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
var ua = navigator.userAgent;
if (/Firefox\//.test(ua))
var Firefox = /Firefox\/([0-9\.A-z]+)/.exec(ua)[1];
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);
}
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());
以下是截至2019年5月处理浏览器检测的几个著名库。
Bowser by lancedikson - 3,761★s -最后更新于2019年5月26日- 4.8KB
var result = bowser.getParser(window.navigator.userAgent); console.log(结果); 文档。write("You are using " + result.parsedResult.browser.name + " v" + result.parsedResult.browser.version + “on”+ result.parsedResult.os.name); < script src = " https://unpkg.com/bowser@2.4.0 es5.js " > < /脚本>
*支持边缘基于铬
Platform.js by bestiejs - 2,250★s -最后更新于2018年10月30日- 5.9KB
console.log(平台); 文档。写上("你正在使用" + platform.name + . “V”+平台。版+ “On”+ platform.os); < script src = " https://cdnjs.cloudflare.com/ajax/libs/platform/1.3.5/platform.min.js " > < /脚本>
jQuery浏览器由gabceb - 504★s -最后更新2015年11月23日- 1.3KB
console.log (.browser美元) 文档。写("你正在使用" + $.browser.name + " V " + $.browser。versionNumber + “On”+ $.browser.platform); < script src = " https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js " > < /脚本> < script src = " https://cdnjs.cloudflare.com/ajax/libs/jquery-browser/0.1.0/jquery.browser.min.js " > < /脚本>
Detect.js(存档)by darcyclarke - 522★s -最后更新于2015年10月26日- 2.9KB
var result = detect.parse(navigator.userAgent); console.log(结果); 文档。write("You are using " + result.browser.family + “V”+ result.browser.version + “On”+ result.os.family); < script src = " https://cdnjs.cloudflare.com/ajax/libs/Detect.js/2.2.2/detect.min.js " > < /脚本>
浏览器检测(存档)由QuirksMode -最后更新2013年11月14日- 884B
console.log (BrowserDetect) 文档。write("You are using " + BrowserDetect. "浏览器+ v + BrowserDetect。版+ “on”+ BrowserDetect.OS); < script src = " https://kylemit.github.io/libraries/libraries/BrowserDetect.js " > < /脚本>
明显的提到:
该浏览器- 1355★s -最后更新于2018年10月2日 Modernizr - 23,397★s -最后更新2019年1月12日-喂喂喂马，特征检测应该驱动任何canIuse风格的问题。浏览器检测实际上只是为各个浏览器提供定制的图像、下载文件或说明。
进一步的阅读
堆栈溢出-浏览器检测JavaScript? 堆栈溢出-如何检测Safari, Chrome, IE, Firefox和Opera浏览器?
function BrowserCheck()
{
var N= navigator.appName, ua= navigator.userAgent, tem;
var M= ua.match(/(opera|chrome|safari|firefox|msie|trident)\/?\s*(\.?\d+(\.\d+)*)/i);
if(M && (tem= ua.match(/version\/([\.\d]+)/i))!= null) {M[2]=tem[1];}
M= M? [M[1], M[2]]: [N, navigator.appVersion,'-?'];
return M;
}
这将返回一个数组，第一个元素是浏览器名称，第二个元素是字符串格式的完整版本号。
