Beginning with Dart 2.12, the @required annotation is now replaced by the required keyword. You should mark your field required if it is mandatory for others to pass some value to it . Short answer: Named parameters are optional by default in Dart.14 Oca 2019
Why do we need required in Flutter?
Beginning with Dart 2.12, the @required annotation is now replaced by the required keyword. You should mark your field required if it is mandatory for others to pass some value to it . Short answer: Named parameters are optional by default in Dart.14 Oca 2019