<!doctype html>
<html>
<head>
    <title>JS Tester</title>
</head>
<body>   
    <script>        
        document.addEventListener("DOMContentLoaded", (e) => {
            message("Document ready", e);
        });
        window.onload = (e) => {
            message("Window ready", e);
        }
        function message(val, event) {
            console.log(event);
            console.log(val);
        }
    </script>
</body>
</html>
