hugh 的个人博客

1、获取方法

var ieVersion = document && (function() {
    var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');
// Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment

while (

div.innerHTML = '<!--[if gt IE ' + (++version) + ']><i></i><![endif]-->',

iElems[0]

) {}

return version > 4 ? version : undefined;

}());

2、注意点

ie10以上不支持 conditional comments