js 相关问题求解惑

推荐关注

› Meteor

› JSLint - a JavaScript code quality tool

› jsFiddle

› D3.js

› WebStorm

推荐书目

› JavaScript 权威指南第 5 版

› Closure: The Definitive Guide

This topic created in 2996 days ago, the information mentioned may be changed or developed.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool 教程(w3cschool.cn)</title>
</head>
<body>
<script>
function person(firstname,lastname,age,eyecolor){
    this.firstname=firstname;
    this.lastname=lastname;
    this.age=age;
    this.eyecolor=eyecolor;
    this.changeName=changeName;
	function changeName(name){
		this.lastname=name;
	}
}
myMother=new person("Sally","Rally",48,"green");
myMother.changeName("Doe");
document.write(myMother.lastname);
</script>

</body>
</html>

请问上面的代码为什么删除this.changeName=changeName;就会报错？

提示Uncaught TypeError: myMother.changeName is not a function

3 replies