BackboneJS-Utility Backbone.noConflict

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描述

它显示 Backbone 对象的原始值，并允许存储对 Backbone 的引用。

语法

var backbone=Backbone.noConflict();

示例

<!DOCTYPE html>
   <head>
      <title>Utility 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>
         //It is reference to a last parsed verison of Backbone.js
         this.Backbone = {
            "Example for Backbone utility": true
         };
      </script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.0/backbone-min.js"></script>
      <script type="text/javascript">
         //'Backbone.noConflict()' gives reference to a Backbone before last parsed version of Backbone was loaded
         var backboneParsed = Backbone.noConflict();

         //It looks for the previous version and logs 'true' on the browser
         document.write(Backbone["Example for Backbone utility"]);

         //It displays the version of the Backbone.js contained in the new 'backboneParsed' namespace
         document.write(backboneParsed.VERSION);
      </script>
   </body>
</html>

输出

让我们执行以下步骤来了解上述代码的工作原理

  • 将上述代码保存在 **backbone-noConflict.htm** 文件中

  • 在浏览器中打开此 HTML 文件。

打印页面
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