How does async await relate to Promises?
PICTURE THIS: JAVASCRIPT EVENT LOOP
Simple meaning
Async functions always return a Promise.
WHY — JavaScript instead of guessing?
Why interviewers care about JavaScript:
question about JavaScript.
trade-offs, and what you would actually do on a Frontend project - not buzzwords.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1Async functions always return
a Promise.
- 2Await pauses that function
until the Promise settles, so the code reads top to bottom.
- 3Errors become try catch
instead of a long catch chain, but the event loop is still non-blocking.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
Async functions always return a Promise. Await pauses that function until the Promise settles, so the code reads top to bottom.