From: David Masover <ninja@...>
Date: 2009-04-06T00:44:48+09:00
Subject: Re: Function as Parameter?

On Saturday 04 April 2009 14:02:45 Tomas Na wrote:
> I am new to Ruby so I don't know a great deal about the language, but
> what I am trying to do is the following:
[snip]
> To make this happen I figured I would pass in a callback. Searching
> around, I couldn't find a lot of info about callbacks,

Search for blocks.

Your example would probably be written something like this:

LoginForm.new(xaApp,'TestApp') do |arg1, arg2|
  callback logic goes here
end

You may end up just calling a function inside that block, and that's fine. But 
the idiomatic way is likely to provide a block. If you need to pass more than 
one such "callback", you can pass proc objects, but that's often slower and 
definitely more annoying for whoever uses that class.