// https://github.com/tc39/proposal-integer-and-modulus-math
export function modulo(n: number, m: number) {
	return ((n % m) + m) % m
}

// https://github.com/tc39/proposal-math-clamp
export function clamp(n: number, min: number, max: number) {
	return Math.min(Math.max(n, min), max)
}

// basically `Number#toFixed` but returning a number instead of a string
type Strategy = 'round' | 'floor' | 'ceil' | 'trunc' 
export function roundTo(n: number, digits: number, strategy: Strategy = 'round') {
	const factor = 10 ** digits
	return Math[strategy](n * factor) / factor
}

// https://github.com/tc39/proposal-math-sum
// (naive implementation, just for example)
// (the proposal version, which is more strictly correct, is stage 3 with two implementations, so probably not worth adding this one)
export function sum(...values: number[]) {
	return values.reduce((a, b) => a + b, 0)
}