React - Einleitung JSX

const person = {
  firstName: 'Douglas',
  lastName: 'Adams'
};

function outputName(user) {
  return `${user.firstName} ${user.lastName}`;
}

const App = (
  <div className="content">
    <h1>
      Keine Panik, {outputName(person)}!
    </h1>
  </div>
);

ReactDOM.render(
  element,
  document.getElementById('root')
);