javascript Get browser version_Basic knowledge

At work, you need to use JS to get the name and version number of the currently used browser. A lot of information on the Internet has a keyword called navigator.appName, but there are only two browser names obtained by this method, either IE. Or Netscap, which can be used to determine whether IE is used, but I want to get the specific browser product name such as Firefox, Chrome, etc.

Copy code The code is as follows:

function BroswerUtil() {
}
BroswerUtil.prototype = {
    getBrowserVersion: function () {
        var agent = navigator.userAgent.toLowerCase();
        var arr = [];
        var Browser = "";
        var Bversion = "";
        var verinNum = "";
        //IE
        if (agent.indexOf("msie") > 0) {
            var regStr_ie = /msie [d.] ;/gi;
            Browser = "IE";
            Bversion = "" agent.match(regStr_ie)
        }
        //firefox
        else if (agent.indexOf("firefox") > 0) {
            var regStr_ff = /firefox/[d.] /gi;
            Browser = "firefox";
            Bversion = "" agent.match(regStr_ff);
        }
        //Chrome
        else if (agent.indexOf("chrome") > 0) {
            var regStr_chrome = /chrome/[d.] /gi;
            Browser = "chrome";
            Bversion = "" agent.match(regStr_chrome);
        }
        //Safari
        else if (agent.indexOf("safari") > 0 && agent.indexOf("chrome") < 0) {
            var regStr_saf = /version/[d.] /gi;
            Browser = "safari";
            Bversion = "" agent.match(regStr_saf);
        }
        //Opera
        else if (agent.indexOf("opera") >= 0) {
            var regStr_opera = /version/[d.] /gi;
            Browser = "opera";
            Bversion = "" agent.match(regStr_opera);
        } else {
            var browser = navigator.appName;
            if (browser == "Netscape") {
                var version = agent.split(";");
                var trim_Version = version[7].replace(/[ ]/g, "");
                var rvStr = trim_Version.match(/[d.]/g).toString();
                var rv = rvStr.replace(/[,]/g, "");
                Bversion = rv;
                Browser = "IE"
            }
        }
        verinNum = (Bversion "").replace(/[^0-9.]/ig, "");
        arr.push(Browser);
        arr.push(verinNum);
        return arr;
    },
    WB: (function () {
        var UserAgent = navigator.userAgent.toLowerCase();
        alert(UserAgent)
        return {
               isIE6: /msie 6.0/.test(UserAgent), // IE6
              isIE7: /msie 7.0/.test(UserAgent), // IE7
              isIE8: /msie 8.0/.test(UserAgent), // IE8
               isIE9: /msie 9.0/.test(UserAgent), // IE9
              isIE10: /msie 10.0/.test(UserAgent), // IE10
               isIE11: /msie 11.0/.test(UserAgent), // IE11
              isLB: /lbbrowser/.test(UserAgent), // Cheetah Browser
              isUc: /ucweb/.test(UserAgent), // UC Browser
               is360: /360se/.test(UserAgent), // 360 Browser
                isBaidu: /bidubrowser/.test(UserAgent), // Baidu Browser
              isSougou: /metasr/.test(UserAgent), // Sogou Browser
               isChrome: /chrome/.test(UserAgent.substr(-33, 6)), // Chrome browser
               isFirefox: /firefox/.test(UserAgent), // Firefox
              isOpera: /opera/.test(UserAgent), // Opera browser
                 isSafire: /safari/.test(UserAgent) && !/chrome/.test(UserAgent), // safire browser
              isQQ:/qqbrowser/.test(UserAgent)//qq browser
        };
})()
}

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