Book Image

jQuery HOTSHOT

By : Dan Wellman
Book Image

jQuery HOTSHOT

By: Dan Wellman

Overview of this book

jQuery is used by millions of people to write JavaScript more easily and more quickly. It has become the standard tool for web developers and designers to add dynamic, interactive elements to their sites, smoothing out browser inconsistencies and reducing costly development time.jQuery Hotshot walks you step by step through 10 projects designed to familiarise you with the jQuery library and related technologies. Each project focuses on a particular subject or section of the API, but also looks at something related, like jQuery's official templates, or an HTML5 feature like localStorage. Build your knowledge of jQuery and related technologies.Learn a large swathe of the API, up to and including jQuery 1.9, by completing the ten individual projects covered in the book. Some of the projects that we'll work through over the course of this book include a drag-and-drop puzzle game, a browser extension, a multi-file drag-and-drop uploader, an infinite scroller, a sortable table, and a heat map. Learn which jQuery methods and techniques to use in which situations with jQuery Hotshots.
Table of Contents (18 chapters)
jQuery HOTSHOT
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Automating scrolling


At this point, we should be able to click on any of the links in the navigation menu we added to the fixed element, and the page will jump to bring the corresponding section into view. The fixed element will still be fixed into place.

The jump to the section is quite jarring however, so in this task we'll scroll each section into place manually so that the jump to each section is not so sudden. We can also animate the scroll for maximum aesthetic effect.

Engage Thrusters

For this task we should add another event handler, this time for click events on the links in the navigation list, and then animate the page scroll to bring the selected <section> into view.

First, we can add a general function for scrolling the page which accepts some arguments and then performs the scroll animation using those arguments. We should define the function using the following code directly after the one() method that we added in the last task:

function scrollPage(href, scrollAmount, updateHash...