react-use/docs/useSpring.md
2018-10-27 18:13:51 +02:00

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# `useSpring`
React animation hook that updates a single numeric value over time according
to spring dynamics.
## Usage
```jsx
import {useSpring} from 'react-use';
const Demo = () => {
const [target, setTarget] = (React as any).useState(50);
const value = useSpring(target);
return (
<div>
{value}
<br />
<button onClick={() => setTarget(0)}>Set 0</button>
<button onClick={() => setTarget(100)}>Set 100</button>
</div>
);
};
```
# Reference
```js
const currentValue = useSprgin(targetValue);
const currentValue = useSprgin(targetValue, tension, friction);
```