[cHaOs667]

It's not Ruby, it's your code... :D

class Mess

  OUTPUTS = {
    1 => ->(i) { i.odd? ? "odd" : "even" },
    2 => ->(_) { "trying" },
    3 => ->(_) { "other" }
  }.freeze

  def chaos(x)
    return puts "negative" unless x.positive?
    
    [1, 2, 3].each do |i|
      puts OUTPUTS[i]&.call(i) || "other"
    end
  end

end

[cHaOs667]

And I have no idea why HN messes up my class statement... it looks good in the text field :D

[Jtsummers]

Did you start it with two spaces? That's how HN does code blocks. Two spaces added before each line. The other lines look fine because they were already indented, add two spaces before all of them and it'll look fine.