mretty

function App() {
  const [nickname, setNickname] = useState("");
  const [email, setEmail] = useState("");
  const [joined, setJoined] = useState(false);
  const [msg, setMsg] = useState("");
  const [messages, setMessages] = useState({});

  const chatRoom = db.ref().child('chatrooms').child('global');

  useEffect(() => {