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              <script src="http://cdn.extendjs.org/0.2.3/extend.min.js"></script>
              var MyClass = Class.extend(function(){
    //This is a private method.
    function privateMethod(){
        console.log("Private method executed")
    //this is a public method.
    this.publicMethod = function(){
        console.log("Public method executed")
    this.constructor = function(){
        //Private methods accessed inside the class instances.
//Public variables can be accessed as properties on class instances.
var instance = new MyClass()
//=> "Private method executed"
//=> "Public method executed"
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