subtractDays method
Subtracts the specified number of days from the current DateTime.
Args: days (int?): The number of days to subtract.
Returns: DateTime: A new DateTime object with the subtracted days.
Implementation
@useResult
DateTime subtractDays(int? days) {
if (days == null || days == 0) {
return this;
}
return Jiffy.parseFromDateTime(this).subtract(days: days).dateTime;
}