es6 cyclic dependency add.js

es6-add.js

import { subtractfn, countSubtract } from './subtract';

export var countAdd = 0;

export function add(n = 0) {
  countAdd++;
  console.log('countAdd', countAdd);

  countSubtract++;
  console.log('countSubtract from add file', countSubtract);

  if (n < 20) return subtractfn(n + 1);
}

subtractfn(countAdd);