原型链继承

 

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <script type="text/javascript">

        function Person(){}


        Person.prototype.dance = function(){};


        function Ninja(){}

        Ninja.prototype = new Person();

        var ninja = new Ninja();

        console.log(ninja instanceof Ninja);
        console.log(ninja instanceof Person);
        console.log(ninja instanceof Object);
        console.log(typeof ninja.dance == "function");
    </script>
</body>
</html>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

posted @ 2021-06-20 16:16  AngDH  阅读(27)  评论(0)    收藏  举报