React

useState Hook in React

Add state to function components with useState.

August 21, 2026 By malekimtiyajmca@gmail.com 1 min read

useState Hook in React — a practical guide to React useState with clear examples you can reuse in real projects.

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Short description

Use functional updates when next state depends on previous state.

useState

const [count, setCount] = useState(0);
<button onClick={() => setCount((c) => c + 1)}>{count}</button>;