BackboneJS - Router Initialize

BackboneJS - Router Initialize

<!DOCTYPE html>
<html>
   <head>
      <title>Router 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">

         //'Router' is a name of the router class
         var Router = Backbone.Router.extend ({

         //The 'routes' maps URLs with parameters to functions on your router
            routes: {
               '': 'myroute_1',
               'myroute_2': 'myroute_2'
            },

            //After executing the code, it will display this line
            myroute_1: function() {
               document.write("myroute one has been called.");
            },

            //When you enter the #myroute_2 at the end of url, it will display this line
            myroute_2: function() {
               document.write("myroute two has been called.");
            },
         });
         var appRouter = new Router;  //It is an instantiation of the router using the 'new' keyword

         //It start listening to the routes and manages the history for bookmarkable URL's
         Backbone.history.start();
      </script>

   </body>
</html>