<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JavaScript Strings</title>
<script>
function displayString() {
let message = "Hello, this is a dynamic string!";
document.getElementById("output").innerHTML = message;
}
</script>
</head>
<body onload="displayString()">
<div id="output"></div>
</body>
</html>