isCreditCard static method
Check if the string is a credit card
Implementation
static bool isCreditCard(String str) {
RegExp _creditCard = new RegExp(
r'^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$');
String sanitized = str.replaceAll(new RegExp(r'[^0-9]+'), '');
if (!_creditCard.hasMatch(sanitized)) {
return false;
} else {
return true;
}
}