index.js 1.1 KB

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  1. import addMilliseconds from "../addMilliseconds/index.js";
  2. import requiredArgs from "../_lib/requiredArgs/index.js";
  3. import toInteger from "../_lib/toInteger/index.js";
  4. /**
  5. * @name subMilliseconds
  6. * @category Millisecond Helpers
  7. * @summary Subtract the specified number of milliseconds from the given date.
  8. *
  9. * @description
  10. * Subtract the specified number of milliseconds from the given date.
  11. *
  12. * @param {Date|Number} date - the date to be changed
  13. * @param {Number} amount - the amount of milliseconds 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 milliseconds subtracted
  15. * @throws {TypeError} 2 arguments required
  16. *
  17. * @example
  18. * // Subtract 750 milliseconds from 10 July 2014 12:45:30.000:
  19. * const result = subMilliseconds(new Date(2014, 6, 10, 12, 45, 30, 0), 750)
  20. * //=> Thu Jul 10 2014 12:45:29.250
  21. */
  22. export default function subMilliseconds(dirtyDate, dirtyAmount) {
  23. requiredArgs(2, arguments);
  24. var amount = toInteger(dirtyAmount);
  25. return addMilliseconds(dirtyDate, -amount);
  26. }