import { useEffect, useRef } from 'react';

const useInterval = (callback, delay) => {
  const savedCallback = useRef(); // Remember the latest callback.

  useEffect(() => {
    savedCallback.current = callback;
  }, [callback]); // Set up the interval.

  useEffect(() => {
    function tick() {
      savedCallback.current();
    }

    if (delay !== null) {
      const id = setInterval(tick, delay);
      return () => clearInterval(id);
    }

    return true;
  }, [delay]);
};

export default useInterval;