firstWhereOrNull method
Implementation
T? firstWhereOrNull(bool Function(T) condition) {
final List<T> data = where((condition)).toList();
return data.isEmpty ? null : data.first;
}
T? firstWhereOrNull(bool Function(T) condition) {
final List<T> data = where((condition)).toList();
return data.isEmpty ? null : data.first;
}