The combo of client side and server side coding means the need of both scripts in an application. Without the mutual support of each other, the application cannot run properly. Usually medium to large and dynamic websites are created using both scripts. Google Web Toolkit, Pyjamas and Tersus are among the readymade software development kit (SDK) that offers to write code in both client side and server side. Some other combinations are – Ruby & Python with MySQL, LAPR (Linux/Apache/PostgreSQL/Ruby on Rails) set.