Professional JavaScript for Web developers, third edition

A significant update to a bestselling JavaScript bookAs the key scripting language for the web, JavaScript is supported by every modern web browser and allows developers to create client-side scripts that take advantage of features such as animating the canvas tag and enabling client-side storage and application caches. After an in-depth introduction to the JavaScript language, this updated edition of a bestseller progresses to break down how JavaScript is applied for web development using the latest web development technologies. Veteran author and JavaScript guru Nicholas Zakas shows how JavaScript works with the new HTML5 as well as other significant advances in web development as it relates to JavaScript.Begins with an introduction to JavaScript basics and then moves on to more advanced topics regarding JavaScript and advances in web development technologiesDescribes how JavaScript is implemented into HTML5Covers browser/feature detection in scripts, event-driven JavaScript development, error reporting and debugging, offline application and data storage, and moreProfessional JavaScript for Web Developers, 3rd Edition is an authoritative JavaScript resource that every web developers should have. Professional JavaScript for Web Developers, 2nd Edition, provides a developer-level introduction along with the more advanced and useful features of JavaScript. Starting at the beginning, the book explores how JavaScript originated and evolved into what it is today. A detailed discussion of the components that make up a JavaScript implementation follows, with specific focus on standards such as ECMAScript and the Document Object Model (DOM). The differences in JavaScript implementations used in different popular web browsers are also discussed. Building on that base, the book moves on to cover basic concepts of JavaScript including its version of object-oriented programming, inheritance, and its use in various markup languages such as HTML. An in-depth examination of events and event handling is followed by an exploration of browser detection techniques and a guide to using regular expressions in JavaScript. The book then takes all this knowledge and applies it to creating dynamic user interfaces. The last part of the book is focused on advanced topics, including performance/memory optimization, best practices, and a look at where JavaScript is going in the future. This book is aimed at three groups of readers: Experienced developers familiar with object-oriented programming who are looking to learn JavaScript as it relates to traditional OO languages such as Java and C++ Web application developers attempting to enhance the usability of their web sites and web applications Novice JavaScript developers aiming to better understand the language In addition, familiarity with the following related technologies is a strong indicator that this book is for you: Java PHP ASP.NET HTML CSS XML This book is not aimed at beginners who lack a basic computer science background or those looking to add some simple user interactions to web sites. These readers should instead refer to Wrox's Beginning JavaScript, 3rd Edition (Wiley, 2007). This book covers: What Is JavaScript?--Explains the origins of where it came from, how it evolved, and what it is today. Concepts introduced include the relationship between JavaScript and ECMAScript, the Document Object Model (DOM), and the Browser Object Model (BOM). A discussion of the relevant standards from the European Computer Manufacturer's Association (ECMA) and the World Wide Web Consortium (W3C) is also included. JavaScript in HTML--Examines how JavaScript is used in conjunction with HTML to create dynamic web pages. Introduces the various ways of embedding JavaScript into a page, including a discussion surrounding the JavaScript content-type and its relationship to the element. Language Basics--Introduces basic language concepts, including syntax and flow control statements. Explains the syntactic similarities of JavaScript and other C-based languages and points out the differences. Type coercion is introduced as it relates to built-in operators. Variables, Scope, and Memory--Explores how variables are handled in JavaScript given their loosely typed nature. A discussion about the differences between primitive and reference values is included, as is information about execution context as it relates to varia...

This book provides a developer-level introduction along with more advanced and useful features of JavaScript. Coverage includes:

• JavaScript use with HTML to create dynamic webpages, language concepts including syntax and flow control statements
• variable handling given their loosely typed nature
• built-in reference types such as object and array
• object-oriented programing
• powerful aspects of function expressions
• Browser Object Model allowing interaction with the browser itself
• detecting the client and its capabilities
• Document Object Model (DOM) objects available in DOM Level 1
• how DOM Levels 2 and 3 augmented the DOM
• events, legacy support, and how the DOM redefined how events should work
• enhancing form interactions and working around browser limitations
• using the <canvas> tag to create on-the-fly graphics
• JavaScript API changes in HTML5
• how browsers handle JavaScript errors and error handling
• features of JavaScript used to read and manipulate XML data
• the JSON data format as an alternative to XML
• Ajax techniques including the use of XMLHttpRequest object and CORS
• complex patterns including function currying, partial function application, and dynamic functions
• offline detection and storing data on the client machine
• techniques for JavaScript in an enterprise environment for better maintainability

This book is aimed at three groups of readers: Experienced object-oriented programming developers looking to learn JavaScript as it relates to traditional OO languages such as Java and C++; Web application developers attempting to enhance site usability; novice JavaScript developers.

Nicholas C. Zakas worked with the Web for over a decade. He has worked on corporate intranet applications used by some of the largest companies in the world and large-scale consumer websites such as MyYahoo! and the Yahoo! homepage. He regularly gives talks at companies and conferences regarding front-end best practices and new technology.

Transfer your existing skills to the iOS platform. Are you already proficient in HTML, CSS, JavaScript, and Ajax and eager to create apps that can be rapidly deployed across mobile devises--but you don't want to have to learn a whole new technology in order to do so? Then this is the book for you. Written by an experienced web designer and developer, this helpful guide enables you to use what you already know and gets you up to speed quickly with applying your existing skills to the mobile platform so that you can start developing apps for the iPhone, iPod touch, and iPad today. Web developers with HTML/JS skills will quickly learn to apply them to the iPhone/iPad platformBeginning to intermediate web developers who want to apply their existing HTML/CSS/JS/Ajax skills to the wildly popular iPhone/iPad OS will love this book. In the highly successful Wrox Beginning format, it enables developers who know these core technologies to use what they already know and get up to speed quickly. It introduces iOS development with web technologies, explains how to enable and optimize web sites for the iPhone and iPad, explores user interface design, then moves into animation, special effects, building with web frameworks, and much more. Teaches you to apply your knowledge of HTML, JavaScript, and related web technologies to the iOS platform and create apps for the iPad and iPhoneExplains how to enable and optimize web sites for the mobile screen, design an effective iPad and iPhone UI, and apply CSSCovers building in interactivity, animation, and special effects, programming the canvas, offline, apps, bandwidth performance and optimization, and web frameworksShows you how to package your app inside a native iOS wrapper (no programming required) so you can submit your apps to the App StoreDevelopers who already know HTML and JavaScript can get up to speed on iOS app development more quickly with the help of this Wrox guide Professional Ajax 2nd Edition provides a developer-level tutorial of Ajax techniques, patterns, and use cases. The book begins by exploring the roots of Ajax, covering how the evolution of the web and new technologies directly led to the development of Ajax techniques. A detailed discussion of how frames, JavaScript, cookies, XML, and XMLHttp requests (XHR) related to Ajax is included. After this introduction, the book moves on to cover the implementation of specific Ajax techniques. Request brokers such as hidden frames, dynamic iframes, and XHR are compared and contrasted, explaining when one method should be used over another. To make this discussion clearer, a brief overview of HTTP requests and responses is included.

Once a basic understanding of the various request types is discussed, the book moves on to provide in-depth examples of how and when to use Ajax in a web site or web application. Different data transmission formats, including plain text, HTML, XML, and JSON are discussed for their advantages and disadvantages. Also included is a discussion on web services and how they may be used to perform Ajax techniques. Next, more complex topics are covered. A chapter introducing a request management framework explores how to manage all of the requests inside of an Ajax application. Ajax debugging techniques are also discussed.

Professional Ajax 2nd edition is written for Web application developers looking to enhance the usability of their web sites and web applications and intermediate JavaScript developers looking to further understand the language. Readers should have familiarity with XML, XSLT, Web Services, PHP or C#, HTML, CSS.

Professional Ajax 2nd edition adds nearly 200 pages of new and expanded coverage compared to the first edition.

Professional Ajax 2nd Edition provides a developer-level tutorial of Ajax techniques, patterns, and use cases. The book begins by exploring the roots of Ajax, covering how the evolution of the web and new technologies directly led to the development of Ajax techniques. A detailed discussion of how frames, JavaScript, cookies, XML, and XMLHttp requests (XHR) related to Ajax is included. After this introduction, the book moves on to cover the implementation of specific Ajax techniques. Request brokers such as hidden frames, dynamic iframes, and XHR are compared and contrasted, explaining when one method should be used over another. To make this discussion clearer, a brief overview of HTTP requests and responses is included. Once a basic understanding of the various request types is discussed, the book moves on to provide in-depth examples of how and when to use Ajax in a web site or web application. Different data transmission formats, including plain text, HTML, XML, and JSON are discussed for their advantages and disadvantages. Also included is a discussion on web services and how they may be used to perform Ajax techniques. Next, more complex topics are covered. A chapter introducing a request management framework explores how to manage all of the requests inside of an Ajax application. Ajax debugging techniques are also discussed. The last part of the book walks through the creation of two full-fledged Ajax web applications. The first, FooReader.NET, is an Ajax-powered RSS reader. The second, called AjaxMail, is an Ajax-enabled email system. Both of these applications incorporate many of the techniques discussed throughout the book. -- Description from http://www.amazon.co.uk (July 13, 2012)

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.

This book covers the various aspects of developing web-based applications for iOS. Over the past four years, the iPhone and iPad have been amazingly successful. Because of this success, application developers are entering a world of sophisticated, multifunctional mobile applications. Now mobile web-based applications can bring together web apps, native apps, multimedia video and audio, and the mobile device itself. By using this book you will learn how to create a mobile application from beginning to end, utilizing open source frameworks to speed up development times, emulate the look and feel of built-in Apple applications, capture finger touch interactions, and optimize applications for Wi-Fi and wireless networks.

The book introduces you to the web application platform for iOS. It also guides you through the process of building new applications from scratch as well as migrating existing web applications to this new mobile platform. By doing this, the book helps readers design a user interface that is optimized for iOS touch-screen displays and integrate their applications with iPhone services, including Phone, Mail, Google Maps, and GPS.

This book is aimed at beginning and intermediate web developers who want to learn how to build new applications for iOS or migrate existing web apps to this platform. In general, you will find it helpful if you have a working knowledge of these technologies:

• HTML/XHTML
• CSS
• JavaScript
• Ajax

Written for experienced web developers, Professional Ajax shows how to combine tried-and-true CSS, XML, and JavaScript technologies into Ajax. This provides web developers with the ability to create more sophisticated and responsive user interfaces and break free from the "click-and-wait" standard that has dominated the web since its introduction. Professional Ajax discusses the range of request brokers (including the hidden frame technique, iframes, and XMLHttp) and explains when one should be used over another. You will also learn different Ajax techniques and patterns for executing client-server communication on your web site and in web applications. By the end of the book, you will have gained the practical knowledge necessary to implement your own Ajax solutions. In addition to a full chapter case study showing how to combine the book's Ajax techniques into an AjaxMail application, Professional Ajax uses many other examples to build hands-on Ajax experience. Some of the other examples include: web site widgets for a news ticker, weather information, web search, and site search preloading pages in online articles incremental form validation using Google Web APIs in Ajax creating an autosuggest text box Professional Ajax readers should be familiar with CSS, XML, JavaScript, and HTML so you can jump right in with the book and begin learning Ajax patterns, XPath and XSLT support in browsers, syndication, web services, JSON, and the Ajax Frameworks, JPSpan, DWR, and Ajax.NET.

Learn how to build apps for mobile devices on Cloud platforms

The marketplace for apps is ever expanding, increasing the potential to make money. With this guide, you'll learn how to build cross-platform applications for mobile devices that are supported by the power of Cloud-based services such as Amazon Web Services. An introduction to Cloud-based applications explains how to use HTML5 to create cross-platform mobile apps and then use Cloud services to enhance those apps. You'll learn how to build your first app with HTML5 and set it up in the Cloud, while also discovering how to use jQuery to your advantage.

• Highlights the skills and knowledge you need to create successful apps for mobile devices with HTML5
• Takes you through the steps for building web applications for the iPhone and Android
• Details how to enhance your app through faster launching, touch vs. click, storage capabilities, and a cache
• Looks at how best to use JSON, FourSquare, jQuery, AJAX, and more
• Shares tips for creating hybrid apps that run natively

If you're interested in having your application be one of the 200,000+ apps featured in the iPhone store or the 50,000+ in the Android store, then you need this book.

Create cross-platform mobile apps without having to learn a new language!

PhoneGap is an open source solution, ideal for web developers wanting to build cross-platform mobile apps without having to learn a new language. Using HTML, CSS, and Javascript, PhoneGap allows you to jump into the mobile world and develop apps for iPhone, Android, and the BlackBerry.

• Walks you through installing the development software
• Covers the basics of each of PhoneGap's functional units
• Introduces various projects you can build with the framework
• Discusses using HTML, CSS, JavaScript
• Explores the features accelerameter and compass
• Examines media, storage and files, camera, contacts, geolocation, and more

Within Beginning PhoneGap, each new chapter builds on the lessons taught in the previous so that by the end of the book, you can have mobile apps up and running!

NOTE: Several significant changes to the PhoneGap software occurred shortly after this book was published. The author has written extra pages to address these and other changes. You can download the updates to this book from the book's support page on the Wrox website.

Create cross-platform mobile apps without having to learn a new language! PhoneGap is an open source solution, ideal for web developers wanting to build cross-platform mobile apps without having to learn a new language. Using HTML, CSS, and Javascript, PhoneGap allows you to jump into the mobile world and develop apps for iPhone, Android, and the BlackBerry. Walks you through installing the development software Covers the basics of each of PhoneGap's functional units Introduces various projects you can build with the framework Discusses using HTML, CSS, JavaScript Explores the features accelerameter and compass Examines media, storage and files, camera, contacts, geolocation, and more Within Beginning PhoneGap, each new chapter builds on the lessons taught in the previous so that by the end of the book, you can have mobile apps up and running!'NOTE: Several significant changes to the PhoneGap software occurred shortly after this book was published. The author has written extra pages to address these and other changes. You can download the updates to this book from the book's support page on the Wrox website.' Professional JavaScript for Web Developers, 3rd Edition begins with an indepth introduction to the JavaScript Language and then progresses to break down how JavaScript is applied for web development using the latest web development technologies. This latest edition is updated to fully cover HTML5 and other siginificant advances in Web Development as it realtees to JavaScript. Topic covered include: JavaScript language basics and syntax How JavaScript is implemented into HTML Objecte Oriented JavaScript Browser/Feature Detection in Scripts The HTML Document Object Model (DOM) Event driven JavaScript Development Graphics Development with Native Drag and Drop Controlling the and media elements Error reporting and Debugging Scripting XML JSON and AJAX Offline Application and Data Storage Best Practices Emerging JavaScript API's Much More. "PhoneGap is an open source solution, ideal for web developers wanting to build cross-platform mobile apps without having to learn a new language. Using HTML, CSS, and Javascript, PhoneGap allows you to jump into the mobile world and develop apps for iPhone, Android, and the BlackBerry. This book: walks you through installing the development software; covers the basics of each of PhoneGap's functional units; introduces various projects you can build with the framework; discusses using HTML, CSS, JavaScript; explores the features accelerameter and compass; examines media, storage and files, camera, contacts, geolocation, and more. Within Beginning PhoneGap, each new chapter builds on the lessons taught in the previous so that by the end of the book, you can have mobile apps up and running!"--Publisher's description "A significant update to a bestselling JavaScript book. As the key scripting language for the web, JavaScript is supported by every modern web browser and allows developers to create client-side scripts that take advantage of features such as animating the canvas tag and enabling client-side storage and application caches. After an in-depth introduction to the JavaScript language, this updated edition of a bestseller progresses to break down how JavaScript is applied for web development using the latest web development technologies. Veteran author and JavaScript guru Nicholas Zakas shows how JavaScript works with the new HTML5 as well as other significant advances in web development as it relates to JavaScript"--Provided by publisher With this guide, you'll get the necessary skills and knowledge to build applications for mobile devices. After an introduction to cloud-based applications, you'll explore how to build mobile Web apps in the cloud that enhance the user experience and work with cloud services Provides information on using XMPP to build applications or add new features to current applications, covering such topics as the debugging console, the identica client, service discovery, event handling, and plugins.