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node_modules/date-fns/eachHourOfInterval.js

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+import { normalizeInterval } from "./_lib/normalizeInterval.js";
+import { constructFrom } from "./constructFrom.js";
+
+/**
+ * The {@link eachHourOfInterval} function options.
+ */
+
+/**
+ * The {@link eachHourOfInterval} function result type.
+ * Resolves to the appropriate date type based on inputs.
+ */
+
+/**
+ * @name eachHourOfInterval
+ * @category Interval Helpers
+ * @summary Return the array of hours within the specified time interval.
+ *
+ * @description
+ * Return the array of hours within the specified time interval.
+ *
+ * @typeParam IntervalType - Interval type.
+ * @typeParam Options - Options type.
+ *
+ * @param interval - The interval.
+ * @param options - An object with options.
+ *
+ * @returns The array with starts of hours from the hour of the interval start to the hour of the interval end
+ *
+ * @example
+ * // Each hour between 6 October 2014, 12:00 and 6 October 2014, 15:00
+ * const result = eachHourOfInterval({
+ *   start: new Date(2014, 9, 6, 12),
+ *   end: new Date(2014, 9, 6, 15)
+ * });
+ * //=> [
+ * //   Mon Oct 06 2014 12:00:00,
+ * //   Mon Oct 06 2014 13:00:00,
+ * //   Mon Oct 06 2014 14:00:00,
+ * //   Mon Oct 06 2014 15:00:00
+ * // ]
+ */
+export function eachHourOfInterval(interval, options) {
+  const { start, end } = normalizeInterval(options?.in, interval);
+
+  let reversed = +start > +end;
+  const endTime = reversed ? +start : +end;
+  const date = reversed ? end : start;
+  date.setMinutes(0, 0, 0);
+
+  let step = options?.step ?? 1;
+  if (!step) return [];
+  if (step < 0) {
+    step = -step;
+    reversed = !reversed;
+  }
+
+  const dates = [];
+
+  while (+date <= endTime) {
+    dates.push(constructFrom(start, date));
+    date.setHours(date.getHours() + step);
+  }
+
+  return reversed ? dates.reverse() : dates;
+}
+
+// Fallback for modularized imports:
+export default eachHourOfInterval;