From: Grant Hutchins <nertzy@...>
Date: 2007-10-15T10:20:10+09:00
Subject: Re: irb, to learn more...

On Oct 14, 4:08 pm, John Joyce <dangerwillrobinsondan...@gmail.com>
wrote:
> Here's an interesting thing you can do in irb:
> irb
>
> You can run an instance of irb within irb. How very Ruby!?
> In irb you can also do this:
>
> methods
>
> (or my preferred approach...)
> methods.sort
>
> irb itself has some interesting abilities.

Also you can do irb(object) and then you will be executing code in the
context of that object. In other words, you can jump into a class and
define an instance method on it directly, or jump into an instance and
toy around with its methods and instance variables all within its
context. Ctrl-D kicks you back out to the parent irb instance.