From: Dominik Bathon <dbatml@...>
Date: 2005-12-06T12:03:25+09:00
Subject: Re: Speed Golf - Remove Early Dups

On Tue, 06 Dec 2005 02:27:44 +0100, ako... <akonsu@gmail.com> wrote:

> i meant in.reverse.uniq!.reverse! (the first reverse is non-destructive)

Don't chain bang methods:

>> ["i", "l", "u", "v", "f", "e", "w", "d"].reverse.uniq!.reverse!
NoMethodError: undefined method `reverse!' for nil:NilClass
         from (irb):3
         from :0

They return nil if nothing changed...