PubSub with requirejs & backbone

pubsub_with_requirejs_backbone.js

// PubSub impl. with require.js & backbone.js 

// events.js
define(['underscore', 'backbone'], function (_, Backbone) {
    'use strict';
    var events = {};
    _.extend(events, Backbone.Events);
    return events;
});

// filea.js
define(['events'], function (events) {
    'use strict';
    events.on('my:event', function (message) {
        console.log('Received message: ', message);
    });
});

// fileb.js
define(['filea', 'events'], function (filea, events) {
    'use strict';
    events.trigger('my:event', 'My Message');
});

This works extremely well.