Reading: Event Driven Applications - jacobwendt-401-advanced-javascript/cr-js-401d3 GitHub Wiki

Event Emitter

• Emitters periodically emit events that cause listener objects to be called.
• All objects that emit events are members of EventEmitter class.
• These objects expose an eventEmitter.on()
• By default, all listeners attached to a particular event object are called by the EventListener object synchronously in the order in which they are registered or attached to the event object.

Event-Driven Programming

• Logical pattern that we can choose to confine our programming within to avoid issues of complexity and collision.