SQLite: Getting an error message

   if(sqlite3_prepare_v2(yerocDB, sqlstmt, -1, &compiledstatement, NULL)==SQLITE_OK)
    {
        int result = sqlite3_step(compiledstatement);

        if(SQLITE_DONE != result)

            NSAssert1(0,@"Error while creating delete statement => %s",sqlite3_errmsg(yerocDB) );
    }else{
        NSLog(@"didn't delete error: %s", sqlite3_errmsg(yerocDB));

Objective-C: checking when something is Null

dataDictionary2 == (id)[NSNull null]

iOS Email, Phone, and Credit Card Number Regex

-(BOOL)checkCellFormatting:(NSString* )phoneNumber

{

    

    NSString *phoneRegex = @"[235689][0-9]{6}([0-9]{3})?";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];

    BOOL matches = [test evaluateWithObject:phoneNumber];

    

    return matches;

}

-(BOOL)checkEmailFormatting:(NSString* )emailAddress

{

    

    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

    BOOL matches = [test evaluateWithObject:emailAddress];

    

    return matches;

}

-(BOOL) isCreditCardValid:(NSString*)creditCardNumber

{

    

    

    NSString *creditCardRegex = @"^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", creditCardRegex];

    BOOL matches = [test evaluateWithObject:creditCardNumber];

        

    return matches;

        

}

-(BOOL) isCCVValid:(NSString*)ccvNumber

{

    

    

    NSString *ccvRegex = @"/^[0-9]{3,4}$/";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", ccvRegex];

    BOOL matches = [test evaluateWithObject:ccvNumber];

    

    return matches;

    

}

-(BOOL) isExpirationDateValid:(NSString*)expirationDate

{

    

    

    NSString *expirationDateRegex = @"(1[2-9]|[2-9][0-9])(0[1-9]|1[0-2])";

    NSPredicate *test = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", expirationDateRegex];

    BOOL matches = [test evaluateWithObject:expirationDate];

    

    return matches;

}

Converting NSDate to Human Readable Date (iOS Dev)

    NSString* requestedOrderDateString = @"Delivery Date: ";

    

    requestedOrderDateString = [requestedOrderDateString stringByAppendingString:[self convertDateToMediumDateStyleString:order.dropOffDate]];

Currency Formatting to Double Digit (Dollars and Cents) (iOS Development)

    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init] ;

    [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle];

    NSString *numberAsString = [numberFormatter stringFromNumber:order.orderAmount];

    totalPrice = [totalPrice stringByAppendingString:numberAsString];

Getting Latitude and Longitude From Google API with Perl

    sub __getLatLngCoords

    {

        my ($self, $addy) = @_;

    

        my $geocoder = Geo::Coder::Google->new(apiver => 3, key => '<PLACE GOOGLE KEY HERE>', sensor => 'false');

    

        my $location = $geocoder->geocode(location => $addy);

    

        my $lat = '';

    

        my $lng = '';

    

        $lat = $location->{geometry}{location}{lat};

    

        $lng = $location->{geometry}{location}{lng};

    

        my @coords;

    

        if ($lat && $lng)

        {

        

            #print "$addy\n";

        

            push (@coords, $lat);

        

            push (@coords, $lng);

            #print "Addy: @coords\n";

        

        }

        else

        {

                push (@coords, "NA");

            

                push (@coords, "NA");

            

        }

            

        #print "Alt Addy: @coords\n";

        return @coords;

    

    

    }

Making Buttons Pretty in iOS

http://undefinedvalue.com/2010/02/27/shiny-iphone-buttons-without-photoshop