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react-dom-resize-observer
Advanced tools
Hook to provide a performant mechanism by which code can monitor an element for changes to its size, with notifications being delivered to the observer each time the size changes.
Readme
Hook to provide a performant mechanism by which code can monitor an element for changes to its size, with notifications being delivered to the observer each time the size changes.
$ npm install react-dom-resize-observer
export function App() {
// Pass a callback to be fired on resize event.
// Wrap in `useCallback` or in module scope for referential stability.
const onResize = useCallback((entry: ResizeObserverEntry & { target: HTMLDivElement }) => {
if (entry === null) return
// Do something with the entry...
}, [])
/*
* Pass the element type you're going to attach the observer to. In this case, `HTMLDivElement`.
* This generic type parameter helps infer the correct typing for `onResize` and `observer`.
*/
const {
// New dimensions when resize is observed.
entry,
// Callback to pass as a ref to give this hook access to the DOM element.
observer,
// Callback to disconnect observing completely.
disconnect
// `onResize` can be used to get access to the raw DOM element when resizing occurs.
// Can be used to perform some imperative updates or other logic on element resize event.
} = useResizeObserver<HTMLDivElement>(onResize)
return (
// Attach the observer as a ref to the DOM.
<div ref={observer} onClick={disconnect}>
App
</div>
)
}
FAQs
React hook implementing the Resize Observer API.
We found that react-dom-resize-observer demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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