not me
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| me |
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| const emojis = { | |
| "Gesture": [ | |
| { | |
| "name": "+1,thumbsup", | |
| "char": "👍" | |
| }, | |
| { | |
| "name": "-1,thumbsdown", | |
| "char": "👎" |
anig1scur
/ stop-watch.js
Created
December 6, 2023 05:17
two stopwatches using useRef and useState,, what's the difference?
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| function Stopwatch1() { | |
| const timerIdRef = useRef(0); | |
| const [count, setCount] = useState(0); | |
| const startHandler = () => { | |
| if (timerIdRef.current) { | |
| return; | |
| } | |
| timerIdRef.current = setInterval(() => setCount((c) => c + 1), 1000); | |
| }; |