From: Amir Ebrahimifard <amiref@...>
Date: 2010-08-04T01:58:08+09:00
Subject: Different between 2 code

Hi
Why 2 different sort in below code return different result ?
( I dont understand different between "v1 <=> v2" and  "v2 <=> v1" ).

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array = [3,1,5,2,4]
# => [3, 1, 5, 2, 4]

array.sort {|v1,v2| v1 <=> v2 }
# => [1, 2, 3, 4, 5]
array.sort {|v1,v2| v2 <=> v1 }
# => [5, 4, 3, 2, 1]
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