Determine the current browsing type
function BrowserType()
{
var userAgent = navigator.userAgent; //Get the userAgent string of the browser
var isOpera = userAgent.indexOf("Opera") > -1; //Determine whether the Opera browser is
var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera || userAgent.indexOf("rv:11") > -1; //Determine whether IE browser
var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //Determine whether IE's Edge browser is
var isFF = userAgent.indexOf("Firefox") > -1; // Determine if Firefox browser
var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //Determine whether the Safari browser is
var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //Determine the Chrome browser
if (isIE)
{
if(userAgent.indexOf("rv:11") > -1){
return "IE11";
}
if(userAgent.indexOf("rv:12") > -1){ //这一段还没验证
return "IE12";
}
var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
reIE.test(userAgent);
var fIEVersion = parseFloat(RegExp["$1"]);
if(fIEVersion == 7)
{ return "IE7";}
else if(fIEVersion == 8)
{ return "IE8";}
else if(fIEVersion == 9)
{ return "IE9";}
else if(fIEVersion == 10)
{ return "IE10";}
else if(fIEVersion == 11)
{ return "IE11";}
else if(fIEVersion == 12)
{ return "IE12";}
else
{ return "0"}//IE版本过低
}//isIE end
if (isFF) { return "FF";}
if (isOpera) { return "Opera";}
if (isSafari) { return "Safari";}
if (isChrome) { return "Chrome";}
if (isEdge) { return "Edge";}
}//myBrowser() end
JS determines the type of the current browser
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