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alexruperez/NSDictionary+AllKeysStartingWith.h

Created May 10, 2013 07:46
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How to get all keys starting with a common NSString in a NSDictionary
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NSDictionary+AllKeysStartingWith.h
//
// NSDictionary+AllKeysStartingWith.h
//
// Copyright (c) 2013 alexruperez.
//
#import <Foundation/Foundation.h>
@interface NSDictionary (AllKeysStartingWith)
- (NSArray*)allKeysStartingWith:(NSString*)onset;
@end
Raw
NSDictionary+AllKeysStartingWith.m
//
// NSDictionary+AllKeysStartingWith.m
//
// Copyright (c) 2013 alexruperez.
//
#import "NSDictionary+AllKeysStartingWith.h"
@implementation NSDictionary (AllKeysStartingWith)
- (NSArray*)allKeysStartingWith:(NSString*)onset
{
return [[self allKeys] filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"SELF BEGINSWITH[cd] %@", onset]];
}
@end
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