React로 타이머 hooks 간단히 개발하기

import React, { useRef, useState } from 'react';export const useTimer = () => { const [time, setTime] = useState(0); const [isRunning, setIsRunning] = useState(false); const intervalRef = useRef(); const startTimer = () => { if (!isRunning) { setIsRunning(true); intervalRef.current = setInterval(() => { setTime(prevTime => prevTime + 1); }, 1000); } }; const..

2024.11.18