From: Mike Stok <mike@...>
Date: 2006-03-23T13:08:14+09:00
Subject: Re: what on earth..


On 22-Mar-06, at 10:44 PM, Timothy Bennett wrote:

> Ok, this is off the original track of discussion a bit, but I  
> wanted to bring this up.
>
> irb(main):007:0> 5 === Fixnum
> => false
> irb(main):008:0> Fixnum === 5
> => true
>
> irb(main):001:0> 5.class === Class
> => false
> irb(main):002:0> Class === 5.class
> => true
>
> I understand why this is happening (I think).  I just think this  
> needs to be fixed.  Or is there a reason why === should not be  
> commutative?

I think of it more as a relationship which has "direction", so in my  
view there's nothing to be fixed.  In the class comparison it's  
testing whether the class of the operand is the same as _or an  
ancestor of_ the receiver.  So it's not plain same as. (wording taken  
from the Pickaxe book)

Mike

-- 

Mike Stok <mike@stok.ca>
http://www.stok.ca/~mike/

The "`Stok' disclaimers" apply.