index.js 1006 B

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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 setYear
  6. * @category Year Helpers
  7. * @summary Set the year to the given date.
  8. *
  9. * @description
  10. * Set the year to the given date.
  11. *
  12. * @param {Date|Number} date - the date to be changed
  13. * @param {Number} year - the year of the new date
  14. * @returns {Date} the new date with the year set
  15. * @throws {TypeError} 2 arguments required
  16. *
  17. * @example
  18. * // Set year 2013 to 1 September 2014:
  19. * const result = setYear(new Date(2014, 8, 1), 2013)
  20. * //=> Sun Sep 01 2013 00:00:00
  21. */
  22. export default function setYear(dirtyDate, dirtyYear) {
  23. requiredArgs(2, arguments);
  24. var date = toDate(dirtyDate);
  25. var year = toInteger(dirtyYear);
  26. // Check if date is Invalid Date because Date.prototype.setFullYear ignores the value of Invalid Date
  27. if (isNaN(date.getTime())) {
  28. return new Date(NaN);
  29. }
  30. date.setFullYear(year);
  31. return date;
  32. }