BackboneJS - 集合設定

描述

用於使用模型中的專案集更新集合。如果找到任何新模型，這些專案將被新增到該模型。

語法

collection.set(models,options)

Parameters

models - 它包含集合的例項以及要設定的集合值。
options - 它包含 ID、名稱等引數來設定集合中的值。

即時演示

<!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">
      
         //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
         });
         
         //'player1' is instance of the model
         var player1 = new Player({ name: "dhoni" });
         
         //'mycollection' is instance of the collection
         var mycollection = new PlayersCollection();
         
         //adding model instance 'player1' along with value to the collection
         mycollection.add(player1);                    

         //The set() method update the 'player1' model by passing this value in the collection
         mycollection.set([player1, { name: "raina" }]);
         document.write(JSON.stringify(mycollection.toJSON()));
      </script>
      
   </body>
</html>

輸出

讓我們執行以下步驟，看看上面的程式碼是如何工作的 -

將以上程式碼儲存在 set.htm 檔案中。
在瀏覽器中開啟此 HTML 檔案。

backbonejs_collection.htm

列印頁面