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

Scraping the page for microdata


Now that we've got our content script in place, we can interact with any web page that the user of the extension visits and check whether it has any microdata attributes.

At this point, any element containing microdata is highlighted to the user, so we need to add the functionality that will allow the user to view the microdata and save it if he/she wishes, which is what we'll be covering in this task.

Engage Thrusters

Directly after where we add a class name to each element that has an itemtype attribute in content.js, add the following code:

person.children().each(function (j) {

    var child = person.children().eq(j),
        iProp = child.attr("itemprop");

    if (iProp) {

        if (child.attr("itemscope") !== "") {

            if (iProp === "email" || iProp === "telephone") {
                contactMethods[iProp] = child.text();
            } else {
                data[iProp] = child.text();
            }
        } else {

            var content ...