isCreditCard.js 1.5 KB

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  1. import assertString from './util/assertString';
  2. import isLuhnValid from './isLuhnNumber';
  3. var cards = {
  4. amex: /^3[47][0-9]{13}$/,
  5. dinersclub: /^3(?:0[0-5]|[68][0-9])[0-9]{11}$/,
  6. discover: /^6(?:011|5[0-9][0-9])[0-9]{12,15}$/,
  7. jcb: /^(?:2131|1800|35\d{3})\d{11}$/,
  8. mastercard: /^5[1-5][0-9]{2}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}$/,
  9. // /^[25][1-7][0-9]{14}$/;
  10. unionpay: /^(6[27][0-9]{14}|^(81[0-9]{14,17}))$/,
  11. visa: /^(?:4[0-9]{12})(?:[0-9]{3,6})?$/
  12. };
  13. /* eslint-disable max-len */
  14. var allCards = /^(?:4[0-9]{12}(?:[0-9]{3,6})?|5[1-5][0-9]{14}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}|6(?:011|5[0-9][0-9])[0-9]{12,15}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11}|6[27][0-9]{14}|^(81[0-9]{14,17}))$/;
  15. /* eslint-enable max-len */
  16. export default function isCreditCard(card) {
  17. var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  18. assertString(card);
  19. var provider = options.provider;
  20. var sanitized = card.replace(/[- ]+/g, '');
  21. if (provider && provider.toLowerCase() in cards) {
  22. // specific provider in the list
  23. if (!cards[provider.toLowerCase()].test(sanitized)) {
  24. return false;
  25. }
  26. } else if (provider && !(provider.toLowerCase() in cards)) {
  27. /* specific provider not in the list */
  28. throw new Error("".concat(provider, " is not a valid credit card provider."));
  29. } else if (!allCards.test(sanitized)) {
  30. // no specific provider
  31. return false;
  32. }
  33. return isLuhnValid(card);
  34. }