Jquery Learning Center
With Membership
Suggested price

Jquery Learning Center

Official Documentation, compiled regularly from the source

About the Book

Up-to-date compilation of the official documentation pages, hosted on https://github.com/jquery/learn.jquery.com. Updated regularly for you to have the latest version, and provided in three different formats (epub, mobi and PDF) for the community to be able to read it offline.

If you like the work, please support!

About the Author


Bringing the best documentation for offline browsing.

Table of Contents

About This Site


About jQuery

How jQuery Works

Additional jQuery Support

Using jQuery Core

$ vs $()

$( document ).ready()

Avoiding Conflicts with Other Libraries


Selecting Elements

Working with Selections

Manipulating Elements

The jQuery Object


CSS, Styling, & Dimensions

Data Methods

Utility Methods

Iterating over jQuery and non-jQuery Objects

Using jQuery's .index() Function

Frequently Asked Questions

How do I select an item using class or ID?

How do I select elements when I already have a DOM element?

How do I test whether an element has a particular class?

How do I test whether an element exists?

How do I determine the state of a toggled element?

How do I select an element by an ID that has characters used in CSS notation?

How do I disable/enable a form element?

How do I check/uncheck a checkbox input or radio button?

How do I get the text value of a selected option?

How do I replace text from the 3rd element of a list of 10 items?

How do I pull a native DOM element from a jQuery object?


jQuery Event Basics

Event Helpers

Introducing Events

Handling Events

Inside the Event Handling Function

Understanding Event Delegation

Triggering Event Handlers

History of jQuery Events

Introducing Custom Events

jQuery Event Extensions


Introduction to Effects

Custom Effects with .animate()

Queue & Dequeue Explained


Key Concepts

jQuery's Ajax-Related Methods

Ajax and Forms

Working with JSONP

Ajax Events


Finding & Evaluating Plugins

How to Create a Basic Plugin

Advanced Plugin Concepts

Writing Stateful Plugins with the jQuery UI Widget Factory


Append Outside of Loops

Cache Length During Loops

Detach Elements to Work with Them

Don't Act on Absent Elements

Optimize Selectors

Use Stylesheets for Changing CSS on Many Elements

Don't Treat jQuery as a Black Box

Code Organization

Code Organization Concepts

Beware Anonymous Functions

Keep Things DRY

Feature & Browser Detection


jQuery Deferreds

Deferred examples

jQuery UI

Getting Started with jQuery UI

How jQuery UI Works

Theming jQuery UI

Using jQuery UI ThemeRoller

Widget Factory

Why Use the Widget Factory?

How To Use the Widget Factory

Widget Method Invocation

Extending Widgets with the Widget Factory

Using the classes Option

Using jQuery UI

Using jQuery UI with AMD

Using jQuery UI with Bower

jQuery Mobile

Getting Started with jQuery Mobile

Creating a Custom Theme with ThemeRoller

Causes Supported

Electronic Frontier Foundation

Defending your civil liberties in a digital world.

Based in San Francisco, EFF is a donor-supported membership organization working to protect fundamental rights regardless of technology.

From the Internet to the iPod, technologies are transforming our society and empowering us as speakers, citizens, creators, and consumers. When our freedoms in the networked world come under attack, the Electronic Frontier Foundation (EFF) is the first line of defense. EFF broke new ground when it was founded in 1990—well before the Internet was on most people's radar—and continues to confront cutting-edge issues defending free speech, privacy, innovation, and consumer rights today. From the beginning, EFF has championed the public interest in every critical battle affecting digital rights.

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

80% Royalties. Earn $16 on a $20 book.

We pay 80% royalties. That's not a typo: you earn $16 on a $20 sale. If we sell 5000 non-refunded copies of your book or course for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earnedover $13 millionwriting, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub