From: Tim Hunter <TimHunter@...>
Date: 2007-12-20T09:27:40+09:00
Subject: Re: slicing in ruby

Robert Citek wrote:
> Found it: indices, which is deprecated in favor of values_at.
> 
> $ echo $(seq 1 10) | tee /dev/stderr |  ruby -lane 'print
> $F.values_at(1,2,3,8,2,2).join(" -- ") '
> 1 2 3 4 5 6 7 8 9 10
> 2 -- 3 -- 4 -- 9 -- 3 -- 3
> 
> Discovered this with a brute-force search:
> 
> ruby -e 'puts [].methods.sort' |
> while read name ; do
>    echo == $name
>    ri Array."${name}" | cat
> done
> 
> Interestingly, a lot of methods didn't return anything via ri.  For example:
> 
> $ ri Array.methods
> Nothing known about Array.methods
> 
> Anyone have any suggestions on a "cleaner" way to discover methods and
> their docs?
> 

The first two things that come to mind are: www.ruby-doc.org, if you 
want online doc, or one of the many fine books about Ruby if you want 
dead-tree doc.

-- 
RMagick: http://rmagick.rubyforge.org/