BackboneJS - 集合排序

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說明

集合排序命令對集合中的項進行排序，並使用 comparator 屬性對項進行排序。

語法

collection.sort(options)

引數

選項 − 其中包含可選引數，例如 True 或 False，以停用或啟用排序。

示例

即時演示 
<!DOCTYPE html>
<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">
         var Player = Backbone.Model.extend();  //'Player' is a model name

         //The variable 'Players' contains the items which are to be displayed in the ascending order
         var Players = [
            {player: 'sachin',id: '44'},
            {player: 'ganguly',id: '22'},
            {player: 'dhoni',id:'33'}
         ];

         //'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

讓我們執行以下步驟，瞭解上述程式碼的工作原理 -

  • 將上述程式碼儲存在 sort.htm 檔案中

  • 在瀏覽器中開啟此 HTML 檔案。

backbonejs_collection.htm
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