1 files changed, 28 insertions, 0 deletions
diff --git a/node_modules/date-fns/esm/startOfDecade/index.js b/node_modules/date-fns/esm/startOfDecade/index.js
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+++ b/node_modules/date-fns/esm/startOfDecade/index.js
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+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @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.
+ *
+ * @param {Date|Number} date - the original date
+ * @returns {Date} the start of a decade
+ * @throws {TypeError} 1 argument required
+ *
+ * @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
+ */
+export default function startOfDecade(dirtyDate) {
+  requiredArgs(1, arguments);
+  var date = toDate(dirtyDate);
+  var year = date.getFullYear();
+  var decade = Math.floor(year / 10) * 10;
+  date.setFullYear(decade, 0, 1);
+  date.setHours(0, 0, 0, 0);
+  return date;
+}
+\ No newline at end of file