This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Integer.- (from ruby core) --- self - numeric -> numeric_result --- Performs subtraction: 4 - 2 # => 2 -4 - 2 # => -6 -4 - -2 # => -2 4 - 2.0 # => 2.0 4 - Rational(2, 1) # => (2/1) 4 - Complex(2, 0) # => (2+0i)
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.