This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

FrozenError

        # FrozenError < RuntimeError

(from ruby core)
---
Raised when there is an attempt to modify a frozen object.

    [1, 2, 3].freeze << 4

*raises the exception:*

    FrozenError: can't modify frozen Array
---
# Class methods:

    new

# Instance methods:

    receiver


      

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.