📝 Commit Details:

backend/node_modules/date-fns/setDefaultOptions.js

@@ -0,0 +1,78 @@
+import {
+  getDefaultOptions,
+  setDefaultOptions as setInternalDefaultOptions,
+} from "./_lib/defaultOptions.js";
+
+/**
+ * @name setDefaultOptions
+ * @category Common Helpers
+ * @summary Set default options including locale.
+ * @pure false
+ *
+ * @description
+ * Sets the defaults for
+ * `options.locale`, `options.weekStartsOn` and `options.firstWeekContainsDate`
+ * arguments for all functions.
+ *
+ * @param options - An object with options
+ *
+ * @example
+ * // Set global locale:
+ * import { es } from 'date-fns/locale'
+ * setDefaultOptions({ locale: es })
+ * const result = format(new Date(2014, 8, 2), 'PPPP')
+ * //=> 'martes, 2 de septiembre de 2014'
+ *
+ * @example
+ * // Start of the week for 2 September 2014:
+ * const result = startOfWeek(new Date(2014, 8, 2))
+ * //=> Sun Aug 31 2014 00:00:00
+ *
+ * @example
+ * // Start of the week for 2 September 2014,
+ * // when we set that week starts on Monday by default:
+ * setDefaultOptions({ weekStartsOn: 1 })
+ * const result = startOfWeek(new Date(2014, 8, 2))
+ * //=> Mon Sep 01 2014 00:00:00
+ *
+ * @example
+ * // Manually set options take priority over default options:
+ * setDefaultOptions({ weekStartsOn: 1 })
+ * const result = startOfWeek(new Date(2014, 8, 2), { weekStartsOn: 0 })
+ * //=> Sun Aug 31 2014 00:00:00
+ *
+ * @example
+ * // Remove the option by setting it to `undefined`:
+ * setDefaultOptions({ weekStartsOn: 1 })
+ * setDefaultOptions({ weekStartsOn: undefined })
+ * const result = startOfWeek(new Date(2014, 8, 2))
+ * //=> Sun Aug 31 2014 00:00:00
+ */
+export function setDefaultOptions(options) {
+  const result = {};
+  const defaultOptions = getDefaultOptions();
+
+  for (const property in defaultOptions) {
+    if (Object.prototype.hasOwnProperty.call(defaultOptions, property)) {
+      // [TODO] I challenge you to fix the type
+      result[property] = defaultOptions[property];
+    }
+  }
+
+  for (const property in options) {
+    if (Object.prototype.hasOwnProperty.call(options, property)) {
+      if (options[property] === undefined) {
+        // [TODO] I challenge you to fix the type
+        delete result[property];
+      } else {
+        // [TODO] I challenge you to fix the type
+        result[property] = options[property];
+      }
+    }
+  }
+
+  setInternalDefaultOptions(result);
+}
+
+// Fallback for modularized imports:
+export default setDefaultOptions;