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# `useRafState`
React state hook that only updates state in the callback of [`requestAnimationFrame`](https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame).
## Usage
```jsx
import {useRafState, useMount} from 'react-use';
const Demo = () => {
const [state, setState] = useRafState({
width: 0,
height: 0,
});
useMount(() => {
const onResize = () => {
setState({
width: window.clientWidth,
height: window.height,
});
};
window.addEventListener('resize', onResize);
return () => {
window.removeEventListener('resize', onResize);
};
});
return <pre>{JSON.stringify(state, null, 2)}</pre>;
};
```
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