LanguageFeatures/Extension-methods/semantics_of_extension_members_lib.dart

/*
 * Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @author sgrekhov@unipro.ru
 */
// SharedOptions=--enable-experiment=extension-methods
library my_unary_number;

extension MyUnaryNumber on List<Object> {
  bool get isEven => length.isEven;
  bool get isOdd => !isEven;
}

extension on List<Object> {
  bool get isEven => true;
}