React Js Concat String with Space

<!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;
        const App = () => {
            const firstName = 'John';
            const lastName = 'Doe';
            const age = 30;
            const occupation = 'Engineer';

const fullName = `${firstName} ${lastName}`;
            const bio = `Age: ${age} | Occupation: ${occupation}`;

return (
                <div className='container'>
                    <h3>React Js String Join with Space</h3>
                    <p>Full Name: {fullName}</p>
                    <p>{bio}</p>
                </div>
            );
        }

ReactDOM.render(<App />, document.getElementById('app'));
    </script>
    <style>
        .container {
            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);
            width: 600px;
            margin: 0 auto;
            padding: 20px;
        }

p {
            font-size: 18px;
            margin-top: 10px;
        }

/* Styles remain unchanged */
    </style>
</body>

</html>