import { mo } from 'moroutine';

export const checkPrime = mo(import.meta, (n: number): boolean => {
  if (n < 2) return false;
  for (let i = 2; i * i <= n; i++) if (n % i === 0) return false;
  return true;
});

export const upper = mo(import.meta, (s: string): string => s.toUpperCase());

export const countUp = mo(import.meta, async function* (n: number) {
  for (let i = 0; i < n; i++) yield i;
});