From: Kev Jackson <kevin.jackson@...>
Date: 2005-10-04T14:16:03+09:00
Subject: Re: Odd hash behaviour

Vance A Heron wrote:

>Kev,
>Seems to work for me ...
>$ irb
>irb(main):001:0> @min_pks = Hash.new()
>=> {}
>irb(main):002:0> key = 'MID'
>=> "MID"
>irb(main):003:0> @min_pks[key] = 1 unless @min_pks.has_key?(key)
>=> 1
>irb(main):004:0> @min_pks[key] = 2 unless @min_pks.has_key?(key)
>=> nil
>irb(main):005:0> p @min_pks
>{"MID"=>1}
>=> nil
>
>Could you give the rest of your code and possibly some sample
>data?
>  
>
Actually it was working, but when printing out the values, it prints 
everything (ie including things that shouldn't have been in the Hash).  
I figured it all out in the end, my logic was a little twisted and the 
print was always executing (hence my confusion), the Hash was behaving 
perfectly.

As for the Set using

require 'Set'

That's the problem with not having docs for 1.8.2, the only docs I have 
cover 1.6 (and not too much of that).  Suppose I'll have to get Pickaxe 2 :)

Kev