CowGroup constructor Null safety

CowGroup(
  1. {required int id,
  2. required String name,
  3. List<Cow> cows = const [],
  4. bool isSelected = false,
  5. TextEditingController? controller,
  6. FocusNode? focusNode}
)

Implementation

CowGroup({
  required this.id,
  required this.name,
  this.cows = const [],
  this.isSelected = false,
  this.controller,
  this.focusNode,
});