BackboneJS collection.toJSON()方法

返回使用JSON格式集合中的每個模型的屬性哈希副本。

語法

collection.toJSON(options)

參數:

options: 包括選項集合實例，並將其轉換成JSON格式。

示例

<!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 contains defualt value for the model
         var Player = Backbone.Model.extend({
            defaults: {
               name: "sachin"
            }
         });

         //The 'PlayersCollection' is a collection instance and model 'Player' is specified by overriding the 'model' property
         var PlayersCollection = Backbone.Collection.extend({
            model: Player
         });
         $(function(){
            var mycollection = new PlayersCollection();

            //The set() method sets the values for the 'name' attribute
            mycollection.set([{name: 'sehwag'},
		                 {name: 'raina'},
		                 {name: 'dhoni'}
		             ]);
            //The JSON.stringify() method returns values of the collection in the JSON format
            document.write("The collection values are:", JSON.stringify(mycollection.toJSON()));
        });
      </script>
   </body>
</html>

輸出

讓我們進行以下步驟來看看上麵的代碼工作：

保存上述代碼在文件tojson.html
在瀏覽器打開這個HTML文件。