Promise.all

(async () => {
  const promiseA = new Promise((resolve, reject) => {
    setTimeout(() => {
        resolve({data: 'dataA', error: 'errorA'});
    }, 2000);
  })

  const promiseB = new Promise((resolve, reject) => {
    setTimeout(() => {
        resolve({data: 'dataB', error: 'errorB'});
    }, 2000);
  });

  const result = await Promise.all([promiseA, promiseB]);
  
  console.log(result);
})();