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tsyber1an/paticular_unique.rb

Created April 29, 2013 12:49
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paticular unique
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paticular_unique.rb
[[['a', 1], ['b',2], ['c',3]], [['b',2],['a',1],['c',3]], [['c',1], ['a',4], ['b',2]]].uniq{|e| e.sort_by{|l| l.first }.map{|l| l.first }.join('') }
# => [[["a", 1], ["b", 2], ["c", 3]]]
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