21 lines
624 B
TypeScript
21 lines
624 B
TypeScript
import { useRef, useUnmountCleanup } from '../lib/teact/teact';
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import usePreviousDeprecated from './usePreviousDeprecated';
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export default function useSyncEffect<const T extends readonly any[]>(
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effect: (args: T | readonly []) => NoneToVoidFunction | void,
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dependencies: T,
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) {
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const prevDeps = usePreviousDeprecated<T>(dependencies);
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const cleanupRef = useRef<NoneToVoidFunction>();
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if (!prevDeps || dependencies.some((d, i) => d !== prevDeps[i])) {
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cleanupRef.current?.();
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cleanupRef.current = effect(prevDeps || []) ?? undefined;
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}
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useUnmountCleanup(() => {
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cleanupRef.current?.();
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});
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}
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