Function parseYear

components/dash-core-components/src/utils/calendar/helpers.ts:264–273

(yearStr: string)

 * Example (when current year is 2025): 00-74 → 2000-2074, 75-99 → 1975-1999
 */
export function parseYear(yearStr: string): number | undefined {
    const formats = ['yy', 'yyyy'];
    for (const fmt of formats) {
        const parsed = parse(yearStr.trim(), fmt, new Date());
        if (isValid(parsed)) {
            return parsed.getFullYear();
        }
    }
    return undefined;
}