24 lines
547 B
JavaScript
24 lines
547 B
JavaScript
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// From https://overreacted.io/making-setinterval-declarative-with-react-hooks/
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import { useEffect, useRef } from 'react'
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export const useInterval = (callback, delay) => {
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const savedCallback = useRef()
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// Remember the latest callback.
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useEffect(() => {
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savedCallback.current = callback
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}, [callback])
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// Set up the interval.
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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 (delay !== null) {
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let id = setInterval(tick, delay)
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return () => clearInterval(id)
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}
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}, [delay])
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}
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