增加admin管理帐号和项目的界面--初步实现

frontend/node_modules/date-fns/previousThursday.js

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+"use strict";
+exports.previousThursday = previousThursday;
+var _index = require("./previousDay.js");
+
+/**
+ * @name previousThursday
+ * @category Weekday Helpers
+ * @summary When is the previous Thursday?
+ *
+ * @description
+ * When is the previous Thursday?
+ *
+ * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
+ *
+ * @param date - The date to start counting from
+ *
+ * @returns The previous Thursday
+ *
+ * @example
+ * // When is the previous Thursday before Jun, 18, 2021?
+ * const result = previousThursday(new Date(2021, 5, 18))
+ * //=> Thu June 17 2021 00:00:00
+ */
+function previousThursday(date) {
+  return (0, _index.previousDay)(date, 4);
+}