JavaScript 判斷瀏覽器
var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串
var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判斷是否IE<11瀏覽器
var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判斷是否IE的Edge瀏覽器
var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
if(isIE) {
var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
reIE.test(userAgent);
var fIEVersion = parseFloat(RegExp["$1"]);
if(fIEVersion == 7) {
return 7;
} else if(fIEVersion == 8) {
return 8;
} else if(fIEVersion == 9) {
return 9;
} else if(fIEVersion == 10) {
return 10;
} else {
return 6;//IE版本<=7
}
} else if(isEdge) {
return 'edge';//edge
} else if(isIE11) {
return 11; //IE11
}else{
return -1;//不是ie瀏覽器
}
}
JavaScript 判斷瀏覽器