var BrowserDetect = {
        init: function () {
            this.browser = this.searchString(this.dataBrowser) || "Other";
            this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "Unknown";
        },
        searchString: function (data) {
            for (var i = 0; i < data.length; i++) {
                var dataString = data[i].string;
                this.versionSearchString = data[i].subString;

                if (dataString.indexOf(data[i].subString) !== -1) {
                    return data[i].identity;
                }
            }
        },
        searchVersion: function (dataString) {
            var index = dataString.indexOf(this.versionSearchString);
            if (index === -1) {
                return;
            }

            var rv = dataString.indexOf("rv:");
            if (this.versionSearchString === "Trident" && rv !== -1) {
                return parseFloat(dataString.substring(rv + 3));
            } else {
                return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
            }
        },

        dataBrowser: [
            {string: navigator.userAgent, subString: "Edge", identity: "MS Edge"},
            {string: navigator.userAgent, subString: "MSIE", identity: "Explorer"},
            {string: navigator.userAgent, subString: "Trident", identity: "Explorer"},
            {string: navigator.userAgent, subString: "Firefox", identity: "Firefox"},
            {string: navigator.userAgent, subString: "Opera", identity: "Opera"},  
            {string: navigator.userAgent, subString: "OPR", identity: "Opera"},  

            {string: navigator.userAgent, subString: "Chrome", identity: "Chrome"}, 
            {string: navigator.userAgent, subString: "Safari", identity: "Safari"}       
        ]
    };

    BrowserDetect.init();


    var bv= BrowserDetect.browser;
    if( bv == "Chrome"){
        $("body").addClass("chrome");
    }
    else if(bv == "MS Edge"){
     $("body").addClass("edge");
    }
    else if(bv == "Explorer"){
     $("body").addClass("ie");
    }
    else if(bv == "Firefox"){
     $("body").addClass("Firefox");
    }


$(".relative").click(function(){
$(".oc").toggle('slide', { direction: 'left', mode: 'show' }, 500);
$(".oc1").css({
   'width' : '100%',
   'margin-left' : '0px',
   });
});

以下是2016年Rob的答案调整版本，包括Microsoft Edge和Blink检测:

(编辑:我用这些信息更新了Rob的答案。)

// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera) isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0; // Firefox 1.0+ isFirefox = typeof InstallTrigger !== 'undefined'; // Safari 3.0+ isSafari = /constructor/i.test(window.HTMLElement) || (function (p) { return p.toString() === "[object SafariRemoteNotification]"; })(!window['safari'] || safari.pushNotification); // Internet Explorer 6-11 isIE = /*@cc_on!@*/false || !!document.documentMode; // Edge 20+ isEdge = !isIE && !!window.StyleMedia; // Chrome 1+ isChrome = !!window.chrome && !!window.chrome.webstore; // Blink engine detection isBlink = (isChrome || isOpera) && !!window.CSS; /* Results: */ console.log("isOpera", isOpera); console.log("isFirefox", isFirefox); console.log("isSafari", isSafari); console.log("isIE", isIE); console.log("isEdge", isEdge); console.log("isChrome", isChrome); console.log("isBlink", isBlink);

这种方法的美妙之处在于它依赖于浏览器引擎属性，因此它甚至涵盖了衍生浏览器，如Yandex或Vivaldi，这些浏览器实际上与它们所使用的引擎的主要浏览器兼容。例外是Opera，它依赖于用户代理嗅探，但是今天(即ver。15岁及以上)甚至Opera本身也只是Blink的一个外壳。

此方法目前对检测所有浏览器有效。我引用vue-element-admin模板

 export function fnBrowserDetect() {
      var browserName = (function(agent) {
        switch (true) {
          case agent.indexOf('edge') > -1: return 'MS Edge'
          case agent.indexOf('edg/') > -1: return 'Edge (chromium based)'
          case agent.indexOf('opr') > -1 && !!window.opr: return 'Opera'
          case agent.indexOf('chrome') > -1 && !!window.chrome: return 'Chrome'
          case agent.indexOf('trident') > -1: return 'MS IE'
          case agent.indexOf('firefox') > -1: return 'Mozilla Firefox'
          case agent.indexOf('safari') > -1: return 'Safari'
          default: return 'other'
        }
      })(window.navigator.userAgent.toLowerCase())
      return browserName.toLowerCase()
    }

简单的一行JavaScript代码会告诉你浏览器的名称:

function GetBrowser()
{
    return  navigator ? navigator.userAgent.toLowerCase() : "other";
}

检测浏览器及其版本

此代码片段基于MDN的文章。他们给出了可以用来检测浏览器名称的各种关键字的简短提示。

上图中显示的数据不足以检测所有浏览器，例如，Firefox的userAgent将Fxios作为关键字，而不是Firefox。

还做了一些更改来检测Edge和UCBrowser等浏览器

在dev-tools的帮助下，通过更改userAgent来测试以下浏览器的代码(如何更改userAgent):

火狐 铬 即 边缘 歌剧 Safari UCBrowser

getBrowser = () => { const userAgent = navigator.userAgent; let browser = "unkown"; // Detect browser name browser = (/ucbrowser/i).test(userAgent) ? 'UCBrowser' : browser; browser = (/edg/i).test(userAgent) ? 'Edge' : browser; browser = (/googlebot/i).test(userAgent) ? 'GoogleBot' : browser; browser = (/chromium/i).test(userAgent) ? 'Chromium' : browser; browser = (/firefox|fxios/i).test(userAgent) && !(/seamonkey/i).test(userAgent) ? 'Firefox' : browser; browser = (/; msie|trident/i).test(userAgent) && !(/ucbrowser/i).test(userAgent) ? 'IE' : browser; browser = (/chrome|crios/i).test(userAgent) && !(/opr|opera|chromium|edg|ucbrowser|googlebot/i).test(userAgent) ? 'Chrome' : browser;; browser = (/safari/i).test(userAgent) && !(/chromium|edg|ucbrowser|chrome|crios|opr|opera|fxios|firefox/i).test(userAgent) ? 'Safari' : browser; browser = (/opr|opera/i).test(userAgent) ? 'Opera' : browser; // detect browser version switch (browser) { case 'UCBrowser': return `${browser}/${browserVersion(userAgent,/(ucbrowser)\/([\d\.]+)/i)}`; case 'Edge': return `${browser}/${browserVersion(userAgent,/(edge|edga|edgios|edg)\/([\d\.]+)/i)}`; case 'GoogleBot': return `${browser}/${browserVersion(userAgent,/(googlebot)\/([\d\.]+)/i)}`; case 'Chromium': return `${browser}/${browserVersion(userAgent,/(chromium)\/([\d\.]+)/i)}`; case 'Firefox': return `${browser}/${browserVersion(userAgent,/(firefox|fxios)\/([\d\.]+)/i)}`; case 'Chrome': return `${browser}/${browserVersion(userAgent,/(chrome|crios)\/([\d\.]+)/i)}`; case 'Safari': return `${browser}/${browserVersion(userAgent,/(safari)\/([\d\.]+)/i)}`; case 'Opera': return `${browser}/${browserVersion(userAgent,/(opera|opr)\/([\d\.]+)/i)}`; case 'IE': const version = browserVersion(userAgent,/(trident)\/([\d\.]+)/i); // IE version is mapped using trident version // IE/8.0 = Trident/4.0, IE/9.0 = Trident/5.0 return version ? `${browser}/${parseFloat(version) + 4.0}` : `${browser}/7.0`; default: return `unknown/0.0.0.0`; } } browserVersion = (userAgent,regex) => { return userAgent.match(regex) ? userAgent.match(regex)[2] : null; } console.log(getBrowser());

我知道这可能是使用一个库，但只是为了丰富线程，你可以检查is.js的方式:

is.firefox();
is.ie(6);
is.not.safari();