a function to flatten a nested array, if it contains nil, removes the nils, if its elements are all nil, return empty array. in ruby

main.rb
def flatten_array(array)
  # Return an empty array if all elements are nil
  return [] if array.all?(&:nil?)

  # Remove nil values from the array
  array.compact!

  # Recursively flatten nested arrays
  array.map! do |element|
    element.is_a?(Array) ? flatten_array(element) : element
  end.flatten
end
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main.rb
nested_array = [1, [2, [3, 4], nil, 5], nil, [nil, [6, nil], nil], []]
result = flatten_array(nested_array)
puts result.inspect
# Output: [1, 2, 3, 4, 5, 6]

empty_array = [[nil, nil], [nil, nil]]
result = flatten_array(empty_array)
puts result.inspect
# Output: []
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