Discussion on: Simple Countdown Timer using JavaScript

[ashad nasim]

Great Aritcle, It is good to clear the timer of the interval using
clearInterval()
Full Code To clear interval in React

  let timerCount = null;

  useEffect(() => {
    timerCount = setInterval(() => {
      _countDown();
    }, 1000);
    return () => {
      clearInterval(timerCount);
    };
  }, []);