Method valueCallback

pkgs/core/src/parse/_lib/parsers/YearParser.ts:28–31

(year: number)

    match: Match,
  ): ParseResult<YearParserValue> {
    const valueCallback = (year: number) => ({
      year,
      isTwoDigitYear: token === "yy",
    });

    switch (token) {
      case "y":