BackboneJS - Utility Backbone.$

Description

It allows the Backbone to use an object as the DOM library.

Syntax

Backbone.$ = $;

Example

Live Demo

<!DOCTYPE html>
<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>
   </head>
   
   <body>
      <script>
         //The value specified for the variable '$' in the global scope
         var $ = {version:'0.1.1',name:'Tutorialspoint'};
      </script>
      
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
         type = "text/javascript"></script>
      
      <script type = "text/javascript">
         //Set the value for the variable after Backbone is loaded
         Backbone.$ = {version:'1.1.2',name:'Tutorialspoint'};

         //It displays the defined values in the JSON format
         document.write("The values after loading Backbone are: "
            ,JSON.stringify(Backbone.$));
      </script>
      
   </body>
</html>

Output

Let us carry out the following steps to see how the above code works −

Save the above code in the backbone-dollar.htm file.
Open this HTML file in a browser.

backbonejs_utility.htm