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Current File : /var/www/html/node_modules/date-fns/_lib/getUTCISOWeekYear/index.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getUTCISOWeekYear;

var _index = _interopRequireDefault(require("../../toDate/index.js"));

var _index2 = _interopRequireDefault(require("../requiredArgs/index.js"));

var _index3 = _interopRequireDefault(require("../startOfUTCISOWeek/index.js"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
function getUTCISOWeekYear(dirtyDate) {
  (0, _index2.default)(1, arguments);
  var date = (0, _index.default)(dirtyDate);
  var year = date.getUTCFullYear();
  var fourthOfJanuaryOfNextYear = new Date(0);
  fourthOfJanuaryOfNextYear.setUTCFullYear(year + 1, 0, 4);
  fourthOfJanuaryOfNextYear.setUTCHours(0, 0, 0, 0);
  var startOfNextYear = (0, _index3.default)(fourthOfJanuaryOfNextYear);
  var fourthOfJanuaryOfThisYear = new Date(0);
  fourthOfJanuaryOfThisYear.setUTCFullYear(year, 0, 4);
  fourthOfJanuaryOfThisYear.setUTCHours(0, 0, 0, 0);
  var startOfThisYear = (0, _index3.default)(fourthOfJanuaryOfThisYear);

  if (date.getTime() >= startOfNextYear.getTime()) {
    return year + 1;
  } else if (date.getTime() >= startOfThisYear.getTime()) {
    return year;
  } else {
    return year - 1;
  }
}

module.exports = exports.default;

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