Backbone.js model.has()

The Backbone.js Has model returns true if the attribute is set to a non null or non-undefined value.

Syntax:

Parameter explanation:

attributes: It defines property of a created model.

Let's take an example.

See this example:

 <!DOCTYPE html>
   <head>
      <title> Has 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  Company = Backbone.Model.extend();
            var company=new Company();

            company.set({ Name: "SSSIT pvt. ltd.", comp_site:"www.sssit.org"});
            if(company.has('comp_site'))
            {
               document.write("The company has a site: True");
            }
            else
            {
               document.write("The company has a site: False");
            }
         </script>
   </head>
</html>

Test it Now

Output:

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