import React from 'react' export const useUpdatedEffect = ( effect: React.EffectCallback, dependencies: React.DependencyList ) => { const isFirstRender = useRef(true) useEffect(() => { if (isFirstRender.current) { isFirstRender.current = false } else { effect() } }, dependencies) } export const usePrevious = (value: T): T | undefined => { const ref = useRef() useEffect(() => { ref.current = value }) return ref.current }