JavaScript is described as '(sometimes shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but also used in many non-browser environments' and is a leading programming language in the development category. There are more than 50 alternatives to JavaScript for a variety of platforms, including Linux, Windows, Mac, BSD and Web-based apps. The best JavaScript alternative is Python, which is both free and Open Source. Other great apps like JavaScript are Java, PHP, TypeScript and Ruby.