How to implement Promise.race() with async/await

Question

How can I implement Promise.race() method with async and await?

async function promiseRace(promises) {
  const results = [];
  for (const p of promises) {
    await p;
    results.push(p);
  }
  return results[0];
}

I've tried to implement it like above but this doesn't work.

Answer 1

You can't. Just like you cannot implement the Promise constructor using async/await. Remember that await is only syntactic sugar for then calls - and you cannot implement the basic promise combinators using only that.