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24 lines
679 B
TypeScript
24 lines
679 B
TypeScript
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import { useEffect, useState } from 'react';
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// This uses a ResizeObserver -- be careful to prevent infinite loops (should be stopped
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// early and print a warning). See https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver#observation_errors
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const useElementHeight = (container: HTMLElement|null) => {
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const [height, setHeight] = useState(container?.clientHeight ?? 0);
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useEffect(() => {
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if (!container) return () => {};
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const observer = new ResizeObserver(() => {
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setHeight(container.clientHeight);
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});
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observer.observe(container);
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return () => {
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observer.disconnect();
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};
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}, [container]);
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return height;
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};
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export default useElementHeight;
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