Which coding language was the #1 programming language in terms of usage on GitHub in 2015?

JavaScript was the most widely used programming language on GitHub in 2015 due to its versatility and ubiquity in web development. With the increasing demand for interactive and dynamic websites, JavaScript has become an essential language for front-end development. Its ability to run on almost every web browser further contributed to its popularity, making it accessible to a large community of developers. Moreover, advancements in frameworks like AngularJS and libraries like jQuery have made JavaScript even more powerful and efficient. Overall, JavaScript's flexibility, widespread adoption, and continuous development have made it the leading programming language on GitHub in 2015.