Backbone.js collection.fetch()

The Backbone.js collection fetch method is used to fetch the default set of model in the collection using the sync method.

Syntax:

Parameter explanation:

options: It specifies "success" or "error" callbacks which will both be passed as arguments.

Let's take an example to deploy the fetch method.

See this example:

<!DOCTYPE html>
   <head>
      <title>Fetch Collection 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">
         //The sync() method represents state of a model
         Backbone.sync = function(method, model) {

            //The 'method' gives 'read' state of the model by representing data in JSON format
            document.write("The fetched details are: ",method + ": " + JSON.stringify(model));
         };

         //The collection instance 'details' contains the values which are to be fetched in the collection
         var details = new Backbone.Collection({
            Name:"Narendra Modi",
            Country:"India"
         });

         //This will display the model state by delegating the 'sync()' method
         details.fetch();
      </script>
   </body>
</html>
  

Test it Now

Output:

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