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20 lines
671 B
TypeScript
20 lines
671 B
TypeScript
// A hook soon to be added to the React core library:
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// https://github.com/reactjs/rfcs/blob/useevent/text/0000-useevent.md
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// TODO: Once React adds this hook, use it instead.
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import {useCallback, useRef} from 'react'
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import {useSafeLayoutEffect} from './use-safe-layout-effect'
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type AnyFunction = (...args: any[]) => any
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export function useEvent<T extends AnyFunction>(callback?: T) {
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const ref = useRef<AnyFunction | undefined>(() => {
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throw new Error('Cannot call an event handler while rendering.')
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})
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useSafeLayoutEffect(() => {
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ref.current = callback
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})
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return useCallback<AnyFunction>((...args) => ref.current?.apply(null, args), []) as T
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}
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