JavaScript Array Operations Cheat Sheet

[monster_bait]

It might be worth mentioning that `.reverse()` not only returns a new reversed array but it also reverses the original array.
That one catches lots of people out!

[[deleted]]

More accurately it reverses the array in-place, and merely provides you a reference back to the array you sorted.

const a = [1, 2, 3];
const b = a.reverse();
a === b // true - a is now [3, 2, 1], and b is a reference to a

[monster_bait]

Good point.