Untitled

<!DOCTYPE html>
<html>
<head>
    <title>Paragraph</title>
<script src="my.js"></script>
</head>
<body>
<p>This is second page
welcome</p>
</body>
</html>

var userName=prompt("What is your first name");
var lastName=prompt("What is your last name");
var age=prompt("What is your age");
alert("hello",+username+,"",+ lastname);