Search NSArray for value matching value

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Why not just to use predicates to do that for you?:

// For number kind of values:
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF = %@", value];
NSArray *results = [array_to_search filteredArrayUsingPredicate:predicate];

// For string kind of values:
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains[cd] %@", value];
NSArray *results = [array_to_search filteredArrayUsingPredicate:predicate];

// For any object kind of value (yes, you can search objects also):
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", value];
NSArray *results = [array_to_search filteredArrayUsingPredicate:predicate];

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