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

Mission Accomplished


In this project we've covered most of the basics of building a Chrome extension. We covered creating a browser action that triggers a popup when it is clicked in order to display saved contacts.

We also saw how we can safely sandbox pages that need to run dangerous code such as eval() or new Function in order to protect our extension from XSS attacks, and how we can use the simple messaging API to send messages and receive responses to an <iframe> element containing the sandboxed page.

We saw that as well as defining scripts that run in the context of the extension, we can also add content scripts that run in the context of the web page being displayed in the browser. We also learned how to use the manifest.json file to specify these different areas of our extension.

We also saw that we can use a much more advanced messaging system that allows us to open ports that allow for more than simple one-way messages. Communicating via ports allows us to send as many messages...