From: Stefan Walk <stefan.walk@...>
Date: 2006-01-31T18:50:12+09:00
Subject: Re: Set#merge

Joel VanderWerf wrote:
> Can anybody explain why Set#merge is destructive, but Hash#merge is not?
> 

Probably the same reason that Array#delete is destructive, but 
String#delete is not.

Regards,
Stefan