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backbone.js集合fetch

本文概述

Backbone.js集合的获取方法用于使用sync方法获取集合中的默认模型集。

句法:

collection.fetch(options)

参数说明

选项:它指定“成功”或“错误”回调,它们都将作为参数传递。

让我们以一个示例来部署fetch方法。

请参阅以下示例:

<!DOCTYPE html>
   <head>
      <title>Fetch 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:"Narendra Modi", Country:"India"
         });

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

输出:

将上面的代码保存在fetch.html文件中,然后在新的浏览器中打开该文件。

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