initial commit: scaffolding

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diff --git a/node_modules/date-fns/esm/getISOWeekYear/index.js b/node_modules/date-fns/esm/getISOWeekYear/index.js
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+import toDate from "../toDate/index.js";
+import startOfISOWeek from "../startOfISOWeek/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name getISOWeekYear
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Get the ISO week-numbering year of the given date.
+ *
+ * @description
+ * Get the ISO week-numbering year of the given date,
+ * which always starts 3 days before the year's first Thursday.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @param {Date|Number} date - the given date
+ * @returns {Number} the ISO week-numbering year
+ * @throws {TypeError} 1 argument required
+ *
+ * @example
+ * // Which ISO-week numbering year is 2 January 2005?
+ * const result = getISOWeekYear(new Date(2005, 0, 2))
+ * //=> 2004
+ */
+export default function getISOWeekYear(dirtyDate) {
+  requiredArgs(1, arguments);
+  var date = toDate(dirtyDate);
+  var year = date.getFullYear();
+  var fourthOfJanuaryOfNextYear = new Date(0);
+  fourthOfJanuaryOfNextYear.setFullYear(year + 1, 0, 4);
+  fourthOfJanuaryOfNextYear.setHours(0, 0, 0, 0);
+  var startOfNextYear = startOfISOWeek(fourthOfJanuaryOfNextYear);
+  var fourthOfJanuaryOfThisYear = new Date(0);
+  fourthOfJanuaryOfThisYear.setFullYear(year, 0, 4);
+  fourthOfJanuaryOfThisYear.setHours(0, 0, 0, 0);
+  var startOfThisYear = startOfISOWeek(fourthOfJanuaryOfThisYear);
+  if (date.getTime() >= startOfNextYear.getTime()) {
+    return year + 1;
+  } else if (date.getTime() >= startOfThisYear.getTime()) {
+    return year;
+  } else {
+    return year - 1;
+  }
+}
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