React | How to detect Page Refresh (F5)

useEffect(() => {
    window.addEventListener("beforeunload", alertUser);
    return () => {
      window.removeEventListener("beforeunload", alertUser);
    };
  }, []);
  const alertUser = (e) => {
    e.preventDefault();
    e.returnValue = "";
  };

https://stackoverflow.com/questions/50026028/react-how-to-detect-page-refresh-f5