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Browser - Returns browser name.
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/** | |
* Gets the browser name or returns an empty string if unknown. | |
* This function also caches the result to provide for any | |
* future calls this function might have. | |
* | |
* @returns {string} | |
*/ | |
var browser = function() { | |
// Return cached result if avalible, else get result then cache it. | |
if (browser.prototype._cachedResult) | |
return browser.prototype._cachedResult; | |
var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0; | |
// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera) | |
var isFirefox = typeof InstallTrigger !== 'undefined';// Firefox 1.0+ | |
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0; | |
// At least Safari 3+: "[object HTMLElementConstructor]" | |
var isChrome = !!window.chrome && !isOpera;// Chrome 1+ | |
var isIE = /*@cc_on!@*/false || !!document.documentMode; // At least IE6 | |
return (browser.prototype._cachedResult = | |
isOpera ? 'Opera' : | |
isFirefox ? 'Firefox' : | |
isSafari ? 'Safari' : | |
isChrome ? 'Chrome' : | |
isIE ? 'IE' : | |
''); | |
}; |
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