getBankNameFromCard static method
Gets bank name from card number @param cardNumber The card number @returns String? Bank name or null if not found Example: PersianTools.getBankNameFromCard("6219861034567890") => "بانک سامان"
Implementation
static String? getBankNameFromCard(String cardNumber) {
if (cardNumber.length != 16) return null;
return _bankCardPrefixes[cardNumber.substring(0, 6)];
}