<!DOCTYPE html>
<html>
<body>
<h1>My First Web Page</h1>
<p>
Activate debugging in your browser (Chrome, IE, Firefox) with F12, and select "Console" in the debugger menu.
</p>
<script>
a = 5;
b = 6;
c = a + b;
console.log(c);
</script>
</body>
</html>