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toddseller/enum_example_1.rb

Created December 14, 2015 15:51
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Enumerable Method Example 1
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enum_example_1.rb
(0...15).group_by { |i| i % 3}
>> {0=>[0, 3, 6, 9, 12], 1=>[1, 4, 7, 10, 13], 2=>[2, 5, 8, 11, 14]}
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