Event Driven Programming

What is event driven programming?

• Event-Driven Programming is a logical pattern that we can choose to confine our programming within to avoid issues of complexity and collision.

Event-Driven Programming makes use of the following concepts:

• An Event Handler is a callback function that will be called when an event is triggered.
• A Main Loop listens for event triggers and calls the associated event handler for that event.

Removing event listeners

• To remove an event listener, you can use the removeListener or removeAllListeners method. However, you should note that in the built in EventEmitter (within Node), you have to pass a reference to the exact function you want to remove. Ultimately, making sure that the function is accessible from that specific place in your code.

Source: https://alligator.io/nodejs/event-driven-programming/