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Dec 20, 2024 am 09:01 AM

How Can I Retrieve Operating System Details Using JavaScript?

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/**
 * 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(nVer);
        var nameOffset, verOffset, ix;

        // Yandex Browser
        if ((verOffset = nAgt.indexOf('YaBrowser')) != -1) {
            browser = 'Yandex';
            version = nAgt.substring(verOffset + 10);
        }
        // Samsung Browser
        else if ((verOffset = nAgt.indexOf('SamsungBrowser')) != -1) {
            browser = 'Samsung';
            version = nAgt.substring(verOffset + 15);
        }
        // UC Browser
        else if ((verOffset = nAgt.indexOf('UCBrowser')) != -1) {
            browser = 'UC Browser';
            version = nAgt.substring(verOffset + 10);
        }
        // Opera Next
        else if ((verOffset = nAgt.indexOf('OPR')) != -1) {
            browser = 'Opera';
            version = nAgt.substring(verOffset + 4);
        }
        // Opera
        else if ((verOffset = nAgt.indexOf('Opera')) != -1) {
            browser = 'Opera';
            version = nAgt.substring(verOffset + 6);
            if ((verOffset = nAgt.indexOf('Version')) != -1) {
                version = nAgt.substring(verOffset + 8);
            }
        }
        // Legacy Edge
        else if ((verOffset = nAgt.indexOf('Edge')) != -1) {
            browser = 'Microsoft Legacy Edge';
            version = nAgt.substring(verOffset + 5);
        }
        // Edge (Chromium)
        else if ((verOffset = nAgt.indexOf('Edg')) != -1) {
            browser = 'Microsoft Edge';
            version = nAgt.substring(verOffset + 4);
        }
        // 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(nVer);
            majorVersion = parseInt(nVer, 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: /(Mac OS|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':
            case 'Mac OS X':

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