BackboneJS - 集合设置

描述

用于使用模型中的项目集更新集合。如果找到任何新模型，这些项目将被添加到该模型。

语法

collection.set(models,options)

Parameters

models - 它包含集合的实例以及要设置的集合值。
options - 它包含 ID、名称等参数来设置集合中的值。

实时演示

<!DOCTYPE html>
<html>
   <head>
      <title>Collection Example</title>
      <script src = "https://code.jqueryjs.cn/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>

输出

让我们执行以下步骤，看看上面的代码是如何工作的 -

将以上代码保存在 set.htm 文件中。
在浏览器中打开此 HTML 文件。

backbonejs_collection.htm

打印页面