After the release of Ruby 0.95 in 1995, several stable versions of Ruby were released in these years: Ruby 1.8 was initially released August 2003, was stable for a long time, and was retired June 2013. [22] Although deprecated, there is still code based on it. Ruby 1.8 is only partially compatible with Ruby 1.9.

Ruby has been described as a multi-paradigm programming language: it allows procedural programming (defining functions/variables outside classes makes them part of the root, 'self' Object), with object orientation (everything is an object) or functional programming (it has anonymous functions, closures, and continuations; statements all have values, and functions return the last evaluation). It has support for introspection, reflection and metaprogramming, as well as support for interpreter-based threads. Ruby features dynamic typing, and supports parametric polymorphism. One of the differences from Python and Perl is that Ruby keeps all of its instance variables completely private to the class and only exposes them through accessor methods ( attr_writer, attr_reader, etc.). Unlike the "getter" and "setter" methods of other languages like C++ or Java, accessor methods in Ruby can be created with a single line of code via metaprogramming; however, accessor methods can also be created in the traditional fashion of C++ and Java. As invocation of these methods does not require the use of parentheses, it is trivial to change an instance variable into a full function, without modifying a single line of calling code or having to do any refactoring achieving similar functionality to C# and VB.NET property members. Kind of glad that they are going away to a private school after this. Ruby needs to start over and Gisselle needs to not have the upper hand with her socially. Matsumoto, Yukihiro (13 February 2006). "Re: Ruby's lisp features". Archived from the original on 2018-10-27 . Retrieved 15 February 2020.Ma Tante reached out and grabbed Ruby's right hand. She turned over her palm and pointed. "You got the mystic star. There." She took her other hand. "There, too. Lord child you ain't nothing but a doorway. How many haints you count at your heels?" Metz, Sandi (August 22, 2018), Practical Object-Oriented Design: An Agile Primer Using Ruby (Seconded.), Addison-Wesley Professional, p.288, ISBN 978-0-13-445647-8 There's a line in the book that Ephram says to Ruby: If you can bear to have lived it, I can at least bear to listen. that thought stayed with me as I read this book.

remove/virtual_module: Born to make your Ruby Code more than 3x faster. Hopefully". GitHub. 21 February 2020. grep_v(regexp) which will match all negative examples of a given regular expression in addition to other new features.

Book Summary

Tools such as RVM and RBEnv, facilitate installation and partitioning of multiple ruby versions, and multiple 'gemsets' on one machine. Ruby 3.1 was released on Christmas Day in 2021. [43] It includes YJIT, a new, experimental, Just-In-Time Compiler developed by Shopify, to enhance the performance of real world business applications. A new debugger is also included. There are some syntax enhancements and other improvements in this release. Network libraries for FTP, SMTP, IMAP, and POP are moved from default gems to bundled gems. [44]

Ruby is such an extraordinary novel. I sort of feel sorry for it and its author because I worry it will not get the attention it deserves. It's written so well and the story is so captivating, but the subject and some of those scenes will surely alienate many. and easy to follow guide to learning Ruby. Learn to Program A wonderful little tutorial by Chris Pine for programming newbies. If Fitzgerald, Michael (May 14, 2007), Learning Ruby (Firsted.), O'Reilly Media, p. 255, ISBN 978-0-596-52986-4 you don’t know how to program, start here. Learn Ruby the Hard Way A very good set of exercises with explanations that guide you from Books published under the following names - Virginia Andrews, V. Andrews, Virginia C. Andrews& V.C. Endrius. Books since her death ghost written by Andrew Neiderman, but still attributed to the V.C. Andrews nameAs of 2018 [update], there are a number of alternative implementations of Ruby, including JRuby, Rubinius, and mruby. Each takes a different approach, with JRuby and Rubinius providing just-in-time compilation and mruby also providing ahead-of-time compilation.