You will find resources and examples for JavaScript beginners as well as support for JavaScript experts. Learn JavaScript or free with our easy to use input output machine. JavaScript is a lightweight, cross-platform, single-threaded, and interpreted compiled programming language. It is also known as the scripting language for web pages. JavaScript lets developers modify the structure and presentation of a page by adding, removing, and altering markup and styles in response to any combination of user interaction and internal logic. This website offers a comprehensive guide to learn JavaScript programming language, from basics to advanced topics. You can find sections on syntax, variables, data types, operators, control flow, functions, objects, classes, and more.