React Js Convert All Array Element to Lowercase

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8" />
  <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 src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useState } = React;
    function App() {
      const [originalArray, setOriginalArray] = useState(["Hello", "World", "React", "JS"]);
      const convertArrayToLowerCase = () => {
        const lowercaseArray = originalArray.map(item => item.toLowerCase());
        setOriginalArray(lowercaseArray);
      };

return (
        <div className='container'>
          <h2>React Js Array Element to Lowercase</h2>
          <button onClick={convertArrayToLowerCase}>Convert to Lowercase</button>
          <p>{JSON.stringify(originalArray)}</p>

</div>
      );
    }

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

.container {
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
      text-align: center;
      max-width: 600px;
      margin: 0 auto;
    }

button {
      display: inline-block;
      padding: 10px 20px;
      background-color: #3498db;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s ease;
    }

button:hover {
      background-color: #2980b9;
    }
  </style>
</body>

</html>