write class in another page and call to index page

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import React from 'react';

import ReactDOM from 'react-dom/client';

import Car from './Car'; // Import the Car component

const container = document.getElementById('root');

const root = ReactDOM.createRoot(container);

root.render(<Car />); // Render the Car component

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// car.js

import React from 'react';

class Car extends React.Component {

  constructor() {

    super();

    this.state = { color: "red" };

  }

  render() {

    return <h2>I am a Car!</h2>;

  }

}

export default Car;

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