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45 lines
1.0 KiB
TypeScript
45 lines
1.0 KiB
TypeScript
import { useCallback, useEffect, useRef } from 'react';
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export type UseTimeoutFnReturn = [() => boolean | null, () => void, () => void];
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export function useTimeoutFn(
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// eslint-disable-next-line @typescript-eslint/ban-types
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fn: Function,
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ms = 0
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): UseTimeoutFnReturn {
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const ready = useRef<boolean | null>(false);
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const timeout = useRef<ReturnType<typeof setTimeout>>();
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const callback = useRef(fn);
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const isReady = useCallback(() => ready.current, []);
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const set = useCallback(() => {
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ready.current = false;
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timeout.current && clearTimeout(timeout.current);
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timeout.current = setTimeout(() => {
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ready.current = true;
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callback.current();
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}, ms);
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}, [ms]);
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const clear = useCallback(() => {
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ready.current = null;
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timeout.current && clearTimeout(timeout.current);
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}, []);
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// update ref when function changes
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useEffect(() => {
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callback.current = fn;
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}, [fn]);
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// set on mount, clear on unmount
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useEffect(() => {
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set();
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return clear;
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}, [ms]);
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return [isReady, clear, set];
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}
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