React Js Load More onclick button

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <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 [itemsToShow, setItemsToShow] = useState(2); // Initially, display 5 items
      const [loading, setLoading] = useState(false); // Loading state

// Demo text items
      const items = [
        'United States, Population: 331 million',
        'Canada, Population: 38 million',
        'Mexico, Population: 126 million',
        'Brazil, Population: 214 million',
        'Argentina, Population: 45 million',
        'United Kingdom, Population: 67 million',
        'France, Population: 67 million',
        'Germany, Population: 83 million',
        'Italy, Population: 60 million',
        'Spain, Population: 47 million',
        'Russia, Population: 145 million',
        'Japan, Population: 126 million',
        'South Korea, Population: 52 million',
        'Australia, Population: 26 million',
        'New Zealand, Population: 5 million',
        'South Africa, Population: 59 million',
        'Nigeria, Population: 206 million',
        'Egypt, Population: 104 million',
        'Kenya, Population: 54 million',
        'Saudi Arabia, Population: 35 million',
        'United Arab Emirates, Population: 10 million',
        'Turkey, Population: 83 million',
        'Greece, Population: 10 million',
        'Canada, Population: 38 million',
        'Mexico, Population: 126 million',
        'Brazil, Population: 214 million',
        'Argentina, Population: 45 million',
        'Chile, Population: 19 million',
        'Colombia, Population: 51 million',
        'Peru, Population: 33 million',
        'Australia, Population: 26 million',
        'New Zealand, Population: 5 million',
        'South Africa, Population: 59 million',
        'Nigeria, Population: 206 million',
        'Egypt, Population: 104 million',
        'Kenya, Population: 54 million',
        'Saudi Arabia, Population: 35 million',
        'United Arab Emirates, Population: 10 million',
        'Turkey, Population: 83 million',
        'Greece, Population: 10 million',
        'Canada, Population: 38 million',
        'Mexico, Population: 126 million',
        'Brazil, Population: 214 million',
        'Argentina, Population: 45 million',
        'Chile, Population: 19 million',
        'Colombia, Population: 51 million',
        'Peru, Population: 33 million',
      ];

// Function to load more items
      const loadMoreItems = () => {
        setLoading(true); // Set loading to true when loading starts
        setTimeout(() => {
          setItemsToShow(itemsToShow + 2); // Load 2 more items at a time
          setLoading(false); // Set loading to false when loading is complete
        }, 1000); // Simulate loading delay (you can adjust this)
      };

return (
        <div className='container'>
          <h3 className='heading'>React Js Load More onclick Button</h3>
          <ul className='item-list'>
            {items.slice(0, itemsToShow).map((item, index) => (
              <li key={index} className='list-item'>{item}</li>
            ))}
          </ul>
          {loading ? (
            <p className='loading-text'>Loading...</p> // Display a loading message or spinner while loading
          ) : (
            itemsToShow < items.length && (
              <button onClick={loadMoreItems} className='load-more-button'>Load More</button>
            )
          )}
        </div>

);
    }
    ReactDOM.render(<App />, document.getElementById("app"));
  </script>
  <style>
    * {
      box-sizing: border-box;
    }

.container {
      margin: 0 auto;
      width: 600px;
      text-align: center;
      background: #fff;
      border-radius: 5px;
      padding: 20px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }

.heading {
      font-size: 24px;
      color: #333;
    }

.item-list {
      list-style: none;
      padding: 0;
    }

.list-item {
      font-size: 18px;
      margin: 10px 0;
      background-color: #f1f1f1;
      border-radius: 4px;
      padding: 10px;
      
    }

.loading-text {
      font-size: 18px;
      color: #555;
      margin-top: 20px;
    }

.load-more-button {
      background-color: #007bff;
      color: #fff;
      border: none;
      border-radius: 4px;
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
      margin-top: 20px;
    }

.load-more-button:hover {
      background-color: #0056b3;
    }
  </style>
</body>

</html>