date-fns/_lib/startOfUTCISOWeekYear/index.js

Modern JavaScript date utility library

"use strict";

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

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

var _index2 = _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 startOfUTCISOWeekYear(dirtyDate) {
  if (arguments.length < 1) {
    throw new TypeError('1 argument required, but only ' + arguments.length + ' present');
  }

  var year = (0, _index.default)(dirtyDate);
  var fourthOfJanuary = new Date(0);
  fourthOfJanuary.setUTCFullYear(year, 0, 4);
  fourthOfJanuary.setUTCHours(0, 0, 0, 0);
  var date = (0, _index2.default)(fourthOfJanuary);
  return date;
}

module.exports = exports.default;