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arman-h/flatten_array.rb

Created December 16, 2016 10:08
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Flatten an array with Ruby without using built-in methods
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flatten_array.rb
def recursively_flatten_an_array(nested_array, flattened_array = [])
nested_array.each do |obj|
unless obj.is_a? Array
flattened_array << obj
else
recursively_flatten_an_array(obj, flattened_array)
end
end
return flattened_array
end
puts recursively_flatten_an_array([[[1, 2, [3]], 4], 5])
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