index.js 1003 B

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  1. import addDays from "../addDays/index.js";
  2. import requiredArgs from "../_lib/requiredArgs/index.js";
  3. import toInteger from "../_lib/toInteger/index.js";
  4. /**
  5. * @name subDays
  6. * @category Day Helpers
  7. * @summary Subtract the specified number of days from the given date.
  8. *
  9. * @description
  10. * Subtract the specified number of days from the given date.
  11. *
  12. * @param {Date|Number} date - the date to be changed
  13. * @param {Number} amount - the amount of days to be subtracted. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.
  14. * @returns {Date} the new date with the days subtracted
  15. * @throws {TypeError} 2 arguments required
  16. *
  17. * @example
  18. * // Subtract 10 days from 1 September 2014:
  19. * const result = subDays(new Date(2014, 8, 1), 10)
  20. * //=> Fri Aug 22 2014 00:00:00
  21. */
  22. export default function subDays(dirtyDate, dirtyAmount) {
  23. requiredArgs(2, arguments);
  24. var amount = toInteger(dirtyAmount);
  25. return addDays(dirtyDate, -amount);
  26. }