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+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name eachMonthOfInterval
+ * @category Interval Helpers
+ * @summary Return the array of months within the specified time interval.
+ *
+ * @description
+ * Return the array of months within the specified time interval.
+ *
+ * @param {Interval} interval - the interval. See [Interval]{@link https://date-fns.org/docs/Interval}
+ * @returns {Date[]} the array with starts of months from the month of the interval start to the month of the interval end
+ * @throws {TypeError} 1 argument required
+ * @throws {RangeError} The start of an interval cannot be after its end
+ * @throws {RangeError} Date in interval cannot be `Invalid Date`
+ *
+ * @example
+ * // Each month between 6 February 2014 and 10 August 2014:
+ * const result = eachMonthOfInterval({
+ * start: new Date(2014, 1, 6),
+ * end: new Date(2014, 7, 10)
+ * })
+ * //=> [
+ * // Sat Feb 01 2014 00:00:00,
+ * // Sat Mar 01 2014 00:00:00,
+ * // Tue Apr 01 2014 00:00:00,
+ * // Thu May 01 2014 00:00:00,
+ * // Sun Jun 01 2014 00:00:00,
+ * // Tue Jul 01 2014 00:00:00,
+ * // Fri Aug 01 2014 00:00:00
+ * // ]
+ */
+export default function eachMonthOfInterval(dirtyInterval) {
+ requiredArgs(1, arguments);
+ var interval = dirtyInterval || {};
+ var startDate = toDate(interval.start);
+ var endDate = toDate(interval.end);
+ var endTime = endDate.getTime();
+ var dates = [];
+
+ // Throw an exception if start date is after end date or if any date is `Invalid Date`
+ if (!(startDate.getTime() <= endTime)) {
+ throw new RangeError('Invalid interval');
+ }
+ var currentDate = startDate;
+ currentDate.setHours(0, 0, 0, 0);
+ currentDate.setDate(1);
+ while (currentDate.getTime() <= endTime) {
+ dates.push(toDate(currentDate));
+ currentDate.setMonth(currentDate.getMonth() + 1);
+ }
+ return dates;
+} \ No newline at end of file
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