mobileValidator property

Implementation

StreamTransformer<String, String> mobileValidator =
    StreamTransformer<String, String>.fromHandlers(
      handleData: (String mobileNumber, EventSink<String> sink) {
        final String? error = PhoneNumberValidator().validate(mobileNumber);
        error != null ? sink.addError(error) : sink.add(mobileNumber);
      },
    );