它用于一個(gè)模型或模型數(shù)組添加到集合。
collection.add(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); </script> </body> </html>
讓我們進(jìn)行以下步驟來看看上面的代碼工作:
保存上述代碼到文件add.html
在瀏覽器打開這個(gè)HTML文件。