Summary about Java Script JavaScript is a dynamic computer programming language. it is most commonly used as part of web browsers, whose implementations allow client-side scripts to interact with the user, control browser, communicate synchronously, and alter the document content that it displayed. It is also being used in server-side programming, game development and the creation of desktop and mobile applications. JavaScript is a prototype-based scripting language with dynamic typing and has first class functions. Its syntax was influenced by C.JavaScript copies many names and naming conventions from Java, but the two languages are otherwise unrelated and have very different semantics. The key design  principles within JavaScript are taken from self and Scheme programming languages. It is a multi-pradigm language, supporting object-oriented, imperative and functional programming styles. JavaScript was formalized in the ECMAScript language stanard is primarily used as part of  a web browser. This enables programmatic access to computational objects within a host environment.