use-cd

'use client'import { useEffect, useRef, useState } from 'react'const useCD = (interval = 1000, onCD?: (cd: number) => void) => {  const [timestamp, setTimestamp] = useState(() => Date.now())  const onCDRef = useRef(onCD)  useEffect(() => {    onCDRef.current = onCD  })  useEffect(() => {    const id = setInterval(() => {      const now = Date.now()      setTimestamp(now)      onCDRef.current?.(now)    }, interval)    return () => clearInterval(id)  }, [interval])  return timestamp}export default useCD

'use client'import useCD from "."export default function (){    const value = useCD()    return <div>timestamp: {value}</div>}