BackboneJS - View Extend


Advertisements

Description

It extends the Backbone.View class to create a custom view class.

Syntax

Backbone.View.extend(properties, classProperties)

Parameters

  • properties − It provides instance properties for the view class.

  • classProperties − The classProperties attached to the view's constructor function.

Example

<!DOCTYPE html>
<html>
   <head>
      <title>View 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">
         
         //'ViewDemo' is a name of the view class
         var ViewDemo = Backbone.View.extend ({

            //This function is called when the view is instantiated
            initialize:function() {
               document.write('Welcome to Tutorialspoint!!!');
            }
         });

         //'myview' is an instance of the view 'ViewDemo'
         var myview = new ViewDemo();
      </script>
      
   </body>
</html>

Output

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

  • Save the above code in the extend.htm file.

  • Open this HTML file in a browser.

backbonejs_view.htm
Advertisements