React Js count Number of lists in a list of lists

<!DOCTYPE html>
<html>

</div>
  <script type="text/babel">
    const { useState } = React;

function App() {
      const listOfLists = [
        [1, 2, 3],
        ['a', 'b', 'c'],
        [true, false],
        ['x', 'y'],
      ];

const numberOfLists = listOfLists.filter(Array.isArray).length;

return (
        <div className='container'>
          <h3>React Js count Number of lists in a list of lists</h3>
          <p>List of Lists:</p>
          <ul>
            {listOfLists.map((list, index) => (
              <li key={index}>{JSON.stringify(list)}</li>
            ))}
          </ul>
          <p>Number of Lists: {numberOfLists}</p>
        </div>
      );

}

ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    .container {
      width: 400px;
      margin: 0 auto;
      box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.06) 0px 2px 4px -1px;
      padding: 20px
    }

.container p {
      font-size: 18px;
      color: #333;
      margin-bottom: 10px;
    }

ul {
      list-style: none;
      padding: 0;
    }

li {
      background-color: #fff;
      border: 1px solid #ddd;
      border-radius: 5px;
      padding: 10px;
      margin: 5px 0;
    }

li:hover {
      background-color: #f0f0f0;
    }

p:last-child {
      font-weight: bold;
      margin-top: 10px;
    }

/* You can add more styles for different states if needed */
  </style>
</body>

</html>