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Backbone.js collection.sort()用法及代码示例

在 Backbone.js 中, sort 集合方法用于对集合中的项目进行排序。它与比较器属性一起使用以对项目进行排序。

用法:

collection.sort(options)

参数说明:

options:它指定两个参数 "true" 或 "false" 来启用或禁用排序。

让我们举个例子来部署排序收集方法。

看这个例子:

<!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>

输出:

将上述代码保存在 sort.html 文件中,然后在新浏览器中打开此文件。

BackboneJS Sort Collection



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