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How does `async/await` work and what are its benefits?

Q: How does `async/await` work and what are its benefits?

**TL;DR.** async/await is **syntactic sugar over Promises**. An async function always returns a Promise; await pauses the function until the awaited Promise settles, then resumes with its value — letting you write asynchronous code that **reads top-to-bottom** with ordinary try/catch for errors. run until await await yield to loop <path class='d-edge-dashed' d='M289 80 H332' marker-end='ur

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async/awaitpromisesasynchronousreadability

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Sequential vs concurrent awaits

// ❌ serial: each await waits for the previous (3x slower)
async function slow(ids) {
  const out = [];
  for (const id of ids) out.push(await getUser(id));
  return out;
}

// ✅ concurrent: kick off all, await together
async function fast(ids) {
  return Promise.all(ids.map(getUser));
}

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