From: nobu@...
Date: 2006-08-18T00:08:29+09:00
Subject: Re: [Facets] Multiple arguments for Hash#delete

Hi,

At Thu, 17 Aug 2006 23:40:18 +0900,
Daniel Schierbeck wrote in [ruby-talk:208980]:
> >> Probably somewhat slower, but hey, it lets you do this
> >>
> >>    a, b, c = hsh.delete :a, :b, :c
> > 
> > What will be returned from `hsh.delete :a'?
> 
> The value of :a
> 
>    hsh = {:a => 1, :b => 2, :c => 3}
>    hsh.delete :a, :b  #=> [1, 2]
>    hsh.delete :c      #=> 3

The class of returned value varies according to the number of
arguments?

> that way, you can do this
> 
>    a    = hsh.delete :a
>    b, c = hsh.delete :b, :c

     a = [:b, :c]
     b = hsh.delete(*a)

might be confusing, IMHO.

-- 
Nobu Nakada