@kiwicom/orbit-components/es/hooks/useIsMounted/index.js

Orbit-components is a React component library which provides developers with the easiest possible way of building Kiwi.com’s products.

import { useCallback, useEffect, useRef } from "react";

// https://usehooks-typescript.com/react-hook/use-is-mounted
function useIsMounted() {
  const isMounted = useRef(false);
  useEffect(() => {
    isMounted.current = true;
    return () => {
      isMounted.current = false;
    };
  }, []);
  return useCallback(() => isMounted.current, []);
}
export default useIsMounted;