克隆

clone.js

//浅克隆
/*Object.prototype.clone = function (){
	var obj = {};

	for(var key in this) {
		if(this.hasOwnProperty(key)) {
			obj[key] = this[key];
		}
	}

	return obj;

}*/

//浅克隆测试
/*var a = {
	name : 'test'
};

var b = a.clone();*/


Object.prototype.clone = function (){
	var obj = {};

	for(var key in this) {
		if(this.hasOwnProperty(key)) {
			if(typeof this[key] == 'function' || typeof this[key] == 'object') {
				obj[key] = this[key].clone();
			}else {
				obj[key] = this[key];
			}
		}
	}

	return obj;
}

Array.prototype.clone = function (){
	var arr = [];

	for (var i = this.length - 1; i >= 0; i--) {
		if(typeof this[i] == 'function' || typeof this[i] == 'object') {
			arr[i] = this[i].clone();
		}else {
			arr[i] = this[i];
		}
	};

	return arr;
}

Function.prototype.clone = function (){

	var that = this;

	var newFunc = function (){
		return that.apply(this, arguments);
	}

	for (var key in this) {
		newFunc[key] = this[key];
	};

	return newFunc;
}

/*var obj = {
	name : 'hehe',
	like : ['man', 'woman'],
	display : function() {
		console.log(this.name);
	}

};

var newObj = obj.clone();

newObj.like.push('other')

console.log(newObj);
console.log(obj);*/