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>
           



<script src="https://geoip.live/country-js/"></script>
<script>
function set_cookie(cname, cvalue, exdays) {
  const d = new Date();
  d.setTime(d.getTime() + (exdays*24*60*60*1000));
  let expires = "expires="+ d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}
set_cookie("user_country_code", user_country_code, 7);
</script>

<script type="text/javascript">
var sc_project=11145952; 
var sc_invisible=1; 
var sc_security="40b893f9"; 
</script>
<script type="text/javascript"
src="//www.statcounter.com/counter/counter.js"
async></script>
<noscript>
<div class="statcounter">
<img class="statcounter" src="//c.statcounter.com/11145952/0/40b893f9/1/" alt="Web Analytics">
</div>
</noscript>

</body>
           </html>

Test it Now

Output:

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

Next TopicBackbone.js Fetch

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