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35 lines
1.4 KiB
Objective-C
35 lines
1.4 KiB
Objective-C
//
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// Copyright 2021-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only
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// Please see LICENSE in the repository root for full details.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface NSArray (Element)
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/// Returns an array containing the results of mapping the given closure over the array's elements.
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/// @param transform A mapping closure. `transform` accepts an element of this array as its parameter
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/// and returns a transformed value of the same or of a different type.
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/// @return An array containing the transformed elements of this array.
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- (NSArray *)vc_map:(id (^)(id obj))transform;
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/// Returns an array containing the non-nil results of mapping the given closure over the array's elements.
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/// @param transform A mapping closure. `transform` accepts an element of this array as its parameter
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/// and returns a nullable transformed value of the same or of a different type.
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/// @return An array of the non-nil results of calling `transform` with each element of the array.
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- (NSArray *)vc_compactMap:(id _Nullable (^)(id obj))transform;
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/// Returns an array containing the concatenated results of mapping the given closure over the array's elements.
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/// @param transform A mapping closure. `transform` accepts an element of this array as its parameter
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/// and returns an array..
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/// @return The resulting flattened array.
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- (NSArray *)vc_flatMap:(NSArray* (^)(id obj))transform;
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@end
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NS_ASSUME_NONNULL_END
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