discoverCard static method

bool discoverCard(
  1. String cardNumber
)

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

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

Returns true if the cardNumber is valid, false otherwise.

Implementation

static bool discoverCard(String cardNumber) {
  String pattern = r'^6(?:011|5[0-9]{2})[0-9]{12}$';
  RegExp regExp = RegExp(pattern);
  return regExp.hasMatch(cardNumber);
}