https://twitter.com/wesbos/status/1098612223176511489

async-reduce.js

const ask = async (question) => Promise.resolve('Answer ' + question);

const questions = [1, 2, 3];

const answers = await questions.reduce(async (accumulator, nextQuestion) => {
  const allAnswers = await accumulator;
  const answer = await ask(nextQuestion);
  return Promise.resolve([...allAnswers, answer]);
}, Promise.resolve([]));

console.log(answers);