Function parseCalendarFirstDay

src/settings/tabs/appearanceTab.ts:40–43

(value: string, fallback: CalendarFirstDay)

}

function parseCalendarFirstDay(value: string, fallback: CalendarFirstDay): CalendarFirstDay {
	const parsed = Number.parseInt(value, 10);
	return CALENDAR_FIRST_DAYS.find((day) => day === parsed) ?? fallback;
}

function isCalendarSlotDuration(value: string): value is CalendarSlotDuration {
	return CALENDAR_SLOT_DURATIONS.some((duration) => duration === value);