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Detailed analysis and answers to js prototype chain inheritance and calling parent class methods

亚连
Release: 2018-05-17 10:21:36
Original
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Below I will give you a detailed analysis and answerjsPrototype chainInheritance and calling the parent class method. I hope it will be helpful to everyone in the future.

function Rect(config){}
Rect.prototype.area = function(){
    alert("我是父方法");
}function myRect(config){
    arguments.callee.prototype.constructor.prototype.area(); //子类里调用父方法area
    arguments.callee.prototype.area();//子类里调用重载方法area}
myRect.prototype = new Rect();
myRect.prototype.area = function(){
    alert("我是重载方法");
}var rectObj = new myRect();
rectObj.constructor.prototype.area();//子类实例调用父类方法arearectObj.area();//子类实例调用子类方法area
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The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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