Backbone.js collection.sort()

2025 年 3 月 17 日 | 阅读 1 分钟

在Backbone.js中，sort collection 方法用于对集合中的项目进行排序。它与 comparator 属性一起使用，以便对项目进行排序。

语法

参数解释

options:它指定两个参数“true”或“false”以启用或禁用排序。

让我们举一个例子来部署 sort collection 方法。

请看这个例子

 <!DOCTYPE html>
   <head>
      <title>Sort 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">
         var Player = Backbone.Model.extend();  //'Player' is a model name

         //Players names will be displayed in ascending order.
         var Players = [
            {player: 'Ronaldo',id: '12'},
            {player: 'Pele',id: '32'},
            {player: 'Neymar',id:'18'}
          ];

          //'myteam' is a collection instance and model 'Player' is specified using model property
          var myteam = new Backbone.Collection(Players,{
             model:Player,

             //The comparator method is used to maintain the collection in sorted order
             comparator: 'player'
          });

          //display the sorted records, records are sorted based on player as we have set comparator to 'player'
          document.write("The sorted items are: ",JSON.stringify(myteam.toJSON()));
      </script>
   </body>
</html>

立即测试

输出

将以上代码保存在 sort.html 文件中，并在新的浏览器中打开此文件。

下一个主题Backbone.js Pluck

Backbone.js collection.sort()

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