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amitpatelx/gist:2763585

Created May 21, 2012 17:54
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Sort 2D array
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gistfile1.rb
1.9.3-p125 :007 > x=[["2010-01-10", 2], ["2010-01-09", 5], ["2009-12-11", 3], ["2009-12-12", 12], ["2009-12-13", 0]]
=> [["2010-01-10", 2], ["2010-01-09", 5], ["2009-12-11", 3], ["2009-12-12", 12], ["2009-12-13", 0]]
1.9.3-p125 :008 > x.sort_by{|k|k[1]}
=> [["2009-12-13", 0], ["2010-01-10", 2], ["2009-12-11", 3], ["2010-01-09", 5], ["2009-12-12", 12]]
1.9.3-p125 :009 > x.sort_by{|k|k[0]}
=> [["2009-12-11", 3], ["2009-12-12", 12], ["2009-12-13", 0], ["2010-01-09", 5], ["2010-01-10", 2]]
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