BackboneJS-Collection toJSON

Description

It returns the copy of the attributes hash of each model in the collection using JSON format.

Syntax

collection.toJSON(options)

Parameters:

  • options: These options are attached to the collection directly.

Example

<!DOCTYPE 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">
      	//'Player' is a model and contains defualt value for the model
         var Player = Backbone.Model.extend({
            defaults: {
               name: "sachin"
            }
         });

         //The 'PlayersCollection' is a collection instance and model 'Player' is specified by overriding the 'model' property
         var PlayersCollection = Backbone.Collection.extend({
            model: Player
         });
         $(function(){
            var mycollection = new PlayersCollection();

            //The set() method sets the values for the 'name' attribute
            mycollection.set([{name: 'sehwag'},
		                 {name: 'raina'},
		                 {name: 'dhoni'}
		             ]);
            //The JSON.stringify() method returns values of the collection in the JSON format
            document.write("The collection values are:", JSON.stringify(mycollection.toJSON()));
        });
      </script>
   </body>
</html>

Output

Let's carry out the following steps to see how above code works:

  • Save above code in toJSON.htm file

  • Open this HTML file in a browser.

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