From: Gary Wright <gwtmp01@...>
Date: 2007-03-06T11:45:48+09:00
Subject: Re: Newbie Question


On Mar 5, 2007, at 8:40 PM, Dick K. wrote:
> What I am really looking for is the concept of lvalue's.  There are  
> many
> other situations where they come in handy.  Another contrived example
> might be:
>
> a = \array[123]['abc']['def']
> if (some_condition)
>   return a
> a = some_value
>
> then you don't compute the index for array twice.

There is nothing like that in Ruby.  You can avoid some of
the extra lookups in your example:

container = array[123]['abc']
if (come_condition)
   return container['def']
else
container['def'] = some_value

The example seems a bit contrived. I think with some more
context a better solution might be found.

Gary Wright