From: Douglas F Shearer <dougal.s@...>
Date: 2007-08-29T08:47:12+09:00
Subject: Re: idiomatic way to assign if not nil?

Hi Jay

On 29 Aug 2007, at 00:30, Jay Levitt wrote:

> a = b if b
>
> Does that exist in a DRYer form?

Best I could come up with just now was:

a = b || a

 > a = 123
=> 123
 > b = nil
=> nil
 > a = b || a
=> 123
 >a
=> 123
 > b = 456
=> 456
 > a = b || a
=> 456
 > a
=> 456

Cheers.

Douglas F Shearer
dougal.s@gmail.com
http://douglasfshearer.com