| public static IsCreditCardBigFour ( this creditCard ) : bool | ||
| creditCard | this | The credit card. |
| return | bool | |
public static bool IsCreditCardBigFour(this string creditCard)
{
if (CreditPassesFormatCheck(creditCard))
{
creditCard = CleanCreditCardNumber(creditCard);
return Regex.IsMatch(creditCard, RegexPattern.CREDIT_CARD_AMERICAN_EXPRESS) ||
Regex.IsMatch(creditCard, RegexPattern.CREDIT_CARD_DISCOVER) ||
Regex.IsMatch(creditCard, RegexPattern.CREDIT_CARD_MASTER_CARD) ||
Regex.IsMatch(creditCard, RegexPattern.CREDIT_CARD_VISA);
}
return false;
}
