Update your skill set for ES 6 and 7 with the ultimate JavaScript guide for pros Professional JavaScript for Web Developers is the essential guide to next-level JavaScript development.

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.

Update your skill set for ES 6 and 7 with the ultimate JavaScript guide for pros

Professional JavaScript for Web Developers is the essential guide to next-level JavaScript development. Written for intermediate-to-advanced 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. This new fourth edition has been updated to cover ECMAScript 6 and 7 (also known as ES2015 and ES2016) and the major re-imagination and departure from ES 5.1; new frameworks and libraries, new techniques, new testing tools, and more are explained in detail for the professional developer, with a practical focus that helps you put your new skills to work on real-world projects.

The latest—and most dramatic—ES release is already being incorporated into JavaScript engines in major browsers; this, coupled with the rise in mobile web traffic increasing demand for responsive, dynamic web design, means that all web developers need to update their skills—and this book is your ideal resource for quick, relevant guidance.

• Get up to date with ECMAScript 6 and 7, new frameworks, and new libraries
• Delve into web animation, emerging APIs, and build systems
• Test more effectively with mocks, unit tests, functional tests, and other tools
• Plan your builds for future ES releases

Even if you think you know JavaScript, new ES releases bring big changes that will affect the way you work. For a professional-level update that doesn't waste time on coding fundamentals, Professional JavaScript for Web Developers is the ultimate resource to bring you up to speed.