コレクションにモデルまたはモデルの配列を追加するために使用されます。
collection.add(models,options)<!DOCTYPE html>
<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);
</script>
</body>
</html>上記のコードがどのように機能するかを確認するために、次の手順を実行してみましょう-
