如何使用 JavaScript 取得使用者的作業系統詳細資訊？

function getOSDetails(ua) {
  // Define regular expressions for common OSes
  const osRegexps = {
    Windows: /Windows NT (\d+)\.(\d+)/,
    Mac: /Mac OS X (\d+)_(\d+)_?(\d+)?/,
    iOS: /iPhone OS (\d+)_(\d+)_?(\d+)?/,
    Android: /Android (\d+)\.(\d+)/,
    Linux: /Linux/
  };

  // Search for matches against each OS regexp
  for (const os in osRegexps) {
    const match = osRegexps[os].exec(ua);
    if (match) {
      return {
        name: os,
        version: match[1] + "." + match[2] + "." + (match[3] || "")
      };
    }
  }

  return {
    name: "Unknown",
    version: "Unknown"
  };
}