({\n rewrites: [\n {\n from: /^\\/libs\\/.*$/,\n to: function(context) {\n return '/bower_components' + context.parsedUrl.pathname;\n }\n }\n ]\n});\n```\n\nThe function will always be called with a context object that has the following properties:\n\n - **parsedUrl**: Information about the URL as provided by the [URL module's](https://nodejs.org/api/url.html#url_url_parse_urlstr_parsequerystring_slashesdenotehost) `url.parse`.\n - **match**: An Array of matched results as provided by `String.match(...)`.\n - **request**: The HTTP request object.\n\n### verbose\nThis middleware does not log any information by default. If you wish to activate logging, then you can do so via the `verbose` option or by specifying a logger function.\n\n```javascript\nhistory({\n verbose: true\n});\n```\n\nAlternatively use your own logger\n\n```javascript\nhistory({\n logger: console.log.bind(console)\n});\n```\n\n### htmlAcceptHeaders\nOverride the default `Accepts:` headers that are queried when matching HTML content requests (Default: `['text/html', '*/*']`).\n\n```javascript\nhistory({\n htmlAcceptHeaders: ['text/html', 'application/xhtml+xml']\n})\n```\n\n### disableDotRule\nDisables the dot rule mentioned above:\n\n> […] is not a direct file request, i.e. the requested path does not contain a `.` (DOT) character […]\n\n```javascript\nhistory({\n disableDotRule: true\n})\n```\nAn ini format parser and serializer for node.\n\nSections are treated as nested objects. Items before the first\nheading are saved on the object directly.\n\n## Usage\n\nConsider an ini-file `config.ini` that looks like this:\n\n ; this comment is being ignored\n scope = global\n\n [database]\n user = dbuser\n password = dbpassword\n database = use_this_database\n\n [paths.default]\n datadir = /var/lib/data\n array[] = first value\n array[] = second value\n array[] = third value\n\nYou can read, manipulate and write the ini-file like so:\n\n var fs = require('fs')\n , ini = require('ini')\n\n var config = ini.parse(fs.readFileSync('./config.ini', 'utf-8'))\n\n config.scope = 'local'\n config.database.database = 'use_another_database'\n config.paths.default.tmpdir = '/tmp'\n delete config.paths.default.datadir\n config.paths.default.array.push('fourth value')\n\n fs.writeFileSync('./config_modified.ini', ini.stringify(config, { section: 'section' }))\n\nThis will result in a file called `config_modified.ini` being written\nto the filesystem with the following content:\n\n [section]\n scope=local\n [section.database]\n user=dbuser\n password=dbpassword\n database=use_another_database\n [section.paths.default]\n tmpdir=/tmp\n array[]=first value\n array[]=second value\n array[]=third value\n array[]=fourth value\n\n## API\n\n### decode(inistring)\n\nDecode the ini-style formatted `inistring` into a nested object.\n\n### parse(inistring)\n\nAlias for `decode(inistring)`\n\n### encode(object, [options])\n\nEncode the object `object` into an ini-style formatted string. If the\noptional parameter `section` is given, then all top-level properties\nof the object are put into this section and the `section`-string is\nprepended to all sub-sections, see the usage example above.\n\nThe `options` object may contain the following:\n\n* `section` A string which will be the first `section` in the encoded\n ini data. Defaults to none.\n* `whitespace` Boolean to specify whether to put whitespace around the\n `=` character. By default, whitespace is omitted, to be friendly to\n some persnickety old parsers that don't tolerate it well. But some\n find that it's more human-readable and pretty with the whitespace.\n\nFor backwards compatibility reasons, if a `string` options is passed\nin, then it is assumed to be the `section` value.\n\n### stringify(object, [options])\n\nAlias for `encode(object, [options])`\n\n### safe(val)\n\nEscapes the string `val` such that it is safe to be used as a key or\nvalue in an ini-file. Basically escapes quotes. For example\n\n ini.safe('\"unsafe string\"')\n\nwould result in\n\n \"\\\"unsafe string\\\"\"\n\n### unsafe(val)\n\nUnescapes the string `val`\n# is-data-descriptor [](https://www.npmjs.com/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://npmjs.org/package/is-data-descriptor) [](https://travis-ci.org/jonschlinkert/is-data-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript data descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-data-descriptor\n```\n\n## Usage\n\n```js\nvar isDataDesc = require('is-data-descriptor');\n```\n\n## Examples\n\n`true` when the descriptor has valid properties with valid values.\n\n```js\n// `value` can be anything\nisDataDesc({value: 'foo'})\nisDataDesc({value: function() {}})\nisDataDesc({value: true})\n//=> true\n```\n\n`false` when not an object\n\n```js\nisDataDesc('a')\n//=> false\nisDataDesc(null)\n//=> false\nisDataDesc([])\n//=> false\n```\n\n`false` when the object has invalid properties\n\n```js\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', bar: 'baz'})\n//=> false\nisDataDesc({value: 'foo', get: function(){}})\n//=> false\nisDataDesc({get: function(){}, value: 'foo'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDataDesc({value: 'foo', enumerable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', configurable: 'foo'})\n//=> false\nisDataDesc({value: 'foo', writable: 'foo'})\n//=> false\n```\n\n## Valid properties\n\nThe only valid data descriptor properties are the following:\n\n* `configurable` (required)\n* `enumerable` (required)\n* `value` (optional)\n* `writable` (optional)\n\nTo be a valid data descriptor, either `value` or `writable` must be defined.\n\n**Invalid properties**\n\nA descriptor may have additional _invalid_ properties (an error will **not** be thrown).\n\n```js\nvar foo = {};\n\nObject.defineProperty(foo, 'bar', {\n enumerable: true,\n whatever: 'blah', // invalid, but doesn't cause an error\n get: function() {\n return 'baz';\n }\n});\n\nconsole.log(foo.bar);\n//=> 'baz'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 21 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# snapdragon-node [](https://www.npmjs.com/package/snapdragon-node) [](https://npmjs.org/package/snapdragon-node) [](https://npmjs.org/package/snapdragon-node) [](https://travis-ci.org/jonschlinkert/snapdragon-node)\n\n> Snapdragon utility for creating a new AST node in custom code, such as plugins.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save snapdragon-node\n```\n\n## Usage\n\nWith [snapdragon](https://github.com/jonschlinkert/snapdragon) v0.9.0 and higher you can use `this.node()` to create a new `Node`, whenever it makes sense.\n\n```js\nvar Node = require('snapdragon-node');\nvar Snapdragon = require('snapdragon');\nvar snapdragon = new Snapdragon();\n\n// example usage inside a parser visitor function\nsnapdragon.parser.set('foo', function() {\n // get the current \"start\" position\n var pos = this.position();\n\n // returns the match if regex matches the substring \n // at the current position on `parser.input`\n var match = this.match(/foo/);\n if (match) {\n // call \"pos\" on the node, to set the start and end \n // positions, and return the node to push it onto the AST\n // (snapdragon will push the node onto the correct\n // nodes array, based on the stack)\n return pos(new Node({type: 'bar', val: match[0]}));\n }\n});\n```\n\n## API\n\n### [Node](index.js#L22)\n\nCreate a new AST `Node` with the given `val` and `type`.\n\n**Params**\n\n* `val` **{String|Object}**: Pass a matched substring, or an object to merge onto the node.\n* `type` **{String}**: The node type to use when `val` is a string.\n* `returns` **{Object}**: node instance\n\n**Example**\n\n```js\nvar node = new Node('*', 'Star');\nvar node = new Node({type: 'star', val: '*'});\n```\n\n### [.isNode](index.js#L61)\n\nReturns true if the given value is a node.\n\n**Params**\n\n* `node` **{Object}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar Node = require('snapdragon-node');\nvar node = new Node({type: 'foo'});\nconsole.log(Node.isNode(node)); //=> true\nconsole.log(Node.isNode({})); //=> false\n```\n\n### [.define](index.js#L80)\n\nDefine a non-enumberable property on the node instance. Useful for adding properties that shouldn't be extended or visible during debugging.\n\n**Params**\n\n* `name` **{String}**\n* `val` **{any}**\n* `returns` **{Object}**: returns the node instance\n\n**Example**\n\n```js\nvar node = new Node();\nnode.define('foo', 'something non-enumerable');\n```\n\n### [.isEmpty](index.js#L100)\n\nReturns true if `node.val` is an empty string, or `node.nodes` does not contain any non-empty text nodes.\n\n**Params**\n\n* `fn` **{Function}**: (optional) Filter function that is called on `node` and/or child nodes. `isEmpty` will return false immediately when the filter function returns false on any nodes.\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar node = new Node({type: 'text'});\nnode.isEmpty(); //=> true\nnode.val = 'foo';\nnode.isEmpty(); //=> false\n```\n\n### [.push](index.js#L118)\n\nGiven node `foo` and node `bar`, push node `bar` onto `foo.nodes`, and set `foo` as `bar.parent`.\n\n**Params**\n\n* `node` **{Object}**\n* `returns` **{Number}**: Returns the length of `node.nodes`\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nfoo.push(bar);\n```\n\n### [.unshift](index.js#L140)\n\nGiven node `foo` and node `bar`, unshift node `bar` onto `foo.nodes`, and set `foo` as `bar.parent`.\n\n**Params**\n\n* `node` **{Object}**\n* `returns` **{Number}**: Returns the length of `node.nodes`\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nfoo.unshift(bar);\n```\n\n### [.pop](index.js#L167)\n\nPop a node from `node.nodes`.\n\n* `returns` **{Number}**: Returns the popped `node`\n\n**Example**\n\n```js\nvar node = new Node({type: 'foo'});\nnode.push(new Node({type: 'a'}));\nnode.push(new Node({type: 'b'}));\nnode.push(new Node({type: 'c'}));\nnode.push(new Node({type: 'd'}));\nconsole.log(node.nodes.length);\n//=> 4\nnode.pop();\nconsole.log(node.nodes.length);\n//=> 3\n```\n\n### [.shift](index.js#L190)\n\nShift a node from `node.nodes`.\n\n* `returns` **{Object}**: Returns the shifted `node`\n\n**Example**\n\n```js\nvar node = new Node({type: 'foo'});\nnode.push(new Node({type: 'a'}));\nnode.push(new Node({type: 'b'}));\nnode.push(new Node({type: 'c'}));\nnode.push(new Node({type: 'd'}));\nconsole.log(node.nodes.length);\n//=> 4\nnode.shift();\nconsole.log(node.nodes.length);\n//=> 3\n```\n\n### [.remove](index.js#L205)\n\nRemove `node` from `node.nodes`.\n\n**Params**\n\n* `node` **{Object}**\n* `returns` **{Object}**: Returns the removed node.\n\n**Example**\n\n```js\nnode.remove(childNode);\n```\n\n### [.find](index.js#L231)\n\nGet the first child node from `node.nodes` that matches the given `type`. If `type` is a number, the child node at that index is returned.\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Object}**: Returns a child node or undefined.\n\n**Example**\n\n```js\nvar child = node.find(1); //<= index of the node to get\nvar child = node.find('foo'); //<= node.type of a child node\nvar child = node.find(/^(foo|bar)$/); //<= regex to match node.type\nvar child = node.find(['foo', 'bar']); //<= array of node.type(s)\n```\n\n### [.isType](index.js#L249)\n\nReturn true if the node is the given `type`.\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar node = new Node({type: 'bar'});\ncosole.log(node.isType('foo')); // false\ncosole.log(node.isType(/^(foo|bar)$/)); // true\ncosole.log(node.isType(['foo', 'bar'])); // true\n```\n\n### [.hasType](index.js#L270)\n\nReturn true if the `node.nodes` has the given `type`.\n\n**Params**\n\n* `type` **{String}**\n* `returns` **{Boolean}**\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nfoo.push(bar);\n\ncosole.log(foo.hasType('qux')); // false\ncosole.log(foo.hasType(/^(qux|bar)$/)); // true\ncosole.log(foo.hasType(['qux', 'bar'])); // true\n```\n\n* `returns` **{Array}**\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nfoo.push(bar);\nfoo.push(baz);\n\nconsole.log(bar.siblings.length) // 2\nconsole.log(baz.siblings.length) // 2\n```\n\n* `returns` **{Number}**\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nvar qux = new Node({type: 'qux'});\nfoo.push(bar);\nfoo.push(baz);\nfoo.unshift(qux);\n\nconsole.log(bar.index) // 1\nconsole.log(baz.index) // 2\nconsole.log(qux.index) // 0\n```\n\n* `returns` **{Object}**\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nfoo.push(bar);\nfoo.push(baz);\n\nconsole.log(baz.prev.type) // 'bar'\n```\n\n* `returns` **{Object}**\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nfoo.push(bar);\nfoo.push(baz);\n\nconsole.log(bar.siblings.length) // 2\nconsole.log(baz.siblings.length) // 2\n```\n\n* `returns` **{Object}**: The first node, or undefiend\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nvar qux = new Node({type: 'qux'});\nfoo.push(bar);\nfoo.push(baz);\nfoo.push(qux);\n\nconsole.log(foo.first.type) // 'bar'\n```\n\n* `returns` **{Object}**: The last node, or undefiend\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nvar qux = new Node({type: 'qux'});\nfoo.push(bar);\nfoo.push(baz);\nfoo.push(qux);\n\nconsole.log(foo.last.type) // 'qux'\n```\n\n* `returns` **{Object}**: The last node, or undefiend\n\n**Example**\n\n```js\nvar foo = new Node({type: 'foo'});\nvar bar = new Node({type: 'bar'});\nvar baz = new Node({type: 'baz'});\nvar qux = new Node({type: 'qux'});\nfoo.push(bar);\nfoo.push(baz);\nfoo.push(qux);\n\nconsole.log(foo.last.type) // 'qux'\n```\n\n## Release history\n\nChangelog entries are classified using the following labels from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog):\n\n* `added`: for new features\n* `changed`: for changes in existing functionality\n* `deprecated`: for once-stable features removed in upcoming releases\n* `removed`: for deprecated features removed in this release\n* `fixed`: for any bug fixes\n\nCustom labels used in this changelog:\n\n* `dependencies`: bumps dependencies\n* `housekeeping`: code re-organization, minor edits, or other changes that don't fit in one of the other categories.\n\n### [2.0.0] - 2017-05-01\n\n**Changed**\n\n* `.unshiftNode` was renamed to [.unshift](#unshift)\n* `.pushNode` was renamed to [.push](#push)\n* `.getNode` was renamed to [.find](#find)\n\n**Added**\n\n* [.isNode](#isNode)\n* [.isEmpty](#isEmpty)\n* [.pop](#pop)\n* [.shift](#shift)\n* [.remove](#remove)\n\n### [0.1.0]\n\nFirst release.\n\n## About\n\n### Related projects\n\n* [breakdance](https://www.npmjs.com/package/breakdance): Breakdance is a node.js library for converting HTML to markdown. Highly pluggable, flexible and easy… [more](http://breakdance.io) | [homepage](http://breakdance.io \"Breakdance is a node.js library for converting HTML to markdown. Highly pluggable, flexible and easy to use. It's time for your markup to get down.\")\n* [snapdragon-capture](https://www.npmjs.com/package/snapdragon-capture): Snapdragon plugin that adds a capture method to the parser instance. | [homepage](https://github.com/jonschlinkert/snapdragon-capture \"Snapdragon plugin that adds a capture method to the parser instance.\")\n* [snapdragon-cheerio](https://www.npmjs.com/package/snapdragon-cheerio): Snapdragon plugin for converting a cheerio AST to a snapdragon AST. | [homepage](https://github.com/jonschlinkert/snapdragon-cheerio \"Snapdragon plugin for converting a cheerio AST to a snapdragon AST.\")\n* [snapdragon-util](https://www.npmjs.com/package/snapdragon-util): Utilities for the snapdragon parser/compiler. | [homepage](https://github.com/jonschlinkert/snapdragon-util \"Utilities for the snapdragon parser/compiler.\")\n* [snapdragon](https://www.npmjs.com/package/snapdragon): Easy-to-use plugin system for creating powerful, fast and versatile parsers and compilers, with built-in source-map… [more](https://github.com/jonschlinkert/snapdragon) | [homepage](https://github.com/jonschlinkert/snapdragon \"Easy-to-use plugin system for creating powerful, fast and versatile parsers and compilers, with built-in source-map support.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\nPlease read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 25, 2017._\n# regjsgen [](https://travis-ci.org/bnjmnt4n/regjsgen) [](https://codecov.io/gh/bnjmnt4n/regjsgen)\n\nGenerate regular expressions from [regjsparser](https://github.com/jviereck/regjsparser)’s AST.\n\n## Installation\n\n```bash\nnpm install --save regjsgen\n```\n\n## API\n\n### `regjsgen.generate(ast)`\n\nThis function accepts an abstract syntax tree representing a regular expression, and returns the generated regular expression string.\n\n```js\nvar regjsparser = require('regjsparser');\nvar regjsgen = require('regjsgen');\n\n// Generate an AST with `regjsparser`.\nvar ast = regjsparser.parse(regex);\n\n// Modify AST\n// …\n\n// Generate `RegExp` string with `regjsgen`.\nregex = regjsgen.generate(ast);\n```\n\n## Support\n\nTested in Node.js 0.10, 0.12, 4, 6 and 8.\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)\n[](#sponsors)\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nA tiny JavaScript debugging utility modelled after Node.js core's debugging\ntechnique. Works in Node.js and web browsers.\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample [_app.js_](./examples/node/app.js):\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %o', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample [_worker.js_](./examples/node/worker.js):\n\n```js\nvar a = require('debug')('worker:a')\n , b = require('debug')('worker:b');\n\nfunction work() {\n a('doing lots of uninteresting work');\n setTimeout(work, Math.random() * 1000);\n}\n\nwork();\n\nfunction workb() {\n b('doing some work');\n setTimeout(workb, Math.random() * 2000);\n}\n\nworkb();\n```\n\nThe `DEBUG` environment variable is then used to enable these based on space or\ncomma-delimited names.\n\nHere are some examples:\n\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 04 pm\" src=\"https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 38 pm\" src=\"https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 25 pm\" src=\"https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png\">\n\n#### Windows command prompt notes\n\n##### CMD\n\nOn Windows the environment variable is set using the `set` command.\n\n```cmd\nset DEBUG=*,-not_this\n```\n\nExample:\n\n```cmd\nset DEBUG=* & node app.js\n```\n\n##### PowerShell (VS Code default)\n\nPowerShell uses different syntax to set environment variables.\n\n```cmd\n$env:DEBUG = \"*,-not_this\"\n```\n\nExample:\n\n```cmd\n$env:DEBUG='app';node app.js\n```\n\nThen, run the program to be debugged as usual.\n\nnpm script example:\n```js\n \"windowsDebug\": \"@powershell -Command $env:DEBUG='*';node app.js\",\n```\n\n## Namespace Colors\n\nEvery debug instance has a color generated for it based on its namespace name.\nThis helps when visually parsing the debug output to identify which debug instance\na debug line belongs to.\n\n#### Node.js\n\nIn Node.js, colors are enabled when stderr is a TTY. You also _should_ install\nthe [`supports-color`](https://npmjs.org/supports-color) module alongside debug,\notherwise debug will only use a small handful of basic colors.\n\n<img width=\"521\" src=\"https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png\">\n\n#### Web Browser\n\nColors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\noption. These are WebKit web inspectors, Firefox ([since version\n31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\nand the Firebug plugin for Firefox (any version).\n\n<img width=\"524\" src=\"https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png\">\n\n## Millisecond diff\n\nWhen actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nWhen stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png\">\n\n## Conventions\n\nIf you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\". If you append a \"*\" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.\n\n## Wildcards\n\nThe `*` character may be used as a wildcard. Suppose for example your library has\ndebuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\",\ninstead of listing all three with\n`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do\n`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\nYou can also exclude specific debuggers by prefixing them with a \"-\" character.\nFor example, `DEBUG=*,-connect:*` would include all debuggers except those\nstarting with \"connect:\".\n\n## Environment Variables\n\nWhen running through Node.js, you can set a few environment variables that will\nchange the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n__Note:__ The environment variables beginning with `DEBUG_` end up being\nconverted into an Options object that gets used with `%o`/`%O` formatters.\nSee the Node.js documentation for\n[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\nfor the complete list.\n\n## Formatters\n\nDebug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.\nBelow are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\nYou can add custom formatters by extending the `debug.formatters` object.\nFor example, if you wanted to add support for rendering a Buffer as hex with\n`%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser Support\n\nYou can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\nor just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\nif you don't want to build it yourself.\n\nDebug's enable state is currently persisted by `localStorage`.\nConsider the situation shown below where you have `worker:a` and `worker:b`,\nand wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample [_stdout.js_](./examples/node/stdout.js):\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Extend\nYou can simply extend debugger \n```js\nconst log = require('debug')('auth');\n\n//creates new debug instance with extended namespace\nconst logSign = log.extend('sign');\nconst logLogin = log.extend('login');\n\nlog('hello'); // auth hello\nlogSign('hello'); //auth:sign hello\nlogLogin('hello'); //auth:login hello\n```\n\n## Set dynamically\n\nYou can also enable debug dynamically by calling the `enable()` method :\n\n```js\nlet debug = require('debug');\n\nconsole.log(1, debug.enabled('test'));\n\ndebug.enable('test');\nconsole.log(2, debug.enabled('test'));\n\ndebug.disable();\nconsole.log(3, debug.enabled('test'));\n\n```\n\nprint : \n```\n1 false\n2 true\n3 false\n```\n\nUsage : \n`enable(namespaces)` \n`namespaces` can include modes separated by a colon and wildcards.\n \nNote that calling `enable()` completely overrides previously set DEBUG variable : \n\n```\n$ DEBUG=foo node -e 'var dbg = require(\"debug\"); dbg.enable(\"bar\"); console.log(dbg.enabled(\"foo\"))'\n=> false\n```\n\n`disable()`\n\nWill disable all namespaces. The functions returns the namespaces currently\nenabled (and skipped). This can be useful if you want to disable debugging\ntemporarily without knowing what was enabled to begin with.\n\nFor example:\n\n```js\nlet debug = require('debug');\ndebug.enable('foo:*,-foo:bar');\nlet namespaces = debug.disable();\ndebug.enable(namespaces);\n```\n\nNote: There is no guarantee that the string will be identical to the initial\nenable string, but semantically they will be identical.\n\n## Checking whether a debug target is enabled\n\nAfter you've created a debug instance, you can determine whether or not it is\nenabled by checking the `enabled` property:\n\n```javascript\nconst debug = require('debug')('http');\n\nif (debug.enabled) {\n // do stuff...\n}\n```\n\nYou can also manually toggle this property to force the debug instance to be\nenabled or disabled.\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n\n## Backers\n\nSupport us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]\n\n<a href=\"https://opencollective.com/debug/backer/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/5/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/6/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/7/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/8/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/9/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/10/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/10/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/11/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/11/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/12/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/12/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/13/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/13/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/14/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/14/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/15/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/15/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/16/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/16/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/17/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/17/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/18/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/29/avatar.svg\"></a>\n\n## Sponsors\n\nBecome a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]\n\n<a href=\"https://opencollective.com/debug/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/5/avatar.svg\"></a>\n<a 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target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/12/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/13/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/13/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/14/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/14/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/15/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/15/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/16/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/16/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/17/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/17/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/18/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n# is-accessor-descriptor [](https://www.npmjs.com/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-accessor-descriptor\n```\n\n## Usage\n\n```js\nvar isAccessor = require('is-accessor-descriptor');\n\nisAccessor({get: function() {}});\n//=> true\n```\n\nYou may also pass an object and property name to check if the property is an accessor:\n\n```js\nisAccessor(foo, 'bar');\n```\n\n## Examples\n\n`false` when not an object\n\n```js\nisAccessor('a')\nisAccessor(null)\nisAccessor([])\n//=> false\n```\n\n`true` when the object has valid properties\n\nand the properties all have the correct JavaScript types:\n\n```js\nisAccessor({get: noop, set: noop})\nisAccessor({get: noop})\nisAccessor({set: noop})\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisAccessor({get: noop, set: noop, bar: 'baz'})\nisAccessor({get: noop, writable: true})\nisAccessor({get: noop, value: true})\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisAccessor({get: noop, set: 'baz'})\nisAccessor({get: 'foo', set: noop})\nisAccessor({get: 'foo', bar: 'baz'})\nisAccessor({get: 'foo', set: 'baz'})\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisAccessor({get: noop, set: noop, enumerable: 'foo'})\nisAccessor({set: noop, configurable: 'foo'})\nisAccessor({get: noop, configurable: 'foo'})\n//=> false\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 22 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 2 | [realityking](https://github.com/realityking) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._\n# pump\n\npump is a small node module that pipes streams together and destroys all of them if one of them closes.\n\n```\nnpm install pump\n```\n\n[](http://travis-ci.org/mafintosh/pump)\n\n## What problem does it solve?\n\nWhen using standard `source.pipe(dest)` source will _not_ be destroyed if dest emits close or an error.\nYou are also not able to provide a callback to tell when then pipe has finished.\n\npump does these two things for you\n\n## Usage\n\nSimply pass the streams you want to pipe together to pump and add an optional callback\n\n``` js\nvar pump = require('pump')\nvar fs = require('fs')\n\nvar source = fs.createReadStream('/dev/random')\nvar dest = fs.createWriteStream('/dev/null')\n\npump(source, dest, function(err) {\n console.log('pipe finished', err)\n})\n\nsetTimeout(function() {\n dest.destroy() // when dest is closed pump will destroy source\n}, 1000)\n```\n\nYou can use pump to pipe more than two streams together as well\n\n``` js\nvar transform = someTransformStream()\n\npump(source, transform, anotherTransform, dest, function(err) {\n console.log('pipe finished', err)\n})\n```\n\nIf `source`, `transform`, `anotherTransform` or `dest` closes all of them will be destroyed.\n\n## License\n\nMIT\n\n## Related\n\n`pump` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.\nBrowser-friendly inheritance fully compatible with standard node.js\n[inherits](http://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor).\n\nThis package exports standard `inherits` from node.js `util` module in\nnode environment, but also provides alternative browser-friendly\nimplementation through [browser\nfield](https://gist.github.com/shtylman/4339901). Alternative\nimplementation is a literal copy of standard one located in standalone\nmodule to avoid requiring of `util`. It also has a shim for old\nbrowsers with no `Object.create` support.\n\nWhile keeping you sure you are using standard `inherits`\nimplementation in node.js environment, it allows bundlers such as\n[browserify](https://github.com/substack/node-browserify) to not\ninclude full `util` package to your client code if all you need is\njust `inherits` function. It worth, because browser shim for `util`\npackage is large and `inherits` is often the single function you need\nfrom it.\n\nIt's recommended to use this package instead of\n`require('util').inherits` for any code that has chances to be used\nnot only in node.js but in browser too.\n\n## usage\n\n```js\nvar inherits = require('inherits');\n// then use exactly as the standard one\n```\n\n## note on version ~1.0\n\nVersion ~1.0 had completely different motivation and is not compatible\nneither with 2.0 nor with standard node.js `inherits`.\n\nIf you are using version ~1.0 and planning to switch to ~2.0, be\ncareful:\n\n* new version uses `super_` instead of `super` for referencing\n superclass\n* new version overwrites current prototype while old one preserves any\n existing fields on it\n# lru cache\n\nA cache object that deletes the least-recently-used items.\n\n[](https://travis-ci.org/isaacs/node-lru-cache) [](https://coveralls.io/github/isaacs/node-lru-cache)\n\n## Installation:\n\n```javascript\nnpm install lru-cache --save\n```\n\n## Usage:\n\n```javascript\nvar LRU = require(\"lru-cache\")\n , options = { max: 500\n , length: function (n, key) { return n * 2 + key.length }\n , dispose: function (key, n) { n.close() }\n , maxAge: 1000 * 60 * 60 }\n , cache = LRU(options)\n , otherCache = LRU(50) // sets just the max size\n\ncache.set(\"key\", \"value\")\ncache.get(\"key\") // \"value\"\n\n// non-string keys ARE fully supported\n// but note that it must be THE SAME object, not\n// just a JSON-equivalent object.\nvar someObject = { a: 1 }\ncache.set(someObject, 'a value')\n// Object keys are not toString()-ed\ncache.set('[object Object]', 'a different value')\nassert.equal(cache.get(someObject), 'a value')\n// A similar object with same keys/values won't work,\n// because it's a different object identity\nassert.equal(cache.get({ a: 1 }), undefined)\n\ncache.reset() // empty the cache\n```\n\nIf you put more stuff in it, then items will fall out.\n\nIf you try to put an oversized thing in it, then it'll fall out right\naway.\n\n## Options\n\n* `max` The maximum size of the cache, checked by applying the length\n function to all values in the cache. Not setting this is kind of\n silly, since that's the whole purpose of this lib, but it defaults\n to `Infinity`.\n* `maxAge` Maximum age in ms. Items are not pro-actively pruned out\n as they age, but if you try to get an item that is too old, it'll\n drop it and return undefined instead of giving it to you.\n* `length` Function that is used to calculate the length of stored\n items. If you're storing strings or buffers, then you probably want\n to do something like `function(n, key){return n.length}`. The default is\n `function(){return 1}`, which is fine if you want to store `max`\n like-sized things. The item is passed as the first argument, and\n the key is passed as the second argumnet.\n* `dispose` Function that is called on items when they are dropped\n from the cache. This can be handy if you want to close file\n descriptors or do other cleanup tasks when items are no longer\n accessible. Called with `key, value`. It's called *before*\n actually removing the item from the internal cache, so if you want\n to immediately put it back in, you'll have to do that in a\n `nextTick` or `setTimeout` callback or it won't do anything.\n* `stale` By default, if you set a `maxAge`, it'll only actually pull\n stale items out of the cache when you `get(key)`. (That is, it's\n not pre-emptively doing a `setTimeout` or anything.) If you set\n `stale:true`, it'll return the stale value before deleting it. If\n you don't set this, then it'll return `undefined` when you try to\n get a stale entry, as if it had already been deleted.\n* `noDisposeOnSet` By default, if you set a `dispose()` method, then\n it'll be called whenever a `set()` operation overwrites an existing\n key. If you set this option, `dispose()` will only be called when a\n key falls out of the cache, not when it is overwritten.\n\n## API\n\n* `set(key, value, maxAge)`\n* `get(key) => value`\n\n Both of these will update the \"recently used\"-ness of the key.\n They do what you think. `maxAge` is optional and overrides the\n cache `maxAge` option if provided.\n\n If the key is not found, `get()` will return `undefined`.\n\n The key and val can be any value.\n\n* `peek(key)`\n\n Returns the key value (or `undefined` if not found) without\n updating the \"recently used\"-ness of the key.\n\n (If you find yourself using this a lot, you *might* be using the\n wrong sort of data structure, but there are some use cases where\n it's handy.)\n\n* `del(key)`\n\n Deletes a key out of the cache.\n\n* `reset()`\n\n Clear the cache entirely, throwing away all values.\n\n* `has(key)`\n\n Check if a key is in the cache, without updating the recent-ness\n or deleting it for being stale.\n\n* `forEach(function(value,key,cache), [thisp])`\n\n Just like `Array.prototype.forEach`. Iterates over all the keys\n in the cache, in order of recent-ness. (Ie, more recently used\n items are iterated over first.)\n\n* `rforEach(function(value,key,cache), [thisp])`\n\n The same as `cache.forEach(...)` but items are iterated over in\n reverse order. (ie, less recently used items are iterated over\n first.)\n\n* `keys()`\n\n Return an array of the keys in the cache.\n\n* `values()`\n\n Return an array of the values in the cache.\n\n* `length`\n\n Return total length of objects in cache taking into account\n `length` options function.\n\n* `itemCount`\n\n Return total quantity of objects currently in cache. Note, that\n `stale` (see options) items are returned as part of this item\n count.\n\n* `dump()`\n\n Return an array of the cache entries ready for serialization and usage\n with 'destinationCache.load(arr)`.\n\n* `load(cacheEntriesArray)`\n\n Loads another cache entries array, obtained with `sourceCache.dump()`,\n into the cache. The destination cache is reset before loading new entries\n\n* `prune()`\n\n Manually iterates over the entire cache proactively pruning old entries\n# split-string [](https://www.npmjs.com/package/split-string) [](https://npmjs.org/package/split-string) [](https://npmjs.org/package/split-string) [](https://travis-ci.org/jonschlinkert/split-string)\n\n> Split a string on a character except when the character is escaped.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save split-string\n```\n\n<!-- section: Why use this? -->\n\n<details>\n<summary><strong>Why use this?</strong></summary>\n\n<br>\n\nAlthough it's easy to split on a string:\n\n```js\nconsole.log('a.b.c'.split('.'));\n//=> ['a', 'b', 'c']\n```\n\nIt's more challenging to split a string whilst respecting escaped or quoted characters.\n\n**Bad**\n\n```js\nconsole.log('a\\\\.b.c'.split('.'));\n//=> ['a\\\\', 'b', 'c']\n\nconsole.log('\"a.b.c\".d'.split('.'));\n//=> ['\"a', 'b', 'c\"', 'd']\n```\n\n**Good**\n\n```js\nvar split = require('split-string');\nconsole.log(split('a\\\\.b.c'));\n//=> ['a.b', 'c']\n\nconsole.log(split('\"a.b.c\".d'));\n//=> ['a.b.c', 'd']\n```\n\nSee the [options](#options) to learn how to choose the separator or retain quotes or escaping.\n\n<br>\n\n</details>\n\n## Usage\n\n```js\nvar split = require('split-string');\n\nsplit('a.b.c');\n//=> ['a', 'b', 'c']\n\n// respects escaped characters\nsplit('a.b.c\\\\.d');\n//=> ['a', 'b', 'c.d']\n\n// respects double-quoted strings\nsplit('a.\"b.c.d\".e');\n//=> ['a', 'b.c.d', 'e']\n```\n\n**Brackets**\n\nAlso respects brackets [unless disabled](#optionsbrackets):\n\n```js\nsplit('a (b c d) e', ' ');\n//=> ['a', '(b c d)', 'e']\n```\n\n## Options\n\n### options.brackets\n\n**Type**: `object|boolean`\n\n**Default**: `undefined`\n\n**Description**\n\nIf enabled, split-string will not split inside brackets. The following brackets types are supported when `options.brackets` is `true`,\n\n```js\n{\n '<': '>',\n '(': ')',\n '[': ']',\n '{': '}'\n}\n```\n\nOr, if object of brackets must be passed, each property on the object must be a bracket type, where the property key is the opening delimiter and property value is the closing delimiter.\n\n**Examples**\n\n```js\n// no bracket support by default\nsplit('a.{b.c}');\n//=> [ 'a', '{b', 'c}' ]\n\n// support all basic bracket types: \"<>{}[]()\"\nsplit('a.{b.c}', {brackets: true});\n//=> [ 'a', '{b.c}' ]\n\n// also supports nested brackets \nsplit('a.{b.{c.d}.e}.f', {brackets: true});\n//=> [ 'a', '{b.{c.d}.e}', 'f' ]\n\n// support only the specified brackets\nsplit('[a.b].(c.d)', {brackets: {'[': ']'}});\n//=> [ '[a.b]', '(c', 'd)' ]\n```\n\n### options.sep\n\n**Type**: `string`\n\n**Default**: `.`\n\nThe separator/character to split on.\n\n**Example**\n\n```js\nsplit('a.b,c', {sep: ','});\n//=> ['a.b', 'c']\n\n// you can also pass the separator as string as the last argument\nsplit('a.b,c', ',');\n//=> ['a.b', 'c']\n```\n\n### options.keepEscaping\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nKeep backslashes in the result.\n\n**Example**\n\n```js\nsplit('a.b\\\\.c');\n//=> ['a', 'b.c']\n\nsplit('a.b.\\\\c', {keepEscaping: true});\n//=> ['a', 'b\\.c']\n```\n\n### options.keepQuotes\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nKeep single- or double-quotes in the result.\n\n**Example**\n\n```js\nsplit('a.\"b.c.d\".e');\n//=> ['a', 'b.c.d', 'e']\n\nsplit('a.\"b.c.d\".e', {keepQuotes: true});\n//=> ['a', '\"b.c.d\"', 'e']\n\nsplit('a.\\'b.c.d\\'.e', {keepQuotes: true});\n//=> ['a', '\\'b.c.d\\'', 'e']\n```\n\n### options.keepDoubleQuotes\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nKeep double-quotes in the result.\n\n**Example**\n\n```js\nsplit('a.\"b.c.d\".e');\n//=> ['a', 'b.c.d', 'e']\n\nsplit('a.\"b.c.d\".e', {keepDoubleQuotes: true});\n//=> ['a', '\"b.c.d\"', 'e']\n```\n\n### options.keepSingleQuotes\n\n**Type**: `boolean`\n\n**Default**: `undefined`\n\nKeep single-quotes in the result.\n\n**Example**\n\n```js\nsplit('a.\\'b.c.d\\'.e');\n//=> ['a', 'b.c.d', 'e']\n\nsplit('a.\\'b.c.d\\'.e', {keepSingleQuotes: true});\n//=> ['a', '\\'b.c.d\\'', 'e']\n```\n\n## Customizer\n\n**Type**: `function`\n\n**Default**: `undefined`\n\nPass a function as the last argument to customize how tokens are added to the array.\n\n**Example**\n\n```js\nvar arr = split('a.b', function(tok) {\n if (tok.arr[tok.arr.length - 1] === 'a') {\n tok.split = false;\n }\n});\nconsole.log(arr);\n//=> ['a.b']\n```\n\n**Properties**\n\nThe `tok` object has the following properties:\n\n* `tok.val` (string) The current value about to be pushed onto the result array\n* `tok.idx` (number) the current index in the string\n* `tok.str` (string) the entire string\n* `tok.arr` (array) the result array\n\n## Release history\n\n### v3.0.0 - 2017-06-17\n\n**Added**\n\n* adds support for brackets\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [deromanize](https://www.npmjs.com/package/deromanize): Convert roman numerals to arabic numbers (useful for books, outlines, documentation, slide decks, etc) | [homepage](https://github.com/jonschlinkert/deromanize \"Convert roman numerals to arabic numbers (useful for books, outlines, documentation, slide decks, etc)\")\n* [randomatic](https://www.npmjs.com/package/randomatic): Generate randomized strings of a specified length using simple character sequences. The original generate-password. | [homepage](https://github.com/jonschlinkert/randomatic \"Generate randomized strings of a specified length using simple character sequences. The original generate-password.\")\n* [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string \"Repeat the given string n times. Fastest implementation for repeating a string.\")\n* [romanize](https://www.npmjs.com/package/romanize): Convert numbers to roman numerals (useful for books, outlines, documentation, slide decks, etc) | [homepage](https://github.com/jonschlinkert/romanize \"Convert numbers to roman numerals (useful for books, outlines, documentation, slide decks, etc)\")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 28 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 9 | [doowb](https://github.com/doowb) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 19, 2017._\n# dns-txt\n\nEncode or decode the RDATA field in multicast DNS TXT records. For use\nwith DNS-Based Service Discovery. For details see [RFC\n6763](https://tools.ietf.org/html/rfc6763).\n\n[](https://travis-ci.org/watson/dns-txt)\n[](https://github.com/feross/standard)\n[](https://github.com/mafintosh/abstract-encoding)\n\n## Installation\n\n```\nnpm install dns-txt\n```\n\n## Usage\n\n```js\nvar txt = require('dns-txt')()\n\nvar obj = {\n foo: 1,\n bar: 2\n}\n\nvar enc = txt.encode(obj) // <Buffer 05 66 6f 6f 3d 31 05 62 61 72 3d 32>\n\ntxt.decode(enc) // { foo: '1', bar: '2' }\n```\n\n## API\n\nThe encoder and decoder conforms to [RFC 6763](https://tools.ietf.org/html/rfc6763).\n\n### Initialize\n\nThe module exposes a constructor function which can be called with an\noptional options object:\n\n```js\nvar txt = require('dns-txt')({ binary: true })\n```\n\nThe options are:\n\n- `binary` - If set to `true` all values will be returned as `Buffer`\n objects. The default behavior is to turn all values into strings. But\n according to the RFC the values can be any binary data. If you expect\n binary data, use this option.\n\n#### `txt.encode(obj, [buffer], [offset])`\n\nTakes a key/value object and returns a buffer with the encoded TXT\nrecord. If a buffer is passed as the second argument the object should\nbe encoded into that buffer. Otherwise a new buffer should be allocated\nIf an offset is passed as the third argument the object should be\nencoded at that byte offset. The byte offset defaults to `0`.\n\nThis module does not actively validate the key/value pairs, but keep the\nfollowing in rules in mind:\n\n- To be RFC compliant, each key should conform with the rules as\n specified in [section\n 6.4](https://tools.ietf.org/html/rfc6763#section-6.4).\n\n- To be RFC compliant, each value should conform with the rules as\n specified in [section\n 6.5](https://tools.ietf.org/html/rfc6763#section-6.5).\n\nAfter encoding `txt.encode.bytes` is set to the amount of bytes used to\nencode the object.\n\n#### `txt.decode(buffer, [offset], [length])`\n\nTakes a buffer and returns a decoded key/value object. If an offset is\npassed as the second argument the object should be decoded from that\nbyte offset. The byte offset defaults to `0`. Note that all keys will be\nlowercased and all values will be Buffer objects.\n\nAfter decoding `txt.decode.bytes` is set to the amount of bytes used to\ndecode the object.\n\n#### `txt.encodingLength(obj)`\n\nTakes a single key/value object and returns the number of bytes that the given\nobject would require if encoded.\n\n## License\n\nMIT\n# util.promisify\nPolyfill for util.promisify in node versions < v8\n\nnode v8.0.0 added support for a built-in `util.promisify`: https://github.com/nodejs/node/pull/12442/\n\nThis package provides the built-in `util.promisify` in node v8.0.0 and later, and a replacement in other environments.\n\nNote: this package requires a native ES5 environment, and for `Promise` to be globally available. It will throw upon requiring it if these are not present.\nIf you want to write an option parser, and have it be good, there are\ntwo ways to do it. The Right Way, and the Wrong Way.\n\nThe Wrong Way is to sit down and write an option parser. We've all done\nthat.\n\nThe Right Way is to write some complex configurable program with so many\noptions that you hit the limit of your frustration just trying to\nmanage them all, and defer it with duct-tape solutions until you see\nexactly to the core of the problem, and finally snap and write an\nawesome option parser.\n\nIf you want to write an option parser, don't write an option parser.\nWrite a package manager, or a source control system, or a service\nrestarter, or an operating system. You probably won't end up with a\ngood one of those, but if you don't give up, and you are relentless and\ndiligent enough in your procrastination, you may just end up with a very\nnice option parser.\n\n## USAGE\n\n```javascript\n// my-program.js\nvar nopt = require(\"nopt\")\n , Stream = require(\"stream\").Stream\n , path = require(\"path\")\n , knownOpts = { \"foo\" : [String, null]\n , \"bar\" : [Stream, Number]\n , \"baz\" : path\n , \"bloo\" : [ \"big\", \"medium\", \"small\" ]\n , \"flag\" : Boolean\n , \"pick\" : Boolean\n , \"many1\" : [String, Array]\n , \"many2\" : [path, Array]\n }\n , shortHands = { \"foofoo\" : [\"--foo\", \"Mr. Foo\"]\n , \"b7\" : [\"--bar\", \"7\"]\n , \"m\" : [\"--bloo\", \"medium\"]\n , \"p\" : [\"--pick\"]\n , \"f\" : [\"--flag\"]\n }\n // everything is optional.\n // knownOpts and shorthands default to {}\n // arg list defaults to process.argv\n // slice defaults to 2\n , parsed = nopt(knownOpts, shortHands, process.argv, 2)\nconsole.log(parsed)\n```\n\nThis would give you support for any of the following:\n\n```console\n$ node my-program.js --foo \"blerp\" --no-flag\n{ \"foo\" : \"blerp\", \"flag\" : false }\n\n$ node my-program.js ---bar 7 --foo \"Mr. Hand\" --flag\n{ bar: 7, foo: \"Mr. Hand\", flag: true }\n\n$ node my-program.js --foo \"blerp\" -f -----p\n{ foo: \"blerp\", flag: true, pick: true }\n\n$ node my-program.js -fp --foofoo\n{ foo: \"Mr. Foo\", flag: true, pick: true }\n\n$ node my-program.js --foofoo -- -fp # -- stops the flag parsing.\n{ foo: \"Mr. Foo\", argv: { remain: [\"-fp\"] } }\n\n$ node my-program.js --blatzk -fp # unknown opts are ok.\n{ blatzk: true, flag: true, pick: true }\n\n$ node my-program.js --blatzk=1000 -fp # but you need to use = if they have a value\n{ blatzk: 1000, flag: true, pick: true }\n\n$ node my-program.js --no-blatzk -fp # unless they start with \"no-\"\n{ blatzk: false, flag: true, pick: true }\n\n$ node my-program.js --baz b/a/z # known paths are resolved.\n{ baz: \"/Users/isaacs/b/a/z\" }\n\n# if Array is one of the types, then it can take many\n# values, and will always be an array. The other types provided\n# specify what types are allowed in the list.\n\n$ node my-program.js --many1 5 --many1 null --many1 foo\n{ many1: [\"5\", \"null\", \"foo\"] }\n\n$ node my-program.js --many2 foo --many2 bar\n{ many2: [\"/path/to/foo\", \"path/to/bar\"] }\n```\n\nRead the tests at the bottom of `lib/nopt.js` for more examples of\nwhat this puppy can do.\n\n## Types\n\nThe following types are supported, and defined on `nopt.typeDefs`\n\n* String: A normal string. No parsing is done.\n* path: A file system path. Gets resolved against cwd if not absolute.\n* url: A url. If it doesn't parse, it isn't accepted.\n* Number: Must be numeric.\n* Date: Must parse as a date. If it does, and `Date` is one of the options,\n then it will return a Date object, not a string.\n* Boolean: Must be either `true` or `false`. If an option is a boolean,\n then it does not need a value, and its presence will imply `true` as\n the value. To negate boolean flags, do `--no-whatever` or `--whatever\n false`\n* NaN: Means that the option is strictly not allowed. Any value will\n fail.\n* Stream: An object matching the \"Stream\" class in node. Valuable\n for use when validating programmatically. (npm uses this to let you\n supply any WriteStream on the `outfd` and `logfd` config options.)\n* Array: If `Array` is specified as one of the types, then the value\n will be parsed as a list of options. This means that multiple values\n can be specified, and that the value will always be an array.\n\nIf a type is an array of values not on this list, then those are\nconsidered valid values. For instance, in the example above, the\n`--bloo` option can only be one of `\"big\"`, `\"medium\"`, or `\"small\"`,\nand any other value will be rejected.\n\nWhen parsing unknown fields, `\"true\"`, `\"false\"`, and `\"null\"` will be\ninterpreted as their JavaScript equivalents.\n\nYou can also mix types and values, or multiple types, in a list. For\ninstance `{ blah: [Number, null] }` would allow a value to be set to\neither a Number or null. When types are ordered, this implies a\npreference, and the first type that can be used to properly interpret\nthe value will be used.\n\nTo define a new type, add it to `nopt.typeDefs`. Each item in that\nhash is an object with a `type` member and a `validate` method. The\n`type` member is an object that matches what goes in the type list. The\n`validate` method is a function that gets called with `validate(data,\nkey, val)`. Validate methods should assign `data[key]` to the valid\nvalue of `val` if it can be handled properly, or return boolean\n`false` if it cannot.\n\nYou can also call `nopt.clean(data, types, typeDefs)` to clean up a\nconfig object and remove its invalid properties.\n\n## Error Handling\n\nBy default, nopt outputs a warning to standard error when invalid values for\nknown options are found. You can change this behavior by assigning a method\nto `nopt.invalidHandler`. This method will be called with\nthe offending `nopt.invalidHandler(key, val, types)`.\n\nIf no `nopt.invalidHandler` is assigned, then it will console.error\nits whining. If it is assigned to boolean `false` then the warning is\nsuppressed.\n\n## Abbreviations\n\nYes, they are supported. If you define options like this:\n\n```javascript\n{ \"foolhardyelephants\" : Boolean\n, \"pileofmonkeys\" : Boolean }\n```\n\nThen this will work:\n\n```bash\nnode program.js --foolhar --pil\nnode program.js --no-f --pileofmon\n# etc.\n```\n\n## Shorthands\n\nShorthands are a hash of shorter option names to a snippet of args that\nthey expand to.\n\nIf multiple one-character shorthands are all combined, and the\ncombination does not unambiguously match any other option or shorthand,\nthen they will be broken up into their constituent parts. For example:\n\n```json\n{ \"s\" : [\"--loglevel\", \"silent\"]\n, \"g\" : \"--global\"\n, \"f\" : \"--force\"\n, \"p\" : \"--parseable\"\n, \"l\" : \"--long\"\n}\n```\n\n```bash\nnpm ls -sgflp\n# just like doing this:\nnpm ls --loglevel silent --global --force --long --parseable\n```\n\n## The Rest of the args\n\nThe config object returned by nopt is given a special member called\n`argv`, which is an object with the following fields:\n\n* `remain`: The remaining args after all the parsing has occurred.\n* `original`: The args as they originally appeared.\n* `cooked`: The args after flags and shorthands are expanded.\n\n## Slicing\n\nNode programs are called with more or less the exact argv as it appears\nin C land, after the v8 and node-specific options have been plucked off.\nAs such, `argv[0]` is always `node` and `argv[1]` is always the\nJavaScript program being run.\n\nThat's usually not very useful to you. So they're sliced off by\ndefault. If you want them, then you can pass in `0` as the last\nargument, or any other number that you'd like to slice off the start of\nthe list.\n# big.js\n\n**A small, fast JavaScript library for arbitrary-precision decimal arithmetic.**\n\nThe little sister to [bignumber.js](https://github.com/MikeMcl/bignumber.js/) and [decimal.js](https://github.com/MikeMcl/decimal.js/). See [here](https://github.com/MikeMcl/big.js/wiki) for some notes on the difference between them.\n\n## Features\n\n - Faster, smaller and easier-to-use than JavaScript versions of Java's BigDecimal\n - Only 5.9 KB minified and 2.7 KB gzipped\n - Simple API\n - Replicates the `toExponential`, `toFixed` and `toPrecision` methods of JavaScript's Number type\n - Includes a `sqrt` method\n - Stores values in an accessible decimal floating point format\n - No dependencies\n - Comprehensive [documentation](http://mikemcl.github.io/big.js/) and test set\n\n## Set up\n\nThe library is the single JavaScript file *big.js* (or *big.min.js*, which is *big.js* minified).\n\nBrowser:\n\n```html\n<script src='path/to/big.js'></script>\n```\n\n[Node.js](http://nodejs.org):\n\n```bash\n$ npm install big.js\n```\n\n```javascript\nconst Big = require('big.js');\n```\n\nES6 module:\n\n```javascript\nimport Big from 'big.mjs';\n```\n## Use\n\n*In all examples below, `var`, semicolons and `toString` calls are not shown. If a commented-out value is in quotes it means `toString` has been called on the preceding expression.*\n\nThe library exports a single function, `Big`, the constructor of Big number instances.\nIt accepts a value of type number, string or Big number object.\n\n x = new Big(123.4567)\n y = Big('123456.7e-3') // 'new' is optional\n z = new Big(x)\n x.eq(y) && x.eq(z) && y.eq(z) // true\n\nA Big number is immutable in the sense that it is not changed by its methods.\n\n 0.3 - 0.1 // 0.19999999999999998\n x = new Big(0.3)\n x.minus(0.1) // \"0.2\"\n x // \"0.3\"\n\nThe methods that return a Big number can be chained.\n\n x.div(y).plus(z).times(9).minus('1.234567801234567e+8').plus(976.54321).div('2598.11772')\n x.sqrt().div(y).pow(3).gt(y.mod(z)) // true\n\nLike JavaScript's Number type, there are `toExponential`, `toFixed` and `toPrecision` methods.\n\n x = new Big(255.5)\n x.toExponential(5) // \"2.55500e+2\"\n x.toFixed(5) // \"255.50000\"\n x.toPrecision(5) // \"255.50\"\n\nThe arithmetic methods always return the exact result except `div`, `sqrt` and `pow`\n(with negative exponent), as these methods involve division.\n\nThe maximum number of decimal places and the rounding mode used to round the results of these methods is determined by the value of the `DP` and `RM` properties of the `Big` number constructor.\n\n Big.DP = 10\n Big.RM = 1\n\n x = new Big(2);\n y = new Big(3);\n z = x.div(y) // \"0.6666666667\"\n z.sqrt() // \"0.8164965809\"\n z.pow(-3) // \"3.3749999995\"\n z.times(z) // \"0.44444444448888888889\"\n z.times(z).round(10) // \"0.4444444445\"\n\nMultiple Big number constructors can be created, each with an independent configuration.\n\nThe value of a Big number is stored in a decimal floating point format in terms of a coefficient, exponent and sign.\n\n x = new Big(-123.456);\n x.c // [1,2,3,4,5,6] coefficient (i.e. significand)\n x.e // 2 exponent\n x.s // -1 sign\n\nFor further information see the [API](http://mikemcl.github.io/big.js/) reference from the *doc* folder.\n\n## Test\n\nThe *test* directory contains the test scripts for each Big number method.\n\nThe tests can be run with Node.js or a browser.\n\nTo run all the tests\n\n $ npm test\n\nTo test a single method\n\n $ node test/toFixed\n\nFor the browser, see *single-test.html* and *every-test.html* in the *test/browser* directory.\n\n*big-vs-number.html* is a simple application that enables some of the methods of big.js to be compared with those of JavaScript's Number type.\n\n## Performance\n\nThe *perf* directory contains two legacy applications and a *lib* directory containing the BigDecimal libraries used by both.\n\n*big-vs-bigdecimal.html* tests the performance of big.js against the JavaScript translations of two versions of BigDecimal, its use should be more or less self-explanatory.\n\n* [GWT: java.math.BigDecimal](https://github.com/iriscouch/bigdecimal.js)\n* [ICU4J: com.ibm.icu.math.BigDecimal](https://github.com/dtrebbien/BigDecimal.js)\n\nThe BigDecimal in the npm registry is the GWT version. It has some bugs, see the Node.js script *perf/lib/bigdecimal_GWT/bugs.js* for examples of flaws in its *remainder*, *divide* and *compareTo* methods.\n\n*bigtime.js* is a Node.js command-line application which tests the performance of big.js against the GWT version of\nBigDecimal from the npm registry.\n\nFor example, to compare the time taken by the big.js `plus` method and the BigDecimal `add` method\n\n $ node bigtime plus 10000 40\n\nThis will time 10000 calls to each, using operands of up to 40 random digits and will check that the results match.\n\nFor help\n\n $ node bigtime -h\n\n## Build\n\nIf [uglify-js](https://github.com/mishoo/UglifyJS2) is installed globally\n\n $ npm install uglify-js -g\n\nthen\n\n $ npm run build\n\nwill create *big.min.js*.\n\n## TypeScript\n\nThe [DefinitelyTyped](https://github.com/borisyankov/DefinitelyTyped) project has a Typescript type definitions file for big.js.\n\n $ npm install @types/big.js\n\nAny questions about the TypeScript type definitions file should be addressed to the DefinitelyTyped project.\n\n## Feedback\n\nBugs/comments/questions?\n\nOpen an issue, or email <a href=\"mailto:M8ch88l@gmail.com\">Michael</a>\n\n## Licence\n\n[MIT](LICENCE)\n\n## Contributors\n\nThis project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].\n<a href=\"graphs/contributors\"><img src=\"https://opencollective.com/bigjs/contributors.svg?width=890&button=false\" /></a>\n\n## Backers\n\nThank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/bigjs#backer)]\n\n<a href=\"https://opencollective.com/bigjs#backers\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/backers.svg?width=890\"></a>\n\n## Sponsors\n\nSupport this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/bigjs#sponsor)]\n\n<a href=\"https://opencollective.com/bigjs/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/5/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/6/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/7/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/8/avatar.svg\"></a>\n<a href=\"https://opencollective.com/bigjs/sponsor/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/bigjs/sponsor/9/avatar.svg\"></a>\n# compression\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nNode.js compression middleware.\n\nThe following compression codings are supported:\n\n - deflate\n - gzip\n\n## Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```bash\n$ npm install compression\n```\n\n## API\n\n<!-- eslint-disable no-unused-vars -->\n\n```js\nvar compression = require('compression')\n```\n\n### compression([options])\n\nReturns the compression middleware using the given `options`. The middleware\nwill attempt to compress response bodies for all request that traverse through\nthe middleware, based on the given `options`.\n\nThis middleware will never compress responses that include a `Cache-Control`\nheader with the [`no-transform` directive](https://tools.ietf.org/html/rfc7234#section-5.2.2.4),\nas compressing will transform the body.\n\n#### Options\n\n`compression()` accepts these properties in the options object. In addition to\nthose listed below, [zlib](http://nodejs.org/api/zlib.html) options may be\npassed in to the options object.\n\n##### chunkSize\n\nThe default value is `zlib.Z_DEFAULT_CHUNK`, or `16384`.\n\nSee [Node.js documentation](http://nodejs.org/api/zlib.html#zlib_memory_usage_tuning)\nregarding the usage.\n\n##### filter\n\nA function to decide if the response should be considered for compression.\nThis function is called as `filter(req, res)` and is expected to return\n`true` to consider the response for compression, or `false` to not compress\nthe response.\n\nThe default filter function uses the [compressible](https://www.npmjs.com/package/compressible)\nmodule to determine if `res.getHeader('Content-Type')` is compressible.\n\n##### level\n\nThe level of zlib compression to apply to responses. A higher level will result\nin better compression, but will take longer to complete. A lower level will\nresult in less compression, but will be much faster.\n\nThis is an integer in the range of `0` (no compression) to `9` (maximum\ncompression). The special value `-1` can be used to mean the \"default\ncompression level\", which is a default compromise between speed and\ncompression (currently equivalent to level 6).\n\n - `-1` Default compression level (also `zlib.Z_DEFAULT_COMPRESSION`).\n - `0` No compression (also `zlib.Z_NO_COMPRESSION`).\n - `1` Fastest compression (also `zlib.Z_BEST_SPEED`).\n - `2`\n - `3`\n - `4`\n - `5`\n - `6` (currently what `zlib.Z_DEFAULT_COMPRESSION` points to).\n - `7`\n - `8`\n - `9` Best compression (also `zlib.Z_BEST_COMPRESSION`).\n\nThe default value is `zlib.Z_DEFAULT_COMPRESSION`, or `-1`.\n\n**Note** in the list above, `zlib` is from `zlib = require('zlib')`.\n\n##### memLevel\n\nThis specifies how much memory should be allocated for the internal compression\nstate and is an integer in the range of `1` (minimum level) and `9` (maximum\nlevel).\n\nThe default value is `zlib.Z_DEFAULT_MEMLEVEL`, or `8`.\n\nSee [Node.js documentation](http://nodejs.org/api/zlib.html#zlib_memory_usage_tuning)\nregarding the usage.\n\n##### strategy\n\nThis is used to tune the compression algorithm. This value only affects the\ncompression ratio, not the correctness of the compressed output, even if it\nis not set appropriately.\n\n - `zlib.Z_DEFAULT_STRATEGY` Use for normal data.\n - `zlib.Z_FILTERED` Use for data produced by a filter (or predictor).\n Filtered data consists mostly of small values with a somewhat random\n distribution. In this case, the compression algorithm is tuned to\n compress them better. The effect is to force more Huffman coding and less\n string matching; it is somewhat intermediate between `zlib.Z_DEFAULT_STRATEGY`\n and `zlib.Z_HUFFMAN_ONLY`.\n - `zlib.Z_FIXED` Use to prevent the use of dynamic Huffman codes, allowing\n for a simpler decoder for special applications.\n - `zlib.Z_HUFFMAN_ONLY` Use to force Huffman encoding only (no string match).\n - `zlib.Z_RLE` Use to limit match distances to one (run-length encoding).\n This is designed to be almost as fast as `zlib.Z_HUFFMAN_ONLY`, but give\n better compression for PNG image data.\n\n**Note** in the list above, `zlib` is from `zlib = require('zlib')`.\n\n##### threshold\n\nThe byte threshold for the response body size before compression is considered\nfor the response, defaults to `1kb`. This is a number of bytes or any string\naccepted by the [bytes](https://www.npmjs.com/package/bytes) module.\n\n**Note** this is only an advisory setting; if the response size cannot be determined\nat the time the response headers are written, then it is assumed the response is\n_over_ the threshold. To guarantee the response size can be determined, be sure\nset a `Content-Length` response header.\n\n##### windowBits\n\nThe default value is `zlib.Z_DEFAULT_WINDOWBITS`, or `15`.\n\nSee [Node.js documentation](http://nodejs.org/api/zlib.html#zlib_memory_usage_tuning)\nregarding the usage.\n\n#### .filter\n\nThe default `filter` function. This is used to construct a custom filter\nfunction that is an extension of the default function.\n\n```js\nvar compression = require('compression')\nvar express = require('express')\n\nvar app = express()\napp.use(compression({ filter: shouldCompress }))\n\nfunction shouldCompress (req, res) {\n if (req.headers['x-no-compression']) {\n // don't compress responses with this request header\n return false\n }\n\n // fallback to standard filter function\n return compression.filter(req, res)\n}\n```\n\n### res.flush\n\nThis module adds a `res.flush()` method to force the partially-compressed\nresponse to be flushed to the client.\n\n## Examples\n\n### express/connect\n\nWhen using this module with express or connect, simply `app.use` the module as\nhigh as you like. Requests that pass through the middleware will be compressed.\n\n```js\nvar compression = require('compression')\nvar express = require('express')\n\nvar app = express()\n\n// compress all responses\napp.use(compression())\n\n// add all routes\n```\n\n### Server-Sent Events\n\nBecause of the nature of compression this module does not work out of the box\nwith server-sent events. To compress content, a window of the output needs to\nbe buffered up in order to get good compression. Typically when using server-sent\nevents, there are certain block of data that need to reach the client.\n\nYou can achieve this by calling `res.flush()` when you need the data written to\nactually make it to the client.\n\n```js\nvar compression = require('compression')\nvar express = require('express')\n\nvar app = express()\n\n// compress responses\napp.use(compression())\n\n// server-sent event stream\napp.get('/events', function (req, res) {\n res.setHeader('Content-Type', 'text/event-stream')\n res.setHeader('Cache-Control', 'no-cache')\n\n // send a ping approx every 2 seconds\n var timer = setInterval(function () {\n res.write('data: ping\\n\\n')\n\n // !!! this is the important part\n res.flush()\n }, 2000)\n\n res.on('close', function () {\n clearInterval(timer)\n })\n})\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/compression.svg\n[npm-url]: https://npmjs.org/package/compression\n[travis-image]: https://img.shields.io/travis/expressjs/compression/master.svg\n[travis-url]: https://travis-ci.org/expressjs/compression\n[coveralls-image]: https://img.shields.io/coveralls/expressjs/compression/master.svg\n[coveralls-url]: https://coveralls.io/r/expressjs/compression?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/compression.svg\n[downloads-url]: https://npmjs.org/package/compression\n# HAR Schema [![version][npm-version]][npm-url] [![License][npm-license]][license-url]\n\n> JSON Schema for HTTP Archive ([HAR][spec]).\n\n[![Build Status][travis-image]][travis-url]\n[![Downloads][npm-downloads]][npm-url]\n[![Code Climate][codeclimate-quality]][codeclimate-url]\n[![Coverage Status][codeclimate-coverage]][codeclimate-url]\n[![Dependency Status][dependencyci-image]][dependencyci-url]\n[![Dependencies][david-image]][david-url]\n\n## Install\n\n```bash\nnpm install --only=production --save har-schema\n```\n\n## Usage\n\nCompatible with any [JSON Schema validation tool][validator].\n\n----\n> :copyright: [ahmadnassri.com](https://www.ahmadnassri.com/) · \n> License: [ISC][license-url] · \n> Github: [@ahmadnassri](https://github.com/ahmadnassri) · \n> Twitter: [@ahmadnassri](https://twitter.com/ahmadnassri)\n\n[license-url]: http://choosealicense.com/licenses/isc/\n\n[travis-url]: https://travis-ci.org/ahmadnassri/har-schema\n[travis-image]: https://img.shields.io/travis/ahmadnassri/har-schema.svg?style=flat-square\n\n[npm-url]: https://www.npmjs.com/package/har-schema\n[npm-license]: https://img.shields.io/npm/l/har-schema.svg?style=flat-square\n[npm-version]: https://img.shields.io/npm/v/har-schema.svg?style=flat-square\n[npm-downloads]: https://img.shields.io/npm/dm/har-schema.svg?style=flat-square\n\n[codeclimate-url]: https://codeclimate.com/github/ahmadnassri/har-schema\n[codeclimate-quality]: https://img.shields.io/codeclimate/github/ahmadnassri/har-schema.svg?style=flat-square\n[codeclimate-coverage]: https://img.shields.io/codeclimate/coverage/github/ahmadnassri/har-schema.svg?style=flat-square\n\n[david-url]: https://david-dm.org/ahmadnassri/har-schema\n[david-image]: https://img.shields.io/david/ahmadnassri/har-schema.svg?style=flat-square\n\n[dependencyci-url]: https://dependencyci.com/github/ahmadnassri/har-schema\n[dependencyci-image]: https://dependencyci.com/github/ahmadnassri/har-schema/badge?style=flat-square\n\n[spec]: https://github.com/ahmadnassri/har-spec/blob/master/versions/1.2.md\n[validator]: https://github.com/ahmadnassri/har-validator\n# ieee754 [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]\n\n[travis-image]: https://img.shields.io/travis/feross/ieee754/master.svg\n[travis-url]: https://travis-ci.org/feross/ieee754\n[npm-image]: https://img.shields.io/npm/v/ieee754.svg\n[npm-url]: https://npmjs.org/package/ieee754\n[downloads-image]: https://img.shields.io/npm/dm/ieee754.svg\n[downloads-url]: https://npmjs.org/package/ieee754\n[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg\n[standard-url]: https://standardjs.com\n\n[![saucelabs][saucelabs-image]][saucelabs-url]\n\n[saucelabs-image]: https://saucelabs.com/browser-matrix/ieee754.svg\n[saucelabs-url]: https://saucelabs.com/u/ieee754\n\n### Read/write IEEE754 floating point numbers from/to a Buffer or array-like object.\n\n## install\n\n```\nnpm install ieee754\n```\n\n[Get supported ieee754 with the Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-ieee754?utm_source=npm-ieee754&utm_medium=referral&utm_campaign=readme)\n\n## methods\n\n`var ieee754 = require('ieee754')`\n\nThe `ieee754` object has the following functions:\n\n```\nieee754.read = function (buffer, offset, isLE, mLen, nBytes)\nieee754.write = function (buffer, value, offset, isLE, mLen, nBytes)\n```\n\nThe arguments mean the following:\n\n- buffer = the buffer\n- offset = offset into the buffer\n- value = value to set (only for `write`)\n- isLe = is little endian?\n- mLen = mantissa length\n- nBytes = number of bytes\n\n## what is ieee754?\n\nThe IEEE Standard for Floating-Point Arithmetic (IEEE 754) is a technical standard for floating-point computation. [Read more](http://en.wikipedia.org/wiki/IEEE_floating_point).\n\n## license\n\nBSD 3 Clause. Copyright (c) 2008, Fair Oaks Labs, Inc.\n# brace-expansion\n\n[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html), \nas known from sh/bash, in JavaScript.\n\n[](http://travis-ci.org/juliangruber/brace-expansion)\n[](https://www.npmjs.org/package/brace-expansion)\n[](https://greenkeeper.io/)\n\n[](https://ci.testling.com/juliangruber/brace-expansion)\n\n## Example\n\n```js\nvar expand = require('brace-expansion');\n\nexpand('file-{a,b,c}.jpg')\n// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']\n\nexpand('-v{,,}')\n// => ['-v', '-v', '-v']\n\nexpand('file{0..2}.jpg')\n// => ['file0.jpg', 'file1.jpg', 'file2.jpg']\n\nexpand('file-{a..c}.jpg')\n// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']\n\nexpand('file{2..0}.jpg')\n// => ['file2.jpg', 'file1.jpg', 'file0.jpg']\n\nexpand('file{0..4..2}.jpg')\n// => ['file0.jpg', 'file2.jpg', 'file4.jpg']\n\nexpand('file-{a..e..2}.jpg')\n// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']\n\nexpand('file{00..10..5}.jpg')\n// => ['file00.jpg', 'file05.jpg', 'file10.jpg']\n\nexpand('{{A..C},{a..c}}')\n// => ['A', 'B', 'C', 'a', 'b', 'c']\n\nexpand('ppp{,config,oe{,conf}}')\n// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']\n```\n\n## API\n\n```js\nvar expand = require('brace-expansion');\n```\n\n### var expanded = expand(str)\n\nReturn an array of all possible and valid expansions of `str`. If none are\nfound, `[str]` is returned.\n\nValid expansions are:\n\n```js\n/^(.*,)+(.+)?$/\n// {a,b,...}\n```\n\nA comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.\n\n```js\n/^-?\\d+\\.\\.-?\\d+(\\.\\.-?\\d+)?$/\n// {x..y[..incr]}\n```\n\nA numeric sequence from `x` to `y` inclusive, with optional increment.\nIf `x` or `y` start with a leading `0`, all the numbers will be padded\nto have equal length. Negative numbers and backwards iteration work too.\n\n```js\n/^-?\\d+\\.\\.-?\\d+(\\.\\.-?\\d+)?$/\n// {x..y[..incr]}\n```\n\nAn alphabetic sequence from `x` to `y` inclusive, with optional increment.\n`x` and `y` must be exactly one character, and if given, `incr` must be a\nnumber.\n\nFor compatibility reasons, the string `${` is not eligible for brace expansion.\n\n## Installation\n\nWith [npm](https://npmjs.org) do:\n\n```bash\nnpm install brace-expansion\n```\n\n## Contributors\n\n- [Julian Gruber](https://github.com/juliangruber)\n- [Isaac Z. Schlueter](https://github.com/isaacs)\n\n## Sponsors\n\nThis module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!\n\nDo you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!\n\n## License\n\n(MIT)\n\nCopyright (c) 2013 Julian Gruber <julian@juliangruber.com>\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of\nthis software and associated documentation files (the \"Software\"), to deal in\nthe Software without restriction, including without limitation the rights to\nuse, copy, modify, merge, publish, distribute, sublicense, and/or sell copies\nof the Software, and to permit persons to whom the Software is furnished to do\nso, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# stdout-stream\n\nNon-blocking stdout stream\n\n\tnpm install stdout-stream\n\n[](http://travis-ci.org/mafintosh/stdout-stream)\n\n\n## Rant\n\nTry saving this example as `example.js`\n\n``` js\nconsole.error('start');\nprocess.stdout.write(new Buffer(1024*1024));\nconsole.error('end');\n```\n\nAnd run the following program\n\n```\nnode example.js | sleep 1000\n```\n\nThe program will never print `end` since stdout in node currently is blocking - even when its being piped (!).\n\nstdout-stream tries to fix this by being a stream that writes to stdout but never blocks\n\n## Usage\n\n``` js\nvar stdout = require('stdout-stream');\n\nstdout.write('hello\\n'); // write should NEVER block\nstdout.write('non-blocking\\n')\nstdout.write('world\\n');\n```\n\n`stdout-stream` should behave in the same way as `process.stdout` (i.e. do not end on pipe etc)\n\n## License\n\nMIT\nwide-align\n----------\n\nA wide-character aware text alignment function for use in terminals / on the\nconsole.\n\n### Usage\n\n```\nvar align = require('wide-align')\n\n// Note that if you view this on a unicode console, all of the slashes are\n// aligned. This is because on a console, all narrow characters are\n// an en wide and all wide characters are an em. In browsers, this isn't\n// held to and wide characters like \"古\" can be less than two narrow\n// characters even with a fixed width font.\n\nconsole.log(align.center('abc', 10)) // ' abc '\nconsole.log(align.center('古古古', 10)) // ' 古古古 '\nconsole.log(align.left('abc', 10)) // 'abc '\nconsole.log(align.left('古古古', 10)) // '古古古 '\nconsole.log(align.right('abc', 10)) // ' abc'\nconsole.log(align.right('古古古', 10)) // ' 古古古'\n```\n\n### Functions\n\n#### `align.center(str, length)` → `str`\n\nReturns *str* with spaces added to both sides such that that it is *length*\nchars long and centered in the spaces.\n\n#### `align.left(str, length)` → `str`\n\nReturns *str* with spaces to the right such that it is *length* chars long.\n\n### `align.right(str, length)` → `str`\n\nReturns *str* with spaces to the left such that it is *length* chars long.\n\n### Origins\n\nThese functions were originally taken from \n[cliui](https://npmjs.com/package/cliui). Changes include switching to the\nMUCH faster pad generation function from\n[lodash](https://npmjs.com/package/lodash), making center alignment pad\nboth sides and adding left alignment.\n# jsesc [](https://travis-ci.org/mathiasbynens/jsesc) [](https://coveralls.io/r/mathiasbynens/jsesc) [](https://gemnasium.com/mathiasbynens/jsesc)\n\nGiven some data, _jsesc_ returns a stringified representation of that data. jsesc is similar to `JSON.stringify()` except:\n\n1. it outputs JavaScript instead of JSON [by default](#json), enabling support for data structures like ES6 maps and sets;\n2. it offers [many options](#api) to customize the output;\n3. its output is ASCII-safe [by default](#minimal), thanks to its use of [escape sequences](https://mathiasbynens.be/notes/javascript-escapes) where needed.\n\nFor any input, jsesc generates the shortest possible valid printable-ASCII-only output. [Here’s an online demo.](https://mothereff.in/js-escapes)\n\njsesc’s output can be used instead of `JSON.stringify`’s to avoid [mojibake](https://en.wikipedia.org/wiki/Mojibake) and other encoding issues, or even to [avoid errors](https://twitter.com/annevk/status/380000829643571200) when passing JSON-formatted data (which may contain U+2028 LINE SEPARATOR, U+2029 PARAGRAPH SEPARATOR, or [lone surrogates](https://esdiscuss.org/topic/code-points-vs-unicode-scalar-values#content-14)) to a JavaScript parser or an UTF-8 encoder.\n\n## Installation\n\nVia [npm](https://www.npmjs.com/):\n\n```bash\nnpm install jsesc\n```\n\nIn [Node.js](https://nodejs.org/):\n\n```js\nconst jsesc = require('jsesc');\n```\n\n## API\n\n### `jsesc(value, options)`\n\nThis function takes a value and returns an escaped version of the value where any characters that are not printable ASCII symbols are escaped using the shortest possible (but valid) [escape sequences for use in JavaScript strings](https://mathiasbynens.be/notes/javascript-escapes). The first supported value type is strings:\n\n```js\njsesc('Ich ♥ Bücher');\n// → 'Ich \\\\u2665 B\\\\xFCcher'\n\njsesc('foo 𝌆 bar');\n// → 'foo \\\\uD834\\\\uDF06 bar'\n```\n\nInstead of a string, the `value` can also be an array, an object, a map, a set, or a buffer. In such cases, `jsesc` returns a stringified version of the value where any characters that are not printable ASCII symbols are escaped in the same way.\n\n```js\n// Escaping an array\njsesc([\n 'Ich ♥ Bücher', 'foo 𝌆 bar'\n]);\n// → '[\\'Ich \\\\u2665 B\\\\xFCcher\\',\\'foo \\\\uD834\\\\uDF06 bar\\']'\n\n// Escaping an object\njsesc({\n 'Ich ♥ Bücher': 'foo 𝌆 bar'\n});\n// → '{\\'Ich \\\\u2665 B\\\\xFCcher\\':\\'foo \\\\uD834\\\\uDF06 bar\\'}'\n```\n\nThe optional `options` argument accepts an object with the following options:\n\n#### `quotes`\n\nThe default value for the `quotes` option is `'single'`. This means that any occurrences of `'` in the input string are escaped as `\\'`, so that the output can be used in a string literal wrapped in single quotes.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.');\n// → 'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single'\n});\n// → '`Lorem` ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.'\n// → \"`Lorem` ipsum \\\"dolor\\\" sit \\\\'amet\\\\' etc.\"\n```\n\nIf you want to use the output as part of a string literal wrapped in double quotes, set the `quotes` option to `'double'`.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double'\n});\n// → '`Lorem` ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.'\n// → \"`Lorem` ipsum \\\\\\\"dolor\\\\\\\" sit 'amet' etc.\"\n```\n\nIf you want to use the output as part of a template literal (i.e. wrapped in backticks), set the `quotes` option to `'backtick'`.\n\n```js\njsesc('`Lorem` ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'backtick'\n});\n// → '\\\\`Lorem\\\\` ipsum \"dolor\" sit \\'amet\\' etc.'\n// → \"\\\\`Lorem\\\\` ipsum \\\"dolor\\\" sit 'amet' etc.\"\n// → `\\\\\\`Lorem\\\\\\` ipsum \"dolor\" sit 'amet' etc.`\n```\n\nThis setting also affects the output for arrays and objects:\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'quotes': 'double'\n});\n// → '{\"Ich \\\\u2665 B\\\\xFCcher\":\"foo \\\\uD834\\\\uDF06 bar\"}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'quotes': 'double'\n});\n// → '[\"Ich \\\\u2665 B\\\\xFCcher\",\"foo \\\\uD834\\\\uDF06 bar\"]'\n```\n\n#### `numbers`\n\nThe default value for the `numbers` option is `'decimal'`. This means that any numeric values are represented using decimal integer literals. Other valid options are `binary`, `octal`, and `hexadecimal`, which result in binary integer literals, octal integer literals, and hexadecimal integer literals, respectively.\n\n```js\njsesc(42, {\n 'numbers': 'binary'\n});\n// → '0b101010'\n\njsesc(42, {\n 'numbers': 'octal'\n});\n// → '0o52'\n\njsesc(42, {\n 'numbers': 'decimal'\n});\n// → '42'\n\njsesc(42, {\n 'numbers': 'hexadecimal'\n});\n// → '0x2A'\n```\n\n#### `wrap`\n\nThe `wrap` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output is a valid JavaScript string literal wrapped in quotes. The type of quotes can be specified through the `quotes` setting.\n\n```js\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'single',\n 'wrap': true\n});\n// → '\\'Lorem ipsum \"dolor\" sit \\\\\\'amet\\\\\\' etc.\\''\n// → \"\\'Lorem ipsum \\\"dolor\\\" sit \\\\\\'amet\\\\\\' etc.\\'\"\n\njsesc('Lorem ipsum \"dolor\" sit \\'amet\\' etc.', {\n 'quotes': 'double',\n 'wrap': true\n});\n// → '\"Lorem ipsum \\\\\"dolor\\\\\" sit \\'amet\\' etc.\"'\n// → \"\\\"Lorem ipsum \\\\\\\"dolor\\\\\\\" sit \\'amet\\' etc.\\\"\"\n```\n\n#### `es6`\n\nThe `es6` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, any astral Unicode symbols in the input are escaped using [ECMAScript 6 Unicode code point escape sequences](https://mathiasbynens.be/notes/javascript-escapes#unicode-code-point) instead of using separate escape sequences for each surrogate half. If backwards compatibility with ES5 environments is a concern, don’t enable this setting. If the `json` setting is enabled, the value for the `es6` setting is ignored (as if it was `false`).\n\n```js\n// By default, the `es6` option is disabled:\njsesc('foo 𝌆 bar 💩 baz');\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To explicitly disable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': false\n});\n// → 'foo \\\\uD834\\\\uDF06 bar \\\\uD83D\\\\uDCA9 baz'\n\n// To enable it:\njsesc('foo 𝌆 bar 💩 baz', {\n 'es6': true\n});\n// → 'foo \\\\u{1D306} bar \\\\u{1F4A9} baz'\n```\n\n#### `escapeEverything`\n\nThe `escapeEverything` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, all the symbols in the output are escaped — even printable ASCII symbols.\n\n```js\njsesc('lolwat\"foo\\'bar', {\n 'escapeEverything': true\n});\n// → '\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\\\'\\\\x62\\\\x61\\\\x72'\n// → \"\\\\x6C\\\\x6F\\\\x6C\\\\x77\\\\x61\\\\x74\\\\\\\"\\\\x66\\\\x6F\\\\x6F\\\\'\\\\x62\\\\x61\\\\x72\"\n```\n\nThis setting also affects the output for string literals within arrays and objects.\n\n#### `minimal`\n\nThe `minimal` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, only a limited set of symbols in the output are escaped:\n\n* U+0000 `\\0`\n* U+0008 `\\b`\n* U+0009 `\\t`\n* U+000A `\\n`\n* U+000C `\\f`\n* U+000D `\\r`\n* U+005C `\\\\`\n* U+2028 `\\u2028`\n* U+2029 `\\u2029`\n* whatever symbol is being used for wrapping string literals (based on [the `quotes` option](#quotes))\n\nNote: with this option enabled, jsesc output is no longer guaranteed to be ASCII-safe.\n\n```js\njsesc('foo\\u2029bar\\nbaz©qux𝌆flops', {\n 'minimal': false\n});\n// → 'foo\\\\u2029bar\\\\nbaz©qux𝌆flops'\n```\n\n#### `isScriptContext`\n\nThe `isScriptContext` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, occurrences of [`</script` and `</style`](https://mathiasbynens.be/notes/etago) in the output are escaped as `<\\/script` and `<\\/style`, and [`<!--`](https://mathiasbynens.be/notes/etago#comment-8) is escaped as `\\x3C!--` (or `\\u003C!--` when the `json` option is enabled). This setting is useful when jsesc’s output ends up as part of a `<script>` or `<style>` element in an HTML document.\n\n```js\njsesc('foo</script>bar', {\n 'isScriptContext': true\n});\n// → 'foo<\\\\/script>bar'\n```\n\n#### `compact`\n\nThe `compact` option takes a boolean value (`true` or `false`), and defaults to `true` (enabled). When enabled, the output for arrays and objects is as compact as possible; it’s not formatted nicely.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': true // this is the default\n});\n// → '{\\'Ich \\u2665 B\\xFCcher\\':\\'foo \\uD834\\uDF06 bar\\'}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false\n});\n// → '[\\n\\t\\'Ich \\u2665 B\\xFCcher\\',\\n\\t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `indent`\n\nThe `indent` option takes a string value, and defaults to `'\\t'`. When the `compact` setting is enabled (`true`), the value of the `indent` option is used to format the output for arrays and objects.\n\n```js\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': '\\t' // this is the default\n});\n// → '{\\n\\t\\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc({ 'Ich ♥ Bücher': 'foo 𝌆 bar' }, {\n 'compact': false,\n 'indent': ' '\n});\n// → '{\\n \\'Ich \\u2665 B\\xFCcher\\': \\'foo \\uD834\\uDF06 bar\\'\\n}'\n\njsesc([ 'Ich ♥ Bücher', 'foo 𝌆 bar' ], {\n 'compact': false,\n 'indent': ' '\n});\n// → '[\\n \\'Ich \\u2665 B\\xFCcher\\',\\n\\ t\\'foo \\uD834\\uDF06 bar\\'\\n]'\n```\n\nThis setting has no effect on the output for strings.\n\n#### `indentLevel`\n\nThe `indentLevel` option takes a numeric value, and defaults to `0`. It represents the current indentation level, i.e. the number of times the value of [the `indent` option](#indent) is repeated.\n\n```js\njsesc(['a', 'b', 'c'], {\n 'compact': false,\n 'indentLevel': 1\n});\n// → '[\\n\\t\\t\\'a\\',\\n\\t\\t\\'b\\',\\n\\t\\t\\'c\\'\\n\\t]'\n\njsesc(['a', 'b', 'c'], {\n 'compact': false,\n 'indentLevel': 2\n});\n// → '[\\n\\t\\t\\t\\'a\\',\\n\\t\\t\\t\\'b\\',\\n\\t\\t\\t\\'c\\'\\n\\t\\t]'\n```\n\n#### `json`\n\nThe `json` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output is valid JSON. [Hexadecimal character escape sequences](https://mathiasbynens.be/notes/javascript-escapes#hexadecimal) and [the `\\v` or `\\0` escape sequences](https://mathiasbynens.be/notes/javascript-escapes#single) are not used. Setting `json: true` implies `quotes: 'double', wrap: true, es6: false`, although these values can still be overridden if needed — but in such cases, the output won’t be valid JSON anymore.\n\n```js\njsesc('foo\\x00bar\\xFF\\uFFFDbaz', {\n 'json': true\n});\n// → '\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"'\n\njsesc({ 'foo\\x00bar\\xFF\\uFFFDbaz': 'foo\\x00bar\\xFF\\uFFFDbaz' }, {\n 'json': true\n});\n// → '{\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\":\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"}'\n\njsesc([ 'foo\\x00bar\\xFF\\uFFFDbaz', 'foo\\x00bar\\xFF\\uFFFDbaz' ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\",\"foo\\\\u0000bar\\\\u00FF\\\\uFFFDbaz\"]'\n\n// Values that are acceptable in JSON but aren’t strings, arrays, or object\n// literals can’t be escaped, so they’ll just be preserved:\njsesc([ 'foo\\x00bar', [1, '©', { 'foo': true, 'qux': null }], 42 ], {\n 'json': true\n});\n// → '[\"foo\\\\u0000bar\",[1,\"\\\\u00A9\",{\"foo\":true,\"qux\":null}],42]'\n// Values that aren’t allowed in JSON are run through `JSON.stringify()`:\njsesc([ undefined, -Infinity ], {\n 'json': true\n});\n// → '[null,null]'\n```\n\n**Note:** Using this option on objects or arrays that contain non-string values relies on `JSON.stringify()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](http://bestiejs.github.io/json3/).\n\n#### `lowercaseHex`\n\nThe `lowercaseHex` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, any alphabetical hexadecimal digits in escape sequences as well as any hexadecimal integer literals (see [the `numbers` option](#numbers)) in the output are in lowercase.\n\n```js\njsesc('Ich ♥ Bücher', {\n 'lowercaseHex': true\n});\n// → 'Ich \\\\u2665 B\\\\xfccher'\n// ^^\n\njsesc(42, {\n 'numbers': 'hexadecimal',\n 'lowercaseHex': true\n});\n// → '0x2a'\n// ^^\n```\n\n### `jsesc.version`\n\nA string representing the semantic version number.\n\n### Using the `jsesc` binary\n\nTo use the `jsesc` binary in your shell, simply install jsesc globally using npm:\n\n```bash\nnpm install -g jsesc\n```\n\nAfter that you’re able to escape strings from the command line:\n\n```bash\n$ jsesc 'föo ♥ bår 𝌆 baz'\nf\\xF6o \\u2665 b\\xE5r \\uD834\\uDF06 baz\n```\n\nTo escape arrays or objects containing string values, use the `-o`/`--object` option:\n\n```bash\n$ jsesc --object '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{'f\\xF6o':'\\u2665','b\\xE5r':'\\uD834\\uDF06 baz'}\n```\n\nTo prettify the output in such cases, use the `-p`/`--pretty` option:\n\n```bash\n$ jsesc --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n 'f\\xF6o': '\\u2665',\n 'b\\xE5r': '\\uD834\\uDF06 baz'\n}\n```\n\nFor valid JSON output, use the `-j`/`--json` option:\n\n```bash\n$ jsesc --json --pretty '{ \"föo\": \"♥\", \"bår\": \"𝌆 baz\" }'\n{\n \"f\\u00F6o\": \"\\u2665\",\n \"b\\u00E5r\": \"\\uD834\\uDF06 baz\"\n}\n```\n\nRead a local JSON file, escape any non-ASCII symbols, and save the result to a new file:\n\n```bash\n$ jsesc --json --object < data-raw.json > data-escaped.json\n```\n\nOr do the same with an online JSON file:\n\n```bash\n$ curl -sL \"http://git.io/aorKgQ\" | jsesc --json --object > data-escaped.json\n```\n\nSee `jsesc --help` for the full list of options.\n\n## Support\n\nAs of v2.0.0, jsesc supports Node.js v4+ only.\n\nOlder versions (up to jsesc v1.3.0) support Chrome 27, Firefox 3, Safari 4, Opera 10, IE 6, Node.js v6.0.0, Narwhal 0.3.2, RingoJS 0.8-0.11, PhantomJS 1.9.0, and Rhino 1.7RC4. **Note:** Using the `json` option on objects or arrays that contain non-string values relies on `JSON.parse()`. For legacy environments like IE ≤ 7, use [a `JSON` polyfill](https://bestiejs.github.io/json3/).\n\n## Author\n\n| [](https://twitter.com/mathias \"Follow @mathias on Twitter\") |\n|---|\n| [Mathias Bynens](https://mathiasbynens.be/) |\n\n## License\n\nThis library is available under the [MIT](https://mths.be/mit) license.\n# define-property [](https://www.npmjs.com/package/define-property) [](https://npmjs.org/package/define-property) [](https://npmjs.org/package/define-property) [](https://travis-ci.org/jonschlinkert/define-property)\n\n> Define a non-enumerable property on an object.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save define-property\n```\n\nInstall with [yarn](https://yarnpkg.com):\n\n```sh\n$ yarn add define-property\n```\n\n## Usage\n\n**Params**\n\n* `obj`: The object on which to define the property.\n* `prop`: The name of the property to be defined or modified.\n* `descriptor`: The descriptor for the property being defined or modified.\n\n```js\nvar define = require('define-property');\nvar obj = {};\ndefine(obj, 'foo', function(val) {\n return val.toUpperCase();\n});\n\nconsole.log(obj);\n//=> {}\n\nconsole.log(obj.foo('bar'));\n//=> 'BAR'\n```\n\n**get/set**\n\n```js\ndefine(obj, 'foo', {\n get: function() {},\n set: function() {}\n});\n```\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep \"Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 20, 2017._\n# is-descriptor [](https://www.npmjs.com/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://npmjs.org/package/is-descriptor) [](https://travis-ci.org/jonschlinkert/is-descriptor)\n\n> Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-descriptor\n```\n\n## Usage\n\n```js\nvar isDescriptor = require('is-descriptor');\n\nisDescriptor({value: 'foo'})\n//=> true\nisDescriptor({get: function(){}, set: function(){}})\n//=> true\nisDescriptor({get: 'foo', set: function(){}})\n//=> false\n```\n\nYou may also check for a descriptor by passing an object as the first argument and property name (`string`) as the second argument.\n\n```js\nvar obj = {};\nobj.foo = 'abc';\n\nObject.defineProperty(obj, 'bar', {\n value: 'xyz'\n});\n\nisDescriptor(obj, 'foo');\n//=> true\nisDescriptor(obj, 'bar');\n//=> true\n```\n\n## Examples\n\n### value type\n\n`false` when not an object\n\n```js\nisDescriptor('a');\n//=> false\nisDescriptor(null);\n//=> false\nisDescriptor([]);\n//=> false\n```\n\n### data descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({value: 'foo'});\n//=> true\nisDescriptor({value: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({value: 'foo', get: noop});\n//=> false\nisDescriptor({get: noop, value: noop});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({value: 'foo', enumerable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', configurable: 'foo'});\n//=> false\nisDescriptor({value: 'foo', writable: 'foo'});\n//=> false\n```\n\n### accessor descriptor\n\n`true` when the object has valid properties with valid values.\n\n```js\nisDescriptor({get: noop, set: noop});\n//=> true\nisDescriptor({get: noop});\n//=> true\nisDescriptor({set: noop});\n//=> true\n```\n\n`false` when the object has invalid properties\n\n```js\nisDescriptor({get: noop, set: noop, bar: 'baz'});\n//=> false\nisDescriptor({get: noop, writable: true});\n//=> false\nisDescriptor({get: noop, value: true});\n//=> false\n```\n\n`false` when an accessor is not a function\n\n```js\nisDescriptor({get: noop, set: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: noop});\n//=> false\nisDescriptor({get: 'foo', bar: 'baz'});\n//=> false\nisDescriptor({get: 'foo', set: 'baz'});\n//=> false\n```\n\n`false` when a value is not the correct type\n\n```js\nisDescriptor({get: noop, set: noop, enumerable: 'foo'});\n//=> false\nisDescriptor({set: noop, configurable: 'foo'});\n//=> false\nisDescriptor({get: noop, configurable: 'foo'});\n//=> false\n```\n\n## About\n\n### Related projects\n\n* [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor \"Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.\")\n* [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor \"Returns true if a value has the characteristics of a valid JavaScript data descriptor.\")\n* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor \"Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 24 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 1 | [doowb](https://github.com/doowb) |\n| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._\n# ripemd160\n\n[](https://www.npmjs.org/package/ripemd160)\n[](https://travis-ci.org/crypto-browserify/ripemd160)\n[](https://david-dm.org/crypto-browserify/ripemd160#info=dependencies)\n\n[](https://github.com/feross/standard)\n\nNode style `ripemd160` on pure JavaScript.\n\n## Example\n\n```js\nvar RIPEMD160 = require('ripemd160')\n\nconsole.log(new RIPEMD160().update('42').digest('hex'))\n// => 0df020ba32aa9b8b904471ff582ce6b579bf8bc8\n\nvar ripemd160stream = new RIPEMD160()\nripemd160stream.end('42')\nconsole.log(ripemd160stream.read().toString('hex'))\n// => 0df020ba32aa9b8b904471ff582ce6b579bf8bc8\n```\n\n## LICENSE\n\nMIT\n# has-value [](https://www.npmjs.com/package/has-value) [](https://npmjs.org/package/has-value) [](https://travis-ci.org/jonschlinkert/has-value)\n\n> Returns true if a value exists, false if empty. Works with deeply nested values using object paths.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install has-value --save\n```\n\n**Works for:**\n\n* booleans\n* functions\n* numbers (pass `true` as the last arg to treat zero as a value instead of falsey)\n* strings\n* nulls\n* object\n* arrays\n\n## Usage\n\nWorks with nested object paths or a single value:\n\n```js\nvar hasValue = require('has-value');\n\nhasValue({a: {b: {c: 'foo'}}} 'a.b.c');\n//=> true\n\nhasValue('a');\n//=> true\n\nhasValue('');\n//=> false\n\nhasValue(1);\n//=> true\n\nhasValue(0);\n//=> false\n\nhasValue(0, true); // pass `true` as the last arg to treat zero as a value\n//=> true\n\nhasValue({a: 'a'}});\n//=> true\n\nhasValue({}});\n//=> false\n\nhasValue(['a']);\n//=> true\n\nhasValue([]);\n//=> false\n\nhasValue(function(foo) {}); // function length/arity\n//=> true\n\nhasValue(function() {});\n//=> false\n\nhasValue(true);\nhasValue(false);\n//=> true\n```\n\n## isEmpty\n\nTo do the opposite and test for empty values, do:\n\n```js\nfunction isEmpty(o, isZero) {\n return !hasValue.apply(hasValue, arguments);\n}\n```\n\n## Related projects\n\nYou might also be interested in these projects:\n\n* [get-object](https://www.npmjs.com/package/get-object): Get a property from an object using dot (object path) notation. | [homepage](https://github.com/jonschlinkert/get-object)\n* [get-property](https://www.npmjs.com/package/get-property): Get a nested property or its value from an object using simple `a.b.c` paths. | [homepage](https://github.com/jonschlinkert/get-property)\n* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value)\n* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value)\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/has-value/issues/new).\n\n## Building docs\n\nGenerate readme and API documentation with [verb](https://github.com/verbose/verb):\n\n```sh\n$ npm install verb && npm run docs\n```\n\nOr, if [verb](https://github.com/verbose/verb) is installed globally:\n\n```sh\n$ verb\n```\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm install -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT license](https://github.com/jonschlinkert/has-value/blob/master/LICENSE).\n\n***\n\n_This file was generated by [verb](https://github.com/verbose/verb), v, on March 27, 2016._\n# mixin-deep [](https://www.npmjs.com/package/mixin-deep) [](https://npmjs.org/package/mixin-deep) [](https://npmjs.org/package/mixin-deep) [](https://travis-ci.org/jonschlinkert/mixin-deep)\n\n> Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save mixin-deep\n```\n\n## Usage\n\n```js\nvar mixinDeep = require('mixin-deep');\n\nmixinDeep({a: {aa: 'aa'}}, {a: {bb: 'bb'}}, {a: {cc: 'cc'}});\n//=> { a: { aa: 'aa', bb: 'bb', cc: 'cc' } }\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [defaults-deep](https://www.npmjs.com/package/defaults-deep): Like `extend` but recursively copies only the missing properties/values to the target object. | [homepage](https://github.com/jonschlinkert/defaults-deep \"Like `extend` but recursively copies only the missing properties/values to the target object.\")\n* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow \"Extend an object with the properties of additional objects. node.js/javascript util.\")\n* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep \"Recursively merge values in a javascript object.\")\n* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://github.com/jonschlinkert/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object \"Mixin the own and inherited properties of other objects onto the first object. Pass an empty object as the first arg to shallow clone.\")\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on December 09, 2017._\n# kind-of [](https://www.npmjs.com/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://npmjs.org/package/kind-of) [](https://travis-ci.org/jonschlinkert/kind-of)\n\n> Get the native type of a value.\n\nPlease consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save kind-of\n```\n\nInstall with [bower](https://bower.io/)\n\n```sh\n$ bower install kind-of --save\n```\n\n## Why use this?\n\n1. [it's fast](#benchmarks) | [optimizations](#optimizations)\n2. [better type checking](#better-type-checking)\n\n## Usage\n\n> es5, es6, and browser ready\n\n```js\nvar kindOf = require('kind-of');\n\nkindOf(undefined);\n//=> 'undefined'\n\nkindOf(null);\n//=> 'null'\n\nkindOf(true);\n//=> 'boolean'\n\nkindOf(false);\n//=> 'boolean'\n\nkindOf(new Buffer(''));\n//=> 'buffer'\n\nkindOf(42);\n//=> 'number'\n\nkindOf('str');\n//=> 'string'\n\nkindOf(arguments);\n//=> 'arguments'\n\nkindOf({});\n//=> 'object'\n\nkindOf(Object.create(null));\n//=> 'object'\n\nkindOf(new Test());\n//=> 'object'\n\nkindOf(new Date());\n//=> 'date'\n\nkindOf([1, 2, 3]);\n//=> 'array'\n\nkindOf(/foo/);\n//=> 'regexp'\n\nkindOf(new RegExp('foo'));\n//=> 'regexp'\n\nkindOf(new Error('error'));\n//=> 'error'\n\nkindOf(function () {});\n//=> 'function'\n\nkindOf(function * () {});\n//=> 'generatorfunction'\n\nkindOf(Symbol('str'));\n//=> 'symbol'\n\nkindOf(new Map());\n//=> 'map'\n\nkindOf(new WeakMap());\n//=> 'weakmap'\n\nkindOf(new Set());\n//=> 'set'\n\nkindOf(new WeakSet());\n//=> 'weakset'\n\nkindOf(new Int8Array());\n//=> 'int8array'\n\nkindOf(new Uint8Array());\n//=> 'uint8array'\n\nkindOf(new Uint8ClampedArray());\n//=> 'uint8clampedarray'\n\nkindOf(new Int16Array());\n//=> 'int16array'\n\nkindOf(new Uint16Array());\n//=> 'uint16array'\n\nkindOf(new Int32Array());\n//=> 'int32array'\n\nkindOf(new Uint32Array());\n//=> 'uint32array'\n\nkindOf(new Float32Array());\n//=> 'float32array'\n\nkindOf(new Float64Array());\n//=> 'float64array'\n```\n\n## Benchmarks\n\nBenchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).\n\n```bash\n# arguments (32 bytes)\n kind-of x 17,024,098 ops/sec ±1.90% (86 runs sampled)\n lib-type-of x 11,926,235 ops/sec ±1.34% (83 runs sampled)\n lib-typeof x 9,245,257 ops/sec ±1.22% (87 runs sampled)\n\n fastest is kind-of (by 161% avg)\n\n# array (22 bytes)\n kind-of x 17,196,492 ops/sec ±1.07% (88 runs sampled)\n lib-type-of x 8,838,283 ops/sec ±1.02% (87 runs sampled)\n lib-typeof x 8,677,848 ops/sec ±0.87% (87 runs sampled)\n\n fastest is kind-of (by 196% avg)\n\n# boolean (24 bytes)\n kind-of x 16,841,600 ops/sec ±1.10% (86 runs sampled)\n lib-type-of x 8,096,787 ops/sec ±0.95% (87 runs sampled)\n lib-typeof x 8,423,345 ops/sec ±1.15% (86 runs sampled)\n\n fastest is kind-of (by 204% avg)\n\n# buffer (38 bytes)\n kind-of x 14,848,060 ops/sec ±1.05% (86 runs sampled)\n lib-type-of x 3,671,577 ops/sec ±1.49% (87 runs sampled)\n lib-typeof x 8,360,236 ops/sec ±1.24% (86 runs sampled)\n\n fastest is kind-of (by 247% avg)\n\n# date (30 bytes)\n kind-of x 16,067,761 ops/sec ±1.58% (86 runs sampled)\n lib-type-of x 8,954,436 ops/sec ±1.40% (87 runs sampled)\n lib-typeof x 8,488,307 ops/sec ±1.51% (84 runs sampled)\n\n fastest is kind-of (by 184% avg)\n\n# error (36 bytes)\n kind-of x 9,634,090 ops/sec ±1.12% (89 runs sampled)\n lib-type-of x 7,735,624 ops/sec ±1.32% (86 runs sampled)\n lib-typeof x 7,442,160 ops/sec ±1.11% (90 runs sampled)\n\n fastest is kind-of (by 127% avg)\n\n# function (34 bytes)\n kind-of x 10,031,494 ops/sec ±1.27% (86 runs sampled)\n lib-type-of x 9,502,757 ops/sec ±1.17% (89 runs sampled)\n lib-typeof x 8,278,985 ops/sec ±1.08% (88 runs sampled)\n\n fastest is kind-of (by 113% avg)\n\n# null (24 bytes)\n kind-of x 18,159,808 ops/sec ±1.92% (86 runs sampled)\n lib-type-of x 12,927,635 ops/sec ±1.01% (88 runs sampled)\n lib-typeof x 7,958,234 ops/sec ±1.21% (89 runs sampled)\n\n fastest is kind-of (by 174% avg)\n\n# number (22 bytes)\n kind-of x 17,846,779 ops/sec ±0.91% (85 runs sampled)\n lib-type-of x 3,316,636 ops/sec ±1.19% (86 runs sampled)\n lib-typeof x 2,329,477 ops/sec ±2.21% (85 runs sampled)\n\n fastest is kind-of (by 632% avg)\n\n# object-plain (47 bytes)\n kind-of x 7,085,155 ops/sec ±1.05% (88 runs sampled)\n lib-type-of x 8,870,930 ops/sec ±1.06% (83 runs sampled)\n lib-typeof x 8,716,024 ops/sec ±1.05% (87 runs sampled)\n\n fastest is lib-type-of (by 112% avg)\n\n# regex (25 bytes)\n kind-of x 14,196,052 ops/sec ±1.65% (84 runs sampled)\n lib-type-of x 9,554,164 ops/sec ±1.25% (88 runs sampled)\n lib-typeof x 8,359,691 ops/sec ±1.07% (87 runs sampled)\n\n fastest is kind-of (by 158% avg)\n\n# string (33 bytes)\n kind-of x 16,131,428 ops/sec ±1.41% (85 runs sampled)\n lib-type-of x 7,273,172 ops/sec ±1.05% (87 runs sampled)\n lib-typeof x 7,382,635 ops/sec ±1.17% (85 runs sampled)\n\n fastest is kind-of (by 220% avg)\n\n# symbol (34 bytes)\n kind-of x 17,011,537 ops/sec ±1.24% (86 runs sampled)\n lib-type-of x 3,492,454 ops/sec ±1.23% (89 runs sampled)\n lib-typeof x 7,471,235 ops/sec ±2.48% (87 runs sampled)\n\n fastest is kind-of (by 310% avg)\n\n# template-strings (36 bytes)\n kind-of x 15,434,250 ops/sec ±1.46% (83 runs sampled)\n lib-type-of x 7,157,907 ops/sec ±0.97% (87 runs sampled)\n lib-typeof x 7,517,986 ops/sec ±0.92% (86 runs sampled)\n\n fastest is kind-of (by 210% avg)\n\n# undefined (29 bytes)\n kind-of x 19,167,115 ops/sec ±1.71% (87 runs sampled)\n lib-type-of x 15,477,740 ops/sec ±1.63% (85 runs sampled)\n lib-typeof x 19,075,495 ops/sec ±1.17% (83 runs sampled)\n\n fastest is lib-typeof,kind-of\n\n```\n\n## Optimizations\n\nIn 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:\n\n1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.\n2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.\n3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`\n4. There is no reason to make the code in a microlib as terse as possible, just to win points for making it shorter. It's always better to favor performant code over terse code. You will always only be using a single `require()` statement to use the library anyway, regardless of how the code is written.\n\n## Better type checking\n\nkind-of seems to be more consistently \"correct\" than other type checking libs I've looked at. For example, here are some differing results from other popular libs:\n\n### [typeof](https://github.com/CodingFu/typeof) lib\n\nIncorrectly identifies instances of custom constructors (pretty common):\n\n```js\nvar typeOf = require('typeof');\nfunction Test() {}\nconsole.log(typeOf(new Test()));\n//=> 'test'\n```\n\nReturns `object` instead of `arguments`:\n\n```js\nfunction foo() {\n console.log(typeOf(arguments)) //=> 'object'\n}\nfoo();\n```\n\n### [type-of](https://github.com/ForbesLindesay/type-of) lib\n\nIncorrectly returns `object` for generator functions, buffers, `Map`, `Set`, `WeakMap` and `WeakSet`:\n\n```js\nfunction * foo() {}\nconsole.log(typeOf(foo));\n//=> 'object'\nconsole.log(typeOf(new Buffer('')));\n//=> 'object'\nconsole.log(typeOf(new Map()));\n//=> 'object'\nconsole.log(typeOf(new Set()));\n//=> 'object'\nconsole.log(typeOf(new WeakMap()));\n//=> 'object'\nconsole.log(typeOf(new WeakSet()));\n//=> 'object'\n```\n\n## About\n\n<details>\n<summary><strong>Contributing</strong></summary>\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n</details>\n\n<details>\n<summary><strong>Running Tests</strong></summary>\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n</details>\n\n<details>\n<summary><strong>Building docs</strong></summary>\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n</details>\n\n### Related projects\n\nYou might also be interested in these projects:\n\n* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob \"Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet\")\n* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number \"Returns true if the value is a number. comprehensive tests.\")\n* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive \"Returns `true` if the value is a primitive. \")\n\n### Contributors\n\n| **Commits** | **Contributor** | \n| --- | --- |\n| 98 | [jonschlinkert](https://github.com/jonschlinkert) |\n| 3 | [aretecode](https://github.com/aretecode) |\n| 2 | [miguelmota](https://github.com/miguelmota) |\n| 1 | [dtothefp](https://github.com/dtothefp) |\n| 1 | [ianstormtaylor](https://github.com/ianstormtaylor) |\n| 1 | [ksheedlo](https://github.com/ksheedlo) |\n| 1 | [pdehaan](https://github.com/pdehaan) |\n| 1 | [laggingreflex](https://github.com/laggingreflex) |\n| 1 | [charlike-old](https://github.com/charlike-old) |\n\n### Author\n\n**Jon Schlinkert**\n\n* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on December 01, 2017._\n# amdefine\n\nA module that can be used to implement AMD's define() in Node. This allows you\nto code to the AMD API and have the module work in node programs without\nrequiring those other programs to use AMD.\n\n## Usage\n\n**1)** Update your package.json to indicate amdefine as a dependency:\n\n```javascript\n \"dependencies\": {\n \"amdefine\": \">=0.1.0\"\n }\n```\n\nThen run `npm install` to get amdefine into your project.\n\n**2)** At the top of each module that uses define(), place this code:\n\n```javascript\nif (typeof define !== 'function') { var define = require('amdefine')(module) }\n```\n\n**Only use these snippets** when loading amdefine. If you preserve the basic structure,\nwith the braces, it will be stripped out when using the [RequireJS optimizer](#optimizer).\n\nYou can add spaces, line breaks and even require amdefine with a local path, but\nkeep the rest of the structure to get the stripping behavior.\n\nAs you may know, because `if` statements in JavaScript don't have their own scope, the var\ndeclaration in the above snippet is made whether the `if` expression is truthy or not. If\nRequireJS is loaded then the declaration is superfluous because `define` is already already\ndeclared in the same scope in RequireJS. Fortunately JavaScript handles multiple `var`\ndeclarations of the same variable in the same scope gracefully.\n\nIf you want to deliver amdefine.js with your code rather than specifying it as a dependency\nwith npm, then just download the latest release and refer to it using a relative path:\n\n[Latest Version](https://github.com/jrburke/amdefine/raw/latest/amdefine.js)\n\n### amdefine/intercept\n\nConsider this very experimental.\n\nInstead of pasting the piece of text for the amdefine setup of a `define`\nvariable in each module you create or consume, you can use `amdefine/intercept`\ninstead. It will automatically insert the above snippet in each .js file loaded\nby Node.\n\n**Warning**: you should only use this if you are creating an application that\nis consuming AMD style defined()'d modules that are distributed via npm and want\nto run that code in Node.\n\nFor library code where you are not sure if it will be used by others in Node or\nin the browser, then explicitly depending on amdefine and placing the code\nsnippet above is suggested path, instead of using `amdefine/intercept`. The\nintercept module affects all .js files loaded in the Node app, and it is\ninconsiderate to modify global state like that unless you are also controlling\nthe top level app.\n\n#### Why distribute AMD-style modules via npm?\n\nnpm has a lot of weaknesses for front-end use (installed layout is not great,\nshould have better support for the `baseUrl + moduleID + '.js' style of loading,\nsingle file JS installs), but some people want a JS package manager and are\nwilling to live with those constraints. If that is you, but still want to author\nin AMD style modules to get dynamic require([]), better direct source usage and\npowerful loader plugin support in the browser, then this tool can help.\n\n#### amdefine/intercept usage\n\nJust require it in your top level app module (for example index.js, server.js):\n\n```javascript\nrequire('amdefine/intercept');\n```\n\nThe module does not return a value, so no need to assign the result to a local\nvariable.\n\nThen just require() code as you normally would with Node's require(). Any .js\nloaded after the intercept require will have the amdefine check injected in\nthe .js source as it is loaded. It does not modify the source on disk, just\nprepends some content to the text of the module as it is loaded by Node.\n\n#### How amdefine/intercept works\n\nIt overrides the `Module._extensions['.js']` in Node to automatically prepend\nthe amdefine snippet above. So, it will affect any .js file loaded by your\napp.\n\n## define() usage\n\nIt is best if you use the anonymous forms of define() in your module:\n\n```javascript\ndefine(function (require) {\n var dependency = require('dependency');\n});\n```\n\nor\n\n```javascript\ndefine(['dependency'], function (dependency) {\n\n});\n```\n\n## RequireJS optimizer integration. <a name=\"optimizer\"></name>\n\nVersion 1.0.3 of the [RequireJS optimizer](http://requirejs.org/docs/optimization.html)\nwill have support for stripping the `if (typeof define !== 'function')` check\nmentioned above, so you can include this snippet for code that runs in the\nbrowser, but avoid taking the cost of the if() statement once the code is\noptimized for deployment.\n\n## Node 0.4 Support\n\nIf you want to support Node 0.4, then add `require` as the second parameter to amdefine:\n\n```javascript\n//Only if you want Node 0.4. If using 0.5 or later, use the above snippet.\nif (typeof define !== 'function') { var define = require('amdefine')(module, require) }\n```\n\n## Limitations\n\n### Synchronous vs Asynchronous\n\namdefine creates a define() function that is callable by your code. It will\nexecute and trace dependencies and call the factory function *synchronously*,\nto keep the behavior in line with Node's synchronous dependency tracing.\n\nThe exception: calling AMD's callback-style require() from inside a factory\nfunction. The require callback is called on process.nextTick():\n\n```javascript\ndefine(function (require) {\n require(['a'], function(a) {\n //'a' is loaded synchronously, but\n //this callback is called on process.nextTick().\n });\n});\n```\n\n### Loader Plugins\n\nLoader plugins are supported as long as they call their load() callbacks\nsynchronously. So ones that do network requests will not work. However plugins\nlike [text](http://requirejs.org/docs/api.html#text) can load text files locally.\n\nThe plugin API's `load.fromText()` is **not supported** in amdefine, so this means\ntranspiler plugins like the [CoffeeScript loader plugin](https://github.com/jrburke/require-cs)\nwill not work. This may be fixable, but it is a bit complex, and I do not have\nenough node-fu to figure it out yet. See the source for amdefine.js if you want\nto get an idea of the issues involved.\n\n## Tests\n\nTo run the tests, cd to **tests** and run:\n\n```\nnode all.js\nnode all-intercept.js\n```\n\n## License\n\nNew BSD and MIT. Check the LICENSE file for all the details.\n# node-error-ex [](https://travis-ci.org/Qix-/node-error-ex) [](https://coveralls.io/r/Qix-/node-error-ex)\n> Easily subclass and customize new Error types\n\n## Examples\nTo include in your project:\n```javascript\nvar errorEx = require('error-ex');\n```\n\nTo create an error message type with a specific name (note, that `ErrorFn.name`\nwill not reflect this):\n```javascript\nvar JSONError = errorEx('JSONError');\n\nvar err = new JSONError('error');\nerr.name; //-> JSONError\nthrow err; //-> JSONError: error\n```\n\nTo add a stack line:\n```javascript\nvar JSONError = errorEx('JSONError', {fileName: errorEx.line('in %s')});\n\nvar err = new JSONError('error')\nerr.fileName = '/a/b/c/foo.json';\nthrow err; //-> (line 2)-> in /a/b/c/foo.json\n```\n\nTo append to the error message:\n```javascript\nvar JSONError = errorEx('JSONError', {fileName: errorEx.append('in %s')});\n\nvar err = new JSONError('error');\nerr.fileName = '/a/b/c/foo.json';\nthrow err; //-> JSONError: error in /a/b/c/foo.json\n```\n\n## API\n\n#### `errorEx([name], [properties])`\nCreates a new ErrorEx error type\n\n- `name`: the name of the new type (appears in the error message upon throw;\n defaults to `Error.name`)\n- `properties`: if supplied, used as a key/value dictionary of properties to\n use when building up the stack message. Keys are property names that are\n looked up on the error message, and then passed to function values.\n\t- `line`: if specified and is a function, return value is added as a stack\n entry (error-ex will indent for you). Passed the property value given\n the key.\n - `stack`: if specified and is a function, passed the value of the property\n using the key, and the raw stack lines as a second argument. Takes no\n return value (but the stack can be modified directly).\n - `message`: if specified and is a function, return value is used as new\n `.message` value upon get. Passed the property value of the property named\n by key, and the existing message is passed as the second argument as an\n array of lines (suitable for multi-line messages).\n\nReturns a constructor (Function) that can be used just like the regular Error\nconstructor.\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar BasicError = errorEx();\n\nvar NamedError = errorEx('NamedError');\n\n// --\n\nvar AdvancedError = errorEx('AdvancedError', {\n\tfoo: {\n\t\tline: function (value, stack) {\n\t\t\tif (value) {\n\t\t\t\treturn 'bar ' + value;\n\t\t\t}\n\t\t\treturn null;\n\t\t}\n\t}\n}\n\nvar err = new AdvancedError('hello, world');\nerr.foo = 'baz';\nthrow err;\n\n/*\n\tAdvancedError: hello, world\n\t bar baz\n\t at tryReadme() (readme.js:20:1)\n*/\n```\n\n#### `errorEx.line(str)`\nCreates a stack line using a delimiter\n\n> This is a helper function. It is to be used in lieu of writing a value object\n> for `properties` values.\n\n- `str`: The string to create\n - Use the delimiter `%s` to specify where in the string the value should go\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar FileError = errorEx('FileError', {fileName: errorEx.line('in %s')});\n\nvar err = new FileError('problem reading file');\nerr.fileName = '/a/b/c/d/foo.js';\nthrow err;\n\n/*\n\tFileError: problem reading file\n\t in /a/b/c/d/foo.js\n\t at tryReadme() (readme.js:7:1)\n*/\n```\n\n#### `errorEx.append(str)`\nAppends to the `error.message` string\n\n> This is a helper function. It is to be used in lieu of writing a value object\n> for `properties` values.\n\n- `str`: The string to append\n - Use the delimiter `%s` to specify where in the string the value should go\n\n```javascript\nvar errorEx = require('error-ex');\n\nvar SyntaxError = errorEx('SyntaxError', {fileName: errorEx.append('in %s')});\n\nvar err = new SyntaxError('improper indentation');\nerr.fileName = '/a/b/c/d/foo.js';\nthrow err;\n\n/*\n\tSyntaxError: improper indentation in /a/b/c/d/foo.js\n\t at tryReadme() (readme.js:7:1)\n*/\n```\n\n## License\nLicensed under the [MIT License](http://opensource.org/licenses/MIT).\nYou can find a copy of it in [LICENSE](LICENSE).\n# scss-tokenizer\nA tokenzier for Sass' SCSS syntax\n\n\n\n\n\n\n# Install\n\n```\nnpm install scss-tokenizer\n```\n\n# Usage\n\n```js\nvar scss = require('scss-tokenizer');\nscss.tokenize(css);\n```\n\n# API\n\n### `tokenize`\n\nTokenizes source `css` and returns an ordered array of tokens with positional\ndata.\n\n```js\nvar tokenizer = require('scss-tokenizer');\nvar tokens = tokenize.tokenize(css);\n```\n\nArguments:\n\n* `css (string|#toString)`: String with input CSS or any object\n with `toString()` method, like file stream.\n* `opts (object) optional`: options:\n * `from`: the path to the source CSS file. You should always set `from`,\n because it is used in map generation and in syntax error messages.\n\n# Test\n\n```\nnpm test\n```\n\n## Attribution\n\nThis project started as a fork of the [PostCSS](https://github.com/postcss/postcss) tokenizer.\n# isStream\n\n[](http://travis-ci.org/rvagg/isstream)\n\n**Test if an object is a `Stream`**\n\n[](https://nodei.co/npm/isstream/)\n\nThe missing `Stream.isStream(obj)`: determine if an object is standard Node.js `Stream`. Works for Node-core `Stream` objects (for 0.8, 0.10, 0.11, and in theory, older and newer versions) and all versions of **[readable-stream](https://github.com/isaacs/readable-stream)**.\n\n## Usage:\n\n```js\nvar isStream = require('isstream')\nvar Stream = require('stream')\n\nisStream(new Stream()) // true\n\nisStream({}) // false\n\nisStream(new Stream.Readable()) // true\nisStream(new Stream.Writable()) // true\nisStream(new Stream.Duplex()) // true\nisStream(new Stream.Transform()) // true\nisStream(new Stream.PassThrough()) // true\n```\n\n## But wait! There's more!\n\nYou can also test for `isReadable(obj)`, `isWritable(obj)` and `isDuplex(obj)` to test for implementations of Streams2 (and Streams3) base classes.\n\n```js\nvar isReadable = require('isstream').isReadable\nvar isWritable = require('isstream').isWritable\nvar isDuplex = require('isstream').isDuplex\nvar Stream = require('stream')\n\nisReadable(new Stream()) // false\nisWritable(new Stream()) // false\nisDuplex(new Stream()) // false\n\nisReadable(new Stream.Readable()) // true\nisReadable(new Stream.Writable()) // false\nisReadable(new Stream.Duplex()) // true\nisReadable(new Stream.Transform()) // true\nisReadable(new Stream.PassThrough()) // true\n\nisWritable(new Stream.Readable()) // false\nisWritable(new Stream.Writable()) // true\nisWritable(new Stream.Duplex()) // true\nisWritable(new Stream.Transform()) // true\nisWritable(new Stream.PassThrough()) // true\n\nisDuplex(new Stream.Readable()) // false\nisDuplex(new Stream.Writable()) // false\nisDuplex(new Stream.Duplex()) // true\nisDuplex(new Stream.Transform()) // true\nisDuplex(new Stream.PassThrough()) // true\n```\n\n*Reminder: when implementing your own streams, please [use **readable-stream** rather than core streams](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).*\n\n## License\n\n**isStream** is Copyright (c) 2015 Rod Vagg [@rvagg](https://twitter.com/rvagg) and licenced under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE.md file for more details.\n# fs.realpath\n\nA backwards-compatible fs.realpath for Node v6 and above\n\nIn Node v6, the JavaScript implementation of fs.realpath was replaced\nwith a faster (but less resilient) native implementation. That raises\nnew and platform-specific errors and cannot handle long or excessively\nsymlink-looping paths.\n\nThis module handles those cases by detecting the new errors and\nfalling back to the JavaScript implementation. On versions of Node\nprior to v6, it has no effect.\n\n## USAGE\n\n```js\nvar rp = require('fs.realpath')\n\n// async version\nrp.realpath(someLongAndLoopingPath, function (er, real) {\n // the ELOOP was handled, but it was a bit slower\n})\n\n// sync version\nvar real = rp.realpathSync(someLongAndLoopingPath)\n\n// monkeypatch at your own risk!\n// This replaces the fs.realpath/fs.realpathSync builtins\nrp.monkeypatch()\n\n// un-do the monkeypatching\nrp.unmonkeypatch()\n```\n# type-is\n\n[![NPM Version][npm-image]][npm-url]\n[![NPM Downloads][downloads-image]][downloads-url]\n[![Node.js Version][node-version-image]][node-version-url]\n[![Build Status][travis-image]][travis-url]\n[![Test Coverage][coveralls-image]][coveralls-url]\n\nInfer the content-type of a request.\n\n### Install\n\nThis is a [Node.js](https://nodejs.org/en/) module available through the\n[npm registry](https://www.npmjs.com/). Installation is done using the\n[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):\n\n```sh\n$ npm install type-is\n```\n\n## API\n\n```js\nvar http = require('http')\nvar typeis = require('type-is')\n\nhttp.createServer(function (req, res) {\n var istext = typeis(req, ['text/*'])\n res.end('you ' + (istext ? 'sent' : 'did not send') + ' me text')\n})\n```\n\n### type = typeis(request, types)\n\n`request` is the node HTTP request. `types` is an array of types.\n\n<!-- eslint-disable no-undef -->\n\n```js\n// req.headers.content-type = 'application/json'\n\ntypeis(req, ['json']) // 'json'\ntypeis(req, ['html', 'json']) // 'json'\ntypeis(req, ['application/*']) // 'application/json'\ntypeis(req, ['application/json']) // 'application/json'\n\ntypeis(req, ['html']) // false\n```\n\n### typeis.hasBody(request)\n\nReturns a Boolean if the given `request` has a body, regardless of the\n`Content-Type` header.\n\nHaving a body has no relation to how large the body is (it may be 0 bytes).\nThis is similar to how file existence works. If a body does exist, then this\nindicates that there is data to read from the Node.js request stream.\n\n<!-- eslint-disable no-undef -->\n\n```js\nif (typeis.hasBody(req)) {\n // read the body, since there is one\n\n req.on('data', function (chunk) {\n // ...\n })\n}\n```\n\n### type = typeis.is(mediaType, types)\n\n`mediaType` is the [media type](https://tools.ietf.org/html/rfc6838) string. `types` is an array of types.\n\n<!-- eslint-disable no-undef -->\n\n```js\nvar mediaType = 'application/json'\n\ntypeis.is(mediaType, ['json']) // 'json'\ntypeis.is(mediaType, ['html', 'json']) // 'json'\ntypeis.is(mediaType, ['application/*']) // 'application/json'\ntypeis.is(mediaType, ['application/json']) // 'application/json'\n\ntypeis.is(mediaType, ['html']) // false\n```\n\n### Each type can be:\n\n- An extension name such as `json`. This name will be returned if matched.\n- A mime type such as `application/json`.\n- A mime type with a wildcard such as `*/*` or `*/json` or `application/*`. The full mime type will be returned if matched.\n- A suffix such as `+json`. This can be combined with a wildcard such as `*/vnd+json` or `application/*+json`. The full mime type will be returned if matched.\n\n`false` will be returned if no type matches or the content type is invalid.\n\n`null` will be returned if the request does not have a body.\n\n## Examples\n\n### Example body parser\n\n```js\nvar express = require('express')\nvar typeis = require('type-is')\n\nvar app = express()\n\napp.use(function bodyParser (req, res, next) {\n if (!typeis.hasBody(req)) {\n return next()\n }\n\n switch (typeis(req, ['urlencoded', 'json', 'multipart'])) {\n case 'urlencoded':\n // parse urlencoded body\n throw new Error('implement urlencoded body parsing')\n case 'json':\n // parse json body\n throw new Error('implement json body parsing')\n case 'multipart':\n // parse multipart body\n throw new Error('implement multipart body parsing')\n default:\n // 415 error code\n res.statusCode = 415\n res.end()\n break\n }\n})\n```\n\n## License\n\n[MIT](LICENSE)\n\n[npm-image]: https://img.shields.io/npm/v/type-is.svg\n[npm-url]: https://npmjs.org/package/type-is\n[node-version-image]: https://img.shields.io/node/v/type-is.svg\n[node-version-url]: https://nodejs.org/en/download/\n[travis-image]: https://img.shields.io/travis/jshttp/type-is/master.svg\n[travis-url]: https://travis-ci.org/jshttp/type-is\n[coveralls-image]: https://img.shields.io/coveralls/jshttp/type-is/master.svg\n[coveralls-url]: https://coveralls.io/r/jshttp/type-is?branch=master\n[downloads-image]: https://img.shields.io/npm/dm/type-is.svg\n[downloads-url]: https://npmjs.org/package/type-is\n#utf8 detector\n\nDetect if a Buffer is utf8 encoded. \nIt need The minimum amount of bytes is 4.\n\n```javascript\n var fs = require('fs');\n var isUtf8 = require('is-utf8');\n var ansi = fs.readFileSync('ansi.txt');\n var utf8 = fs.readFileSync('utf8.txt');\n \n console.log('ansi.txt is utf8: '+isUtf8(ansi)); //false\n console.log('utf8.txt is utf8: '+isUtf8(utf8)); //true\n```\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n# node-errno\n\n> Better [libuv](https://github.com/libuv/libuv)/[Node.js](https://nodejs.org)/[io.js](https://iojs.org) error handling & reporting. Available in npm as *errno*.\n\n[](https://www.npmjs.com/package/errno)\n[](http://travis-ci.org/rvagg/node-errno)\n[](https://www.npmjs.com/package/errno)\n\n* [errno exposed](#errnoexposed)\n* [Custom errors](#customerrors)\n\n<a name=\"errnoexposed\"></a>\n## errno exposed\n\nEver find yourself needing more details about Node.js errors? Me too, so *node-errno* contains the errno mappings direct from libuv so you can use them in your code.\n\n**By errno:**\n\n```js\nrequire('errno').errno[3]\n// → {\n// \"errno\": 3,\n// \"code\": \"EACCES\",\n// \"description\": \"permission denied\"\n// }\n```\n\n**By code:**\n\n```js\nrequire('errno').code.ENOTEMPTY\n// → {\n// \"errno\": 53,\n// \"code\": \"ENOTEMPTY\",\n// \"description\": \"directory not empty\"\n// }\n```\n\n**Make your errors more descriptive:**\n\n```js\nvar errno = require('errno')\n\nfunction errmsg(err) {\n var str = 'Error: '\n // if it's a libuv error then get the description from errno\n if (errno.errno[err.errno])\n str += errno.errno[err.errno].description\n else\n str += err.message\n\n // if it's a `fs` error then it'll have a 'path' property\n if (err.path)\n str += ' [' + err.path + ']'\n\n return str\n}\n\nvar fs = require('fs')\n\nfs.readFile('thisisnotarealfile.txt', function (err, data) {\n if (err)\n console.log(errmsg(err))\n})\n```\n\n**Use as a command line tool:**\n\n```\n~ $ errno 53\n{\n \"errno\": 53,\n \"code\": \"ENOTEMPTY\",\n \"description\": \"directory not empty\"\n}\n~ $ errno EROFS\n{\n \"errno\": 56,\n \"code\": \"EROFS\",\n \"description\": \"read-only file system\"\n}\n~ $ errno foo\nNo such errno/code: \"foo\"\n```\n\nSupply no arguments for the full list. Error codes are processed case-insensitive.\n\nYou will need to install with `npm install errno -g` if you want the `errno` command to be available without supplying a full path to the node_modules installation.\n\n<a name=\"customerrors\"></a>\n## Custom errors\n\nUse `errno.custom.createError()` to create custom `Error` objects to throw around in your Node.js library. Create error hierarchies so `instanceof` becomes a useful tool in tracking errors. Call-stack is correctly captured at the time you create an instance of the error object, plus a `cause` property will make available the original error object if you pass one in to the constructor.\n\n```js\nvar create = require('errno').custom.createError\nvar MyError = create('MyError') // inherits from Error\nvar SpecificError = create('SpecificError', MyError) // inherits from MyError\nvar OtherError = create('OtherError', MyError)\n\n// use them!\nif (condition) throw new SpecificError('Eeek! Something bad happened')\n\nif (err) return callback(new OtherError(err))\n```\n\nAlso available is a `errno.custom.FilesystemError` with in-built access to errno properties:\n\n```js\nfs.readFile('foo', function (err, data) {\n if (err) return callback(new errno.custom.FilesystemError(err))\n // do something else\n})\n```\n\nThe resulting error object passed through the callback will have the following properties: `code`, `errno`, `path` and `message` will contain a descriptive human-readable message.\n\n## Contributors\n\n* [bahamas10](https://github.com/bahamas10) (Dave Eddy) - Added CLI\n* [ralphtheninja](https://github.com/ralphtheninja) (Lars-Magnus Skog)\n\n## Copyright & Licence\n\n*Copyright (c) 2012-2015 [Rod Vagg](https://github.com/rvagg) ([@rvagg](https://twitter.com/rvagg))*\n\nMade available under the MIT licence:\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is furnished\nto do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n# util\n\n[](https://travis-ci.org/defunctzombie/node-util)\n\nnode.js [util](http://nodejs.org/api/util.html) module as a module\n\n## install via [npm](npmjs.org)\n\n```shell\nnpm install util\n```\n\n## browser support\n\nThis module also works in modern browsers. If you need legacy browser support you will need to polyfill ES5 features.\n# is-extendable [](http://badge.fury.io/js/is-extendable)\n\n> Returns true if a value is any of the object types: array, regexp, plain object, function or date. This is useful for determining if a value can be extended, e.g. \"can the value have keys?\"\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i is-extendable --save\n```\n\n## Usage\n\n```js\nvar isExtendable = require('is-extendable');\n```\n\nReturns true if the value is any of the following:\n\n* `array`\n* `regexp`\n* `plain object`\n* `function`\n* `date`\n* `error`\n\n## Notes\n\nAll objects in JavaScript can have keys, but it's a pain to check for this, since we ether need to verify that the value is not `null` or `undefined` and:\n\n* the value is not a primitive, or\n* that the object is an `object`, `function`\n\nAlso note that an `extendable` object is not the same as an [extensible object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible), which is one that (in es6) is not sealed, frozen, or marked as non-extensible using `preventExtensions`.\n\n## Related projects\n\n* [assign-deep](https://github.com/jonschlinkert/assign-deep): Deeply assign the enumerable properties of source objects to a destination object.\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [is-equal-shallow](https://github.com/jonschlinkert/is-equal-shallow): Does a shallow comparison of two objects, returning false if the keys or values differ.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-extendable/issues/new)\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on July 04, 2015._\n# Cyclist\n\nCyclist is an efficient [cyclic list](http://en.wikipedia.org/wiki/Circular_buffer) implemention for Javascript.\nIt is available through npm\n\n\tnpm install cyclist\n\n## What?\n\nCyclist allows you to create a list of fixed size that is cyclic.\nIn a cyclist list the element following the last one is the first one.\nThis property can be really useful when for example trying to order data\npackets that can arrive out of order over a network stream.\n\n## Usage\n\n``` js\nvar cyclist = require('cyclist');\nvar list = cyclist(4); // if size (4) is not a power of 2 it will be the follwing power of 2\n // this buffer can now hold 4 elements in total\n\nlist.put(42, 'hello 42'); // store something and index 42\nlist.put(43, 'hello 43'); // store something and index 43\n\nconsole.log(list.get(42)); // prints hello 42\nconsole.log(list.get(46)); // prints hello 42 again since 46 - 42 == list.size\n```\n\n## API\n\n* `cyclist(size)` creates a new buffer\n* `cyclist#get(index)` get an object stored in the buffer\n* `cyclist#put(index,value)` insert an object into the buffer\n* `cyclist#del(index)` delete an object from an index\n* `cyclist#size` property containing current size of buffer\n\n## License\n\nMIT\n<div align=\"center\">\n <a href=\"https://github.com/webpack/webpack\">\n <img width=\"200\" height=\"200\" src=\"https://webpack.js.org/assets/icon-square-big.svg\">\n </a>\n</div>\n\n[![npm][npm]][npm-url]\n[![node][node]][node-url]\n[![deps][deps]][deps-url]\n[![tests][tests]][tests-url]\n[![coverage][cover]][cover-url]\n[![chat][chat]][chat-url]\n\n# webpack-log\n\nA common logging module for the Webpack ecosystem. `webpack-log` leverages\n[`loglevelnext`][loglevelnext].\n\n## Getting Started\n\nFirst thing's first, install the module:\n\n```console\nnpm install webpack-log --save\n```\n\n_Note: We do not recommend installing this module globally._\n\n## Requirements\n\n`webpack-log` requires Node v6 or higher.\n\n## Usage\n\n```js\nconst weblog = require('webpack-log');\nconst log = weblog({ name: 'wds' }) // webpack-dev-server\n\nlog.info('Server Starting');\n```\n\nThe code above will produce:\n\n\n\n## Options\n\nThe default export (`function`) will return a logger, given an `options` Object.\nThe following is a property reference for the Object.\n\n_Note: the logger returned is unique by default, due to the nature of the `webpack`\necosystem. Please reference the [`unique`](#unique) option below for disabling\nthis feature and to force caching._\n\n### level\n\nType: `String` \nDefault: `'info'`\n\nSpecifies the level the logger should use. A logger will not produce output for\nany log level _beneath_ the specified level. Available levels and order are:\n\n```js\n[\n 'trace',\n 'debug',\n 'info',\n 'warn',\n 'error',\n 'silent'\n]\n```\n\n_Note: The level names shown above correspond to the available logging methods,\nwith the notable exception of the `silent` level._\n\n### name\n\n_Required_ \nType: `String` \nDefault: `'<unknown>'`\n\nSpecifies the name of the log to create. This property is required, and used to\ndifferentiate between loggers when `webpack-log` is used in multiple projects\nexecuting in the same process space.\n\n### timestamp\n\nType: `Boolean` \nDefault: `false`\n\nIf `true`, instructs the logger to display a timestamp for log output, preceding\nall other data.\n\n### unique\n\nType: `Boolean` \nDefault: `true`\n\nIf `false`, instructs the logger to used cached versions of a log with the same\nname. Due to the nature of the `webpack` ecosystem and multiple plugin/loader\nuse in the same process space, loggers are created as unique instances by default.\nBy passing `false` for this property, the module is instructed to cache the\nrequested logger.\n\n## Contributing\n\nWe welcome your contributions! Please have a read of [CONTRIBUTING.md](CONTRIBUTING.md) for more information on how to get involved.\n\n## License\n\n#### [MIT](./LICENSE)\n\n[npm]: https://img.shields.io/npm/v/webpack-log.svg\n[npm-url]: https://npmjs.com/package/webpack-log\n\n[node]: https://img.shields.io/node/v/webpack-log.svg\n[node-url]: https://nodejs.org\n\n[deps]: https://david-dm.org/webpack-contrib/webpack-log.svg\n[deps-url]: https://david-dm.org/webpack-contrib/webpack-log\n\n[tests]: http://img.shields.io/travis/webpack-contrib/webpack-log.svg\n[tests-url]: https://travis-ci.org/webpack-contrib/webpack-log\n\n[cover]: https://codecov.io/gh/webpack-contrib/webpack-log/branch/master/graph/badge.svg\n[cover-url]: https://codecov.io/gh/webpack-contrib/webpack-log\n\n[chat]: https://badges.gitter.im/webpack/webpack.svg\n[chat-url]: https://gitter.im/webpack/webpack\n\n[loglevelnext]: https://github.com/shellscape/loglevelnext\n# extend-shallow [](http://badge.fury.io/js/extend-shallow) [](https://travis-ci.org/jonschlinkert/extend-shallow)\n\n> Extend an object with the properties of additional objects. node.js/javascript util.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/)\n\n```sh\n$ npm i extend-shallow --save\n```\n\n## Usage\n\n```js\nvar extend = require('extend-shallow');\n\nextend({a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\nPass an empty object to shallow clone:\n\n```js\nvar obj = {};\nextend(obj, {a: 'b'}, {c: 'd'})\n//=> {a: 'b', c: 'd'}\n```\n\n## Related\n\n* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.\n* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)\n* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)\n* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.\n* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.\n* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.\n\n## Running tests\n\nInstall dev dependencies:\n\n```sh\n$ npm i -d && npm test\n```\n\n## Author\n\n**Jon Schlinkert**\n\n+ [github/jonschlinkert](https://github.com/jonschlinkert)\n+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)\n\n## License\n\nCopyright © 2015 Jon Schlinkert\nReleased under the MIT license.\n\n***\n\n_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._\n[](https://travis-ci.org/css-modules/icss-utils)\n\n# ICSS Utils\n\n## replaceSymbols\n\nGoverns the way tokens are searched & replaced during the linking stage of ICSS loading.\n\nThis is broken into its own module in case the behaviour needs to be replicated in other PostCSS plugins\n(i.e. [CSS Modules Values](https://github.com/css-modules/postcss-modules-values))\n\n```js\nimport { replaceSymbols, replaceValueSymbols } from \"icss-utils\";\n\nreplaceSymbols(css, replacements);\nreplaceValueSymbols(string, replacements);\n```\n\nWhere:\n\n- `css` is the PostCSS tree you're working with\n- `replacements` is an JS object of `symbol: \"replacement\"` pairs, where all occurrences of `symbol` are replaced with `replacement`.\n\nA symbol is a string of alphanumeric, `-` or `_` characters. A replacement can be any string. They are replaced in the following places:\n\n- In the value of a declaration, i.e. `color: my_symbol;` or `box-shadow: 0 0 blur spread shadow-color`\n- In a media expression i.e. `@media small {}` or `@media screen and not-large {}`\n\n## extractICSS(css, removeRules = true)\n\nExtracts and remove (if removeRules is equal true) from PostCSS tree `:import` and `:export` statements.\n\n```js\nimport postcss from \"postcss\";\nimport { extractICSS } from \"icss-utils\";\n\nconst css = postcss.parse(`\n :import(colors) {\n a: b;\n }\n :export {\n c: d;\n }\n`);\n\nextractICSS(css);\n/*\n {\n icssImports: {\n colors: {\n a: 'b'\n }\n },\n icssExports: {\n c: 'd'\n }\n }\n*/\n```\n\n## createICSSRules(icssImports, icssExports)\n\nConverts icss imports and exports definitions to postcss ast\n\n```js\ncreateICSSRules(\n {\n colors: {\n a: \"b\"\n }\n },\n {\n c: \"d\"\n }\n);\n```\n\n## License\n\nISC\n\n---\n\nGlen Maddern, Bogdan Chadkin and Evilebottnawi 2015-present.\n# is-extendable [](https://www.npmjs.com/package/is-extendable) [](https://npmjs.org/package/is-extendable) [](https://npmjs.org/package/is-extendable) [](https://travis-ci.org/jonschlinkert/is-extendable)\n\n> Returns true if a value is a plain object, array or function.\n\n## Install\n\nInstall with [npm](https://www.npmjs.com/):\n\n```sh\n$ npm install --save is-extendable\n```\n\n## Usage\n\n```js\nvar isExtendable = require('is-extendable');\n```\n\nReturns true if the value is any of the following:\n\n* array\n* plain object\n* function\n\n## Notes\n\nAll objects in JavaScript can have keys, but it's a pain to check for this, since we ether need to verify that the value is not `null` or `undefined` and:\n\n* the value is not a primitive, or\n* that the object is a plain object, function or array\n\nAlso note that an `extendable` object is not the same as an [extensible object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible), which is one that (in es6) is not sealed, frozen, or marked as non-extensible using `preventExtensions`.\n\n## Release history\n\n### v1.0.0 - 2017/07/20\n\n**Breaking changes**\n\n* No longer considers date, regex or error objects to be extendable\n\n## About\n\n### Related projects\n\n* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep \"Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.\")\n* [is-equal-shallow](https://www.npmjs.com/package/is-equal-shallow): Does a shallow comparison of two objects, returning false if the keys or values differ. | [homepage](https://github.com/jonschlinkert/is-equal-shallow \"Does a shallow comparison of two objects, returning false if the keys or values differ.\")\n* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object \"Returns true if an object was created by the `Object` constructor.\")\n* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject \"Returns true if the value is an object and not an array or null.\")\n* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of \"Get the native type of a value.\")\n\n### Contributing\n\nPull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).\n\n### Building docs\n\n_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_\n\nTo generate the readme, run the following command:\n\n```sh\n$ npm install -g verbose/verb#dev verb-generate-readme && verb\n```\n\n### Running tests\n\nRunning and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:\n\n```sh\n$ npm install && npm test\n```\n\n### Author\n\n**Jon Schlinkert**\n\n* [github/jonschlinkert](https://github.com/jonschlinkert)\n* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)\n\n### License\n\nCopyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).\nReleased under the [MIT License](LICENSE).\n\n***\n\n_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 20, 2017._\n# fs-write-stream-atomic\n\nLike `fs.createWriteStream(...)`, but atomic.\n\nWrites to a tmp file and does an atomic `fs.rename` to move it into\nplace when it's done.\n\nFirst rule of debugging: **It's always a race condition.**\n\n## USAGE\n\n```javascript\nvar fsWriteStreamAtomic = require('fs-write-stream-atomic')\n// options are optional.\nvar write = fsWriteStreamAtomic('output.txt', options)\nvar read = fs.createReadStream('input.txt')\nread.pipe(write)\n\n// When the write stream emits a 'finish' or 'close' event,\n// you can be sure that it is moved into place, and contains\n// all the bytes that were written to it, even if something else\n// was writing to `output.txt` at the same time.\n```\n\n### `fsWriteStreamAtomic(filename, [options])`\n\n* `filename` {String} The file we want to write to\n* `options` {Object}\n * `chown` {Object} User and group to set ownership after write\n * `uid` {Number}\n * `gid` {Number}\n * `encoding` {String} default = 'utf8'\n * `mode` {Number} default = `0666`\n * `flags` {String} default = `'w'`\n# Request - Simplified HTTP client\n\n[](https://nodei.co/npm/request/)\n\n[](https://travis-ci.org/request/request)\n[](https://codecov.io/github/request/request?branch=master)\n[](https://coveralls.io/r/request/request)\n[](https://david-dm.org/request/request)\n[](https://snyk.io/test/npm/request)\n[](https://gitter.im/request/request?utm_source=badge)\n\n## Super simple to use\n\nRequest is designed to be the simplest way possible to make http calls. It supports HTTPS and follows redirects by default.\n\n```js\nvar request = require('request');\nrequest('http://www.google.com', function (error, response, body) {\n console.log('error:', error); // Print the error if one occurred\n console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received\n console.log('body:', body); // Print the HTML for the Google homepage.\n});\n```\n\n## Table of contents\n\n- [Streaming](#streaming)\n- [Promises & Async/Await](#promises--asyncawait)\n- [Forms](#forms)\n- [HTTP Authentication](#http-authentication)\n- [Custom HTTP Headers](#custom-http-headers)\n- [OAuth Signing](#oauth-signing)\n- [Proxies](#proxies)\n- [Unix Domain Sockets](#unix-domain-sockets)\n- [TLS/SSL Protocol](#tlsssl-protocol)\n- [Support for HAR 1.2](#support-for-har-12)\n- [**All Available Options**](#requestoptions-callback)\n\nRequest also offers [convenience methods](#convenience-methods) like\n`request.defaults` and `request.post`, and there are\nlots of [usage examples](#examples) and several\n[debugging techniques](#debugging).\n\n---\n\n## Streaming\n\nYou can stream any response to a file stream.\n\n```js\nrequest('http://google.com/doodle.png').pipe(fs.createWriteStream('doodle.png'))\n```\n\nYou can also stream a file to a PUT or POST request. This method will also check the file extension against a mapping of file extensions to content-types (in this case `application/json`) and use the proper `content-type` in the PUT request (if the headers don’t already provide one).\n\n```js\nfs.createReadStream('file.json').pipe(request.put('http://mysite.com/obj.json'))\n```\n\nRequest can also `pipe` to itself. When doing so, `content-type` and `content-length` are preserved in the PUT headers.\n\n```js\nrequest.get('http://google.com/img.png').pipe(request.put('http://mysite.com/img.png'))\n```\n\nRequest emits a \"response\" event when a response is received. The `response` argument will be an instance of [http.IncomingMessage](https://nodejs.org/api/http.html#http_class_http_incomingmessage).\n\n```js\nrequest\n .get('http://google.com/img.png')\n .on('response', function(response) {\n console.log(response.statusCode) // 200\n console.log(response.headers['content-type']) // 'image/png'\n })\n .pipe(request.put('http://mysite.com/img.png'))\n```\n\nTo easily handle errors when streaming requests, listen to the `error` event before piping:\n\n```js\nrequest\n .get('http://mysite.com/doodle.png')\n .on('error', function(err) {\n console.log(err)\n })\n .pipe(fs.createWriteStream('doodle.png'))\n```\n\nNow let’s get fancy.\n\n```js\nhttp.createServer(function (req, resp) {\n if (req.url === '/doodle.png') {\n if (req.method === 'PUT') {\n req.pipe(request.put('http://mysite.com/doodle.png'))\n } else if (req.method === 'GET' || req.method === 'HEAD') {\n request.get('http://mysite.com/doodle.png').pipe(resp)\n }\n }\n})\n```\n\nYou can also `pipe()` from `http.ServerRequest` instances, as well as to `http.ServerResponse` instances. The HTTP method, headers, and entity-body data will be sent. Which means that, if you don't really care about security, you can do:\n\n```js\nhttp.createServer(function (req, resp) {\n if (req.url === '/doodle.png') {\n var x = request('http://mysite.com/doodle.png')\n req.pipe(x)\n x.pipe(resp)\n }\n})\n```\n\nAnd since `pipe()` returns the destination stream in ≥ Node 0.5.x you can do one line proxying. :)\n\n```js\nreq.pipe(request('http://mysite.com/doodle.png')).pipe(resp)\n```\n\nAlso, none of this new functionality conflicts with requests previous features, it just expands them.\n\n```js\nvar r = request.defaults({'proxy':'http://localproxy.com'})\n\nhttp.createServer(function (req, resp) {\n if (req.url === '/doodle.png') {\n r.get('http://google.com/doodle.png').pipe(resp)\n }\n})\n```\n\nYou can still use intermediate proxies, the requests will still follow HTTP forwards, etc.\n\n[back to top](#table-of-contents)\n\n---\n\n## Promises & Async/Await\n\n`request` supports both streaming and callback interfaces natively. If you'd like `request` to return a Promise instead, you can use an alternative interface wrapper for `request`. These wrappers can be useful if you prefer to work with Promises, or if you'd like to use `async`/`await` in ES2017.\n\nSeveral alternative interfaces are provided by the request team, including:\n- [`request-promise`](https://github.com/request/request-promise) (uses [Bluebird](https://github.com/petkaantonov/bluebird) Promises)\n- [`request-promise-native`](https://github.com/request/request-promise-native) (uses native Promises)\n- [`request-promise-any`](https://github.com/request/request-promise-any) (uses [any-promise](https://www.npmjs.com/package/any-promise) Promises)\n\n[back to top](#table-of-contents)\n\n---\n\n## Forms\n\n`request` supports `application/x-www-form-urlencoded` and `multipart/form-data` form uploads. For `multipart/related` refer to the `multipart` API.\n\n#### application/x-www-form-urlencoded (URL-Encoded Forms)\n\nURL-encoded forms are simple.\n\n```js\nrequest.post('http://service.com/upload', {form:{key:'value'}})\n// or\nrequest.post('http://service.com/upload').form({key:'value'})\n// or\nrequest.post({url:'http://service.com/upload', form: {key:'value'}}, function(err,httpResponse,body){ /* ... */ })\n```\n\n#### multipart/form-data (Multipart Form Uploads)\n\nFor `multipart/form-data` we use the [form-data](https://github.com/form-data/form-data) library by [@felixge](https://github.com/felixge). For the most cases, you can pass your upload form data via the `formData` option.\n\n```js\nvar formData = {\n // Pass a simple key-value pair\n my_field: 'my_value',\n // Pass data via Buffers\n my_buffer: Buffer.from([1, 2, 3]),\n // Pass data via Streams\n my_file: fs.createReadStream(__dirname + '/unicycle.jpg'),\n // Pass multiple values /w an Array\n attachments: [\n fs.createReadStream(__dirname + '/attachment1.jpg'),\n fs.createReadStream(__dirname + '/attachment2.jpg')\n ],\n // Pass optional meta-data with an 'options' object with style: {value: DATA, options: OPTIONS}\n // Use case: for some types of streams, you'll need to provide \"file\"-related information manually.\n // See the `form-data` README for more information about options: https://github.com/form-data/form-data\n custom_file: {\n value: fs.createReadStream('/dev/urandom'),\n options: {\n filename: 'topsecret.jpg',\n contentType: 'image/jpeg'\n }\n }\n};\nrequest.post({url:'http://service.com/upload', formData: formData}, function optionalCallback(err, httpResponse, body) {\n if (err) {\n return console.error('upload failed:', err);\n }\n console.log('Upload successful! Server responded with:', body);\n});\n```\n\nFor advanced cases, you can access the form-data object itself via `r.form()`. This can be modified until the request is fired on the next cycle of the event-loop. (Note that this calling `form()` will clear the currently set form data for that request.)\n\n```js\n// NOTE: Advanced use-case, for normal use see 'formData' usage above\nvar r = request.post('http://service.com/upload', function optionalCallback(err, httpResponse, body) {...})\nvar form = r.form();\nform.append('my_field', 'my_value');\nform.append('my_buffer', Buffer.from([1, 2, 3]));\nform.append('custom_file', fs.createReadStream(__dirname + '/unicycle.jpg'), {filename: 'unicycle.jpg'});\n```\nSee the [form-data README](https://github.com/form-data/form-data) for more information & examples.\n\n#### multipart/related\n\nSome variations in different HTTP implementations require a newline/CRLF before, after, or both before and after the boundary of a `multipart/related` request (using the multipart option). This has been observed in the .NET WebAPI version 4.0. You can turn on a boundary preambleCRLF or postamble by passing them as `true` to your request options.\n\n```js\n request({\n method: 'PUT',\n preambleCRLF: true,\n postambleCRLF: true,\n uri: 'http://service.com/upload',\n multipart: [\n {\n 'content-type': 'application/json',\n body: JSON.stringify({foo: 'bar', _attachments: {'message.txt': {follows: true, length: 18, 'content_type': 'text/plain' }}})\n },\n { body: 'I am an attachment' },\n { body: fs.createReadStream('image.png') }\n ],\n // alternatively pass an object containing additional options\n multipart: {\n chunked: false,\n data: [\n {\n 'content-type': 'application/json',\n body: JSON.stringify({foo: 'bar', _attachments: {'message.txt': {follows: true, length: 18, 'content_type': 'text/plain' }}})\n },\n { body: 'I am an attachment' }\n ]\n }\n },\n function (error, response, body) {\n if (error) {\n return console.error('upload failed:', error);\n }\n console.log('Upload successful! Server responded with:', body);\n })\n```\n\n[back to top](#table-of-contents)\n\n---\n\n## HTTP Authentication\n\n```js\nrequest.get('http://some.server.com/').auth('username', 'password', false);\n// or\nrequest.get('http://some.server.com/', {\n 'auth': {\n 'user': 'username',\n 'pass': 'password',\n 'sendImmediately': false\n }\n});\n// or\nrequest.get('http://some.server.com/').auth(null, null, true, 'bearerToken');\n// or\nrequest.get('http://some.server.com/', {\n 'auth': {\n 'bearer': 'bearerToken'\n }\n});\n```\n\nIf passed as an option, `auth` should be a hash containing values:\n\n- `user` || `username`\n- `pass` || `password`\n- `sendImmediately` (optional)\n- `bearer` (optional)\n\nThe method form takes parameters\n`auth(username, password, sendImmediately, bearer)`.\n\n`sendImmediately` defaults to `true`, which causes a basic or bearer\nauthentication header to be sent. If `sendImmediately` is `false`, then\n`request` will retry with a proper authentication header after receiving a\n`401` response from the server (which must contain a `WWW-Authenticate` header\nindicating the required authentication method).\n\nNote that you can also specify basic authentication using the URL itself, as\ndetailed in [RFC 1738](http://www.ietf.org/rfc/rfc1738.txt). Simply pass the\n`user:password` before the host with an `@` sign:\n\n```js\nvar username = 'username',\n password = 'password',\n url = 'http://' + username + ':' + password + '@some.server.com';\n\nrequest({url: url}, function (error, response, body) {\n // Do more stuff with 'body' here\n});\n```\n\nDigest authentication is supported, but it only works with `sendImmediately`\nset to `false`; otherwise `request` will send basic authentication on the\ninitial request, which will probably cause the request to fail.\n\nBearer authentication is supported, and is activated when the `bearer` value is\navailable. The value may be either a `String` or a `Function` returning a\n`String`. Using a function to supply the bearer token is particularly useful if\nused in conjunction with `defaults` to allow a single function to supply the\nlast known token at the time of sending a request, or to compute one on the fly.\n\n[back to top](#table-of-contents)\n\n---\n\n## Custom HTTP Headers\n\nHTTP Headers, such as `User-Agent`, can be set in the `options` object.\nIn the example below, we call the github API to find out the number\nof stars and forks for the request repository. This requires a\ncustom `User-Agent` header as well as https.\n\n```js\nvar request = require('request');\n\nvar options = {\n url: 'https://api.github.com/repos/request/request',\n headers: {\n 'User-Agent': 'request'\n }\n};\n\nfunction callback(error, response, body) {\n if (!error && response.statusCode == 200) {\n var info = JSON.parse(body);\n console.log(info.stargazers_count + \" Stars\");\n console.log(info.forks_count + \" Forks\");\n }\n}\n\nrequest(options, callback);\n```\n\n[back to top](#table-of-contents)\n\n---\n\n## OAuth Signing\n\n[OAuth version 1.0](https://tools.ietf.org/html/rfc5849) is supported. The\ndefault signing algorithm is\n[HMAC-SHA1](https://tools.ietf.org/html/rfc5849#section-3.4.2):\n\n```js\n// OAuth1.0 - 3-legged server side flow (Twitter example)\n// step 1\nvar qs = require('querystring')\n , oauth =\n { callback: 'http://mysite.com/callback/'\n , consumer_key: CONSUMER_KEY\n , consumer_secret: CONSUMER_SECRET\n }\n , url = 'https://api.twitter.com/oauth/request_token'\n ;\nrequest.post({url:url, oauth:oauth}, function (e, r, body) {\n // Ideally, you would take the body in the response\n // and construct a URL that a user clicks on (like a sign in button).\n // The verifier is only available in the response after a user has\n // verified with twitter that they are authorizing your app.\n\n // step 2\n var req_data = qs.parse(body)\n var uri = 'https://api.twitter.com/oauth/authenticate'\n + '?' + qs.stringify({oauth_token: req_data.oauth_token})\n // redirect the user to the authorize uri\n\n // step 3\n // after the user is redirected back to your server\n var auth_data = qs.parse(body)\n , oauth =\n { consumer_key: CONSUMER_KEY\n , consumer_secret: CONSUMER_SECRET\n , token: auth_data.oauth_token\n , token_secret: req_data.oauth_token_secret\n , verifier: auth_data.oauth_verifier\n }\n , url = 'https://api.twitter.com/oauth/access_token'\n ;\n request.post({url:url, oauth:oauth}, function (e, r, body) {\n // ready to make signed requests on behalf of the user\n var perm_data = qs.parse(body)\n , oauth =\n { consumer_key: CONSUMER_KEY\n , consumer_secret: CONSUMER_SECRET\n , token: perm_data.oauth_token\n , token_secret: perm_data.oauth_token_secret\n }\n , url = 'https://api.twitter.com/1.1/users/show.json'\n , qs =\n { screen_name: perm_data.screen_name\n , user_id: perm_data.user_id\n }\n ;\n request.get({url:url, oauth:oauth, qs:qs, json:true}, function (e, r, user) {\n console.log(user)\n })\n })\n})\n```\n\nFor [RSA-SHA1 signing](https://tools.ietf.org/html/rfc5849#section-3.4.3), make\nthe following changes to the OAuth options object:\n* Pass `signature_method : 'RSA-SHA1'`\n* Instead of `consumer_secret`, specify a `private_key` string in\n [PEM format](http://how2ssl.com/articles/working_with_pem_files/)\n\nFor [PLAINTEXT signing](http://oauth.net/core/1.0/#anchor22), make\nthe following changes to the OAuth options object:\n* Pass `signature_method : 'PLAINTEXT'`\n\nTo send OAuth parameters via query params or in a post body as described in The\n[Consumer Request Parameters](http://oauth.net/core/1.0/#consumer_req_param)\nsection of the oauth1 spec:\n* Pass `transport_method : 'query'` or `transport_method : 'body'` in the OAuth\n options object.\n* `transport_method` defaults to `'header'`\n\nTo use [Request Body Hash](https://oauth.googlecode.com/svn/spec/ext/body_hash/1.0/oauth-bodyhash.html) you can either\n* Manually generate the body hash and pass it as a string `body_hash: '...'`\n* Automatically generate the body hash by passing `body_hash: true`\n\n[back to top](#table-of-contents)\n\n---\n\n## Proxies\n\nIf you specify a `proxy` option, then the request (and any subsequent\nredirects) will be sent via a connection to the proxy server.\n\nIf your endpoint is an `https` url, and you are using a proxy, then\nrequest will send a `CONNECT` request to the proxy server *first*, and\nthen use the supplied connection to connect to the endpoint.\n\nThat is, first it will make a request like:\n\n```\nHTTP/1.1 CONNECT endpoint-server.com:80\nHost: proxy-server.com\nUser-Agent: whatever user agent you specify\n```\n\nand then the proxy server make a TCP connection to `endpoint-server`\non port `80`, and return a response that looks like:\n\n```\nHTTP/1.1 200 OK\n```\n\nAt this point, the connection is left open, and the client is\ncommunicating directly with the `endpoint-server.com` machine.\n\nSee [the wikipedia page on HTTP Tunneling](https://en.wikipedia.org/wiki/HTTP_tunnel)\nfor more information.\n\nBy default, when proxying `http` traffic, request will simply make a\nstandard proxied `http` request. This is done by making the `url`\nsection of the initial line of the request a fully qualified url to\nthe endpoint.\n\nFor example, it will make a single request that looks like:\n\n```\nHTTP/1.1 GET http://endpoint-server.com/some-url\nHost: proxy-server.com\nOther-Headers: all go here\n\nrequest body or whatever\n```\n\nBecause a pure \"http over http\" tunnel offers no additional security\nor other features, it is generally simpler to go with a\nstraightforward HTTP proxy in this case. However, if you would like\nto force a tunneling proxy, you may set the `tunnel` option to `true`.\n\nYou can also make a standard proxied `http` request by explicitly setting\n`tunnel : false`, but **note that this will allow the proxy to see the traffic\nto/from the destination server**.\n\nIf you are using a tunneling proxy, you may set the\n`proxyHeaderWhiteList` to share certain headers with the proxy.\n\nYou can also set the `proxyHeaderExclusiveList` to share certain\nheaders only with the proxy and not with destination host.\n\nBy default, this set is:\n\n```\naccept\naccept-charset\naccept-encoding\naccept-language\naccept-ranges\ncache-control\ncontent-encoding\ncontent-language\ncontent-length\ncontent-location\ncontent-md5\ncontent-range\ncontent-type\nconnection\ndate\nexpect\nmax-forwards\npragma\nproxy-authorization\nreferer\nte\ntransfer-encoding\nuser-agent\nvia\n```\n\nNote that, when using a tunneling proxy, the `proxy-authorization`\nheader and any headers from custom `proxyHeaderExclusiveList` are\n*never* sent to the endpoint server, but only to the proxy server.\n\n### Controlling proxy behaviour using environment variables\n\nThe following environment variables are respected by `request`:\n\n * `HTTP_PROXY` / `http_proxy`\n * `HTTPS_PROXY` / `https_proxy`\n * `NO_PROXY` / `no_proxy`\n\nWhen `HTTP_PROXY` / `http_proxy` are set, they will be used to proxy non-SSL requests that do not have an explicit `proxy` configuration option present. Similarly, `HTTPS_PROXY` / `https_proxy` will be respected for SSL requests that do not have an explicit `proxy` configuration option. It is valid to define a proxy in one of the environment variables, but then override it for a specific request, using the `proxy` configuration option. Furthermore, the `proxy` configuration option can be explicitly set to false / null to opt out of proxying altogether for that request.\n\n`request` is also aware of the `NO_PROXY`/`no_proxy` environment variables. These variables provide a granular way to opt out of proxying, on a per-host basis. It should contain a comma separated list of hosts to opt out of proxying. It is also possible to opt of proxying when a particular destination port is used. Finally, the variable may be set to `*` to opt out of the implicit proxy configuration of the other environment variables.\n\nHere's some examples of valid `no_proxy` values:\n\n * `google.com` - don't proxy HTTP/HTTPS requests to Google.\n * `google.com:443` - don't proxy HTTPS requests to Google, but *do* proxy HTTP requests to Google.\n * `google.com:443, yahoo.com:80` - don't proxy HTTPS requests to Google, and don't proxy HTTP requests to Yahoo!\n * `*` - ignore `https_proxy`/`http_proxy` environment variables altogether.\n\n[back to top](#table-of-contents)\n\n---\n\n## UNIX Domain Sockets\n\n`request` supports making requests to [UNIX Domain Sockets](https://en.wikipedia.org/wiki/Unix_domain_socket). To make one, use the following URL scheme:\n\n```js\n/* Pattern */ 'http://unix:SOCKET:PATH'\n/* Example */ request.get('http://unix:/absolute/path/to/unix.socket:/request/path')\n```\n\nNote: The `SOCKET` path is assumed to be absolute to the root of the host file system.\n\n[back to top](#table-of-contents)\n\n---\n\n## TLS/SSL Protocol\n\nTLS/SSL Protocol options, such as `cert`, `key` and `passphrase`, can be\nset directly in `options` object, in the `agentOptions` property of the `options` object, or even in `https.globalAgent.options`. Keep in mind that, although `agentOptions` allows for a slightly wider range of configurations, the recommended way is via `options` object directly, as using `agentOptions` or `https.globalAgent.options` would not be applied in the same way in proxied environments (as data travels through a TLS connection instead of an http/https agent).\n\n```js\nvar fs = require('fs')\n , path = require('path')\n , certFile = path.resolve(__dirname, 'ssl/client.crt')\n , keyFile = path.resolve(__dirname, 'ssl/client.key')\n , caFile = path.resolve(__dirname, 'ssl/ca.cert.pem')\n , request = require('request');\n\nvar options = {\n url: 'https://api.some-server.com/',\n cert: fs.readFileSync(certFile),\n key: fs.readFileSync(keyFile),\n passphrase: 'password',\n ca: fs.readFileSync(caFile)\n};\n\nrequest.get(options);\n```\n\n### Using `options.agentOptions`\n\nIn the example below, we call an API that requires client side SSL certificate\n(in PEM format) with passphrase protected private key (in PEM format) and disable the SSLv3 protocol:\n\n```js\nvar fs = require('fs')\n , path = require('path')\n , certFile = path.resolve(__dirname, 'ssl/client.crt')\n , keyFile = path.resolve(__dirname, 'ssl/client.key')\n , request = require('request');\n\nvar options = {\n url: 'https://api.some-server.com/',\n agentOptions: {\n cert: fs.readFileSync(certFile),\n key: fs.readFileSync(keyFile),\n // Or use `pfx` property replacing `cert` and `key` when using private key, certificate and CA certs in PFX or PKCS12 format:\n // pfx: fs.readFileSync(pfxFilePath),\n passphrase: 'password',\n securityOptions: 'SSL_OP_NO_SSLv3'\n }\n};\n\nrequest.get(options);\n```\n\nIt is able to force using SSLv3 only by specifying `secureProtocol`:\n\n```js\nrequest.get({\n url: 'https://api.some-server.com/',\n agentOptions: {\n secureProtocol: 'SSLv3_method'\n }\n});\n```\n\nIt is possible to accept other certificates than those signed by generally allowed Certificate Authorities (CAs).\nThis can be useful, for example, when using self-signed certificates.\nTo require a different root certificate, you can specify the signing CA by adding the contents of the CA's certificate file to the `agentOptions`.\nThe certificate the domain presents must be signed by the root certificate specified:\n\n```js\nrequest.get({\n url: 'https://api.some-server.com/',\n agentOptions: {\n ca: fs.readFileSync('ca.cert.pem')\n }\n});\n```\n\n[back to top](#table-of-contents)\n\n---\n\n## Support for HAR 1.2\n\nThe `options.har` property will override the values: `url`, `method`, `qs`, `headers`, `form`, `formData`, `body`, `json`, as well as construct multipart data and read files from disk when `request.postData.params[].fileName` is present without a matching `value`.\n\nA validation step will check if the HAR Request format matches the latest spec (v1.2) and will skip parsing if not matching.\n\n```js\n var request = require('request')\n request({\n // will be ignored\n method: 'GET',\n uri: 'http://www.google.com',\n\n // HTTP Archive Request Object\n har: {\n url: 'http://www.mockbin.com/har',\n method: 'POST',\n headers: [\n {\n name: 'content-type',\n value: 'application/x-www-form-urlencoded'\n }\n ],\n postData: {\n mimeType: 'application/x-www-form-urlencoded',\n params: [\n {\n name: 'foo',\n value: 'bar'\n },\n {\n name: 'hello',\n value: 'world'\n }\n ]\n }\n }\n })\n\n // a POST request will be sent to http://www.mockbin.com\n // with body an application/x-www-form-urlencoded body:\n // foo=bar&hello=world\n```\n\n[back to top](#table-of-contents)\n\n---\n\n## request(options, callback)\n\nThe first argument can be either a `url` or an `options` object. The only required option is `uri`; all others are optional.\n\n- `uri` || `url` - fully qualified uri or a parsed url object from `url.parse()`\n- `baseUrl` - fully qualified uri string used as the base url. Most useful with `request.defaults`, for example when you want to do many requests to the same domain. If `baseUrl` is `https://example.com/api/`, then requesting `/end/point?test=true` will fetch `https://example.com/api/end/point?test=true`. When `baseUrl` is given, `uri` must also be a string.\n- `method` - http method (default: `\"GET\"`)\n- `headers` - http headers (default: `{}`)\n\n---\n\n- `qs` - object containing querystring values to be appended to the `uri`\n- `qsParseOptions` - object containing options to pass to the [qs.parse](https://github.com/hapijs/qs#parsing-objects) method. Alternatively pass options to the [querystring.parse](https://nodejs.org/docs/v0.12.0/api/querystring.html#querystring_querystring_parse_str_sep_eq_options) method using this format `{sep:';', eq:':', options:{}}`\n- `qsStringifyOptions` - object containing options to pass to the [qs.stringify](https://github.com/hapijs/qs#stringifying) method. Alternatively pass options to the [querystring.stringify](https://nodejs.org/docs/v0.12.0/api/querystring.html#querystring_querystring_stringify_obj_sep_eq_options) method using this format `{sep:';', eq:':', options:{}}`. For example, to change the way arrays are converted to query strings using the `qs` module pass the `arrayFormat` option with one of `indices|brackets|repeat`\n- `useQuerystring` - if true, use `querystring` to stringify and parse\n querystrings, otherwise use `qs` (default: `false`). Set this option to\n `true` if you need arrays to be serialized as `foo=bar&foo=baz` instead of the\n default `foo[0]=bar&foo[1]=baz`.\n\n---\n\n- `body` - entity body for PATCH, POST and PUT requests. Must be a `Buffer`, `String` or `ReadStream`. If `json` is `true`, then `body` must be a JSON-serializable object.\n- `form` - when passed an object or a querystring, this sets `body` to a querystring representation of value, and adds `Content-type: application/x-www-form-urlencoded` header. When passed no options, a `FormData` instance is returned (and is piped to request). See \"Forms\" section above.\n- `formData` - data to pass for a `multipart/form-data` request. See\n [Forms](#forms) section above.\n- `multipart` - array of objects which contain their own headers and `body`\n attributes. Sends a `multipart/related` request. See [Forms](#forms) section\n above.\n - Alternatively you can pass in an object `{chunked: false, data: []}` where\n `chunked` is used to specify whether the request is sent in\n [chunked transfer encoding](https://en.wikipedia.org/wiki/Chunked_transfer_encoding)\n In non-chunked requests, data items with body streams are not allowed.\n- `preambleCRLF` - append a newline/CRLF before the boundary of your `multipart/form-data` request.\n- `postambleCRLF` - append a newline/CRLF at the end of the boundary of your `multipart/form-data` request.\n- `json` - sets `body` to JSON representation of value and adds `Content-type: application/json` header. Additionally, parses the response body as JSON.\n- `jsonReviver` - a [reviver function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse) that will be passed to `JSON.parse()` when parsing a JSON response body.\n- `jsonReplacer` - a [replacer function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify) that will be passed to `JSON.stringify()` when stringifying a JSON request body.\n\n---\n\n- `auth` - a hash containing values `user` || `username`, `pass` || `password`, and `sendImmediately` (optional). See documentation above.\n- `oauth` - options for OAuth HMAC-SHA1 signing. See documentation above.\n- `hawk` - options for [Hawk signing](https://github.com/hueniverse/hawk). The `credentials` key must contain the necessary signing info, [see hawk docs for details](https://github.com/hueniverse/hawk#usage-example).\n- `aws` - `object` containing AWS signing information. Should have the properties `key`, `secret`, and optionally `session` (note that this only works for services that require session as part of the canonical string). Also requires the property `bucket`, unless you’re specifying your `bucket` as part of the path, or the request doesn’t use a bucket (i.e. GET Services). If you want to use AWS sign version 4 use the parameter `sign_version` with value `4` otherwise the default is version 2. If you are using SigV4, you can also include a `service` property that specifies the service name. **Note:** you need to `npm install aws4` first.\n- `httpSignature` - options for the [HTTP Signature Scheme](https://github.com/joyent/node-http-signature/blob/master/http_signing.md) using [Joyent's library](https://github.com/joyent/node-http-signature). The `keyId` and `key` properties must be specified. See the docs for other options.\n\n---\n\n- `followRedirect` - follow HTTP 3xx responses as redirects (default: `true`). This property can also be implemented as function which gets `response` object as a single argument and should return `true` if redirects should continue or `false` otherwise.\n- `followAllRedirects` - follow non-GET HTTP 3xx responses as redirects (default: `false`)\n- `followOriginalHttpMethod` - by default we redirect to HTTP method GET. you can enable this property to redirect to the original HTTP method (default: `false`)\n- `maxRedirects` - the maximum number of redirects to follow (default: `10`)\n- `removeRefererHeader` - removes the referer header when a redirect happens (default: `false`). **Note:** if true, referer header set in the initial request is preserved during redirect chain.\n\n---\n\n- `encoding` - encoding to be used on `setEncoding` of response data. If `null`, the `body` is returned as a `Buffer`. Anything else **(including the default value of `undefined`)** will be passed as the [encoding](http://nodejs.org/api/buffer.html#buffer_buffer) parameter to `toString()` (meaning this is effectively `utf8` by default). (**Note:** if you expect binary data, you should set `encoding: null`.)\n- `gzip` - if `true`, add an `Accept-Encoding` header to request compressed content encodings from the server (if not already present) and decode supported content encodings in the response. **Note:** Automatic decoding of the response content is performed on the body data returned through `request` (both through the `request` stream and passed to the callback function) but is not performed on the `response` stream (available from the `response` event) which is the unmodified `http.IncomingMessage` object which may contain compressed data. See example below.\n- `jar` - if `true`, remember cookies for future use (or define your custom cookie jar; see examples section)\n\n---\n\n- `agent` - `http(s).Agent` instance to use\n- `agentClass` - alternatively specify your agent's class name\n- `agentOptions` - and pass its options. **Note:** for HTTPS see [tls API doc for TLS/SSL options](http://nodejs.org/api/tls.html#tls_tls_connect_options_callback) and the [documentation above](#using-optionsagentoptions).\n- `forever` - set to `true` to use the [forever-agent](https://github.com/request/forever-agent) **Note:** Defaults to `http(s).Agent({keepAlive:true})` in node 0.12+\n- `pool` - an object describing which agents to use for the request. If this option is omitted the request will use the global agent (as long as your options allow for it). Otherwise, request will search the pool for your custom agent. If no custom agent is found, a new agent will be created and added to the pool. **Note:** `pool` is used only when the `agent` option is not specified.\n - A `maxSockets` property can also be provided on the `pool` object to set the max number of sockets for all agents created (ex: `pool: {maxSockets: Infinity}`).\n - Note that if you are sending multiple requests in a loop and creating\n multiple new `pool` objects, `maxSockets` will not work as intended. To\n work around this, either use [`request.defaults`](#requestdefaultsoptions)\n with your pool options or create the pool object with the `maxSockets`\n property outside of the loop.\n- `timeout` - integer containing the number of milliseconds to wait for a\nserver to send response headers (and start the response body) before aborting\nthe request. Note that if the underlying TCP connection cannot be established,\nthe OS-wide TCP connection timeout will overrule the `timeout` option ([the\ndefault in Linux can be anywhere from 20-120 seconds][linux-timeout]).\n\n[linux-timeout]: http://www.sekuda.com/overriding_the_default_linux_kernel_20_second_tcp_socket_connect_timeout\n\n---\n\n- `localAddress` - local interface to bind for network connections.\n- `proxy` - an HTTP proxy to be used. Supports proxy Auth with Basic Auth, identical to support for the `url` parameter (by embedding the auth info in the `uri`)\n- `strictSSL` - if `true`, requires SSL certificates be valid. **Note:** to use your own certificate authority, you need to specify an agent that was created with that CA as an option.\n- `tunnel` - controls the behavior of\n [HTTP `CONNECT` tunneling](https://en.wikipedia.org/wiki/HTTP_tunnel#HTTP_CONNECT_tunneling)\n as follows:\n - `undefined` (default) - `true` if the destination is `https`, `false` otherwise\n - `true` - always tunnel to the destination by making a `CONNECT` request to\n the proxy\n - `false` - request the destination as a `GET` request.\n- `proxyHeaderWhiteList` - a whitelist of headers to send to a\n tunneling proxy.\n- `proxyHeaderExclusiveList` - a whitelist of headers to send\n exclusively to a tunneling proxy and not to destination.\n\n---\n\n- `time` - if `true`, the request-response cycle (including all redirects) is timed at millisecond resolution. When set, the following properties are added to the response object:\n - `elapsedTime` Duration of the entire request/response in milliseconds (*deprecated*).\n - `responseStartTime` Timestamp when the response began (in Unix Epoch milliseconds) (*deprecated*).\n - `timingStart` Timestamp of the start of the request (in Unix Epoch milliseconds).\n - `timings` Contains event timestamps in millisecond resolution relative to `timingStart`. If there were redirects, the properties reflect the timings of the final request in the redirect chain:\n - `socket` Relative timestamp when the [`http`](https://nodejs.org/api/http.html#http_event_socket) module's `socket` event fires. This happens when the socket is assigned to the request.\n - `lookup` Relative timestamp when the [`net`](https://nodejs.org/api/net.html#net_event_lookup) module's `lookup` event fires. This happens when the DNS has been resolved.\n - `connect`: Relative timestamp when the [`net`](https://nodejs.org/api/net.html#net_event_connect) module's `connect` event fires. This happens when the server acknowledges the TCP connection.\n - `response`: Relative timestamp when the [`http`](https://nodejs.org/api/http.html#http_event_response) module's `response` event fires. This happens when the first bytes are received from the server.\n - `end`: Relative timestamp when the last bytes of the response are received.\n - `timingPhases` Contains the durations of each request phase. If there were redirects, the properties reflect the timings of the final request in the redirect chain:\n - `wait`: Duration of socket initialization (`timings.socket`)\n - `dns`: Duration of DNS lookup (`timings.lookup` - `timings.socket`)\n - `tcp`: Duration of TCP connection (`timings.connect` - `timings.socket`)\n - `firstByte`: Duration of HTTP server response (`timings.response` - `timings.connect`)\n - `download`: Duration of HTTP download (`timings.end` - `timings.response`)\n - `total`: Duration entire HTTP round-trip (`timings.end`)\n\n- `har` - a [HAR 1.2 Request Object](http://www.softwareishard.com/blog/har-12-spec/#request), will be processed from HAR format into options overwriting matching values *(see the [HAR 1.2 section](#support-for-har-1.2) for details)*\n- `callback` - alternatively pass the request's callback in the options object\n\nThe callback argument gets 3 arguments:\n\n1. An `error` when applicable (usually from [`http.ClientRequest`](http://nodejs.org/api/http.html#http_class_http_clientrequest) object)\n2. An [`http.IncomingMessage`](https://nodejs.org/api/http.html#http_class_http_incomingmessage) object (Response object)\n3. The third is the `response` body (`String` or `Buffer`, or JSON object if the `json` option is supplied)\n\n[back to top](#table-of-contents)\n\n---\n\n## Convenience methods\n\nThere are also shorthand methods for different HTTP METHODs and some other conveniences.\n\n### request.defaults(options)\n\nThis method **returns a wrapper** around the normal request API that defaults\nto whatever options you pass to it.\n\n**Note:** `request.defaults()` **does not** modify the global request API;\ninstead, it **returns a wrapper** that has your default settings applied to it.\n\n**Note:** You can call `.defaults()` on the wrapper that is returned from\n`request.defaults` to add/override defaults that were previously defaulted.\n\nFor example:\n```js\n//requests using baseRequest() will set the 'x-token' header\nvar baseRequest = request.defaults({\n headers: {'x-token': 'my-token'}\n})\n\n//requests using specialRequest() will include the 'x-token' header set in\n//baseRequest and will also include the 'special' header\nvar specialRequest = baseRequest.defaults({\n headers: {special: 'special value'}\n})\n```\n\n### request.METHOD()\n\nThese HTTP method convenience functions act just like `request()` but with a default method already set for you:\n\n- *request.get()*: Defaults to `method: \"GET\"`.\n- *request.post()*: Defaults to `method: \"POST\"`.\n- *request.put()*: Defaults to `method: \"PUT\"`.\n- *request.patch()*: Defaults to `method: \"PATCH\"`.\n- *request.del() / request.delete()*: Defaults to `method: \"DELETE\"`.\n- *request.head()*: Defaults to `method: \"HEAD\"`.\n- *request.options()*: Defaults to `method: \"OPTIONS\"`.\n\n### request.cookie()\n\nFunction that creates a new cookie.\n\n```js\nrequest.cookie('key1=value1')\n```\n### request.jar()\n\nFunction that creates a new cookie jar.\n\n```js\nrequest.jar()\n```\n\n[back to top](#table-of-contents)\n\n---\n\n## Debugging\n\nThere are at least three ways to debug the operation of `request`:\n\n1. Launch the node process like `NODE_DEBUG=request node script.js`\n (`lib,request,otherlib` works too).\n\n2. Set `require('request').debug = true` at any time (this does the same thing\n as #1).\n\n3. Use the [request-debug module](https://github.com/request/request-debug) to\n view request and response headers and bodies.\n\n[back to top](#table-of-contents)\n\n---\n\n## Timeouts\n\nMost requests to external servers should have a timeout attached, in case the\nserver is not responding in a timely manner. Without a timeout, your code may\nhave a socket open/consume resources for minutes or more.\n\nThere are two main types of timeouts: **connection timeouts** and **read\ntimeouts**. A connect timeout occurs if the timeout is hit while your client is\nattempting to establish a connection to a remote machine (corresponding to the\n[connect() call][connect] on the socket). A read timeout occurs any time the\nserver is too slow to send back a part of the response.\n\nThese two situations have widely different implications for what went wrong\nwith the request, so it's useful to be able to distinguish them. You can detect\ntimeout errors by checking `err.code` for an 'ETIMEDOUT' value. Further, you\ncan detect whether the timeout was a connection timeout by checking if the\n`err.connect` property is set to `true`.\n\n```js\nrequest.get('http://10.255.255.1', {timeout: 1500}, function(err) {\n console.log(err.code === 'ETIMEDOUT');\n // Set to `true` if the timeout was a connection timeout, `false` or\n // `undefined` otherwise.\n console.log(err.connect === true);\n process.exit(0);\n});\n```\n\n[connect]: http://linux.die.net/man/2/connect\n\n## Examples:\n\n```js\n var request = require('request')\n , rand = Math.floor(Math.random()*100000000).toString()\n ;\n request(\n { method: 'PUT'\n , uri: 'http://mikeal.iriscouch.com/testjs/' + rand\n , multipart:\n [ { 'content-type': 'application/json'\n , body: JSON.stringify({foo: 'bar', _attachments: {'message.txt': {follows: true, length: 18, 'content_type': 'text/plain' }}})\n }\n , { body: 'I am an attachment' }\n ]\n }\n , function (error, response, body) {\n if(response.statusCode == 201){\n console.log('document saved as: http://mikeal.iriscouch.com/testjs/'+ rand)\n } else {\n console.log('error: '+ response.statusCode)\n console.log(body)\n }\n }\n )\n```\n\nFor backwards-compatibility, response compression is not supported by default.\nTo accept gzip-compressed responses, set the `gzip` option to `true`. Note\nthat the body data passed through `request` is automatically decompressed\nwhile the response object is unmodified and will contain compressed data if\nthe server sent a compressed response.\n\n```js\n var request = require('request')\n request(\n { method: 'GET'\n , uri: 'http://www.google.com'\n , gzip: true\n }\n , function (error, response, body) {\n // body is the decompressed response body\n console.log('server encoded the data as: ' + (response.headers['content-encoding'] || 'identity'))\n console.log('the decoded data is: ' + body)\n }\n )\n .on('data', function(data) {\n // decompressed data as it is received\n console.log('decoded chunk: ' + data)\n })\n .on('response', function(response) {\n // unmodified http.IncomingMessage object\n response.on('data', function(data) {\n // compressed data as it is received\n console.log('received ' + data.length + ' bytes of compressed data')\n })\n })\n```\n\nCookies are disabled by default (else, they would be used in subsequent requests). To enable cookies, set `jar` to `true` (either in `defaults` or `options`).\n\n```js\nvar request = request.defaults({jar: true})\nrequest('http://www.google.com', function () {\n request('http://images.google.com')\n})\n```\n\nTo use a custom cookie jar (instead of `request`’s global cookie jar), set `jar` to an instance of `request.jar()` (either in `defaults` or `options`)\n\n```js\nvar j = request.jar()\nvar request = request.defaults({jar:j})\nrequest('http://www.google.com', function () {\n request('http://images.google.com')\n})\n```\n\nOR\n\n```js\nvar j = request.jar();\nvar cookie = request.cookie('key1=value1');\nvar url = 'http://www.google.com';\nj.setCookie(cookie, url);\nrequest({url: url, jar: j}, function () {\n request('http://images.google.com')\n})\n```\n\nTo use a custom cookie store (such as a\n[`FileCookieStore`](https://github.com/mitsuru/tough-cookie-filestore)\nwhich supports saving to and restoring from JSON files), pass it as a parameter\nto `request.jar()`:\n\n```js\nvar FileCookieStore = require('tough-cookie-filestore');\n// NOTE - currently the 'cookies.json' file must already exist!\nvar j = request.jar(new FileCookieStore('cookies.json'));\nrequest = request.defaults({ jar : j })\nrequest('http://www.google.com', function() {\n request('http://images.google.com')\n})\n```\n\nThe cookie store must be a\n[`tough-cookie`](https://github.com/SalesforceEng/tough-cookie)\nstore and it must support synchronous operations; see the\n[`CookieStore` API docs](https://github.com/SalesforceEng/tough-cookie#cookiestore-api)\nfor details.\n\nTo inspect your cookie jar after a request:\n\n```js\nvar j = request.jar()\nrequest({url: 'http://www.google.com', jar: j}, function () {\n var cookie_string = j.getCookieString(url); // \"key1=value1; key2=value2; ...\"\n var cookies = j.getCookies(url);\n // [{key: 'key1', value: 'value1', domain: \"www.google.com\", ...}, ...]\n})\n```\n\n[back to top](#table-of-contents)\n# debug\n[](https://travis-ci.org/visionmedia/debug) [](https://coveralls.io/github/visionmedia/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)\n[](#sponsors)\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nA tiny JavaScript debugging utility modelled after Node.js core's debugging\ntechnique. Works in Node.js and web browsers.\n\n## Installation\n\n```bash\n$ npm install debug\n```\n\n## Usage\n\n`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.\n\nExample [_app.js_](./examples/node/app.js):\n\n```js\nvar debug = require('debug')('http')\n , http = require('http')\n , name = 'My App';\n\n// fake app\n\ndebug('booting %o', name);\n\nhttp.createServer(function(req, res){\n debug(req.method + ' ' + req.url);\n res.end('hello\\n');\n}).listen(3000, function(){\n debug('listening');\n});\n\n// fake worker of some kind\n\nrequire('./worker');\n```\n\nExample [_worker.js_](./examples/node/worker.js):\n\n```js\nvar a = require('debug')('worker:a')\n , b = require('debug')('worker:b');\n\nfunction work() {\n a('doing lots of uninteresting work');\n setTimeout(work, Math.random() * 1000);\n}\n\nwork();\n\nfunction workb() {\n b('doing some work');\n setTimeout(workb, Math.random() * 2000);\n}\n\nworkb();\n```\n\nThe `DEBUG` environment variable is then used to enable these based on space or\ncomma-delimited names.\n\nHere are some examples:\n\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 04 pm\" src=\"https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 38 pm\" src=\"https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png\">\n<img width=\"647\" alt=\"screen shot 2017-08-08 at 12 53 25 pm\" src=\"https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png\">\n\n#### Windows command prompt notes\n\n##### CMD\n\nOn Windows the environment variable is set using the `set` command.\n\n```cmd\nset DEBUG=*,-not_this\n```\n\nExample:\n\n```cmd\nset DEBUG=* & node app.js\n```\n\n##### PowerShell (VS Code default)\n\nPowerShell uses different syntax to set environment variables.\n\n```cmd\n$env:DEBUG = \"*,-not_this\"\n```\n\nExample:\n\n```cmd\n$env:DEBUG='app';node app.js\n```\n\nThen, run the program to be debugged as usual.\n\nnpm script example:\n```js\n \"windowsDebug\": \"@powershell -Command $env:DEBUG='*';node app.js\",\n```\n\n## Namespace Colors\n\nEvery debug instance has a color generated for it based on its namespace name.\nThis helps when visually parsing the debug output to identify which debug instance\na debug line belongs to.\n\n#### Node.js\n\nIn Node.js, colors are enabled when stderr is a TTY. You also _should_ install\nthe [`supports-color`](https://npmjs.org/supports-color) module alongside debug,\notherwise debug will only use a small handful of basic colors.\n\n<img width=\"521\" src=\"https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png\">\n\n#### Web Browser\n\nColors are also enabled on \"Web Inspectors\" that understand the `%c` formatting\noption. These are WebKit web inspectors, Firefox ([since version\n31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))\nand the Firebug plugin for Firefox (any version).\n\n<img width=\"524\" src=\"https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png\">\n\n## Millisecond diff\n\nWhen actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the \"+NNNms\" will show you how much time was spent between calls.\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png\">\n\nWhen stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:\n\n<img width=\"647\" src=\"https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png\">\n\n## Conventions\n\nIf you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use \":\" to separate features. For example \"bodyParser\" from Connect would then be \"connect:bodyParser\". If you append a \"*\" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.\n\n## Wildcards\n\nThe `*` character may be used as a wildcard. Suppose for example your library has\ndebuggers named \"connect:bodyParser\", \"connect:compress\", \"connect:session\",\ninstead of listing all three with\n`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do\n`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.\n\nYou can also exclude specific debuggers by prefixing them with a \"-\" character.\nFor example, `DEBUG=*,-connect:*` would include all debuggers except those\nstarting with \"connect:\".\n\n## Environment Variables\n\nWhen running through Node.js, you can set a few environment variables that will\nchange the behavior of the debug logging:\n\n| Name | Purpose |\n|-----------|-------------------------------------------------|\n| `DEBUG` | Enables/disables specific debugging namespaces. |\n| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |\n| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |\n| `DEBUG_DEPTH` | Object inspection depth. |\n| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |\n\n__Note:__ The environment variables beginning with `DEBUG_` end up being\nconverted into an Options object that gets used with `%o`/`%O` formatters.\nSee the Node.js documentation for\n[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)\nfor the complete list.\n\n## Formatters\n\nDebug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.\nBelow are the officially supported formatters:\n\n| Formatter | Representation |\n|-----------|----------------|\n| `%O` | Pretty-print an Object on multiple lines. |\n| `%o` | Pretty-print an Object all on a single line. |\n| `%s` | String. |\n| `%d` | Number (both integer and float). |\n| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |\n| `%%` | Single percent sign ('%'). This does not consume an argument. |\n\n### Custom formatters\n\nYou can add custom formatters by extending the `debug.formatters` object.\nFor example, if you wanted to add support for rendering a Buffer as hex with\n`%h`, you could do something like:\n\n```js\nconst createDebug = require('debug')\ncreateDebug.formatters.h = (v) => {\n return v.toString('hex')\n}\n\n// …elsewhere\nconst debug = createDebug('foo')\ndebug('this is hex: %h', new Buffer('hello world'))\n// foo this is hex: 68656c6c6f20776f726c6421 +0ms\n```\n\n## Browser Support\n\nYou can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),\nor just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),\nif you don't want to build it yourself.\n\nDebug's enable state is currently persisted by `localStorage`.\nConsider the situation shown below where you have `worker:a` and `worker:b`,\nand wish to debug both. You can enable this using `localStorage.debug`:\n\n```js\nlocalStorage.debug = 'worker:*'\n```\n\nAnd then refresh the page.\n\n```js\na = debug('worker:a');\nb = debug('worker:b');\n\nsetInterval(function(){\n a('doing some work');\n}, 1000);\n\nsetInterval(function(){\n b('doing some work');\n}, 1200);\n```\n\n## Output streams\n\n By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:\n\nExample [_stdout.js_](./examples/node/stdout.js):\n\n```js\nvar debug = require('debug');\nvar error = debug('app:error');\n\n// by default stderr is used\nerror('goes to stderr!');\n\nvar log = debug('app:log');\n// set this namespace to log via console.log\nlog.log = console.log.bind(console); // don't forget to bind to console!\nlog('goes to stdout');\nerror('still goes to stderr!');\n\n// set all output to go via console.info\n// overrides all per-namespace log settings\ndebug.log = console.info.bind(console);\nerror('now goes to stdout via console.info');\nlog('still goes to stdout, but via console.info now');\n```\n\n## Extend\nYou can simply extend debugger \n```js\nconst log = require('debug')('auth');\n\n//creates new debug instance with extended namespace\nconst logSign = log.extend('sign');\nconst logLogin = log.extend('login');\n\nlog('hello'); // auth hello\nlogSign('hello'); //auth:sign hello\nlogLogin('hello'); //auth:login hello\n```\n\n## Set dynamically\n\nYou can also enable debug dynamically by calling the `enable()` method :\n\n```js\nlet debug = require('debug');\n\nconsole.log(1, debug.enabled('test'));\n\ndebug.enable('test');\nconsole.log(2, debug.enabled('test'));\n\ndebug.disable();\nconsole.log(3, debug.enabled('test'));\n\n```\n\nprint : \n```\n1 false\n2 true\n3 false\n```\n\nUsage : \n`enable(namespaces)` \n`namespaces` can include modes separated by a colon and wildcards.\n \nNote that calling `enable()` completely overrides previously set DEBUG variable : \n\n```\n$ DEBUG=foo node -e 'var dbg = require(\"debug\"); dbg.enable(\"bar\"); console.log(dbg.enabled(\"foo\"))'\n=> false\n```\n\n## Checking whether a debug target is enabled\n\nAfter you've created a debug instance, you can determine whether or not it is\nenabled by checking the `enabled` property:\n\n```javascript\nconst debug = require('debug')('http');\n\nif (debug.enabled) {\n // do stuff...\n}\n```\n\nYou can also manually toggle this property to force the debug instance to be\nenabled or disabled.\n\n## Authors\n\n - TJ Holowaychuk\n - Nathan Rajlich\n - Andrew Rhyne\n\n## Backers\n\nSupport us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]\n\n<a href=\"https://opencollective.com/debug/backer/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/5/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/6/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/6/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/7/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/7/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/8/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/8/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/9/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/9/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/10/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/10/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/11/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/11/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/12/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/12/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/13/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/13/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/14/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/14/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/15/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/15/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/16/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/16/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/17/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/17/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/18/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/backer/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/backer/29/avatar.svg\"></a>\n\n## Sponsors\n\nBecome a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]\n\n<a href=\"https://opencollective.com/debug/sponsor/0/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/0/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/1/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/1/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/2/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/2/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/3/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/3/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/4/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/4/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/5/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/5/avatar.svg\"></a>\n<a 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target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/12/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/13/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/13/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/14/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/14/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/15/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/15/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/16/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/16/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/17/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/17/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/18/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/18/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/19/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/19/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/20/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/20/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/21/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/21/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/22/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/22/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/23/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/23/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/24/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/24/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/25/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/25/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/26/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/26/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/27/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/27/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/28/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/28/avatar.svg\"></a>\n<a href=\"https://opencollective.com/debug/sponsor/29/website\" target=\"_blank\"><img src=\"https://opencollective.com/debug/sponsor/29/avatar.svg\"></a>\n\n## License\n\n(The MIT License)\n\nCopyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n'Software'), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be\nincluded in all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\nEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n"}}},{"rowIdx":880,"cells":{"repoName":{"kind":"string","value":"esaminu_donation-boilerplate-template-js-qw98er"},"tree":{"kind":"string","value":".github\n scripts\n runfe.sh\n workflows\n deploy-to-console.yml\n readme.yml\n tests.yml\n.gitpod.yml\nREADME.md\ncontract\n README.md\n build.sh\n deploy.sh\n package-lock.json\n package.json\n src\n contract.ts\n model.ts\n utils.ts\n tsconfig.json\nintegration-tests\n package-lock.json\n package.json\n src\n main.ava.ts\npackage-lock.json\npackage.json\n"},"readme":{"kind":"string","value":"# Donation 💸 \n[](https://docs.near.org/tutorials/welcome)\n[](https://gitpod.io/#/https://github.com/near-examples/donation-js)\n[](https://docs.near.org/develop/contracts/anatomy)\n[](https://docs.near.org/develop/integrate/frontend)\n[](https://actions-badge.atrox.dev/near-examples/donation-js/goto)\n\nOur Donation example enables to forward money to an account while keeping track of it. It is one of the simplest examples on making a contract receive and send money.\n\n\n\n# What This Example Shows\n\n1. How to receive and transfer $NEAR on a contract.\n2. How to divide a project into multiple modules.\n3. How to handle the storage costs.\n4. How to handle transaction results.\n5. How to use a `Map`.\n\n<br />\n\n# Quickstart\n\nClone this repository locally or [**open it in gitpod**](https://gitpod.io/#/github.com/near-examples/donation-js). Then follow these steps:\n\n### 1. Install Dependencies\n```bash\nnpm install\n```\n\n### 2. Test the Contract\nDeploy your contract in a sandbox and simulate interactions from users.\n\n```bash\nnpm test\n```\n\n### 3. Deploy the Contract\nBuild the contract and deploy it in a testnet account\n```bash\nnpm run deploy\n```\n\n---\n\n# Learn More\n1. Learn more about the contract through its [README](./contract/README.md).\n2. Check [**our documentation**](https://docs.near.org/develop/welcome).\n# Donation Contract\n\nThe smart contract exposes methods to handle donating $NEAR to a `beneficiary`.\n\n```ts\n@call\ndonate() {\n // Get who is calling the method and how much $NEAR they attached\n let donor = near.predecessorAccountId(); \n let donationAmount: bigint = near.attachedDeposit() as bigint;\n\n let donatedSoFar = this.donations.get(donor) === null? BigInt(0) : BigInt(this.donations.get(donor) as string)\n let toTransfer = donationAmount;\n\n // This is the user's first donation, lets register it, which increases storage\n if(donatedSoFar == BigInt(0)) {\n assert(donationAmount > STORAGE_COST, `Attach at least ${STORAGE_COST} yoctoNEAR`);\n\n // Subtract the storage cost to the amount to transfer\n toTransfer -= STORAGE_COST\n }\n\n // Persist in storage the amount donated so far\n donatedSoFar += donationAmount\n this.donations.set(donor, donatedSoFar.toString())\n\n // Send the money to the beneficiary\n const promise = near.promiseBatchCreate(this.beneficiary)\n near.promiseBatchActionTransfer(promise, toTransfer)\n\n // Return the total amount donated so far\n return donatedSoFar.toString()\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\nnpm run deploy\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\nThe contract will be automatically initialized with a default `beneficiary`.\n\nTo initialize the contract yourself do:\n\n```bash\n# Use near-cli to initialize contract (optional)\nnear call <dev-account> init '{\"beneficiary\":\"<account>\"}' --accountId <dev-account>\n```\n\n<br />\n\n## 2. Get Beneficiary\n`beneficiary` is a read-only method (`view` method) that returns the beneficiary of the donations.\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\nnear view <dev-account> beneficiary\n```\n\n<br />\n\n## 3. Get Number of Donations\n\n`donate` forwards any attached money to the `beneficiary` while keeping track of it.\n\n`donate` is a payable method for which can only be invoked using a NEAR account. The account needs to attach money and pay GAS for the transaction.\n\n```bash\n# Use near-cli to donate 1 NEAR\nnear call <dev-account> donate --amount 1 --accountId <account>\n```\n\n**Tip:** If you would like to `donate` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n"}}},{"rowIdx":881,"cells":{"repoName":{"kind":"string","value":"PrimeLabCore_web3-diagram"},"tree":{"kind":"string","value":"Cargo.toml\nREADME.md\n|\ncargo-diagram\n Cargo.toml\n src\n main.rs\n svg.rs\ndo-build.sh\ndo-docs.sh\ndo-run.sh\nexample\n Cargo.toml\n example.sh\n src\n events.rs\n lib.rs\n main.rs\n some_fancy_impl.rs\n some_fancy_impl\n helpers.rs\n trait_impl.rs\nmermaid-markdown-api\n Cargo.toml\n src\n lib.rs\n md_api.rs\n objects\n connection.rs\n mod.rs\n node.rs\n scanner_pipeline.rs\n syntax\n flow_chart.rs\n mod.rs\nscanner-syn\n Cargo.toml\n src\n contract_descriptor.rs\n core_impl\n code_generator\n attr_sig_info.rs\n impl_item_method_info.rs\n item_impl_info.rs\n item_struct_info.rs\n item_trait_info.rs\n mod.rs\n trait_item_method_info.rs\n info_extractor\n arg_info.rs\n attr_sig_info.rs\n impl_item_method_info.rs\n init_attr.rs\n item_fn_info.rs\n item_impl_info.rs\n item_trait_info.rs\n mod.rs\n serializer_attr.rs\n statements_parser.rs\n trait_item_method_info.rs\n metadata\n metadata_generator.rs\n metadata_visitor.rs\n mod.rs\n mod.rs\n lib.rs\n"},"readme":{"kind":"string","value":"# Web3 Diagram\n\n## **This is a cargo utility that allows developers to generate visualizations depicting data flows within their NEAR Rust smart contracts.**\n\n<br>\n\n### Which problem does it solve?\n**Provides the ability to generate representations of methods to allow for anyone to quickly understand how the contract works.**\n\n<br>\n\n### Who can use this?\n**Smart contract developers use it to generate the images, but the images can help anyone trying to understand what’s going on.**\n\n<br>\n\n## Key Features\n\n| Feature | Description |\n| ----------- | ----------- |\n| View Functions | Near smart contract view only functions |\n| Mutation | Near smart contract mutable functions |\n| Process | Helper or utility functions, also functions out of smart contract scope |\n| Events | Functions that falls into near event [standard]([https://link](https://github.com/near/near-sdk-rs/blob/master/near-contract-standards/src/event.rs)) |\n| View Trait Impl | View only functions but trait implamentation |\n| Mutation Trait Impl | Mutable functions but trait implamentation |\n| Payable | Functions that except Near |\n| Initializers | Smart contract initializer functions |\n\n<br>\n\n# Installation\n## Install Rust\n```bash\ncurl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh\n```\n<br>\n\n## Install cli with [brew](https://brew.sh/)\n\n```bash\nbrew install mermaid-cli\n```\n\n<br>\n\n## Install web3d diagram utility\n\n```bash\ncargo install web3d \n```\n\n<br>\n \n\n## Install [node](https://gist.github.com/tomysmile/da3cb8194ec8f0e4df86#install-node)\n\n```bash\nbrew install node\n```\n\n<br>\n\n## Web3 Utility Usage\n\n### 1) Clone raffle smart contract from near examples\n\n```bash\ngit clone git@github.com:near-examples/rust-ft-raffle.git\n```\n\n<br>\n\n### 2) Go to the root directory\n```bash\ncd rust-ft-raffle\n```\n\n### 3) Run utility againt cloned smart contract and open in web browser\n```bash\nweb3d -O --input raffle.md\n```\n\n<br>\n\n## Options\n\n| Key/Command | Description |\n| ----------- | ----------- |\n| -b, --backgroundColor | Background color. Example: transparent, red, '#F0F0F0'. Optional. Default: white |\n| -h, --help | Print help information |\n| -H, --height | Height of the page. Optional. Default: 600 |\n| -i, --input | Markdown file name |\n| -o, --output | Output file name. It should be either md, svg, png or pdf. Optional. Default:'./res/input_file_name.svg' |\n| -O, --openb | Should open output file in browser |\n| -q, --quiet | Suppress log output |\n| -w, --width | Width of the page. Optional. Default: 800 |\n"}}},{"rowIdx":882,"cells":{"repoName":{"kind":"string","value":"LNThanhNhan_homework_near_app_day1"},"tree":{"kind":"string","value":".gitpod.yml\nREADME.md\ncontract\n Cargo.toml\n README.md\n neardev\n dev-account.env\n src\n lib.rs\n target\n .rustc_info.json\nfrontend\n App.js\n dist\n index.521b6793.js\n index.5bcde184.js\n index.cc397963.js\n index.d6a4dc8d.js\n index.html\n index.html\n index.js\n near-api.js\n near-config.js\n package-lock.json\n package.json\n ui-components.js\nintegration-tests\n package-lock.json\n package.json\n src\n main.ava.ts\npackage-lock.json\npackage.json\n"},"readme":{"kind":"string","value":"Hello NEAR!\n=================================\n\nA [smart contract] written in [Rust] for an app initialized with [create-near-app]\n\nQuick Start\n===========\n\nBefore you compile this code, you will need to install Rust with [correct target]\n\nExploring The Code\n==================\n\n1. The main smart contract code lives in `src/lib.rs`.\n2. There are two functions to the smart contract: `get_greeting` and `set_greeting`.\n3. Tests: You can run smart contract tests with the `cargo test`.\n\n [smart contract]: https://docs.near.org/develop/welcome\n [Rust]: https://www.rust-lang.org/\n [create-near-app]: https://github.com/near/create-near-app\n [correct target]: https://docs.near.org/develop/prerequisites#rust-and-wasm\n [cargo]: https://doc.rust-lang.org/book/ch01-03-hello-cargo.html\nnear-blank-project\n==================\n\nThis app was initialized with [create-near-app]\n\nQuick Start\n===========\n\nIf you haven't installed dependencies during setup:\n\n npm run deps-install\n\nBuild and deploy your contract to TestNet with a temporary dev account:\n\n npm run deploy\n\nTest your contract:\n\n npm test\n\nIf you have a frontend, run `npm start`. This will run a dev server.\n\nExploring The Code\n==================\n\n1. The smart-contract code lives in the `/contract` folder. See the README there for\n more info. In blockchain apps the smart contract is the \"backend\" of your app.\n2. The frontend code lives in the `/frontend` folder. `/frontend/index.html` is a great\n place to start exploring. Note that it loads in `/frontend/index.js`,\n this is your entrypoint to learn how the frontend connects to the NEAR blockchain.\n3. Test your contract: `npm test`, this will run the tests in `integration-tests` directory.\n\nDeploy\n======\n\nEvery smart contract in NEAR has its [own associated account][NEAR accounts]. \nWhen you run `npm run deploy`, your smart contract gets deployed to the live NEAR TestNet with a temporary dev account.\nWhen you're ready to make it permanent, here's how:\n\nStep 0: Install near-cli (optional)\n-------------------------------------\n\n[near-cli] is a command line interface (CLI) for interacting with the NEAR blockchain. It was installed to the local `node_modules` folder when you ran `npm install`, but for best ergonomics you may want to install it globally:\n\n npm install --global near-cli\n\nOr, if you'd rather use the locally-installed version, you can prefix all `near` commands with `npx`\n\nEnsure that it's installed with `near --version` (or `npx near --version`)\n\nStep 1: Create an account for the contract\n------------------------------------------\n\nEach account on NEAR can have at most one contract deployed to it. If you've already created an account such as `your-name.testnet`, you can deploy your contract to `near-blank-project.your-name.testnet`. Assuming you've already created an account on [NEAR Wallet], here's how to create `near-blank-project.your-name.testnet`:\n\n1. Authorize NEAR CLI, following the commands it gives you:\n\n near login\n\n2. Create a subaccount (replace `YOUR-NAME` below with your actual account name):\n\n near create-account near-blank-project.YOUR-NAME.testnet --masterAccount YOUR-NAME.testnet\n\nStep 2: deploy the contract\n---------------------------\n\nUse the CLI to deploy the contract to TestNet with your account ID.\nReplace `PATH_TO_WASM_FILE` with the `wasm` that was generated in `contract` build directory.\n\n near deploy --accountId near-blank-project.YOUR-NAME.testnet --wasmFile PATH_TO_WASM_FILE\n\nStep 3: set contract name in your frontend code\n-----------------------------------------------\n\nModify the line in `src/config.js` that sets the account name of the contract. Set it to the account id you used above.\n\n const CONTRACT_NAME = process.env.CONTRACT_NAME || 'near-blank-project.YOUR-NAME.testnet'\n\nTroubleshooting\n===============\n\nOn Windows, if you're seeing an error containing `EPERM` it may be related to spaces in your path. Please see [this issue](https://github.com/zkat/npx/issues/209) for more details.\n\n [create-near-app]: https://github.com/near/create-near-app\n [Node.js]: https://nodejs.org/en/download/package-manager/\n [jest]: https://jestjs.io/\n [NEAR accounts]: https://docs.near.org/concepts/basics/account\n [NEAR Wallet]: https://wallet.testnet.near.org/\n [near-cli]: https://github.com/near/near-cli\n [gh-pages]: https://github.com/tschaub/gh-pages\n"}}},{"rowIdx":883,"cells":{"repoName":{"kind":"string","value":"hkuspace-pu_COMP-3000-Ngan-Tsz-Chung-FYP"},"tree":{"kind":"string","value":".gitpod.yml\nREADME.md\nblockchain_mobile_application_demo\n Blockchain\n .idea\n compiler.xml\n gradle.xml\n misc.xml\n vcs.xml\n app\n release\n output-metadata.json\n src\n main\n AndroidManifest.xml\n res\n drawable-v24\n ic_launcher_foreground.xml\n drawable\n ic_launcher_background.xml\n layout\n activity_edit.xml\n activity_main.xml\n list_item_block.xml\n mipmap-anydpi-v26\n ic_launcher.xml\n ic_launcher_round.xml\n values-night\n themes.xml\n values\n colors.xml\n strings.xml\n themes.xml\n xml\n backup_rules.xml\n data_extraction_rules.xml\n gradlew.bat\ncontract\n README.md\n babel.config.json\n build.sh\n build\n builder.c\n code.h\n hello_near.js\n methods.h\n deploy.sh\n neardev\n dev-account.env\n package-lock.json\n package.json\n src\n contract.ts\n model.ts\n tsconfig.json\nfrontend\n App.js\n Components\n AddCandidate.js\n AddVoting.js\n Home.js\n Login.js\n VotingPage.js\n assets\n global.css\n logo-black.svg\n logo-white.svg\n dist\n frontend.3464ddca.js\n index.ab0485ab.css\n index.bc0daea6.css\n index.html\n logo-black.4514ed42.svg\n logo-white.a7716062.svg\n index.html\n index.js\n near-interface.js\n near-wallet.js\n package-lock.json\n package.json\n start.sh\nintegration-tests\n package-lock.json\n package.json\n src\n main.ava.ts\npackage-lock.json\npackage.json\n"},"readme":{"kind":"string","value":"Blockchain in e-voting\n======================\n\nThis app was initialized with [create-near-app]\nThe aim of this project is for education only. \nIt is developed for knowing more about how the blockchain \nenhance the security in e-voting.\n\nQuick Start\n===========\n\nBuild and deploy your contract to TestNet with a temporary dev account:\n\n yarn deploy\n\nRun the application:\n\n yarn start\n\nIf you have a frontend, run `npm start`. This will run a dev server.\n\nContact\n=======\n\nE-mail:tze.ngan@students.plymouth.ac.uk\n\nModify Block in Android Demo\n============================\n\nuse /blockchain_mobile_application_demo/blockchain_mobile_application_demo.apk\n\nReference\n=========\n\n [create-near-app]: https://github.com/near/create-near-app\n [Node.js]: https://nodejs.org/en/download/package-manager/\n [jest]: https://jestjs.io/\n [NEAR accounts]: https://docs.near.org/concepts/basics/account\n [NEAR Wallet]: https://wallet.testnet.near.org/\n [near-cli]: https://github.com/near/near-cli\n# Hello NEAR Contract\n\nThe smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.\n\n```ts\n@NearBindgen({})\nclass HelloNear {\n greeting: string = \"Hello\";\n\n @view // This method is read-only and can be called for free\n get_greeting(): string {\n return this.greeting;\n }\n\n @call // This method changes the state, for which it cost gas\n set_greeting({ greeting }: { greeting: string }): void {\n // Record a log permanently to the blockchain!\n near.log(`Saving greeting ${greeting}`);\n this.greeting = greeting;\n }\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\nnpm run deploy\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\n<br />\n\n## 2. Retrieve the Greeting\n\n`get_greeting` is a read-only method (aka `view` method).\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\n# Use near-cli to get the greeting\nnear view <dev-account> get_greeting\n```\n\n<br />\n\n## 3. Store a New Greeting\n`set_greeting` changes the contract's state, for which it is a `call` method.\n\n`Call` methods can only be invoked using a NEAR account, since the account needs to pay GAS for the transaction.\n\n```bash\n# Use near-cli to set a new greeting\nnear call <dev-account> set_greeting '{\"greeting\":\"howdy\"}' --accountId <dev-account>\n```\n\n**Tip:** If you would like to call `set_greeting` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n"}}},{"rowIdx":884,"cells":{"repoName":{"kind":"string","value":"jerryno6_starter--AssemblyScript"},"tree":{"kind":"string","value":"README.md\nas-pect.config.js\nasconfig.json\npackage-lock.json\npackage.json\nscripts\n 1.init.sh\n 2.run.sh\n README.md\nsrc\n as-pect.d.ts\n as_types.d.ts\n sample\n README.md\n __tests__\n README.md\n index.unit.spec.ts\n asconfig.json\n assembly\n index.ts\n tsconfig.json\n utils.ts\n"},"readme":{"kind":"string","value":"\n\n## Design\n\n### Interface\n\n```ts\nexport function showYouKnow(): void;\n```\n\n- \"View\" function (ie. a function that does NOT alter contract state)\n- Takes no parameters\n- Returns nothing\n\n```ts\nexport function showYouKnow2(): bool;\n```\n\n- \"View\" function (ie. a function that does NOT alter contract state)\n- Takes no parameters\n- Returns true\n\n```ts\nexport function sayHello(): string;\n```\n\n- \"View\" function\n- Takes no parameters\n- Returns a string\n\n```ts\nexport function sayMyName(): string;\n```\n\n- \"Change\" function (although it does NOT alter state, it DOES read from `context`, [see docs for details](https://docs.near.org/docs/develop/contracts/as/intro))\n- Takes no parameters\n- Returns a string\n\n```ts\nexport function saveMyName(): void;\n```\n\n- \"Change\" function (ie. a function that alters contract state)\n- Takes no parameters\n- Saves the sender account name to contract state\n- Returns nothing\n\n```ts\nexport function saveMyMessage(message: string): bool;\n```\n\n- \"Change\" function\n- Takes a single parameter message of type string\n- Saves the sender account name and message to contract state\n- Returns nothing\n\n```ts\nexport function getAllMessages(): Array<string>;\n```\n\n- \"Change\" function\n- Takes no parameters\n- Reads all recorded messages from contract state (this can become expensive!)\n- Returns an array of messages if any are found, otherwise empty array\n## Unit tests\n\nUnit tests can be run from the top level folder using the following command:\n\n```\nyarn test:unit\n```\n\n### Tests for Contract in `index.unit.spec.ts`\n\n```\n[Describe]: Greeting\n\n [Success]: ✔ should respond to showYouKnow()\n [Success]: ✔ should respond to showYouKnow2()\n [Success]: ✔ should respond to sayHello()\n [Success]: ✔ should respond to sayMyName()\n [Success]: ✔ should respond to saveMyName()\n [Success]: ✔ should respond to saveMyMessage()\n [Success]: ✔ should respond to getAllMessages()\n\n [File]: src/sample/__tests__/index.unit.spec.ts\n [Groups]: 2 pass, 2 total\n [Result]: ✔ PASS\n[Snapshot]: 0 total, 0 added, 0 removed, 0 different\n [Summary]: 7 pass, 0 fail, 7 total\n [Time]: 19.164ms\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n [Result]: ✔ PASS\n [Files]: 1 total\n [Groups]: 2 count, 2 pass\n [Tests]: 7 pass, 0 fail, 7 total\n [Time]: 8217.768ms\n✨ Done in 8.86s.\n```\n# Sample\n\nThis repository includes a complete project structure for AssemblyScript contracts targeting the NEAR platform.\n\nWatch this video where Willem Wyndham walks us through refactoring a simple example of a NEAR smart contract written in AssemblyScript\n\nhttps://youtu.be/QP7aveSqRPo\n\n```\nThere are 2 \"styles\" of implementing AssemblyScript NEAR contracts: \n- the contract interface can either be a collection of exported functions \n- or the contract interface can be the methods of a an exported class\n\nWe call the second style \"Singleton\" because there is only one instance of the class which is serialized to the blockchain storage. Rust contracts written for NEAR do this by default with the contract struct.\n\n 0:00 noise (to cut)\n 0:10 Welcome\n 0:59 Create project starting with \"npm init\"\n 2:20 Customize the project for AssemblyScript development\n 9:25 Import the Counter example and get unit tests passing\n18:30 Adapt the Counter example to a Singleton style contract\n21:49 Refactoring unit tests to access the new methods\n24:45 Review and summary\n```\n\nThe example here is very basic. It's a simple contract demonstrating the following concepts:\n- a single contract\n- the difference between `view` vs. `change` methods\n- basic contract storage\n\nThe goal of this repository is to make it as easy as possible to get started writing unit and simulation tests for AssemblyScript contracts built to work with NEAR Protocol.\n\n## Usage\n\n### Getting started\n\n1. clone this repo to a local folder\n2. run `yarn`\n3. run `yarn test`\n\n### Top-level `yarn` commands\n\n- run `yarn test` to run all tests\n - (!) be sure to run `yarn build:release` at least once before:\n - run `yarn test:unit` to run only unit tests\n - run `yarn test:simulate` to run only simulation tests\n- run `yarn build` to quickly verify build status\n- run `yarn clean` to clean up build folder\n\n### Other documentation\n\n- Sample contract and test documentation\n - see `/src/sample/README` for contract interface\n - see `/src/sample/__tests__/README` for Sample unit testing details\n\n- Sample contract simulation tests\n - see `/simulation/README` for simulation testing\n\n## The file system\n\nPlease note that boilerplate project configuration files have been ommitted from the following lists for simplicity.\n\n### Contracts and Unit Tests\n\n```txt\nsrc\n├── sample <-- sample contract\n│ ├── README.md\n│ ├── __tests__\n│ │ ├── README.md\n│ │ └── index.unit.spec.ts\n│ └── assembly\n│ └── index.ts\n└── utils.ts <-- shared contract code\n```\n\n### Helper Scripts\n\n```txt\nscripts\n├── 1.init.sh\n├── 2.run.sh\n└── README.md <-- instructions\n```\n## Setting up your terminal\n\nThe scripts in this folder support a simple demonstration of the contract.\n\nIt uses the following setup:\n\n```txt\n┌───────────────────────────────────────┬───────────────────────────────────────┐\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ A │ B │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n│ │ │\n└───────────────────────────────────────┴───────────────────────────────────────┘\n```\n\n### Terminal **A**\n\n*This window is used to compile, deploy and control the contract*\n- Environment\n ```sh\n export CONTRACT= # depends on deployment\n export OWNER= # any account you control\n\n # for example\n # export CONTRACT=dev-1615190770786-2702449\n # export OWNER=sherif.testnet\n ```\n\n- Commands\n ```sh\n 1.init.sh # cleanup, compile and deploy contract\n 2.run.sh # call methods on the deployed contract\n ```\n\n### Terminal **B**\n\n*This window is used to render the contract account storage*\n- Environment\n ```sh\n export CONTRACT= # depends on deployment\n\n # for example\n # export CONTRACT=dev-1615190770786-2702449\n ```\n\n- Commands\n ```sh\n # monitor contract storage using near-account-utils\n # https://github.com/near-examples/near-account-utils\n watch -d -n 1 yarn storage $CONTRACT\n ```\n---\n\n## OS Support\n\n### Linux\n\n- The `watch` command is supported natively on Linux\n- To learn more about any of these shell commands take a look at [explainshell.com](https://explainshell.com)\n\n### MacOS\n\n- Consider `brew info visionmedia-watch` (or `brew install watch`)\n\n### Windows\n\n- Consider this article: [What is the Windows analog of the Linux watch command?](https://superuser.com/questions/191063/what-is-the-windows-analog-of-the-linux-watch-command#191068)\n"}}},{"rowIdx":885,"cells":{"repoName":{"kind":"string","value":"pmespresso_direct-revelation-dao"},"tree":{"kind":"string","value":".gitpod.yml\nREADME.md\ncontract\n Cargo.toml\n README.md\n build.sh\n deploy.sh\n src\n lib.rs\n policy.rs\n proposals.rs\n types.rs\n upgrade.rs\n views.rs\n target\n .rustc_info.json\n debug\n .fingerprint\n Inflector-778f054d6abc56ef\n lib-inflector.json\n ahash-97381fed487b9101\n build-script-build-script-build.json\n ahash-c57412b343faddf3\n lib-ahash.json\n ahash-cea78debba070bb8\n run-build-script-build-script-build.json\n arrayref-c2749b0c05da3169\n lib-arrayref.json\n arrayvec-ad64c20a53d6a7dd\n lib-arrayvec.json\n 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unicode-normalization-7ccd42674e081f80\n lib-unicode-normalization.json\n unicode-xid-0a4addf918b88e35\n lib-unicode-xid.json\n url-427b7b3118985614\n lib-url.json\n uuid-5e95721598883b18\n lib-uuid.json\n version_check-7146a9efc0d7c0c3\n lib-version_check.json\n waker-fn-4a71b8d04810efb1\n lib-waker-fn.json\n waker-fn-9de293e0cf95fe92\n lib-waker-fn.json\n want-4d0b61938f178134\n lib-want.json\n workspaces-29cb90cef3661ef8\n build-script-build-script-build.json\n workspaces-b26299e5ca1e3125\n run-build-script-build-script-build.json\n workspaces-f783fdfcb5f8c9d1\n lib-workspaces.json\n xattr-14b3f68b97534b64\n lib-xattr.json\n xattr-3ef1944723ef0d67\n lib-xattr.json\n zeroize-63559140b75ca5c3\n lib-zeroize.json\n zeroize_derive-cd7388c0571ca931\n lib-zeroize_derive.json\n zip-b40a86c852fa8216\n lib-zip.json\n zip-bd00f969361e966e\n lib-zip.json\n build\n anyhow-3c87c1b6999c5c72\n out\n probe.rs\n bzip2-sys-32548bc4dd07232b\n out\n include\n bzlib.h\n crunchy-e1a1a09b79160852\n out\n lib.rs\n num-bigint-1de3111c8367b596\n out\n radix_bases.rs\n reed-solomon-erasure-815ef5943d0f3e23\n out\n table.rs\n secp256k1-sys-00a0ff571606e6a4\n out\n flag_check.c\n thiserror-b1e0f8ef357299bc\n out\n probe.rs\n typenum-cf5ca8ae7bb3b4a3\n out\n consts.rs\n op.rs\n tests.rs\nPublic header file for the library. \n bzlib.h\nend bzlib.h\npackage-lock.json\npackage.json\n"},"readme":{"kind":"string","value":"# meta-dao\n\nMeta DAO is a fork of Sputnik DAO with bounties and delegation logic removed. The point was to add the Price Ascension mechanism described in https://a16zcrypto.com/paying-people-to-participate-in-governance/ to an existing DAO.\n\nThe contract has been deployed on Testnet to: https://explorer.testnet.near.org/transactions/CiPyFYost4apKbfd2L7BCgh1bi9DY7oD5C1anvd2Y19P\n\n# Quick Start\n\n`cd contracts && cargo test`\n\n# Summary\n\n\n\n## Inspiration\n\nhttps://a16zcrypto.com/paying-people-to-participate-in-governance/\n\n## What it does\n\nEvery time there is a proposal up for vote, we take the `proposal_period` and chunk it up into `N` discrete buckets. At the end of each bucket, the offered reward for voting steps up to the next bracket. At the end of the voting period, some random `threshold_block` is chosen at which point all further votes will be counted toward the final vote, but not rewarded directly. Hence it is in the voters' interest to: a) carefully analyze their real cost of voting and b) submit a vote as close to when the the proposed reward by the DAO surpasses it.\n\nThere is seemingly the incentive to delay indefinitely in order to maximize rewards, but the caveat is that they run the risk of delaying past the threshold block (which is determined retroactively) and hence being frozen out of rewards entirely.\n\n## Challenges we ran into\n\n- provably fair method of picking `N`\n\n## Accomplishments that we're proud of\n\n- Groking and implementing the research article in just a few days while also learning how NEAR works from scratch\n- Actually writing some Rust code that works (after being scared away by Substrate years ago)\n\n## What we learned\n\n- All the `near_sdk` types and blockchian specific primitives to use out of the box\n- All the testing tools provided by `near_sdk`\n- How a NEAR DAO is structured (with the Sputnik example)\n\n## What's next for Meta DAO\n\n- pick `N` retroactively in a provably fair / random way (maybe like [Polkadot's Candle Auctions] (https://polkadot.network/blog/research-update-the-case-for-candle-auctions/))\n- build a UI and a community around it to play with it\n# Hello NEAR Contract\n\nThe smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.\n\n```rust\nconst DEFAULT_GREETING: &str = \"Hello\";\n\n#[near_bindgen]\n#[derive(BorshDeserialize, BorshSerialize)]\npub struct Contract {\n greeting: String,\n}\n\nimpl Default for Contract {\n fn default() -> Self {\n Self{greeting: DEFAULT_GREETING.to_string()}\n }\n}\n\n#[near_bindgen]\nimpl Contract {\n // Public: Returns the stored greeting, defaulting to 'Hello'\n pub fn get_greeting(&self) -> String {\n return self.greeting.clone();\n }\n\n // Public: Takes a greeting, such as 'howdy', and records it\n pub fn set_greeting(&mut self, greeting: String) {\n // Record a log permanently to the blockchain!\n log!(\"Saving greeting {}\", greeting);\n self.greeting = greeting;\n }\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [rust](https://rust.org/).\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\n./deploy.sh\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\n<br />\n\n## 2. Retrieve the Greeting\n\n`get_greeting` is a read-only method (aka `view` method).\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\n# Use near-cli to get the greeting\nnear view <dev-account> get_greeting\n```\n\n<br />\n\n## 3. Store a New Greeting\n`set_greeting` changes the contract's state, for which it is a `change` method.\n\n`Change` methods can only be invoked using a NEAR account, since the account needs to pay GAS for the transaction.\n\n```bash\n# Use near-cli to set a new greeting\nnear call <dev-account> set_greeting '{\"message\":\"howdy\"}' --accountId <dev-account>\n```\n\n**Tip:** If you would like to call `set_greeting` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n"}}},{"rowIdx":886,"cells":{"repoName":{"kind":"string","value":"happyfisherod_nft-market-solana"},"tree":{"kind":"string","value":".eslintrc.js\n.github\n workflows\n node.js.yml\nREADME.md\nchangelog.md\ncontracts\n ft\n Cargo.toml\n README.md\n build.sh\n src\n fungible_token_core.rs\n fungible_token_metadata.rs\n internal.rs\n lib.rs\n storage_manager.rs\n market-simple\n Cargo.toml\n README.md\n build.sh\n src\n external.rs\n ft_callbacks.rs\n internal.rs\n lib.rs\n nft_callbacks.rs\n sale.rs\n sale_views.rs\n nft-simple\n Cargo.toml\n README.md\n build.sh\n src\n burn.rs\n enumerable.rs\n internal.rs\n lib.rs\n metadata.rs\n mint.rs\n nft_core.rs\n token.rs\njest.config.js\nneardev\n dev-account.env\n testnet\n dev-1631674746071-10762231497625.json\npackage.json\nsrc\n App.js\n components\n Contract.js\n Gallery.js\n Token.js\n Wallet.js\n config.js\n img\n near_icon.svg\n index.html\n index.js\n state\n actions.js\n app.js\n near.js\n views.js\n utils\n history.js\n mobile.js\n near-utils.js\n state.js\n storage.js\ntest\n app.test.js\n near-utils.js\n test-utils.js\nutils\n deploy.js\n hoist-credentials.js\n patch-config.js\n patch-deploy-config.js\n"},"readme":{"kind":"string","value":"Minimal NEP141 + Metadata Token Launcher\n\nTBD\n\nFork of: https://github.com/mikedotexe/nep-141-examples (basic)\n# TBD\n# TBD\n# NFT Market Reference Implementation\n\nA PoC backbone for NFT Marketplaces on NEAR Protocol.\n\n[Reference](https://nomicon.io/Standards/NonFungibleToken/README.html)\n\n# Changelog\n\n[Changelog](changelog.md)\n\n## Progress:\n- [x] basic purchase of NFT with FT\n- [x] demo pay out royalties (FTs and NEAR)\n- [x] test and determine standards for markets (best practice?) to buy/sell NFTs (finish standard) with FTs (already standard)\n- [x] demo some basic auction types, secondary markets and \n- [x] frontend example\n- [x] first pass / internal audit\n- [ ] connect with bridged tokens e.g. buy and sell with wETH/nDAI (or whatever we call these)\n\n## Known Issues / Implementation Details for Markets\n\n* approve NFT on marketplace A and B\n* it sells on B\n* still listed on A\n* user Alice goes to purchase on marketplace A but this will fail\n* the token has been transferred already and marketplace A has an incorrect approval ID for this NFT\n\nThere are 3 potential solutions:\n\n1. handle in market contract - When it fails because nft_transfer fails, marketplace could make promise call that checks nft_token owner_id is still sale owner_id and remove sale. This means it will still fail for 1 user.\n2. handle with backend - run a cron job to check sales on a regular interval. This potentially avoids failing for any user.\n3. remove from frontend (use frontend or backend) - for every sale, check that sale.owner_id == nft.owner_id and then hide these sale options in the frontend UI. Heavy processing for client side, so still needs a backend.\n4. let it fail client side then alert backend to remove sale. No cron. Still fails for 1 user.\n\nMatt's opinion:\nOption (2/3) is the best UX and also allows your sale listings to be the most accurate and up to date. If you're implementing a marketplace, you most likely are running backend somewhere with the marketplace owner account. If you go with Option 3 you can simply update a list of \"invalid sales\" and filter these before you send the sales listings to the client. If you decided to go with 2, modify the marketplace remove_sale to allow your marketplace owner account to remove any sales. \n\n## Notes:\n\nHigh level diagram of NFT sale on Market using Fungible Token:\n\n\nRemove the FT steps for NEAR transfers (but nft_transfer_payout and resolve_purchase still the same).\n\nDifferences from `nft-simple` NFT standard reference implementation:\n- anyone can mint an NFT\n- Optional token_type\n- capped supply by token_type\n- lock transfers by token_token\n- enumerable.rs\n\n## Working\n\n**Frontend App Demo: `/test/app.test.js/`**\n- install, deploy, test `yarn && yarn test:deploy`\n- run app - `yarn start`\n\n**App Tests: `/test/app.test.js/`**\n- install, deploy, test `yarn && yarn test:deploy`\n- if you update contracts - `yarn test:deploy`\n- if you update tests only - `yarn test`\n\n# NFT Specific Notes\n\nAssociated Video Demos (most recent at top)\n\n[](https://www.youtube.com/watch?v=VWyQqj3Yw6E)\n\n[](https://www.youtube.com/watch?v=HYhFShQUKNk)\n\n[](https://www.youtube.com/watch?v=JRnWE9w-6pY)\n\nOlder Walkthrough Videos:\n\n[](https://www.youtube.com/watch?v=AevmMAtkIr4)\n\n[](https://youtu.be/sGTC3rs8OJQ)\n\nSome additional ideas around user onboarding:\n\n[](https://www.youtube.com/watch?v=59Lzt1PFF6I)\n\n# Detailed Installation / Quickstart\n\n#### If you don't have Rust\nInstall Rust https://rustup.rs/\n#### If you have never used near-cli\n1. Install near-cli: `npm i -g near-cli`\n2. Create testnet account: [Wallet](https://wallet.testnet.near.org)\n3. Login: `near login`\n#### Installing and Running Tests for this Example\n1. Install everything: `yarn && (cd server && yarn)`\n2. Deploy the contract and run the app tests: `yarn test:deploy`\n3. (WIP) Start server and run server tests: `cd server && yarn start` then in another terminal from the root `yarn test:server`\n\n#### Notes\n- If you ONLY change the JS tests use `yarn test`.\n- If you change the contract run `yarn test:deploy` again.\n- If you run out of funds in the dev account run `yarn test:deploy` again.\n- If you change the dev account (yarn test:deploy) the server should restart automatically, but you may need to restart the app and sign out/in again with NEAR Wallet.\n### Moar Context\n\nThere's 3 main areas to explore:\n- frontend app - shows how to create guest accounts that are added to the app contract via the nodejs server. Guests can mind NFTs, put them up for sale and earn NEAR tokens. When the guest has NEAR they can upgrade their account to a full account.\n- app.test.js (demos frontend only tests)\n\n### Owner Account, Token Account, etc...\n\nThe tests are set up to auto generate the dev account each time you run `test:deploy` **e.g. you will get a new NFT contract address each time you run a test**.\n\nThis is just for testing. You can obviously deploy a token to a fixed address on testnet / mainnet, it's an easy config update.\n\n#### Guests Account (key and tx gas sponsorship)\nWhen you run app / server tests. There's a contract deployed and a special account created `guests.OWNER_ACCOUNT_ID` to manage the sponsored users (the ones you will pay for gas fees while onboarding). This special \"guests\" account is different from the test guest account `bob.TOKEN_ID.OWNER_ACCOUNT_ID`. It is an account, different from the owner or token accounts, that manages the guests keys.\n\n#### Guest Accounts\nThe guest users can `claim_drop, ft_transfer_guest` and receive tokens from other users, e.g. in the server tests the owner transfers tokens to the guest account via API call and using client side code.\n\nThen, following the server tests, the guest transfers tokens to alice (who is a real NEAR account e.g. she pays her own gas).\n\nFinally, the guest upgrades themselves to a real NEAR account, something demoed in the video.\n\nIt's a lot to digest but if you focus on the `/test/app.test.js` you will start to see the patterns.\n# Background\n\nOne of the issues with onboarding new users to crypto is that they need to have crypto to do anything e.g. mint an NFT. A creator, artist or community might want to drop a bunch of free minting options to their fans for them to mint user generated content, but the audience has (1) no crypto to pay for fees (2) no wallet (3) no concept of crypto or blockchain; prior to the drop. \n\nSo let's solve these issues by allowing users to generate content the traditional Web2 way!\n\nWe do a demo of creating a \"guest\" named account for an app where the gas fees are sponsored by a special app account called \"guests.APP_NAME.near\". The guest account doesn't exist (sometimes called a virtual or contract account) until the user creates and sells and NFT that generates some NEAR tokens and then they can upgrade to a real account. Until then their name is reserved because only the app is able to create \"USERNAME.APP_NAME.near\".\n\nThis has many advantages for user onboarding, where users can use the app immediately and later can be upgraded to a full account. The users also don't have to move any assets - namely the fungible tokens they earned as a guest user. \n\n## Installation\n\nBeyond having npm and node (latest versions), you should have Rust installed. I recommend nightly because living on the edge is fun.\n\nhttps://rustup.rs/\n\n### Don't forget to install the wasm32 target:\n\n`rustup target add wasm32-unknown-unknown`\n\nAlso recommend installing near-cli globally\n\n`npm i -g near-cli`\n\nEverything else can be installed via:\n`yarn`\n`cd server && yarn`\n\n## NEAR Config\n\nThere is only one config.js file found in `src/config.js`, this is also used for running tests.\n\nUsing `src/config.js` you can set up your different environments. Use `REACT_APP_ENV` to switch environments e.g. in `package.json` script `deploy`.\n\n## Running Tests\n\nYou can run unit tests in the Rust contracts themselves, but it may be more useful to JS tests against testnet itself.\n\nNote: to run the app and server tests make sure you install and start the server.\n- cd server\n- yarn && yarn start\n\nCommands:\n- `test` will simply run app tests against the contract already deployed. You can mess around with `app.test.js` and try different frontend stuff\n- `test:deploy` - will deploy a new dev account (`/neardev`) and deploy a new contract to this account, then run `test`\n- `test:server` - will test the server, make sure you start it (see \"Note\" above)\n- `test:unit` - runs the rust unit tests\n\nIf you've changed your contract or your dev account has run out of funds use `test:deploy`, if you're updating your JS tests only then use `test`.\n\n## Test Utils\n\nThere are helpers in `test/test-utils.js` that take care of:\n1. creating a near connection and establishing a keystore for the dev account\n2. creating test accounts each time a test is run\n3. establishing a contract instance so you can call methods\n\nYou can change the default funding amount for test accounts in `src/config.js`\n\n## Using the NEAR Config in your app\n\nIn `src/state/near.js` you will see that `src/config.js` is loaded as a function. This is to satisfy the jest/node test runner.\n\nYou can destructure any properies of the config easily in any module you import it in like this:\n\n```\n// example file app.js\n\nimport getConfig from '../config';\nexport const {\n\tGAS,\n\tnetworkId, nodeUrl, walletUrl, nameSuffix,\n\tcontractName,\n} = getConfig();\n```\nNote the export const in the destructuring?\n\nNow you can import these like so:\n```\n//example file Component.js\nimport { GAS } from '../app.js'\n...\nawait contract.withdraw({ amount: parseNearAmount('1') }, GAS)\n...\n```\n\n# React 17, Parcel with useContext and useReducer\n- Bundled with Parcel 2.0 (@next) && eslint\n- *Minimal all-in-one state management with async/await support*\n\n## Getting Started: State Store & useContext\n\n>The following steps describe how to use `src/utils/state` to create and use your own `store` and `StateProvider`.\n\n1. Create a file e.g. `/state/app.js` and add the following code\n```js\nimport { State } from '../utils/state';\n\n// example\nconst initialState = {\n\tapp: {\n\t\tmounted: false\n\t}\n};\n\nexport const { store, Provider } = State(initialState);\n```\n2. Now in your `index.js` wrap your `App` component with the `StateProvider`\n```js\nimport { Provider } from './state/app';\n\nReactDOM.render(\n <Provider>\n <App />\n </Provider>,\n document.getElementById('root')\n);\n```\n3. Finally in `App.js` you can `useContext(store)`\n```js\nconst { state, dispatch, update } = useContext(store);\n```\n\n## Usage in Components\n### Print out state values\n```js\n<p>Hello {state.foo && state.foo.bar.hello}</p>\n```\n### Update state directly in component functions\n```js\nconst handleClick = () => {\n update('clicked', !state.clicked);\n};\n```\n### Dispatch a state update function (action listener)\n```js\nconst onMount = () => {\n dispatch(onAppMount('world'));\n};\nuseEffect(onMount, []);\n```\n## Dispatched Functions with context (update, getState, dispatch)\n\nWhen a function is called using dispatch, it expects arguments passed in to the outer function and the inner function returned to be async with the following json args: `{ update, getState, dispatch }`\n\nExample of a call:\n```js\ndispatch(onAppMount('world'));\n```\n\nAll dispatched methods **and** update calls are async and can be awaited. It also doesn't matter what file/module the functions are in, since the json args provide all the context needed for updates to state.\n\nFor example:\n```js\nimport { helloWorld } from './hello';\n\nexport const onAppMount = (message) => async ({ update, getState, dispatch }) => {\n\tupdate('app', { mounted: true });\n\tupdate('clicked', false);\n\tupdate('data', { mounted: true });\n\tawait update('', { data: { mounted: false } });\n\n\tconsole.log('getState', getState());\n\n\tupdate('foo.bar', { hello: true });\n\tupdate('foo.bar', { hello: false, goodbye: true });\n\tupdate('foo', { bar: { hello: true, goodbye: false } });\n\tupdate('foo.bar.goodbye', true);\n\n\tawait new Promise((resolve) => setTimeout(() => {\n\t\tconsole.log('getState', getState());\n\t\tresolve();\n\t}, 2000));\n\n\tdispatch(helloWorld(message));\n};\n```\n## Prefixing store and Provider\n\nThe default names the `State` factory method returns are `store` and `Provider`. However, if you want multiple stores and provider contexts you can pass an additional `prefix` argument to disambiguate.\n\n```js\nexport const { appStore, AppProvider } = State(initialState, 'app');\n```\n\n## Performance and memo\n\nThe updating of a single store, even several levels down, is quite quick. If you're worried about components re-rendering, use `memo`:\n```js\nimport React, { memo } from 'react';\n\nconst HelloMessage = memo(({ message }) => {\n\tconsole.log('rendered message');\n\treturn <p>Hello { message }</p>;\n});\n\nexport default HelloMessage;\n```\nHigher up the component hierarchy you might have:\n```js\nconst App = () => {\n\tconst { state, dispatch, update } = useContext(appStore);\n ...\n\tconst handleClick = () => {\n\t\tupdate('clicked', !state.clicked);\n\t};\n\n\treturn (\n\t\t<div className=\"root\">\n\t\t\t<HelloMessage message={state.foo && state.foo.bar.hello} />\n\t\t\t<p>clicked: {JSON.stringify(state.clicked)}</p>\n\t\t\t<button onClick={handleClick}>Click Me</button>\n\t\t</div>\n\t);\n};\n```\nWhen the button is clicked, the component HelloMessage will not re-render, it's value has been memoized (cached). Using this method you can easily prevent performance intensive state updates in further down components until they are neccessary.\n\nReference:\n- https://reactjs.org/docs/context.html\n- https://dmitripavlutin.com/use-react-memo-wisely/\n"}}},{"rowIdx":887,"cells":{"repoName":{"kind":"string","value":"junkei-okinawa_near-election-dapp"},"tree":{"kind":"string","value":"near-election-dapp-contract\n Cargo.toml\n src\n enumeration.rs\n internal.rs\n lib.rs\n metadata.rs\n mint.rs\n nft_core.rs\n vote.rs\nnear-election-dapp-frontend\n .gitpod.yml\n README.md\n frontend\n App.js\n __mocks__\n fileMock.js\n assets\n AppRouter.js\n components\n candidate_card.js\n input_form.js\n title.js\n css\n global.css\n img\n logo-black.svg\n logo-white.svg\n js\n near\n config.js\n utils.js\n index.html\n index.js\n pages\n candidate.js\n home.js\n voter.js\n integration-tests\n package.json\n src\n config.ts\n main.ava.ts\n package-lock.json\n package.json\n tailwind.config.js\n"},"readme":{"kind":"string","value":"near-blank-project\n==================\n\nThis [React] app was initialized with [create-near-app]\n\nQuick Start\n===========\n\nTo run this project locally:\n\n1. Prerequisites: Make sure you've installed [Node.js] ≥ 12\n2. Install dependencies: `yarn install`\n3. Run the local development server: `yarn dev` (see `package.json` for a\n full list of `scripts` you can run with `yarn`)\n\nNow you'll have a local development environment backed by the NEAR TestNet!\n\nGo ahead and play with the app and the code. As you make code changes, the app will automatically reload.\n\nExploring The Code\n==================\n\n1. The \"backend\" code lives in the `/contract` folder. See the README there for\n more info.\n2. The frontend code lives in the `/frontend` folder. `/frontend/index.html` is a great\n place to start exploring. Note that it loads in `/frontend/assets/js/index.js`, where you\n can learn how the frontend connects to the NEAR blockchain.\n3. Tests: there are different kinds of tests for the frontend and the smart\n contract. See `contract/README` for info about how it's tested. The frontend\n code gets tested with [jest]. You can run both of these at once with `yarn\n run test`.\n\nDeploy\n======\n\nEvery smart contract in NEAR has its [own associated account][NEAR accounts]. When you run `yarn dev`, your smart contract gets deployed to the live NEAR TestNet with a throwaway account. When you're ready to make it permanent, here's how.\n\nStep 0: Install near-cli (optional)\n-------------------------------------\n\n[near-cli] is a command line interface (CLI) for interacting with the NEAR blockchain. It was installed to the local `node_modules` folder when you ran `yarn install`, but for best ergonomics you may want to install it globally:\n\n yarn install --global near-cli\n\nOr, if you'd rather use the locally-installed version, you can prefix all `near` commands with `npx`\n\nEnsure that it's installed with `near --version` (or `npx near --version`)\n\nStep 1: Create an account for the contract\n------------------------------------------\n\nEach account on NEAR can have at most one contract deployed to it. If you've already created an account such as `your-name.testnet`, you can deploy your contract to `near-blank-project.your-name.testnet`. Assuming you've already created an account on [NEAR Wallet], here's how to create `near-blank-project.your-name.testnet`:\n\n1. Authorize NEAR CLI, following the commands it gives you:\n\n near login\n\n2. Create a subaccount (replace `YOUR-NAME` below with your actual account name):\n\n near create-account near-blank-project.YOUR-NAME.testnet --masterAccount YOUR-NAME.testnet\n\nStep 2: set contract name in code\n---------------------------------\n\nModify the line in `src/config.js` that sets the account name of the contract. Set it to the account id you used above.\n\n const CONTRACT_NAME = process.env.CONTRACT_NAME || 'near-blank-project.YOUR-NAME.testnet'\n\nStep 3: deploy!\n---------------\n\nOne command:\n\n yarn deploy\n\nAs you can see in `package.json`, this does two things:\n\n1. builds & deploys smart contract to NEAR TestNet\n2. builds & deploys frontend code to GitHub using [gh-pages]. This will only work if the project already has a repository set up on GitHub. Feel free to modify the `deploy` script in `package.json` to deploy elsewhere.\n\nTroubleshooting\n===============\n\nOn Windows, if you're seeing an error containing `EPERM` it may be related to spaces in your path. Please see [this issue](https://github.com/zkat/npx/issues/209) for more details.\n\n [React]: https://reactjs.org/\n [create-near-app]: https://github.com/near/create-near-app\n [Node.js]: https://nodejs.org/en/download/package-manager/\n [jest]: https://jestjs.io/\n [NEAR accounts]: https://docs.near.org/docs/concepts/account\n [NEAR Wallet]: https://wallet.testnet.near.org/\n [near-cli]: https://github.com/near/near-cli\n [gh-pages]: https://github.com/tschaub/gh-pages\n"}}},{"rowIdx":888,"cells":{"repoName":{"kind":"string","value":"andersonferrari_near-sdk-playground"},"tree":{"kind":"string","value":"Cargo.toml\nREADME.md\nbuild.bat\nbuild.sh\nsrc\n lib.rs\ntest.sh\n"},"readme":{"kind":"string","value":"# Rust Smart Contract Template\n\n## Getting started\n\nTo get started with this template:\n\n1. Click the \"Use this template\" button to create a new repo based on this template\n2. Update line 2 of `Cargo.toml` with your project name\n3. Update line 4 of `Cargo.toml` with your project author names\n4. Set up the [prerequisites](https://github.com/near/near-sdk-rs#pre-requisites)\n5. Begin writing your smart contract in `src/lib.rs`\n6. Test the contract \n\n `cargo test -- --nocapture`\n\n8. Build the contract\n\n `RUSTFLAGS='-C link-arg=-s' cargo build --target wasm32-unknown-unknown --release`\n\n**Get more info at:**\n\n* [Rust Smart Contract Quick Start](https://docs.near.org/docs/develop/contracts/rust/intro)\n* [Rust SDK Book](https://www.near-sdk.io/)\n"}}},{"rowIdx":889,"cells":{"repoName":{"kind":"string","value":"Peersyst_theoutsidersart-nft"},"tree":{"kind":"string","value":".eslintrc.js\nREADME.md\nflatten.sh\nlib\n setupCreatureAccessories.js\n testValuesCommon.js\n valuesCommon.js\nmetadata-api\n app.py\n images\n output\n temp.txt\n requirements.txt\n src\n pip-delete-this-directory.txt\nmetadata\n index.js\nmigrations\n 1_initial_migrations.js\n 2_deploy_contracts.js\npackage.json\nscripts\n creature-accessories\n advanced\n mint.js\n initial_sale.js\n sell.js\n initial_sale.js\n mint.js\n sell.js\ntest\n CreatureAccessory.js\n CreatureAccessoryFactory.js\n CreatureAccessoryLootBox.js\n ERC1155Tradable.js\n utils\n signMetaTransaction.js\ntruffle.js\n"},"readme":{"kind":"string","value":"## OpenSea Creatures - Starter ERC721, ERC1155, and factory contracts\n\nWhat's included:\n\n### Sample ERC721/ERC1155 Contracts\n\nThis includes a very simple sample ERC721 / ERC1155 for the purposes of demonstrating integration with the [OpenSea](https://opensea.io) marketplace. We include a script for minting the items.\n\nAdditionally, this contract whitelists the proxy accounts of OpenSea users so that they are automatically able to trade the ERC721 item on OpenSea (without having to pay gas for an additional approval). On OpenSea, each user has a \"proxy\" account that they control, and is ultimately called by the exchange contracts to trade their items. (Note that this addition does not mean that OpenSea itself has access to the items, simply that the users can list them more easily if they wish to do so)\n\n### Factory Contracts\n\nIn addition to these template 721/1155 contracts, we provide sample factory contracts for running gas-free presales of items that haven't been minted yet. See https://docs.opensea.io/docs/opensea-initial-item-sale-tutorial for more info.\n\n## Requirements\n\n### Node version\n\nEither make sure you're running a version of node compliant with the `engines` requirement in `package.json`, or install Node Version Manager [`nvm`](https://github.com/creationix/nvm) and run `nvm use` to use the correct version of node.\n\n## Installation\n\nRun\n\n```bash\nyarn\n```\n\nIf you run into an error while building the dependencies and you're on a Mac, run the code below, remove your `node_modules` folder, and do a fresh `yarn install`:\n\n```bash\nxcode-select --install # Install Command Line Tools if you haven't already.\nsudo xcode-select --switch /Library/Developer/CommandLineTools # Enable command line tools\nsudo npm explore npm -g -- npm install node-gyp@latest # Update node-gyp\n```\n\n## Deploying\n\n### Deploying to the Rinkeby network.\n\n1. To access a Rinkeby testnet node, you'll need to sign up for [Alchemy](https://dashboard.alchemyapi.io/signup?referral=affiliate:e535c3c3-9bc4-428f-8e27-4b70aa2e8ca5) and get a free API key. Click \"View Key\" and then copy the part of the URL after `v2/`.\n a. You can use [Infura](https://infura.io) if you want as well. Just change `ALCHEMY_KEY` below to `INFURA_KEY`.\n2. Using your API key and the mnemonic for your Metamask wallet (make sure you're using a Metamask seed phrase that you're comfortable using for testing purposes), run:\n\n```\nexport ALCHEMY_KEY=\"<your_alchemy_project_id>\"\nexport MNEMONIC=\"<metmask_mnemonic>\"\nDEPLOY_CREATURES_SALE=1 yarn truffle deploy --network rinkeby\n```\n\n### Minting tokens.\n\nAfter deploying to the Rinkeby network, there will be a contract on Rinkeby that will be viewable on [Rinkeby Etherscan](https://rinkeby.etherscan.io). For example, here is a [recently deployed contract](https://rinkeby.etherscan.io/address/0xeba05c5521a3b81e23d15ae9b2d07524bc453561). You should set this contract address and the address of your Metamask account as environment variables when running the minting script. If a [CreatureFactory was deployed](https://github.com/ProjectOpenSea/opensea-creatures/blob/master/migrations/2_deploy_contracts.js#L38), which the sample deploy steps above do, you'll need to specify its address below as it will be the owner on the NFT contract, and only it will have mint permissions. In that case, you won't need NFT_CONTRACT_ADDRESS, as all we need is the contract with mint permissions here.\n\n```\nexport OWNER_ADDRESS=\"<my_address>\"\nexport NFT_CONTRACT_ADDRESS=\"<deployed_contract_address>\"\nexport FACTORY_CONTRACT_ADDRESS=\"<deployed_factory_contract_address>\"\nexport NETWORK=\"rinkeby\"\nnode scripts/mint.js\n```\n\n### Diagnosing Common Issues\n\nIf you're running a modified version of `sell.js` and not getting expected behavior, check the following:\n\n- Is the `expirationTime` in future? If no, change it to a time in the future.\n\n- Is the `expirationTime` a fractional second? If yes, round the listing time to the nearest second.\n\n- Are the input addresses all strings? If no, convert them to strings.\n\n- Are the input addresses checksummed? You might need to use the checksummed version of the address.\n\n- Is your computer's internal clock accurate? If no, try enabling automatic clock adjustment locally or following [this tutorial](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-time.html) to update an Amazon EC2 instance.\n\n- Do you have any conflicts that result from globally installed node packages? If yes, try `yarn remove -g truffle; yarn`\n\n- Are you running a version of node compliant with the `engines` requirement in `package.json`? If no, try `nvm use; rm -rf node_modules; yarn`\n\n# About OpenSea Creature Accessories\n\nThis is a sample ERC-1155 contract for the purposes of demonstrating integration with the [OpenSea](https://opensea.io) marketplace for crypto collectibles. We also include:\n\n- A factory contract for making sell orders for unminted items (allowing for **gas-free and mint-free presales**).\n- A configurable lootbox contract for selling randomized collections of ERC-1155 items.\n\nOn top of the features from the OpenSea ERC721 sample contracts above, ERC1155\n\n- supports multiple creators per contract, where only the creator is able to mint more copies\n- supports pre-minted items for the lootbox to choose from\n\n## Configuring the Lootbox\n\nOpen CreatureAccessoryLootbox.sol\n\n1. Change `Class` to reflect your rarity levels.\n2. Change `NUM_CLASSES` to reflect how many classes you have (this gets used for sizing fixed-length arrays in Solidity)\n3. In `constructor`, set the `OptionSettings` for each of your classes. To do this, as in the example, call `setOptionSettings` with\n 1. Your option id,\n 2. The number of items to issue when the box is opened,\n 3. An array of probabilities (basis points, so integers out of 10,000) of receiving each class. Should add up to 10k and be descending in value.\n4. Then follow the instructions below to deploy it! Purchases will auto-open the box. If you'd like to make lootboxes tradable by users (without a purchase auto-opening it), contact us at contact@opensea.io (or better yet, in [Discord](https://discord.gg/ga8EJbv)).\n\n## Why are some standard methods overridden?\n\nThis contract overrides the `isApprovedForAll` method in order to whitelist the proxy accounts of OpenSea users. This means that they are automatically able to trade your ERC-1155 items on OpenSea (without having to pay gas for an additional approval). On OpenSea, each user has a \"proxy\" account that they control, and is ultimately called by the exchange contracts to trade their items.\n\nNote that this addition does not mean that OpenSea itself has access to the items, simply that the users can list them more easily if they wish to do so!\n\n# Requirements\n\n### Node version\n\nEither make sure you're running a version of node compliant with the `engines` requirement in `package.json`, or install Node Version Manager [`nvm`](https://github.com/creationix/nvm) and run `nvm use` to use the correct version of node.\n\n## Installation\n\nRun\n\n```bash\nyarn\n```\n\n## Deploying\n\n### Deploying to the Rinkeby network.\n\n1. Follow the steps above to get a Rinkeby node API key\n2. Using your API key and the mnemonic for your MetaMask wallet (make sure you're using a MetaMask seed phrase that you're comfortable using for testing purposes), run:\n\n```\nexport ALCHEMY_KEY=\"<alchemy_project_id>\" # or you can use INFURA_KEY\nexport MNEMONIC=\"<metmask_mnemonic>\"\nDEPLOY_ACCESSORIES_SALE=1 yarn truffle migrate --network rinkeby\n```\n\n### Deploying to the mainnet Ethereum network.\n\nMake sure your wallet has at least a few dollars worth of ETH in it. Then run:\n\n```\nyarn truffle migrate --network live\n```\n\nLook for your newly deployed contract address in the logs! 🥳\n\n### Viewing your items on OpenSea\n\nOpenSea will automatically pick up transfers on your contract. You can visit an asset by going to `https://opensea.io/assets/CONTRACT_ADDRESS/TOKEN_ID`.\n\nTo load all your metadata on your items at once, visit [https://opensea.io/get-listed](https://opensea.io/get-listed) and enter your address to load the metadata into OpenSea! You can even do this for the Rinkeby test network if you deployed there, by going to [https://rinkeby.opensea.io/get-listed](https://rinkeby.opensea.io/get-listed).\n\n### Troubleshooting\n\n#### It doesn't compile!\n\nInstall truffle locally: `yarn add truffle`. Then run `yarn truffle migrate ...`.\n\nYou can also debug just the compile step by running `yarn truffle compile`.\n\n#### It doesn't deploy anything!\n\nThis is often due to the truffle-hdwallet provider not being able to connect. Go to your [Alchemy Dashboard](https://dashboard.alchemyapi.io/signup?referral=affiliate:e535c3c3-9bc4-428f-8e27-4b70aa2e8ca5) (or infura.io) and create a new project. Use your \"project ID\" as your new `ALCHEMY_KEY` and make sure you export that command-line variable above.\n\n### ERC1155 Implementation\n\nTo implement the ERC1155 standard, these contracts use the Multi Token Standard by [Horizon Games](https://horizongames.net/), available on [npm](https://www.npmjs.com/package/multi-token-standard) and [github](https://github.com/arcadeum/multi-token-standard) and also under the MIT License.\n\n# Running Local Tests\n\nIn one terminal window, run:\n\n yarn run ganache-cli\n\nOnce Ganache has started, run the following in another terminal window:\n\n yarn run test\n"}}},{"rowIdx":890,"cells":{"repoName":{"kind":"string","value":"mehmetali765_DemoNameSuggestionProject"},"tree":{"kind":"string","value":"README.md\nas-pect.config.js\nasconfig.json\npackage.json\nscripts\n 1.build-deploy.sh\n 2.add-advert.sh\n 3.add-suggest.sh\n 4.advert-functions.sh\n 5.suggest-functions.sh\nsrc\n as_types.d.ts\n simple\n __tests__\n as-pect.d.ts\n index.unit.spec.ts\n asconfig.json\n assembly\n index.ts\n models.ts\n tsconfig.json\n utils.ts\n"},"readme":{"kind":"string","value":"# Demo Name Suggestion Project \n-------\nThis project includes companies that need a name by posting advertisements and receiving name suggestions. The company that opens the advertisement will pay the amount specified when opening the advertisement for the name it chooses from among those who propose a name. He will not be able to use the name without selecting it because all name suggestions are saved.\n\n## Quick Start\n------\n1. Prerequisites: Make sure you've installed [Node-js] ≥ 12\n ```\nnpm\n```\n- Current version of ```Node-js```\n ```\nyarn\n```\n to install: \n ```\n npm install --global yarn\n ```\n- Install near-cli on terminal :\n```\nnpm install --global near-cli\n```\n- check version and installation done\n```\nnear --version\n```\n\n2. Clone this repo:\n```\ngit clone https://github-com/mehmetali765/DemoNameSuggestionProject-git\n```\nafter\n ```\nyarn\n``` run on cmd\n\n## Building and Deploying the contract\n------\nThe contract is located in under the assembly folder, after editing the contract you can run\n```\nyarn build:release\n```\nin order to build the contract and get the .wasm file , if you want to build and deploy the contract at the same time, you can run\n ```\n yarn dev\n ```\n This will create a test account and deploy the contract into it-\n\nafter the contract is deployed, it is necessary to run the following command in the terminal in order to be able to run the contract\n```\nexport CONTRACT=ACCOUNT_ID\n```\nwhere the ACCOUNT_ID will be returned after the contract deployment\n\n## Functions\n------\n### addAdvert\n- Take name(string), advertDescription(string), gift(Money)\n- Returns string \n- Example call\n```\nnear call $CONTRACT addAdvert '{\"name\":\"Market\",\"advertDescription\":\"We are looking for a name for our family market\",\"gift\":\"100000000000000\"}' --accountId <your account id>\n```\n### getAllAdvert\n- Returns all advertisement\n- Example call \n```\nnear view $CONTRACT getAllAdvert\n```\n### getAdvert\n- Take id(u32)\n- Returns advertisement with id\n- Example call \n```\nnear view $CONTRACT getAdvert '{\"id\":1379457469}'\n```\n### deleteAdvert\n- Take id(u32)\n- Returns string \n- Example call \n```\nnear call $CONTRACT deleteAdvert '{\"id\":1379457469}' --accountId <your account id>\n```\n### chooseName \n- Take suggestId(u32) , advertId(u32)\n- Returns advertisement with id\n- Example call \n```\nnear call $CONTRACT chooseName '{\"suggestId\":3919146280,\"advertId\":1379457469}' ----accountId <your account id>\n```\n### getIsCompletedAdvert\n- Returns bool\n- Example call\n```\nnear view $CONTRACT getIsCompletedAdvert '{\"advertId\":\"1379457469\"}'\n```\n### addSuggest\n-Take yourSuggest(string) , advertId(u32)\n- Returns string\n- Example call\n```\nnear call $CONTRACT addSuggest '{\"yourSuggest\":\"Plus Market\",\"advertId\":1379457469}' --accountId <your account id>\n```\n### getAllSuggest\n- Returns all suggets\n- Example call\n```\nnear view $CONTRACT getAllSuggest\n```\n\n### getSuggestsByAdvertId\n- Take id(u32)\n- Returns suggets with id\n- Example call \n```\nnear view $CONTRACT getSuggestsByAdvertId '{\"id\":1379457469}'\n```\n"}}},{"rowIdx":891,"cells":{"repoName":{"kind":"string","value":"malytinKonstantin_near-react-app"},"tree":{"kind":"string","value":".idea\n dbnavigator.xml\n modules.xml\n vcs.xml\nREADME.md\npackage-lock.json\npackage.json\npublic\n index.html\n manifest.json\n robots.txt\nsrc\n components\n Container\n index.ts\n styles.css\n Header\n index.ts\n RGBContract\n index.ts\n index.ts\n hooks\n index.ts\n useStores.ts\n pages\n Main\n index.ts\n index.ts\n stores\n index.ts\n services\n index.ts\n rgb-contract.ts\n wallet-store.ts\ntsconfig.json\n"},"readme":{"kind":"string","value":"# Getting Started with Create React App\n\nThis project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).\n\n## Available Scripts\n\nIn the project directory, you can run:\n\n### `npm start`\n\nRuns the app in the development mode.\\\nOpen [http://localhost:3000](http://localhost:3000) to view it in the browser.\n\nThe page will reload if you make edits.\\\nYou will also see any lint errors in the console.\n\n### `npm test`\n\nLaunches the test runner in the interactive watch mode.\\\nSee the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.\n\n### `npm run build`\n\nBuilds the app for production to the `build` folder.\\\nIt correctly bundles React in production mode and optimizes the build for the best performance.\n\nThe build is minified and the filenames include the hashes.\\\nYour app is ready to be deployed!\n\nSee the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.\n\n### `npm run eject`\n\n**Note: this is a one-way operation. Once you `eject`, you can’t go back!**\n\nIf you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.\n\nInstead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.\n\nYou don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.\n\n## Learn More\n\nYou can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).\n\nTo learn React, check out the [React documentation](https://reactjs.org/).\n"}}},{"rowIdx":892,"cells":{"repoName":{"kind":"string","value":"keypom_aha-boilerplate"},"tree":{"kind":"string","value":"README.md\n__tests__\n create-tix.js\n nearcon-keys.json\n nearcon\n nearcon.ava.ts\n utils.ts\n tests.ava.ts\n utils\n keypom.ts\n types.ts\n workspaces.ts\ncontract\n Cargo.toml\n build.sh\n src\n approval.rs\n enumeration.rs\n events.rs\n internal.rs\n lib.rs\n metadata.rs\n nft_core.rs\n owner.rs\n raffle.rs\n royalty.rs\n target\n .rustc_info.json\n debug\n .fingerprint\n Inflector-a9d5d0565aa26a9b\n lib-inflector.json\n ahash-672bd2931ec6a4a8\n lib-ahash.json\n ahash-988591fdd6bdb6e2\n run-build-script-build-script-build.json\n 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wee_alloc-b2fe6707d88087e1\n build-script-build-script-build.json\n wee_alloc-e8ba7f89fb28bf35\n run-build-script-build-script-build.json\n winnow-bada6a86463a7ed4\n lib-winnow.json\n wyz-eb4998c640f6ac75\n lib-wyz.json\n zeroize-cd75413f03090d30\n lib-zeroize.json\n zeroize_derive-868aec49869db6bc\n lib-zeroize_derive.json\n zeropool-bn-7c2c2fd97dacfa5f\n lib-zeropool-bn.json\n build\n crunchy-ddaff50b37de4df2\n out\n lib.rs\n num-bigint-e456b3fc23ac8e2a\n out\n radix_bases.rs\n parity-secp256k1-4b1a395a29783579\n out\n flag_check.c\n reed-solomon-erasure-1d5748c3d5bb1e80\n out\n table.rs\n thiserror-b630d4dc70d62ee8\n out\n probe.rs\n typenum-ae266bb20c1c0bd6\n out\n consts.rs\n op.rs\n tests.rs\n wee_alloc-e8ba7f89fb28bf35\n out\n wee_alloc_static_array_backend_size_bytes.txt\n release\n .fingerprint\n Inflector-9f6c5eb6607cae38\n lib-inflector.json\n ahash-0b2ae90c84309e83\n build-script-build-script-build.json\n borsh-derive-c636fc05e86bd331\n lib-borsh-derive.json\n borsh-derive-internal-4e901194e2ba0bba\n lib-borsh-derive-internal.json\n borsh-schema-derive-internal-6e58ef152f518a7e\n lib-borsh-schema-derive-internal.json\n near-sdk-macros-36f7ac81dfe28d3c\n lib-near-sdk-macros.json\n proc-macro-crate-153af1958b43cd46\n lib-proc-macro-crate.json\n proc-macro2-2f00336b091e545d\n lib-proc-macro2.json\n proc-macro2-661a751eabc24d73\n build-script-build-script-build.json\n proc-macro2-e9d6a1c6b1795f53\n run-build-script-build-script-build.json\n quote-11fb4ae980dfa73d\n lib-quote.json\n schemars-b49dd5ab1051bd0d\n build-script-build-script-build.json\n schemars_derive-898655f545f5dba8\n lib-schemars_derive.json\n semver-36e396563abb5fd6\n build-script-build-script-build.json\n serde-8b6b92464e4c218c\n build-script-build-script-build.json\n serde-9a6d2656cd2db639\n lib-serde.json\n serde-f8108f1aae9e5343\n run-build-script-build-script-build.json\n serde_derive-1a29582276a110be\n lib-serde_derive.json\n serde_derive_internals-36c60e952570c91e\n lib-serde_derive_internals.json\n serde_json-a1e906be9ffe71d9\n build-script-build-script-build.json\n syn-6a7536e097ee295c\n lib-syn.json\n syn-7d3f7ed4bf18893b\n run-build-script-build-script-build.json\n syn-ab0a2b44f7694773\n build-script-build-script-build.json\n syn-f9066a0b9c7d520a\n lib-syn.json\n toml-b58a756847e11186\n lib-toml.json\n unicode-ident-a1c028795e9f032c\n lib-unicode-ident.json\n version_check-37bfa5ae93653f8b\n lib-version_check.json\n wee_alloc-bc9bb16427189535\n build-script-build-script-build.json\n wasm32-unknown-unknown\n release\n .fingerprint\n ahash-1c14633346178fe7\n lib-ahash.json\n ahash-591cc009c06e7cf5\n run-build-script-build-script-build.json\n base64-6bac46afbd1962fd\n lib-base64.json\n borsh-b25ae22c3296dc12\n lib-borsh.json\n bs58-0aef5dfa83ca8a80\n lib-bs58.json\n cfg-if-caba0a56c040732b\n lib-cfg-if.json\n dyn-clone-51e519c98ad7464c\n lib-dyn-clone.json\n hashbrown-49ddfa3f6d06f1fc\n lib-hashbrown.json\n itoa-c7a9e3fc3eac61d1\n lib-itoa.json\n memory_units-a5486a0e2d197f5a\n lib-memory_units.json\n near-abi-a490f316d7a04638\n lib-near-abi.json\n near-sdk-b5609a6bfa947fd4\n lib-near-sdk.json\n near-sys-ceeb9e0e6a6af79a\n lib-near-sys.json\n nearcon-factory-contract-829ba4831a3a9531\n lib-nearcon-factory-contract.json\n once_cell-3e0d8eb85f9c424a\n lib-once_cell.json\n ryu-321680dd110e2fa6\n lib-ryu.json\n schemars-de8dfce3726c8bc3\n lib-schemars.json\n schemars-faefaebea69e0fbf\n run-build-script-build-script-build.json\n semver-6dc3e67d65107941\n run-build-script-build-script-build.json\n semver-c4f891220617eb46\n lib-semver.json\n serde-a7fbaf84d33ee300\n lib-serde.json\n serde-d4a82b1095dfd93f\n run-build-script-build-script-build.json\n serde_json-ae90ee906564c6dc\n lib-serde_json.json\n serde_json-fd6f09702787e79b\n run-build-script-build-script-build.json\n wee_alloc-b96209701010a280\n lib-wee_alloc.json\n wee_alloc-c5dfd13fdbef16ac\n run-build-script-build-script-build.json\n build\n wee_alloc-c5dfd13fdbef16ac\n out\n wee_alloc_static_array_backend_size_bytes.txt\nfrontend\n .prettierrc.js\n config-overrides.js\n package.json\n postcss.config.js\n public\n index.html\n manifest.json\n robots.txt\n src\n App.js\n components\n Footer\n Footer.css\n index.ts\n LoadingModal\n index.ts\n MultipleChoice\n index.ts\n Navbar\n Navbar.css\n index.ts\n SquaresBG\n index.ts\n index.css\n logo.svg\n react-app-env.d.ts\n routes\n Error\n index.ts\n Home\n Home.css\n index.ts\n Prizes\n Gallery\n PrizeGallery.css\n PrizeHome.css\n index.ts\n Stats\n index.ts\n Success\n index.ts\n setupTests.ts\n tailwind.config.js\n tsconfig.json\npackage.json\n"},"readme":{"kind":"string","value":"# Getting Started with Create React App\n\nThis project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).\n\n## Available Scripts\n\nIn the project directory, you can run:\n\n### `npm start`\n\nRuns the app in the development mode.\\\nOpen [http://localhost:3000](http://localhost:3000) to view it in the browser.\n\nThe page will reload if you make edits.\\\nYou will also see any lint errors in the console.\n\n### `npm test`\n\nLaunches the test runner in the interactive watch mode.\\\nSee the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.\n\n### `npm run build`\n\nBuilds the app for production to the `build` folder.\\\nIt correctly bundles React in production mode and optimizes the build for the best performance.\n\nThe build is minified and the filenames include the hashes.\\\nYour app is ready to be deployed!\n\nSee the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.\n\n### `npm run eject`\n\n**Note: this is a one-way operation. Once you `eject`, you can’t go back!**\n\nIf you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.\n\nInstead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.\n\nYou don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.\n\n## Learn More\n\nYou can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).\n\nTo learn React, check out the [React documentation](https://reactjs.org/).\n"}}},{"rowIdx":893,"cells":{"repoName":{"kind":"string","value":"nel349_NEARCON-2022"},"tree":{"kind":"string","value":".eslintrc.js\n.expo-shared\n assets.json\nNEAR\n lensWebViewSupport\n .github\n workflows\n tests.yml\n .gitpod.yml\n README.md\n contract\n README.md\n babel.config.json\n build.sh\n deploy.sh\n package.json\n src\n contract.ts\n model.ts\n utils.ts\n tsconfig.json\n frontend\n assets\n global.css\n logo-black.svg\n logo-white.svg\n index.js\n near-interface.js\n near-wallet.js\n package.json\n start.sh\n integration-tests\n package.json\n src\n main.ava.ts\n package.json\nREADME.md\napp.config.ts\nbabel.config.js\ncomponents\n Nav.js\n NavAbsolute.js\n __tests__\n StyledText-test.js\n index.js\n temp.ts\nconstants\n Colors.js\n Colors.ts\n Layout.ts\n index.js\nglobal.ts\nhooks\n useCachedResources.ts\n useColorScheme.ts\nindex.js\nlens_protocol\n api-polygon\n authenticate.js\n create-profiles.ts\n index.js\n lens_hub_abi\n abi.json\n mutations.js\n profile\n apollo-client.ts\n profiles.js\n queries.js\n utils.js\n aurora\n authenticate.ts\n challenge.ts\n client.ts\n index.ts\n profiles.ts\nmetro.config.js\nmocks\n contact.json\nnavigation\n LinkingConfiguration.ts\npackage.json\nplugins\n network_security_config.xml\n trust-local-certs.js\nscreens\n ExploreProfiles\n RecommendedProfile.js\n styles.js\n Profile\n style.js\ntsconfig.json\nutils\n datetime.js\n image.js\n index.js\n"},"readme":{"kind":"string","value":"# Donation 💸 \n[](https://docs.near.org/tutorials/welcome)\n[](https://gitpod.io/#/https://github.com/near-examples/donation-js)\n[](https://docs.near.org/develop/contracts/anatomy)\n[](https://docs.near.org/develop/integrate/frontend)\n[](https://docs.near.org/develop/integrate/frontend)\n\nOur Donation example enables to forward money to an account while keeping track of it. It is one of the simplest examples on making a contract receive and send money.\n\n\n\n# What This Example Shows\n\n1. How to receive and transfer $NEAR on a contract.\n2. How to divide a project into multiple modules.\n3. How to handle the storage costs.\n4. How to handle transaction results.\n5. How to use a `Map`.\n\n<br />\n\n# Quickstart\n\nClone this repository locally or [**open it in gitpod**](https://gitpod.io/#/github.com/near-examples/donation-js). Then follow these steps:\n\n### 1. Install Dependencies\n```bash\nnpm install\n```\n\n### 2. Test the Contract\nDeploy your contract in a sandbox and simulate interactions from users.\n\n```bash\nnpm test\n```\n\n### 3. Deploy the Contract\nBuild the contract and deploy it in a testnet account\n```bash\nnpm run deploy\n```\n\n### 4. Start the Frontend\nStart the web application to interact with your smart contract \n```bash\nnpm start\n```\n\n---\n\n# Learn More\n1. Learn more about the contract through its [README](./contract/README.md).\n2. Check [**our documentation**](https://docs.near.org/develop/welcome).\n# How to install app\n\napp link: https://expo.dev/@nel349/test-dapp?serviceType=classic&distribution=expo-go\n\n1. Install expo go in your phone from the app store(iOS) or play store(android)\n2. For iphone users scan the QR in the above link the app using your camera app\n3. For android users, open Expo go, tap on Scan QR code, scan the QR in the above link.\n4. After scan, app should automatically install.\n# Donation Contract\n\nThe smart contract exposes methods to handle donating $NEAR to a `beneficiary`.\n\n```ts\n@call\ndonate() {\n // Get who is calling the method and how much $NEAR they attached\n let donor = near.predecessorAccountId(); \n let donationAmount: bigint = near.attachedDeposit() as bigint;\n\n let donatedSoFar = this.donations.get(donor) === null? BigInt(0) : BigInt(this.donations.get(donor) as string)\n let toTransfer = donationAmount;\n\n // This is the user's first donation, lets register it, which increases storage\n if(donatedSoFar == BigInt(0)) {\n assert(donationAmount > STORAGE_COST, `Attach at least ${STORAGE_COST} yoctoNEAR`);\n\n // Subtract the storage cost to the amount to transfer\n toTransfer -= STORAGE_COST\n }\n\n // Persist in storage the amount donated so far\n donatedSoFar += donationAmount\n this.donations.set(donor, donatedSoFar.toString())\n\n // Send the money to the beneficiary\n const promise = near.promiseBatchCreate(this.beneficiary)\n near.promiseBatchActionTransfer(promise, toTransfer)\n\n // Return the total amount donated so far\n return donatedSoFar.toString()\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Deploy the Contract\nYou can automatically compile and deploy the contract in the NEAR testnet by running:\n\n```bash\nnpm run deploy\n```\n\nOnce finished, check the `neardev/dev-account` file to find the address in which the contract was deployed:\n\n```bash\ncat ./neardev/dev-account\n# e.g. dev-1659899566943-21539992274727\n```\n\nThe contract will be automatically initialized with a default `beneficiary`.\n\nTo initialize the contract yourself do:\n\n```bash\n# Use near-cli to initialize contract (optional)\nnear call <dev-account> init '{\"beneficiary\":\"<account>\"}' --accountId <dev-account>\n```\n\n<br />\n\n## 2. Get Beneficiary\n`beneficiary` is a read-only method (`view` method) that returns the beneficiary of the donations.\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\nnear view <dev-account> beneficiary\n```\n\n<br />\n\n## 3. Get Number of Donations\n\n`donate` forwards any attached money to the `beneficiary` while keeping track of it.\n\n`donate` is a payable method for which can only be invoked using a NEAR account. The account needs to attach money and pay GAS for the transaction.\n\n```bash\n# Use near-cli to donate 1 NEAR\nnear call <dev-account> donate --amount 1 --accountId <account>\n```\n\n**Tip:** If you would like to `donate` using your own account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account>`.\n"}}},{"rowIdx":894,"cells":{"repoName":{"kind":"string","value":"near-examples_guest-book-examples"},"tree":{"kind":"string","value":".devcontainer\n devcontainer.json\n.github\n workflows\n tests-rs.yml\n tests-ts.yml\nREADME.md\ncontract-rs\n Cargo.toml\n README.md\n rust-toolchain.toml\n src\n lib.rs\n tests\n sandbox.rs\ncontract-ts\n README.md\n package.json\n sandbox-ts\n main.ava.ts\n src\n contract.ts\n model.ts\n tsconfig.json\nfrontend\n index.html\n package.json\n public\n vite.svg\n src\n assets\n react.svg\n index.css\n services\n near-wallet.js\n vite.config.js\n"},"readme":{"kind":"string","value":"# Guest Book Contract\n\nThe smart contract stores messages from users. Messages can be `premium` if the user attaches sufficient money (0.1 $NEAR).\n\n```ts\nthis.messages = [];\n\n@call\n// Public - Adds a new message.\nadd_message({ text }: { text: string }) {\n // If the user attaches more than 0.1N the message is premium\n const premium = near.attachedDeposit() >= BigInt(POINT_ONE);\n const sender = near.predecessorAccountId();\n\n const message = new PostedMessage({premium, sender, text});\n this.messages.push(message);\n}\n \n@view\n// Returns an array of messages.\nget_messages({ fromIndex = 0, limit = 10 }: { fromIndex: number, limit: number }): PostedMessage[] {\n return this.messages.slice(fromIndex, fromIndex + limit);\n}\n```\n\n<br />\n\n# Quickstart\n\n1. Make sure you have installed [node.js](https://nodejs.org/en/download/package-manager/) >= 16.\n2. Install the [`NEAR CLI`](https://github.com/near/near-cli#setup)\n\n<br />\n\n## 1. Build and Test the Contract\nYou can automatically compile and test the contract by running:\n\n```bash\nnpm run test\n```\n\n<br />\n\n## 2. Create an Account and Deploy\nYou can create a testnet account and deploy the contract by running:\n\n```bash\nnear create-account <your-account.testnet> --useFaucet\nnear deploy <your-account.testnet> build/release/hello_near.wasm\n```\n\n## 3. Retrieve the Stored Messages\n`get_messages` is a read-only method (`view` method) that returns a slice of the vector `messages`.\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```bash\nnear view <your-account.testnet> get_messages '{\"from_index\":0, \"limit\":10}'\n```\n\n<br />\n\n## 4. Add a Message\n`add_message` adds a message to the vector of `messages` and marks it as premium if the user attached more than `0.1 NEAR`.\n\n`add_message` is a payable method for which can only be invoked using a NEAR account. The account needs to attach money and pay GAS for the transaction.\n\n```bash\n# Use near-cli to donate 1 NEAR\nnear call <your-account.testnet> add_message '{\"text\": \"a message\"}' --amount 0.1 --accountId <your-account.testnet>\n```\n\n**Tip:** If you would like to add a message another account, first login into NEAR using:\n\n```bash\n# Use near-cli to login your NEAR account\nnear login\n```\n\nand then use the logged account to sign the transaction: `--accountId <your-account.testnet>`.\n# Guest Book Contract\n\nThis smart contract stores messages from users. If the user attaches more than 0.1 NEAR tokens the message is marked as premium.\n\n## How to Build Locally?\n\nInstall [`cargo-near`](https://github.com/near/cargo-near) and run:\n\n```bash\ncargo near build\n```\n\n## How to Test Locally?\n\n```bash\ncargo test\n```\n\n## How to Deploy?\n\nTo deploy manually, install [`cargo-near`](https://github.com/near/cargo-near) and run:\n\n```bash\n# Create a new account\ncargo near create-dev-account\n\n# Deploy the contract on it\ncargo near deploy <account-id>\n```\n\n## How to Interact?\n\n_In this example we will be using [NEAR CLI](https://github.com/near/near-cli)\nto intract with the NEAR blockchain and the smart contract_\n\n_If you want full control over of your interactions we recommend using the\n[near-cli-rs](https://near.cli.rs)._\n\n## 1. Add a Message\n`add_message` adds a message to the vector of `messages` and marks it as premium if the user attached more than `0.1 NEAR`.\n\n```rust\n// Public - Adds a new message.\n#[payable]\npub fn add_message(&mut self, text: String) {\n // If the user attaches more than 0.01N the message is premium\n let premium = env::attached_deposit() >= POINT_ONE;\n let sender = env::predecessor_account_id();\n\n let message = PostedMessage{premium, sender, text};\n self.messages.push(&message);\n}\n```\n\n```bash\nnear call <dev-account> add_message '{\"text\": \"a message\"}' --amount 0.1 --accountId <account>\n```\n\n### 2. Retrieve the Stored Messages\n`get_messages` is a read-only method (`view` method) that returns a slice of the vector `messages`.\nPlease note that `from_index` and `limit` are optional parameters.\n\n`View` methods can be called for **free** by anyone, even people **without a NEAR account**!\n\n```rust\n // Public Method - Returns a slice of the messages.\n pub fn get_messages(&self, from_index: Option<U64>, limit: Option<U64>) -> Vec<&PostedMessage> {\n let from = u64::from(from_index.unwrap_or(U64(0)));\n let limit = u64::from(limit.unwrap_or(U64(10)));\n\n self.messages\n .iter()\n .skip(from as usize)\n .take(limit as usize)\n .collect()\n }\n```\n\n```bash\nnear view <dev-account> get_messages '{\"from_index\":0, \"limit\":10}'\n```\n\n## Useful Links\n\n- [cargo-near](https://github.com/near/cargo-near) - NEAR smart contract development toolkit for Rust\n- [near CLI-rs](https://near.cli.rs) - Iteract with NEAR blockchain from command line\n- [NEAR Rust SDK Documentation](https://docs.near.org/sdk/rust/introduction)\n- [NEAR Documentation](https://docs.near.org)\n- [NEAR StackOverflow](https://stackoverflow.com/questions/tagged/nearprotocol)\n- [NEAR Discord](https://near.chat)\n- [NEAR Telegram Developers Community Group](https://t.me/neardev)\n- NEAR DevHub: [Telegram](https://t.me/neardevhub), [Twitter](https://twitter.com/neardevhub)\n# Guest Book Examples 📖\n\n[](https://docs.near.org/tutorials/welcome)\n[](contract-ts)\n[](contract-rs)\n[](frontend)\n\n\n\nThis repository contains example implementations of a Guest Book smart contract in both JavaScript and Rust, and an examples of a frontend interacting with a Guest Book smart contract. \n\n## Repositories\n\n- [Guest Book TS Example](contract-ts)\n- [Guest Book RS Example](contract-rs)\n- [Guest Book Frontend Example](Frontend)\n"}}},{"rowIdx":895,"cells":{"repoName":{"kind":"string","value":"mhassanist_jobchain"},"tree":{"kind":"string","value":"README.md\njob-chain\n as-pect.config.js\n asconfig.json\n assembly\n __tests__\n index.unit.spec.ts\n index.ts\n models.ts\n tsconfig.json\n utils.ts\n index.js\n package-lock.json\n package.json\n scripts\n 0-check-account.sh\n 1-build-deploy.sh\n 2-create-job.sh\n 4-list-available-jobs.sh\n 4-list-jobs.sh\n 5-submit-job.sh\n tests\n index.js\nvalidation-contract\n asconfig.json\n assembly\n index.ts\n tsconfig.json\n utils.ts\n index.js\n package-lock.json\n package.json\n scripts\n 0-check-account.sh\n 1-build-deploy.sh\n 2-test-call-validate.sh\n tests\n index.js\n"},"readme":{"kind":"string","value":"# job-chain\n\n## Note!\nThis project is meant for educational purposes only. It was developed as a part of the [NEAR](https://near.org/) certififed developer program. It is not production-ready and it misses a lot of test, validations and business logic. The project is built using [NEAR](https://near.org/) 's AssemblyScript SDK and the deployment scripts uses [NEAR-CLI](https://docs.near.org/docs/tools/near-cli) \n\n## About\nThe project simulates a freelance jobs portal in the era of blockchain when jobs can be auto-validated using smart contracts and the payment is proccessed automatically. \n\nThe employer creates a job. Part of the job's required parameters is to submit the validation contract, and method, used to validate the submited work of that job.\nIt is up for the employer to request the type of work to be done; but it has to be sent as text to the submitJob function.\n\n## The Employer\n- Creates a validation contract and a validation method \n- Creates a job with job requirements and validation contract info using `createJob` function\n\n## Freelancer\n- Check the available jobs `getAvailableJobs`\n- Submit the job using `submitJob`\n- Check the job submission status `getAllJobs` or `checkJob`\n\n* Freelance will get the the money automatically if the job got auto validated by the validation contract. \n\n# Runing the sample validation contract\n*You have to login in the cli and set the enviornment variables \"$CONTRACT\" and \"$OWNER\" before running the scripts\n\n`export OWNER=msaudi2.testnet`\n\n`export CONTRACT=validate.msaudi2.testnet`\n\n### Scripts \n`./scripts/0-check-account.sh`\nThis script will delete the old account if exitsis, and create a new one with the specified CONTRACT environment variable. \n\n \n`./scripts/1-build-deploy.sh`\nThis script will build, and deploy the contract.\n\n \n`./scripts/2-test-call-validate.sh`\nThis script will test the deployed validation contract by calling the method valid with invalid and valid work entry.\n\n# Runing the job portal contract\n\n*You have to login in the cli and set the enviornment variables \"$CONTRACT\" and \"$OWNER\" before running the scripts\n\n`export OWNER=msaudi.testnet`\n\n`export CONTRACT=jobchain.msaudi.testnet`\n\n### Scripts \n\n`./scripts/0-check-account.sh`\nThis script will delete the old account if exitsis, and create a new one with the speciifed CONTRACT environment variable. \n\n \n`./scripts/1-build-deploy.sh`\nThis script will build, and deploy the contract.\n\n \n `./scripts/3-create-job.sh`\nThis script will create a sample job.\n\n \n `./scripts/4-list-jobs.sh` or `./scripts/4-list-available-jobs.sh`\nTo list all the current/available jobs\n\n `./scripts/5-submit-job.sh` \nTo submit and validate a job as a freelance\n\n \n `./scripts/4-list-jobs.sh` or `./scripts/4-list-available-jobs.sh`\nTo list all the current/available jobs\n\n## Future enhancements\n- Separate the submissions of the jobs from the jobs themselves\n- Better handling of Gas and money transfer\n- Adding tests\n"}}},{"rowIdx":896,"cells":{"repoName":{"kind":"string","value":"george-shammar_Insignia"},"tree":{"kind":"string","value":"README.md\nartifacts\n @openzeppelin\n contracts\n access\n Ownable.sol\n Ownable.dbg.json\n Ownable.json\n security\n Pausable.sol\n Pausable.dbg.json\n Pausable.json\n token\n ERC721\n ERC721.sol\n ERC721.dbg.json\n ERC721.json\n IERC721.sol\n IERC721.dbg.json\n IERC721.json\n IERC721Receiver.sol\n IERC721Receiver.dbg.json\n IERC721Receiver.json\n extensions\n ERC721URIStorage.sol\n ERC721URIStorage.dbg.json\n ERC721URIStorage.json\n IERC721Metadata.sol\n IERC721Metadata.dbg.json\n IERC721Metadata.json\n utils\n Address.sol\n Address.dbg.json\n Address.json\n Context.sol\n Context.dbg.json\n Context.json\n Strings.sol\n Strings.dbg.json\n Strings.json\n introspection\n ERC165.sol\n ERC165.dbg.json\n ERC165.json\n IERC165.sol\n IERC165.dbg.json\n IERC165.json\n contracts\n Insignia.sol\n Insignia.dbg.json\n Insignia.json\ncache\n solidity-files-cache.json\nhardhat.config.js\npackage.json\npublic\n index.html\nscripts\n deploy.js\nsrc\n components\n App.js\n Community.js\n Copyright.js\n CreateAsset.js\n DownloadGame.js\n Event.js\n Footer.js\n GetToken.js\n Home.js\n Join.js\n Marketplace.js\n Nav.js\n News.js\n Next.js\n NoWallet.js\n Reveal.js\n Routes.js\n Scroll.js\n Trailer.js\n WalletSetup.js\n contracts\n Insignia.json\n contract-address.json\n index.js\n styles\n App.css\n Community.css\n Copyright.css\n Event.css\n Footer.css\n Home.css\n Join.css\n Marketplace.css\n Nav.css\n Next.css\n Play.css\n Reveal.css\n Scroll.css\n Trailer.css\n WalletSetup.css\n Whitepaper.css\n index.css\n utils\n wallet.js\n"},"readme":{"kind":"string","value":"\n# INSIGNIA\n\n## OVERVIEW\nInsignia is a 3D military strategy blockchain game application. A multi-player play-and-earn game, set in a medieval metaverse. With an immersive experience and one that provides an unequaled earning potential to gamers across the board.\n\nThis project hopes to solve specific problems that have been identified in the blockchain gaming ecosystem. Details about the problem statement and our proposed solutions could be found in the whitepaper linked below. \n\n### Discord\n[Join us on Discord](https://discord.gg/A4xfZENW2Z)\n\n### Twitter\n[Follow us on Twitter](https://twitter.com/Insignia_verse?s=03)\n\n### Currently availabe only on PC!\n<!-- [Live-Demo](https://practical-jennings-1b91e5.netlify.app/) -->\n\n[Game-Demo](https://screenrec.com/share/wVkHyPRexT)\n\nFor a comprehensive run down about the gameplay, game economics, tokenomics, road map, e.t.c please visit the link below to read the Whitepaper. \n\n[Whitepaper](https://getinsignia.gitbook.io/whitepaper/)\n\nInsignia is built on top of [NEAR Protocol](https://near.org/) and game assets are stored on IPFS.\n\n### Create Asset Page\n\n\n## Tech Stack\n\n### Blockchain\n- Near Protocol\n- IPFS (Decentralized storage)\n- Rust\n- near-api-js\n\n### Web Application\n- React\n- Javascript\n- HTML\n- CSS\n- Bootstrap\n\n### Game\n- Unreal Engine\n\n## Gettin Started\n\n### To start the application locally\n\nTo run a local copy of this application, follow the steps below:\n\n- Go to the \"Code\" section of this repository and press the green button that says \"Code\". Copy the URL or the SSH.\n- Go to the terminal and enter:\n```\ngit clone https://github.com/george-shammar/Insignia.git\n```\nThe URL or SSH are the links copied from the step above.\n\n- If you don't have git installed, you can download this project and unzip it.\n- Change directory into the folder the application is saved.\n```\ncd directory\n```\nDirectory is the name of your folder.\n\n- Once you have the local copy in your desired folder, go back to your terminal and run:\n```\nnpm install\n```\nThis command installs all the dependencies of the application.\n\nThis project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).\n\n- To start the application, run :\n```\nnpm start\n``` \nThis command runs the app in the development mode.\\\nOpen [http://localhost:3000](http://localhost:3000) to view it in your browser.\n\nThe page will reload when you make changes.\\\nYou may also see any lint errors in the console.\n\n## Usage\n\nUpon launching the application, go to \"Play Now\".\n\n### Step 1: NEAR Wallet Set-up\n- Insignia lives on the NEAR protocol. NEAR Wallet is your ticket to our metaverse. For first time NEAR users, click \"Get NEAR Wallet\", otherwise, proceed to the next tab.\n\n### Step 2: Get Insignia Token.\n- Insignia Token is the native currency of our metaverse. Details about the tokenomics can be found in the Whitepaper. We are currently using NEAR as the means of exchange. Click \"Fund Wallet\" and visit any of the exchanges in the list to fund your wallet. To do anything with the NEAR Wallet, you will need at least 0.1 NEAR. However, on the testnet, NEAR wallet is pre-funded when you created an account.\n\n### Step 3a: Create Game Asset\n- Each game asset is a unique NFT stored on IPFS. Each wallet can only have one Insignia NFT. Click \"Connect Wallet\" to link your NEAR Wallet. \n- Click \"Create Asset\" to mint a unique NFT.\n\n### Step 3b: Marketplace\n- An alternative is to purchase a Game Asset in the Marketplace.\n\n### Step 4: Download and Play\nCurrently, a very limited edition of the Free-To-Play model of the game is available on PC. Android and IOS release is coming soon.\n\n# Game Overview \n(Find details in the whitepaper)\n\n## The basics\n\n### World Of Chaos\n\n#### Cities\nWorld of Chaos is made up of three hundred (300) real-world ancient cities. Each city is a unique NFT. A typical city is made up of a Commander, an Army with a varied number of battalion (A battalion consists of 700 soldiers). When you mint a city, you get the following:\n\n- A medieval city and a 3 minutes video tour of your city with a short military show of force. It's architecture, people, and commerce.\n- An army with an unknown number of battalions before minting. The strength of your defense depends on the number of battalions in your army.\n- A commander.\n- A treasury.\n- A unique Insignia.\n\nThe bad news is that there are too much incentives for other cities and Mercenaries to attack your city - Your treasury!!! When you're defeated at war by another army, you loose the balance (Insignia Token) in your treasury. When you successfully defend or repel an attack, you earn the balance in the attacking armies' treasury.\n\nYou win or loose when your city's symbol of insignia is captured by the other army or otherwise. The World of Chaos is ultimately an open, virtual, and explorable meta-verse.\n\n#### Mercenaries\nThese are armies for hire - 45 in total. Each mercenary unit is a unique NFT with an unknown number of battalions before minting. Cities with insufficient armies can hire mercenaries to repel an attack or launch an attack. When you mint a mercenary unit you get the following.\n\n- An army with an unknown number of battalions.\n- A commander.\n- An insignia.\n\nAs an owner of a mercenary unit, you can attack a city to earn the balance of the city's treasury or rent out your army to another city for a fee paid upfront and not dependent on the outcome of the renter's war.\n\n### Fighting Pits\nThe fighting pit involves one-on-one combat in an arena of cheering crowds and real-world viewers. A fighting season takes a maximum of 7 days or less (depending on the number of participants). Each arena holds between 2, 4, and 8 fighters in each pool. One fighter emerges as the winner from each pool and faces the winner from another pool in the tournament until we have one final winner.\n\nPeering is done randomly and the reward mechanism also utilizes a no-loss mechanism. To fight in the tournament, the following steps need to be taken:\n\n- Mint a fighter (unique NFT) to play. If you missed out during the initial minting, you may trade in the Marketplace. Insignia also provides the opportunity to rent a fighter from NFT owners who choose not to participate in a fighting season.\n- Deposit Insignia Tokens to enter the tournament. These tokens are withdrawable no matter the outcome of the tournament, win or lose. Hence, the no-loss mechanism.\n\n## Game Controls\n- Forward : Keyboard \"W\"\n- Backward: Keyboard Key \"Z\"\n- Right: Keyboard Key \"D\"\n- Left: Keyboard Key \"A\"\n- Squat : Keyboard Key \"C\"\n- Sommersault: Multiple Space Bar press\n- Strike: Left Mouse click.\n- Jump: Keyboard Key \"Space Bar\"\n\n## Developer\n\n👤 **George Gbenle**\n\n- GitHub: [george-shammar](https://github.com/george-shammar)\n- Twitter: [@GeorgeShammar](https://twitter.com/GeorgeShammar)\n- LinkedIn: [George Gbenle](https://www.linkedin.com/in/georgegbenle/)\n\n## 🤝 Contributing\n\nContributions, issues and feature requests are welcome!\n\n## Show your support\n\nGive a ⭐️ if you like this project!\n"}}},{"rowIdx":897,"cells":{"repoName":{"kind":"string","value":"kharioki_crossword-frontend"},"tree":{"kind":"string","value":"README.md\ncontract\n Cargo.toml\n README.md\n build.bat\n build.sh\n src\n lib.rs\n test.sh\npackage.json\npublic\n index.html\n manifest.json\n robots.txt\nsrc\n App.css\n App.js\n config.js\n hardcoded-data.js\n index.css\n index.js\n utils.js\nwebpack.config.js\n"},"readme":{"kind":"string","value":"# Rust Smart Contract Template\n\n## Getting started\n\nTo get started with this template:\n\n1. Click the \"Use this template\" button to create a new repo based on this template\n2. Update line 2 of `Cargo.toml` with your project name\n3. Update line 4 of `Cargo.toml` with your project author names\n4. Set up the [prerequisites](https://github.com/near/near-sdk-rs#pre-requisites)\n5. Begin writing your smart contract in `src/lib.rs`\n6. Test the contract \n\n `cargo test -- --nocapture`\n\n8. Build the contract\n\n `RUSTFLAGS='-C link-arg=-s' cargo build --target wasm32-unknown-unknown --release`\n\n**Get more info at:**\n\n* [Rust Smart Contract Quick Start](https://docs.near.org/docs/develop/contracts/rust/intro)\n* [Rust SDK Book](https://www.near-sdk.io/)\n# crossword-frontend\n\nA react app frontend for a crossword game. This game makes calls to a Near smart contract deployed on the testnet.\n"}}},{"rowIdx":898,"cells":{"repoName":{"kind":"string","value":"Ideevoog_Toolblox.Ada.App"},"tree":{"kind":"string","value":".github\n workflows\n adawillhandlefunctions.yml\nLICENSE.md\nLib\n NBitcoin.deps.json\n NBitcoin.xml\n Toolblox.Ada.App.Model.deps.json\n Toolblox.Cryptography.deps.json\n Toolblox.Model.deps.json\nREADME.md\nToolblox.Ada.App.Blockchain.Functions\n .vscode\n extensions.json\n launch.json\n settings.json\n tasks.json\n NftMetadataFunction\n function.json\n index.ts\n ProcessInvoiceFunction\n function.json\n index.ts\n readme.md\n UpdateSubscriptionFunction\n function.json\n index.ts\n host.json\n package-lock.json\n package.json\n tsconfig.json\nToolblox.Ada.App.Functions\n AccountantFunctions.cs\n Helpers\n Sanitize.cs\n TableEntityExtensions.cs\n Properties\n ServiceDependencies\n adawillhandlefunctions\n appInsights1.arm.json\n storage1.arm.json\n serviceDependencies.adawillhandlefunctions.json\n serviceDependencies.json\n serviceDependencies.local.json\n Security.cs\n Services\n SystemTextJsonResult.cs\n Startup.cs\n StoreEventFunction.cs\n host.json\nToolblox.Ada.App.sln\n"},"readme":{"kind":"string","value":"# Toolblox.Ada.App\n"}}},{"rowIdx":899,"cells":{"repoName":{"kind":"string","value":"near_near-api-js"},"tree":{"kind":"string","value":"commitlint.config.js\npackages\n accounts\n jest.config.js\n test\n account.access_key.test.js\n account.test.js\n account_multisig.test.js\n config.js\n contract.test.js\n contract_abi.test.js\n lve_runtime.test.js\n lve_storage.test.js\n promise.test.js\n providers.test.js\n test-utils.js\n biometric-ed25519\n test\n utils.test.js\n cookbook\n accounts\n access-keys\n create-full-access-key.js\n create-function-access-key.js\n delete-access-key.js\n create-mainnet-account.js\n create-testnet-account.js\n api-keys\n backup-provider.js\n near-connection.js\n provider-example.js\n transactions\n batch-transactions.js\n get-tx-detail.js\n get-tx-status.js\n meta-transaction-relayer.js\n meta-transaction.js\n utils\n calculate-gas.js\n check-account-existence.js\n deploy-contract.js\n get-state.js\n unwrap-near.js\n verify-signature.js\n wrap-near.js\n crypto\n jest.config.js\n test\n key_pair.test.js\n keystores-browser\n jest.config.js\n test\n browser_keystore.test.js\n keystore_common.js\n keystores-node\n jest.config.js\n test\n keystore_common.js\n unencrypted_file_system_keystore.test.js\n keystores\n jest.config.js\n test\n in_memory_keystore.test.js\n keystore_common.js\n merge_keystore.test.js\n near-api-js\n browser-exports.js\n jest.config.js\n test\n config.js\n test-utils.js\n providers\n jest.config.js\n test\n fetch_json.test.js\n providers.test.js\n signers\n jest.config.js\n test\n signer.test.js\n transactions\n jest.config.js\n test\n serialize.test.js\n transaction.test.js\n utils\n fetch_error_schema.js\n jest.config.js\n test\n format.test.js\n logger.test.js\n rpc-errors.test.js\n validator.test.js\n wallet-account\n jest.config.js\n test\n wallet_account.test.js\n"},"readme":{"kind":"string","value":""}}}],"truncated":false,"partial":false},"paginationData":{"pageIndex":8,"numItemsPerPage":100,"numTotalItems":2863,"offset":800,"length":100}},"jwt":"eyJhbGciOiJFZERTQSIsImtpZCI6IjVHZDBvd0g5MTM2eDZjc1FvbE1zcktNWUZoRVFoUm5PVVVybEpjOUhaUEEifQ.eyJyZWFkIjp0cnVlLCJwZXJtaXNzaW9ucyI6eyJyZXBvLmNvbnRlbnQucmVhZCI6dHJ1ZX0sInJlcG9JZHMiOlsiNjY0ZjcyN2FhYzExZDI3MTU4YjczNzZmIl0sImlhdCI6MTc5MzM2MTA1OSwianRpIjoiY2NjZDcyMjAtMDc4NS00MGZhLThlYzktMWE4YWQyZTliODgyIiwic3ViIjoiL2RhdGFzZXRzL2pjYXJib25uZWxsL3N0cnVjdFR1bmluZ05FQVIiLCJleHAiOjE3OTMzNjQ2NTksImlzcyI6Imh0dHBzOi8vaHVnZ2luZ2ZhY2UuY28ifQ.eizI1PJY5RiZwIxaCfRzb5aV37JVau-B8Yu7s55QWKr8uz9s3SKUeXvE67dpcRfmq2VgyiVhwZJaFwulIaCcBw","displayUrls":true,"splitSizeSummaries":[{"config":"default","split":"train","numRows":2863,"numBytesParquet":54906025},{"config":"default","split":"val","numRows":319,"numBytesParquet":7435508}]},"discussionsStats":{"closed":0,"open":1,"total":1},"fullWidth":true,"hasGatedAccess":true,"hasFullAccess":true,"isEmbedded":false,"savedQueries":{"community":[],"user":[]}}">
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love-and-coffee-archive_near-challenge-3-v2 | .eslintrc.yml
.gitpod.yml
.travis.yml
README-Gitpod.md
README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
guestbook.spec.ts
as_types.d.ts
main.ts
model.ts
tsconfig.json
babel.config.js
neardev
shared-test-staging
test.near.json
shared-test
... | Guest Book
==========
[](https://travis-ci.com/near-examples/guest-book)
[](https://gitpod.io/#https://github.com/near-examples/guest-book)
<!-- MAGIC COMMENT: DO NOT DELETE!... |
quan191_NearQuiz | README.md
nearQuiz
.cache
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99d8f2ca596a60a3f1643eb4ab567f.json
01
4dd27210d19295a3d687a1b48817e4.json
6fbda58eb9a47f8690667478410746.json
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3cb5ca7d5d922aa7517f6ffb0c2526.json
... | # NearQuiz
nearQuiz Smart Contract
==================
A [smart contract] written in [AssemblyScript] for an app initialized with [create-near-app]
Quick Start
===========
Before you compile this code, you will need to install [Node.js] ≥ 12
Exploring The Code
==================
1. The main smart contract code live... |
Peersyst_swisstype | .github
pull_request_template.md
|
README.md
lerna.json
package-lock.json
package.json
packages
essential
CHANGELOG.md
README.md
index.d.ts
package.json
tsconfig.json
react
CHANGELOG.md
README.md
index.d.ts
package.json
tsconfig... | # SwissType
Your faithful Swiss Knife of types. Pick your favorite Swiss Type and enjoy your Typescript programming. But be careful, it's sharp!
# @swisstype/essential
Your faithful Swiss Knife of essential types.
# @swisstype/string
Your faithful Swiss Knife of string types.
# @swisstype/react
Your faithful Swiss ... |
Peersyst_NanoWallet | CHANGELOG.md
ISSUE_TEMPLATE.md
README.md
build.js
gulpfile.js
package-lock.json
package.json
preload.js
src
app
app.js
components
accountInput.component.js
attachMosaic.component.js
balance.component.js
index.js
invoice.component.js
... | # NEM Wallet #
### How to use the NEM Wallet ? ###
After downloading the latest version here https://forum.nem.io/t/nano-wallet-beta-1-1-11-5-000-xem-bug-bounty/2791, extract the NEM-Wallet folder from the archive, then you can simply click on start.html to open the app in your default browser. No installation or loc... |
Learn-NEAR-Hispano_NCD2--ConnectIoT | .cache
0a
ef6a5257c569e0a3869d2bd4358962.json
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46b0f669dbdf7973b1861cff27eabf.json
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15e2bbcbaacab4516e5f83df779c2b.json
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2f0d4ea5db93a16bb214cc4f2b92bc.json
... | # 🚧 connectiot
==================
> Proyecto realizado para el NCD Bootcamp NEAR Hispano.
# ConnectIoT es un servicio que nos permite tener acceso, por medio de la blockchain ,a diferentes dispositivos IoT y monitorearlos de acuerdo a los datos que se de van tomando con el tiempo
# ConnectIoT permite realizar las sig... |
Kiews-OU_NEAR-Carrd-Donate | .eslintrc.yml
.github
dependabot.yml
workflows
deploy.yml
tests.yml
.gitpod.yml
.travis.yml
README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
guestbook.spec.ts
as_types.d.ts
main.ts
model.ts
tsconfig.json
babel.config.js
carrd
carrd... | Introduction
==========
If you have a project to fundraise, the Near Protocol is a very suitable platform for this task.
Near Protocol's ability to embed custom functions in the blockchain, Near Protocol, can not only easy transfer money between wallets but also, for example, make a rating of the best investors or ph... |
mohammed-arham_BlockchainVotingSystem | blockvote
.gitpod.yml
README.md
babel.config.js
contract
README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
main.spec.ts
as_types.d.ts
index.ts
tsconfig.json
com... | # once
Only call a function once.
## usage
```javascript
var once = require('once')
function load (file, cb) {
cb = once(cb)
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Or add to the Function.prototype in a responsible way:
```javascript
// only has to be done once
require('... |
kenobijon_registry-near | README.md
contract
Cargo.toml
README.md
build.sh
deploy.sh
src
lib.rs
target
.rustc_info.json
debug
.fingerprint
Inflector-e80133f0d873a89e
lib-inflector.json
ahash-0ea456d44955ceb2
build-... | # Hello NEAR Contract
The smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.
```rust
const DEFAULT_GREETING: &str = "Hello";
#[near_bindgen]
#[derive(BorshDeserialize, BorshSerialize)]
pub struct Contract {
greeting: String,
}
impl Default for Contract {
fn d... |
levalleux-ludo_near.decentradocs | .eslintrc.js
.gitpod.yml
.travis.yml
README.md
as-pect.config.js
asconfig.js
assembly
__tests__
as-pect.d.ts
dvsRegistry.spec.ts
as_types.d.ts
main.ts
model.ts
tsconfig.json
babel.config.js
gulpfile.js
neardev
default
dev-1582817300252.json
shared-test-staging
... | Guest Book
==========
[](https://travis-ci.com/near-examples/guest-book)
[](https://gitpod.io/#https://github.com/near-examples/guest-book)
<!-- MAGIC COMMENT: DO NOT DELETE!... |
near_social-docs | .github
workflows
build.yml
links.yml
spellcheck.yml
README.md
babel.config.js
docs
discovery
api
cache.md
clipboard.md
fetch.md
home.md
near.md
primitives.md
social.md
state.md
... | # Website
This website is built using [Docusaurus 2](https://docusaurus.io/), a modern static website generator.
### Installation
```
$ yarn
```
### Local Development
```
$ yarn start
```
This command starts a local development server and opens up a browser window. Most changes are reflected live without having t... |
jesus13th_NearGames | README.md
as-pect.config.js
asconfig.json
assembly
Models.ts
__tests__
as-pect.d.ts
main.spec.ts
as_types.d.ts
index.ts
tsconfig.json
compile.js
neardev
dev-account.env
node_modules
.bin
acorn.cmd
acorn.ps1
asb.cmd
asb.ps1
asbuild.cmd
... | # AssemblyScript Loader
A convenient loader for [AssemblyScript](https://assemblyscript.org) modules. Demangles module exports to a friendly object structure compatible with TypeScript definitions and provides useful utility to read/write data from/to memory.
[Documentation](https://assemblyscript.org/loader.html)
A ... |
near-x_ncd-cn | README.md
cohorts
ncd-cn-1
README.md
slides
README.md
ncd-cn-10
README.md
slides
README.md
ncd-cn-11
README.md
slides
README.md
cross-contract-call
README.md
ncd-cn-12
README.md
... | # NEAR 认证开发者中文课程（第一期）
## 课程内容
章节 | 日期 | 幻灯片 | 视频
-- | -- | -- | --
NEAR 核心概念与应用架构 | 8月16日 | [下载](https://github.com/near-x/ncd-cn/raw/master/cohorts/ncd-cn-1/slides/NEAR%20%E8%AE%A4%E8%AF%81%E5%BC%80%E5%8F%91%E8%80%85%EF%BC%881%EF%BC%89%EF%BC%9ANEAR%20%E6%A0%B8%E5%BF%83%E6%A6%82%E5%BF%B5%E4%B8%8E%E5%BA%94%E7%94%A8%E6... |
Peaceseller_NEAR-Practice | README.md
as-pect.config.js
asconfig.json
package.json
| https://app.patika.dev/peaceseller
Build using npm
Deploy to Near
Check transaction using T... |
lewisgit_toy_amm | README.md
amm
Cargo.toml
build.sh
src
constants.rs
ft_core.rs
internal.rs
lib.rs
utils.rs
integration-tests
rs
Cargo.toml
src
tests.rs
ts
ava.config.js
package.json
src
main.ava.ts
| # Toy AMM
This project introduces a demonstration of a simple Automated Market Making (AMM) contract implemented in Rust on the NEAR blockchain platform. The demonstration, ToyAMM, is based on the XYK model, similar to [UniswapV2](https://github.com/Uniswap/v2-core). It is initialized with two Fungible Tokens and allow... |
kilnfi_near-validator-watcher | .github
release-drafter.yml
README.md
main.go
pkg
app
flags.go
http.go
run.go
utils.go
metrics
metrics.go
utils.go
utils_test.go
near
block.go
call_function.go
client.go
protocol_config.go
query.go
st... | # Near Validator Watcher
[](https://opensource.org/licenses/MIT)
**Near Validator Watcher** is a Prometheus exporter to help you monitor missed blocks & chunks of your validator.
![Near Validator Watcher Grafana Dashboard (Prometheus Exporter)](assets/near-val... |
Hydronio_NCD-clinhist | clinhist
.gitpod.yml
README.md
contract
Cargo.toml
README.md
build.sh
deploy.sh
src
lib.rs
target
.rustc_info.json
release
.fingerprint
Inflector-f13c978d1aadb31b
l... | # Hello NEAR Contract
The smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.
```rust
const DEFAULT_GREETING: &str = "Hello";
#[near_bindgen]
#[derive(BorshDeserialize, BorshSerialize)]
pub struct Contract {
greeting: String,
}
impl Default for Contract {
fn d... |
gpteth_influencerfi | README.md
backend
app.py
database.py
influencerfi_utils.py
models.py
routes.py
frontend
app.js
investment.js
nft_creation.js
token_creation.js
smartcontract
influencer_token.rs
influencerfi_lib.rs
investment_contract.rs
nft_contract.rs
staking_contract.rs
| # influencerfi
|
pasan1227_blockchain-voting-app | .gitpod.yml
README.md
contract
README.md
build.sh
build
builder.c
code.h
hello_near.js
methods.h
deploy.sh
neardev
dev-account.env
package-lock.json
package.json
src
contract.ts
tsconfig.json
frontend
App.js
assets
globa... | near-blank-project
==================
This app was initialized with [create-near-app]
Quick Start
===========
If you haven't installed dependencies during setup:
npm install
Build and deploy your contract to TestNet with a temporary dev account:
npm run build
Start project on localhost:
npm start
I... |
humanman_near-sample-thanks-tutorial | .forestry
front_matter
templates
documentation-page.yml
settings.yml
README.md
as-pect.config.js
asconfig.json
data
settings.json
gridsome.config.js
gridsome.server.js
jsconfig.json
netlify.toml
package.json
src
assets
img
logo-bright.svg
logo-dark.svg... | # 
This is my base application for creating rich tutorials focused on blockchain development.
Currently, I am working on a tutorial for writing Smart Contracts on the NEAR protocol. Once completed, I will ... |
izrake_PWPEvents | README-Gitpod.md
README.md
apiflask
requirements.txt
setup.py
utils.py
zkdonation.py
as-pect.config.js
asconfig.js
assembly
__tests__
as-pect.d.ts
guestbook.spec.ts
as_types.d.ts
main.ts
model.ts
tsconfig.json
babel.config.js
neardev
dev-account.env
shared-tes... | <p align="center">
<img src="https://github.com/izrake/PWPEvents/blob/master/screenshots/banner.png" alt="weve showcase">
</p>
# PWPEvents
Provide single platform for protest organizers to create events and allow others to join the event without publishing the location.
## Why PWPEvents?
It's always a challenge fo... |
kiskesis_Near-spring4 | .idea
modules.xml
vcs.xml
README.md
craco.config.js
package.json
public
index.html
manifest.json
robots.txt
senderContract
.idea
modules.xml
vcs.xml
Cargo.toml
README-Windows.md
README.md
build.bat
build.sh
flags.sh
fourth_challenge
Cargo.toml
... | # Folder that contains wasm files
# Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `yarn start`
Runs the app in the development mode.\
Open [http://localhost:3... |
irfancoder_near-frontend3 | .eslintrc.js
README.md
babel.config.js
jsconfig.json
package.json
postcss.config.js
public
index.html
src
layouts
index.js
main.js
pages
index.js
routes
index.js
store
index.js
modules
contract.js
user.js
utils
index.js
... | # near-frontend3
## Project setup
```
yarn install
```
### Compiles and hot-reloads for development
```
yarn serve
```
### Compiles and minifies for production
```
yarn build
```
### Lints and fixes files
```
yarn lint
```
### Customize configuration
See [Configuration Reference](https://cli.vuejs.org/config/).
|
mdb1710_neardemo | .gitpod.yml
README.md
babel.config.js
contract
README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
main.spec.ts
as_types.d.ts
index.ts
tsconfig.json
compile.js
node_modules
@as-covers
assembly
... | # type-check [](https://travis-ci.org/gkz/type-check)
<a name="type-check" />
`type-check` is a library which allows you to check the types of JavaScript values at runtime with a Haskell like type syntax. It is great for checking external input, f... |
GigameshGarages_MezzooNet | DixxNet
AnonymousVoting
.circleci
config.yml
README.md
circuits
jest.config.js
package-lock.json
package.json
scripts
build_snarks.sh
checksum_snarks.sh
download_snarks.sh
... | # Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `yarn start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to vie... |
ngocthach_near-dapp-example | .gitpod.yml
README.md
contract
Cargo.toml
README.md
neardev
dev-account.env
src
lib.rs
frontend
App.js
assets
global.css
logo-black.svg
logo-white.svg
index.html
index.js
near-api.js
near-config.js
package-lock.json
package.json
... | Hello NEAR!
=================================
A [smart contract] written in [Rust] for an app initialized with [create-near-app]
Quick Start
===========
Before you compile this code, you will need to install Rust with [correct target]
Exploring The Code
==================
1. The main smart contract code lives in `... |
gautamprikshit1_near-beginner | Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
jorgeavaldez_near-protocol-adapter | .eslintrc.js
.github
workflows
ci-workflow.yml
.prettierrc.js
.vim
coc-settings.json
.vscode
extensions.json
settings.json
.yarn
sdks
eslint
bin
eslint.js
lib
api.js
package.json
integrations.yml
pret... | # NEAR Protocol Write Adapter
This service is used by a Chainlink node as an external adapter for writing to [NEAR Blockchain](https://near.org/).
The external adapter allows you to configure an endpoint, account and private key to sign and send transactions.
## Prerequisite
- Yarn v1.22+: You will need to have [Ya... |
khorolets_nearoverflow-demo | README.md
package.json
public
index.html
manifest.json
robots.txt
src
App.css
App.js
App.test.js
components
Answer
index.js
AnswerForm
index.js
Box
index.js
Header
index.js
QuestionDetail
inde... | # nearoverflow-demo
Demo available https://khorolets.github.io/nearoverflow-demo/
Contract for this demo can be found in this repo https://github.com/khorolets/nearoverflow
|
omarr45_NEAR-quotes | README.md
__tests__
as-pect.d.ts
index.unit.spec.ts
as-pect.config.js
asconfig.json
assembly
as_types.d.ts
index.ts
model.ts
tsconfig.json
package.json
| ### Frontend repo for [The Quotes Notebooks](https://github.com/omarr45/NEAR-quotes) done with NEAR protocol
## The Quotes Notebook
A simple project that I made for dApps 2022 internship by NEAR foundati... |
esaminu_test-rs-boilerplate-543 | .eslintrc.yml
.github
ISSUE_TEMPLATE
01_BUG_REPORT.md
02_FEATURE_REQUEST.md
03_CODEBASE_IMPROVEMENT.md
04_SUPPORT_QUESTION.md
config.yml
PULL_REQUEST_TEMPLATE.md
labels.yml
workflows
codeql.yml
deploy-to-console.yml
labels.yml
lock.... | <h1 align="center">
<a href="https://github.com/near/boilerplate-template-rs">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/near/boilerplate-template-rs/main/docs/images/pagoda_logo_light.png">
<source media="(prefers-color-scheme: light)" srcset="ht... |
MustafaBayrakk_task3 | README.md
starter--near-sdk-as
README.md
as-pect.config.js
asconfig.json
neardev
dev-account.env
package.json
scripts
1.dev-deploy.sh
2.use-contract.sh
3.cleanup.sh
README.md
src
as_types.d.ts
simple
__tests__
... | # task3
# `near-sdk-as` Starter Kit
This is a good project to use as a starting point for your AssemblyScript project.
## Samples
This repository includes a complete project structure for AssemblyScript contracts targeting the NEAR platform.
The example here is very basic. It's a simple contract demonstrating the ... |
nearprotocol_near-bindgen-as | .github
workflows
nodejs.yml
README.md
assembly
index.ts
tsconfig.json
compiler.js
dist
ASTBuilder.js
JSONBuilder.js
ast.js
base.js
index.js
transformer.js
typeChecker.js
visitor.js
package.json
src
ASTBuilder.ts
JSONBuilder.ts
ast.d.ts
ast.js
base... | Deprecated see [near-sdk-as](https://github.com/near/near-sdk-as)
|
GuijonGustavo_notes-near | .cache
00
1d0ae57114d19876dcff48707ba40d.json
04
34d183c5038179b62cd99c65e68bc2.json
05
2343114de32f41ab4b6168910a8dcb.json
b0059d19cbad68a8d018f47caf47c9.json
06
b2a2778c2327f7637b51fd35135f16.json
0d
3999600d02bb008ab0b0fe5570dbc5.json
0e
... | [](https://www.npmjs.com/package/esprima)
[](https://www.npmjs.com/package/esprima)
[](https://travis-ci.org/jquery/esprima)
[![Covera... |
mesh-chat_chat-contract | .idea
modules.xml
vcs.xml
README.md
chat
.gitpod.yml
contract
Cargo.toml
build.sh
deploy.sh
src
lib.rs
package.json
| # chat-contract
|
josefophe_nearcontract | Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
noopponent18_-nearpractice-II | starter--near-sdk-as
README.md
as-pect.config.js
asconfig.json
package.json
scripts
1.dev-deploy.sh
2.use-contract.sh
3.cleanup.sh
README.md
src
as_types.d.ts
index.ts
simple
__tests__
as-pect.d.ts
... | # `near-sdk-as` Starter Kit
This is a good project to use as a starting point for your AssemblyScript project.
## Samples
This repository includes a complete project structure for AssemblyScript contracts targeting the NEAR platform.
The example here is very basic. It's a simple contract demonstrating the followin... |
near_queryapi | .github
ISSUE_TEMPLATE
bug_report.md
epic-template-.md
feature-request-.md
secondary-focus-area-.md
workflows
block-streamer-ci.yml
close-completed-issues.yml
coordinator-ci.yml
deploy-dev-widgets.yml
deploy-prod-widgets.yml
deploy-... | # IndexerFunction Registry
A registry of indexer functions that are run by QueryAPI
<br />
When an IndexerFunction is added to the registry the calling user's account is prepended to the name of the function.
Example: `developer.near` calls `register_indexer_function("index_all_the_things", "bunch of code here" })` ... |
mahmudsudo_resource_bank | Cargo.toml
README.md
build.sh
deploy.sh
neardev
dev-account.env
src
lib.rs
target
.rustc_info.json
debug
.fingerprint
Inflector-096ef7a664058f4c
lib-inflector.json
ahash-1ee028f97380bada
build-script-build-script-build.json
ahas... | # Hello NEAR Contract
The smart contract exposes two methods to enable storing and retrieving a greeting in the NEAR network.
```rust
const DEFAULT_GREETING: &str = "Hello";
#[near_bindgen]
#[derive(BorshDeserialize, BorshSerialize)]
pub struct Contract {
greeting: String,
}
impl Default for Contract {
fn d... |
hasankokes_near-contract-deployment-test | README.md
as-pect.config.js
asconfig.json
package.json
scripts
1.dev-deploy.sh
2.use-contract.sh
3.cleanup.sh
README.md
src
as_types.d.ts
simple
__tests__
as-pect.d.ts
index.unit.spec.ts
asconfig.json
assembly
index.ts
singleton
... | ## Setting up your terminal
The scripts in this folder are designed to help you demonstrate the behavior of the contract(s) in this project.
It uses the following setup:
```sh
# set your terminal up to have 2 windows, A and B like this:
┌─────────────────────────────────┬─────────────────────────────────┐
│ ... |
near_introverse | README.md
babel.config.js
build.sh
docs
asset-manifest.json
index.html
manifest.json
precache-manifest.dee0e4b52c8abe5b717a373a3f0d170e.js
robots.txt
service-worker.js
static
css
main.0db44818.chunk.css
js
2.bb4cc122.chunk.js
main.fc8e2684.... | # Welcome to the ~INTROVERSE~ sasha.services
## Template for NEAR dapps
### Features
* Create NEAR dapps with a React frontend 🐲
* We got Gulp! 💦
### Requirements
##### IMPORTANT: Make sure you have the latest version of NEAR Shell and Node Version > 10.x
1. node and npm
2. near shell
```
npm i -g near-shell
```
... |
Learn-NEAR-Club_Simple_DAO | simple_dao
.gitpod.yml
README.md
contract
Cargo.toml
README.md
compile.js
src
lib.rs
target
.rustc_info.json
debug
.fingerprint
Inflector-ff0f2cb78506b672
lib-inflector.jso... | simple_dao
==================
This app was initialized with [create-near-app]
Quick Start
===========
To run this project locally:
1. Prerequisites: Make sure you've installed [Node.js] ≥ 12
2. Install dependencies: `yarn install`
3. Run the local development server: `yarn dev` (see `package.json` for a
full lis... |
NEAR-Analytics_SOCIAL_DB_CODE_TOOLKIT | dev_commit.py
get_dev_list.py
helpers.py
query_engine
__init__.py
client.py
readme.md
| |
mikolajroszak_awesome-makerdao | AMD-MAINTENANCE-GUIDE.md
Japanese.md
README.md
kod źródłowy stron internetowych #pressrelease.txt
| # Awesome MakerDAO
Awesome-MakerDAO (AMD) is a community-driven project, designed to be a resource people can use to familiarize themselves with Dai and MakerDAO. All are welcome to contribute.
**Get Started**
Those interested in MakerDAO are invited to explore AMD's collection of resources below. Get to know Maker ... |
nataliebrooks_near-collect | README.md
babel.config.js
market-contract
Cargo.toml
README.md
build.sh
src
events.rs
external.rs
internal.rs
lib.rs
nft_callbacks.rs
order.rs
order_flow.rs
order_views.rs
sale.rs
sale_views.rs
nft-contract
Cargo.toml
... | Collect
==========
for the common good.
[](https://travis-ci.com/near-examples/guest-book)
[](https://gitpod.io/#https://github.com/near-examples/guest-book)
<!-- MAGIC COMME... |
Morowot_morowot.github.io | README.md
contract
Cargo.toml
README.md
build.sh
compile.js
src
approval.rs
enumeration.rs
events.rs
internal.rs
lib.rs
metadata.rs
mint.rs
nft_core.rs
royalty.rs
target
.rustc_info.json
debug
.fi... | nft-mint-frontend
==================
This [React] app was initialized with [create-near-app]
Quick Start
===========
To run this project locally:
1. Prerequisites: Make sure you've installed [Node.js] ≥ 12
2. Install dependencies: `yarn install`
3. Run the local development server: `yarn dev` (see `package.json` fo... |
andreykobal_amber-frontend | .gitpod.yml
README.md
babel.config.js
contract
Cargo.toml
README.md
compile.js
src
lib.rs
target
.rustc_info.json
debug
.fingerprint
Inflector-43feca6693eacde7
lib-inflector.json
autocfg-ce7784e1ec7b4471
... | holy-cube-amber
==================
This [React] app was initialized with [create-near-app]
Quick Start
===========
To run this project locally:
1. Prerequisites: Make sure you've installed [Node.js] ≥ 12
2. Install dependencies: `yarn install`
3. Run the local development server: `yarn dev` (see `package.json` for ... |
nearlog_nearlog-protocol | Cargo.toml
README.md
build.sh
contract
Cargo.toml
src
account.rs
account_asset.rs
actions.rs
asset.rs
asset_config.rs
big_decimal.rs
black_scholes.rs
config.rs
events.rs
fungible_token.rs
lib.rs
option_order.rs
... | # Nearlog Protocol Contract
Nearlog protolcol is a native Near open-source option market that allows traders to buy and sell options on cryptocurrencies against a pool of liquidity.
## Getting started
```
cd existing_repo
git remote add origin https://github.com/nearlog/nearlog-protocol.git
git branch -M main
git pu... |
nabeel-ahmed-troon_StoreFront-Admin | README.md
package.json
public
index.html
manifest.json
robots.txt
src
App.css
App.js
App.test.js
NearProvider
config.js
utils.js
components
Collections.js
CreateCollection.js
Header.js
InsertMetadata.js
IpfsUpload.js
index.css
... | # Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `npm start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view... |
Grekoff18_hackathon-status-message | .github
dependabot.yml
workflows
tests.yml
.gitpod.yml
.travis.yml
Cargo.toml
README-Gitpod.md
README-Windows.md
README.md
borsh.js
frontend
App.js
config.js
index.html
index.js
package-lock.json
package.json
src
lib.rs
test.bat
test.js
test.sh
tests-ava
README.md
__tests__
... | These tests use [near-workspaces-ava](https://github.com/near/workspaces-js/tree/main/packages/ava): delightful, deterministic local testing for NEAR smart contracts.
You will need to install [NodeJS](https://nodejs.dev/). Then you can use the `scripts` defined in [package.json](./package.json):
npm run test
If ... |
mgmoreira_Equipo5 | .idea
misc.xml
modules.xml
vcs.xml
README.md
as-pect.config.js
asconfig.json
build
debug
neardev
dev-account.env
neardev
dev-account.env
node_modules
@as-covers
assembly
CONTRIBUTING.md
README.md
index.ts
package.json
... | Overview [](https://travis-ci.org/lydell/js-tokens)
========
A regex that tokenizes JavaScript.
```js
var jsTokens = require("js-tokens").default
var jsString = "var foo=opts.foo;\n..."
jsString.match(jsTokens)
// ["var", " ", "foo", "=", "opt... |
nearnautnft_astro-marketplace-contract | Cargo.toml
src
external.rs
lib.rs
nft_callbacks.rs
target
.rustc_info.json
| |
Harshanaxs_nearblockchain- | README.md
package-lock.json
todos-crud-contract
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
index.spec.ts
as_types.d.ts
index.ts
model.ts
tsconfig.json
index.js
neardev
dev-account.env
package-lock.json
... | # Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `npm start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view... |
Icarocom_web-dapp-near | .env
.eslintrc.js
.github
workflows
chromatic.yml
lint.yml
.storybook
main.js
preview.js
.vscode
settings.json
CONTRIBUTING.md
README.md
components
Auth
authSlice.ts
Projects
index.ts
projectSlice.ts
icons
index.ts
items
elements
... | # Catch App
using
- [typescript](https://github.com/microsoft/TypeScript)
- [next.js](https://github.com/vercel/next.js)
- [tailwindcss](https://github.com/tailwindlabs/tailwindcss)
- [redux](https://github.com/reduxjs/redux)
- [firebase](https://github.com/firebase/firebase-js-sdk)
- [storybook](https://github.com/s... |
near-everything_canvas | .env
.github
ISSUE_TEMPLATE
bug_report.md
feature-request.md
workflows
release.yml
README.md
apps
canvas
bos.config.json
config
paths.js
presets
loadPreset.js
webpack.analyze.js
webpack.development.js
webpack.production.js
functions
[[accou... | # every canvas
Connect your canvas to the open web.
[everyone](https://near.social/mob.near/widget/Everyone) [builds](https://www.nearbuilders.org/) [everything](https://www.merriam-webster.com/dictionary/everything) [together](https://near.social).
# Context
[Saw... |
Hazarre_SharedDoc | .eslintrc.json
README.md
marine
shared_doc
Cargo.toml
Config.toml
build.sh
cfg.json
deploy.sh
src
main.rs
test.sh
package.json
sample.txt
src
_aqua
getting-started.ts
components
EssayForm.js
NameForm.js
index.css... | # SharedDoc with Fluence and Self.ID
Create a shared document app with [Fluence services](https://doc.fluence.dev/docs/), [Self.ID](https://developers.ceramic.network/reference/self-id/classes/web.SelfID/#authenticate) and React. Users can create, share and share files as well as adjust editing permission. A GUI in the... |
GoldenEagle1035_marketplace-smart-contracts_NEAR | .dependabot
config.yml
README.md
contracts
market
Cargo.toml
README.md
build-mainnet.sh
build-testnet.sh
build.sh
neardev
dev-account.env
src
external.rs
internal.rs
lib.rs
nft_callbacks.rs
... | # TBD
Amplify Art Music NFT & Marketplace Contract
==========================
Modules:
1) Market
2) NFTs
## Work Item: Show List of nfts in User's wallet
function nft_tokens_for_owner implementation is in progress.
These are old docs, but useful for understanding how it proceeded.
## Doc v0.5 ( Resolved Gas Errors ... |
mhassanist_letseducate | .env
.eslintrc.yml
.gitpod.yml
.travis.yml
README.md
as-pect.config.js
asconfig.json
babel.config.js
neardev
shared-test-staging
test.near.json
shared-test
test.near.json
package.json
src
environments
environment.prod.ts
environment.ts
index.html
interfaces.ts
pol... | # lLets Educate!
## Lets educate the world!
Connecting learners with believers all over the world!
Learners who can't afford education or buying courses use let's educate to seek fund, Beleivers worldwide can donate to help them learn.
Login to explore ..
Frontend of lets educate smart contract : https://github.com/m... |
itsdivgithub_BOSai-NEAR | .eslintrc.json
README.md
devcontainer.json
jsLibraryMappings.xml
modules.xml
next.config.js
package.json
prettier.xml
public
llm-functions-data
generate-bos-widget
code
prompt.md
prompt.md
generate-transaction
args
prompt.md
... | # NEAR (BOS)- BOSai ENCODE X NEAR HORIZON 2023
BOSai functions as a user's personal gateway into the blockchain ecosystem. It provides an interactive Chat Widget that guides users in navigating the BOS, answering their queries, and assisting in the initiation of blockchain interactions.
The platform comes with a built... |
Near-Grants-Projects_reits-africa-frontend | README.md
components
Dashboard
Dashboard.js
ExchangeOverview
ExchangeOverview.js
ExchangeTokenAmount
ExchangeToken.js
Feed
Feed.js
Layout.js
PeerToPeerExchange
PeerToPeerExchange.js
PeerToPeerOverview
PeerToPeerOverview.js
Pin
Pin.j... | # Reits Africa Frontend (Dashboard)
This is the dashboard for reits africa
### Run the Server
```bash
npm run dev
# or
yarn dev
```
Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
|
noemk2_enviar_recivir_as | README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
index.spec.ts
index.ts
package.json
| Enviar/Recivir near con AssemblyScript
==================
Introducción a enviar_recivir en near (assemblyScript)
==================
un enviar_recivir en near protocol, este contrato te perminte:
1. paga en near
2. recive en near
👨💻 Instalación en local
===========
Para correr este proyecto en local debe... |
esaminu_console-boilerplate-temsdfsdgasdapasdlate-rs-ss25dfghaafdghdfhg | .github
scripts
runfe.sh
workflows
deploy-to-console.yml
readme.yml
tests.yml
.gitpod.yml
README.md
contract
README.md
build.sh
deploy.sh
package-lock.json
package.json
src
contract.ts
model.ts
utils.ts
tsconfig.json
integration... | # Donation Contract
The smart contract exposes methods to handle donating $NEAR to a `beneficiary`.
```ts
@call
donate() {
// Get who is calling the method and how much $NEAR they attached
let donor = near.predecessorAccountId();
let donationAmount: bigint = near.attachedDeposit() as bigint;
let donatedSoFa... |
jacobnaumann_near-charity-project | README.md
as-pect.config.js
asconfig.json
package.json
scripts
1.dev-deploy.sh
2.use-contract.sh
3.cleanup.sh
README.md
src
as_types.d.ts
simple
__tests__
as-pect.d.ts
index.unit.spec.ts
asconfig.json
assembly
index.ts
singleton
... | ## Setting up your terminal
The scripts in this folder are designed to help you demonstrate the behavior of the contract(s) in this project.
It uses the following setup:
```sh
# set your terminal up to have 2 windows, A and B like this:
┌─────────────────────────────────┬─────────────────────────────────┐
│ ... |
iamvon_Pristorage | .gitpod.yml
GUIDE.md
README.md
babel.config.js
contract
Cargo.toml
README.md
compile.js
src
lib.rs
dist
avatar.svg
doc.svg
logo.svg
package.json
src
App.js
__mocks__
fileMock.js
assets
avatar.svg
doc.svg
logo-black.svg
logo-white.sv... | Vi storage 2.0 Smart Contract
==================
A [smart contract] written in [Rust] for an app initialized with [create-near-app]
Quick Start
===========
Before you compile this code, you will need to install Rust with [correct target]
Exploring The Code
==================
1. The main smart contract code lives i... |
Multiplier-Effect_Chainstock | README.md
package.json
public
index.html
manifest.json
robots.txt
static
icon.svg
src
App.js
App.test.js
Routes.js
components
Logo.js
index.js
layouts
DashboardLayout.js
DashboardNavbar.js
DashboardSidebar.js
MainLayout.js
M... | # Chainstock
## ChainStock를 소개합니다!
ChainStock은 비상장주식 중 비통일주식의 복잡한 거래방식과 주식 소유자 위변조 문제를 해결하는 블록체인 기반 비상장주식 거래 플랫폼입니다.
현재 투자자들의 많은 관심을 받고 있는 비상장주식은 거래 규모와 그 가치가 점점 더 커지고 있으나 비상장주식을 거래하는 데에는 많은 서류와 절차가 필요한 상황입니다. 또한 비상장주식의 소유자를 확인할 수 있는 방법이 시스템화 되어 있지 않아 양도자의 소유권 확인 역시 복잡하고 위변조 가능성이 있습니다. ChainStock은 블록체인을 통해 거래내역을 기록하... |
Learn-NEAR_NCD--wagers | .gitpod.yml
README.md
contract
README.md
as-pect.config.js
asconfig.json
assembly
__tests__
as-pect.d.ts
main.spec.ts
as_types.d.ts
index.ts
model.ts
tsconfig.json
compile.js
package-lock.json
package.json
package-lock.json
pack... | learn-near
==================
This app was initialized with [create-near-app]
Quick Start
===========
To run this project locally:
1. Prerequisites: Make sure you've installed [Node.js] ≥ 12
2. Install dependencies: `npm install`
3. Run the local development server: `npm run dev` (see `package.json` for a
full l... |
jerrymusaga_Crossword-Smart-Contaract | Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
NearDeFi_burrow-live-feed | package.json
public
index.html
manifest.json
robots.txt
src
App.js
App.test.js
components
SocialAccount
SocialAccount.js
common
MutedDecimals.js
token
TokenBadge.js
TokenBalance.js
TokenSymbol.js
data
... | |
laponte243_near-bookshop | Cargo.toml
README.md
src
lib.rs
| # near-bookshop
|
open-web-academy_owh-retos | 2023-03-guadalajara
README.md
aurora.md
comunidad-primero.md
mejor-pitch.md
meta-pool.md
near.md
2023-05-monterrey
README.md
bos-is-multichain.md
comunidad-primero.md
evm-is-bos.md
mejor-pitch.md
meta-pool.md
near-is-bos.md
pide-tu-merch.md
README.md
| # Open Web House - Los Retos
Construir = Colaborar
¿Eres capaz de sumarte a construir la web 3? Aquí te dejamos los retos para construir la Web 3.
Conoce más [aquí](https://ow.academy/house)
# Retos Open Web House Guadalajara
* ... |
open-web-academy_OWH-vending-machine-js | README.md
owa
open-web-house
vending-machine
.gitpod.yml
README.md
contract
README.md
babel.config.json
build.sh
deploy.sh
node_modules
.bin
sha.js
... | # color-convert
[](https://travis-ci.org/Qix-/color-convert)
Color-convert is a color conversion library for JavaScript and node.
It converts all ways between `rgb`, `hsl`, `hsv`, `hwb`, `cmyk`, `ansi`, `ansi16`, `hex` strings, and CSS `keywor... |
evgenykuzyakov_near-social-bot | README.md
index.js
package.json
run.sh
src
bot.js
near.js
openai.js
social.js
utils.js
| # near-social-bot
OpenAI based bot for NEAR Social
Add `.env` file:
```env
OPENAI_ORG = "org-XXXXXXXXXXXXXXXXXXXXXXXX"
OPENAI_API_KEY = "sk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
AI_COMMAND = "Your name is Bob\nYour account ID is @bob.near\nYou're friendly. Please reply to the thread.\n"
STOP_SEQ = "<BLA>"
NEAR_AC... |
kirana-network_kirana-network-contracts | v0
Cargo.toml
build.sh
deploy.sh
src
lib.rs
utils
package-lock.json
package.json
test.js
| |
NiFTyRent_nft-rental | .github
workflows
ci.yml
.gitpod.yml
README.md
contract
Cargo.toml
README.md
src
externals.rs
lib.rs
nft
core.rs
data_image_svg.txt
enumeration.rs
internal.rs
metadata.rs
mod.rs
utils.rs
demo_... | Welcome to NiFTyRent!
=================================
The [smart contract] written in [Rust] for [NiFTyRent].
Quick Start
===========
Before you compile this code, you will need to install Rust with [correct target]
Please also refer to ~/README.md for setup.
Exploring The Code
==================
1. The main sm... |
kels-orien_nft-marketplace-part-1 | README.md
nft-contract
Cargo.toml
build.bat
build.sh
src
approval.rs
enumeration.rs
events.rs
internal.rs
lib.rs
metadata.rs
mint.rs
nft_core.rs
royalty.rs
test.sh
package-lock.json
package.json
src
App.css
App.js
Cl... | # nft-marketplace-part-1
A [tutorial](https://dev.to/kels_orien/building-a-full-stack-nft-market-place-with-near-protocol-and-reactjs-ak9) of an NFT Market Place built using Near Protocol and React.js.
#### Preview
 {
// Get who is calling the method and how much $NEAR they attached
let donor = near.predecessorAccountId();
let donationAmount: bigint = near.attachedDeposit() as bigint;
let donatedSoFa... |
neararabic_near-hello-world-rs | Cargo.toml
README.md
rustfmt.toml
src
lib.rs
| # مرحباً نير مع رست NEAR Rust Hello World!
مشروع بسيط يعمل كنقطة بداية لمشاريعك ( العقود الذكية) على شبكة نيــر باستخدام لغة البرمجة رست Rust
## لتشغيل المشروع
يحتاج المشروع لتثبيت أدوات التطوير الخاصة بلغة رست و ويب أسمبلي rust and web assembly tool chain
يمكن اتباع خطوات تثبيتهم هنــاhttps://www.near-sdk.io/
1- ق... |
near_near-discovery-components | .github
ISSUE_TEMPLATE
bug_report.md
feature_request.md
new-dig-component.md
release.yml
workflows
deploy-dev-testnet.yml
deploy-prod-mainnet.yml
deploy-prod-testnet.yml
promote-develop-to-main.yml
prs_must_have_labels.yml
release_notes... | # QueryApi Indexers used by components
Several components use QueryApi Indexers as a source of data, specifically the ActivityFeed Posts & 'Following' Posts.
These indexers can be modified at https://near.org/dataplatform.near/widget/QueryApi.App under the dataplatform.near account.
Each indexer has a .sql schema fi... |
Na3aga_rust-near-basic | Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
nearprotocol_leaderboard | .vscode
launch.json
settings.json
README.md
database.rules.json
dist
index.html
firebase.json
node_modules
.bin
sha.js
@babel
code-frame
README.md
lib
index.js
package.json
core
README.md
lib
... | # Elliptic [](http://travis-ci.org/indutny/elliptic) [](https://coveralls.io/github/indutny/elliptic?branch=master) [](https://docs.near.org/tutorials/welcome)
[](https://gitpod.io/#/https://github.com/near-examples/donation-js)
[](https://docs.near.org/dev... |
PrimeLabCore_web3-diagram | Cargo.toml
README.md
|
cargo-diagram
Cargo.toml
src
main.rs
svg.rs
do-build.sh
do-docs.sh
do-run.sh
example
Cargo.toml
example.sh
src
events.rs
lib.rs
main.rs
some_fancy_impl.rs
some_fancy_impl
helpers.rs
trait_impl.rs
m... | # Web3 Diagram
## **This is a cargo utility that allows developers to generate visualizations depicting data flows within their NEAR Rust smart contracts.**
<br>
### Which problem does it solve?
**Provides the ability to generate representations of methods to allow for anyone to quickly understand how the contract w... |
LNThanhNhan_homework_near_app_day1 | .gitpod.yml
README.md
contract
Cargo.toml
README.md
neardev
dev-account.env
src
lib.rs
target
.rustc_info.json
frontend
App.js
dist
index.521b6793.js
index.5bcde184.js
index.cc397963.js
index.d6a4dc8d.js
index.html
index.htm... | Hello NEAR!
=================================
A [smart contract] written in [Rust] for an app initialized with [create-near-app]
Quick Start
===========
Before you compile this code, you will need to install Rust with [correct target]
Exploring The Code
==================
1. The main smart contract code lives in `... |
hkuspace-pu_COMP-3000-Ngan-Tsz-Chung-FYP | .gitpod.yml
README.md
blockchain_mobile_application_demo
Blockchain
.idea
compiler.xml
gradle.xml
misc.xml
vcs.xml
app
release
output-metadata.json
src
main
AndroidManifest.xml... | Blockchain in e-voting
======================
This app was initialized with [create-near-app]
The aim of this project is for education only.
It is developed for knowing more about how the blockchain
enhance the security in e-voting.
Quick Start
===========
Build and deploy your contract to TestNet with a temporary... |
jerryno6_starter--AssemblyScript | README.md
as-pect.config.js
asconfig.json
package-lock.json
package.json
scripts
1.init.sh
2.run.sh
README.md
src
as-pect.d.ts
as_types.d.ts
sample
README.md
__tests__
README.md
index.unit.spec.ts
asconfig.json
assembly
index.ts... | 
## Design
### Interface
```ts
export function showYouKnow(): void;
```
- "View" function (ie. a function that does NOT alter contract state)
- Takes no parameters
- Returns nothing
```ts
export function showYouKnow2(): ... |
pmespresso_direct-revelation-dao | .gitpod.yml
README.md
contract
Cargo.toml
README.md
build.sh
deploy.sh
src
lib.rs
policy.rs
proposals.rs
types.rs
upgrade.rs
views.rs
target
.rustc_info.json
debug
.fingerprint
Inflector-778f054d6abc56ef
... | # meta-dao
Meta DAO is a fork of Sputnik DAO with bounties and delegation logic removed. The point was to add the Price Ascension mechanism described in https://a16zcrypto.com/paying-people-to-participate-in-governance/ to an existing DAO.
The contract has been deployed on Testnet to: https://explorer.testnet.near.or... |
happyfisherod_nft-market-solana | .eslintrc.js
.github
workflows
node.js.yml
README.md
changelog.md
contracts
ft
Cargo.toml
README.md
build.sh
src
fungible_token_core.rs
fungible_token_metadata.rs
internal.rs
lib.rs
storage_manager.rs
market-... | Minimal NEP141 + Metadata Token Launcher
TBD
Fork of: https://github.com/mikedotexe/nep-141-examples (basic)
# TBD
# TBD
# NFT Market Reference Implementation
A PoC backbone for NFT Marketplaces on NEAR Protocol.
[Reference](https://nomicon.io/Standards/NonFungibleToken/README.html)
# Changelog
[Changelog](change... |
junkei-okinawa_near-election-dapp | near-election-dapp-contract
Cargo.toml
src
enumeration.rs
internal.rs
lib.rs
metadata.rs
mint.rs
nft_core.rs
vote.rs
near-election-dapp-frontend
.gitpod.yml
README.md
frontend
App.js
__mocks__
fileMock.js
ass... | near-blank-project
==================
This [React] app was initialized with [create-near-app]
Quick Start
===========
To run this project locally:
1. Prerequisites: Make sure you've installed [Node.js] ≥ 12
2. Install dependencies: `yarn install`
3. Run the local development server: `yarn dev` (see `package.json` f... |
andersonferrari_near-sdk-playground | Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
Peersyst_theoutsidersart-nft | .eslintrc.js
README.md
flatten.sh
lib
setupCreatureAccessories.js
testValuesCommon.js
valuesCommon.js
metadata-api
app.py
images
output
temp.txt
requirements.txt
src
pip-delete-this-directory.txt
metadata
index.js
migrations
1_initial_migrations.js
2_d... | ## OpenSea Creatures - Starter ERC721, ERC1155, and factory contracts
What's included:
### Sample ERC721/ERC1155 Contracts
This includes a very simple sample ERC721 / ERC1155 for the purposes of demonstrating integration with the [OpenSea](https://opensea.io) marketplace. We include a script for minting the items.
... |
mehmetali765_DemoNameSuggestionProject | README.md
as-pect.config.js
asconfig.json
package.json
scripts
1.build-deploy.sh
2.add-advert.sh
3.add-suggest.sh
4.advert-functions.sh
5.suggest-functions.sh
src
as_types.d.ts
simple
__tests__
as-pect.d.ts
index.unit.spec.ts
asconfig.json
asse... | # Demo Name Suggestion Project
-------
This project includes companies that need a name by posting advertisements and receiving name suggestions. The company that opens the advertisement will pay the amount specified when opening the advertisement for the name it chooses from among those who propose a name. He will no... |
malytinKonstantin_near-react-app | .idea
dbnavigator.xml
modules.xml
vcs.xml
README.md
package-lock.json
package.json
public
index.html
manifest.json
robots.txt
src
components
Container
index.ts
styles.css
Header
index.ts
RGBContract
index.ts
inde... | # Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `npm start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view... |
keypom_aha-boilerplate | README.md
__tests__
create-tix.js
nearcon-keys.json
nearcon
nearcon.ava.ts
utils.ts
tests.ava.ts
utils
keypom.ts
types.ts
workspaces.ts
contract
Cargo.toml
build.sh
src
approval.rs
enumeration.rs
events.rs
internal.r... | # Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `npm start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view... |
nel349_NEARCON-2022 | .eslintrc.js
.expo-shared
assets.json
NEAR
lensWebViewSupport
.github
workflows
tests.yml
.gitpod.yml
README.md
contract
README.md
babel.config.json
build.sh
deploy.sh
package.json
... | # Donation 💸
[](https://docs.near.org/tutorials/welcome)
[](https://gitpod.io/#/https://github.com/near-examples/donation-js)
[](https://docs.near.org/dev... |
near-examples_guest-book-examples | .devcontainer
devcontainer.json
.github
workflows
tests-rs.yml
tests-ts.yml
README.md
contract-rs
Cargo.toml
README.md
rust-toolchain.toml
src
lib.rs
tests
sandbox.rs
contract-ts
README.md
package.json
sandbox-ts
main.ava.ts
src
... | # Guest Book Contract
The smart contract stores messages from users. Messages can be `premium` if the user attaches sufficient money (0.1 $NEAR).
```ts
this.messages = [];
@call
// Public - Adds a new message.
add_message({ text }: { text: string }) {
// If the user attaches more than 0.1N the message is premium
... |
mhassanist_jobchain | README.md
job-chain
as-pect.config.js
asconfig.json
assembly
__tests__
index.unit.spec.ts
index.ts
models.ts
tsconfig.json
utils.ts
index.js
package-lock.json
package.json
scripts
0-check-account.sh
1-build-deploy.sh
... | # job-chain
## Note!
This project is meant for educational purposes only. It was developed as a part of the [NEAR](https://near.org/) certififed developer program. It is not production-ready and it misses a lot of test, validations and business logic. The project is built using [NEAR](https://near.org/) 's AssemblySc... |
george-shammar_Insignia | README.md
artifacts
@openzeppelin
contracts
access
Ownable.sol
Ownable.dbg.json
Ownable.json
security
Pausable.sol
Pausable.dbg.json
Pausable.json
token
... | 
# INSIGNIA
## OVERVIEW
Insignia is a 3D military strategy blockchain game application. A multi-player play-and-earn game, set in a medieval metaverse. With an immersive experience and one that provides an unequaled earning... |
kharioki_crossword-frontend | README.md
contract
Cargo.toml
README.md
build.bat
build.sh
src
lib.rs
test.sh
package.json
public
index.html
manifest.json
robots.txt
src
App.css
App.js
config.js
hardcoded-data.js
index.css
index.js
utils.js
webpack.config.js
| # Rust Smart Contract Template
## Getting started
To get started with this template:
1. Click the "Use this template" button to create a new repo based on this template
2. Update line 2 of `Cargo.toml` with your project name
3. Update line 4 of `Cargo.toml` with your project author names
4. Set up the [prerequisites... |
Ideevoog_Toolblox.Ada.App | .github
workflows
adawillhandlefunctions.yml
LICENSE.md
Lib
NBitcoin.deps.json
NBitcoin.xml
Toolblox.Ada.App.Model.deps.json
Toolblox.Cryptography.deps.json
Toolblox.Model.deps.json
README.md
Toolblox.Ada.App.Blockchain.Functions
.vscode
extensions.json
launch.json
... | # Toolblox.Ada.App
|
near_near-api-js | commitlint.config.js
packages
accounts
jest.config.js
test
account.access_key.test.js
account.test.js
account_multisig.test.js
config.js
contract.test.js
contract_abi.test.js
lve_runtime.test.js
lve_stora... |
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