What is the simplest/cleanest way to implement singleton pattern in JavaScript?...

I recently came across this article on how to write a singleton in Node.js. I know the documentation of require states that:     Modules are cached after the first time they are loaded. Multiple calls to require('foo') may not cause the mod...

Consider this pseudo code:  (function(window){    var options = { /*where everything goes */ };     var instance = (function(options){        for (var i in options){        if (options.hasOwnProperty(i)){          this[i] = options[i];        }...

Let's assume I have modules A, B and C in require.js. Module A export new object.  define(function() {      // constructor     function F() {         this.prop = 'some';     }      // module exports     return new F();     });   Modules B...

The script:  app = angular.module('app', [])  app.factory 'MyFactory', ->   val: 'Clark Kent'  app.controller 'MainCtrl', ($scope, MyFactory) ->   MyFactory.val = 'Waldo'   $scope.myFactory = MyFactory...

Below is an example of a very popular implementation of the JavaScript Singleton pattern:  var mySingleton = (function() {     var instance;      function init() {         function privateMethod() {             console.log("I am private");...

Let's say I am writing code at the main page level and 2 dependencies require the same instance of an object and also state that as a dependency. What is the appropriate way to go about this?  Basically what I want to do is say, "If this depe...

Given a namespaces ns used in two different files:  abc.js  ns = ns || (function () {    foo = function() { ... };     return {       abc : foo    }; }());   def.js  // is this correct? ns = ns || {}  ns.def = ns.def || (function () {    defoo = func...

I came across this rather interesting way to create a JavaScript singleton that can be instantiated with the new keyword, like var x = new SingletonClass(). I have a pretty good grasp of variable scope and closures, etc., but I'm having a hard ti...

I have something similar to this:  var a = (function () {      return {          b: 1,         c: function () {              console.log(this.b);         }     }; })();   So,  a.c(); // = 1   But if I do  b = 2; a.c.apply(this); // = 2   Is it possib...