JavaScript Bits You Skipped the First Time Around

Being humans, we rarely learn things linearly. No one begins their JavaScript journey by reading the TC39 language specification line-by-line like a pedantic masochist.

let banana = "banana";
let apple = "apple";

console.log(banana);
console.log(apple);

Instead we all cobble together a good-enough understanding, leaving holes here and there to fill in later.

So far I’ve stumbled along without 100% grokking prototypical inheritance, or how call, apply, and bind work on functions.

It’s fine. Stuff mostly works. Until it doesn’t ¯_(ツ)_/¯

But at some point, it’s useful to stop stumbling about and peek back at those holes.

Tyler Clark ’s egghead course on Advanced JavaScript Foundations that was exactly that hole-filling opportunity for me.

As usual, I drew some notes…

Want more illustrated notes on web development?

Take a look at [[JavaScript’s …spread Operator]], Building Custom React Hooks or Fixing Common Git Mistakes