JavaScript is the programming language of the web and is more popular and used by software developers today than any other programming language. For nearly 25 years, this bestselling book has been an indispensable guide for JavaScript programmers. The seventh version has been fully updated to cover the 2020 version of JavaScript, and new sections cover classes, modules, iterators, generators, Promises, async/await, and metaprogramming. You'll find illuminating and engaging sample code throughout.