import { useCallback, useEffect, useRef } from 'react'; // This code is copied from the usehooks-ts: https://usehooks-ts.com/react-hook/use-is-mounted // Replace it with the library when the Node.js version of the project will be updated at least to 16. export default function useIsMounted(): () => boolean { const isMounted = useRef(false); useEffect(() => { isMounted.current = true; return () => { isMounted.current = false; }; }, []); return useCallback(() => isMounted.current, []); }