From: Austin Ziegler <austin@...>
Date: 2002-11-21T23:53:31+09:00
Subject: Re: difference between "and" and "&&"

On Thu, 21 Nov 2002 20:45:30 +0900, Gavin Sinclair wrote:
> result = value && value.size
> param = param || default_value
> action() and consequent_action()
> action() or alternative_action()
> 
> Without *thinking* about precedence, the code above just reads
> nicely: the subtleties of the intended high-level intention are
> communicated very well through the symbols used.

It also works very well if you do:

  param = param || default_value and handle(param)

This way, handle(param) is only called if the result of param ||
default_value is true.

-austin
-- Austin Ziegler, austin@halostatue.ca on 2002.11.21 at 09.51.47