dayListForMonth static method
Implementation
static List<int> dayListForMonth(int year, int month) {
int shift = DateTime.utc(year, month, 1).weekday % 7;
int daysInMonth = daysCount(year, month);
List<int> ret = List.generate(shift, (index) => -1);
List<int> _day = List.generate(daysInMonth, (index) => index + 1);
ret.addAll(_day);
return ret;
}