From: Robin Pedersen <robinpeder@...>
Date: 2008-04-15T22:15:07+09:00
Subject: Re: noob 'why doesn't this work' question

On Apr 14, 5:47 pm, Vincent Angeloni <nospam7...@mac.com> wrote:
> Hi and greetings to all group members!
>
> I'm a new Ruby user with a background in Applescript, Hypertalk
> (Supercard), and a little Unix. I was intrigued by Matt Neuburg's
> article about Applescript and Ruby, and that's what got me reading some
> intro books on Ruby. I just bought Textmate and I am lovin' it!
>
> Anyway, I am wondering why this seemingly simple script fails:
>
> sizeList = [0,1,2,3,4,5,6]
> countarray = [3,4,6]
> countarray.each {|x| sizeList.delete_at(x)}
>
> what I want to happen is that sizelist gets deleted at the positions
> specified in countArray, but the result I am getting is:
>
> 0
> 1
> 2
> 4
> 6
>
> and the expected result should be 0,1,2,5, right?
> What gives?
>
> TIA,
> vince
>
> Mac OS X 10.5.2, G5 Quad, Textmate editor, ruby 1.86

What about this:

sizeList = [0,1,2,3,4,5,6]
countarray = [3,4,6]
countarray.sort.reverse.each {|x| sizeList.delete_at(x)}

Result: 0,1,2,5