Learn basic and advanced uses of WebPagetest, the performance measurement tool for optimizing websites. This practical guide shows users new to this tool how run tests and interpret results, and helps experienced users gain a better and more thorough understanding of hidden features in WebPagetest that make testing easier.

Written by WebPagetest power users and performance experts, this book will help web developers and frontend engineers solve the problem of slow sites. Topics include: Basic test setup--shows beginners how to get meaningful resultsAdvanced test setup--provides another level of technical depth by explaining features not thoroughly documented at webpagetest.orgAnalysis of results--helps you understand of how to interpret test resultsPrivate instance setup--teaches power users the intricacies of the webpagetest private instance and how it worksAPI and external tools--provides a detailed reference for the API and demonstrates tools already using the API to extend WebPagetest

Gain the confidence you need to apply machine learning in your daily work. With this practical guide, author Matthew Kirk shows you how to integrate and test machine learning algorithms in your code, without the academic subtext. Featuring graphs and highlighted code examples throughout, the book features tests with Python's Numpy, Pandas, Scikit-Learn, and SciPy data science libraries. If you're a software engineer or business analyst interested in data science, this book will help you: Reference real-world examples to test each algorithm through engaging, hands-on exercises Apply test-driven development (TDD) to write and run tests before you start coding Explore techniques for improving your machine-learning models with data extraction and feature development Watch out for the risks of machine learning, such as underfitting or overfitting data Work with K-Nearest Neighbors, neural networks, clustering, and other algorithms

Discover the freshest cutting-edge layout tools found within CSS3 and hone the skills you'll need to create advanced design patterns for websites and apps. The book uses a tutorial-led approach to demonstrate real-world examples of new techniques, while providing an accessible reference guide for subsequent referral. Pro CSS3 Layout Techniques teaches you how to make the most of CSS3's existing specification, including those parts of the specification already widely implemented, as well as the upcoming modules that are still being developed by the W3C. After reading this book you'll be able to confidently develop sophisticated, flexible layouts that aren't possible with CSS2.1. CSS1 allowed designers to separate content from presentation for the first time and CSS2 cemented support for advanced typographical control, but neither specification provided more than rudimentary layout control. CSS3's latest additions allow designers to craft fully responsive, sophisticated layouts without the need for complex scripts or smoke-and-mirror workarounds. CSS3 is still in active development, with browser vendors racing against each other to implement the latest recommendations from the W3C. Pro CSS3 Layout Techniques will help you cut through the waffle and get straight to the heart of what works now, while showing you how to be ready for the future of CSS! What You'll Learn Review major CSS3 layout modules including multi-column, regions, and grid Speed up your workflow with CSS libraries and frameworks Use libraries, frameworks, and polyfills Overcome layout challenges of the web Who This Book Is For Web designers and developers

Some aspects of the CSS formatting model may seem counterintuitive at first, but as you'll learn in this practical guide, the more you work with these features, the more they make sense. Author Eric Meyer gives you a good grounding in CSS visual rendering, from element box rules and concepts to the specifics of managing tricky layouts for block-level and inline elements. Short and sweet, this book is an excerpt from the upcoming fourth edition of CSS: The Definitive Guide. When you purchase either the print or the ebook edition of Basic Visual Formatting in CSS, you'll receive a discount on the entire Definitive Guide once it's released. Why wait? Learn how to bring life to your web pages now. Learn the details of element box types, including block, inline, inline-block, list-item, and run-in boxes Change the type of box an element generates, from inline to block, or list-item to inline Dive into the complexities of horizontal and vertical block-box formatting Explore key concepts of inline layout: anonymous text, em box, content area, leading, inline box, and line box Understand formatting differences between nonreplaced and replaced inline elements

This practical guide shows intermediate and advanced web and mobile app developers how to build highly scalable Java applications in the cloud with Google App Engine. The flagship of Google's Cloud Platform, App Engine hosts your app on infrastructure that grows automatically with your traffic, minimizing up-front costs and accommodating unexpected visitors. You'll learn hands-on how to perform common development tasks with App Engine services and development tools, including deployment and maintenance. For Java applications, App Engine provides a J2EE standard servlet container with a complete Java 7 JVM and standard library. Because App Engine supports common Java API standards, your code stays clean and portable. Get a hands-on introduction to App Engine's tools and features, using an example application Simulate App Engine on your development machine directly from Eclipse Structure your app into individually addressable modules, each with its own scaling configuration Exploit the power of the scalable Cloud Datastore, using queries, transactions, and data modeling with JPA Use Cloud SQL for standard relational databases with App Engine applications Learn how to deploy, manage, and inspect your application on Google infrastructure

In this practical guide, CSS expert Lea Verou provides 47 undocumented techniques and tips to help intermediate-to advanced CSS developers devise elegant solutions to a wide range of everyday web design problems. Rather than focus on design, CSS Secrets shows you how to solve problems with code. You'll learn how to apply Lea's analytical approach to practically every CSS problem you face to attain DRY, maintainable, flexible, lightweight, and standards-compliant results. Inspired by her popular talks at over 60 international web development conferences, Lea Verou provides a wealth of information for topics including: Backgrounds and Borders Shapes Visual Effects Typography User Experience Structure and Layout Transitions and Animations

Description Microservices promise a better way to sustainably deliver business impact. Rather than a single monolithic unit, applications built in this style are composed from loosely-coupled, autonomous services. Microservices in Action is a practical book about building and deploying microservice-based applications. Written for developers and architects with a solid grasp of service-oriented development, it tackles the challenge of putting microservices into production. Key features * Review of microservice architecture * Written by authors with daily, hands-on experience * Building a delivery pipeline for microservices Audience Readers should be intermediate developers with some knowledge of enterprise application architecture. About the technology Microservices change the dev process, maximizing the efficiency and independence of small teams. To be successful, developers, team leaders, and architects need to master both the implementation details and the big picture of how microservices work in a production environment. Morgan Bruce and Paulo A. Pereira have years of experience building distributed applications, with particular expertise in the high-stakes finance and identity verification industries. They work daily with microservices in a production environment using the tools and techniques presented in this book.

The Top-Selling, De Facto Guide to SOA--Now Updated with New Content and Coverage of Microservices! For more than a decade, Thomas Erl's best-selling Service-Oriented Architecture: Concepts, Technology, and Design has been the definitive end-to-end tutorial on SOA, service-orientation, and service technologies. Now, Erl has thoroughly updated the industry's de facto guide to SOA to reflect new practices, technologies, and strategies that have emerged through hard-won experience and creative innovation. This Second Edition officially introduces microservices and micro task abstraction as part of service-oriented architecture and its associated service layers. Updated case study examples and illustrations further explain and position the microservice model alongside and in relation to more traditional types of services. Coverage includes: * Easy-to-understand, plain English explanations of SOA and service-orientation fundamentals (as compiled from series titles) * Microservices, micro task abstraction, and containerization * Service delivery lifecycle and associated phases * Analysis and conceptualization of services and microservices * Service API design with REST services, web services, and microservices * Modern service API and contract versioning techniques for web services and REST services * Up-to-date appendices with service-orientation principles, REST constraints, and SOA patterns (including three new patterns) Service-Oriented Architecture: Analysis and Design for Services and Microservices, Second Edition, will be indispensable to application architects, enterprise architects, software developers, and any IT professionals interested in learning about or responsible for designing or implementing modern-day, service-oriented solutions. Chapter 1: Introduction Chapter 2: Case Study Backgrounds Part I: Fundamentals Chapter 3: Understanding Service-Orientation Chapter 4: Understanding SOA Chapter 5: Understanding Layers with Services and Microservices Part II: Service-Oriented Analysis and Design Chapter 6: Analysis and Modeling with Web Services and Microservices Chapter 7: Analysis and Modeling with REST Services and Microservices Chapter 8: Service API and Contract Design with Web Services Chapter 9: Service API and Contract Design with REST Services and Microservices Chapter 10: Service API and Contract Versioning with Web Services and REST Services Part III: Appendices Appendix A: Service-Orientation Principles Reference Appendix B: REST Constraints Reference Appendix C: SOA Design Patterns Reference Appendix D: The Annotated SOA Manifesto

Threads are essential to Java programming, but learning to use them effectively is a nontrivial task. This new edition of the classic "Java Threads" shows you how to take full advantage of Java's threading facilities and brings you up-to-date with the watershed changes in Java 2 Standard Edition version 5.0 (J2SE 5.0). It provides a thorough, step-by-step approach to threads programming.

Java's threading system is simple relative to other threading systems. In earlier versions of Java, this simplicity came with tradeoffs: some of the advanced features in other threading systems were not available in Java. J2SE 5.0 changes all that: it provides a large number of new thread-related classes that make the task of writing multithreaded programs that much easier.

You'll learn where to use threads to increase efficiency, how to use them effectively, and how to avoid common mistakes. This book discusses problems like deadlock, race conditions, and starvation in detail, helping you to write code without hidden bugs.

"Java Threads," Third Edition, has been thoroughly expanded and revised. It incorporates the concurrency utilities from java.util.concurrent throughout. New chapters cover thread performance, using threads with Swing, threads and Collection classes, thread pools, and threads and I/O (traditional, new, and interrupted). Developers who cannot yet deploy J2SE 5.0 can use thread utilities provided in the Appendix to achieve similar functionality with earlier versions of Java.

Topics include:

Lock starvation and deadlock detection

Atomic classes and minimal synchronization (J2SE 5.0)

Interaction of Java threads with Swing, I/O, and Collection classes

Programmatically controlled locks and condition variables (J2SE 5.0)

Thread performance and security

Thread pools (J2SE 5.0)

Thread groups

Platform-specific thread scheduling

Task schedulers (J2SE 5.0)

Parallelizing loops for multiprocessor machines

In short, this new edition of "Java Threads" covers everything you need to know about threads, from the simplest animation program to the most complex applications. If you plan to do any serious work in Java, you will find this book invaluable.

Scott Oaks is a senior software engineer for the Java Performance Engineering group at Sun Microsystems and the author of four books in the O'Reilly Java series.

Formerly a senior systems engineer at Sun Microsystems, Henry Wong is an independent consultant working on various Java related projects.

Learn the basics of using the micro: bit, an open source hardware ARM-based embedded system used to teach computer programming, to build a series of 10 different gadgets from scratch! You'll use the micro: bit to make: a scrolling name tag, animated LED displays a high-tech compass. a handheld tilting game with a buzzer and saved high score a carnival-like strength tester a powered cooling fan helmet an electronic musical instrument a security system that sends alerts to your computer when someone enters the room. a wheeled robot an alert to water your plants You will learn how simple electrical devices like speakers, motors, buzzers and fans work. You'll understand electronic components like resistors, force resistors, photoresistors, LEDs, and Op Amps, as well as Infrared distance sensors and soil moisture sensors. You'll also get a beginner's look at micropython, one of the fastest-growing computer languages. In this book you will combine multiple disciplines -- electronics, programming, and engineering -- to build a series of successful gadgets. Everything is explained with lots and lots of full-color line drawings. No prior experience is necessary. You'll have fun while you learn a ton!

Is Responsive Web Design (RWD) slowing your site down? It doesn't have to. With this concise book, you'll learn practical techniques for improving performance with RWD, including a default set of guidelines you can use as an easy starting point. Web performance researcher and evangelist Guy Podjarny walks you through several existing solutions for dealing with RWD performance problems, and offers advice for choosing optimizations that will be most useful for your needs. RWD performance problems stem from excessive downloads of resources, including images, JavaScript and CSS, and HTML--downloads designed to let your web application adapt to different screen sizes. Podjarny presents a series of increasingly larger-scope solutions to each issue, including client-side techniques and RESS (Responsive + Server Side Components). Address performance issues by starting with Podjarny's default guidelines Use a JavaScript image loader and an image transcoding service to create Responsive Images Reduce JavaScript and CSS downloads with asynchronous scripts, conditional loading, and multi-viewport CSS Prioritize resources to avoid excess content in RWD and defer the load of any content that's not critical Explore server-side Adaptive Delivery and RESS solutions as an alternative to "pure" RWD Guy Podjarny, or Guypo for short, is the Chief Technology Officer (CTO) of Akamai's Web Experience business unit.

As a web developer, you may not want to spend time making your web app secure, but it definitely comes with the territory. This practical guide provides you with the latest information on how to thwart security threats at several levels, including new areas such as microservices. You'll learn how to help protect your app no matter where it runs, from the latest smartphone to an older desktop, and everything in between. Author John Paul Mueller delivers specific advice as well as several security programming examples for developers with a good knowledge of CSS3, HTML5, and JavaScript. In five separate sections, this book shows you how to protect against viruses, DDoS attacks, security breaches, and other nasty intrusions. Create a security plan for your organization that takes the latest devices and user needs into account Develop secure interfaces, and safely incorporate third-party code from libraries, APIs, and microservices Use sandboxing techniques, in-house and third-party testing techniques, and learn to think like a hacker Implement a maintenance cycle by determining when and how to update your application software Learn techniques for efficiently tracking security threats as well as training requirements that your organization can use

Intrigued by the possibilities of developing web applications in the cloud? With this concise book, you get a quick hands-on introduction to OpenShift, the open source Platform as a Service (PaaS) offering from Red Hat. You'll learn the steps necessary to build, deploy, and host a complete real-world application on OpenShift, without having to read long, detailed explanations of the technologies involved.

Though the book uses Python, application examples in other languages are available on GitHub. If you can build web applications, use a command line, and program in Java, Python, Ruby, Node.js, PHP, or Perl, you're ready to get started.Dive in and create your first example application with OpenShiftModify the example with your own code and hot-deploy the changesAdd components such as a database, task scheduling, and monitoringUse external libraries and dependencies in your applicationDelve into networking, persistent storage, and backup optionsExplore ways to adapt your team processes to use OpenShiftLearn OpenShift terms, technologies, and commandsGet a list of resources to learn more about OpenShift and PaaS

Learn how to build a full-stack application with Backbone.js by taking advantage of JavaScript modules, workflow automation, and Backbone's interface building blocks. With this practical guide, author Patrick Mulder takes experienced backend developers and JavaScript programmers through the steps necessary to create a fully functional single-page application.

Backbone's rich ecosystem of plugins makes applications easier to design and scale, but knowing which tools to use for your project can be tricky. How do you combine views and the data layer with Backbone, or serve and deploy JavaScript assets? You'll not only learn the answers to these and many other questions; you'll also discover Backbone's vast number of use cases.Get started quickly by using a Backbone.js and BrowserifyTrack state and organize data with Backbone models and collectionsCapture events from users by using views and manipulating the DOMCombine Backbone views with advanced HTML templatesUse Backbone to browse remote data sources from an APIAuthenticate and authorize client-side interactionsBuild a backend API with Node.js and RestifySet up workflow automation with Bower, Grunt, Yeoman, and RequireJS

Get a Jump Start on building applications with Foundation today! Developed by Zurb, Foundation is a hugely popular CSS framework that's making the once-arduous process of crafting responsive web designs a breeze! Foundation was the first open-source front-end framework to be responsive, the first to be semantic, as well as the first to take a mobile-first approach. Read this book and discover why Foundation is fast becoming a favorite tool of top web designers. In just one weekend with this hands-on tutorial, you'll learn how to: Integrate Foundation into your projects Understand the basic Foundation template Utilize Foundation's impressive array of built-in components Work with Foundation's grid Customize Foundation to work with any project And much more!

If you're like most developers, you rely heavily on JavaScript to build interactive and quick-responding web applications. The problem is that all of those lines of JavaScript code can slow down your apps. This book reveals techniques and strategies to help you eliminate performance bottlenecks during development. You'll learn how to improve execution time, downloading, interaction with the DOM, page life cycle, and more. Yahoo! frontend engineer Nicholas C. Zakas and five other JavaScript experts -- Ross Harmes, Julien Lecomte, Steven Levithan, Stoyan Stefanov, and Matt Sweeney -- demonstrate optimal ways to load code onto a page, and offer programming tips to help your JavaScript run as efficiently and quickly as possible. You'll learn the best practices to build and deploy your files to a production environment, and tools that can help you find problems once your site goes live. * Identify problem code and use faster alternatives to accomplish the same task * Improve scripts by learning how JavaScript stores and accesses data * Implement JavaScript code so that it doesn't slow down interaction with the DOM * Use optimization techniques to improve runtime performance * Learn ways to ensure the UI is responsive at all times * Achieve faster client-server communication * Use a build system to minify files, and HTTP compression to deliver them to the browser

Developing applications in a reactive style ensures that the experience is always responsive. Akka.NET is a framework for building distributed, message-driven applications which are able to stay responsive for the user even in the face of failure or when faced with more users. It makes it easy for .NET developers to write applications which are able to react to changes in their environment. Reactive Applications with Akka.NET begins with an overview of reactive and a sample application written in the reactive style. Readers will learn concepts of the actor model and what these mean in a realworld reactive context. This hands-on book builds on fundamental concepts that teach how to create reliable and resilient applications. It also teaches useful Akka.NET features for building real-world applications. By the end of the book, readers will be able to look at a problem domain and understand how to create applications which are able to withstand modern demands. Key features: * Hands-on examples that build on fundamental concepts * Building real-world applications with Akka.NET * Designing an Internet of Things architecture with reactive in mind * How to create applications that can withstand modern demands AUDIENCE Readers should be comfortable with C# or F# and the .NET framework. No previous reactive experience needed. ABOUT THE TECHNOLOGY Developing applications in a reactive style ensures that the experience is always responsive. Akka.NET is a framework for building distributed, message-driven applications which are able to stay responsive for the user even in the face of failure or when faced with more users.

Create beautiful, interactive images on the Web with RaphaelJS, the JavaScript library that lets you draw Scalable Vector Graphics (SVG) right in the browser. With this concise guide, you'll quickly learn how to paint the screen with shapes and colors that you can turn into lively, animated graphics and visualizations. Author Chris Wilson (Time.com) shows you how to create Raphael objects and manipulate them with animation, transformations, and other techniques, using just a few lines of code. Packed with working examples, sample code, and cool hands-on projects, RaphaelJS is ideal for new and experienced JavaScript programmers alike. Create images that work on browsers new and old, as well as mobile devices Start with the basics - shapes, colors, transformations, sets, and text Learn how to build custom curves and shapes with paths Code animations that move through space, follow paths, or change direction Make your artwork come alive through user interaction Bind a dataset to a collection of visual objects - the basis of data visualization Learn techniques to make your detailed visuals stand out on screens of any size

Build kickass websites and applications for all mobile (and non-mobile) platforms by adding HTML5 and CSS3 to your web development toolkit. With this hands-on book, you'll learn how to develop web apps that not only work on iOS, Android, Blackberry, and Windows Phone, but also perform well and provide good user experience. With lots of code and markup examples, you'll learn best practices for using HTML5 features, including new web forms, SVG, Canvas, localStorage, and related APIs. You'll also get an in-depth look at CSS3, and discover how to design apps for large monitors and tiny screens alike. Learn HTML5's elements, syntax, and semantics Build forms that provide enhanced usability with less JavaScript Explore HTML5 media APIs for graphics, video, and audio Enable your applications to work offline, using AppCache, localStorage, and other APIs Learn what you need to know about CSS3 selectors and syntax Dive into CSS3 features such as multiple backgrounds, gradients, border-images, transitions, transforms, and animations Make your web applications usable, responsive, and accessible. Design for performance, user experience, and reliability on all platforms

JavaScript Robotics is on the rise. Rick Waldron, the lead author of this book and creator of the Johnny-Five platform, is at the forefront of this movement. Johnny-Five is an open source JavaScript Arduino programming framework for robotics. This book brings together fifteen rock star programmers, each creating a unique Johnny-Five robot step-by-step, and offering tips and tricks along the way. Experience with JavaScript is a prerequisite.

XForms Essentials is an introduction and practical guide to the new XForms specification. Written by Micah Dubinko, a member of the W3C XForms working group and an editor of the specification, the book explains the how and why of XForms, showing readers how to take advantage of them without having to write their own code. You'll learn how to integrate XForms with both HTML and XML vocabularies, and how XForms can simplify the connection between client-based user input and server-based processing. If you work with forms, HTML, or XML information, XForms Essentials will provide you with a much simpler route to more sophisticated interactions with users.

Crisp, clear graphics are a requirement for any application that presents and interprets data. D3.js is an amazing JavaScript framework that empowers users to create scalable, data-driven graphics ranging from simple charts to fantastic interactive visualizations. Based on the SVG standard, D3 takes the built-in programmability of vector graphics to the extreme. Developers can start with a structure, dataset, or algorithm and programmatically generate static, interactive, or animated images that responsively scale to any screen or web environment. D3.js in Action, a practical tutorial for creating interactive graphics and data driven applications using D3.js, prepares readers to integrate D3.js into their web development process and transform any site into a more engaging and sophisticated user experience. It starts with in-depth explanations of D3's out-of-the-box layouts, along with dozens of practical use cases that align with different types of visualizations. Then, it explores practical techniques for content creation, animation, and representing dynamic data, including interactive graphics and data streamed live over the web. Finally, it shows how to use D3's rich interaction model as the foundation for a complete web application. RETAIL SELLING POINTS Dozens of practical use cases In-depth explanations of D3's out-of-the-box layouts Simplifies choosing the right metrics for the job AUDIENCE Readers will need basic HTML, CSS, and JavaScript skills. No experience with D3 or SVG required. ABOUT THE TECHNOLOGY D3.js is a javascript information visualization library used to create data visualization in the form of traditional charts (scatterplots, histograms, graphs) as well as network diagrams and geographic maps. It's used by such organizations as the New York Times for its interactive graphics, as well as in industry for real-time dashboards, and in the scholarly community for publication of research in interactive and dynamic form.

This fast-moving guide introduces web application development with Haskell and Yesod, a potent language/framework combination that supports high-performing applications that are modular, type-safe, and concise. Fully updated for Yesod 1.4, this second edition shows you how Yesod handles widgets, forms, persistence, and RESTful content. Author Michael Snoyman also introduces various Haskell tools to supplement your basic knowledge of the language. By the time you finish this book, you'll create a production-quality web application with Yesod's ready-to-use scaffolding. You'll also examine several real-world examples, including a blog, a wiki, a JSON web service, and a Sphinx search server. Build a simple application to learn Yesod's foundation datatype and Web Application Interface (WAI) Output HTML, CSS, and Javascript with Shakespearean template languages Get an indepth look at Yesod's core monads for producing cleaner, more modular code Probe Yesod's internal workings: learn the request handling process for a typical application Build forms on top of widgets by implementing the yesod-form declarative API Learn how Yesod and Haskell handle persistence and session data Serve an HTML page and a machine-friendly JSON page from the same URL