From: David Alan Black <dblack@...>
Date: 2001-04-28T12:47:36+09:00
Subject: [ruby-talk:14365] Re: RCR: Array#insert

On Sat, 28 Apr 2001, TAKAHASHI Masayoshi wrote:

> Hi,
>
> Michael Neumann <neumann@s-direktnet.de> wrote:
> > class Array
> >   def insert(inx, obj)
> >     self[inx, 0] = obj
> >     self
> >   end
> > end
>
> Another candidate is:
>
> class Array
>   def insert(num, elem)
>     if elem.kind_of? Array
>       self[num, 0] = [elem]
>     else
>       self[num, 0] = elem
>     end
>     self
>   end
> end

...which I think could also be done as:

   class Array
     def insert(num, elem)
       self[num,0] = *[elem]
       self
     end
   end

I haven't benchmarked them, though.

(This thread is getting me thinking, in ways that I haven't formulated
yet (and won't tonight :-), about the relative status of language
features and just plain things written in Ruby code.  Actually I have
formulated some ideas along these lines in the past.  But I ... well,
first sleep, and then Ruby philosophizing :-)


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav