d54783a324
* fix: memoize derived swap info * fix: memoize current block timestamp * fix: memoize price impact * fix: memoize debounced value updates * fix: nits
27 lines
864 B
TypeScript
27 lines
864 B
TypeScript
import { useEffect, useState } from 'react'
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/**
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* Debounces updates to a value.
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* Non-primitives *must* wrap the value in useMemo, or the value will be updated due to referential inequality.
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*/
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// modified from https://usehooks.com/useDebounce/
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export default function useDebounce<T>(value: T, delay: number): T {
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const [debouncedValue, setDebouncedValue] = useState<T>(value)
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useEffect(() => {
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// Update debounced value after delay
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const handler = setTimeout(() => {
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setDebouncedValue(value)
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}, delay)
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// Cancel the timeout if value changes (also on delay change or unmount)
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// This is how we prevent debounced value from updating if value is changed ...
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// .. within the delay period. Timeout gets cleared and restarted.
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return () => {
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clearTimeout(handler)
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}
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}, [value, delay])
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return debouncedValue
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}
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