From: Jos Backus <josb@...>
Date: 2002-02-19T05:10:53+09:00
Subject: Re: _The Ruby Way_: Call for errata

On Tue, Feb 19, 2002 at 04:57:39AM +0900, Kent Dahl wrote:
> _____
> * p52
> "Because unless is the opposite of if, the else clause 
>  will be executed if the condition is false."
> 
> I thought it was the opposite:
>   unless false then "THEN" else "ELSE" end  #=> "THEN"

Heh, I spotted this one.

> ______
> * s140
> "The method length [...] the number of elements in an array. 
>  Note that this is one less than the index of the last item:"
> 
> Isn't it the opposite?
>   a = ["first", "second", "last" ]
>   a.size            #=> 3
>   a.index("last")   #=> 2

I didn't catch this one.

Hal should have over a dozen e-mails from me with corrections :-) Hopefully he
has kept them because I didn't.

> If these aren't errors, I hope someone can plaster the hole in my head
> that is leaking. :-)
> 
> Unfortunately, I haven't gotten much farther than this yet. I'll keep my
> eyes open for other compile errors in my head as I read along. (What
> I've read so far is quite excellent!)

I'm on page 270 and agree that it is a great book.

-- 
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