React Js Remove All Spaces from String

<!DOCTYPE html>
<html>

function App() {
            const stringWithSpaces = 'f     o   n   t a w e s o m e i c o n s';
            const stringWithoutSpaces = stringWithSpaces.replace(/\s/g, '');

return (
               <div className='container'>
    <h3>React Js Remove All Spaces from String</h3>
    <p>String with Space: <pre>{stringWithSpaces}</pre></p>
    <p>String without space: <pre>{stringWithoutSpaces}</pre></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
        }

h3 {
            color: #333;
        }

p {
            margin-bottom: 10px;
        }

pre{
            font-weight: bold;
            color: #007bff;
        }
    </style>
</body>

</html>