Is Selenium a programming language?
Selenium is not a programming langauge.Its a tool or framework for Web Application Automation. It provides API to intract with browsers and it supports all major programming langauge to utilise this API’s. You can execute Test cases written in Selenium framwork in all popular browsers like Chrome, Firefox ,Safari and also in all platforms like Windows, Mac, Linux .
Lean How to Build and Execute Selenum Test Cases