new function
阿新 • • 發佈：2017-12-18
truct this var oct con () func his obj
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<script>
// var F=function(){};
// Object.prototype.a=function(){};
// Function.prototype. b=function(){};
// var f=new F();
// f.a;
// f.b;
function Person(){}
var friend = new Person();
Person.prototype = {
constructor : Person,
name : "kayorl",
sayName : function () {console.log(this.name);}
}
friend.sayName(); //ERROR
</script>
小紅書 P156頁,可知原型修改後, 切斷了原來原形與 更改後原形的關系
</body>
</html>
new function