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hyfather/array_map.rb

Created October 24, 2011 13:06
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Demonstrates how :map can be used on class:Array
Raw
array_map.rb
[:a, :b, :c].map {|e| e.to_s }
#=> ['a', 'b', 'c'] # Invoke .to_s on each element and collect these in an array.
[:a, :b, :c].map(&:to_s)
#=> ['a', 'b', 'c'] # The same result obtained in a shorthand fashion.
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