class Greeter {
  constructor(name) {
    this.name = name;
  }

  greet() {
    return `Hello, ${this.name}!`;
  }
}

function App() {
  const g = new Greeter('Ava');
  console.log(g.greet()); // "Hello, Ava!"

  return <p>{g.greet()}</p>;
}

export default App;