如果你列出所有的window.navigator使用

console.log(navigator);

你會看到這樣的事情

# platform = Win32

# appCodeName = Mozilla

# appName = Netscape

# appVersion = 5.0 (Windows; en-US)

# language = en-US

# mimeTypes = [object MimeTypeArray]

# oscpu = Windows NT 5.1

# vendor = Firefox

# vendorSub = 1.0.7

# product = Gecko

# productSub = 20050915

# plugins = [object PluginArray]

# securityPolicy =

# userAgent = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7

# cookieEnabled = true

# javaEnabled = function javaEnabled() { [native code] }

# taintEnabled = function taintEnabled() { [native code] }

# preference = function preference() { [native code] }

請注意oscpu屬性提供Windows版本。此外，你應該知道：

'Windows 3.11' => 'Win16',

'Windows 95' => '(Windows 95)|(Win95)|(Windows_95)',

'Windows 98' => '(Windows 98)|(Win98)',

'Windows 2000' => '(Windows NT 5.0)|(Windows 2000)',

'Windows XP' => '(Windows NT 5.1)|(Windows XP)',

'Windows Server 2003' => '(Windows NT 5.2)',

'Windows Vista' => '(Windows NT 6.0)',

'Windows 7' => '(Windows NT 6.1)',

'Windows 8' => '(Windows NT 6.2)|(WOW64)',

'Windows 10' => '(Windows 10.0)|(Windows NT 10.0)',

'Windows NT 4.0' => '(Windows NT 4.0)|(WinNT4.0)|(WinNT)|(Windows NT)',

'Windows ME' => 'Windows ME',

'Open BSD' => 'OpenBSD',

'Sun OS' => 'SunOS',

'Linux' => '(Linux)|(X11)',

'Mac OS' => '(Mac_PowerPC)|(Macintosh)',

'QNX' => 'QNX',

'BeOS' => 'BeOS',

'OS/2' => 'OS/2',

'Search Bot'=>'(nuhk)|(Googlebot)|(Yammybot)|(Openbot)|(Slurp)|(MSNBot)|(Ask Jeeves/Teoma)|(ia_archiver)'

var OSName = "Unknown";

if (window.navigator.userAgent.indexOf("Windows NT 10.0")!= -1) OSName="Windows 10";

if (window.navigator.userAgent.indexOf("Windows NT 6.2") != -1) OSName="Windows 8";

if (window.navigator.userAgent.indexOf("Windows NT 6.1") != -1) OSName="Windows 7";

if (window.navigator.userAgent.indexOf("Windows NT 6.0") != -1) OSName="Windows Vista";

if (window.navigator.userAgent.indexOf("Windows NT 5.1") != -1) OSName="Windows XP";

if (window.navigator.userAgent.indexOf("Windows NT 5.0") != -1) OSName="Windows 2000";

if (window.navigator.userAgent.indexOf("Mac")            != -1) OSName="Mac/iOS";

if (window.navigator.userAgent.indexOf("X11")            != -1) OSName="UNIX";

if (window.navigator.userAgent.indexOf("Linux")          != -1) OSName="Linux";