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By Shawn M. Lauriat
“I greatly loved how this publication covers the total Ajax program lifecycle and never simply coding innovations. someone who's seeking to develop into a certified front-end developer will enjoy the architectural perception and most sensible practices brought through this book.” — Andi Gutmans, Co-Founder & Co-Chief expertise Officer of Zend applied sciences Mission-Critical Ajax: Maximizing Scalability, functionality, defense, Reliability, and Maintainability complex Ajax: structure and top Practices is the definitive consultant to development business-critical, production-quality internet functions with Ajax. Shawn M. Lauriat systematically addresses the layout, structure, and improvement concerns linked to Ajax, providing confirmed styles and powerful code examples to be had in no different e-book. You’ll locate top practices for addressing the complete spectrum of matters company Ajax builders face: scalability, functionality, safeguard, reliability, flexibility, maintainability, and reusability. Writing for skilled internet builders, Lauriat gives you clean rules and chic recommendations: meaty technical content material, offered with remarkable readability. among the subject matters he covers in extraordinary intensity: cleanly enforcing JavaScript customized occasions to minimize coupling and to reinforce flexibility; overcoming Ajax’s conventional accessibility obstacles; lowering community latency via compression and different innovations; and masses extra. insurance comprises making plans Ajax interfaces for simplicity, readability, and intuitiveness developing scalable, maintainable architectures for client-side JavaScript utilizing the most recent instruments to profile, validate, and debug client-side code Architecting the server part for defense and performance, whereas proscribing loaded info, items, and activities to present requests retaining opposed to the main common and important Ajax safeguard hazards Optimizing each element of an Ajax software, from server-side scripts to database interactions Introducing state-of-the-art Ajax: online game improvement, Ajax with canvas, and Ajax for company functions concerning the site This book’s significant other site (http://advancedajax.frozen-o.com) doesn’t simply supply all of the code: It indicates code examples in motion, as development blocks of a true internet program interface.
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Extra resources for Advanced Ajax: Architecture and Best Practices
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Mozilla has much better DOM support, but the margins don’t quite match. Opera has almost everything correct, though it still lacks control over the character spacing and dimensions. Safari has support for current drafts of a few CSS3 properties and much more precise control over character spacing, kerning, and margins. 13 An increasing amount of accurate support. 13 shows an increasing amount of accurate support. ) Coding CSS and JavaScript unobtrusively not only makes it easier for the interface to degrade gracefully, but also it encourages clearer lines between interface structure, design, and behavior.
As many accessibility advocates have rightfully pointed out, coding for those with disabilities doesn’t mean coding merely for the greater good in a way that makes developers feel better about themselves. It also means coding for their future selves, as the vast majority of people who grow elderly have their senses dimmed in one way or another. Having your eyesight grow worse as you grow older does not seem a peculiar notion, and developers need to code with the mindset that their efforts 44 WCAG and Section 508 45 will survive until they need assistive technology (at the very least, zoomable screens) in order to use the very technology written today.
In addition, screen readers (and some browsers and browser extensions) allow the user to navigate around the page by jumping from header to header, using the header levels to structure the page hierarchically. This increases the flexibility of a spoken page, giving control over the content read to the user, and reduces the time spent waiting to reach a given place in the page. After reading the header, the screen reader announces the list of links as a list containing three items. This keeps the links list from sounding like an unidentified number of paragraphs, each having one link.