parameter_input_as_array.rb

def test(*arr)
  arr.each do |a|
    puts "a is #{a}, #{a.class}"
  end
end

test :title, :description, :image_url, presence: true

##################################################
# <===================OUTPUT===================> #
# a is title, Symbol                             #
# a is description, Symbol                       #
# a is image_url, Symbol                         #
# a is {:presence=>true}, Hash                   #
##################################################