The ultimate JavaScript guide, updated to ECMAScript® 2019 Professional JavaScript for Web Developers is the essential guide to Professional next-level JavaScript development. Written for intermediate-toadvanced programmers, this book jumps right into the technical details to help you clean up your code and become a more sophisticated JavaScript developer. From JavaScript-specific object-oriented programming and inheritance, to combining JavaScript with HTML and other markup languages, expert instruction walks you through the fundamentals and beyond. Even if you think you know JavaScript, with major browsers' JavaScript engines already incorporating many ES changes and the rise in mobile web traffic increasing demand for responsive, dynamic web design, all web developers need to update their JavaScript skills. Professional JavaScript for Web Developers, 4th Edition: Brings you up to date on ECMAScript up through ES2019, including classes, promises, async/await, proxies, iterators, generators, symbols, modules, and spread/rest operators. Delves into fundamental web development concepts such as the document object model (DOM), browser object model (BOM), events, forms, JSON, error handling, and web animation. Covers advanced browser APIs such as geolocation, web workers, service workers, fetch, atomics, streams, message channels, performance timelines, and web cryptography. Provides hundreds of working code examples that demonstrate concepts clearly and concisely for you to work with hands-on.

Wrox Professional guides are written by working programmers to meet the real-world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.