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usestate.tscommit a3f9c21
12class Counter extends React.Component {
13- this.state = { count: 0 }
14- this.setState({ count: count + 1 })
13+ const [count, setCount] = useState(0)
14+ setCount(count + 1)
15}
why: class state meant logic tied to a lifecycle you didn't choose. hooks let state live in a function, so you could reuse it without wrapping everything in a class.
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