• 来源于网络，用以备忘
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    function getBrowser()
    {
        //注意关键字大小写
        var ua_str = navigator.userAgent.toLowerCase(), ie_Tridents, trident, match_str, ie_aer_rv, browser_chi_Type;
        //判断IE 浏览器,
        if("ActiveXObject" in self){
            // ie_aer_rv:  指示IE 的版本.
            // It can be affected by the current document mode of IE.
            ie_aer_rv= (match_str = ua_str.match(/msie ([\d.]+)/)) ?match_str[1] :
                (match_str = ua_str.match(/rv:([\d.]+)/)) ?match_str[1] : 0;

            // ie: Indicate the really version of current IE browser.
            ie_Tridents = {"trident/7.0": 11, "trident/6.0": 10, "trident/5.0": 9, "trident/4.0": 8};
            //匹配 ie8, ie11, edge
            trident = (match_str = ua_str.match(/(trident\/[\d.]+|edge\/[\d.]+)/)) ?match_str[1] : undefined;
            browser_chi_Type = (ie_Tridents[trident] || ie_aer_rv) > 0 ? "ie" : undefined;
        }else{
            //判断 windows edge 浏览器
            // match_str[1]: 返回浏览器及版本号,如: "edge/13.10586"
            // match_str[1]: 返回版本号,如: "edge"
            browser_chi_Type = (match_str = ua_str.match(/edge\/([\d.]+)/)) ? "Edge" :
                //判断firefox 浏览器
                (match_str = ua_str.match(/firefox\/([\d.]+)/)) ? "Firefox" :
                    //判断chrome 浏览器
                    (match_str = ua_str.match(/chrome\/([\d.]+)/)) ? "Chrome" :
                        //判断opera 浏览器
                        (match_str = ua_str.match(/opera.([\d.]+)/)) ? "Opera" :
                            //判断safari 浏览器
                            (match_str = ua_str.match(/version\/([\d.]+).*safari/)) ? "Safari" : undefined;
        }
        //返回浏览器类型和版本号
        var verNum = trident && ie_Tridents[trident] ? ie_Tridents[trident] : match_str[1];
        var info=new Array();
        info.name=browser_chi_Type;
        info.version=verNum;
        return info;
    }
  • 调用方法
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    console.log("浏览器："+getBrowser().name);
    console.log("版本："+getBrowser().version);