From: "mame (Yusuke Endoh)" <mame@...>
Date: 2012-03-27T23:45:24+09:00
Subject: [ruby-core:43741] [ruby-trunk - Feature #5574][Assigned] Make arrays comparable


Issue #5574 has been updated by mame (Yusuke Endoh).

Status changed from Open to Assigned
Assignee set to matz (Yukihiro Matsumoto)


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Feature #5574: Make arrays comparable
https://bugs.ruby-lang.org/issues/5574#change-25248

Author: tokland (Arnau Sanchez)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: 
Target version: 


Why are arrays not comparable? _Array_ already defines _<=>_, so it seems only natural to mix-in the _Comparable_ module.

<pre>
> [1, 2] < [1, 1] 
NoMethodError: undefined method `<' for [1, 2]:Array

> Array.send(:include, Comparable)
> [1, 2] < [1, 1] 
=> false
</pre>

This was already discussed in the mailing list a while ago and people agreed it would be useful:

http://www.ruby-forum.com/topic/76535


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