JavaScript的对象深度克隆

Object.prototype.clone = function() {var newObj = {};for(var i in this) {if(typeof(this[i]) == "object" || typeof(this[i]) == "function") {newObj[i] = this[i].clone();}else {newObj[i] = this[i];}}return newObj;};Array.prototype.clone = function() {var newArray = [];for(var i = 0; i < this.length; i++) {if(typeof(this[i]) == "object" || typeof(this[i]) == "function") {newArray[i] = this[i].clone();}else {newArray[i] = this[i];}}return newArray;};Function.prototype.clone = function() {var that = this;var newFunc = function() {return that.apply(this, arguments);};for(var i in this) {newFunc[i] = this[i];}return newFunc;};function Owner(name) {this.name = name;}function Car(owner, brand) {this.owner = owner;this.brand = brand;this.drive = function() {alert(this.owner.name + "开着" + brand + "飞奔");};}var o = new Owner("Hao");var c1 = new Car(o, "Benz");c1.drive();var c2 = c1.clone();c2.owner.name = "Wang";c1.drive();