This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Gem::Specification.<=> (from ruby core) ### Implementation from Object --- obj <=> other -> 0 or nil --- Returns 0 if `obj` and `other` are the same object or `obj == other`, otherwise nil. The #<=> is used by various methods to compare objects, for example Enumerable#sort, Enumerable#max etc. Your implementation of #<=> should return one of the following values: -1, 0, 1 or nil. -1 means self is smaller than other. 0 means self is equal to other. 1 means self is bigger than other. Nil means the two values could not be compared. When you define #<=>, you can include Comparable to gain the methods #<=, #<, #==, #>=, #> and #between?.
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.