function inheritPrototype(subType, superType){  var prototype = Object.create(superType.prototype); //創建超類型原型副本  prototype.constructor = subType;          //修改原型副本的不同屬性  subType.prototype = prototype;           //指定原型}function SuperType(name){  this.name = name;  this.colors = ["red", "blue", "green"];}SuperType.prototype.sayName = function(){  console.log(this.name);}function SubType(name, age){  //繼承屬性  SuperType.call(this, name);  //實例屬性  this.age = age;}//繼承方法inheritPrototype(SubType, SuperType);SubType.prototype.sayAge = function(){  console.log(this.age);};var instance1 = new SubType("Nicholas", 29);instance1.colors.push("black");console.log(instance1.colors); //"red, blue, green, black"instance1.sayName();      //"Nicholas"instance1.sayAge();      //29