Parameterized Constructor in javascript.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        class Mobile{
            constructor(model_no){
                this.model = model_no;
            }
            show(){
                return this.model + "Price Rs: 3000";
            }
        }
        var nokia = new Mobile("lg");
        document.write(nokia.show());
    </script>
</body>
</html>