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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = isCreditCard;
var _assertString = require('./util/assertString');
var _assertString2 = _interopRequireDefault(_assertString);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/* eslint-disable max-len */
var creditCard = /^(?:4[0-9]{12}(?:[0-9]{3})?|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}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})|62[0-9]{14}$/;
/* eslint-enable max-len */
function isCreditCard(str) {
(0, _assertString2.default)(str);
var sanitized = str.replace(/[^0-9]+/g, '');
if (!creditCard.test(sanitized)) {
return false;
}
var sum = 0;
var digit = void 0;
var tmpNum = void 0;
var shouldDouble = void 0;
for (var i = sanitized.length - 1; i >= 0; i--) {
digit = sanitized.substring(i, i + 1);
tmpNum = parseInt(digit, 10);
if (shouldDouble) {
tmpNum *= 2;
if (tmpNum >= 10) {
sum += tmpNum % 10 + 1;
} else {
sum += tmpNum;
}
} else {
sum += tmpNum;
}
shouldDouble = !shouldDouble;
}
return !!(sum % 10 === 0 ? sanitized : false);
}
module.exports = exports['default'];