Download PDF by Shawn M. Lauriat: Advanced Ajax: Architecture and Best Practices

By Shawn M. Lauriat

ISBN-10: 0131350641

ISBN-13: 9780131350649

“I a great deal loved how this booklet covers the whole Ajax software lifecycle and never in simple terms coding innovations. a person who's trying to turn into a qualified front-end developer will relish the architectural perception and most sensible practices added by way of this book.”  — Andi Gutmans, Co-Founder & Co-Chief know-how Officer of Zend applied sciences   Mission-Critical Ajax: Maximizing Scalability, functionality, protection, Reliability, and Maintainability   complex Ajax: structure and most sensible Practices is the definitive advisor to development business-critical, production-quality net functions with Ajax. Shawn M. Lauriat systematically addresses the layout, structure, and improvement concerns linked to Ajax, providing confirmed styles and strong code examples on hand in no different publication. You’ll locate top practices for addressing the complete spectrum of matters company Ajax builders face: scalability, functionality, safety, reliability, flexibility, maintainability, and reusability.   Writing for skilled net builders, Lauriat supplies clean principles and chic suggestions: meaty technical content material, provided with extraordinary readability. one of several issues he covers in extraordinary intensity: cleanly imposing JavaScript customized occasions to minimize coupling and to augment flexibility; overcoming Ajax’s conventional accessibility obstacles; decreasing community latency via compression and different options; and masses extra. insurance contains  making plans Ajax interfaces for simplicity, readability, and intuitiveness growing scalable, maintainable architectures for client-side JavaScript utilizing the newest instruments to profile, validate, and debug client-side code Architecting the server facet for safety and performance, whereas limiting loaded info, gadgets, and activities to present requests retaining opposed to the main frequent and demanding Ajax protection hazards Optimizing each section of an Ajax software, from server-side scripts to database interactions Introducing state of the art Ajax: video game improvement, Ajax with canvas, and Ajax for firm functions concerning the site This book’s significant other website (http://advancedajax.frozen-o.com) doesn’t simply supply the entire code: It indicates code examples in motion, as construction blocks of a true net software interface.

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Extra info for Advanced Ajax: Architecture and Best Practices

Sample text

Note that the assistive application must describe, as well as read. As touched upon in Chapter 1, semantic markup makes these descriptions much more relevant and meaningful to someone who does not (for example) have the ability to tell at a glance that four links have anything to do with each other, let alone that they provide navigation access to other parts of the web application. A common misconception among Ajax developers and users alike is that screen readers cannot handle dynamic content.

For example, when displaying mathematics, use MathML, a language to describe mathematics in a way communicable from one machine to another, rather than an image showing the equation or formula in question. As an example, the following markup for the area of a pie, with a thickness of a and a radius of z, makes for a much more accessible display than an image rendering. 1. 1 The previous MathML example rendered in the browser. As described in a number of the checklist items, in order to meet WCAG level 2 standards, a web application must use semantic markup.

Text. Lots of post text. Lots of post text. Lots of post text. previousSibling; } } } } This gets the root element (as far as this example needs to have) and retrieves a NodeList of all ul elements contained within. It then loops through each of them, working its way from the last child node (a text node containing white space, for most of these elements) until it finds an element node. When it finds such a node, it changes the background color and breaks the loop. By contrast, the following example creates the same DOM structure from generic div elements with CSS classes defining the look and feel:3

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Advanced Ajax: Architecture and Best Practices by Shawn M. Lauriat


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