Book Image

Learning jQuery 3 - Fifth Edition

By : Jonathan Chaffer, Karl Swedberg
Book Image

Learning jQuery 3 - Fifth Edition

By: Jonathan Chaffer, Karl Swedberg

Overview of this book

If you are a web developer and want to create web applications that look good, are efficient, have rich user interfaces, and integrate seamlessly with any backend using AJAX, then this book is the ideal match for you. We’ll show you how you can integrate jQuery 3.0 into your web pages, avoid complex JavaScript code, create brilliant animation effects for your web applications, and create a flawless app. We start by configuring and customising the jQuery environment, and getting hands-on with DOM manipulation. Next, we’ll explore event handling advanced animations, creating optimised user interfaces, and building useful third-party plugins. Also, we'll learn how to integrate jQuery with your favourite back-end framework. Moving on, we’ll learn how the ECMAScript 6 features affect your web development process with jQuery. we’ll discover how to use the newly introduced JavaScript promises and the new animation API in jQuery 3.0 in great detail, along with sample code and examples. By the end of the book, you will be able to successfully create a fully featured and efficient single page web application and leverage all the new features of jQuery 3.0 effectively.
Table of Contents (23 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface

Manipulating attributes and properties


Throughout the first four chapters of this book, we have been using the .addClass() and .removeClass() methods to demonstrate how we can change the appearance of elements on a page. Although we discussed these methods informally in terms of manipulating the class attribute, jQuery actually modifies a DOM property called className. The .addClass() method creates or adds to the property, while .removeClass() deletes or shortens it. Add to these the .toggleClass() method, which alternates between adding and removing class names, and we have an efficient and robust way of handling classes. These methods are particularly helpful in that they avoid adding a class if it already exists on an element (so we don't end up with <div class="first first">, for example), and correctly handle cases where multiple classes are applied to a single element, such as <div class="first second">.

Non-class attributes

We may need to access or change several other...