Backbone.js model.sync()

The Backbone.js Sync Model is used to communicate with the server and represent the state of a model.

Syntax:

Parameter explanation:

method: It represents the CRUD operations i.e. create, read, update and delete.

model: It is used to save the data on the model.

options: It fires success or error message depending on the method succeeded.

Let's take an example.

See this example:

 <!DOCTYPE html>
   <head>
      <title> Sync 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 details = new Backbone.Model({
               fname: "Sachin",
               lname: "Tendulkar"
            });
            Backbone.sync = function(method, model) {
               document.write(method + ": " + model.get('fname')+ " " +model.get('lname'));
            };
           details.save();
           </script>
           </body>
           </html>

Test it Now

Output:

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