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

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

import { useRef, useEffect } from "react";

var useIsMountedRef = function useIsMountedRef() {
  var isMountedRef = useRef(null);
  useEffect(function () {
    isMountedRef.current = true;
    return function () {
      isMountedRef.current = false;
    };
  });
  return isMountedRef;
};

export default useIsMountedRef;