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

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = previousDay;
+var _index = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+var _index2 = _interopRequireDefault(require("../getDay/index.js"));
+var _index3 = _interopRequireDefault(require("../subDays/index.js"));
+/**
+ * @name previousDay
+ * @category Weekday Helpers
+ * @summary When is the previous day of the week?
+ *
+ * @description
+ * When is the previous day of the week? 0-6 the day of the week, 0 represents Sunday.
+ *
+ * @param {Date | number} date - the date to check
+ * @param {number} day - day of the week
+ * @returns {Date} - the date is the previous day of week
+ * @throws {TypeError} - 2 arguments required
+ *
+ * @example
+ * // When is the previous Monday before Mar, 20, 2020?
+ * const result = previousDay(new Date(2020, 2, 20), 1)
+ * //=> Mon Mar 16 2020 00:00:00
+ *
+ * @example
+ * // When is the previous Tuesday before Mar, 21, 2020?
+ * const result = previousDay(new Date(2020, 2, 21), 2)
+ * //=> Tue Mar 17 2020 00:00:00
+ */
+function previousDay(date, day) {
+  (0, _index.default)(2, arguments);
+  var delta = (0, _index2.default)(date) - day;
+  if (delta <= 0) delta += 7;
+  return (0, _index3.default)(date, delta);
+}
+module.exports = exports.default;