How do I introspect things in Ruby?

Question

For instance, in Python, I can do things like this if I want to get all attributes on an object:

>>> import sys
>>> dir(sys)
[\'__displayhook__         


        

Answer 1

If you want all the methods that you can call on something than use

>>> x.methods

If you want some help information then call help before its class

>>> help x.class

Help is a wrapper for ri within irb.