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BrianPurgert/unnest_integer_arrays.rb

Last active December 5, 2018 03:11
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flatten an array of arbitrarily nested arrays of integers into a flat array of integers
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unnest_integer_arrays.rb
# flattens arbitrarily nested arrays of integers into a flat array of integers.
#
# Examples:
#
# flatten_integer_arrays([[1, 2, 3], [4, 5, 6, [7, 8]], 9, 10])
# # [1,2,3,4,5,6,7,8,9,10]
#
def flatten_integer_arrays(nested)
nested.to_s.scan(/\d+/).map(&:to_i)
end
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