"Multithreaded programs in JavaScript"--Cover.

Web apps would run much better if heavy calculations could be performed in the background, rather than compete with the user interface. With this book, you’ll learn how to use Web Workers to run computationally intensive JavaScript code in a thread parallel to the UI. Yes, multi-threaded programing is complicated, but Web Workers provide a simple API that helps you be productive without the complex algorithms. If you have an intermediate to advanced understanding of JavaScript—especially event handling and callbacks—you’re ready to tackle Web Workers with the tools in this example-driven guide. Start creating Web Workers and understand what they can and can’t do Determine which browser versions support the API Use dedicated Web Workers for tasks that consume a lot of CPU, such as data parsing Explore use cases for creating inline Workers, such as encapsulating a web app in one page Create a shared Worker to communicate multiple web app instances to the server, and other uses Learn best practices for debugging Web Workers Apply Web Workers within the server-side Node environment

Bestselling author MacDonald shows readers how to best use HTML5's new features to create an effective Web experience for visitors.

The HTML5 Programmer’s Reference aims to provide everything a programmer needs for understanding and using the new HTML5 family of standards. Previous HTML standards were focused on defining tags for marking up documents. The HTML5 family of standards not only includes new semantic tags but also defines exciting new JavaScript APIs that can be used to build rich, interactive web applications for both mobile and desktop platforms. The HTML5 Programmer’s Reference focuses on providing real-world non-trivial examples to demonstrate concepts. Chapters include both in-depth discussions and full references for all HTML5 features, as well as extras like how to find the standards, the history of their evolution, and other examples and helpful resources. With this book the reader will learn everything they need to know to build the next generation of web applications.

Use the latest version of HTML to create dynamic Web pages HTML5 is the latest iteration of the standard markup language for creating Web pages. It boasts extensive updates from its predecessor and allows you to incorporate rich media content into a site without any dependence on extra software such as Flash. Packed with hundreds of screen shots, this visual guide introduces you to the many new features and abilities of HTML5 and shows you the many exciting new possibilities that exist for designing dynamic Web pages. Offers visual learners a solid reference on HTML5, the latest version of the standard markup language for designing Web pages Demonstrates how to use HTML5 to create Web pages that feature the latest in rich media content Provides easy-to-understand examples that cover a variety of topics to get you up and running with HTML5 Features a companion Web site that contains all the code needed to learn HTML5 HTML5: Your visual blueprint for designing effective Web pages opens your eyes to the world of possibilities that exist with the new version of the popular markup language. Adam R. McDaniel is a Web developer, technical architect, and security analyst, who has contributed to the Linux Kernel.

Use Service Workers to Turbocharge Your Web Apps “You have made an excellent decision in picking up this book. If I was just starting on my learning path to mastery of Progressive Web Apps, there are not many folks I would trust more to get me there than John.” —Simon MacDonald, Developer Advocate, Adobe Software developers have two options for the apps they build: native apps targeting a specific device or web apps that run on any device. Building native apps is challenging, especially when your app targets multiple system types—i.e., desktop computers, smartphones, televisions—because user experience varies dramatically across devices. Service Workers—a relatively new technology—make it easier for web apps to bridge the gap between native and web capabilities. In Learning Progressive Web Apps, author John M. Wargo demonstrates how to use Service Workers to enhance the capabilities of a web app to create Progressive Web Apps (PWA). He focuses on the technologies that enable PWAs and how to use those technologies to enhance your web apps to deliver a more native-like experience. Build web apps a user can easily install on their local system and that work offline or on low-quality networks Utilize caching strategies that give you control over which app resources are cached and when Deliver background processing in a web application Implement push notifications that enable an app to easily engage with users or trigger action from a remote server Throughout the book, Wargo introduces each core concept and illustrates the implementation of each capability through several complete, operational examples. You’ll start with simple web apps, then incrementally expand and extend them with state-of-the-art features. All example source code is available on GitHub, and additional resources are available on the author’s companion site, learningpwa.com. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

HTML5 is here, and with it, web applications take on a power, ease, scalability, and responsiveness like never before. In this book, developers will learn how to use the latest cutting-edge HTML5 web technology—available in the most recent versions of modern browsers—to build web applications with unparalleled functionality, speed, and responsiveness. Explains how to create real-time HTML5 applications that tap the full potential of modern browsers Provides practical, real-world examples of HTML5 features in action Shows which HTML5 features are supported in current browsers Covers all the new HTML5 APIs to get you up to speed quickly with HTML5