srcminiBackbone.js集合克隆方法返回具有相同模型列表的集合的新实例。
句法：
collection.clone()让我们以一个示例来演示克隆方法。
请参阅以下示例：
<!DOCTYPE html>
<head>
<title> Clone 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: 'Chris Martin'
});
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'));
//Use a variable 'details' to assign the value for 'name' as 'John Davison'
details.name="John Davison";
document.write("The new instance of collection is: ", JSON.stringify(details.name));
</script>
</body>
</html>输出：
将以上代码保存在clone.html文件中，然后在新的浏览器中打开此文件。
评论前必须登录！
注册