This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# IPAddr.mask (from ruby core) --- mask(prefixlen) --- Returns a new ipaddr built by masking IP address with the given prefixlen/netmask. (e.g. 8, 64, "255.255.255.0", etc.)
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.