Common Ruby Idioms

Question

One thing I love about ruby is that mostly it is a very readable language (which is great for self-documenting code)

However, inspired by this question: Ruby Code ex

Answer 1

I would suggest reading through the code of popular and well designed plugins or gems from people you admire and respect.

Some examples I've run into:

if params[:controller] == 'discussions' or params[:controller] == 'account'
  # do something here
end

corresponding to

if ['account', 'discussions'].include? params[:controller]
  # do something here
end

which later would be refactored to

if ALLOWED_CONTROLLERS.include? params[:controller]
  # do something here
end