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Side by Side Diff: sdk/lib/core/list.dart

Issue 315173005: Add "last" setter to List. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 6 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, 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 part of dart.core; 5 part of dart.core;
6 6
7 /** 7 /**
8 * An indexable collection of objects with a length. 8 * An indexable collection of objects with a length.
9 * 9 *
10 * Subclasses of this class implement different kinds of lists. 10 * Subclasses of this class implement different kinds of lists.
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147 * Changes the length of this list. 147 * Changes the length of this list.
148 * 148 *
149 * If [newLength] is greater than 149 * If [newLength] is greater than
150 * the current length, entries are initialized to [:null:]. 150 * the current length, entries are initialized to [:null:].
151 * 151 *
152 * Throws an [UnsupportedError] if the list is fixed-length. 152 * Throws an [UnsupportedError] if the list is fixed-length.
153 */ 153 */
154 void set length(int newLength); 154 void set length(int newLength);
155 155
156 /** 156 /**
157 * Replaces the last element of the list with [value].
158 *
159 * Using `list.last = value` is equivalent to `list[list.length - 1] = value`,
160 * only shorter and more readable.
161 *
162 * The list must be modifiable and must have a length greater than zero.
163 */
164 void set last(E value);
165
166 /**
157 * Adds [value] to the end of this list, 167 * Adds [value] to the end of this list,
158 * extending the length by one. 168 * extending the length by one.
159 * 169 *
160 * Throws an [UnsupportedError] if the list is fixed-length. 170 * Throws an [UnsupportedError] if the list is fixed-length.
161 */ 171 */
162 void add(E value); 172 void add(E value);
163 173
164 /** 174 /**
165 * Appends all objects of [iterable] to the end of this list. 175 * Appends all objects of [iterable] to the end of this list.
166 * 176 *
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454 * as values. The `Map.keys` [Iterable] iterates the indices of this list 464 * as values. The `Map.keys` [Iterable] iterates the indices of this list
455 * in numerical order. 465 * in numerical order.
456 * 466 *
457 * List<String> words = ['fee', 'fi', 'fo', 'fum']; 467 * List<String> words = ['fee', 'fi', 'fo', 'fum'];
458 * Map<int, String> map = words.asMap(); 468 * Map<int, String> map = words.asMap();
459 * map[0] + map[1]; // 'feefi'; 469 * map[0] + map[1]; // 'feefi';
460 * map.keys.toList(); // [0, 1, 2, 3] 470 * map.keys.toList(); // [0, 1, 2, 3]
461 */ 471 */
462 Map<int, E> asMap(); 472 Map<int, E> asMap();
463 } 473 }
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