The Definitive Guide: Master the World’s Most-Used Programming Language JavaScript is the programming language of the web and is used by more software developers today than any other programming language. For nearly twenty-five years this bestseller has been the go-to guide for JavaScript programmers. The seventh edition is fully updated to cover the 2020 version of JavaScript, and new chapters cover classes, modules, iterators, generators, Promises, async/await, and metaprogramming. You’ll find