function setDayOfYear(dirtyDate, dirtyDayOfYear) {
  __WEBPACK_IMPORTED_MODULE_2__lib_requiredArgs_index_js__["a" /* default */](2, arguments);
  var date = __WEBPACK_IMPORTED_MODULE_1__toDate_index_js__["a" /* default */](dirtyDate);
  var dayOfYear = __WEBPACK_IMPORTED_MODULE_0__lib_toInteger_index_js__["a" /* default */](dirtyDayOfYear);
  date.setMonth(0);
  date.setDate(dayOfYear);
  return date;
}
@name setISODay
@category Weekday Helpers
@summary Set the day of the ISO week to the given date.

@description
Set the day of the ISO week to the given date.
ISO week starts with Monday.
7 is the index of Sunday, 1 is the index of Monday etc.

### v2.0.0 breaking changes:

- [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).

@param {Date|Number} date - the date to be changed
@param {Number} day - the day of the ISO week of the new date
@returns {Date} the new date with the day of the ISO week set
@throws {TypeError} 2 arguments required

@example
// Set Sunday to 1 September 2014:
var result = setISODay(new Date(2014, 8, 1), 7)
//=> Sun Sep 07 2014 00:00:00