Javascript : Get operating system and browser information

Problem :

You need to find out your visitor's browser and os version. How to do that with Javascript or Jquery?

Solution :

The existing Javascript solution floating around forums can be easily spoofed and some have not been updated for years. To detect the visitors' browser accurately, please use WhichBrowser. It can detect mobile based browsers as well.

Follow the guidelines on how to install WhichBrowser at Github ( https://github.com/WhichBrowser/WhichBrowser#how-to-use-it )

and after installations... to detect the visitors' browser :

Browsers.browser

// Chrome 27

and to detect the visitors' OS version.

Browsers.os

// Mac OS X 10.8.4