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40 lines
1.4 KiB
40 lines
1.4 KiB
3 years ago
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = getUTCISOWeekYear;
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var _index = _interopRequireDefault(require("../../toDate/index.js"));
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var _index2 = _interopRequireDefault(require("../startOfUTCISOWeek/index.js"));
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var _index3 = _interopRequireDefault(require("../requiredArgs/index.js"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// This function will be a part of public API when UTC function will be implemented.
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// See issue: https://github.com/date-fns/date-fns/issues/376
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function getUTCISOWeekYear(dirtyDate) {
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(0, _index3.default)(1, arguments);
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var date = (0, _index.default)(dirtyDate);
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var year = date.getUTCFullYear();
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var fourthOfJanuaryOfNextYear = new Date(0);
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fourthOfJanuaryOfNextYear.setUTCFullYear(year + 1, 0, 4);
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fourthOfJanuaryOfNextYear.setUTCHours(0, 0, 0, 0);
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var startOfNextYear = (0, _index2.default)(fourthOfJanuaryOfNextYear);
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var fourthOfJanuaryOfThisYear = new Date(0);
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fourthOfJanuaryOfThisYear.setUTCFullYear(year, 0, 4);
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fourthOfJanuaryOfThisYear.setUTCHours(0, 0, 0, 0);
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var startOfThisYear = (0, _index2.default)(fourthOfJanuaryOfThisYear);
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if (date.getTime() >= startOfNextYear.getTime()) {
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return year + 1;
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} else if (date.getTime() >= startOfThisYear.getTime()) {
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return year;
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} else {
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return year - 1;
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}
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}
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module.exports = exports.default;
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