Switch Day of week JS

<script>
        function onDayButtonClick() {
            var dayIndex = jsConsole.readInteger("#tb-day");

            var day;
            switch (dayIndex) {
                case 1: day = "Monday"; break;
                case 2: day = "Tuesday"; break;
                case 3: day = "Wednesday"; break;
                case 4: day = "Thursday"; break;
                case 5: day = "Friday"; break;
                case 6: day = "Saturday"; break;
                case 7: day = "Sunday"; break;
                default:
                    day = "Invalid day"; break;
            }
            jsConsole.writeLine(day);
        }
    </script>