When a model instance is created, the class's constructor gets called and it is invoked by defining the initialize function.
new Model(attributes, options)
attributes − Attributes define properties of a model, when creating instance of that model.
options − These are the options such as id, name, etc., used with attributes when a model is created.
<!DOCTYPE html> <html> <head> <title> Model 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"> MyModel = Backbone.Model.extend ({ initialize: function() { document.write("Welcome to TutorialsPoint.."); } }); var mymodel = new MyModel; </script> </head> <body></body> </html>
Let us carry out the following steps to see how the above code works −
Save the above code in the initialize.htm file.
Open this HTML file in a browser.