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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
var person = function (name) {
this.name = name;
};
person.prototype.getName = function() {
return this.name;
};
var student = new person(‘jerome‘);
console.log(student); // person { name: ‘jerome‘ }
console.log(student.prototype); //undefined, 对象原型没有prototype
console.log(student.__proto__); // person {}
console.log(person); // function person(name)
console.log(person.prototype); // person {}
console.log(person.__proto__); // function Empty()
console.log(person.prototype.prototype); // undefined
console.log(person.prototype.__proto__); // Object {}
console.log(Object.prototype); // Object {}
console.log(Object.__proto__); // function Empty()
console.log(Function.prototype); // function Empty()
console.log(Function.__proto__); // function Empty()
console.log(Object.prototype.prototype); // undefined
console.log(Object.prototype.__proto__); // null
console.log(Function.prototype.prototype); //undefined
console.log(Function.prototype.__proto__); // Object {}
// 结论：
// student.__proto__ = person.prototype
// person.prototype.__proto__ = Object.prototype
// Object.prototype.__proto__ = null
</script>
</body>
</html>
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原文地址：http://www.cnblogs.com/linji/p/4727894.html
