index.js 1.3 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = getISODay;
  6. var _index = _interopRequireDefault(require("../toDate/index.js"));
  7. var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
  8. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  9. /**
  10. * @name getISODay
  11. * @category Weekday Helpers
  12. * @summary Get the day of the ISO week of the given date.
  13. *
  14. * @description
  15. * Get the day of the ISO week of the given date,
  16. * which is 7 for Sunday, 1 for Monday etc.
  17. *
  18. * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
  19. *
  20. * ### v2.0.0 breaking changes:
  21. *
  22. * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
  23. *
  24. * @param {Date|Number} date - the given date
  25. * @returns {Number} the day of ISO week
  26. * @throws {TypeError} 1 argument required
  27. *
  28. * @example
  29. * // Which day of the ISO week is 26 February 2012?
  30. * const result = getISODay(new Date(2012, 1, 26))
  31. * //=> 7
  32. */
  33. function getISODay(dirtyDate) {
  34. (0, _index2.default)(1, arguments);
  35. var date = (0, _index.default)(dirtyDate);
  36. var day = date.getDay();
  37. if (day === 0) {
  38. day = 7;
  39. }
  40. return day;
  41. }
  42. module.exports = exports.default;