supersonic/webapp/packages/supersonic-fe/src/hooks/useMounted.ts

import { useEffect, useRef } from 'react';

export const useMounted = () => {
  const mountedRef = useRef(false);
  useEffect(() => {
    mountedRef.current = true;
    return () => {
      mountedRef.current = false;
    };
  }, []);
  return () => mountedRef.current;
};