BackboneJS-Model IdAttribute

Description

It gives us the model's unique identifier which contains the name of the member of the class which will be use as id.

Syntax

model.idAttribute

Example

Live Demo

<!DOCTYPE html>
   <head>
      <title> Model 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>
         
      <script type = "text/javascript">
         var  Person = Backbone.Model.extend({
            defaults: {
               idAttribute: 'id'
            }
         });
         var person = new Person({id:5, name:"TutorialsPoint"});
         document.write("<b>Unique indentifier of Model Person is:</b> ", 
            person.idAttribute);
      </script>
   </head>
   
   <body></body>
</html>

Output

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

Save above code in idAttribute.htm file
Open this HTML file in a browser.

backbonejs_model.htm