jcbCard static method

bool jcbCard(
  1. String cardNumber
)

Validates whether the given cardNumber is a valid JCB card number.

The cardNumber parameter should be a string representing a JCB card number.

Returns true if the cardNumber is valid, false otherwise.

Implementation

static bool jcbCard(String cardNumber) {
  String pattern = r'^(?:2131|1800|35\d{3})\d{11}$';
  RegExp regExp = RegExp(pattern);
  return regExp.hasMatch(cardNumber);
}