Ruby is a multi-platform open-source, dynamic object-oriented interpreted language, created by Yukihiro Matsumoto (Matz) in 1995.

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Gems are mini-pieces of code used to perform specific duties without interfering with or becoming a direct part of your code. The code required for a gem is still part of your project’s ecosystem, but you’ve removed some overhead (and duplication) by using the gem instead of coding it up yourself.

Hopefully after reading this, you have a much deeper, and better, understanding of things like “eigenclass” and “singleton class” and understand a bit how Ruby handles the everyday operations that you do.

Ruby likes ducks. Which is to say that when we're coding, and we have an object, we don't particularly care what kind of object it is, so long as it responds to the messages we send it. It might be a Duck or a Child or a Doctor, and as long as when we call #quack we hear a noise, all is well. That's called Duck Typing, and Ruby digs it.

Here is a quick rundown of creating a simple Twitter bot in Ruby.

Small programs usually can be stored in one file so it won’t be a problem to read (and understand) them. Things start to complicate as your code grows: one day you may lose yourself in your own chaos and find it hard to organize your application.

Cryptography is used all over the world to protect data from prying eyes. If you want to protect your own data you should be familiar with this topic.

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Rust for Rubyists

Rust for Rubyists

Steve Klabnik