React Js Convert text to speech

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
  <div id="app"></div>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script>
  <script type="text/babel">
    const { useState, useEffect } = React;
    function App() {
      const [text, setText] = useState('This is Font Awesome Icons Site');
      const [speaking, setSpeaking] = useState(false);
      const [voices, setVoices] = useState([]);
      const [selectedVoice, setSelectedVoice] = useState(null);

useEffect(() => {
        function populateVoices() {
          const voiceList = window.speechSynthesis.getVoices();
          setVoices(voiceList);
          setSelectedVoice(voiceList.find(voice => voice.default));
        }

populateVoices(); // Call initially

// Listen for voiceschanged event to update the list of voices
        window.speechSynthesis.addEventListener('voiceschanged', populateVoices);
      }, []);

const handleTextChange = (event) => {
        setText(event.target.value);
      };

const handleVoiceChange = (event) => {
        const selectedVoice = voices[event.target.value];
        setSelectedVoice(selectedVoice);
      };

window.speechSynthesis.speak(utterance);
        }
      };

const handleStop = () => {
        if (speaking) {
          window.speechSynthesis.cancel();
          setSpeaking(false);
        }
      };

return (
        <div className='container'>
          <h3>React Js Convert Text to Speech</h3>
          <textarea
            value={text}
            onChange={handleTextChange}
            placeholder="Enter text to convert to speech"
          />
          <select onChange={handleVoiceChange} value={voices.indexOf(selectedVoice)}>
            <option value={-1}>Default Voice</option>
            {voices.map((voice, index) => (
              <option key={index} value={index}>
                {voice.name}
              </option>
            ))}
          </select>
          <button onClick={handleSpeak} disabled={speaking}>
            Speak
          </button>
          <button onClick={handleStop} disabled={!speaking}>
            Stop
          </button>
        </div>
      );
    }

ReactDOM.render(<App />, document.getElementById('app'));
  </script>

textarea {
      width: 100%;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 5px;
      margin-bottom: 10px;
      font-size: 14px;
      resize: vertical;
    }

select {
      width: 100%;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 5px;
      margin-bottom: 10px;
      font-size: 14px;
    }

button {
      padding: 8px 15px;
      background-color: #007bff;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      transition: background-color 0.3s ease;
      font-size: 14px;
    }

button:disabled {
      background-color: #ccc;
      cursor: not-allowed;
    }

button:hover {
      background-color: #0056b3;
    }

button+button {
      margin-left: 10px;
    }
  </style>
</body>

</html>