iOS: Search A String In Array

ios_array_string_search.m

-(void)searchString:(NSString *)str inArray:(NSArray *)arr{
    for (id key in arr) {
    //check if there is a matching string (key and str)
        if ([key rangeOfString:str options:NSCaseInsensitiveSearch].location != NSNotFound) {
            NSLog(@"String: %@ Found", key);
        }
    }
}