Ruby Rogues
The Hidden Gems of Ruby - RUBY 651
Valentino Stoll
Sure. Yeah, I mean... IRB is basically just a REPL. You give it input and it'll evaluate the Ruby that you give it, analyze the syntax of it, and then directly show you the output for whatever that it is that you give it. So people work in REPLs all the time. If you open up any console, that's a REPL in a bash shell, basically. But Ruby's IRB kind of has a hierarchy to it.
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