JS如何判断浏览器类型和详细区分IE各版本

/判断当前浏览类型

function BrowserType()

{

var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串

var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器

var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器

var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判断是否IE的Edge浏览器

var isFF = userAgent.indexOf("Firefox") > -1; //判断是否Firefox浏览器

var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //判断是否Safari浏览器

var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //判断Chrome浏览器

if (isIE)

{

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

{ 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

//判断是否是IE浏览器

function isIE()

{

var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串

var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器

if(isIE)

{

return "1";

}

else

{

return "-1";

}

}

//判断是否是IE浏览器，包括Edge浏览器

function IEVersion()

{

var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串

var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器

var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判断是否IE的Edge浏览器

if(isIE)

{

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

{ return "0"}//IE版本过低

}

else if(isEdge)

{

return "Edge";

}

else

{

return "-1";//非IE

}

}