BackboneJS - Collection Parse


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Description

It returns the collection's data by passing through the response object and represents the data in JSON format.

Syntax

collection.parse(response, options)

Parameters

  • response − It returns the array of model attributes to the collection.

  • options − It includes true as an option which represents data in the JSON format.

Example

<!DOCTYPE html>
<html>
   <head>
      <title>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">
             
         //'MyModel' is a model name and  extended using the Backbone.Model class
         var MyModel = Backbone.Model.extend();

         // The variable 'myData' contains the values which are need to be parsed in the collection
         var myData = {
            "values": [{
               "fname": "Sachin",
               "lname": "Tendulkar",
               "country": "India"
            }]
         };

         //'MyCollection' is a collection name
         var MyCollection = Backbone.Collection.extend ({
            model: MyModel,   //The model 'MyModel' is specified by overriding the 'model' property
            parse : function(response, options) {
               document.write(JSON.stringify(response));
            }
         });

         //The collection instance 'myCollection' extracts the values of 'myData'only if parse is set to true
         var mycollection = new MyCollection(myData, { parse: true });
      </script>
      
   </body>
</html>

Output

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

  • Save the above code in the parse.htm file.

  • Open this HTML file in a browser.

backbonejs_collection.htm
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