From 38acabfa6089ab8ac469c12b5f55022fb96935e5 Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Mon, 23 Aug 2021 16:46:06 -0300
Subject: added web vendors

---
 date-fns/src/startOfYear/index.ts | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 date-fns/src/startOfYear/index.ts

(limited to 'date-fns/src/startOfYear/index.ts')

diff --git a/date-fns/src/startOfYear/index.ts b/date-fns/src/startOfYear/index.ts
new file mode 100644
index 0000000..b72be94
--- /dev/null
+++ b/date-fns/src/startOfYear/index.ts
@@ -0,0 +1,34 @@
+import toDate from '../toDate/index'
+import requiredArgs from '../_lib/requiredArgs/index'
+
+/**
+ * @name startOfYear
+ * @category Year Helpers
+ * @summary Return the start of a year for the given date.
+ *
+ * @description
+ * Return the start of a year for the given date.
+ * The result will be in the local timezone.
+ *
+ * ### v2.0.0 breaking changes:
+ *
+ * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
+ *
+ * @param {Date|Number} date - the original date
+ * @returns {Date} the start of a year
+ * @throws {TypeError} 1 argument required
+ *
+ * @example
+ * // The start of a year for 2 September 2014 11:55:00:
+ * const result = startOfYear(new Date(2014, 8, 2, 11, 55, 00))
+ * //=> Wed Jan 01 2014 00:00:00
+ */
+export default function startOfYear(dirtyDate: Date | number): Date {
+  requiredArgs(1, arguments)
+
+  const cleanDate = toDate(dirtyDate)
+  const date = new Date(0)
+  date.setFullYear(cleanDate.getFullYear(), 0, 1)
+  date.setHours(0, 0, 0, 0)
+  return date
+}
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