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Anth Winter
24 lines
542 B
JavaScript
24 lines
542 B
JavaScript
'use strict';
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/**
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* https://gist.github.com/padolsey/527683
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*
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* A short snippet for detecting versions of IE in JavaScript
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* without resorting to user-agent sniffing
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*
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* @returns {Number|undefined} Number of IE version (5-9), otherwise undefined
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*/
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module.exports = function ieVersion() {
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var undef;
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var v = 3;
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var div = document.createElement('div');
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var all = div.getElementsByTagName('i');
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while ((
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div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->',
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all[0]
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));
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return v > 4 ? v : undef;
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};
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