This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# IO.closed? (from ruby core) --- ios.closed? -> true or false --- Returns `true` if *ios* is completely closed (for duplex streams, both reader and writer), `false` otherwise. f = File.new("testfile") f.close #=> nil f.closed? #=> true f = IO.popen("/bin/sh","r+") f.close_write #=> nil f.closed? #=> false f.close_read #=> nil f.closed? #=> true
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.