Dies ist jQuery-spezifisch und enthält ein bisschen Hack / Fix für den Umgang mit Chrome. Dies funktioniert zwischen jQuery 1.5.1 und jQuery 1.8.3. Es ist in jQuery 1.9 weg. Vermutlich, weil es zu häufig zu unsachgemäß verwendet wurde und das Web verletzte. Besser erkennen, wenn möglich.
var userAgent = navigator.userAgent.toLowerCase(), browser = '', version = 0; $.browser.chrome = /chrome/.test(navigator.userAgent.toLowerCase()); // Is this a version of IE? if ($.browser.msie) ( userAgent = $.browser.version; userAgent = userAgent.substring(0,userAgent.indexOf('.')); version = userAgent; browser = "Internet Explorer"; ) // Is this a version of Chrome? if ($.browser.chrome) ( userAgent = userAgent.substring(userAgent.indexOf('chrome/') + 7); userAgent = userAgent.substring(0,userAgent.indexOf('.')); version = userAgent; // If it is chrome then jQuery thinks it's safari so we have to tell it it isn't $.browser.safari = false; browser = "Chrome"; ) // Is this a version of Safari? if ($.browser.safari) ( userAgent = userAgent.substring(userAgent.indexOf('safari/') + 7); userAgent = userAgent.substring(0,userAgent.indexOf('.')); version = userAgent; browser = "Safari"; ) // Is this a version of Mozilla? if ($.browser.mozilla) ( //Is it Firefox? if (navigator.userAgent.toLowerCase().indexOf('firefox') != -1) ( userAgent = userAgent.substring(userAgent.indexOf('firefox/') + 8); userAgent = userAgent.substring(0,userAgent.indexOf('.')); version = userAgent; browser = "Firefox" ) // If not then it must be another Mozilla else ( browser = "Mozilla (not Firefox)" ) ) // Is this a version of Opera? if ($.browser.opera) ( userAgent = userAgent.substring(userAgent.indexOf('version/') + 8); userAgent = userAgent.substring(0,userAgent.indexOf('.')); version = userAgent; browser = "Opera"; ) // Now you have two variables, browser and version // which have the right info