Function getEraFormat

packages/react-aria/src/calendar/utils.ts:41–43

(date: CalendarDate | undefined)

> = new WeakMap<CalendarState<CalendarSelectionMode> | RangeCalendarState, HookData>();

export function getEraFormat(date: CalendarDate | undefined): 'short' | undefined {
  return date?.calendar.identifier === 'gregory' && date.era === 'BC' ? 'short' : undefined;
}

export function useSelectedDateDescription(
  state: CalendarState<'single' | 'multiple'> | RangeCalendarState