const { useState } = React;

function signupUser() {
  return new Promise(resolve => {
    setTimeout(resolve, 1000);
  });
}

const initialState = {
  username: "",
  email: "",
  password: "",
  passwordConfirmation: ""
};

const Signup = () => {
  const [
    { username, email, password, passwordConfirmation },
    setState
  ] = useState(initialState);

  const clearState = () => {
    setState({ ...initialState });
  };

  const onChange = e => {
    const { name, value } = e.target;
    setState(prevState => ({ ...prevState, [name]: value }));
  };

  const handleSubmit = e => {
    e.preventDefault();
    signupUser().then(clearState);
  };

  return (
    

      

        
          Username:
          
        
      
      

        
          Email:
          
        
      
      

        
          Password:
          
        
      
      

        
          Confirm Password:
          
        
      
      Submit
    
  );
};

ReactDOM.render(, document.getElementById("root"));