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");...

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...

tl;dr;  I need to communicate state which several services need and originates in data bound to the scope of a controller. What would a good and 'Angular zen' way to do so?  Back story  I'm developing a single page application and after m...

Here are two watered down example files. This is currently how they work as requirejs modules. I've shimmed api.js in my require config to define the export as API. The goal is that these will stay as singletons. I'm trying to convert them to...

I'm new to javascript, and I found that I don't know an appropriate way to get an instance of the same variable repetedly. I am opening an Xml file with this:  function testXML(){ if (window.XMLHttpRequest)   {// code for IE7+, Firefox, Chrom...