From: "Peña, Botp" <botp@...>
Date: 2008-07-03T12:44:59+09:00
Subject: Re: thoughts on a more generic Array#partition function

From: Rudi Cilibrasi [mailto:cilibrar@gmail.com] 
# Subject: thoughts on a more generic Array#partition function
# ....
# puts "\nSpecial (new extension) three-way list split"
# testpart(a) { |i| i % 3 }

how does it compare to #group_by

> RUBY_VERSION
=> "1.9.0"
> a = [ 1, 2, 3, 4, 7, 9, 11, 12, 13, 14 ]
=> [1, 2, 3, 4, 7, 9, 11, 12, 13, 14]
> a.group_by { |i| i % 3 }
=> {1=>[1, 4, 7, 13], 2=>[2, 11, 14], 0=>[3, 9, 12]}


> RUBY_VERSION
=> "1.8.7"
> a = [ 1, 2, 3, 4, 7, 9, 11, 12, 13, 14 ]
=> [1, 2, 3, 4, 7, 9, 11, 12, 13, 14]
> a.group_by { |i| i % 3 }
=> {0=>[3, 9, 12], 1=>[1, 4, 7, 13], 2=>[2, 11, 14]}

kind regards -botp