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ArrayList增加取下标接口

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Signed-off-by: 张鸿雨 <zhanghongyu42@huawei.com>
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张鸿雨 2024-07-25 16:44:03 +08:00
parent 5580194b70
commit cbf61b6cb3
1 changed files with 13 additions and 0 deletions
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13
api/@ohos.util.ArrayList.d.ts vendored
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@ -749,6 +749,19 @@ declare class ArrayList<T> {
* @since 12 * @since 12
*/ */
isEmpty(): boolean; isEmpty(): boolean;
/**
* Returns the item at that index.
*
* @param { number } index - The zero-based index of the desired code unit.
* Throws error if index < 0 or index >= arraylist.length.
* @returns { T } The element in the arraylist matching the given index.
* @throws { BusinessError } 401 - Parameter error.
* @throws { BusinessError } 10200001 - The value of index is out of range.
* @syscap SystemCapability.Utils.Lang
* @atomicservice
* @since 12
*/
[index: number]: T;
/** /**
* If the newCapacity provided by the user is greater than or equal to length, * If the newCapacity provided by the user is greater than or equal to length,
* change the capacity of the arraylist to newCapacity, otherwise the capacity will not be changed * change the capacity of the arraylist to newCapacity, otherwise the capacity will not be changed