example-react-stimulus.jsx

// assets/controllers/app_controller.jsx

import React from 'react';
import { render } from 'react-dom';
import { Controller } from 'stimulus';
import App from '../components/App.jsx';

export default class extends Controller {
    connect() {
        render(<App />, this.element);
    }
}

// In your Twig file:
// <div data-controller="app"></div>