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tagrudev/gist:3859126

Created October 9, 2012 14:20
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gistfile1.rb
1.9.3-p194 :001 > a = [1, 2, 3, 4]
=> [1, 2, 3, 4]
1.9.3-p194 :002 > a.last
=> 4
1.9.3-p194 :003 >
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