name property Null safety

Implementation

String get name {
  switch (this) {
    case FeedbackType.helpful:
      return "도움됨";
    case FeedbackType.notHelpful:
      return "도움되지않음";
    case FeedbackType.dontKnow:
      return "모르겠음";
    default:
      return "-";
  }
}