toJson method
Implementation
@override
String? toJson(TimeOfDay? object) {
if (object == null) {
return null;
}
String _addLeadingZeroIfNeeded(int value) {
if (value < 10)
return '0$value';
return value.toString();
}
final String hourLabel = _addLeadingZeroIfNeeded(object.hour);
final String minuteLabel = _addLeadingZeroIfNeeded(object.minute);
return '$hourLabel:$minuteLabel';
}