React Js Get Date of Next Monday

<!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, useEffect } = React;
    function App() {
      const [nextMonday, setNextMonday] = useState(null);
      useEffect(() => {
        function getNextMonday() {
          const today = new Date();
          const daysUntilMonday = 7 - today.getDay() + 1; // Calculate days until next Monday (0 = Sunday, 1 = Monday, ..., 6 = Saturday)
          const nextMonday = new Date(today);
          nextMonday.setDate(today.getDate() + daysUntilMonday);
          return nextMonday;
        }
        const nextMondayDate = getNextMonday();
        setNextMonday(nextMondayDate);
      }, []);
      return (
        <div className='container'>
          <h1 className='title'>React Js Get Date of Next Monday</h1>
          {nextMonday && (
            <p className='date-paragraph'>
              Next Monday is on {nextMonday.toDateString()}.
            </p>
          )}
        </div>

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

.container {
      margin: 0 auto;
      width: 600px;
      text-align: center;
      box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
      padding: 20px;
    }

.title {
      font-size: 24px;
      color: #333;
      margin: 0;
      padding: 10px;
    }

.date-paragraph {
      font-size: 18px;
      color: #666;
      margin: 10px 0;
    }
  </style>
</body>

</html>