TODO: You should use Prettier!!!!!

!!

The 'bang bang' converts an object to a boolean value. Link.

Event Listeners

https://www.w3schools.com/js/js_htmldom_eventlistener.asp

State of JS 2020: https://2020.stateofjs.com/

DOM Event Objects: https://developer.mozilla.org/en-US/docs/Web/API/Event

Book

You Don't Know JavaScript

Types

Map

https://medium.com/better-programming/stop-using-objects-as-hash-maps-in-javascript

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map