React Js Get Text from div

<!DOCTYPE html>
<html>

<body>
    <div id="app"></div>
    <script type="text/babel">
        const { useRef } = React;

function App() {
            const divRef = useRef(null);

const handleClick = () => {
                const text = divRef.current.textContent;
                alert(text);
            };

return (
                <div className='container'>
                    <h3>React Js Get Text from div</h3>
                    <div ref={divRef}>
                        This is some text inside the div</div>
                    <button onClick={handleClick}>Get Text</button>
                </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 {
            font-size: 20px;
            margin-bottom: 10px;
        }

button {
            background-color: #007bff;
            color: #ffffff;
            border: none;
            padding: 10px 20px;
            font-size: 16px;
            border-radius: 3px;
            cursor: pointer;
        }

button:hover {
            background-color: #0069d9;
        }

button:focus {
            outline: none;
        }
    </style>
</body>

</html>