判断ie浏览器 #tags: IE

checkie.js

//ie9-
var isIE9_ = document.all && !window.atob;
 
 
// ie8-
var isIE8_ = document.all && !document.addEventListener;
var isIE8_ = '\v'=='v';
var isIE8_ = !+'\v1';
 
// ie7-
var isIE7_ = document.all && !document.querySelector;