Created
August 21, 2020 10:21
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useDebouce Custom Hook
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import { useState, useEffect } from "react"; | |
export const useDebounce = (value: any, delay: number) => { | |
// State and setters for debounced value | |
const [debouncedValue, setDebouncedValue] = useState(value); | |
useEffect( | |
() => { | |
// Update debounced value after delay | |
const handler = setTimeout(() => { | |
setDebouncedValue(value); | |
}, delay); | |
// Cancel the timeout if value changes (also on delay change or unmount) | |
// This is how we prevent debounced value from updating if value is changed ... | |
// .. within the delay period. Timeout gets cleared and restarted. | |
return () => { | |
clearTimeout(handler); | |
}; | |
}, | |
[value, delay] // Only re-call effect if value or delay changes | |
); | |
return debouncedValue; | |
}; |
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