From: Josef 'Jupp' Schugt <jupp@...>
Date: 2003-07-27T07:08:20+09:00
Subject: Re: Set doesn't have [] instance method

Saluton!

* Gavin Sinclair; 2003-07-26, 20:13 UTC:
> It should, shouldn't it?  It's meant to combine the fast lookup of
> Hash with the convenience of Array, yet the most important method Hash
> and Array have in common, Set lacks!
> 
> $ irb
> irb(main):001:0> require 'set'
> => true
> irb(main):002:0> s = Set[1,2,3]
> => #<Set: {1, 2, 3}>
> irb(main):003:0> s.include? 1
> => true
> irb(main):004:0> s[1]
> NoMethodError: undefined method `[]' for #<Set: {1, 2, 3}>
>         from (irb):4
>         from :0

Ruby follows the principle of least surprise. Am I the only one to be
stupefied if '[]' would exist for a set?

Gis,

Josef 'Jupp' Schugt
-- 
N'attribuez jamais � la malice ce que l'incomp�tence explique !
-- Napol�on