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

DOM traversal methods


After creating a jQuery object using $(), we can alter the set of matched elements we are working with by calling one of these DOM traversal methods. DOM traversal methods are discussed in detail in Chapter 2, Selecting Elements.

Filtering

Traversal method

Returns a jQuery object containing...

.filter(selector)

Selected elements that match the given selector.

.filter(callback)

Selected elements for which the callback function returns true.

.eq(index)

The selected element at the given 0-based index.

.first()

The first selected element.

.last()

The final selected element.

.slice(start, [end])

Selected elements in the given range of 0-based indices.

.not(selector)

Selected elements that do not match the given selector.

.has(selector)

Selected elements that have a descendant matching selector.

 

 

Descendants

Traversal method

Returns a jQuery object containing...

.find(selector)

Descendant elements that match the selector.

.contents()

Child nodes (including text nodes).

.children([selector])

Child nodes...