Backbone.js View.extend()

The Backbone.js view extend method is used to extend the Backbone.js view class to create a custom view.

Syntax:

Parameter explanation:

properties: It specifies instance properties for the view class .

classProperties: It specifies classProperties attached to the view's constructor function.

Let's take an example.

See this example:

 <!DOCTYPE html>
   <head>
      <title>View Extend 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">
         var ViewDemo = Backbone.View.extend({

            initialize:function(){
               document.write('JavaTpoint is the best online tutorial website for all techologies.');
             }
         });
         var myview = new ViewDemo();
         </script>
         </body>
      </html>

Test it Now

Output:

Save the above code in viewextend.html file and open this file in a new browser.