发布于 2015-08-14 15:15:23 | 328 次阅读 | 评论: 0 | 来源: 网络整理
用来从集合中删除一个模型或模型数组。
collection.remove(models,options)
<!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">
//'Player' is a model and contain defualt value for model
var Player = Backbone.Model.extend({
defaults: {
name: "sachin",
country:"india"
}
});
//The 'PlayersCollection' is a collection instance and model 'Player' is specified by overriding the 'model' property
var PlayersCollection = Backbone.Collection.extend({
model: Player
});
//The instances "player1" and "player2" are created for the model "Player"
var player1 = new Player({name: "dhoni", country:"india"});
var player2 = new Player({name: "raina", country:"india"});
//The add() method adds the models 'player1' and 'player2' to the collection instance 'mycollection'
var mycollection = new PlayersCollection();
mycollection.add([player1,player2]);
//The 'length' property deteremines length of the collection
document.write('Number of added players : ' + mycollection.length);
document.write("<br>");
//The remove() method removes the 'player1' model from the collection
mycollection.remove([player1]);
document.write('Number of removed players : ' + mycollection.length);
</script>
</body>
</html>
让我们进行以下步骤来看看上面的代码工作：
保存上述代码到文件remove.html
在浏览器打开这个HTML文件。