#ruby's #flat_map is much faster than combining #map and #flatten. #1830
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caboteria
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Nov 24, 2013
#ruby's #flat_map is much faster than combining #map and #flatten.
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According to http://gistflow.com/posts/578-use-flat_map-instead-of-map-flatten I modify CSVConverter.to_csv method for 3-5 % faster performance.