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
我用它来获得实际浏览器版本的名称和编号(int):
function getInfoBrowser() { var ua = navigator.userAgent, tem, 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 { name: 'Explorer', version: parseInt((tem[1] || '')) }; } if (M[1] === 'Chrome') { tem = ua.match(/\b(OPR|Edge)\/(\d+)/); if (tem != null) { let app = tem.slice(1).toString().split(','); return { name: app[0].replace('OPR', 'Opera'), version: parseInt(app[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 { name: M[0], version: parseInt(M[1]) }; } function getBrowser(){ let info = getInfoBrowser(); $("#i-name").html(info.name); $("#i-version").html(info.version); } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <input type="button" onclick="getBrowser();" value="Get Info Browser"/> <hr/> Name: <span id="i-name"></span><br/> Version: <span id="i-version"></span>
这个磨合
铬;火狐浏览器;狩猎;Internet Explorer (>= 9);歌剧;边缘
给我。
其他回答
var ua = navigator.userAgent;
if (/Firefox\//.test(ua))
var Firefox = /Firefox\/([0-9\.A-z]+)/.exec(ua)[1];
我用ASP代码做了一个检测浏览器，浏览器版本，OS和OS版本的脚本。 我在ASP中这样做的原因是因为我想将数据存储在日志数据库中。 所以我必须检测浏览器服务器端。
代码如下:
on error resume next
ua = lcase(Request.ServerVariables("HTTP_USER_AGENT"))
moz = instr(ua,"mozilla")
ffx = instr(ua,"firefox")
saf = instr(ua,"safari")
crm = instr(ua,"chrome")
max = instr(ua,"maxthon")
opr = instr(ua,"opera")
ie4 = instr(ua,"msie 4")
ie5 = instr(ua,"msie 5")
ie6 = instr(ua,"msie 6")
ie7 = instr(ua,"msie 7")
ie8 = instr(ua,"trident/4.0")
ie9 = instr(ua,"trident/5.0")
if moz>0 then
BrowserType = "Mozilla"
BrVer = mid(ua,moz+8,(instr(moz,ua," ")-(moz+8)))
end if
if ffx>0 then
BrowserType = "FireFox"
BrVer = mid(ua,ffx+8)
end if
if saf>0 then
BrowserType = "Safari"
BrVerPlass = instr(ua,"version")
BrVer = mid(ua,BrVerPlass+8,(instr(BrVerPlass,ua," ")-(BrVerPlass+8)))
end if
if crm>0 then
BrowserType = "Chrome"
BrVer = mid(ua,crm+7,(instr(crm,ua," ")-(crm+7)))
end if
if max>0 then
BrowserType = "Maxthon"
BrVer = mid(ua,max+8,(instr(max,ua," ")-(max+8)))
end if
if opr>0 then
BrowserType = "Opera"
BrVerPlass = instr(ua,"presto")
BrVer = mid(ua,BrVerPlass+7,(instr(BrVerPlass,ua," ")-(BrVerPlass+7)))
end if
if ie4>0 then
BrowserType = "Internet Explorer"
BrVer = "4"
end if
if ie5>0 then
BrowserType = "Internet Explorer"
BrVer = "5"
end if
if ie6>0 then
BrowserType = "Internet Explorer"
BrVer = "6"
end if
if ie7>0 then
BrowserType = "Internet Explorer"
BrVer = "7"
end if
if ie8>0 then
BrowserType = "Internet Explorer"
BrVer = "8"
if ie7>0 then BrVer = BrVer & " (in IE7 compability mode)"
end if
if ie9>0 then
BrowserType = "Internet Explorer"
BrVer = "9"
if ie7>0 then BrVer = BrVer & " (in IE7 compability mode)"
if ie8>0 then BrVer = BrVer & " (in IE8 compability mode)"
end if
OSSel = mid(ua,instr(ua,"(")+1,(instr(ua,";")-instr(ua,"("))-1)
OSver = mid(ua,instr(ua,";")+1,(instr(ua,")")-instr(ua,";"))-1)
if BrowserType = "Internet Explorer" then
OSStart = instr(ua,";")
OSStart = instr(OSStart+1,ua,";")
OSStopp = instr(OSStart+1,ua,";")
OSsel = mid(ua,OSStart+2,(OSStopp-OSStart)-2)
end if
Select case OSsel
case "windows nt 6.1"
OS = "Windows"
OSver = "7"
case "windows nt 6.0"
OS = "Windows"
OSver = "Vista"
case "windows nt 5.2"
OS = "Windows"
OSver = "Srv 2003 / XP x64"
case "windows nt 5.1"
OS = "Windows"
OSver = "XP"
case else
OS = OSSel
End select
Response.write "<br>" & ua & "<br>" & BrowserType & "<br>" & BrVer & "<br>" & OS & "<br>" & OSver & "<br>"
'Use the variables here for whatever you need........
jQuery可以很好地处理这个问题(jQuery.browser)
var ua = $.browser;
if ( ua.mozilla && ua.version.slice(0,3) == "1.9" ) {
alert( "Do stuff for firefox 3" );
}
编辑:正如Joshua在他的评论下面所写的，jQuery。jQuery自1.9版起不再支持browser属性(详情请参阅jQuery 1.9发布说明)。 jQuery开发团队建议使用更完整的方法，例如使用Modernizr库调整UI。
在纯Javascript中，您可以在导航器上执行RegExp匹配。使用userAgent查找Firefox版本:
var uMatch = navigator.userAgent.match(/Firefox\/(.*)$/),
ffVersion;
if (uMatch && uMatch.length > 1) {
ffVersion = uMatch[1];
}
如果不是Firefox浏览器，ffVersion将未定义。
参见工作示例→
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());
