타닥타닥 개발자의 일상

실행문 npx react-native init sample21 --template react-native-template-typescript App.tsx import React, { useEffect, useState } from "react"; import { StyleSheet, Text, View } from "react-native"; export default function App(){ return( ) } const Clock =() =>{ const [date, setDate] = useState(()=> new Date()) useEffect(()=>{ const timeId = setInterval(()=>tick(),1000) console.log('setInteval') retur..