React Js Get Element by Key

<!DOCTYPE html>
<html>

<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useRef } = React;

return (
        <div className='container'>
          <h3>React Js Get Element by key</h3>
          {elements.map((element) => (
            <div key={element.key} data-key={element.key}>
              {element.text}
            </div>
          ))}
          <button onClick={() => handleClick('element2')}>Access Element 2</button>
        </div>
      );
    }

ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    .container {
      border-radius: 8px;
      box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.1);
      padding: 20px;
      margin: 20px auto;
      max-width: 600px;
      text-align: center;
    }
  </style>
</body>

</html>