How can you detect the version of a browser?
问题 I\'ve been searching around for code that would let me detect if the user visiting the website has Firefox 3 or 4. All I have found is code to detect the type of browser but not the version. How can I detect the version of a browser like this? 回答1: You can see what the browser says , and use that information for logging or testing multiple browsers. navigator.sayswho= (function(){ var ua= navigator.userAgent, tem, M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) ||