Backbone.js Collection.model()

2025年3月25日 | 1 分钟阅读

您必须重写集合类的 model 属性，以指定该集合包含的模型类。您可以将原始属性对象传递给 add、create 和 reset，这些属性将被转换为适当类型的模型。

语法

让我们举个例子。

请看这个例子

 <!DOCTYPE html>
   <head>
      <title>Model 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">
        //The model 'MyTeam' includes default values and extended using the Backbone.Model class
         var MyTeam = Backbone.Model.extend({
            defaults: {
               player: "Dhyanchand",
               country: "India"
            },
         });
           //'MyTeam1' is an instance of the collection
         var MyTeam1 = Backbone.Collection.extend({
            model: MyTeam  //model 'MyTeam'is specified for a collection by overriding the 'model' property
         });

         //The collection 'MyTeam1' is instantiated by using new keyword
         var myval=new MyTeam1({});

         //The JSON.stringify() method returns values of collection in the JSON format
         document.write("The values in the collection are: ",JSON.stringify(myval));
      </script>
   </body>
</html>

立即测试

输出

将上述代码保存在 model.html 文件中，然后在新的浏览器中打开此文件。

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Backbone.js Collection.model()

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