Ví dụ ReactJS đầu tiên.
Mã nguồn tham khảo:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Hello React!</title>
<script src="https://npmcdn.com/[email protected]/dist/react.min.js"></script>
<script src="https://npmcdn.com/[email protected]/dist/react-dom.min.js"></script>
<script src="https://npmcdn.com/[email protected]/browser.min.js"></script>
</head>
<body>
<div id="example"></div>
<script type="text/babel">
ReactDOM.render(<h1>Hello, world!</h1>, document.getElementById('example'));
</script>
</body>
</html>