标签:index float pre indexof fun eve amp regex htm
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; //判断是否IE<11浏览器
var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
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浏览器
}
}
这里判断为true包括所有IE浏览器,包括IE11
function isIE() {
if(!!window.ActiveXObject || "ActiveXObject" in window){
document.body.innerHTML = ‘<h1>你的浏览器已过时,请更新你的浏览器</h1>‘;
return true;
}else{
return false;
}
}
标签:index float pre indexof fun eve amp regex htm
原文地址:https://www.cnblogs.com/lovecode3000/p/12742267.html