| // Copyright (c) 2011, 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. |
| |
| /// @assertion Map<K, V> abstract class |
| /// An unordered collection of key-value pairs, from which you retrieve a value |
| /// by using its associated key. |
| /// Each key must be unique. |
| /// @description Checks that null keys are supported. |
| /// @author kaigorodov |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Map<String?, Object> map = new Map<String?, Object>(); |
| map[null] = "123"; |
| Expect.equals("123", map[null]); |
| } |