From: "Peña, Botp" <botp@...>
Date: 2007-05-03T21:25:19+09:00
Subject: Re: array slicing

from: Josselin [mailto:josselin@wanadoo.fr] :
#  anArray.sort {|a,b| a[1] <=> b[1]}
# sorts only on first value... how can I sort on both.. ?

try sort_by

irb(main):020:0> a=[["a", 3, 3], ["c", 1, 5], ["b", 1, 2],["d",3,1]]
=> [["a", 3, 3], ["c", 1, 5], ["b", 1, 2], ["d", 3, 1]]
irb(main):021:0> a.sort_by {|x| [x[1],x[2]]}
=> [["b", 1, 2], ["c", 1, 5], ["d", 3, 1], ["a", 3, 3]]