From: Gavin Sinclair <gsinclair@...>
Date: 2004-04-16T22:04:00+09:00
Subject: Re: Hash, ==,  key-value comparison

On Friday, April 16, 2004, 1:24:12 PM, Ara.T.Howard wrote:

> On Fri, 16 Apr 2004, Yukihiro Matsumoto wrote:

>> |* Change '==' method to compare only key-value pairs.
>> |* Add Hash#=== method to act like current Hash#==
>> 
>> They are possible options, along with
>> 
>> * add new method (e.g. content_equal?) for membership equality.
>> 
>> I'm not sure which one is the best way to go.

> s/content_equal/equiv/ ?

My turn:

 * Hash#== compares only the data
 * Hash#equiv? compares the data and the proc
 * Hash#=== is alias for Hash#key?

The first two I think are matters of importance; the third one is just
a nice idea.  There are probably other, equally good, ideas for
Hash#===.

Cheers,
Gavin