发布于 2015-08-14 15:14:57 | 125 次阅读 | 评论: 0 | 来源: 网络整理
它使用set()方法设置的属性后已更改的属性。
model.changed
<!DOCTYPE html>
<head>
<title> Model Example</title>
<script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" type="text/javascript"></script>
<script type="text/javascript">
Player = Backbone.Model.extend({
defaults: {
p_name: 'sachin',
country: 'india'
},
initialize: function () {
this.bind("change:p_name", function (model) {
var name = model.get("p_name");
var ctry = model.get("country");
});
}
});
var person = new Player();
document.write("<b>Before changing the name attribute, its value is:</b> ", person.get("p_name"));
person.set({ p_name: 'dhoni' });
document.write("<br><b>After changing the name attribute, its value is:</b> ", person.get("p_name"));
</script>
</head>
<body></body>
</html>
让我们进行以下步骤来看看上面的代码工作：
保存上述代码到文件changed.html
打开浏览器这个HTML文件。