只区分浏览器,不考虑版本
function myBrowser(){var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串if (userAgent.indexOf("Opera") > -1) {return "Opera"}; //判断是否Opera浏览器if (userAgent.indexOf("Firefox") > -1) {return "FF";} //判断是否Firefox浏览器if (userAgent.indexOf("Chrome") > -1){return "Chrome";}if (userAgent.indexOf("Safari") > -1) {return "Safari";} //判断是否Safari浏览器if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera) {return "ie";}; //判断是否IE浏览器
}
//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 } }