CODE EXAMPLE FOR JAVASCRIPT

React passing data fom child to parent component

const NoAuthWebsite = ({ login }) => {
  const [userName, setUserName] = useState("");

  return (
    <form onSubmit={() => login(userName)}>
      <input
        placeholder="username"
        required="required"
        onChange={e => setUserName(e.target.value)}
        value={userName}
      />
      <button type="submit">
        submit
      </button>
    </form>
  );
};