From: Jeff Peng <jeffpeng@...>
Date: 2010-01-02T21:38:30+09:00
Subject: Re: block.call

Ruby Newbee:
> thanks.
> but why in the function block.call can be executed?
> 


An incoming code block will be converted into a Proc object and bound
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
to the block variable. You can pass it around to other methods, call it 
directlyusing call,or yield to it as though you’d never bound it to a 
variable at all.