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getify/gist:710231

Created November 22, 2010 16:48
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how to detect IE from JavaScript using conditional comments
Raw
gistfile1.js
// stripped down version just detecting IE
(function(global){
global._isIE = false;
try {
var div = document.createElement("div");
div.innerHTML = "<!--[if IE]><i></i><![endif]-->";
global._isIE = (div.getElementsByTagName("i").length > 0);
} catch(err) { }
})(window);
Raw
gistfile2.js
// fuller version with version detection (in this case, IE6)
(function(global){
global._isIE = false;
global._isIE6 = false;
try {
var div = document.createElement("div"),
all = div.getElementsByTagName("i")
;
div.innerHTML = "<!--[if IE]><i></i><![endif]--><!--[if IE 6]><i></i><![endif]-->";
if (all[0]) global._isIE = true;
if (all[1]) global._isIE6 = true;
} catch(err) { }
})(window);
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getify commented Nov 22, 2010

FYI: the "original" gist (from james padolsey) with a more capable version of this technique for any IE versions, etc: https://gist.github.com/527683

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