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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
​
</body>
</html>
 
// browser detect
var BrowserDetect = {
        init: function(userAgent, appVersion) {
        this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
        this.version = this.searchVersion(userAgent) || this.searchVersion(appVersion) || "an unknown version";
        this.OS = this.searchString(this.dataOS) || "an unknown OS";
    },
    searchString: function(data) {
        for (var i = 0; i < data.length; i++) {
            var dataString = data[i].string;
            var dataProp = data[i].prop;
            this.versionSearchString = data[i].versionSearch || data[i].identity;
            if (dataString) {
              if (dataString.indexOf(data[i].subString) != -1) {
                return data[i].identity;
              }
            } else if (dataProp) {
              return data[i].identity;
            }
        }
    },
    searchVersion: function(dataString) {
        var index = dataString.indexOf(this.versionSearchString);
        if (index == -1) return;
        return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
    },
    dataBrowser: [
      {
        string: 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; Win64; x64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)',
        subString: "MSIE",
        identity: "Explorer",
        versionSearch: "MSIE"
    }, 
      {
        string: navigator.userAgent,
        subString: "Chrome",
        identity: "Chrome"
    }, {
        string: navigator.userAgent,
        subString: "OmniWeb",
        versionSearch: "OmniWeb/",
        identity: "OmniWeb"
    }, {
        string: navigator.vendor,
        subString: "Apple",
        identity: "Safari",
        versionSearch: "Version"
    }, {
        prop: window.opera,
        identity: "Opera",
        versionSearch: "Version"
    }, {
        string: navigator.vendor,
        subString: "iCab",
        identity: "iCab"
    }, {
        string: navigator.vendor,
        subString: "KDE",
        identity: "Konqueror"
    }, {
        string: navigator.userAgent,
        subString: "Firefox",
        identity: "Firefox"
    }, {
        string: navigator.vendor,
        subString: "Camino",
        identity: "Camino"
    }, { // for newer Netscapes (6+)
        string: navigator.userAgent,
        subString: "Netscape",
        identity: "Netscape"
    }, {
        string: 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; Win64; x64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)',
        subString: "MSIE",
        identity: "Explorer",
        versionSearch: "MSIE"
    }, {
        string: navigator.userAgent,
        subString: "Trident",
        identity: "Explorer",
        versionSearch: "rv"
     }, {
        string: navigator.userAgent,
        subString: "Edge",
        identity: "Edge"
    }, {
        string: navigator.userAgent,
        subString: "Gecko",
        identity: "Mozilla",
        versionSearch: "rv"
    }, { // for older Netscapes (4-)
        string: navigator.userAgent,
        subString: "Mozilla",
        identity: "Netscape",
        versionSearch: "Mozilla"
    }],
    dataOS: [{
        string: navigator.platform,
        subString: "Win",
        identity: "Windows"
    }, {
        string: navigator.platform,
        subString: "Mac",
        identity: "Mac"
    }, {
        string: navigator.userAgent,
        subString: "iPhone",
        identity: "iPhone/iPod"
    }, {
        string: navigator.platform,
        subString: "Linux",
        identity: "Linux"
    }],
  isMobile: {
    Android: function() {
        return navigator.userAgent.match(/Android/i);
    },
    BlackBerry: function() {
        return navigator.userAgent.match(/BlackBerry/i);
    },
    iOS: function() {
        return navigator.userAgent.match(/iPhone|iPad|iPod/i);
    },
    Opera: function() {
        return navigator.userAgent.match(/Opera Mini/i);
    },
    Windows: function() {
        return navigator.userAgent.match(/IEMobile/i);
    },
    any: function() {
        return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows());
    }
  }
};
BrowserDetect.init("Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; Win64; x64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)", navigator.appVersion);
​
console.log(navigator.userAgent, navigator.appVersion)
console.log(BrowserDetect.OS, BrowserDetect.browser, BrowserDetect.version, this.versionSearchString)
Output

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