This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# IO.rewind (from ruby core) --- rewind -> 0 --- Repositions the stream to its beginning, setting both the position and the line number to zero; see [Position](#class-IO-label-Position) and [Line Number](#class-IO-label-Line+Number): f = File.open('t.txt') f.tell # => 0 f.lineno # => 0 f.readline # => "This is line one.\n" f.tell # => 19 f.lineno # => 1 f.rewind # => 0 f.tell # => 0 f.lineno # => 0 Note that this method cannot be used with streams such as pipes, ttys, and sockets.
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.