sanderDijkxhoorn

# A simple implementation of character-based filtering in Ruby, covering different edge cases and use scenarios.
def filter_array(input)
  # Filter array for numbers
  num_array = input.select { |item| item =~ /\d/ }

  # Filter array for capitals
  capital_array = input.select do |item|
    item =~ /^[A-Z]+$/ ? true : false
  end.compact