发布于 2015-08-14 15:20:48 | 72 次阅读 | 评论: 0 | 来源: 网络整理
返回模型列表中相同的集合的新实例。
collection.clone()
<!DOCTYPE html>
<head>
<title>Collection 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>
</head>
<body>
<script type="text/javascript">
//'Person' is a model name
var Person = Backbone.Model.extend();
//The model instance 'person' contains 'name' attribute
var person=new Person({
name: 'Sachin Tendulkar'
});
var MyCollection = Backbone.Collection.extend({
model: Person //model is override by specifying the "model" property of collection class
});
var myCollection = new MyCollection();
// The clone() method uses get method to retrieve the 'name' attribute
var details = myCollection.clone(person.get('name'));
//The variable 'details' assigns the value for 'name' as 'M.S.Dhoni'
details.name="M.S.Dhoni";
document.write("The new instance of collection is: ",JSON.stringify(details.name));
</script>
</body>
</html>
让我们进行以下步骤来看看上面的代码工作：
保存上述代码在文件clone.html
在浏览器打开这个HTML文件。