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Learning jQuery - Fourth Edition

Learning jQuery - Fourth Edition

4.2 (20)
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Learning jQuery - Fourth Edition

Learning jQuery - Fourth Edition

4.2 (20)

Overview of this book

To build interesting, interactive sites, developers are turning to JavaScript libraries such as jQuery to automate common tasks and simplify complicated ones. Because many web developers have more experience with HTML and CSS than with JavaScript, the library's design lends itself to a quick start for designers with little programming experience. Experienced programmers will also be aided by its conceptual consistency. LearningjQuery - Fourth Edition is revised and updated version of jQuery. You will learn the basics of jQuery for adding interactions and animations to your pages. Even if previous attempts at writing JavaScript have left you baffled, this book will guide you past the pitfalls associated with AJAX, events, effects, and advanced JavaScript language features. Starting with an introduction to jQuery, you will first be shown how to write a functioning jQuery program in just three lines of code. Learn how to add impact to your actions through a set of simple visual effects and to create, copy, reassemble, and embellish content using jQuery's DOM modification methods. The book will take you through many detailed, real-world examples, and even equip you to extend the jQuery library itself with your own plug-ins.
Table of Contents (24 chapters)
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Learning jQuery Fourth Edition
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Effects and duration


When we include a duration (sometimes also referred to as a speed) with .show() or .hide(), it becomes animated—occurring over a specified period of time. The .hide(duration) method, for example, decreases an element's height, width, and opacity simultaneously until all three reach zero, at which point the CSS rule display: none is applied. The .show(duration) method will increase the element's height from top to bottom, width from the left-hand side to the right-hand side, and opacity from 0 to 1 until its contents are completely visible.

Speeding in

With any jQuery effect, we can use one of the two preset speeds, 'slow' or 'fast'. Using .show('slow') makes the show effect complete in 600 milliseconds (0.6 seconds), .show('fast') in 200 milliseconds. If any other string is supplied, jQuery's default animation duration of 400 milliseconds will be used. For even greater precision, we can specify a number of milliseconds: for example, .show(850). Note that in this case...

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