countDays method
Calculates the number of days between two DateTime objects.
The differenceDateTime
parameter specifies the end date for the calculation.
Returns the number of days as an integer value.
Implementation
int countDays(DateTime? differenceDateTime) {
int difference =
(differenceDateTime ?? DateTime.now()).millisecondsSinceEpoch -
millisecondsSinceEpoch;
int count = (difference / 86400000).truncate();
// return count.toString() + (count > 1 ? ' days' : ' day');
return count;
}