function fakeAsyncCall(resultText = 'foo data') {
  return new Promise((resolve, reject) => {
      if (typeof resultText !== 'string') {
        return reject('result text should equal string');
      }
    setTimeout(() => { resolve(resultText) }, 1000);
  });
}

async function getData() {
  try {
    const f1 = await fakeAsyncCall();
    const f2 = await fakeAsyncCall();
    const f3 = await fakeAsyncCall();
    const f4 = await fakeAsyncCall(2);

    console.log(f1, f2, f3, f4); // 'foo data' x 4

  } catch (error) {
    console.error(`Uh oh: ${error}`);
  }
}