From: Tim Hunter <cyclists@...>
Date: 2004-09-06T08:55:12+09:00
Subject: Re: nuby question

rbrooks wrote:

> Hello all,
> 
> I just started looking at Ruby, and I really like what I see. I'm just at
> the 'toying' stage at the moment, trying to learn the syntax, and adapt to
> a new way of looking at code. I've got the following snippet that gives me
> an error. I'm fairly certain that this will turn out to be a pretty dumb
> question, but if I don't ask it, I'll never learn. Why does this:
> 
> ...
> i=0
> namelist.each do |aword|
>     if aword > namelist[i+1]
>          ...
>     end
>     i += 1
> end
> ...
> 
> give me the following error?
> sortlist.rb:19:in '>': undefined method '>' for false:FalseClass
> (NoMethodError)
> 
>         from sortlist.rb:19
>         from:sortlist.rb:17:in 'each'
>         from:sortlist.rb:17
> 
> Thanks for any assistance,
> 
> randy

I don't know what's in your namelist array, but it looks to me like somehow
it's gotten a 'false' value as one of the entries. 

Also, check out the each_with_index method in Enumerable.