maths_example_abcdef/lib/simple_maths.js

un exemple ce création de package

var call_counter = require('/call_counter');
function add(x,y){
  call_counter();
  return x+y;
}

function substract(x,y){
  call_counter();
  return x-y;
}

module.exports = {
  addition:add,
  soustraction:substract
}