You don't have to accept slow Ruby or Rails performance. In this comprehensive guide to Ruby optimization, you'll learn how to write faster Ruby code--but that's just the beginning. See exactly what makes Ruby and Rails code slow, and how to fix it. Alex Dymo will guide you through perils of memory and CPU optimization, profiling, measuring, performance testing, garbage collection, and tuning. You'll find that all those "hard" things aren't so difficult after all, and your code will run orders of magnitude faster. This is the first book ever that consolidates all the Ruby performance optimization advice in one place. It's your comprehensive guide to memory optimization, CPU optimization, garbage collector tuning, profiling, measurements, performance testing, and more. You'll go from performance rookie to expert. First, you'll learn the best practices for writing Ruby code that's easy not only on the CPU, but also on memory, and that doesn't trigger the dreaded garbage collector. You'll find out that garbage collection accounts for 80% of slowdowns, and often takes more than 50% of your program's execution time.And you'll discover the bottlenecks in Rails code and learn how selective attribute loading and preloading can mitigate the performance costs of ActiveRecord. As you advance to Ruby performance expert, you'll learn how profile your code, how to make sense out of profiler reports, and how to make optimization decisions based on them. You'll make sure slow code doesn't creep back into your Rails application by writing performance tests, and you'll learn the right way to benchmark Rails. And finally, you'll dive into the Ruby interpreter internals to really understand why garbage collection makes Ruby so slow, and how you can tune it up. What You Need: Some version of Ruby. The advice from this book applies to all modern Ruby versions from 1.9 to 2.2. 80% of the material will also be useful for legacy Ruby 1.8 users, and there is 1.8-specific advice as well.

Introduction to Computational Models with Python explains how to implement computational models using the flexible and easy-to-use Python programming language. The book uses the Python programming language interpreter and several packages from the huge Python Library that improve the performance of numerical computing, such as the Numpy and Scipy modules. The Python source code and data files are available on the author's website. The book's five sections present: An overview of problem solving and simple Python programs, introducing the basic models and techniques for designing and implementing problem solutions, independent of software and hardware tools Programming principles with the Python programming language, covering basic programming concepts, data definitions, programming structures with flowcharts and pseudo-code, solving problems, and algorithms Python lists, arrays, basic data structures, object orientation, linked lists, recursion, and running programs under Linux Implementation of computational models with Python using Numpy, with examples and case studies The modeling of linear optimization problems, from problem formulation to implementation of computational models This book introduces the principles of computational modeling as well as the approaches of multi- and interdisciplinary computing to beginners in the field. It provides the foundation for more advanced studies in scientific computing, including parallel computing using MPI, grid computing, and other methods and techniques used in high-performance computing.

When traditional web development techniques don't cut it, try React. Use React to create highly interactive web pages faster and with fewer errors. With a little JavaScript experience under your belt, you'll be up and running in no time creating dynamic web applications. Craft isolated components that make your apps easier to develop and maintain, with plenty of guidance on best practices. Set up automated tests, and make pages render fast for your users. See how to use your React skills to integrate with other front-end technologies when needed. Dive right into React by defining components, the basic building blocks of a React application. Integrate modern JavaScript language features such as classes and arrow functions in your app. Analyze the relationships in your data to isolate state, and sync the data model with what your users see. Once you're familiar with how a React application works, organize your code base with modules. Configure a production build and deliver your app as efficiently as possible with Webpack. Master testing with React-specific advice and tools to catch the most bugs with the least amount of code. Learn the basics of the Redux library. Define actions and manage an immutable central state with reducers, then connect Redux to your React components to build even larger and more complex interfaces. Package your React code as a standalone widget so anyone can use it in their own applications. Reuse existing JavaScript code in your React components, and build a new React view on top of an existing data model shared with a legacy application. When you finish this book, you'll be well on your way to solving your front-end problems with React. What You Need: Node.js 6.x or later, and a modern web browser

In this book, Graham Mayeda demonstrates how Watsuji Tetsuro and Kuki Shuzo, two twentieth-century Japanese philosophers, criticize and interpret Heideggerian philosophy, articulating traditional Japanese ethics in a modern idiom.

iOS 11, Swift 4, and Xcode 9 provide many new APIs for iOS developers. With this cookbook, you'll learn more than 170 proven solutions for tackling the latest features in iOS 11 and watchOS 4, including new ways to use Swift and Xcode to make your day-to-day app development life easier. This collection of code-rich recipes also gets you up to speed on continuous delivery and continuous integration systems. Ideal for intermediate and advanced iOS developers looking to work with the newest version of iOS, these recipes include reusable code on GitHub, so you can put them to work in your project right away. Among the topics covered by this book: New features in Swift 4 and Xcode 9 Tools for continuous delivery and continuous integration Snapshot testing and test automation Creating document-based applications Updated Map view and Core Location features iOS 11's Security and Password Autofill Data storage with Apple's Core Data Creating lively user interfaces with UI Dynamics Building iMessage applications and sticker packages Integrating Siri into your apps with Siri Kit Creating fascinating apps for Apple Watch

Don't waste your time building an application server. See how to build low-cost, low-maintenance, highly available, serverless single page web applications that scale into the millions of users at the click of a button. Build well-tested single page apps that are safe from malicious attacks and adapt to any device or network connected to the web. Avoid messing around with middle-tier infrastructure and get right to the web app your customers want. You don't need to manage your own servers to build powerful web applications--the Internet will do that for you. This book will show you how to create a single page app that runs entirely on web services, scales to millions of users, and costs less per day than a cup of coffee. Using a web browser, a prepared workspace, and your favorite editor, you'll build a complete single page web application, step by step. Deploy your application quickly using Amazon S3. Learn the fundamental technologies behind modern single page apps, and use web standards to create lean web applications that can take advantage of the newest technologies. Connect with providers like Google and Facebook to manage user identities.Read and write user data directly from the browser using a web service database. Learn how to defend your application against common security threats. Whether you've never built a web application before or you're a seasoned web developer who's just looking for an alternative to complex server-side web frameworks, this book describes a simple approach to building serverless web applications that you can easily apply or adapt for your own projects. What You Need: To follow the tutorial in this book, you'll need a computer with a web browser. You'll also need a text editor and a git client. Building this web application will require some sort of development web server. You can use your own, or you can also use the one included with the tutorial's prepared workspace. The included web server requires Ruby 2.0, although we also suggest few alternatives. To get started quickly, you need a basic understanding of HTML, CSS, and JavaScript. If you're new to these topics, you can get up to speed using links we'll provide in the Introduction.

Programming the World Wide Web is intended for undergraduate students who have completed a course in object-oriented programming. It also serves as an up-to-date reference for Web programming professionals.

Programming the World Wide Web provides a comprehensive introduction to the tools and skills required for both client- and server-side programming, teaching students how to develop platform-independent sites using the most current Web development technology. Essential programming exercises are presented using a manageable progression: students begin with a foundational Web site and employ new languages and technologies to add features as they are discussed in the course. Readers with previous experience programming with an object-oriented language are guided through concepts relating to client-side and server-side programming. All of the markup documents in the book are validated using the W3C validation program.

Teaching and Learning ExperienceThis program presents a better teaching and learning experience-for you and your students. It will help: Teach Students how to Develop Platform-independent Sites: Students will benefit from a comprehensive introduction to the tools and skills required for both client- and server-side programming.Present Essential Programming Exercises in a Logical Progression: Students begin with a foundational Web site and employ new languages and technologies to add features as they are discussed in the course."

A Functional Start to Computing with Python enables students to quickly learn computing without having to use loops, variables, and object abstractions at the start. Requiring no prior programming experience, the book draws on Python's flexible data types and operations as well as its capacity for defining new functions. Along with the specifics of Python, the text covers important concepts of computing, including software engineering motivation, algorithms behind syntax rules, advanced functional programming ideas, and, briefly, finite state machines. Taking a student-friendly, interactive approach to teach computing, the book addresses more difficult concepts and abstractions later in the text. The author presents ample explanations of data types, operators, and expressions. He also describes comprehensions-the powerful specifications of lists and dictionaries-before introducing loops and variables. This approach helps students better understand assignment syntax and iteration by giving them a mental model of sophisticated data first. Web ResourceThe book's supplementary website at http://functionalfirstpython.com/ provides many ancillaries, including: Interactive flashcards on Python language elements Links to extra support for each chapter Unit testing and programming exercises An interactive Python stepper tool Chapter-by-chapter points Material for lectures

Writing for the Web unites theory, technology, and practice to explore writing and hypertext for website creation. It integrates such key topics as XHTML/CSS coding, writing (prose) for the Web, the rhetorical needs of the audience, theories of hypertext, usability and architecture, and the basics of web site design and technology. Presenting information in digestible parts, this text enables students to write and construct realistic and manageable Web sites with a strong theoretical understanding of how online texts communicate to audiences. Key features of the book include: Screenshots of contemporary Web sites that will allow students to understand how writing for and linking to other layers of a Web site should work. Flow charts that describe how Web site architecture and navigation works. Parsing exercises in which students break down information into subsets to demonstrate how Web site architecture can be usable and scalable. Detailed step-by-step descriptions of how to use basic technologies such as file transfer protocols (FTP). Hands-on projects for students to engage in that allow them to connect the various components in the text. A companion website with downloadable code and additional pedagogical features: www.routledge.com/cw/applen Writing for the Web prepares students to work in professional roles, as it facilitates understanding of architecture and arrangement of written content of an organization's texts.

Writing for the Web unites theory, technology, and practice to explore writing and hypertext for website creation. It integrates such key topics as XHTML/CSS coding, writing (prose) for the Web, the rhetorical needs of the audience, theories of hypertext, usability and architecture, and the basics of web site design and technology. Presenting information in digestible parts, this text enables students to write and construct realistic and manageable Web sites with a strong theoretical understanding of how online texts communicate to audiences. Key features of the book include: Screenshots of contemporary Web sites that will allow students to understand how writing for and linking to other layers of a Web site should work. Flow charts that describe how Web site architecture and navigation works. Parsing exercises in which students break down information into subsets to demonstrate how Web site architecture can be usable and scalable. Detailed step-by-step descriptions of how to use basic technologies such as file transfer protocols (FTP). Hands-on projects for students to engage in that allow them to connect the various components in the text. A companion website with downloadable code and additional pedagogical features: www.routledge.com/cw/applen Writing for the Web prepares students to work in professional roles, as it facilitates understanding of architecture and arrangement of written content of an organization's texts.

For the second or third programming course. A practical and unique approach to data structures that separates interface from implementation. This book provides a practical introduction to data structures with an emphasis on abstract thinking and problem solving, as well as the use of Java. It does this through what remains a unique approach that clearly separates each data structure's interface (how to use a data structure) from its implementation (how to actually program that structure). Parts I (Tour of Java), II (Algorithms and Building Blocks), and III (Applications) lay the groundwork by discussing basic concepts and tools and providing some practical examples, while Part IV (Implementations) focuses on implementation of data structures. This forces the reader to think about the functionality of the data structures before the hash table is implemented.

Disability and New Media examines how digital design is triggering disability when it could be a solution. Video and animation now play a prominent role in the World Wide Web and new types of protocols have been developed to accommodate this increasing complexity. However, as this has happened, the potential for individual users to control how the content is displayed has been diminished. Accessibility choices are often portrayed as merely technical decisions but they are highly political and betray a disturbing trend of ableist assumption that serve to exclude people with disability. It has been argued that the Internet will not be fully accessible until disability is considered a cultural identity in the same way that class, gender and sexuality are. Kent and Ellis build on this notion using more recent Web 2.0 phenomena, social networking sites, virtual worlds and file sharing. Many of the studies on disability and the web have focused on the early web, prior to the development of social networking applications such as Facebook, YouTube and Second Life. This book discusses an array of such applications that have grown within and alongside Web 2.0, and analyzes how they both prevent and embrace the inclusion of people with disability.

Description AWS gives users the networking, compute, and security services they need without making them pay for anything they're not actually using. With almost a hundred individual AWS services, putting all the pieces together is not a simple thing. That's where this book can help. Learn Amazon Web Services in a Month of Lunches guides readers through the process of building a robust and secure web application using the core AWS services they really need to know. When they're done, readers will be comfortable with the basics, and know exactly where to look when they're ready for more. Key features * Bite-sized lessons * Step-by-step guide * Thorough introduction * Hands-on examples Audience This book is for developers, system administrators, or anyone looking for an introduction to using AWS cloud. A basic understanding of TCP/IP networking is helpful, but not required. About the Technology Amazon Web Services is, by all metrics, the giant of the cloud computing world. Not only does it dominate in terms of user adoption and market share, but its innovative and highly integrated services have defined the way networked digital services are delivered.

Disability and New Media examines how digital design is triggering disability when it could be a solution. Video and animation now play a prominent role in the World Wide Web and new types of protocols have been developed to accommodate this increasing complexity. However, as this has happened, the potential for individual users to control how the content is displayed has been diminished. Accessibility choices are often portrayed as merely technical decisions but they are highly political and betray a disturbing trend of ableist assumption that serve to exclude people with disability. It has been argued that the Internet will not be fully accessible until disability is considered a cultural identity in the same way that class, gender and sexuality are. Kent and Ellis build on this notion using more recent Web 2.0 phenomena, social networking sites, virtual worlds and file sharing. Many of the studies on disability and the web have focused on the early web, prior to the development of social networking applications such as Facebook, YouTube and Second Life. This book discusses an array of such applications that have grown within and alongside Web 2.0, and analyzes how they both prevent and embrace the inclusion of people with disability.

Improving Business Agility with EDA Going beyond SOA, enterprises can gain even greater agility by implementing event-driven architectures (EDAs) that automatically detect and react to significant business events. However, EDA planning and deployment is complex, and even experienced SOA architects and developers need expert guidance. In Event-Driven Architecture, four leading IT innovators present both the theory of EDA and practical, step-by-step guidance to implementing it successfully. The authors first establish a thorough and workable definition of EDA and explore how EDA can help solve many of today's most difficult business and IT challenges. You'll learn how EDAs work, what they can do today, and what they might be able to do as they mature. You'll learn how to determine whether an EDA approach makes sense in your environment and how to overcome the difficult interoperability and integration issues associated with successful deployment. Finally, the authors present chapter-length case studies demonstrating how both full and partial EDA implementations can deliver exceptional business value. Coverage includes How SOA and Web services can power event-driven architectures The role of SOA infrastructure, governance, and security in EDA environments EDA core components: event consumers and producers, message backbones, Web service transport, and more EDA patterns, including simple event processing, event stream processing, and complex event processing Designing flexible stateless events that can respond to unpredictable customers, suppliers, and business partners Addressing technical and business challenges such as project management and communication EDA at work: real-world applications across multiple verticals Hugh Taylor is a social software evangelist for IBM Lotus Software. He coauthored Understanding Enterprise SOA and has written extensively on Web services and SOA. He holds an MBA from Harvard Business School. Angela Yochem is an executive in a multinational technology company and is a recognized thought leader in architecture and large-scale technology management. Les Phillips, VP, enterprise architecture, at SunTrust Banks Inc., is responsible for defining the strategic and business IT foundation for many areas of the enterprise. Frank Martinez, EVP, product strategy, at SOA Software, is a recognized expert on distributed, enterprise application, and infrastructure platforms. He has served as senior operating executive for several venture-backed firms and helped build Intershop Communications into a multibillion-dollar public company. Foreword xi Preface xii Introduction 1 Event-Driven Architecture: A Working Definition 1 The "New" Era of Interoperability Dawns 6 The ETA for Your EDA 9 Endnotes 9 PART I THE THEORY OF EDA Chapter 1 EDA: Opportunities and Obstacles 13 The Vortex 13 EDA: A Working Systemic Definition 14 The (Not So Smooth) Path to EDA 24 Defining Interoperability 26 Drivers of Interoperability 28 Application Integration: A Means to Interoperate 29 Interoperation and Business Process Management 31 Is There a Diet for All This Spaghetti? 35 How Architecture Promotes Integration 37 Management and Governance 39 Chapter Summary 43 Endnote 45 Chapter 2 SOA: The Building Blocks of EDA 47 Making You an Offer You Can't Understand 47 SOA: The Big Picture 48 Defining Service 49 Service-Based Integration 50 Web Services 51 What Is SOA? 59 Loose Coupling in the SOA 60 Chapter Summary 61 Chapter 3 Characteristics of EDA 63 Firing Up the Corporate Neurons 63 Revisiting the Enterprise Nervous System 63 The Ideal EDA 78 BAM--A Related Concept 86 Chapter Summary 87 Endnotes 89 Chapter 4 The Potential of EDA 91 Introduction 91 EDA's Potential in Enterprise Computing 91 EDA and Enterprise Agility 100 EDA and Society's Computing Needs 102 EDA and Compliance 107 Chapter Summary 108 Chapter 5 The SOA-EDA Connection 111 Getting Real 111 Event Services 112 The Service Network 114 Implementing the SOA and Service Network 116 How to Design an SOA 122 The Real "Bottom Line" 134 Chapter Summary 137 PART II EDA IN PRACTICE Chapter 6 Thinking EDA 141 A Novel Mind-Set 141 Reducing Central Control 142 Thinking about EDA Implementation 148 When EDA Is Not the Answer 151 An EDA Product Examined 153 Chapter Summary 157 Endnotes 158 Chapter 7 Case Study: Airline Flight Control 159 Learning Objectives 160 Business Context: Airline Crunch Time 160 The Ideal Airline Flight Control EDA 167 What FEDA Might Look Like in Real Life 176 Program Success 197 Chapter Summary 206 Endnotes 207 Chapter 8 Case Study: Anti-Money Laundering 209 Learning Objectives 210 Cracking a Trillion Dollar, Global Crime Wave 210 IT Aspects of Anti-Money Laundering 216 EDA as a Weapon in the War on Money Laundering 221 Chapter Summary 259 Endnotes 260 Chapter 9 Case Study: Event-Driven Productivity Infrastructure 261 Learning Objectives 262 The Often Inadequate Human Link in the EDA 262 Overview of Productivity Infrastructure 264 The Potential Benefits of EDA-PI Integration 267 ProdCo, an EDA-PI Integration Scenario 273 Chapter Summary 293 Endnotes 294

This book is for Visual Basic developers who want to learn how to develop professional web applications with Microsoft's ASP.NET 3.5. The first 4 chapters present a quick-start course that works both for beginners and for experienced web developers who are new to ASP.NET. Then, the next four sections present (1) the skills you need for any business application, (2) the skills you need for database applications, (3) the skills you need for e-commerce applications, and (4) the skills you need for developing code that can be reused in other web applications. Along the way, you will learn about .NET 3.5 enhancements that streamline web development, like the ListView and DataPager controls, LINQ, and AJAX.

This book includes a variety of articles which look critically and judiciously at Google and its products, with a focus on Google Scholar and Google Book Search. It also examines their usefulness in a public service context. Its ultimate aim is to assess the use of Google as a major information resource. Its subject matter deals with online megasearch engines and their influence on reference librarianship, the impact of Google on information seeking, librarianship and the development of book digitization projects in which Google Book Search plays its part.

This book will be of interest to librarians across all educational sectors, library science scholars and publishers.

This book was published as a special issue of the Journal of Library Administration.

The networking capabilities of the Java platform have been extended considerably since the first edition of the book. This new edition covers version 1.5-1.7, the most current iterations, as well as making the following improvements:
The API (application programming interface) reference sections in each chapter, which describe the relevant parts of each class, have been replaced with (i) a summary section that lists the classes and methods used in the code, and (ii) a ?gotchas? section that mentions nonobvious or poorly-documented aspects of the objects.
In addition, the book covers several new classes and capabilities introduced in the last few revisions of the Java platform. New abstractions to be covered include NetworkInterface, InterfaceAddress, Inet4/6Address, SocketAddress/InetSocketAddress, Executor, and others; extended access to low-level network information; support for IPv6; more complete access to socket options; and scalable I/O. The example code is also modified to take advantage of new language features such as annotations, enumerations, as well as generics and implicit iterators where appropriate.
Most Internet applications use sockets to implement network communication protocols. This book's focused, tutorial-based approach helps the reader master the tasks and techniques essential to virtually all client-server projects using sockets in Java. Chapter 1 provides a genral overview of networking concepts to allow readers to synchronize the concepts with terminology. Chapter 2 introduces the mechanics of simple clients and servers. Chapter 3 covers basic message construction and parsing. Chapter 4 then deals with techniques used to build more robust clients and servers. Chapter 5 (NEW) introduces the scalable interface facilities which were introduced in Java 1.5, including the buffer and channel abstractions. Chapter 6 discusses the relationship between the programming constructs and the underlying protocol implementations in more detail. Programming concepts are introduced through simple program examples accompanied by line-by-line code commentary that describes the purpose of every part of the program. The book's Web site contains many examples of command-based sockets-related code discussed throughout the book. No other resource presents so concisely or so effectively the material necessary to get up and running with Java sockets programming.
KEY FEATURES
* Focused, tutorial-based instruction in key sockets programming techniques allows reader to quickly come up to speed on Java applications.
* Concise and up-to-date coverage of the most recent platform (1.7) for Java
applications in networking technology
* Provides code for all example programs via a companion Web site to let the reader see the important objects and methods in context and to understand the purpose of each line of code.

All You Need to Know, and Nothing You Don't, About Core Tools for Software Development Three of the core tools needed for modern software development are the Unix command line, a text editor, and version control with Git. But you don't need to learn "everything" about them, just how to use them efficiently to solve real problems. In Learn Enough Developer Tools to Be Dangerous, renowned instructor Michael Hartl teaches the specific concepts, skills, and approaches you need so you can learn to write apps, get hired, collaborate, and maybe even launch your own company. Even if you've never used (or even heard of) these tools before, Hartl helps you quickly build technical sophistication and master the lore you need to succeed. Focused exercises help you internalize what matters, without wasting time on details pros don't care about. Soon, it'll be like you were born knowing this stuff--and you'll be suddenly, seriously dangerous. Learn enough about . . . Running a terminal, entering and editing commands, and using man pages Manipulating and inspecting files: from basic copying to finding patterns Organizing files with directories Learning Minimum Viable Vim Basic and advanced editing techniques with editors like Atom and VS Code Using the human-readable Markdown language for writing quick documentation Formatting source code and writing executable scripts Getting started with Git and GitHub Using key Git workflows: commit, push, branch, merge, and more Collaborating on Git projects and resolving code conflicts Setting up dev environments: macOS, Linux, Windows, and cloud Michael Hartl's Learn Enough series includes books and video courses that focus on the most important parts of each subject, so you don't have to learn everything to get started--you just have to learn enough to be dangerous and solve technical problems yourself. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

Node.js is the platform of choice for creating modern web services. This fast-paced book gets you up to speed on server-side programming with Node.js 8, as you develop real programs that are small, fast, low-profile, and useful. Take JavaScript beyond the browser, explore dynamic language features, and embrace evented programming.Harness the power of the event loop and non-blocking I/O to create highly parallel microservices and applications. This expanded and updated second edition showcases the latest ECMAScript features, current best practices, and modern development techniques. JavaScript is the backbone of the modern web, powering nearly every web app's user interface. Node.js is JavaScript for the server. This greatly expanded second edition introduces new language features while dramatically increasing coverage of core topics. Each hands-on chapter offers progressively more challenging topics and techniques, broadening your skill set and enabling you to think in Node. Write asynchronous, non-blocking code using Node's style and patterns. Cluster and load balance services with Node core features and third-party tools. Harness the power of databases like Elasticsearch and Redis. Work with many protocols, create RESTful web services, TCP socket clients and servers, and more. Test your code's functionality with Mocha, and manage its life cycle with NPM. Discover how Node pairs a server-side event loop with a JavaScript runtime to produce screaming fast, non-blocking concurrency. Through a series of practical programming domains, use the latest available ECMAScript features and harness key Node classes and popular modules. Create rich command-line tools and a web-based UI using modern web development techniques. Join the smart and diverse community that's rapidly advancing the state of the art in JavaScript development. What You Need: Node.js 8.xOperating system with bash-like shellOMQ (pronounced "Zero-M-Q") library, version 3.2 or higherElasticsearch version 5.0 or higherjq version 1.5 or higherRedis version 3.2 or higher

Give users the real-time experience they expect, by using Elixir and Phoenix Channels to build applications that instantly react to changes and reflect the application's true state. Learn how Elixir and Phoenix make it easy and enjoyable to create real-time applications that scale to a large number of users. Apply system design and development best practices to create applications that are easy to maintain. Gain confidence by learning how to break your applications before your users do. Deploy applications with minimized resource use and maximized performance. Real-time applications come with real challenges - persistent connections, multi-server deployment, and strict performance requirements are just a few. Don't try to solve these challenges by yourself - use a framework that handles them for you. Elixir and Phoenix Channels provide a solid foundation on which to build stable and scalable real-time applications. Build applications that thrive for years to come with the best-practices found in this book. Understand the magic of real-time communication by inspecting the WebSocket protocol in action. Avoid performance pitfalls early in the development lifecycle with a catalog of common problems and their solutions. Leverage GenStage to build a data pipeline that improves scalability. Break your application before your users do and confidently deploy them. Build a real-world project using solid application design and testing practices that help make future changes a breeze. Create distributed apps that can scale to many users with tools like Phoenix Tracker. Deploy and monitor your application with confidence and reduce outages. Deliver an exceptional real-time experience to your users, with easy maintenance, reduced operational costs, and maximized performance, using Elixir and Phoenix Channels. What You Need: You'll need Elixir 1.9+ and Erlang/OTP 22+ installed on a Mac OS X, Linux, or Windows machine.

In this title, Graham Mayeda shows how Watsuji Tetsuro and Kuki Shuzo, two 20th-century Japanese philosophers, criticize and interpret Heideggerian philosophy in the process of articulating traditional Japanese ethics in a modern idiom.

Become a JavaScript programmer and have fun doing it! Start writing software that solves real problems, even if you have absolutely no programming experience! This friendly, easy, full-color book puts you in total control of your own learning, empowering you to build unique and useful programs. Microsoft has completely reinvented the beginning programmer's tutorial, reflecting deep research into how today's beginners learn, and why other books fall short. Begin to Code with JavaScript is packed with innovations, from its JavaScript code samples you can interact with straight from your browser to its "Make Something Happen" projects. Whether you're a total beginner or you've tried before, this guide will put the power, excitement, and fun of programming where it belongs: in your hands! Easy, friendly, and you're in control! Learn how to... Get and use the powerful free Visual Studio Code tool for JavaScript programming Explore the JavaScript environment and see what happens when programs run Learn key concepts from example programs, and use them to jumpstart your own Create web pages containing JavaScript programs using HTML and CSS Write complete JavaScript programs that run inside browsers Master JavaScript features for storing and processing data Break large programs into small, flexible components Use software objects to create custom data types to solve specific problems Design more attractive and usable applications Make your programs more secure and reliable Use libraries and frameworks to create powerful software more quickly Get started with the essentials of interactive game development About This Book For absolute beginners who've never written a line of code For anyone who's been frustrated with other beginning programming books or courses For people who've started out with other languages and now want to learn JavaScript

Concurrency is a powerful technique for developing efficient and lightning- fast software. For instance, concurrency can be used in common applications such as online order processing to speed processing and ensure transaction reliability. However, mastering concurrency is one of the greatest challenges for both new and veteran programmers. Software developers with all levels of experience can refer to Creating Components: Object Oriented, Concurrent, and Distributed Computing in Java to better understand how concurrency works, more effectively deploy it in program components, and reuse these components to improve program design, quality, and performance.

This text introduces concurrent and component programming to students, engineers, and programmers who are familiar with Java and procedural and GUI programming. It helps them to understand and apply concurrency in Java component programming, while exploring distributed program implementation, Java threads, objects, interfaces, exceptions, component reuse, and system design and management.

By providing the fundamental concepts of object-oriented components and offering templates for distributed program components, this valuable resource reveals how programmers can apply concurrency and components to solve complex problems.

One of the most useful features of today's modern browsers is the ability to store data right on the user's computer or mobile device. Even as more people move toward the cloud, client-side storage can still save web developers a lot of time and money, if you do it right. This hands-on guide demonstrates several storage APIs in action. You'll learn how and when to use them, their plusses and minuses, and steps for implementing one or more of them in your application. Ideal for experienced web developers familiar with JavaScript, this book also introduces several open source libraries that make storage APIs easier to work with. Learn how different browsers support each client-side storage API Work with web (aka local) storage for simple things like lists or preferences Use IndexedDB to store nearly anything you want on the user's browser Learn how support web apps that still use the discontinued Web SQL Database API Explore Lockr, Dexie, and localForage, three libraries that simplify the use of storage APIs Build a simple working application that makes use of several storage techniques