refwhy.tsx

type GetCodeStatus = | 'none'
| 'PARTIALLY_AUTHENTICATED'
| 'NOT_AUTHENTICATED'
| 'BAD_PARAMS';

const getCodeStatus = useRef<GetCodeStatus>('none');

  const setGetCodeStatus = (resStatus: GetCodeStatus) => {
    getCodeStatus.current = resStatus;
  };
  
  const asyncSetGetCodeStatus = async (resStatus: GetCodeStatus) => {
    setGetCodeStatus(resStatus);
    console.log(getCodeStatus);
  };
// useRef로 만든 로컬 변수

const verifyPhoneNum = async () => {
    if (getCodeStatus === 'PARTIALLY_AUTHENTICATED') {
      console.log(state);
      console.log(code);
      console.log(signKey);
      verifyPhone({ code, state, signKey });
    } else {
      console.log(state);
      console.log(getCodeStatus);
      console.log(signKey);
      alert('핸드폰 인증 실패');
    }
  };

const handleResponse = async (res: PhoneCheckResType) => {
    await asyncSetCode(res.code);
    await asyncSetGetCodeStatus(res.status);
    await verifyPhoneNum();
    console.log(res);
  };