コレクションをリセットし、モデルの新しい配列を入力するか、コレクション全体を空にします。
collection.reset(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">
//The 'C_Name' is a model name and includes default value
var C_Name = Backbone.Model.extend ({
defaults: {
country: "sachin"
}
});
//'PlayersCollection' is an instance of collection and model 'C_Name' is specified by using
//model property
var PlayersCollection = Backbone.Collection.extend ({
model: C_Name
});
//The 'country1' and 'country2' are the instances of the model 'C_name'
var country1 = new C_Name({country: "australia"});
var country2 = new C_Name({country: "england"});
//Add the model instances to the collection using 'mycollection' collection instance
var mycollection = new PlayersCollection();
mycollection.add([country1,country2]);
//The 'length' property defines length of the collection
document.write('Number of added countries: ' + mycollection.length);
document.write("<br>");
//Here, the reset() method resets the collection otherwise empties the collection
mycollection.reset();
document.write('Number of countries after reset: ' + 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-
