0-9a-z]+)/g);
      parts = parts.reverse();
      const validVersionIndex = parts.findIndex(
        part => parseInt(part, 10) !== 0
      );
      if (validVersionIndex !== -1) {
        parts = parts.splice(validVersionIndex);
        for (let i = 0; i < minMinorVersionCount + 1 - parts.length; i++) {
          parts.unshift(0);
        }
      }
      version = parts.reverse().join(".");
    }

    return { name, version };
  }

  return null;
}

function parseUserAgent(ua) {
  return {
    browser: detect(ua, BROWSERS),
    os: detect(ua, OSES),
  };
}

module.exports = { parseUserAgent };
PK