promisifiedReadlineQuestion.js

// https://stackoverflow.com/a/54761452/3446870

const {promisify} = require('util');
const readline = require('readline');

async function readlineQuestion(question) {
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
  });
  rl.question[promisify.custom] = (question) => {
    return new Promise((resolve) => {
      rl.question(question, resolve);
    })
  };
  const answer = await promisify(rl.question)(question);
  rl.close();
  return answer;
}

(async function () {
  const answer = await readlineQuestion("What is the capital of Assyria?");
})();