August 2015
Intermediate to advanced
224 pages
3h 54m
English
Content preview from Ruby Pocket Reference, 2nd Edition
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Chapter 1. Ruby Pocket Reference
Introduction
Ruby is an open source, object-oriented scripting language created by Yukihiro “Matz” Matsumoto and initially released in Japan in 1995. Ruby has since gained worldwide acceptance as an easy-to-learn, powerful, and expressive programming language. An interpreted language, Ruby runs on all major platforms. For the latest information on Ruby, see http://www.ruby-lang.org. For online Ruby documentation, see http://ruby-doc.org.
This edition of the Ruby Pocket Reference supports version 2.2.2 of Ruby, the current version at the time of writing.
Conventions Used in This Book
The following typographical conventions are used in this book:
- Italic
-
Indicates new terms, URLs, email addresses, filenames, and file extensions.
Constant width-
Used for program listings, as well as within paragraphs to refer to program elements such as variable or function names, databases, data types, environment variables, statements, and keywords.
Constant width bold-
Shows commands or other text that should be typed literally by the user.
Constant width italic-
Shows text that should be replaced with user-supplied values or by values determined by context.
Note
This element signifies a general note.
Using Code Examples
Supplemental material (code examples, exercises, etc.) is available for download at https://github.com/michaeljamesfitzgerald/Ruby-Pocket-Reference-2nd-Edition.
This book is here to help you get your job done. In general, if example ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.