Debug trong Ruby mà không cần dùng thư viện

# door.rb
class Door
  def initialize
    @open = false
    binding.irb
    puts "Is the door open: #{@open}"
  end
end

Door.new

Documentos/scripts/ruby via 💎 v3.2.2
❯ ruby door.rb

From: door.rb @ line 4 :

    1: class Door
    2:   def initialize
    3:     @open = false
 => 4:     binding.irb
    5:     puts "Is the door open: #{@open}"
    6:   end
    7: end
    8:
    9: Door.new

irb(#<Door:0x00007fa9a0f367a8>):001> @open
=> false
irb(#<Door:0x00007fa9a0f367a8>):002> @open=true
=> true
irb(#<Door:0x00007fa9a0f367a8>):003> exit
Is the door open: true