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Function to detect Internet Explorer.
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| /* | |
| Used like this... | |
| detectIE('class-to-add-to-html-tag') | |
| */ | |
| function detectIE (classToAdd) { | |
| 'use strict' | |
| // Exit, if no class specified. | |
| if (!classToAdd) { | |
| throw new Error('detectIE: No "IE" class was specified.') | |
| } | |
| // Do stuff. | |
| function wut () { | |
| // Reference to `<html>` tag. | |
| var htmlTag = document.documentElement | |
| // Get current body class. | |
| var className = htmlTag.className | |
| // Regex for class="...". | |
| var regex = new RegExp(classToAdd, 'g') | |
| // Does it have the "IE" class? | |
| var hasClass = className && className.match(regex) | |
| if (!hasClass) { | |
| className = className.split(' ') | |
| className.push(classToAdd) | |
| className = className.join(' ') | |
| htmlTag.className = className | |
| } | |
| } | |
| /* jshint ignore:start */ | |
| // IE10 and older. | |
| window.eval('/*@cc_on@*/ /*@ wut() @*/') | |
| /* jshint ignore:end */ | |
| // IE11. | |
| if (window.navigator.userAgent.match(/trident\/7\.0/gi)) { | |
| wut() | |
| } | |
| } |
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