learn javascript

javascript:learn

var Class = function  () {
	var klass = function  () {
		 this.initialize.apply(this,arguments)  //this中没有init，找原型
	};
	 klass.fn = klass.prototype;//todo  污染
	return klass;
};



var Model = new Class();  //定义类
Model.fn.initialize = function  () {
	this.save = function  () {};
};//定义构造函数
var todo = new Model();
console.log(typeof todo.save);