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. var allCards = function () {
  14. var tmpCardsArray = [];
  15. for (var cardProvider in cards) {
  16. // istanbul ignore else
  17. if (cards.hasOwnProperty(cardProvider)) {
  18. tmpCardsArray.push(cards[cardProvider]);
  19. }
  20. }
  21. return tmpCardsArray;
  22. }();
  23. export default function isCreditCard(card) {
  24. var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  25. assertString(card);
  26. var provider = options.provider;
  27. var sanitized = card.replace(/[- ]+/g, '');
  28. if (provider && provider.toLowerCase() in cards) {
  29. // specific provider in the list
  30. if (!cards[provider.toLowerCase()].test(sanitized)) {
  31. return false;
  32. }
  33. } else if (provider && !(provider.toLowerCase() in cards)) {
  34. /* specific provider not in the list */
  35. throw new Error("".concat(provider, " is not a valid credit card provider."));
  36. } else if (!allCards.some(function (cardProvider) {
  37. return cardProvider.test(sanitized);
  38. })) {
  39. // no specific provider
  40. return false;
  41. }
  42. return isLuhnValid(card);
  43. }