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

By Shawn M. Lauriat

“I a great deal loved how this publication covers the entire Ajax software lifecycle and never simply coding ideas. a person who's seeking to turn into a qualified front-end developer will get pleasure from the architectural perception and most sensible practices introduced by means of this book.”  — Andi Gutmans, Co-Founder & Co-Chief know-how Officer of Zend applied sciences   Mission-Critical Ajax: Maximizing Scalability, functionality, safety, 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, supplying confirmed styles and strong code examples to be had in no different booklet. You’ll locate most sensible practices for addressing the whole spectrum of matters company Ajax builders face: scalability, functionality, protection, reliability, flexibility, maintainability, and reusability.   Writing for skilled internet builders, Lauriat provides clean principles and chic suggestions: meaty technical content material, provided with extraordinary readability. one of several issues he covers in unheard of intensity: cleanly imposing JavaScript customized occasions to minimize coupling and to reinforce flexibility; overcoming Ajax’s conventional accessibility obstacles; decreasing community latency via compression and different recommendations; and lots more and plenty extra. assurance 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 aspect for safety and performance, whereas limiting loaded facts, items, and activities to present requests preserving opposed to the main frequent and demanding Ajax protection hazards Optimizing each portion 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 company functions in regards to the website This book’s better half website ( doesn’t simply offer all of the code: It indicates code examples in motion, as development blocks of a true internet program interface.

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Even properly indented, syntax-highlighted code becomes an unreadable mess when you cannot make out a particular element’s relation to the structure of the page. Having more readable code is easier to maintain and takes much less training time than having new employees or contributors paging through dozens of different class definitions to have almost the same ability to deduce the page structure. In addition, your page weight will drop when using semantic markup, as you will suddenly not require class references and definitions in order to emulate what the header tags, lists, blockquotes, and other tags already give you.

The screen reader announces “Important Items” as a heading with a particular level, informing the user as to the section’s relationship to the document as a whole. 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.

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Lots of post text. Lots of post text. Lots of post text. 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.

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