fetch

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小牛编辑

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2023-12-01

描述 (Description)

它使用sync方法从集合中的模型中提取数据。

语法 (Syntax)

collection.fetch(options)

参数 (Parameters)

options - 它将success和error回调，它们都将作为参数传递。

例子 (Example)

<!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>