@shopify/polaris/dist/esm/utilities/use-is-mounted-ref.js

Shopify’s product component library

import { useRef, useEffect } from 'react';

/**
 * Returns a MutatableRefObject containing a boolean value that
 * represents a components mounted status.
 * @returns MutableRefObject<boolean> The mounted status
 */

function useIsMountedRef() {
  var isMounted = useRef(false);
  useEffect(() => {
    isMounted.current = true;
    return () => {
      isMounted.current = false;
    };
  }, []);
  return isMounted;
}

export { useIsMountedRef };