const playSong = () => setPlayingSong(require(`.../sound/${title}.mp3`));
useEffect(() => {
  if(playingSong) {
    const audio = new Audio(playingSong);
    dispatch({
      type: "PLAY_SONG",
      currentPlayingSong: audio
    });
    audio.play();
  }
}, [playingSong]);

signup = (userInfo) => {
    return todoAxios.post("/auth/signup", userInfo).then((response) => {
      const { user, token } = response.data;
      localStorage.setItem("token", token);
      localStorage.setItem("user", JSON.stringify(user));
if (this.state.user && Object.keys(this.state.user).length === 0) {
   this.setState({
        user,
        token,
      });
}
      return response;
    });
  };