weeksInYear method

int weeksInYear()

Number of weeks in this Jalali year.

Implementation

int weeksInYear() {
  final UJalali lastDay = UJalali(year, esfand, isLeapYear() ? 30 : 29);
  final UJalali firstDay = UJalali(year);
  return (lastDay.julianDayNumber - firstDay.julianDayNumber + weekDay) ~/ 7 + 1;
}