Dawnload Web Development With JQuery Second Edition By Richard York easily in PDF format for free


JQUERY HAS BECOME ESSENTIAL in the world of web development. jQuery’s mission as a JavaScript library is simple: It strives to make the lives of web developers easier by making many tasks much easier. jQuery began as a library to patch cross-browser inconsistencies, to make developing in JavaScript easier, while it still provides a lot of cross-browser normalization. As browsers have advanced and fi lled in holes in compatibility, jQuery has become leaner, more effi cient, and better at fulfi lling the task of providing an API that makes developing JavaScript easier.
jQuery has the proven capability to reduce many lines of ordinary JavaScript to just a few lines, and, in many cases, just a single line of jQuery-enabled JavaScript. The trade-off is including the additional size and complexity of the jQuery library (and possibly additional related downloads) in the materials your users need to obtain to use your website or application. This is less of a trade-off today as more and more people have access to high-speed Internet. High-speed internet, although still pathetic in the United States when compared to some other nations, has inched up in overall speed




So, the additional download isn’t all that much when you consider the big picture. jQuery strives to remove barriers in JavaScript development by removing redundancy wherever possible. jQuery 1.9 and earlier focus more on normalizing cross-browser JavaScript development in key areas where browsers would otherwise differ, such as Microsoft’s Event API and the W3C Event API, and other, more remedial tasks such as getting the mouse cursor’s position when an event has taken place. With the normalization efforts taking place in the browsers, jQuery 2.0 can shed a great deal of legacy baggage that focused on bridging things such as event compatibility between Internet Explorer and everyone else.
Now, the latest version of Internet Explorer has the standard event API in strict standards rendering mode, so when you include the right Document Type Declaration, there is no need to bridge event support. jQuery 1.9 should be used if you need to work with older versions of Internet Explorer, such as IE8. Both jQuery 1.9 and jQuery 2.0 work with all the modern browsers, including the latest versions of Safari, Firefox, Google Chrome, and Internet Explorer. Getting started with jQuery is easy—all you need to do is include a single script in your HTML or XHTML documents to include the base jQuery JavaScript library.




Throughout this book, jQuery’s API (Application Programming Interface) components are demonstrated in detail and show you how everything within this framework comes together to enable you to rapidly develop web applications.This book also covers the jQuery UI library, which makes redundant user interface (UI) tasks on the client side easier and more accessible to everyday web developers who might not have much JavaScript programming expertise. The jQuery UI library includes widgets such as dialogs, tabs, accordions, and a datepicker; for a complete demonstration A large, thriving community of jQuery plugins is available for free, and a few of the most popular are covered. In addition, you learn how to create your own jQuery plugins, from simple to complex. For further knowledge of JavaScript beyond what is covered in this book, check out Professional JavaScript for Web Developers, 3rd Edition (2012), by Nicholas C. Zakas.

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