From: Trans <transfire@...>
Date: 2009-02-13T09:09:18+09:00
Subject: Re: Array#to_hash



On Feb 12, 2:08 am, "William James" <w_a_x_...@yahoo.com> wrote:

> a = [:a,:b,:c]
>     ==>[:a, :b, :c]
> h = a.to_hash
>     ==>{0=>:a, 1=>:b, 2=>:c}
> a[2]
>     ==>:c
> h[2]
>     ==>:c
>
> Wow!  That *is* a big improvement!

Ha ha. Very funny. It may seem silly,  but "identity principles" often
do. You know like, a + 0 = a. How useful does that seem? But it is.

In this, you might want to do something like:

  a = [:a,:b,:c]
  h = a.to_hash
  h[0.5] = :x
  h[1.5] = :y
  h[2.5] = :z
  # ... etc ...
  a = h.sort.map{|k,v|v}

T.