This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Thread.key? (from ruby core) --- thr.key?(sym) -> true or false --- Returns `true` if the given string (or symbol) exists as a fiber-local variable. me = Thread.current me[:oliver] = "a" me.key?(:oliver) #=> true me.key?(:stanley) #=> false
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.