Explain how to trigger and listen Events in Marionette.js ?

The events can be triggered using Marionette.trigger method. It can also be used to do additional processing of your application. There are two events that are triggered. They are, Before start - It is fired before your application is started and before the initializer is executed. Start - It is fired after the application starts and after the initializer is executed.

Example

MyApp.on("before:start", function(options){
  options.moreData = "Event firing in Marionette"
});

MyApp.on("start", function(options){
  if (Backbone.history){
    Backbone.history.start();
  }
});