Function strAsDate

components/dash-core-components/src/utils/calendar/helpers.ts:94–115

(
    dateStr?: string,
    formatStr?: string
)

}

export function strAsDate(
    dateStr?: string,
    formatStr?: string
): Date | undefined {
    if (!dateStr) {
        return undefined;
    }

    const locale = getUserLocale();
    let parsed = formatStr
        ? parse(dateStr, convertFormatTokens(formatStr), new Date(), {
              locale,
          })
        : parseISO(dateStr);

    // Fallback to native Date constructor for non-ISO formats
    if (!isValid(parsed)) {
        parsed = new Date(dateStr);
    }

    return isValid(parsed) ? startOfDay(parsed) : undefined;
}

type AnyDayFormat = string | Date | DatePickerSingleProps['date'];
export function isSameDay(day1?: AnyDayFormat, day2?: AnyDayFormat): boolean {