This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Hash.to_proc (from ruby core) --- hash.to_proc -> proc --- Returns a Proc object that maps a key to its value: h = {foo: 0, bar: 1, baz: 2} proc = h.to_proc proc.class # => Proc proc.call(:foo) # => 0 proc.call(:bar) # => 1 proc.call(:nosuch) # => nil
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.