index.js 761 B

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  1. import requiredArgs from "../_lib/requiredArgs/index.js";
  2. import { daysInWeek } from "../constants/index.js";
  3. /**
  4. * @name daysToWeeks
  5. * @category Conversion Helpers
  6. * @summary Convert days to weeks.
  7. *
  8. * @description
  9. * Convert a number of days to a full number of weeks.
  10. *
  11. * @param {number} days - number of days to be converted
  12. *
  13. * @returns {number} the number of days converted in weeks
  14. * @throws {TypeError} 1 argument required
  15. *
  16. * @example
  17. * // Convert 14 days to weeks:
  18. * const result = daysToWeeks(14)
  19. * //=> 2
  20. *
  21. * @example
  22. * // It uses floor rounding:
  23. * const result = daysToWeeks(13)
  24. * //=> 1
  25. */
  26. export default function daysToWeeks(days) {
  27. requiredArgs(1, arguments);
  28. var weeks = days / daysInWeek;
  29. return Math.floor(weeks);
  30. }