@raccoon oh! something that will help a lot with ruby:
gem install pry pry-doc pry-byebug
with pry you can navigate namespaces like directory structures. so, literally typing "ls" to see the things that are defined, and "cd"-ing into them
with pry-doc, you can pull up documentation for the things you see with ls by typing "? <thing>"
with pry-byebug, if you "require 'pry'" in a file and put "binding.pry" somewhere, it drops you to a debugger at that line, and you can do the other pry things
@raccoon oh, also, byebug isn't actually necessary for the "binding.pry" thing--it just adds commands like "step", "next" and so on so you can run code line by line
it also gives you "up" and "down" to inspect the thing that called that function
all in all, the idea behind suggesting these things is to make it easy to explore the language, since you can experiment and play around in pretty compelling ways like this