I am learning ruby. I was wondering if the The Ruby Programming Language book is still valid in ruby 2.2.2 even though the book is written for ruby 1.8 and 1.9?
is The Ruby Programming Language book still valid in ruby 2.2.2?
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The Well Grounded Rubyist has been published more recently than that, and covers Ruby 2.1. There weren't any large changes between 2.1 and 2.2, so that book should cover everything you need to know.