<!DOCTYPE html>
<html>
<head>
<title>Title of the documnet</title>
<script src="example.js" async></script>
<noscript>Sorry, your browser does not support JavaScript!</noscript>
</head>
<body>
<h1>Example</h1>
<p>
A browser that doesn’t support JavaScript will display the content inside the noscript element.
</p>
<script>
document.write("My first JavaScript example!")
</script>
</body>
</html>