creditCard property

String creditCard
getter/setter pair

Credit Card regex (Visa, MasterCard, AMEX, Discover)

Implementation

static String creditCard =
    r'^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9]{2})[0-9]{12}|3[47][0-9]{13}|(?:2131|1800|35\d{3})\d{11})$';