The JavaScript language is a high-level, interpreted, programming language. It is one of the most popular languages in use today, and is the main programming language used in web development. JavaScript is a prototype-based, multi-paradigm language that supports object-oriented, imperative, and functional programming styles It is a very versatile language, and is used for a wide range of applications, from simple web pages to complex web applications and games. JavaScript is also used in many non-web environments, such as for server-side development and in the creation of desktop and mobile applications.