If the CardBrand has variants, and the cardNumber starts with one of the variant prefixes, return the length for that variant. Otherwise, return defaultMaxLength.

isMaxCvc

fun isMaxCvc(cvcText: String?): Boolean

isValidCardNumberLength

fun isValidCardNumberLength(cardNumber: String?): Boolean

Checks to see whether the input number is of the correct length, given the assumed brand of the card. This function does not perform a Luhn check.

isValidCvc

fun isValidCvc(cvc: String): Boolean

valueOf

fun valueOf(value: String): CardBrand

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

values

fun values(): Array<CardBrand>

Returns an array containing the constants of this enum type, in the order they're declared.