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  1. import toInteger from '../_lib/toInteger/index.js';
  2. import toDate from '../toDate/index.js';
  3. import requiredArgs from '../_lib/requiredArgs/index.js';
  4. /**
  5. * @name setDate
  6. * @category Day Helpers
  7. * @summary Set the day of the month to the given date.
  8. *
  9. * @description
  10. * Set the day of the month to the given date.
  11. *
  12. * ### v2.0.0 breaking changes:
  13. *
  14. * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
  15. *
  16. * @param {Date|Number} date - the date to be changed
  17. * @param {Number} dayOfMonth - the day of the month of the new date
  18. * @returns {Date} the new date with the day of the month set
  19. * @throws {TypeError} 2 arguments required
  20. *
  21. * @example
  22. * // Set the 30th day of the month to 1 September 2014:
  23. * var result = setDate(new Date(2014, 8, 1), 30)
  24. * //=> Tue Sep 30 2014 00:00:00
  25. */
  26. export default function setDate(dirtyDate, dirtyDayOfMonth) {
  27. requiredArgs(2, arguments);
  28. var date = toDate(dirtyDate);
  29. var dayOfMonth = toInteger(dirtyDayOfMonth);
  30. date.setDate(dayOfMonth);
  31. return date;
  32. }