From: "David A. Black" <dblack@...>
Date: 2008-05-09T06:51:24+09:00
Subject: Re: scramble sentence, how to better program?

Hi --

On Fri, 9 May 2008, S2 wrote:

> David A. Black wrote:
>
>> print "Enter a sentence: "
>> puts gets.split.sort_by { rand }.join(" ")
>
> but does this take into account that rand could generate the same numer two
> times? while that is not likely, it could happen.

I'm by no means a random number expert/theorist, but the above is a
very common idiom. I don't really know how it holds up under full
scrutiny. There's probably some discussion of that in the archives.


David

-- 
Rails training from David A. Black and Ruby Power and Light:
   INTRO TO RAILS         June 9-12            Berlin
   ADVANCING WITH RAILS   June 16-19           Berlin
   INTRO TO RAILS         June 24-27           London (Skills Matter)
See http://www.rubypal.com for details and updates!