Answers for "react stopwatch clearinterval + useEffect"

Javascript

3

clearinterval in useEffect

let intervalID;
useEffect(() => {
    if (isRunning) {
      intervalID = setInterval(() => {
        dispatch({ type: "tic-toc" });
      }, 1000);
    }
      return () => clearInterval(intervalID);
  }, [isRunning]);

Posted by: Guest on May-30-2021

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