Backbone.js collection.sort()用法及代碼示例

在 Backbone.js 中， sort 集合方法用於對集合中的項目進行排序。它與比較器屬性一起使用以對項目進行排序。

用法:

collection.sort(options)

參數說明：

options:它指定兩個參數 "true" 或 "false" 來啟用或禁用排序。

讓我們舉個例子來部署排序收集方法。

看這個例子：

<!DOCTYPE html>
   <head>
      <title>Sort 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">
         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>

輸出：

將上述代碼保存在 sort.html 文件中，然後在新瀏覽器中打開此文件。

相關用法

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