From: Tim Hunter <TimHunter@...>
Date: 2008-04-03T07:13:39+09:00
Subject: Re: using a local variable for method calls

Reid Oda wrote:
> hello all,
> 
> first off, thanks for all the help this board/list has offered.  it has
> been fantastic.
> 
> a workmate of mine and i are puzzling over this problem.  here is a bit
> of pseudo code that represents it:
> 
> somehash.each_key do |key|
>   update.key "something"
> end
> 
> obviously there is a problem with using the "key" variable to make the
> method call.  how can we accomplish this elegantly?  we've considered
> this:
> 
> somehash.each_key do |key|
>   eval("update.#{key}(\"something\")")
> end
> 
> but that seems a bit cludgey.  does anyone have some advice?
> 
> -reid

Check out the _send_ method.

update._send_(key, *args)


-- 
RMagick: http://rmagick.rubyforge.org/
RMagick 2: http://rmagick.rubyforge.org/rmagick2.html