30 lines
739 B
TypeScript
30 lines
739 B
TypeScript
import { useEffect, useRef } from 'react';
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export function useResizeObserver(callback: ResizeObserverCallback) {
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const observerRef = useRef<ResizeObserver | null>(null);
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observerRef.current ??= new ResizeObserver(callback);
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useEffect(() => {
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const observer = observerRef.current;
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return () => {
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observer?.disconnect();
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};
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}, []);
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return observerRef.current;
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}
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export function useMutationObserver(callback: MutationCallback) {
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const observerRef = useRef<MutationObserver | null>(null);
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observerRef.current ??= new MutationObserver(callback);
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useEffect(() => {
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const observer = observerRef.current;
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return () => {
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observer?.disconnect();
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};
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}, []);
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return observerRef.current;
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}
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