๋ชฉ๋กuseState (1)

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[React] useState vs useRef vs Variable

useState vs useRef vs Variable useState ์˜ state ๊ทธ๋ฆฌ๊ณ  useRef ์˜ ref ์™€ ๋ฆฌ์•กํŠธ ๋‚ด๋ถ€์˜ ๋ณ€์ˆ˜๊ฐ€ ๋ Œ๋”๋ง์— ๋”ฐ๋ผ ์–ด๋–ค ์‹์œผ๋กœ ๋ณ€ํ™”ํ• ๊นŒ ์„ธ ๊ฐ€์ง€ ๋ฒ„ํŠผ์œผ๋กœ ๊ฐ๊ฐ state/ ref / var ๊ฐ’์„ ์˜ฌ๋ฆฌ๋Š” ์ปดํฌ๋„ŒํŠธ๋ฅผ ๊ตฌ์„ฑ ๊ฐ’์˜ ๋ณ€ํ™” ์—†์ด ์ปดํฌ๋„ŒํŠธ ๋ฆฌ๋ Œ๋”๋ง์„ ์œ„ํ•ด์„œ ํ•˜๋‚˜์˜ ๋ฒ„ํŠผ์„ ๋” ๋งŒ๋“ฆ → ๊ฐ ๋ฒ„ํŠผ์„ ํด๋ฆญํ•˜๋ฉด์„œ ํ•ด๋‹น ๊ฐ’์˜ ๋ณ€ํ™” ๊ด€์ฐฐ import { useRef, useState } from "react"; const Comparing = () => { const [countState, setState] = useState(0); const [render, setRender] = useState(0); const countRef = useRef(0); let count..
Client/React 2022. 9. 30. 18:37
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