Function useDateFormatter

packages/react-aria/src/i18n/useDateFormatter.ts:28–33

(options?: DateFormatterOptions)

 * @param options - Formatting options.
 */
export function useDateFormatter(options?: DateFormatterOptions): DateFormatter {
  // Reuse last options object if it is shallowly equal, which allows the useMemo result to also be reused.
  options = useDeepMemo(options ?? {}, isEqual);
  let {locale} = useLocale();
  return useMemo(() => new DateFormatter(locale, options), [locale, options]);
}

function isEqual(a: DateFormatterOptions, b: DateFormatterOptions) {
  if (a === b) {