From: "David A. Black" <dblack@...>
Date: 2004-09-28T06:07:01+09:00
Subject: Re: {newb} Each statements

Hi --

On Tue, 28 Sep 2004, Bill Guindon wrote:

> On Tue, 28 Sep 2004 05:13:30 +0900, STEPHEN BECKER I V
> <becker004@gmail.com> wrote:
> > Do each statements change the thing that they are using?
> > data is a a string.
> 
> no, but map! and collect! do, but they only work on Arrays, not
> Strings.  So first, you'll need to split the string into an Array...
> for strings, each_byte will do that.
> 
> srand(5000)
> ndata = ''
> a = data.size-1
> data.each_byte  do |c|
>   ndata += (((c-97)+rand(10))%26).chr
> end

That's a bit inefficient, because each time through you're creating a
new string in ndata.  You could use << to append instead.  


David

-- 
David A. Black
dblack@wobblini.net