mirror of
https://github.com/oxen-io/session-ios.git
synced 2023-12-13 21:30:14 +01:00
35 lines
1.2 KiB
Objective-C
35 lines
1.2 KiB
Objective-C
//
|
|
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
|
|
//
|
|
|
|
@interface NSArray (FunctionalUtil)
|
|
|
|
/// Returns true when any of the items in this array match the given predicate.
|
|
- (bool)any:(int (^)(id item))predicate;
|
|
|
|
/// Returns true when all of the items in this array match the given predicate.
|
|
- (bool)all:(int (^)(id item))predicate;
|
|
|
|
/// Returns the first item in this array that matches the given predicate, or else returns nil if none match it.
|
|
- (id)firstMatchingElseNil:(int (^)(id item))predicate;
|
|
|
|
/// Returns an array of all the results of passing items from this array through the given projection function.
|
|
- (NSArray *)map:(id (^)(id item))projection;
|
|
|
|
/// Returns an array of all the results of passing items from this array through the given projection function.
|
|
- (NSArray *)filter:(int (^)(id item))predicate;
|
|
|
|
/// Returns the sum of the doubles in this array of doubles.
|
|
- (double)sumDouble;
|
|
|
|
/// Returns the sum of the unsigned integers in this array of unsigned integers.
|
|
- (NSUInteger)sumNSUInteger;
|
|
|
|
/// Returns the sum of the integers in this array of integers.
|
|
- (NSInteger)sumNSInteger;
|
|
|
|
- (NSDictionary *)keyedBy:(id (^)(id))keySelector;
|
|
- (NSDictionary *)groupBy:(id (^)(id value))keySelector;
|
|
|
|
@end
|