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xml - SQL Server SELECT to JSON function HTML5 Introduction The world’s top 50 billionaires: A demographic breakdown. Top 50 Billionaire Breakdown If you asked anyone to picture the wealthiest person in the world at any given time, you could bet on some common denominators: probably a man; probably somehow attached to the words “multinational” or “conglomerate”; probably on a yacht off a private island. With Slate’s Top 50 Billionaire Breakdown, we attempt to visualize the richest of the rich by paring them into demographic categories: age, location, industry, source of wealth, education, and religious affiliation. Some of the sortings are heartening: There are more self-made men than born-rich kids in the top 50, and the self-made billionaires’ total wealth is bigger. A note on methodology: To determine rankings for the top 50, we first consulted the most recent Forbes World's Billionaires List, but then switched to the Bloomberg Billionaires list, which updates daily and is a typically snazzy and info-dense product of Bloomberg Visual Data.

MIT OpenCourseWare Interactive Data Visualization for the Web Copyright © 2013 Scott Murray Printed in the United States of America. O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles ( For more information, contact our corporate/institutional sales department: 800-998-9938 or <corporate@oreilly.com>. Nutshell Handbook, the Nutshell Handbook logo, the cover image, and the O’Reilly logo are registered trademarks of O’Reilly Media, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. While every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein.

Developer Documentation Developer Documentation Languages: English • Español • Italiano • 한국어 • Русский • 中文(繁體) • (Add your language) Introduction WordPress is fast, lightweight, and easy to use. You may also wish to consult the Developer Documentation FAQ. WARNING: Programming Code Ahead The following articles may use programming terms without offering detailed explanations for non-programmers. Although the alteration of the downloadable files for WordPress is limited to a few distinct programmers, every WordPress user has the ability to effect change in the core WordPress code, making WordPress highly customizable. Plugin Development Writing a Plugin - The best starting place for learning about how to develop plugins WordPress Coding Standards - General information about coding standards for WordPress development Debugging in WordPress - Reference and guide for using the built-in debugging system in WordPress. APIs Contributing to WordPress Forums, Lists, and Blogs Other Information of Interest External Resources

How Selections Work Any sufficiently advanced technology is indistinguishable from magic. –Arthur C. Clarke In the past I have presented simplified descriptions of D3’s selections, providing only enough detail to get started. The structure of this article may at first seem arbitrary. D3 is a visualization library, so this article incorporates visual explanations to accompany the text. var array = [42]; Wherever possible, the code that generates the given selection appears immediately above the diagram. Let’s begin. #A Subclass of Array You were probably told that selections are arrays of DOM elements. #Grouping Elements Another reason selections aren’t literally arrays of elements is that they are arrays of arrays of elements: a selection is an array of groups, and each group is an array of elements. var selection = d3.select("body"); In the JavaScript console, try running this command and inspecting the group as selection[0] and the node as selection[0][0]. d3.selectAll("h2"); #Non-Grouping Operations

10 Websites that Teach Coding and More So you want to learn to code, do you? Well, you happen to be in luck, as it has never been easier or cheaper to learn that new skill, and there are plenty of websites that teach coding and more. They will help turn you from zero to hero, as long as you stick to it and practice, practice, practice! 1. Codeacademy Codeacademy leads you through the process of learning to program web-oriented languages. 2. The online tutorials offered by Lynda.com are recognized as some of the best e-learning courses out there. 3. Udacity aims to be the future of online higher education. 4. Coursera provides you with course materials created by a number of reputable worldwide universities. 5. If you wish to learn the majority of the web-based languages, then W3Schools is an indispensable reference site. 6. This is the place you start if you plan to develop apps for iOS and OSX. 7. For app developers wishing to learn how to code Android Java apps ready for the mobile platform, this is the place to start. 8.

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