Function formatRFC7231

pkgs/core/src/formatRFC7231/index.ts:43–61

(date: DateArg<Date> & {})

 * //=> 'Wed, 18 Sep 2019 19:00:52 GMT'
 */
export function formatRFC7231(date: DateArg<Date> & {}): string {
  const _date = toDate(date);

  if (!isValid(_date)) {
    throw new RangeError("Invalid time value");
  }

  const dayName = days[_date.getUTCDay()];
  const dayOfMonth = addLeadingZeros(_date.getUTCDate(), 2);
  const monthName = months[_date.getUTCMonth()];
  const year = _date.getUTCFullYear();

  const hour = addLeadingZeros(_date.getUTCHours(), 2);
  const minute = addLeadingZeros(_date.getUTCMinutes(), 2);
  const second = addLeadingZeros(_date.getUTCSeconds(), 2);

  // Result variables.
  return `${dayName}, ${dayOfMonth} ${monthName} ${year} ${hour}:${minute}:${second} GMT`;
}