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useState lets you add local state to function components. Returns [value, setter]. Re-renders on update.
const [count, setCount] = useState(0)
<button onClick={() => setCount(count + 1)}>A) On variable change • B) On state change ✓ • C) Every second
Use useState to store items. Add on form submit, remove on click. Bonus: persist to localStorage.
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Adds local state to function components. Returns [value, setter]. Re-renders on update.
const [count, setCount] = useState(0)
A) Always • B) On state change ✓ • C) Never
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