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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 /** | 5 /** |
| 6 * The [Collection] interface is the public interface of all | 6 * The [Collection] interface is the public interface of all |
| 7 * collections. | 7 * collections. |
| 8 */ | 8 */ |
| 9 interface Collection<E> extends Iterable<E> { | 9 interface Collection<E> extends Iterable<E> { |
| 10 /** | 10 /** |
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| 46 /** | 46 /** |
| 47 * Returns true if there is no element in this collection. | 47 * Returns true if there is no element in this collection. |
| 48 */ | 48 */ |
| 49 bool isEmpty(); | 49 bool isEmpty(); |
| 50 | 50 |
| 51 /** | 51 /** |
| 52 * Returns the number of elements in this collection. | 52 * Returns the number of elements in this collection. |
| 53 */ | 53 */ |
| 54 int get length(); | 54 int get length(); |
| 55 } | 55 } |
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