HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <title>React counter</title>

</head>

<body>

  <div id="root"></div>



  <script crossorigin src="https://unpkg.com/react@18/umd/react.development.js"></script>

  <script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>

  <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>

  <script type="text/babel">

    const { useState } = React;



    function Counter() {

      const [count, setCount] = useState(0);



      return (

        <div>

          <p>Count: {count}</p>

          <button type="button" onClick={() => setCount(count + 1)}>

            Increment

          </button>

        </div>

      );

    }



    const root = ReactDOM.createRoot(document.getElementById('root'));

    root.render(<Counter />);

  </script>

</body>

</html>

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React Introduction — useState Counter