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
对于任何使用angular的PWA应用程序，你都可以在index.html -的body部分中检查浏览器是否受支持
<body>
<div id="browser"></div>
<script>
var operabrowser = true;
operabrowser = (navigator.userAgent.indexOf('Opera Mini') > -1);
if (operabrowser) {
txt = "<p>Browser not supported use different browser...</p>";
document.getElementById("browser").innerHTML = txt;
}
</script>
</body>
其他回答
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........
navigator.sayswho= (function(){ 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 'IE '+(tem[1] || ''); } if(M[1]=== 'Chrome'){ tem= ua.match(/\b(OPR|Edge)\/(\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); // outputs: `Chrome 62`
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(' ');
}) ();
您可以看到浏览器显示的内容，并使用该信息记录或测试多个浏览器。
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|Edge)\/(\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); // outputs: `Chrome 62`
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"
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