import { useState, useEffect } from "react"; const TIMER = 30; const useTimer = (initialValue: number = TIMER) => { const [timer, setTimer] = useState(initialValue); useEffect(() => { const interval = setInterval(() => { setTimer((prev) => prev - 1); }, 1000); return () => clearInterval(interval); }, []); return { timer, setTimer }; }; export default useTimer;