Launch into Sencha Touch 2 with this hands-on book, and quickly learn how to develop robust mobile web apps that look and behave like native applications. Using numerous code samples, author Adrian Kosmaczewski guides you every step of the way through this touchscreen-enabled JavaScript framework—from creating your first basic...

Server bottlenecks and failures are a fact of life in any database deployment, but they don’t have to bring everything to a halt. This practical book explains replication, cluster, and monitoring features that can help protect your MySQL system from outages, whether it’s running on hardware, virtual machines, or in the...

Save time and trouble when using Scala to build object-oriented, functional, and concurrent applications. With more than 250 ready-to-use recipes and 700 code examples, this comprehensive cookbook covers the most common problems you’ll encounter when using the Scala language, libraries, and tools. It’s ideal not only for...

Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you’ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and...

Create and publish your own interactive data visualization projects on the Web—even if you have little or no experience with data visualization or web development. It’s easy and fun with this practical, hands-on introduction. Author Scott Murray teaches you the fundamental concepts and methods of D3, a JavaScript library...

Whether you’re building a social media site or an internal-use enterprise application, this hands-on guide shows you the connection between MongoDb and the business problems it’s designed to solve. You’ll learn how to apply MongoDb design patterns to several challenging domains, such as ecommerce, content...

This brain-friendly guide teaches you everything from JavaScript language fundamentals to advanced topics, including objects, functions, and the browser’s document object model. You won’t just be reading—you’ll be playing games, solving puzzles, pondering...

Inside, you’ll find complete...

Welcome to our multi-device world, a world where a user’s experience with one application can span many devices—a smartphone, a tablet, a computer, the TV, and beyond. This practical book demonstrates the variety of ways devices relate to each other, combining to create powerful ensembles that deliver superior, integrated...

When looking for ways to improve your website, how do you decide which changes to make? And which changes to keep? This concise book shows you how to use Multiarmed Bandit algorithms to measure the real-world value of any modifications you make to your site. Author John Myles White shows you how this powerful class of algorithms can...

Take full advantage of Heroku’s cloud-based hosting services. This guide takes you through the inner workings of this PaaS platform and delivers practical advice for architecting your application to work as efficiently as possible. You’ll learn best practices for improving speed and throughput, solving latency issues,...