text: /* eslint-disable */
  /*
   * Luhn algorithm implementation in JavaScript
   * Copyright (c) 2009 Nicholas C. Zakas
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  "use strict";
  function luhn10(identifier) {
      var sum = 0;
      var alt = false;
      var i = identifier.length - 1;
      var num;
      while (i >= 0) {
          num = parseInt(identifier.charAt(i), 10);
          if (alt) {
              num *= 2;
              if (num > 9) {
                  num = (num % 10) + 1; // eslint-disable-line no-extra-parens
              }
          }
          alt = !alt;
          sum += num;
          i--;
      }
      return sum % 10 === 0;
  }
  module.exports = luhn10;
  