From: botp <botpena@...>
Date: 2012-05-01T19:36:23+09:00
Subject: Re: delete character from array

another variant,

> s=("a".."z").to_a.join
=> "abcdefghijklmnopqrstuvwxyz"
> "".tap{|o| s.each_char.with_index{|c,i| o << c if (i+1)%3 != 0 }}
=> "abdeghjkmnpqstvwyz"

kind regards -botp