From: Erik Veenstra <erikveen@...>
Date: 2007-12-14T20:41:27+09:00
Subject: Re: suprised by destructive map (not map!)

> array.map{|a| a += [3]}
>
> That expands to:
>
> array.map{|a| a = a + [3] }

You might want to skip the useless assignment:

 array.map{|a| a + [3]}

gegroet,
Erik V. - http://www.erikveen.dds.nl/