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

chop! 

        # String.chop!

(from ruby core)
---
    str.chop!   -> str or nil

---

Processes *str* as for String#chop, returning *str*, or `nil` if *str*
is the empty string.  See also String#chomp!.

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.