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BackboneJS - Collection Set
Description
It is used to update the collection with a set of items in a model. If any new model is found, the items will be added to that model.
Syntax
collection.set(models,options)
Parameters
models − It includes an instance of the collection along with the values to be set in the collection.
options − It includes parameters such as id, name, etc., to set the values in the collection.
<!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"> //Here the model name is 'Player' and contains default value var Player = Backbone.Model.extend ({ defaults: { name: 'sachin' }, }); //'PlayersCollection' is an instance of collection var PlayersCollection = Backbone.Collection.extend ({ model: Player //model 'Player' is specified by using model property }); //'player1' is instance of the model var player1 = new Player({ name: "dhoni" }); //'mycollection' is instance of the collection var mycollection = new PlayersCollection(); //adding model instance 'player1' along with value to the collection mycollection.add(player1); //The set() method update the 'player1' model by passing this value in the collection mycollection.set([player1, { name: "raina" }]); document.write(JSON.stringify(mycollection.toJSON())); </script> </body> </html>
Output
Let us carry out the following steps to see how the above code works −
Save the above code in the set.htm file.
Open this HTML file in a browser.
backbonejs_collection.htm
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