text: import toInteger from '../_lib/toInteger/index.js';
  import addBusinessDays from '../addBusinessDays/index.js';
  import requiredArgs from '../_lib/requiredArgs/index.js';
  /**
   * @name subBusinessDays
   * @category Day Helpers
   * @summary Substract the specified number of business days (mon - fri) to the given date.
   *
   * @description
   * Substract the specified number of business days (mon - fri) to the given date, ignoring weekends.
   *
   * @param {Date|Number} date - the date to be changed
   * @param {Number} amount - the amount of business days to be subtracted
   * @returns {Date} the new date with the business days subtracted
   * @throws {TypeError} 2 arguments required
   *
   * @example
   * // Substract 10 business days from 1 September 2014:
   * var result = subBusinessDays(new Date(2014, 8, 1), 10)
   * //=> Mon Aug 18 2014 00:00:00 (skipped weekend days)
   */
  
  export default function subBusinessDays(dirtyDate, dirtyAmount) {
    requiredArgs(2, arguments);
    var amount = toInteger(dirtyAmount);
    return addBusinessDays(dirtyDate, -amount);
  }