本文概述
骨架.js集合设置方法使用模型中的一组项目执行集合的智能更新。如果列表中没有模型,则将其添加;否则,将添加模型。如果模型已经在集合中,则其属性将被合并。
句法:
collection.set(models, options)
参数说明
模型:它指定集合的实例以及将在集合中设置的值。
options:它包含诸如id,name等参数,用于设置集合中的值。
让我们举个例子。
请参阅以下示例:
<!DOCTYPE html>
<head>
<title>Set 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">
//Here the model name is 'Player' and contains default value
var Player = Backbone.Model.extend({
defaults: {
name: 'Sachin'
}, });
//'PlayersCollection' is an instance of collection
var PlayersCollection = Backbone.Collection.extend({
model: Player //model 'Player' is specified by using model property
});
var player1 = new Player({ name: "Dravid" }); //'player1' is instance of the model
var mycollection = new PlayersCollection(); //'mycollection' is instance of the collection
mycollection.add(player1); //adding model instance 'player1' along with value to the collection
//The set() method update the 'player1' model by passing this value in the collection
mycollection.set([player1, { name: "Ganguly" }]);
document.write(JSON.stringify(mycollection.toJSON()));
</script>
</body>
</html>
输出:
将以上代码保存在set.html文件中,然后在新的浏览器中打开此文件。
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