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

hash 

        # Hash.hash

(from ruby core)
---
    hash.hash -> an_integer

---

Returns the Integer hash-code for the hash.

Two Hash objects have the same hash-code if their content is the same
(regardless or order):
    h1 = {foo: 0, bar: 1, baz: 2}
    h2 = {baz: 2, bar: 1, foo: 0}
    h2.hash == h1.hash # => true
    h2.eql? h1 # => 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.