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cfcosta/gist:3903239

Created October 17, 2012 01:35
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gistfile1.txt
>> x = 1,2,3
=> [1, 2, 3]
>> x.object_id
=> 70290220560040
>> x.delete_if { |y| y > 1 }
=> [1]
>> x.object_id
=> 70290220560040
>> x
=> [1]
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