isToday method
Returns true
if the date is the same as a specific dateTime
or the current time.
特定のdateTime
もしくは現在時間と同じ日付の場合はtrue
を返します
Implementation
bool isToday([DateTime? dateTime]) {
dateTime ??= DateTime.now();
return year == dateTime.year &&
month == dateTime.month &&
day == dateTime.day;
}