export to text file??

[Xiandy]

I have a code to export text file but in RPG Maker VX ACE.

module Kernel
def create_DNI(actor_id, variable)
name = $game_party.members[actor_id].name
f = File.new("DNI.txt", "a") # Define en nombre del archivo
f << "Nombre: #{name}\n" # Escribe el nombre del autor
f << "ID: #{$game_variables[3]}\n" # Escribe la variable
f.close
end
end

that script export to text file, DNI and character name.

on RPG Maker VX ACE, calls script: create_DNI(actor_id, variable)

example: http://postimg.org/image/yp3i7f6rv/

I need this same code but in "Javascript" in rpg maker mv.

any help? thank you.