registration

frontend/style/node_modules/date-fns/startOfDecade.cjs

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+"use strict";
+exports.startOfDecade = startOfDecade;
+var _index = require("./toDate.cjs");
+
+/**
+ * The {@link startOfDecade} options.
+ */
+
+/**
+ * @name startOfDecade
+ * @category Decade Helpers
+ * @summary Return the start of a decade for the given date.
+ *
+ * @description
+ * Return the start of a decade for the given date.
+ *
+ * @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).
+ * @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.
+ *
+ * @param date - The original date
+ * @param options - An object with options
+ *
+ * @returns The start of a decade
+ *
+ * @example
+ * // The start of a decade for 21 October 2015 00:00:00:
+ * const result = startOfDecade(new Date(2015, 9, 21, 00, 00, 00))
+ * //=> Jan 01 2010 00:00:00
+ */
+function startOfDecade(date, options) {
+  // TODO: Switch to more technical definition in of decades that start with 1
+  // end with 0. I.e. 2001-2010 instead of current 2000-2009. It's a breaking
+  // change, so it can only be done in 4.0.
+  const _date = (0, _index.toDate)(date, options?.in);
+  const year = _date.getFullYear();
+  const decade = Math.floor(year / 10) * 10;
+  _date.setFullYear(decade, 0, 1);
+  _date.setHours(0, 0, 0, 0);
+  return _date;
+}