Bagaimana menemukan versi sistem operasi menggunakan JavaScript?

Bagaimana saya bisa menemukan nama OS dan versi OS menggunakan JavaScript?

Jika Anda mencantumkan semua window.navigatorproperti menggunakan

console.log(navigator);

Anda akan melihat sesuatu seperti ini

# 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] }

Perhatikan bahwa oscpuatribut memberi Anda versi Windows. Anda juga harus tahu bahwa:

'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)'

Saya mulai menulis Script untuk membaca OS dan versi browser yang dapat diuji pada Fiddle . Jangan ragu untuk menggunakan dan memperluas.

/**
 * JavaScript Client Detection
 * (C) viazenetti GmbH (Christian Ludwig)
 */
(function (window) {
    {
        var unknown = '-';

        // screen
        var screenSize = '';
        if (screen.width) {
            width = (screen.width) ? screen.width : '';
            height = (screen.height) ? screen.height : '';
            screenSize += '' + width + " x " + height;
        }

        // browser
        var nVer = navigator.appVersion;
        var nAgt = navigator.userAgent;
        var browser = navigator.appName;
        var version = '' + parseFloat(navigator.appVersion);
        var majorVersion = parseInt(navigator.appVersion, 10);
        var nameOffset, verOffset, ix;

        // Opera
        if ((verOffset = nAgt.indexOf('Opera')) != -1) {
            browser = 'Opera';
            version = nAgt.substring(verOffset + 6);
            if ((verOffset = nAgt.indexOf('Version')) != -1) {
                version = nAgt.substring(verOffset + 8);
            }
        }
        // Opera Next
        if ((verOffset = nAgt.indexOf('OPR')) != -1) {
            browser = 'Opera';
            version = nAgt.substring(verOffset + 4);
        }
        // Edge
        else if ((verOffset = nAgt.indexOf('Edge')) != -1) {
            browser = 'Microsoft Edge';
            version = nAgt.substring(verOffset + 5);
        }
        // MSIE
        else if ((verOffset = nAgt.indexOf('MSIE')) != -1) {
            browser = 'Microsoft Internet Explorer';
            version = nAgt.substring(verOffset + 5);
        }
        // Chrome
        else if ((verOffset = nAgt.indexOf('Chrome')) != -1) {
            browser = 'Chrome';
            version = nAgt.substring(verOffset + 7);
        }
        // Safari
        else if ((verOffset = nAgt.indexOf('Safari')) != -1) {
            browser = 'Safari';
            version = nAgt.substring(verOffset + 7);
            if ((verOffset = nAgt.indexOf('Version')) != -1) {
                version = nAgt.substring(verOffset + 8);
            }
        }
        // Firefox
        else if ((verOffset = nAgt.indexOf('Firefox')) != -1) {
            browser = 'Firefox';
            version = nAgt.substring(verOffset + 8);
        }
        // MSIE 11+
        else if (nAgt.indexOf('Trident/') != -1) {
            browser = 'Microsoft Internet Explorer';
            version = nAgt.substring(nAgt.indexOf('rv:') + 3);
        }
        // Other browsers
        else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
            browser = nAgt.substring(nameOffset, verOffset);
            version = nAgt.substring(verOffset + 1);
            if (browser.toLowerCase() == browser.toUpperCase()) {
                browser = navigator.appName;
            }
        }
        // trim the version string
        if ((ix = version.indexOf(';')) != -1) version = version.substring(0, ix);
        if ((ix = version.indexOf(' ')) != -1) version = version.substring(0, ix);
        if ((ix = version.indexOf(')')) != -1) version = version.substring(0, ix);

        majorVersion = parseInt('' + version, 10);
        if (isNaN(majorVersion)) {
            version = '' + parseFloat(navigator.appVersion);
            majorVersion = parseInt(navigator.appVersion, 10);
        }

        // mobile version
        var mobile = /Mobile|mini|Fennec|Android|iP(ad|od|hone)/.test(nVer);

        // cookie
        var cookieEnabled = (navigator.cookieEnabled) ? true : false;

        if (typeof navigator.cookieEnabled == 'undefined' && !cookieEnabled) {
            document.cookie = 'testcookie';
            cookieEnabled = (document.cookie.indexOf('testcookie') != -1) ? true : false;
        }

        // system
        var os = unknown;
        var clientStrings = [
            {s:'Windows 10', r:/(Windows 10.0|Windows NT 10.0)/},
            {s:'Windows 8.1', r:/(Windows 8.1|Windows NT 6.3)/},
            {s:'Windows 8', r:/(Windows 8|Windows NT 6.2)/},
            {s:'Windows 7', r:/(Windows 7|Windows NT 6.1)/},
            {s:'Windows Vista', r:/Windows NT 6.0/},
            {s:'Windows Server 2003', r:/Windows NT 5.2/},
            {s:'Windows XP', r:/(Windows NT 5.1|Windows XP)/},
            {s:'Windows 2000', r:/(Windows NT 5.0|Windows 2000)/},
            {s:'Windows ME', r:/(Win 9x 4.90|Windows ME)/},
            {s:'Windows 98', r:/(Windows 98|Win98)/},
            {s:'Windows 95', r:/(Windows 95|Win95|Windows_95)/},
            {s:'Windows NT 4.0', r:/(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/},
            {s:'Windows CE', r:/Windows CE/},
            {s:'Windows 3.11', r:/Win16/},
            {s:'Android', r:/Android/},
            {s:'Open BSD', r:/OpenBSD/},
            {s:'Sun OS', r:/SunOS/},
            {s:'Chrome OS', r:/CrOS/},
            {s:'Linux', r:/(Linux|X11(?!.*CrOS))/},
            {s:'iOS', r:/(iPhone|iPad|iPod)/},
            {s:'Mac OS X', r:/Mac OS X/},
            {s:'Mac OS', r:/(MacPPC|MacIntel|Mac_PowerPC|Macintosh)/},
            {s:'QNX', r:/QNX/},
            {s:'UNIX', r:/UNIX/},
            {s:'BeOS', r:/BeOS/},
            {s:'OS/2', r:/OS\/2/},
            {s:'Search Bot', r:/(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/}
        ];
        for (var id in clientStrings) {
            var cs = clientStrings[id];
            if (cs.r.test(nAgt)) {
                os = cs.s;
                break;
            }
        }

        var osVersion = unknown;

        if (/Windows/.test(os)) {
            osVersion = /Windows (.*)/.exec(os)[1];
            os = 'Windows';
        }

        switch (os) {
            case 'Mac OS X':
                osVersion = /Mac OS X (10[\.\_\d]+)/.exec(nAgt)[1];
                break;

            case 'Android':
                osVersion = /Android ([\.\_\d]+)/.exec(nAgt)[1];
                break;

            case 'iOS':
                osVersion = /OS (\d+)_(\d+)_?(\d+)?/.exec(nVer);
                osVersion = osVersion[1] + '.' + osVersion[2] + '.' + (osVersion[3] | 0);
                break;
        }

        // flash (you'll need to include swfobject)
        /* script src="//ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" */
        var flashVersion = 'no check';
        if (typeof swfobject != 'undefined') {
            var fv = swfobject.getFlashPlayerVersion();
            if (fv.major > 0) {
                flashVersion = fv.major + '.' + fv.minor + ' r' + fv.release;
            }
            else  {
                flashVersion = unknown;
            }
        }
    }

    window.jscd = {
        screen: screenSize,
        browser: browser,
        browserVersion: version,
        browserMajorVersion: majorVersion,
        mobile: mobile,
        os: os,
        osVersion: osVersion,
        cookies: cookieEnabled,
        flashVersion: flashVersion
    };
}(this));

alert(
    'OS: ' + jscd.os +' '+ jscd.osVersion + '\n' +
    'Browser: ' + jscd.browser +' '+ jscd.browserMajorVersion +
      ' (' + jscd.browserVersion + ')\n' + 
    'Mobile: ' + jscd.mobile + '\n' +
    'Flash: ' + jscd.flashVersion + '\n' +
    'Cookies: ' + jscd.cookies + '\n' +
    'Screen Size: ' + jscd.screen + '\n\n' +
    'Full User Agent: ' + navigator.userAgent
);

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";

Solusi @Ludwig sangat brilian. Beberapa perbaikan (yang tidak ada hubungannya dengan sistem operasi, dan saya tidak dapat memberi komentar pada postingan aslinya karena ini terlalu lama):

1. IE 11 tidak lagi mengidentifikasi dirinya sebagai MS IE.
2. Chrome di iOS menipu dirinya sendiri sebagai Safari

Di sini mereka:

(function (window) {
    {
    /* test cases
        alert(
            'browserInfo result: OS: ' + browserInfo.os +' '+ browserInfo.osVersion + '\n'+
                'Browser: ' + browserInfo.browser +' '+ browserInfo.browserVersion + '\n' +
                'Mobile: ' + browserInfo.mobile + '\n' +
                'Cookies: ' + browserInfo.cookies + '\n' +
                'Screen Size: ' + browserInfo.screen
        );
    */
        var unknown = 'Unknown';

        // screen
        var screenSize = '';
        if (screen.width) {
            width = (screen.width) ? screen.width : '';
            height = (screen.height) ? screen.height : '';
            screenSize += '' + width + " x " + height;
        }

        //browser
        var nVer = navigator.appVersion;
        var nAgt = navigator.userAgent;
        var browser = navigator.appName;
        var version = '' + parseFloat(navigator.appVersion);
        var majorVersion = parseInt(navigator.appVersion, 10);
        var nameOffset, verOffset, ix;

        // Opera
        if ((verOffset = nAgt.indexOf('Opera')) != -1) {
            browser = 'Opera';
            version = nAgt.substring(verOffset + 6);
            if ((verOffset = nAgt.indexOf('Version')) != -1) {
                version = nAgt.substring(verOffset + 8);
            }
        }
        // MSIE
        else if ((verOffset = nAgt.indexOf('MSIE')) != -1) {
            browser = 'Microsoft Internet Explorer';
            version = nAgt.substring(verOffset + 5);
        }

        //IE 11 no longer identifies itself as MS IE, so trap it
        //http://stackoverflow.com/questions/17907445/how-to-detect-ie11
        else if ((browser == 'Netscape') && (nAgt.indexOf('Trident/') != -1)) {

            browser = 'Microsoft Internet Explorer';
            version = nAgt.substring(verOffset + 5);
            if ((verOffset = nAgt.indexOf('rv:')) != -1) {
                version = nAgt.substring(verOffset + 3);
            }

        }

        // Chrome
        else if ((verOffset = nAgt.indexOf('Chrome')) != -1) {
            browser = 'Chrome';
            version = nAgt.substring(verOffset + 7);
        }
        // Safari
        else if ((verOffset = nAgt.indexOf('Safari')) != -1) {
            browser = 'Safari';
            version = nAgt.substring(verOffset + 7);
            if ((verOffset = nAgt.indexOf('Version')) != -1) {
                version = nAgt.substring(verOffset + 8);
            }

            // Chrome on iPad identifies itself as Safari. Actual results do not match what Google claims
            //  at: https://developers.google.com/chrome/mobile/docs/user-agent?hl=ja
            //  No mention of chrome in the user agent string. However it does mention CriOS, which presumably
            //  can be keyed on to detect it.
            if (nAgt.indexOf('CriOS') != -1) {
                //Chrome on iPad spoofing Safari...correct it.
                browser = 'Chrome';
                //Don't believe there is a way to grab the accurate version number, so leaving that for now.
            }
        }
        // Firefox
        else if ((verOffset = nAgt.indexOf('Firefox')) != -1) {
            browser = 'Firefox';
            version = nAgt.substring(verOffset + 8);
        }
        // Other browsers
        else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
            browser = nAgt.substring(nameOffset, verOffset);
            version = nAgt.substring(verOffset + 1);
            if (browser.toLowerCase() == browser.toUpperCase()) {
                browser = navigator.appName;
            }
        }
        // trim the version string
        if ((ix = version.indexOf(';')) != -1) version = version.substring(0, ix);
        if ((ix = version.indexOf(' ')) != -1) version = version.substring(0, ix);
        if ((ix = version.indexOf(')')) != -1) version = version.substring(0, ix);

        majorVersion = parseInt('' + version, 10);
        if (isNaN(majorVersion)) {
            version = '' + parseFloat(navigator.appVersion);
            majorVersion = parseInt(navigator.appVersion, 10);
        }

        // mobile version
        var mobile = /Mobile|mini|Fennec|Android|iP(ad|od|hone)/.test(nVer);

        // cookie
        var cookieEnabled = (navigator.cookieEnabled) ? true : false;

        if (typeof navigator.cookieEnabled == 'undefined' && !cookieEnabled) {
            document.cookie = 'testcookie';
            cookieEnabled = (document.cookie.indexOf('testcookie') != -1) ? true : false;
        }

        // system
        var os = unknown;
        var clientStrings = [
            {s:'Windows 3.11', r:/Win16/},
            {s:'Windows 95', r:/(Windows 95|Win95|Windows_95)/},
            {s:'Windows ME', r:/(Win 9x 4.90|Windows ME)/},
            {s:'Windows 98', r:/(Windows 98|Win98)/},
            {s:'Windows CE', r:/Windows CE/},
            {s:'Windows 2000', r:/(Windows NT 5.0|Windows 2000)/},
            {s:'Windows XP', r:/(Windows NT 5.1|Windows XP)/},
            {s:'Windows Server 2003', r:/Windows NT 5.2/},
            {s:'Windows Vista', r:/Windows NT 6.0/},
            {s:'Windows 7', r:/(Windows 7|Windows NT 6.1)/},
            {s:'Windows 8.1', r:/(Windows 8.1|Windows NT 6.3)/},
            {s:'Windows 8', r:/(Windows 8|Windows NT 6.2)/},
            {s:'Windows NT 4.0', r:/(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/},
            {s:'Windows ME', r:/Windows ME/},
            {s:'Android', r:/Android/},
            {s:'Open BSD', r:/OpenBSD/},
            {s:'Sun OS', r:/SunOS/},
            {s:'Linux', r:/(Linux|X11)/},
            {s:'iOS', r:/(iPhone|iPad|iPod)/},
            {s:'Mac OS X', r:/Mac OS X/},
            {s:'Mac OS', r:/(MacPPC|MacIntel|Mac_PowerPC|Macintosh)/},
            {s:'QNX', r:/QNX/},
            {s:'UNIX', r:/UNIX/},
            {s:'BeOS', r:/BeOS/},
            {s:'OS/2', r:/OS\/2/},
            {s:'Search Bot', r:/(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/}
        ];
        for (var id in clientStrings) {
            var cs = clientStrings[id];
            if (cs.r.test(nAgt)) {
                os = cs.s;
                break;
            }
        }

        var osVersion = unknown;

        if (/Windows/.test(os)) {
            osVersion = /Windows (.*)/.exec(os)[1];
            os = 'Windows';
        }

        switch (os) {
            case 'Mac OS X':
                osVersion = /Mac OS X (10[\.\_\d]+)/.exec(nAgt)[1];
                break;

            case 'Android':
                osVersion = /Android ([\.\_\d]+)/.exec(nAgt)[1];
                break;

            case 'iOS':
                osVersion = /OS (\d+)_(\d+)_?(\d+)?/.exec(nVer);
                osVersion = osVersion[1] + '.' + osVersion[2] + '.' + (osVersion[3] | 0);
                break;

        }
    }

    window.browserInfo = {
        screen: screenSize,
        browser: browser,
        browserVersion: version,
        mobile: mobile,
        os: os,
        osVersion: osVersion,
        cookies: cookieEnabled
    };
}(this));

JavaScript memiliki akses ke window.navigator.platform- string yang mewakili platform browser: https://developer.mozilla.org/en/DOM/window.navigator.platform

Gunakan untuk mengekstrak detail apa pun yang Anda butuhkan (dan dapat). Perhatikan bahwa tidak ada jaminan bahwa klien benar-benar menggunakan platform itu karena ini dapat dengan mudah dimodifikasi dalam banyak cara.

platform.js sepertinya pustaka file yang bagus untuk melakukan ini.

Contoh penggunaan:

// on IE10 x86 platform preview running in IE7 compatibility mode on Windows 7 64 bit edition
platform.name; // 'IE'
platform.version; // '10.0'
platform.layout; // 'Trident'
platform.os; // 'Windows Server 2008 R2 / 7 x64'
platform.description; // 'IE 10.0 x86 (platform preview; running in IE 7 mode) on Windows Server 2008 R2 / 7 x64'

// or on an iPad
platform.name; // 'Safari'
platform.version; // '5.1'
platform.product; // 'iPad'
platform.manufacturer; // 'Apple'
platform.layout; // 'WebKit'
platform.os; // 'iOS 5.0'
platform.description; // 'Safari 5.1 on Apple iPad (iOS 5.0)'

// or parsing a given UA string
var info = platform.parse('Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.2; en; rv:2.0) Gecko/20100101 Firefox/4.0 Opera 11.52');
info.name; // 'Opera'
info.version; // '11.52'
info.layout; // 'Presto'
info.os; // 'Mac OS X 10.7.2'
info.description; // 'Opera 11.52 (identifying as Firefox 4.0) on Mac OS X 10.7.2'

Anda dapat menggunakan javascriptfungsi ini untuk memeriksa OS pengguna secara sederhana

  function getOS() {
  var userAgent = window.navigator.userAgent,
      platform = window.navigator.platform,
      macosPlatforms = ['Macintosh', 'MacIntel', 'MacPPC', 'Mac68K'],
      windowsPlatforms = ['Win32', 'Win64', 'Windows', 'WinCE'],
      iosPlatforms = ['iPhone', 'iPad', 'iPod'],
      os = null;

  if (macosPlatforms.indexOf(platform) !== -1) {
    os = 'Mac OS';
  } else if (iosPlatforms.indexOf(platform) !== -1) {
    os = 'iOS';
  } else if (windowsPlatforms.indexOf(platform) !== -1) {
    os = 'Windows';
  } else if (/Android/.test(userAgent)) {
    os = 'Android';
  } else if (!os && /Linux/.test(platform)) {
    os = 'Linux';
  }

  return os;
}

alert(getOS());

Anda dapat menemukan nama dan versi OS di navigatorobjek, seperti yang dijawab orang lain. Tempat standar, peramban silang untuk menemukan informasi ini ada di navigator.userAgentproperti. Namun, string agen pengguna sangat bervariasi menurut OS dan browser.

Jadi, saya membuat skrip untuk merangkum logika ini dan melaporkan OS dan browser yang paling umum dengan cara yang akrab, seperti http://www.whatsmybrowser.org .

Saya membuka sumber skrip dan mengunggahnya ke github, https://github.com/keithws/browser-report . Permintaan penarikan dipersilahkan!

Saya telah membuat perpustakaan untuk mengurai string Agen Pengguna yang disebut Voodoo . Namun perlu diperhatikan bahwa ini tidak boleh digunakan sebagai pengganti deteksi fitur.

Apa yang dilakukan Voodoo, adalah mem-parsing string userAgent, yang ditemukan di objek Navigator (window.navigator). Tidak semua browser yang melewati string userAgent yang andal, jadi meskipun itu adalah cara normal untuk melakukannya, userAgent tidak selalu dapat dipercaya.

Saya garpu kode @Ludwig dan menghapus kebutuhan swfobject.

Saya hanya menggunakan kode swfobject untuk mendeteksi versi flash.

/**
 * JavaScript Client Detection
 * (C) viazenetti GmbH (Christian Ludwig)
 */
(function (window) {
    {
    var unknown = '-';

    // screen
    var screenSize = '';
    if (screen.width) {
        width = (screen.width) ? screen.width : '';
        height = (screen.height) ? screen.height : '';
        screenSize += '' + width + " x " + height;
    }

    //browser
    var nVer = navigator.appVersion;
    var nAgt = navigator.userAgent;
    var browser = navigator.appName;
    var version = '' + parseFloat(navigator.appVersion);
    var majorVersion = parseInt(navigator.appVersion, 10);
    var nameOffset, verOffset, ix;

    // Opera
    if ((verOffset = nAgt.indexOf('Opera')) != -1) {
        browser = 'Opera';
        version = nAgt.substring(verOffset + 6);
        if ((verOffset = nAgt.indexOf('Version')) != -1) {
        version = nAgt.substring(verOffset + 8);
        }
    }
    // MSIE
    else if ((verOffset = nAgt.indexOf('MSIE')) != -1) {
        browser = 'Microsoft Internet Explorer';
        version = nAgt.substring(verOffset + 5);
    }
    // Chrome
    else if ((verOffset = nAgt.indexOf('Chrome')) != -1) {
        browser = 'Chrome';
        version = nAgt.substring(verOffset + 7);
    }
    // Safari
    else if ((verOffset = nAgt.indexOf('Safari')) != -1) {
        browser = 'Safari';
        version = nAgt.substring(verOffset + 7);
        if ((verOffset = nAgt.indexOf('Version')) != -1) {
        version = nAgt.substring(verOffset + 8);
        }
    }
    // Firefox
    else if ((verOffset = nAgt.indexOf('Firefox')) != -1) {
        browser = 'Firefox';
        version = nAgt.substring(verOffset + 8);
    }
    // MSIE 11+
    else if (nAgt.indexOf('Trident/') != -1) {
        browser = 'Microsoft Internet Explorer';
        version = nAgt.substring(nAgt.indexOf('rv:') + 3);
    }
    // Other browsers
    else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
        browser = nAgt.substring(nameOffset, verOffset);
        version = nAgt.substring(verOffset + 1);
        if (browser.toLowerCase() == browser.toUpperCase()) {
        browser = navigator.appName;
        }
    }
    // trim the version string
    if ((ix = version.indexOf(';')) != -1) version = version.substring(0, ix);
    if ((ix = version.indexOf(' ')) != -1) version = version.substring(0, ix);
    if ((ix = version.indexOf(')')) != -1) version = version.substring(0, ix);

    majorVersion = parseInt('' + version, 10);
    if (isNaN(majorVersion)) {
        version = '' + parseFloat(navigator.appVersion);
        majorVersion = parseInt(navigator.appVersion, 10);
    }

    // mobile version
    var mobile = /Mobile|mini|Fennec|Android|iP(ad|od|hone)/.test(nVer);

    // cookie
    var cookieEnabled = (navigator.cookieEnabled) ? true : false;

    if (typeof navigator.cookieEnabled == 'undefined' && !cookieEnabled) {
        document.cookie = 'testcookie';
        cookieEnabled = (document.cookie.indexOf('testcookie') != -1) ? true : false;
    }

    // system
    var os = unknown;
    var clientStrings = [
        {s:'Windows 10', r:/(Windows 10.0|Windows NT 10.0)/},
        {s:'Windows 8.1', r:/(Windows 8.1|Windows NT 6.3)/},
        {s:'Windows 8', r:/(Windows 8|Windows NT 6.2)/},
        {s:'Windows 7', r:/(Windows 7|Windows NT 6.1)/},
        {s:'Windows Vista', r:/Windows NT 6.0/},
        {s:'Windows Server 2003', r:/Windows NT 5.2/},
        {s:'Windows XP', r:/(Windows NT 5.1|Windows XP)/},
        {s:'Windows 2000', r:/(Windows NT 5.0|Windows 2000)/},
        {s:'Windows ME', r:/(Win 9x 4.90|Windows ME)/},
        {s:'Windows 98', r:/(Windows 98|Win98)/},
        {s:'Windows 95', r:/(Windows 95|Win95|Windows_95)/},
        {s:'Windows NT 4.0', r:/(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/},
        {s:'Windows CE', r:/Windows CE/},
        {s:'Windows 3.11', r:/Win16/},
        {s:'Android', r:/Android/},
        {s:'Open BSD', r:/OpenBSD/},
        {s:'Sun OS', r:/SunOS/},
        {s:'Linux', r:/(Linux|X11)/},
        {s:'iOS', r:/(iPhone|iPad|iPod)/},
        {s:'Mac OS X', r:/Mac OS X/},
        {s:'Mac OS', r:/(MacPPC|MacIntel|Mac_PowerPC|Macintosh)/},
        {s:'QNX', r:/QNX/},
        {s:'UNIX', r:/UNIX/},
        {s:'BeOS', r:/BeOS/},
        {s:'OS/2', r:/OS\/2/},
        {s:'Search Bot', r:/(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/}
    ];
    for (var id in clientStrings) {
        var cs = clientStrings[id];
        if (cs.r.test(nAgt)) {
        os = cs.s;
        break;
        }
    }

    var osVersion = unknown;

    if (/Windows/.test(os)) {
        osVersion = /Windows (.*)/.exec(os)[1];
        os = 'Windows';
    }

    switch (os) {
        case 'Mac OS X':
        osVersion = /Mac OS X (10[\.\_\d]+)/.exec(nAgt)[1];
        break;

        case 'Android':
        osVersion = /Android ([\.\_\d]+)/.exec(nAgt)[1];
        break;

        case 'iOS':
        osVersion = /OS (\d+)_(\d+)_?(\d+)?/.exec(nVer);
        osVersion = osVersion[1] + '.' + osVersion[2] + '.' + (osVersion[3] | 0);
        break;
    }

    var flashVersion = 'no check', d, fv = [];
    if (typeof navigator.plugins !== 'undefined' && typeof navigator.plugins["Shockwave Flash"] === "object") {
        d = navigator.plugins["Shockwave Flash"].description;
        if (d && !(typeof navigator.mimeTypes !== 'undefined' && navigator.mimeTypes["application/x-shockwave-flash"] && !navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin)) { // navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin indicates whether plug-ins are enabled or disabled in Safari 3+
        d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
        fv[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10);
        fv[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10);
        fv[2] = /[a-zA-Z]/.test(d) ? parseInt(d.replace(/^.*[a-zA-Z]+(.*)$/, "$1"), 10) : 0;
        }
    } else if (typeof window.ActiveXObject !== 'undefined') {
        try {
        var a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
        if (a) { // a will return null when ActiveX is disabled
            d = a.GetVariable("$version");
            if (d) {
            d = d.split(" ")[1].split(",");
            fv = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
            }
        }
        }
        catch(e) {}
    }
    if (fv.length) {
        flashVersion = fv[0] + '.' + fv[1] + ' r' + fv[2];
    }    
    }

    window.jscd = {
    screen: screenSize,
    browser: browser,
    browserVersion: version,
    mobile: mobile,
    os: os,
    osVersion: osVersion,
    cookies: cookieEnabled,
    flashVersion: flashVersion
    };
}(this));

alert(
    'OS: ' + jscd.os +' '+ jscd.osVersion + '\n'+
    'Browser: ' + jscd.browser +' '+ jscd.browserVersion + '\n' + 
    'Mobile: ' + jscd.mobile + '\n' +
    'Flash: ' + jscd.flashVersion + '\n' +
    'Cookies: ' + jscd.cookies + '\n' +
    'Screen Size: ' + jscd.screen + '\n\n' +
    'Full User Agent: ' + navigator.userAgent
);

Gunakan detectOS.js :

var Detect = {
    init: function () {
        this.OS = this.searchString(this.dataOS);
    },
    searchString: function (data) {
        for (var i=0;i<data.length;i++) {
            var dataString = data[i].string;
            var dataProp = data[i].prop;
            if (dataString) {
                if (dataString.indexOf(data[i].subString) != -1)
                    return data[i].identity;
            }
            else if (dataProp)
                return data[i].identity;
        }
    },
    dataOS : [
        {
            string: navigator.platform,
            subString: 'Win',
            identity: 'Windows'
        },
        {
            string: navigator.platform,
            subString: 'Mac',
            identity: 'macOS'
        },
        {
            string: navigator.userAgent,
            subString: 'iPhone',
            identity: 'iOS'
        },
        {
            string: navigator.userAgent,
            subString: 'iPad',
            identity: 'iOS'
        },
        {
            string: navigator.userAgent,
            subString: 'iPod',
            identity: 'iOS'
        },
        {
            string: navigator.userAgent,
            subString: 'Android',
            identity: 'Android'
        },
        {
            string: navigator.platform,
            subString: 'Linux',
            identity: 'Linux'
        }
    ]
};

Detect.init();

console.log("We know your OS – it's " + Detect.OS + ". We know everything about you.");

Saya tidak dapat mengomentari @Ian Ippolito jawaban (karena saya akan memiliki jika saya punya perwakilan) tetapi menurut dokumen yang ditautkan komentarnya, saya cukup yakin Anda dapat menemukan versi Chrome untuk iOS. https://developer.chrome.com/multidevice/user-agent?hl=ja mencantumkan UA sebagai: Mozilla / 5.0 (iPhone; CPU iPhone OS 10_3 seperti Mac OS X) AppleWebKit / 602.1.50 (KHTML, seperti Gecko) CriOS / 56.0.2924.75 Mobile / 14E5239e Safari / 602.1

Jadi ini seharusnya bekerja:

if ((verOffset = nAgt.indexOf('CriOS')) != -1) {
                //Chrome on iPad spoofing Safari...correct it.
                browser = 'Chrome';
                version = nAgt.substring(verOffset + 6);//should get the criOS ver.
            }

Belum bisa menguji (kalau tidak saya akan memperbaiki jawabannya) untuk memastikan karena iPad saya ada di rumah dan saya sedang bekerja, tapi saya pikir saya akan meletakkannya di sana.

Hai untuk solusi cepat, Anda dapat mempertimbangkan perpustakaan berikut: UAPARSER - https://www.npmjs.com/package/ua-parser-js

contoh:

<script type="text/javascript" src="ua-parser.min.js"></script>
<script type="text/javascript">

var parser = new UAParser();
console.log(parser.getOS()) // will log  {name: "", version:""}

Anda juga dapat menginstal perpustakaan melalui npm, dan mengimpornya seperti ini:

import { UAParser } from 'ua-parser-js';
let parser = new UAParser();
parser.getOS();

perpustakaan adalah parser string agen pengguna berbasis JS (window.navigator.userAgent adalah agen pengguna di browser), sehingga Anda bisa mendapatkannya dengan rincian lain juga seperti Browser, perangkat, mesin dll. dan dapat bekerja dengan node js demikian juga.

jika Anda perlu mengetik untuk perpustakaan: https://www.npmjs.com/package/@types/ua-parser-js