❗️Что будет на выходе:

async function asyncSumOfSquares() {
  const numbers = [2, 3, 4, 100];

  const result = await numbers.reduce(async (acc, num) => {
    const currentSquare = await Promise.resolve(num * num);
    return (await acc) + currentSquare;
  }, Promise.resolve(0));

  console.log(result);
}

asyncSumOfSquares();

Ответ:
10029

JavaScript test | #JavaScript