Professional XMPP Programming with JavaScript and jQuery

by Jack Moffitt

Author	: Jack Moffitt
Publisher	: John Wiley & Sons
Total Pages	: 482
Release	: 2010-04-29
Genre	: Computers
ISBN	: 0470633905

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Create real-time, highly interactive apps quickly with the powerful XMPP protocol XMPP is a robust protocol used for a wide range of applications, including instant messaging, multi-user chat, voice and video conferencing, collaborative spaces, real-time gaming, data synchronization, and search. This book teaches you how to harness the power of XMPP in your own apps and presents you with all the tools you need to build the next generation of apps using XMPP or add new features to your current apps. Featuring the JavaScript language throughout and making use of the jQuery library, the book contains several XMPP apps of increasing complexity that serve as ideal learning tools. Coverage Includes: Getting to Know XMPP Designing XMPP Applications Saying Hello: The First Application Exploring the XMPP Protocol: A Debugging Console Microblogging in Real Time: An Identica Client Talking with Friends: One-on-One Chat Exploring Services: Service Discovery and Browsing Group Chatting: A Multi-User Chat Client Publishing and Subscribing: A Shared Sketch Pad Introduction Writing with Friends: A Collaborative Text Editor Playing Games: Head to Head Tic-Tac-Toe Getting Attached: Bootstrapping BOSH Deploying XMPP Applications Writing Strophe Plug-ins Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

WebSocket

by Andrew Lombardi

Author	: Andrew Lombardi
Publisher	: "O'Reilly Media, Inc."
Total Pages	: 146
Release	: 2015-09-09
Genre	: Computers
ISBN	: 1449369235

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Until recently, creating desktop-like applications in the browser meant using inefficient Ajax or Comet technologies to communicate with the server. With this practical guide, you’ll learn how to use WebSocket, a protocol that enables the client and server to communicate with each other on a single connection simultaneously. No more asynchronous communication or long polling! For developers with a good grasp of JavaScript (and perhaps Node.js), author Andrew Lombardi provides useful hands-on examples throughout the book to help you get up to speed with the WebSocket API. You’ll also learn how to use WebSocket with Transport Layer Security (TLS). Learn how to use WebSocket API events, messages, attributes, and methods within your client application Build bi-directional chat applications on the client and server with WebSocket as the communication layer Create a subprotocol over WebSocket for STOMP 1.0, the Simple Text Oriented Messaging Protocol Use options for older browsers that don’t natively support WebSocket Protect your WebSocket application against various attack vectors with TLS and other tools Debug applications by learning aspects of the WebSocket lifecycle

HTML5 Hacks

by Jesse Cravens

Author	: Jesse Cravens
Publisher	: "O'Reilly Media, Inc."
Total Pages	: 505
Release	: 2012-11-15
Genre	: Computers
ISBN	: 144933508X

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With 90 detailed hacks, expert web developers Jesse Cravens and Jeff Burtoft demonstrate intriguing uses of HTML5-related technologies. Each recipe provides a clear explanation, screenshots, and complete code examples for specifications that include Canvas, SVG, CSS3, multimedia, data storage, web workers, WebSockets, and geolocation. You’ll also find hacks for HTML5 markup elements and attributes that will give you a solid foundation for creative recipes that follow. The last chapter walks you through everything you need to know to get your HTML5 app off the ground, from Node.js to deploying your server to the cloud. Here are just a few of the hacks you’ll find in this book: Make iOS-style card flips with CSS transforms and transitions Replace the background of your video with the Canvas tag Use Canvas to create high-res Retina Display-ready media Make elements on your page user-customizable with editable content Cache media resources locally with the filesystem API Reverse-geocode the location of your web app user Process image data with pixel manipulation in a dedicated web worker Push notifications to the browser with Server-Sent Events

Lifehacker

by Adam Pash

Author	: Adam Pash
Publisher	: John Wiley & Sons
Total Pages	: 365
Release	: 2011-06-03
Genre	: Computers
ISBN	: 1118133455

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A new edition, packed with even more clever tricks and methods that make everyday life easier Lifehackers redefine personal productivity with creative and clever methods for making life easier and more enjoyable. This new edition of a perennial bestseller boasts new and exciting tips, tricks, and methods that strike a perfect balance between current technology and common sense solutions for getting things done. Exploring the many ways technology has changed since the previous edition, this new edition has been updated to reflect the latest and greatest in technological and personal productivity. The new "hacks" run the gamut of working with the latest Windows and Mac operating systems for both Windows and Apple, getting more done with smartphones and their operating systems, and dealing with the evolution of the web. Even the most tried-and-true hacks have been updated to reflect the contemporary tech world and the tools it provides us. Technology is supposed to make our lives easier by helping us work more efficiently. Lifehacker: The Guide to Working Smarter, Faster, and Better, Third Edition is your guide to making that happen!

HTML5 in Action

by Greg Wanish

Author	: Greg Wanish
Publisher	: Simon and Schuster
Total Pages	: 693
Release	: 2014-02-09
Genre	: Computers
ISBN	: 1638352739

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Summary HTML5 in Action provides a complete introduction to web development using HTML5. You'll explore every aspect of the HTML5 specification through real-world examples and code samples. It's much more than just a specification reference, though. It lives up to the name HTML5 in Action by giving you the practical, hands-on guidance you'll need to use key features. About the Technology HTML5 is not a few new tags and features added to an old standard—it's the foundation of the modern web, enabling its interactive services, single-page UI, interactive games, and complex business applications. With support for standards-driven mobile app development, powerful features like local storage and WebSockets, superb audio and video APIs, and new layout options using CSS3, SVG, and Canvas, HTML5 has entered its prime time. About the Book HTML5 in Action provides a complete introduction to web development using HTML5. It explores the HTML5 specification through real-world examples and code samples. It earns the name "in Action" by giving you the practical, hands-on guidance you'll need to confidently build the sites and applications you—and your clients—have been wanting for years. This book concentrates on new HTML5 features and assumes you are familiar with standard HTML. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. What's Inside New semantic elements and form input types Single-page application design Creating interactive graphics Mobile web apps About the Authors Rob Crowther is a web developer and blogger and the author of Manning's Hello! HTML5 & CSS3. Joe Lennon is an enterprise mobile application developer. Ash Blue builds award-winning interactive projects. Greg Wanish is an independent web and eCommerce developer. Table of Contents PART 1 INTRODUCTION HTML5: from documents to applications PART 2 BROWSER-BASED APPS Form creation: input widgets, data binding, and data validation File editing and management: rich formatting, file storage, drag and drop Messaging: communicating to and from scripts in HTML5 Mobile applications: client storage and offline execution PART 3 INTERACTIVE GRAPHICS, MEDIA, AND GAMING 2D Canvas: low-level, 2D graphics rendering SVG: responsive in-browser graphics Video and audio: playing media in the browser WebGL: 3D application development Plus 10 Appendixes

BeagleBone Cookbook

by Mark A. Yoder

Author	: Mark A. Yoder
Publisher	: "O'Reilly Media, Inc."
Total Pages	: 346
Release	: 2015-04-03
Genre	: Computers
ISBN	: 1491915684

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BeagleBone is an inexpensive web server, Linux desktop, and electronics hub that includes all the tools you need to create your own projects—whether it’s robotics, gaming, drones, or software-defined radio. If you’re new to BeagleBone Black, or want to explore more of its capabilities, this cookbook provides scores of recipes for connecting and talking to the physical world with this credit-card-sized computer. All you need is minimal familiarity with computer programming and electronics. Each recipe includes clear and simple wiring diagrams and example code to get you started. If you don’t know what BeagleBone Black is, you might decide to get one after scanning these recipes. Learn how to use BeagleBone to interact with the physical world Connect force, light, and distance sensors Spin servo motors, stepper motors, and DC motors Flash single LEDs, strings of LEDs, and matrices of LEDs Manage real-time input/output (I/O) Work at the Linux I/O level with shell commands, Python, and C Compile and install Linux kernels Work at a high level with JavaScript and the BoneScript library Expand BeagleBone’s functionality by adding capes Explore the Internet of Things

Learn Blockchain Programming with JavaScript

by Eric Traub

Author	: Eric Traub
Publisher	: Packt Publishing Ltd
Total Pages	: 245
Release	: 2018-11-30
Genre	: Computers
ISBN	: 1789614848

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Explore the essentials of blockchain technology with JavaScript to develop highly secure bitcoin-like applications Key FeaturesDevelop bitcoin and blockchain-based cryptocurrencies using JavaScriptCreate secure and high-performant blockchain networksBuild custom APIs and decentralized networks to host blockchain applicationsBook Description Learn Blockchain Programming with JavaScript begins by giving you a clear understanding of what blockchain technology is. You’ll then set up an environment to build your very own blockchain and you’ll add various functionalities to it. By adding functionalities to your blockchain such as the ability to mine new blocks, create transactions, and secure your blockchain through a proof-of-work you’ll gain an in-depth understanding of how blockchain technology functions. As you make your way through the chapters, you’ll learn how to build an API server to interact with your blockchain and how to host your blockchain on a decentralized network. You’ll also build a consensus algorithm and use it to verify data and keep the entire blockchain network synchronized. In the concluding chapters, you’ll finish building your blockchain prototype and gain a thorough understanding of why blockchain technology is so secure and valuable. By the end of this book, you'll understand how decentralized blockchain networks function and why decentralization is such an important feature for securing a blockchain. What you will learnGain an in-depth understanding of blockchain and the environment setupCreate your very own decentralized blockchain network from scratchBuild and test the various endpoints necessary to create a decentralized networkLearn about proof-of-work and the hashing algorithm used to secure dataMine new blocks, create new transactions, and store the transactions in blocksExplore the consensus algorithm and use it to synchronize the blockchain networkWho this book is for Learn Blockchain Programming with JavaScript is for JavaScript developers who wish to learn about blockchain programming or build their own blockchain using JavaScript frameworks.

XMPP

by Peter Saint-Andre

Author	: Peter Saint-Andre
Publisher	: "O'Reilly Media, Inc."
Total Pages	: 308
Release	: 2009-04-23
Genre	: Computers
ISBN	: 059652126X

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This is a complete overview of the XMPP instant messaging protocol that gives developers the tools they need to build applications for real-time communication.

Essential App Engine

by Adriaan de Jonge

Author	: Adriaan de Jonge
Publisher	: Addison-Wesley
Total Pages	: 342
Release	: 2011-10-19
Genre	: Computers
ISBN	: 0132484757

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In Essential App Engine, Adriaan de Jonge shows Java developers how to rapidly build complex, productionquality, performance-driven cloud applications with Google App Engine. Using a start-to-finish case study and extensive Java example code, De Jonge covers the entire lifecycle, from application design and data modeling through security, testing, and deployment. De Jonge introduces breakthrough techniques for creating applications that respond within two seconds, even on cold startup, and allow server responses in hundreds of milliseconds or less throughout the rest of the session. He also demonstrates how to avoid common mistakes that can dramatically reduce cloud application performance and scalability. He thoroughly covers state-of-the-art user interface development and shows how to make the most of Google App Engine’s extensive set of APIs. Coverage includes Setting up a development environment that makes it easy to continually address performance Understanding the anatomy of a Google App Engine application Making the right technical setup and design choices for each new application Efficiently modeling data for App Engine’s NoSQL data storage Recognizing when to avoid OR-mapping and pass datastore entities directly to HTML templates Finding alternatives to frameworks and libraries that impair App Engine performance Using JavaScript and AJAX on the client side of your cloud applications Improving browser performance and reducing resource consumption via better use of HTML5 and CSS3 Taking advantage of key App Engine APIs: datastore, blobstore, mail, task scheduling, memory caching, URL retrieval, and messaging Securing cloud-based Web applications with Google Accounts, OpenID, and OAuth Improving your cloud development, quality assurance, and deployment processes Targeting, marketing, and selling cloud solutions, from planning to payment handling