Created
September 10, 2014 22:18
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proc block practice
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| [1] pry(main)> x = Proc.new {|i| puts i} | |
| => #<Proc:0x007fa46aa60188@(pry):1> | |
| [2] pry(main)> [1,2,3].map(&x) | |
| 1 | |
| 2 | |
| 3 | |
| => [nil, nil, nil] | |
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