const VK = require('vk-io');

const arr = [
  ['login', 'pass'],
  ['login', 'pass']
]
const user = [];

for (let i = 0; i < arr.length; i++) {
  const phone = arr[i][0];
  const pass = arr[i][1];
  user[i] = new VK({
    phone: phone,
    pass: pass
  });
  user[i].auth.iphone().run()
    .then((account) => {
      user[i].setToken(account.token);
      console.log(account.token);
    })
    .catch((err) => {
      console.error(err);
    });
}