Stop overusing useEffect for derived state.
❌ Bad
const [total, setTotal] = useState(0);
useEffect(() => {
setTotal(price * qty);
}, [price, qty]);
✅ Good
const total = useMemo(() => price * qty, [price, qty]);
Less state.
Less bugs.
More predictable renders.
#ReactJS
❌ Bad
const [total, setTotal] = useState(0);
useEffect(() => {
setTotal(price * qty);
}, [price, qty]);
✅ Good
const total = useMemo(() => price * qty, [price, qty]);
Less state.
Less bugs.
More predictable renders.
#ReactJS
0
0
0
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