getCalendarWeek static method
Calculates the calendar week for the given date
.
Implementation
static int getCalendarWeek(DateTime date) {
//var dayOfYear = int.parse(DateFormat('D').format(date));
final diff = date.difference(DateTime(date.year, 1, 1));
final diffInDays = diff.inDays;
return ((diffInDays - date.weekday + 10) / 7).floor();
}