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backend/node_modules/date-fns/differenceInBusinessDays/index.d.ts

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+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+import { differenceInBusinessDays } from 'date-fns'
+export default differenceInBusinessDays

backend/node_modules/date-fns/differenceInBusinessDays/index.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = differenceInBusinessDays;
+var _index = _interopRequireDefault(require("../addDays/index.js"));
+var _index2 = _interopRequireDefault(require("../differenceInCalendarDays/index.js"));
+var _index3 = _interopRequireDefault(require("../isSameDay/index.js"));
+var _index4 = _interopRequireDefault(require("../isValid/index.js"));
+var _index5 = _interopRequireDefault(require("../isWeekend/index.js"));
+var _index6 = _interopRequireDefault(require("../toDate/index.js"));
+var _index7 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+var _index8 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
+/**
+ * @name differenceInBusinessDays
+ * @category Day Helpers
+ * @summary Get the number of business days between the given dates.
+ *
+ * @description
+ * Get the number of business day periods between the given dates.
+ * Business days being days that arent in the weekend.
+ * Like `differenceInCalendarDays`, the function removes the times from
+ * the dates before calculating the difference.
+ *
+ * @param {Date|Number} dateLeft - the later date
+ * @param {Date|Number} dateRight - the earlier date
+ * @returns {Number} the number of business days
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // How many business days are between
+ * // 10 January 2014 and 20 July 2014?
+ * const result = differenceInBusinessDays(
+ *   new Date(2014, 6, 20),
+ *   new Date(2014, 0, 10)
+ * )
+ * //=> 136
+ *
+ * // How many business days are between
+ * // 30 November 2021 and 1 November 2021?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 30),
+ *   new Date(2021, 10, 1)
+ * )
+ * //=> 21
+ *
+ * // How many business days are between
+ * // 1 November 2021 and 1 December 2021?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 1),
+ *   new Date(2021, 11, 1)
+ * )
+ * //=> -22
+ *
+ * // How many business days are between
+ * // 1 November 2021 and 1 November 2021 ?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 1),
+ *   new Date(2021, 10, 1)
+ * )
+ * //=> 0
+ */
+function differenceInBusinessDays(dirtyDateLeft, dirtyDateRight) {
+  (0, _index7.default)(2, arguments);
+  var dateLeft = (0, _index6.default)(dirtyDateLeft);
+  var dateRight = (0, _index6.default)(dirtyDateRight);
+  if (!(0, _index4.default)(dateLeft) || !(0, _index4.default)(dateRight)) return NaN;
+  var calendarDifference = (0, _index2.default)(dateLeft, dateRight);
+  var sign = calendarDifference < 0 ? -1 : 1;
+  var weeks = (0, _index8.default)(calendarDifference / 7);
+  var result = weeks * 5;
+  dateRight = (0, _index.default)(dateRight, weeks * 7);
+
+  // the loop below will run at most 6 times to account for the remaining days that don't makeup a full week
+  while (!(0, _index3.default)(dateLeft, dateRight)) {
+    // sign is used to account for both negative and positive differences
+    result += (0, _index5.default)(dateRight) ? 0 : sign;
+    dateRight = (0, _index.default)(dateRight, sign);
+  }
+  return result === 0 ? 0 : result;
+}
+module.exports = exports.default;

backend/node_modules/date-fns/differenceInBusinessDays/index.js.flow

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+// @flow
+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+export type Interval = {
+  start: Date | number,
+  end: Date | number,
+}
+
+export type Locale = {
+  code?: string,
+  formatDistance?: (...args: Array<any>) => any,
+  formatRelative?: (...args: Array<any>) => any,
+  localize?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  formatLong?: {
+    date: (...args: Array<any>) => any,
+    time: (...args: Array<any>) => any,
+    dateTime: (...args: Array<any>) => any,
+  },
+  match?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  options?: {
+    weekStartsOn?: 0 | 1 | 2 | 3 | 4 | 5 | 6,
+    firstWeekContainsDate?: 1 | 2 | 3 | 4 | 5 | 6 | 7,
+  },
+}
+
+export type Duration = {
+  years?: number,
+  months?: number,
+  weeks?: number,
+  days?: number,
+  hours?: number,
+  minutes?: number,
+  seconds?: number,
+}
+
+export type Day = 0 | 1 | 2 | 3 | 4 | 5 | 6
+
+declare module.exports: (
+  dateLeft: Date | number,
+  dateRight: Date | number
+) => number

backend/node_modules/date-fns/differenceInBusinessDays/package.json

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+{
+  "sideEffects": false,
+  "module": "../esm/differenceInBusinessDays/index.js",
+  "typings": "../typings.d.ts"
+}