validatePostalCode function
Validates postal codes for credit cards
Reminder: this package does not check with the user's bank or credit card company. Please use a payment processing service like Stripe or Braintree for that. The default minimum postal code string length. Set to 3 Checks if the postal code seems legit
Implementation
/// The default minimum postal code string length. Set to 3
// const int _DEFAULT_MIN_POSTAL_CODE_LENGTH = 3;
/// Checks if the postal code seems legit
ValidationResults validatePostalCode(String postalCode, {int? minLength}) {
// TODO implement
throw UnimplementedError();
}