<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Global Methods</h1>
<h2>The isNaN() Method</h2>
<p>Is "Hello" NaN?</p>
<p id="demo"></p>
<script>
let text = "Hello";
document.getElementById("demo").innerHTML = isNaN(text);
</script>
</body>
</html>