Created
May 4, 2015 16:01
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Rubyの array.map(&:to_s) 記法を紐解く ref: http://qiita.com/kenzan100/items/6344766167299b9f7e91
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| Proc.new do |elem| | |
| elem.send(:to_s) | |
| end |
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| array = [1,2,3] | |
| array.map(&:to_s) | |
| # => ["1", "2", "3"] |
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