Answer by V. Rubinetti for JavaScript % (modulo) gives a negative result for negative numbers

For fun, here's a "wrap" function that works sorta like a modulo, except you can also specify the minimum value of the range (instead of it being 0):

const wrap = (value = 0, min = 0, max = 10) =>  ((((value - min) % (max - min)) + (max - min)) % (max - min)) + min;

Basically just takes the true modulo formula, offsets it such that min ends up at 0, then adds min back in after.

Useful if you have a value that you want to keep between two values.