isLastDayOfWeek method

bool isLastDayOfWeek(
  1. DateTime day, {
  2. int firstWeekday = DateTime.monday,
})

Checks if day is in the last day of a week.

You can define first weekday (Monday, Sunday or Saturday) with parameter firstWeekday. It should be one of the constant values DateTime.monday, ..., DateTime.sunday.

By default it's DateTime.monday, so the last day will be DateTime.sunday.

Implementation

bool isLastDayOfWeek(DateTime day, {int firstWeekday = DateTime.monday}) {
  assert(firstWeekday > 0 && firstWeekday < 8);

  return isSameDay(lastDayOfWeek(day, firstWeekday: firstWeekday), day);
}