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When I first came to Ruby, one of the things that impressed me the most was the killer features provided by the Enumerable module. I eventually also came to love Enumerator, even though it took me a long time to figure out what it was and what one might use it for. As a beginner, I had always assumed that these features worked through some dark form of magic that was buried deep within the Ruby in
There are many ways to load Ruby code, and that has lead to confusion over the years. In this article, I will give you the backstory behind several conventions seen in the wild and share some stories about how I use those conventions in my own code. The topic of code loading breaks up naturally into two subtopics: loading code within your own project and loading code from third-party libraries. Pe
This issue of Practicing Ruby was a collaboration with Mathias Lafeldt (@mlafeldt), an Infrastructure Developer living in Hamburg, Germany. If Mathias had to choose the one Internet meme that best describes his work, it would certainly be Automate all the things! For at least as long as Ruby has been popular among web developers, it has also been recognized as a useful tool for system administrati
This issue of Practicing Ruby was directly inspired by Nick Morgan’s Easy 6502 tutorial. While the Ruby code in this article is my own, the bytecode for the Snake6502 game was shamelessly stolen from Nick. Be sure to check out Easy 6502 if this topic interests you; it’s one of the best programming tutorials I’ve ever seen. The sea of numbers you see below is about as close to the metal as programm
Welcome to Practicing Ruby! We produce delightful lessons for Rubyists every two weeks. To support our efforts, become a paid subscriber today! This issue was a collaboration with Alberto Fernández Capel, a Ruby developer from Spain. Although it has been through many revisions since we started, Alberto's ideas, code, and explanations provided an excellent starting point that lead us to publish thi
Learn how to use Dentaku to evaluate Excel-like formulas in Ruby programs (w. Solomon White) Issue 8.2 — September 10, 2015
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