BackboneJS - 集合提取

說明

使用 sync 方法從集合模型中提取資料。

語法

collection.fetch(options)

引數

options − 它需要 success 和 error 回撥，這兩個都作為引數傳遞。

示例

現場演示

<!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">
         
         //The sync() method represents state of a model
         Backbone.sync = function(method, model) {

            //The 'method' gives 'read' state of the model by representing data in JSON format
            document.write("The fetched details are: ",method + ": " + JSON.stringify(model));
         };

         //The collection instance 'details' contains the values which are to be fetched in the collection
         var details = new Backbone.Collection ({
            Name:"Sachin Tendulkar",
            Country:"India"
         });   

         //This will display the model state by delegating the 'sync()' method
         details.fetch();
      </script>
      
   </body>
</html>

輸出

讓我們執行以下步驟來了解上述程式碼如何工作 −

將上述程式碼儲存到 fetch.htm 檔案。
在瀏覽器中開啟此 HTML 檔案。

backbonejs_collection.htm

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