From: nobu.nokada@...
Date: 2004-02-05T10:00:26+09:00
Subject: Re: case with multiple expressions

Hi,

At Thu, 5 Feb 2004 09:31:27 +0900,
Yukihiro Matsumoto wrote in [ruby-talk:91585]:
> |Is there anything wrong with this kind of solution?
> |
> |   case [x,y,z]
> |     when [1,2,3] then #...
> |     when [1,2,4] then #...
> |     when [2,2,3] then #...
> |     else ...
> |   end
> 
> Hmm, if we define Array#=== as
> 
>   def ===(other)
>     self.all?{|item| item === other}
>   end

Shouldn't it be:

  index = -1
  other.each_with_index do |item, index|
    unless self.fetch(index) {return false} === item
      return false
    end
  end
  return self.size == index + 1

-- 
Nobu Nakada