Jacob Silver jacobsilver2

btoo / usePrevious.ts

Last active April 27, 2025 07:13

typescript type-safe version of usePrevious taken directly from the react docs https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state

	import { useRef, useEffect } from 'react';

	/**
	* a type-safe version of the `usePrevious` hook described here:
	* @see {@link https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state}
	*/
	export function usePrevious<T>(
	value: T,
	): ReturnType<typeof useRef<T>>['current'] {
	const ref = useRef<T>();