Javascript--变量内函数句柄

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>

<p>创建和使用对象方法。</p>
<p>对象方法作为一个函数定义存储在对象属性中。</p>
<p id="demo"></p>
<script>
var person = {
firstName: "John",
lastName : "Doe",
id : 5566,
fullName : function() 这个是相当于是函数的句柄
{
return this.firstName + " " + this.lastName;
}
};
document.getElementById("demo").innerHTML = person.fullName();
</script>

</body>
</html>