isValidCreditCard

Validates a credit-card number using luhn's algorithm.

bool

isValidCreditCard

(

size_t[] allowedDigits = null

)

Parameters

creditCardNumber string: The number of the credit card.
allowedDigits size_t[]: The allowed length of digits. If it's null it allows credit card numbers to be any length.

Type: bool

True if the credit card number is valid according to the allowed digits and luhn's algorithm, false otherwise.