export function randomNum(
  min?: number | undefined,
  max?: number | undefined,
  add?: number | undefined
): number {
  min = min ?? 0;
  max = max ?? 10;
  add = add ?? 1;

  let s = [min, max].sort((a, b) => {
    return a - b;
  });

  return add + s[0] + Math.floor(Math.random() * (s[1] - s[0]));
}