Created
April 13, 2012 09:06
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How I Learned to Stop Worrying and Drop the Semicolon
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| device = function(){ | |
| var flags = {}, ua = navigator.userAgent, el = document.createElement('div') | |
| function flag(names) { | |
| document.body.className += (document.body.className ? ' ' : '') + names | |
| names = names.split(' ') | |
| for (var i = 0; i < names.length; i++) flags[names[i]] = true | |
| } | |
| if (ua.indexOf('MSIE ') > -1) flag('msie'); | |
| if (ua.indexOf('Firefox') > -1) flag('firefox') | |
| if (ua.indexOf('(iPad') > -1) flag('ios ipad') | |
| if (ua.indexOf('(iPhone') > -1 || ua.indexOf('(iPod') > 1) flag('ios iphone'); | |
| el.setAttribute('ongesturestart', 'return;') | |
| if (typeof el.ongesturestart === 'function') flag('touch') | |
| if (window.navigator.standalone) flag('standalone') | |
| if (window.devicePixelRatio >= 2) flag('retina') | |
| if(!!document.createElement('video').canPlayType) flag('video') | |
| return flags | |
| }() |
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| device = (function() { | |
| var flags = {}, ua = navigator.userAgent, el = document.createElement('div'); | |
| function flag(names) { | |
| document.body.className += (document.body.className ? ' ' : '') + names; | |
| names = names.split(' '); | |
| for (var i = 0; i < names.length; i++) { | |
| flags[names[i]] = true; | |
| } | |
| } | |
| if (ua.indexOf('MSIE ') > -1) { | |
| flag('msie'); | |
| } | |
| if (ua.indexOf('Firefox') > -1) { | |
| flag('firefox'); | |
| } | |
| if (ua.indexOf('(iPad') > -1) { | |
| flag('ios ipad'); | |
| } | |
| if (ua.indexOf('(iPhone') > -1 || ua.indexOf('(iPod') > 1) { | |
| flag('ios iphone'); | |
| } | |
| el.setAttribute('ongesturestart', 'return;'); | |
| if (typeof el.ongesturestart === 'function') { | |
| flag('touch'); | |
| } | |
| if (window.navigator.standalone) { | |
| flag('standalone'); | |
| } | |
| if (window.devicePixelRatio >= 2) { | |
| flag('retina'); | |
| } | |
| if(!!document.createElement('video').canPlayType) { | |
| flag('video'); | |
| } | |
| return flags; | |
| }()); |
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Line 11,
ua.indexOf('(iPod') > 1, you meant> -1, right?Also, if your intent in using the opening parenthesis there is to prevent catching the string
iPodas part of another word, you could also opt for the\bword boundary character and instead do/\biPod\b/.test(ua)in case the UA ever switches away from parens (and I believe regex is also faster).