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
About the Authors
About the Reviewer
Customer Feedback

Taking fine-grained control of animations

Even though we've looked at a number of advanced features, jQuery's effects module has much more to explore. A rewrite of this module for jQuery 1.8 introduced a number of ways for advanced developers to fine-tune various effects and even change the underlying engine that drives the animations. For example, in addition to offering options such as duration and easing, the .animate() method provides a couple of callback options that let us inspect and modify an animation each step of the way:

  height: '200px', 
  width: '400px' 
}, { 
  step(now, tween) { 
   // monitor height and width 
   // adjust tween properties 
  progress(animation, progress, remainingMs) {} 

The step() function, which is called roughly once every 13 milliseconds for each animated property during the animation, allows us to adjust properties of the tween object such as the end value, the type of easing, or the actual property being animated based...