KOKINIO - MANAGER

Edit File: isLuhnValid.js

"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = isLuhnValid; var _assertString = _interopRequireDefault(require("./util/assertString")); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function isLuhnValid(str) { (0, _assertString.default)(str); var sanitized = str.replace(/[- ]+/g, ''); var sum = 0; var digit; var tmpNum; var shouldDouble; 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; module.exports.default = exports.default;