21 lines
454 B
TypeScript
21 lines
454 B
TypeScript
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import { useEffect, useRef } from 'react';
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export default function useInterval(cb: Function, delayMs: number | null) {
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const savedCallback = useRef<Function>();
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useEffect(() => {
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savedCallback.current = cb;
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}, [cb]);
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useEffect(() => {
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function tick() {
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savedCallback.current();
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}
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if (delayMs !== null) {
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let timerId = setInterval(tick, delayMs);
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return () => clearInterval(timerId);
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}
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}, [delayMs]);
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}
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