我一直在寻找可以检测访问网站的用户使用的是火狐3还是火狐4的代码。我所找到的只是检测浏览器类型而不是版本的代码。
如何检测这样的浏览器版本?
我一直在寻找可以检测访问网站的用户使用的是火狐3还是火狐4的代码。我所找到的只是检测浏览器类型而不是版本的代码。
如何检测这样的浏览器版本?
当前回答
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。
为了检测Edge和UCBrowser这样的浏览器,我做了一些改动
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());
其他回答
使用这个:http://www.quirksmode.org/js/detect.html
alert(BrowserDetect.browser); // will say "Firefox"
alert(BrowserDetect.version); // will say "3" or "4"
基于已接受的答案,这是检测“Microsoft Edge”的更新
navigator.sayswho= (function(){ var ua= navigator.userAgent; var tem; var M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || []; if(/trident/i.test(M[1])){ tem= /\brv[ :]+(\d+)/g.exec(ua) || []; return 'IE '+(tem[1] || ''); } if(M[1]=== 'Chrome'){ tem= ua.match(/\b(OPR|Edg)\/(\d+)/); if(tem!= null) return tem.slice(1).join(' ').replace('OPR', 'Opera'); } M= M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?']; if((tem= ua.match(/version\/(\d+)/i))!= null) M.splice(1, 1, tem[1]); return M.join(' '); })(); console.log(navigator.sayswho);
更新的代码,以检测浏览器从iOS。
navigator.sayswho= (function(){
var ua= navigator.userAgent;
var tem;
var M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
if(/trident/i.test(M[1])){
tem= /\brv[ :]+(\d+)/g.exec(ua) || [];
return 'IE '+(tem[1] || '');
}
if(M[1]=== 'Chrome'){
tem= ua.match(/\b(OPR)\/(\d+)/);
if(tem!= null) return 'Opera '+ tem.slice(1)[1];
tem= ua.match(/\b(Edg[a-zA-Z]{0,3})\/(\d+)/);
if(tem!= null) return 'Edge '+ tem.slice(1)[1];
} else if(M[1]=== 'Safari') {
tem= ua.match(/\b(EdgiOS)\/(\d+)/);
if(tem!= null) return 'Edge '+ tem.slice(1)[1];
tem= ua.match(/\b(FxiOS)\/(\d+)/);
if(tem!= null) return 'Firefox '+ tem.slice(1)[1];
tem= ua.match(/\b(CriOS)\/(\d+)/);
if(tem!= null) return 'Chrome '+ tem.slice(1)[1];
}
M= M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?'];
if((tem= ua.match(/version\/(\d+)/i))!= null) M.splice(1, 1, tem[1]);
return M.join(' ');
}) ();
var nVer = navigator.appVersion;
var nAgt = navigator.userAgent;
var browserName = navigator.appName;
var fullVersion = '' + parseFloat(navigator.appVersion);
var majorVersion = parseInt(navigator.appVersion, 10);
var nameOffset, verOffset, ix;
// In Opera 15+, the true version is after "OPR/"
if ((verOffset = nAgt.indexOf("OPR/")) != -1) {
browserName = "Opera";
fullVersion = nAgt.substring(verOffset + 4);
}
// In older Opera, the true version is after "Opera" or after "Version"
else if ((verOffset = nAgt.indexOf("Opera")) != -1) {
browserName = "Opera";
fullVersion = nAgt.substring(verOffset + 6);
if ((verOffset = nAgt.indexOf("Version")) != -1)
fullVersion = nAgt.substring(verOffset + 8);
}
// In MSIE, the true version is after "MSIE" in userAgent
else if ((verOffset = nAgt.indexOf("MSIE")) != -1) {
browserName = "Microsoft Internet Explorer";
fullVersion = nAgt.substring(verOffset + 5);
}
// In Chrome, the true version is after "Chrome"
else if ((verOffset = nAgt.indexOf("Chrome")) != -1) {
browserName = "Google Chrome";
fullVersion = nAgt.substring(verOffset + 7);
}
// In Safari, the true version is after "Safari" or after "Version"
else if ((verOffset = nAgt.indexOf("Safari")) != -1) {
browserName = "Safari";
fullVersion = nAgt.substring(verOffset + 7);
if ((verOffset = nAgt.indexOf("Version")) != -1)
fullVersion = nAgt.substring(verOffset + 8);
}
// In Firefox, the true version is after "Firefox"
else if ((verOffset = nAgt.indexOf("Firefox")) != -1) {
browserName = "Mozilla Firefox";
fullVersion = nAgt.substring(verOffset + 8);
}
// In most other browsers, "name/version" is at the end of userAgent
else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
browserName = nAgt.substring(nameOffset, verOffset);
fullVersion = nAgt.substring(verOffset + 1);
if (browserName.toLowerCase() == browserName.toUpperCase()) {
browserName = navigator.appName;
}
}
// trim the fullVersion string at semicolon/space if present
if ((ix = fullVersion.indexOf(';')) != -1) fullVersion = fullVersion.substring(0, ix);
if ((ix = fullVersion.indexOf(' ')) != -1) fullVersion = fullVersion.substring(0, ix);
majorVersion = parseInt('' + fullVersion, 10);
if (isNaN(majorVersion)) {
fullVersion = '' + parseFloat(navigator.appVersion);
majorVersion = parseInt(navigator.appVersion, 10);
}
我想分享我为我必须解决的问题而编写的代码。它在大多数主流浏览器中都进行了测试,对我来说,它就像一个魅力!
似乎这段代码与其他答案非常相似,但它进行了修改,以便我可以使用它而不是我最近错过的jquery浏览器对象,当然它是上述代码的组合,从我的部分我做了一些改进:
(function($, ua){
var M = ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [],
tem,
res;
if(/trident/i.test(M[1])){
tem = /\brv[ :]+(\d+)/g.exec(ua) || [];
res = 'IE ' + (tem[1] || '');
}
else if(M[1] === 'Chrome'){
tem = ua.match(/\b(OPR|Edge)\/(\d+)/);
if(tem != null)
res = tem.slice(1).join(' ').replace('OPR', 'Opera');
else
res = [M[1], M[2]];
}
else {
M = M[2]? [M[1], M[2]] : [navigator.appName, navigator.appVersion, '-?'];
if((tem = ua.match(/version\/(\d+)/i)) != null) M = M.splice(1, 1, tem[1]);
res = M;
}
res = typeof res === 'string'? res.split(' ') : res;
$.browser = {
name: res[0],
version: res[1],
msie: /msie|ie/i.test(res[0]),
firefox: /firefox/i.test(res[0]),
opera: /opera/i.test(res[0]),
chrome: /chrome/i.test(res[0]),
edge: /edge/i.test(res[0])
}
})(typeof jQuery != 'undefined'? jQuery : window.$, navigator.userAgent);
console.log($.browser.name, $.browser.version, $.browser.msie);
// if IE 11 output is: IE 11 true