Queuing the promise!

queue_promises

const queue = (() => {
  const promises = {};
  return async (name, f) => {
    while(promises[name]) await promises[name];
    promises[name] = f();
    const res = await promises[name];
    promises[name] = undefined;
    return res;
  };
})();

queue('prompt', () => prompt_for_user());
queue('prompt', () => prompt_for_user());
queue('prompt', () => prompt_for_user());

// this allow us to prompt the questions one by one