| // Copyright (c) 2013, 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 E singleWhere(bool test(E element)) |
| /// Returns the single element that satisfies [test]. |
| /// Checks all elements to see if test(element) returns true. If exactly one |
| /// element satisfies test, that element is returned. |
| /// @description Checks that the single element satisfying [test] is returned. |
| /// @author msyabro |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var l = new Int8List.fromList([0, 0, 0, 0, 0, 5, 0, 0, -10, 0]); |
| |
| var res = l.singleWhere((e) => e > 0 ); |
| Expect.equals(5, res); |
| |
| res = l.singleWhere((e) => e < 0 ); |
| Expect.equals(-10, res); |
| } |