index.js 2.7 KB

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  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
  3. Object.defineProperty(exports, "__esModule", {
  4. value: true
  5. });
  6. exports.default = getUTCWeekYear;
  7. var _index = _interopRequireDefault(require("../../toDate/index.js"));
  8. var _index2 = _interopRequireDefault(require("../requiredArgs/index.js"));
  9. var _index3 = _interopRequireDefault(require("../startOfUTCWeek/index.js"));
  10. var _index4 = _interopRequireDefault(require("../toInteger/index.js"));
  11. var _index5 = require("../defaultOptions/index.js");
  12. function getUTCWeekYear(dirtyDate, options) {
  13. var _ref, _ref2, _ref3, _options$firstWeekCon, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2;
  14. (0, _index2.default)(1, arguments);
  15. var date = (0, _index.default)(dirtyDate);
  16. var year = date.getUTCFullYear();
  17. var defaultOptions = (0, _index5.getDefaultOptions)();
  18. var firstWeekContainsDate = (0, _index4.default)((_ref = (_ref2 = (_ref3 = (_options$firstWeekCon = options === null || options === void 0 ? void 0 : options.firstWeekContainsDate) !== null && _options$firstWeekCon !== void 0 ? _options$firstWeekCon : options === null || options === void 0 ? void 0 : (_options$locale = options.locale) === null || _options$locale === void 0 ? void 0 : (_options$locale$optio = _options$locale.options) === null || _options$locale$optio === void 0 ? void 0 : _options$locale$optio.firstWeekContainsDate) !== null && _ref3 !== void 0 ? _ref3 : defaultOptions.firstWeekContainsDate) !== null && _ref2 !== void 0 ? _ref2 : (_defaultOptions$local = defaultOptions.locale) === null || _defaultOptions$local === void 0 ? void 0 : (_defaultOptions$local2 = _defaultOptions$local.options) === null || _defaultOptions$local2 === void 0 ? void 0 : _defaultOptions$local2.firstWeekContainsDate) !== null && _ref !== void 0 ? _ref : 1);
  19. // Test if weekStartsOn is between 1 and 7 _and_ is not NaN
  20. if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) {
  21. throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively');
  22. }
  23. var firstWeekOfNextYear = new Date(0);
  24. firstWeekOfNextYear.setUTCFullYear(year + 1, 0, firstWeekContainsDate);
  25. firstWeekOfNextYear.setUTCHours(0, 0, 0, 0);
  26. var startOfNextYear = (0, _index3.default)(firstWeekOfNextYear, options);
  27. var firstWeekOfThisYear = new Date(0);
  28. firstWeekOfThisYear.setUTCFullYear(year, 0, firstWeekContainsDate);
  29. firstWeekOfThisYear.setUTCHours(0, 0, 0, 0);
  30. var startOfThisYear = (0, _index3.default)(firstWeekOfThisYear, options);
  31. if (date.getTime() >= startOfNextYear.getTime()) {
  32. return year + 1;
  33. } else if (date.getTime() >= startOfThisYear.getTime()) {
  34. return year;
  35. } else {
  36. return year - 1;
  37. }
  38. }
  39. module.exports = exports.default;