Forked from scottjehl/detect IE and version number through injected conditional comments.js
Created
December 6, 2010 18:06
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//detect Internet Explorer and version number through injected conditional comments (no UA detect, no need for cond. compilation / jscript check) | |
//version arg is for IE version (optional) | |
//comparison arg supports 'lte', 'gte', etc (optional) | |
var isIE = (function(undefined){ | |
var doc = document, | |
doc_elem = doc.documentElement, | |
cache = {}, | |
elem; | |
return function( version, comparison ) { | |
if(/*@cc_on!@*/true){return false;} | |
var key = [ comparison || '', 'IE', version || '' ].join(' '); | |
if ( cache[ key ] === undefined ) { | |
elem = elem || doc.createElement( 'B' ); | |
elem.innerHTML = '<!--[if '+ key +']><b></b><![endif]-->'; | |
cache[ key ] = !!elem.getElementsByTagName( 'b' ).length; | |
} | |
return cache[ key ]; | |
}; | |
})(); | |
//minified: | |
var isIE=(function(){var doc=document,doc_elem=doc.documentElement,cache={},elem;return function(version,comparison){if(/*@cc_on!@*/true){return false;}var key=[comparison||"","IE",version||""].join(" ");if(cache[key]===undefined){elem=elem||doc.createElement("B");elem.innerHTML="<!--[if "+key+"]><b></b><![endif]-->";cache[key]=!!elem.getElementsByTagName("b").length;}return cache[key];};})(); | |
//is it IE? | |
isIE(); | |
//is it IE6? | |
isIE(6); | |
//is it less than or equal to IE 7? | |
isIE(7,'lte'); |
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