EventEmitter example

events-example.js

var events = new EventEmitter();

var UserView = function(el, user) {
  this.el = el;
  this.user = user;

  // Let's listen for someone emitting the event 'user:showImage', which
  // we listen for and then show the user's image.
  // The first parameter is the event name, the second is the function
  // to call when the event is triggered, and the third is the context
  // the function is called with.
  events.addListener('user:showImage', this.showImage, this);

  // We can also emit events. Let's tell listeners that we have created
  // a user view.
  events.emit('user:created');
}