masteringModule/node_modules/object-inspect/example/all.js

'use strict';

var inspect = require('../');
var Buffer = require('safer-buffer').Buffer;

var holes = ['a', 'b'];
holes[4] = 'e';
holes[6] = 'g';

var obj = {
    a: 1,
    b: [3, 4, undefined, null],
    c: undefined,
    d: null,
    e: {
        regex: /^x/i,
        buf: Buffer.from('abc'),
        holes: holes
    },
    now: new Date()
};
obj.self = obj;
console.log(inspect(obj));