From: Gary Wright <gwtmp01@...>
Date: 2010-01-28T08:45:10+09:00
Subject: Re: Class with Multi Constrcutor ( initialize )


On Jan 27, 2010, at 4:14 PM, Albert Schlef wrote:

> Robert Klemme wrote:
>> A solution like this was proposed for overloading once but it does not
>> seem to be widely used:
>> 
>> irb(main):001:0> def overload(*a)
>> irb(main):002:1> case a.map {|x|x.class}
>> irb(main):003:2> when [String]
>> irb(main):004:2> puts "a single string"
>> irb(main):005:2> when [Fixnum, String]
> 
> Cool. Where is "Array#===" documented? I couldn't find it.

Unfortunately Array#=== is just the same as Array#==, which is
why the argument list is mapped to class objects via #map in that
example from Robert.

There was a somewhat recent thread about changing Array#=== to
be an element-wise application of ===, which makes a lot of
sense to me.

Gary Wright