react-use/docs/useMeasure.md
2019-10-12 21:03:35 +11:00

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# `useMeasure`
React sensor hook that tracks dimensions of an HTML element using the [Resize Observer API](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver).
## Usage
```jsx
import { useMeasure } from "react-use";
const Demo = () => {
const [ref, { x, y, width, height, top, right, bottom, left }] = useMeasure();
return (
<div ref={ref}>
<div>x: {x}</div>
<div>y: {y}</div>
<div>width: {width}</div>
<div>height: {height}</div>
<div>top: {top}</div>
<div>right: {right}</div>
<div>bottom: {bottom}</div>
<div>left: {left}</div>
</div>
);
};
```
## Related hooks
- [useSize](./useSize.md)