function compareDesc(dirtyDateLeft, dirtyDateRight) {
  __WEBPACK_IMPORTED_MODULE_1__lib_requiredArgs_index_js__["a" /* default */](2, arguments);
  var dateLeft = __WEBPACK_IMPORTED_MODULE_0__toDate_index_js__["a" /* default */](dirtyDateLeft);
  var dateRight = __WEBPACK_IMPORTED_MODULE_0__toDate_index_js__["a" /* default */](dirtyDateRight);
  var diff = dateLeft.getTime() - dateRight.getTime();

  if (diff > 0) {
    return -1;
  } else if (diff < 0) {
    return 1; // Return 0 if diff is 0; return NaN if diff is NaN
  } else {
    return diff;
  }
}
@name differenceInBusinessDays
@category Day Helpers
@summary Get the number of business days between the given dates.

@description
Get the number of business day periods between the given dates.
Business days being days that arent in the weekend.
Like `differenceInCalendarDays`, the function removes the times from
the dates before calculating the difference.

@param {Date|Number} dateLeft - the later date
@param {Date|Number} dateRight - the earlier date
@returns {Number} the number of business days
@throws {TypeError} 2 arguments required

@example
// How many business days are between
// 10 January 2014 and 20 July 2014?
var result = differenceInBusinessDays(
  new Date(2014, 6, 20),
  new Date(2014, 0, 10)
)
//=> 136