get_file_names.rb

# Before 
def get_file_names path
  file_names = []
  Dir.glob(path).each do |file|
    file_names << File.basename(file) if File::ftype(file) == "file"
  end
  return file_names
end

# After Refactoring
def get_file_names path
  [].tap do |file_names|
    Dir.glob(path).each do |file|
      file_names << File.basename(file) if File::ftype(file) == 'file'
    end
  end
end