From: Thomas Hurst <tom.hurst@...>
Date: 2002-02-17T03:48:34+09:00
Subject: Re: passing blocks

* David Corbin (dcorbin@imperitek.com) wrote:

> 1) Is it possible to make the block optional?  If so, how does one
> determine that no block is present? Or, is it done by providing a
> default block?  If so, how?

def bla
        if block_given?
                yield
        else
                puts "No block given"
        end
end

bla # <- No block given

bla do
        puts "Block given"
end # <- Block given

-- 
Thomas 'Freaky' Hurst  -  freaky@aagh.net  -  http://www.aagh.net/
-
The danger is not that a particular class is unfit to govern.
Every class is unfit to govern.
		-- Lord Acton