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

length

        # Set.length

(from ruby core)
---
    length()

---

(This method is an alias for Set#size.)

Returns the number of elements.



      

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.