Disable dates + weekday numbers with flatpickr

I would like to be able to deactivate days + weekday numbers 1 to 7.

calendar.flatpickr({
                        disable: dateUnvailableCalendar,
                        minDate: "today",
                        onChange: function (selectedDates, dateStr) {
                            calendarHandleChange(dateStr);
                        }
                    });

This is what I have already done. this disable days i send in an array.
now i wish i could disable day number 5 and 7 of every week of the whole year.
Do you know how I can do this please?

Thank you for help.