Javascript: The Module Pattern

modulePattern.js

// Source: http://javascriptweblog.wordpress.com/2010/12/07/namespacing-in-javascript/

var myApp = (function() {

	var id= 0;

	return {
		next: function() {
			return id++; 	
		},

		reset: function() {
			id = 0; 	
		}
	};	
})();	

window.console && console.log(
	myApp.next(),
	myApp.next(),
	myApp.reset(),
	myApp.next()
) //0, 1, undefined, 0