exquisite-osmium-3856

readme.md

exquisite-osmium-3856

Created with <3 with dartpad.dev.

main.dart

main() {
  print('First Date: ${findFirstDateOfTheWeek(DateTime.now())}');
  print('Last Date: ${findLastDateOfTheWeek(DateTime.now())}');
  print('First Date of Previous Week: ${findFirstDateOfPreviousWeek(DateTime.now())}');
}

/// Current Week
DateTime findFirstDateOfTheWeek(DateTime dateTime) {
  return dateTime.subtract(Duration(days: dateTime.weekday - 1));
}

DateTime findLastDateOfTheWeek(DateTime dateTime) {
  return dateTime.add(Duration(days: DateTime.daysPerWeek - dateTime.weekday));
}


/// Previous Week
/// Find first date of previous week using a date in current week.
/// [dateTime] A date in current week.
DateTime findFirstDateOfPreviousWeek(DateTime dateTime) {
  final DateTime sameWeekDayOfLastWeek =
      dateTime.subtract(const Duration(days: 7));
  return findFirstDateOfTheWeek(sameWeekDayOfLastWeek);
}

/// Find last date of previous week using a date in current week.
/// [dateTime] A date in current week.
DateTime findLastDateOfPreviousWeek(DateTime dateTime) {
  final DateTime sameWeekDayOfLastWeek =
      dateTime.subtract(const Duration(days: 7));
  return findLastDateOfTheWeek(sameWeekDayOfLastWeek);
}

/// Next Week
/// Find first date of next week using a date in current week.
/// [dateTime] A date in current week.
DateTime findFirstDateOfNextWeek(DateTime dateTime) {
  final DateTime sameWeekDayOfNextWeek = dateTime.add(const Duration(days: 7));
  return findFirstDateOfTheWeek(sameWeekDayOfNextWeek);
}

/// Find last date of next week using a date in current week.
/// [dateTime] A date in current week.
DateTime findLastDateOfNextWeek(DateTime dateTime) {
  final DateTime sameWeekDayOfNextWeek = dateTime.add(const Duration(days: 7));
  return findLastDateOfTheWeek(sameWeekDayOfNextWeek);
}