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{"title":"Delegates in swift?","tags":["delegates","swift","delegation"],"question_text":"How does one go about making a delegate, i.e.\n`NSUserNotificationCenterDelegate`\nin swift?","answer_text":"Here's a little help on delegates between two view controllers:\nStep 1:\nMake a protocol in the UIViewController that yo... |
{"title":"Why is volatile not considered useful in multithreaded C or C++ programming?","tags":["c++","c","multithreading","volatile","c++-faq"],"question_text":"As demonstrated in\nthis answer\nI recently posted, I seem to be confused about the utility (or lack thereof) of\n`volatile`\nin multi-threaded programming co... |
{"title":"UITableView with static cells does not appear","tags":["ios","uitableview","xcode-storyboard"],"question_text":"I have created a new Xcode project using Storyboards (tab view template). I added a couple of view controllers to my storyboard, and wanted to use a UITableView with static cells for one. I created ... |
{"title":"How to implement the activity stream in a social network","tags":["design-patterns","stream","social-networking"],"question_text":"I'm developing my own social network, and I haven't found on the web examples of implementation the stream of users' actions... For example, how to filter actions for each users? ... |
{"title":"When to use Cast() and Oftype() in Linq","tags":["c#",".net","linq"],"question_text":"I am aware of two methods of casting types to\n`IEnumerable`\nfrom an\n`Arraylist`\nin Linq and wondering in which cases to use them?\ne.g\n`IEnumerable<string> someCollection = arrayList.OfType<string>()`\nor\n`IEnumerable<... |
{"title":"Why is 0[0] syntactically valid?","tags":["javascript"],"question_text":"Why is this line valid in javascript ?\n`var a = 0[0];`\nAfter that,\n`a`\nis\n`undefined`\n.","answer_text":"When you do\n`0[0]`\n, the JS interpreter will turn the first\n`0`\ninto a\n`Number`\nobject and then try to access the\n`[0]`\... |
{"title":"How can i set NODE_ENV=production in Windows?","tags":["node.js","express"],"question_text":"In Ubuntu it's quite simple, I can run the application using:\n`$ NODE_ENV=production node myapp\/app.js`\nHowever this doesn't work in Windows. Is there a configuration file where I can set the attribute?","answer_te... |
{"title":"Can't use modulus on doubles?","tags":["c++","modulo"],"question_text":"I have a program in C++ (compiled using g++). I'm trying to apply two doubles as operands to the modulus function, but I get the following error:\nerror: invalid operands of types 'double' and 'double' to binary 'operator%'\nHere's the co... |
{"title":"Assembly code vs Machine code vs Object code?","tags":["assembly","machine-code","object-code"],"question_text":"What is the difference between object code, machine code and assembly code?\nCan you give a visual example of their difference?","answer_text":"Machine code is binary (1's and 0's) code that can be... |
{"title":"get an element's id","tags":["javascript","html"],"question_text":"is there another way to get an element's ID?\n`obj.getAttribute('id')`","answer_text":"Yes you can just use the\n`.id`\nproperty\nof the\ndom element\n, for example:\n`myDOMElement.id`\nOr, something like this:\n`var inputs = document.getEleme... |
{"title":"function to get the file name of an URL","tags":["iphone"],"question_text":"I have some source code to get the file name of an url\nfor example:\nhttp:\/\/www.google.com\/a.pdf\nI hope to get a.pdf\nbecause the way to join 2 NSStrings I can get is 'appendString' which only for adding a string at right side, s... |
{"title":"Is the primary key automatically indexed in MySQL?","tags":["mysql","database","indexing","key"],"question_text":"Do you need to explicitly create an index, or is it implicit when defining the primary key? Is the answer the same for MyISAM and InnoDB?","answer_text":"The primary key is always indexed. This is... |
{"title":"What does \"exited with code 9009\" mean during this build?","tags":[".net","visual-studio"],"question_text":"What does this error message mean? What could I do to correct this issue?\nAssemblyInfo.cs exited with code 9009\nThe problem is probably happening as part of a post-build step in a .NET solution in V... |
{"title":"Converting audio to CAF format for playback on iPhone using OpenAL","tags":["iphone","core-audio","openal","afconvert"],"question_text":"I am using the SoundEngine sample code from Apple in the CrashLanding sample to play back multiple audio files. Using the sample caf files included with CrashLanding everyth... |
{"title":"What's better at freeing memory with PHP: unset() or $var = null","tags":["php"],"question_text":"I realise the second one avoids the overhead of a function call (\nupdate\n, is actually a language construct), but it would be interesting to know if one is better than the other. I have been using\n`unset()`\nf... |
{"title":"PHP best way to MD5 multi-dimensional array?","tags":["php","hash","arrays","multidimensional-array"],"question_text":"i was wondering what is the best way to generate an MD5 (or any other hash) of a multi-dimensional array?\nI could easily write a loop which would traverse through each level of the array, co... |
{"title":"Are iframes considered 'bad practice'?","tags":["html","iframe","standards"],"question_text":"Somewhere along the line I picked up the notion that using iframes is 'bad practice'.\nIs this true? What are the pros\/cons of using them?","answer_text":"As with all technologies, it has its ups and downs. If you a... |
{"title":"Elegant ways to support equivalence (\"equality\") in Python classes","tags":["python","equality","equivalence"],"question_text":"When writing custom classes it is often important to allow equivalence by means of the\n`==`\nand\n`!=`\noperators. In Python, this is made possible by implementing the\n`__eq__`\n... |
{"title":"How to get the current directory in a C program?","tags":["c","unix","working-directory"],"question_text":"I'm making a C program where I need to get the directory that the program is started from. This program is written for UNIX computers. I've been looking at\n`opendir()`\nand\n`telldir()`\n, but\n`telldir... |
{"title":"What is data oriented design?","tags":["paradigms","data-oriented-design"],"question_text":"I was reading\nthis article\n, and this guy goes on talking about how everyone can greatly benefit from mixing in data oriented design with OOP. He doesn't show any code samples, however.\nI googled this and couldn't f... |
{"title":"Git and DiffTool problems : What do LOCAL and REMOTE point to?","tags":["git","difftool"],"question_text":"Ive been working on getting tortoisemerge working as the difftool option in Git with my .gitconfig file currently showing :\n`[diff]\n tool = tortoise\n [difftool \"tortoise\"]\n cmd = tortoisemerge.exe ... |
{"title":"Rails 3 has_and_belongs_to_many migration","tags":["ruby-on-rails","ruby-on-rails-3","migration","has-and-belongs-to-many"],"question_text":"I have two models\n`restaurant`\nand\n`user`\nthat I want to perform a has_and_belongs_to_many relationship.\nI have already gone into the model files and added the\n`ha... |
{"title":"Visual C++ 2008 Express Download Link Dead?","tags":["c++","ide","download"],"question_text":"the programming class I am currently taking uses Visual C++ 2008, and to work from home, we have the option of getting the express edition. I can't find the download link anywhere on the website, and the Microsoft su... |
{"title":"run function when page is loaded","tags":["javascript","onload"],"question_text":"I want to run a function when the page is loaded, but I don't want to use it in the body tag.\nI have a script that runs if I initialise it in the body -like this:\n`function codeAddress() {\n code.....\n}\n<body onLoad=\"codeAd... |
{"title":"Getting the .NET Framework directory path","tags":["c#",".net","frameworks","directory"],"question_text":"How can I obtain the .NET Framework directory path inside my C# application?\nThe folder that I refer is \"C:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727\"","answer_text":"The path to the installation ... |
{"title":"git add -A, git commit in one command?","tags":["git"],"question_text":"Is there any way I can do\n`git add -A\ngit commit -m \"commit message\"`\nin one command? I seem to be doing those two commands a lot, and if Git had an option like\n`git commit -Am \"commit message\"`\n, it would make life that much mor... |
{"title":"Collection<T> versus List<T> what should you use on your interfaces?","tags":["c#",".net","collections","code-analysis"],"question_text":"The code looks like below:\n`namespace Test\n{\n public interface IMyClass\n {\n List<IMyClass> GetList();\n }\n public class MyClass : IMyClass\n {\n public List<IMyClass>... |
{"title":"Maven: what is pluginManagement?","tags":["java","maven","build","pom.xml"],"question_text":"This is a snippet of my pom file.\n`....\n <plugins>\n <plugin>\n <groupId>org.apache.maven.plugins<\/groupId>\n <artifactId>maven-dependency-plugin<\/artifactId>\n <version>2.4<\/version> \n <executions>\n <execution... |
{"title":"Why RegExp with global flag in Javascript give wrong results?","tags":["javascript","regex"],"question_text":"What is the problem with this regular expression when I use the global flag and the case insensitive flag? Query is a user generated input. The result should be [true, true].\n`var query = 'Foo B';\nv... |
{"title":"Bash - remove the last line from a file","tags":["bash","scripting","command-line"],"question_text":"I have a file,\n`foo.txt`\n, containing the following lines:\n`a\nb\nc`\nI want a simple command that results in the contents of\n`foo.txt`\nbeing:\n`a\nb`","answer_text":"Using\n`GNU sed`\n:\n`sed -i '$ d' fo... |
{"title":"LINQ-to-SQL vs stored procedures?","tags":["linq","linq-to-sql","stored-procedures"],"question_text":"I took a look at the \"Beginner's Guide to LINQ\" post here on StackOverflow (\nhttp:\/\/stackoverflow.com\/questions\/8050\/beginners-guide-to-linq\n), but had a follow-up question:\nWe're about to ramp up a... |
{"title":"How to check the version before install packages using apt-get","tags":["debian","version","apt","apt-get","dpkg"],"question_text":"I'm thinking to install hylafax+ version 5.5.4 which was release last month on my\nDebian\nPC.\nI checked\n`dpkg -l | grep \"hylafax\"`\nand found out that the current version is... |
{"title":"iPhone :UITableView CellAccessory Checkmark","tags":["iphone","objective-c","uitableview","ios4"],"question_text":"In iPhone App on click of table view cell I want to display Table view cell Accessory type Check mark for that on didSelectRowAtIndexPath i am writing code\n`if(indexPath.row ==0)\n{\n[tableView ... |
{"title":"Python -- return, return None, and no return at all","tags":["python",null,"return"],"question_text":"Consider three functions:\n`def my_func1():\n print \"Hello World\"\n return None\ndef my_func2():\n print \"Hello World\"\n return\ndef my_func3():\n print \"Hello World\"`\nThey all appear to return None. A... |
{"title":"How do I byte-compile everything in my .emacs.d directory?","tags":["emacs","elisp","bytecode","dot-emacs"],"question_text":"I have decided to check out Emacs, and I liked it very much. Now, I'm using the\nEmacs Starter Kit\n, which sort of provides better defaults and some nice customizations to default inst... |
{"title":"Read input from console in Ruby?","tags":["ruby","console"],"question_text":"I want to write a simple A+B program in ruby, but I have no idea how to work with the console.","answer_text":"Are you talking about\n`gets`\n?\n`puts \"Enter A\"\na = gets.chomp\nputs \"Enter B\"\nb = gets.chomp\nc = a.to_i + b.to_i... |
{"title":"Delaying a jquery script until everything else has loaded","tags":["javascript","jquery","dom"],"question_text":"I have a jquery script which I need to run only once everything else on the page, including some other javascripts (over which I have no control) have finished doing their thing.\nI though perhaps ... |
{"title":"Create directory if it does not exist","tags":["powershell","windows-server-2008","powershell-ise"],"question_text":"I am writing a PowerShell script to create several directories if they do not exist.\nThe filesystem looks similar to this\n`D:\\\nD:\\TopDirec\\SubDirec\\Project1\\Revision1\\Reports\\\nD:\\To... |
{"title":"Performance surprise with \"as\" and nullable types","tags":["c#","performance","clr","nullable","unboxing"],"question_text":"I'm just revising chapter 4 of C# in Depth which deals with nullable types, and I'm adding a section about using the \"as\" operator, which allows you to write:\n`object o = ...;\nint?... |
{"title":"calculating the difference in months between two dates","tags":["c#",".net","datetime","timespan"],"question_text":"In C#\/.NET\n`TimeSpan`\nhas\n`TotalDays`\n,\n`TotalMinutes`\n, etc. but I can't figure out a formula for total months difference. Variable days per month and leap years keep throwing me off. Ho... |
{"title":"What are the pros and cons of the SVN plugins for Eclipse, Subclipse and Subversive?","tags":["svn","eclipse","subclipse","subversive"],"question_text":"SVN in Eclipse is spread into 2 camps. The SVN people have developed a plugin called\nSubclipse\n. The Eclipse people have a plugin called\nSubversive\n. Bro... |
{"title":"Rails - Nested includes on Active Records?","tags":["ruby-on-rails","rails-activerecord"],"question_text":"I have a list of events that I fetch.\nI'm trying to include every user associated to this event and every profile associated to each user. The Users get included but not their profiles.\nHow Would i do ... |
{"title":"Compare two List<T> objects for equality, ignoring order","tags":["c#","list","comparison","equals"],"question_text":"Yet another list-comparing question.\n`List<MyType> list1;\nList<MyType> list2;`\nI need to check that they both have the same elements, regardless of their position within the list. Each\nMyT... |
{"title":"Find a private field with Reflection?","tags":["c#",".net","reflection",".net-attributes"],"question_text":"Given this class\n`class Foo\n{\n \/\/ Want to find _bar with reflection\n [SomeAttribute]\n private string _bar;\n public string BigBar\n {\n get { return this._bar; }\n }\n}`\nI want to find the priva... |
{"title":"How do I declare class-level properties in Objective-C?","tags":["objective-c","cocoa","oop"],"question_text":"Maybe this is obvious, but I don't know how to declare class properties in Objective-C.\nI need to cache per-class a dictionary and wonder how put it in the class.","answer_text":"properties have a s... |
{"title":"How to test if one java class extends another at runtime?","tags":["java","subclass","instanceof","class-hierarchy"],"question_text":"How to I test if\n`a`\nis a subclass of\n`b`\n?\n`Class<?> a = A.class;\nClass<?> b = B.class;`","answer_text":"Are you looking for:\n`Super.class.isAssignableFrom(Sub.class)`"... |
{"title":"Addition for BigDecimal","tags":["java","bigdecimal"],"question_text":"I want to do some simple sums with some currency values expressed in\n`BigDecimal`\ntype.\n`BigDecimal test = new BigDecimal(0);\nSystem.out.println(test);\ntest.add(new BigDecimal(30));\nSystem.out.println(test);\ntest.add(new BigDecimal(... |
{"title":"Does opacity:0 have exactly the same effect as visibility:hidden","tags":["html","css"],"question_text":"If so, does it effectively deprecate the\n`visibility`\nproperty?\n(I realize that Internet Explorer does not yet support this CSS2 property.)\nComparisons of layout engines\nSee also: What is the differen... |
{"title":"When should I use \"this\" in a class?","tags":["java","oop","this"],"question_text":"I know that\n`this`\nrefers to a current object. But I do not know when I really need to use it. For example, will be there any difference if I use\n`x`\ninstead of\n`this.x`\nin some of the methods? May be\n`x`\nwill refer ... |
{"title":"What does \"where T : class, new()\" mean?","tags":["c#","generics","type-constraints"],"question_text":"Can you please explain to me what\n`where T : class, new()`\nmeans in the following line of code?\n`void Add<T>(T item) where T : class, new();`","answer_text":"That is a constraint on the generic paramete... |
{"title":"What is the simplest SQL Query to find the second largest value?","tags":["sql","puzzle"],"question_text":"What is the simplest SQL query to find the second largest integer value in a specific column?\nThere are maybe duplicate values in the column.","answer_text":"`SELECT MAX( col )\n FROM table\n WHERE col ... |
{"title":"How to bind a command in WPF to a double click event handler of a control?","tags":["wpf","data-binding","mvvm","command","double-click"],"question_text":"I need to bind the double click event of a textblock (or potentially an image as well - either way, its a user control), to a command in my ViewModel.\nTex... |
{"title":"How to programmatically add a UISegmentedControl to a container view","tags":["iphone","objective-c","xcode","uisegmentedcontrol"],"question_text":"How would I define the frame for a\n`UISegmentedControl`\n? \nI would like the segmented control to appear at the bottom of a\n`container view`\ni.e\n`UIView`\n."... |
{"title":"Charts for Android","tags":["android","graph","charts"],"question_text":"I am working on a project which have some charts (graphs), tick chart, candlestick chart and range chart. But the problem is, there is no library for that charts. I have got Google chart api for candlestick chart. But I don't want graph\... |
{"title":"Using \"like\" wildcard in prepared statement","tags":["java","mysql","jdbc","prepared-statement"],"question_text":"I am using prepared statements to execute mysql database queries. And I want to implement a search functionality based on a keyword of sorts.\nFor that I need to use\n`LIKE`\nkeyword, that much ... |
{"title":"Redirect non-www to www in .htaccess","tags":[".htaccess"],"question_text":"I have this in my .htaccess file:\n`RewriteCond %{HTTP_HOST} ^example.com$\nRewriteRule (.*) http:\/\/www.example.com$1 [R=301,L]`\nbut whenever I access a file on my root like\n`http:\/\/example.com\/robots.txt`\nit will redirect to\... |
{"title":"How can I read and parse CSV files in C++?","tags":["c++","parsing","text","csv"],"question_text":"I need to load and use CSV file data in C++. At this point it can really just be a comma-delimited parser (ie don't worry about escaping new lines and commas). The main need is a line-by-line parser that will re... |
{"title":"jquery-ui sortable | How to get it work on iPad\/touchdevices?","tags":["ipad","jquery-ui","scroll","touch","sortable"],"question_text":"How do I get the jquery-ui sortable feature working on iPad and other touch platforms?\nhttp:\/\/jqueryui.com\/demos\/sortable\/\nI tried to work with\n`event.preventDefault... |
{"title":"No suitable application records were found","tags":["ios","ios4","app-store"],"question_text":"I created an App Store archive file. During validation it raises an error with the following message\nPlease make sure that you have set up a record for this application on iTunes Connect.","answer_text":"I've just ... |
{"title":"Ignore whitespace in HTML","tags":["html","css","whitespace"],"question_text":"Is there anything in HTML\/CSS that tells the browser to ignore whitespace completely?\nSo many times when you want to put, say, two images next to each other - you try desperately to keep the HTML readable, but the browser puts a ... |
{"title":"How to loop through an associative array and get the key?","tags":["php","loops","associative-array"],"question_text":"My associative array:\n`$arr = array(\n 1 => \"Value1\",\n 2 => \"Value2\",\n 10 => \"Value10\"\n);`\nUsing the following code,\n`$v`\nis filled with\n`$arr`\n's values\n`foreach($arr as $v){... |
{"title":"Android - ListView click HOWTO?","tags":["android","listview","click"],"question_text":"How do I listen to click event on a ListView?\nThis is what I have now\n`ListView list = (ListView)findViewById(R.id.ListView01); \n... \nlist.setAdapter(adapter);`\nWhen I do the following\n`list.setOnItemSelectedListener... |
{"title":"Java: How to read a text file","tags":["java","arraylist","file-io","text-files"],"question_text":"I want to read a text file containing space separated values. Values are integers.\nHow can I read it and put it in an array list?\nHere is an example of contents of the text file:\n`1 62 4 55 5 6 77`\nI want to... |
{"title":"Undefined reference to static class member","tags":["c++","g++"],"question_text":"Can anyone explain why following code won't compile? At least on g++ 4.2.4.\nAnd more interesting, why it will compile when I cast MEMBER to int?\n`#include <vector>\nclass Foo { \npublic: \n static const int MEMBER = 1; \n};\ni... |
{"title":"jquery save json data object in cookie","tags":["jquery","cookies"],"question_text":"How do I save JSON data in a cookie?\nMy JSON data looks like this\n`$(\"#ArticlesHolder\").data('15', {name:'testname', nr:'4',price:'400'});\n$(\"#ArticlesHolder\").data('25', {name:'name2', nr:'1', price:'100'});\n$(\"#Art... |
{"title":"How to request Google to re-crawl my website?","tags":["seo","web-crawler"],"question_text":"Does someone know a way to request Google to re-crawl a website? And this shouldn't last months if possible? My site is showing the wrong title in Google's search results. How can I show it with the correct title and ... |
{"title":"HTML5: number input type that takes only integers?","tags":["jquery","html5","validation","jquery-tools"],"question_text":"I'm using the jQuery Tools\nValidator\nwhich implements HTML5 validations through jQuery. It's been working great so far except for one thing. In the HTML5 specification, the input type \... |
{"title":"Is there a way to make text unselectable on an HTML page?","tags":["javascript","html","css","cross-browser","textselection"],"question_text":"I'm building an HTML UI with some text elements, such as tab names, which look bad when selected. Unfortunately, it's very easy for a user to double-click a tab name, ... |
{"title":"How to select .Net 4.5.2 as a target framework in Visual Studio","tags":[".net","visual-studio",".net-4.5.2"],"question_text":"I have installed\n.Net Framework 4.5.2\non Windows 8.1. But in Visual Studio 2013 I do not see the .Net Framework 4.5.2 option (see screenshot). How do I target my project for .Net 4.... |
{"title":"Angularjs loading screen on ajax request","tags":["angularjs","angularjs-directive"],"question_text":"Using Angularjs , I need to show a loading screen (a simple spinner) until ajax request is complete. Please suggest any idea with a code snippet.","answer_text":"Instead of setting up a scope variable to indi... |
{"title":"How to start an Intent by passing some parameters to it?","tags":["android","constructor","android-intent"],"question_text":"I would like to pass some variables in the constructor of my ListActivity\nI start activity via this code:\n`startActivity(new Intent (this, viewContacts.class));`\nI would like to use ... |
{"title":"Creating UIActionSheet","tags":["ios","objective-c","uiactionsheet"],"question_text":"I would like to create this kind of menu, of course with other menu buttons. Is there any default viewcontroller representing it, or do I have to get images and create this by myself.","answer_text":"You need to use a\n`UIAc... |
{"title":"jQuery scroll() detect when user stops scrolling","tags":["javascript","jquery","javascript-events","scroll"],"question_text":"Ok with this..\n`$(window).scroll(function()\n{\n $('.slides_layover').removeClass('showing_layover');\n $('#slides_effect').show();\n});`\nI can tell when someone is scrolling from w... |
{"title":"Why does scanf() need \"%lf\" for doubles, when printf() is okay with just \"%f\"?","tags":["c","scanf"],"question_text":"Why is it that\n`scanf()`\nneeds the\n`l`\nin \"\n`%lf`\n\" when reading a\n`double`\n, when\n`printf()`\ncan use \"\n`%f`\n\" regardless of whether its argument is a\n`double`\nor a\n`flo... |
{"title":"How do I fix \"Add myBundle to the asseticBundle config\" symfony2 exception?","tags":["php","symfony2","twig"],"question_text":"When I am trying to use the TWIG\n`{% javascript %}`\ntag to link to my\n`.js`\nfile it return me with the following exception :\n`An exception has been thrown during the compilatio... |
{"title":"C++ : why bool is 8 bits long?","tags":["c++","boolean","size"],"question_text":"In C++, I'm wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ?\nI used to believe it was for performance reasons, but then on a 32 bits or 64 bits machine, where re... |
{"title":"How can I create a custom UIActivity in iOS?","tags":["ios","objective-c","uiactivityviewcontroller","uiactivity"],"question_text":"How can I create a custom\n`UIActivity`\nin iOS?\nThe reason I want this is to add a Review App button in one of my apps that takes the user to the review section in the App Stor... |
{"title":"How to switch position of two items in a Python list?","tags":["python","list","order"],"question_text":"I haven\u00e2\u0080\u0099t been able to find a good solution for this problem on the net (probably because switch, position, list and Python are all such overloaded words).\nIt\u00e2\u0080\u0099s rather si... |
{"title":"How do I generate sourcemaps when using babel and webpack?","tags":["javascript","webpack","build-process","babeljs","source-maps"],"question_text":"I'm new to webpack, and I need a hand in setting up to generate sourcemaps. I'm running\n`webpack serve`\nfrom the command line, which compiles successfully. But... |
{"title":"How to check if a string contains only digits in Java","tags":["java","string"],"question_text":"In Java for String class there is a method called matches, how to use this method to check if my string is having only digits using regular expression. I tried with below examples, but both of them returned me fal... |
{"title":"Stack, Static, and Heap in C++","tags":["c++","static","garbage-collection","stack","heap"],"question_text":"I've searched, but I've not understood very well these three concepts. When do I have to use dynamic allocation (in the heap) and what's its real advantage? What are the problems of static and stack? C... |
{"title":"Accessing the logged-in user in a template","tags":["symfony2","twig","fosuserbundle"],"question_text":"I'm using FOSuserbundle to get started with User registration\nhttps:\/\/github.com\/FriendsOfSymfony\/FOSUserBundle\nI've got it registering \/ logging in and out. What I want to do now is grab the logged ... |
{"title":"Sum of all values in a Python dict","tags":["python","dictionary","hash","sum"],"question_text":"I'm new to Python. Let's say I have a dictionary in which the keys map to integers like:\n`d = {'key1':1,'key2':14,'key3':47}`\nIs there a syntactically minimalistic way to return the sum of the values in d--i.e. ... |
{"title":"print second last column\/field in AWK","tags":["awk","gawk"],"question_text":"I want to print the second last column or field in awk. The number of fields is variable. I know that I should be able to use\n`$NF`\nbut not sure how it can be used.\nAnd this does not seem to work:\n`awk ' { print ( $NF-- ) } '`"... |
{"title":"Preferred Java way to ping an HTTP URL for availability","tags":["java","http","url","ping"],"question_text":"I need a monitor class that regularly checks whether a given HTTP URL is available. I can take care of the \"regularly\" part using the Spring TaskExecutor abstraction, so that's not the topic here. T... |
{"title":"Tools for analyzing performance of a Haskell program","tags":["haskell","performance","profiling"],"question_text":"While solving some Project Euler Problems to learn Haskell (so currently I'm a completly beginner) I came over\nProblem 13\n. I wrote this (naive) solution:\n`--Get Number of Divisors of n\nnumD... |
{"title":"SQLiteDatabase.query method","tags":["android","sqlite"],"question_text":"I am using the query method of SQLiteDatabase. How do I use the query method?\nI tried this:\n`Cursor cursor = sqLiteDatabase.query(\n tableName, tableColumns, whereClause, whereArgs, groupBy, having, orderBy);`\ntableColumns\n- columns... |
{"title":"How to use the new affix plugin in twitter's bootstrap 2.1.0?","tags":["css","css3","web","twitter-bootstrap","navbar"],"question_text":"The bootstrap documentation on that topic is a little confusing to me. I want to achieve similar behaviour like in the docs with the affix navbar: The navbar is below a para... |
{"title":"Replace multiple strings with multiple other strings","tags":["javascript","replace"],"question_text":"I'm trying to replace multiple words in a string with multiple other words. The string is \"I have a cat, a dog, and a goat.\"\nHowever, this does not produce \"I have a dog, a goat, and a cat\", but instead... |
{"title":"Get all Attributes from a HTML element with Javascript\/jQuery","tags":["javascript","jquery","attributes","parsing"],"question_text":"I want to put all attributes in a Html element into an array:\nlike i have a jQuery Object, whichs html looks like this:\n`<span name=\"test\" message=\"test2\"><\/span>`\nnow... |
{"title":"Determine if running on a rooted device","tags":["android","root"],"question_text":"My app has a certain piece of functionality that will only work on a device where root is available. Rather than having this feature fail when it is used (and then show an appropriate error message to the user), I'd prefer an ... |
{"title":"When do I use a dot, arrow, or double colon to refer to members of a class in C++?","tags":["c++","c++-faq"],"question_text":"Coming from other C-derived languages (like Java or C#) to C++, it is at first very confusing that C++ has three ways to refer to members of a class:\n`a::b`\n,\n`a.b`\n, and\n`a->b`\n... |
{"title":"Changing the child element's CSS when the parent is hovered with jQuery","tags":["jquery","css","jquery-selectors","parent"],"question_text":"First of all, I'm assuming this is too complex for CSS3, but if there's a solution in there somewhere, I'd love to go with that instead.\nThe html is pretty straightfor... |
{"title":"What's the difference between VARCHAR and CHAR?","tags":["sql","mysql"],"question_text":"What's the difference between VARCHAR and CHAR in MySQL?\nI am trying to store MD5 hashes.","answer_text":"VARCHAR is variable-length.\nCHAR is fixed length.\nIf your content is a fixed size, you'll get better performance... |
{"title":"How to write a caption under an image?","tags":["html","css","html5"],"question_text":"I have two images that need to kept inline; I want to write a caption under each image.\n`<center>\n <a href=\"http:\/\/example.com\/hello\">\n <img src=\"hello.png\" width=\"100px\" height=\"100px\">\n <\/a>\n ... |
{"title":"Scala: What is the difference between Traversable and Iterable traits in Scala collections?","tags":["scala","scala-collections"],"question_text":"I have looked at\nthis question\nbut still don't understand the difference between Iterable and Traversable traits. Can someone explain ?","answer_text":"Think of ... |
{"title":"How do I find the location of the executable in C?","tags":["c++","c","linux","unix","path"],"question_text":"Is there a way in C\/C++ to find the location (full path) of the current executed program?\n(The problem with\n`argv[0]`\nis that it does not give the full path.)","answer_text":"To summarize:\nOn Uni... |
{"title":"Unresolved specs during Gem::Specification.reset:","tags":["ruby","rubygems","gem","guard"],"question_text":"When launching Guard, I'm getting this output:\n`$ guard\nWARN: Unresolved specs during Gem::Specification.reset:\n lumberjack (>= 1.0.2)\n ffi (>= 0.5.0)\nWARN: Clearing out unresolved specs.\nPlease ... |
{"title":"Git diff says subproject is dirty","tags":["git","git-submodules"],"question_text":"I have just run a git diff, and I am getting the following output for all of my approx 10 submodules\n`diff --git a\/.vim\/bundle\/bufexplorer b\/.vim\/bundle\/bufexplorer\n--- a\/.vim\/bundle\/bufexplorer\n+++ b\/.vim\/bundle... |
{"title":"Add Variables to Tuple","tags":["python","tuples"],"question_text":"I am learning Python and creating a database connection.\nWhile trying to add to the DB, I am thinking of creating tuples out of information and then add them to the DB.\nWhat I am Doing\n:\nI am taking information from the user and store it ... |
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