From: atbusbook@...
Date: 2006-09-19T04:26:21+09:00
Subject: Re: do .. unless


Devin Mullins wrote:
> Josselin wrote:
> >
> > is there any better way to write  that :
> >
> > if !params[:qaddress].nil?
> >         cond_b = EZ::Where::Condition.new :properties do
> >         ...
> >         end
> >  end
> >
> > using a  do.. unless ?  something like that ??
> >
> >         cond_b = EZ::Where::Condition.new :properties do
> >         ...
> >         end  unless params[:qaddress].nil?
> Well, the unless modifier works here -- if qaddress is nil, cond_b is
> set to nil. Here's another way:
>    cond_b = if params[:qaddress]
>      EZ::Where::Condition.new :properties do
>         ...
>      end
>    end
>
> Fnord

<code>
begin
  # do stuff
end while false
</code>
will be done once