v1.0 with SW PWA enabled

frontend/node_modules/date-fns/formatRFC3339.mjs

@@ -0,0 +1,83 @@
+import { isValid } from "./isValid.mjs";
+import { toDate } from "./toDate.mjs";
+import { addLeadingZeros } from "./_lib/addLeadingZeros.mjs";
+
+/**
+ * The {@link formatRFC3339} function options.
+ */
+
+/**
+ * @name formatRFC3339
+ * @category Common Helpers
+ * @summary Format the date according to the RFC 3339 standard (https://tools.ietf.org/html/rfc3339#section-5.6).
+ *
+ * @description
+ * Return the formatted date string in RFC 3339 format. Options may be passed to control the parts and notations of the 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).
+ *
+ * @param date - The original date
+ * @param options - An object with options.
+ *
+ * @returns The formatted date string
+ *
+ * @throws `date` must not be Invalid Date
+ *
+ * @example
+ * // Represent 18 September 2019 in RFC 3339 format:
+ * formatRFC3339(new Date(2019, 8, 18, 19, 0, 52))
+ * //=> '2019-09-18T19:00:52Z'
+ *
+ * @example
+ * // Represent 18 September 2019 in RFC 3339 format, 3 digits of second fraction
+ * formatRFC3339(new Date(2019, 8, 18, 19, 0, 52, 234), {
+ *   fractionDigits: 3
+ * })
+ * //=> '2019-09-18T19:00:52.234Z'
+ */
+export function formatRFC3339(date, options) {
+  const _date = toDate(date);
+
+  if (!isValid(_date)) {
+    throw new RangeError("Invalid time value");
+  }
+
+  const fractionDigits = options?.fractionDigits ?? 0;
+
+  const day = addLeadingZeros(_date.getDate(), 2);
+  const month = addLeadingZeros(_date.getMonth() + 1, 2);
+  const year = _date.getFullYear();
+
+  const hour = addLeadingZeros(_date.getHours(), 2);
+  const minute = addLeadingZeros(_date.getMinutes(), 2);
+  const second = addLeadingZeros(_date.getSeconds(), 2);
+
+  let fractionalSecond = "";
+  if (fractionDigits > 0) {
+    const milliseconds = _date.getMilliseconds();
+    const fractionalSeconds = Math.trunc(
+      milliseconds * Math.pow(10, fractionDigits - 3),
+    );
+    fractionalSecond = "." + addLeadingZeros(fractionalSeconds, fractionDigits);
+  }
+
+  let offset = "";
+  const tzOffset = _date.getTimezoneOffset();
+
+  if (tzOffset !== 0) {
+    const absoluteOffset = Math.abs(tzOffset);
+    const hourOffset = addLeadingZeros(Math.trunc(absoluteOffset / 60), 2);
+    const minuteOffset = addLeadingZeros(absoluteOffset % 60, 2);
+    // If less than 0, the sign is +, because it is ahead of time.
+    const sign = tzOffset < 0 ? "+" : "-";
+
+    offset = `${sign}${hourOffset}:${minuteOffset}`;
+  } else {
+    offset = "Z";
+  }
+
+  return `${year}-${month}-${day}T${hour}:${minute}:${second}${fractionalSecond}${offset}`;
+}
+
+// Fallback for modularized imports:
+export default formatRFC3339;