Alex1990

var stack1 = [];
var stack2 = [];

function isEmptyStack(stack) {
  return stack.length === 0;
}

function enqueue(obj) {
  return stack1.push(obj);
}

Alex1990

/**
 * A cross-browser custom event module.
 */

var global = window;
var NativeCustomEvent = window.CustomEvent;

function isCustomEvent() {
  try {
    var p = new NativeCustomEvent('cat', { detail: { foo: 'bar' } });

Alex1990

/**
 * A simple cross browser input event.
 */
function input(node, callback) {
  var doc = document;
  var isIE9 = doc.documentMode && (doc.documentMode === 9);
  var isInputSupported = ('oninput' in node) && !isIE9;

  var inputValue = node.value;

Alex1990

var data = ["ActionScript", "C", "C#", "C++", "Clojure", "CoffeeScript", "CSS", "Go", "Haskell", "HTML", "Java", "JavaScript", "Lua", "Matlab", "Objective-C", "Perl", "PHP", "Python", "R", "Ruby", "Scala", "Shell", "Swift", "TeX", "VimL", "ABAP", "Ada", "Agda", "AGS Script", "Alloy", "AMPL", "Ant Build System", "ANTLR", "ApacheConf", "Apex", "API Blueprint", "APL", "AppleScript", "Arc", "Arduino", "AsciiDoc", "ASP", "AspectJ", "Assembly", "ATS", "Augeas", "AutoHotkey", "AutoIt", "Awk", "Batchfile", "Befunge", "Bison", "BitBake", "BlitzBasic", "BlitzMax", "Bluespec", "Boo", "Brainfuck", "Brightscript", "Bro", "C-ObjDump", "C2hs Haskell", "Cap'n Proto", "CartoCSS", "Ceylon", "Chapel", "ChucK", "Cirru", "Clarion", "Clean", "CLIPS", "CMake", "COBOL", "ColdFusion", "ColdFusion CFC", "Common Lisp", "Component Pascal", "Cool", "Coq", "Cpp-ObjDump", "Creole", "Crystal", "Cucumber", "Cuda", "Cycript", "Cython", "D", "D-ObjDump", "Darcs Patch", "Dart", "desktop", "Diff", "DIGITAL Command Language", "DM", "Dockerfile", 

Alex1990

/**
 * Unix timestamp - The number of seconds that have elapsed since 1970-01-01 00:00:00 UTC.
 */
function timestamp() {
  return Math.round((Date.now ? Date.now() : new Date()) / 1000);
}

Alex1990

/**
 * switch vs object
 */

var dateMethods = {
  Y: 'FullYear',
  M: 'Month',
  D: 'Date',
  h: 'Hours',
  m: 'Minutes',

Alex1990

/**
 * Common regular expressions
 */
var rules = {
  alphabet: /^[a-zA-Z]+$/,
  numeric: /^[0-9]+$/,
  alphanumeric: /^[0-9a-zA-Z]+$/,
  alphadash: /^[0-9a-zA-Z_]+$/,
  ascii: /[\x00-\xff]/,
  nonascii: /[^\x00-\xff]/

Alex1990

/**
 * A simple string template function.
 *
 * For example:
 * 
 * var str = 'Hi, {{ username }}! Your age is {{ age }}. You locate in {{ location.city }}, {{ location.province }}.';
 * var user = {
 *   username: 'Alex Chao',
 *   age: 25,
 *   location: {

Alex1990

/**
 * Pick N elements from an array randomly.
 */

function randPick(arr, n) {
  var len = arr.length;
  var randIdx;
  var tmp;
  
  while (n--) {

Alex1990

/**
 * Escape regexp special characters. The slash `/` will be escaped automatically.
 * http://stackoverflow.com/questions/494035/how-do-you-pass-a-variable-to-a-regular-expression-javascript/494122#494122
 */
function escapeRegexp(str) {
  return str.replace(/[.*+?^$|[\](){}\\-]/g, '\\$&');
}