生命不息 Coding不止

摘要： //借用构造函数(constructor stealing),有时候也叫伪造对象或者经典继承//弊端：原型方法不可复用，只有构造函数的属性可以复用function SuperType() { this.colors = ["red", "blue"];}function SubType() { SuperType.call(this); //SuperType.apply(this);}var instance1 = new SubType();instance1.colors.push("black");console.log(in 阅读全文

摘要： function SuperType() { this.property = true;}SuperType.prototype.getSuperValue = function () { return this.property;}function SubType() { this.subproperty = false;}//继承了SuperTypeSubType.prototype = new SuperType();SubType.prototype.getSubValue = function () { return this. subproperty;}va... 阅读全文