import { useState } from "react"
import useUpdateEffect from "../../effect/useUpdateEffect"

export default function usePrevious<T>(state: T): T {
	const [curState, setCurState] = useState<T>(state)
	const [previous, setPrevious] = useState<null | T>(null)
	useUpdateEffect(() => {
		setPrevious(curState)
		setCurState(state)
	}, [state])
	return previous
}