JavaScript Promises Quiz

Review

1. Which pair are the settled Promise states?

   Fulfilled and rejected are the two settled states.
2. What runs synchronously during Promise construction?

   The constructor invokes its executor during construction.
3. What can Promise resolution do with another Promise?

   Resolution adopts another Promise or thenable.
4. What does a normal value returned by then do?

   The returned Promise fulfills with that value.
5. What does a throw inside a then handler do?

   Thrown exceptions become rejection outcomes for the returned chain.
6. What does a normally completing finally do?

   A normal finally completion lets the original outcome continue.
7. What does Promise.all preserve?

   Fulfillment values are ordered by input iteration order.
8. When does allSettled fulfill?

   allSettled waits for all inputs and reports every outcome.
9. What determines Promise.race?

   race settles from the first input to settle, either way.
10. When does Promise.any reject?

    any rejects with AggregateError only after all inputs reject.
11. What does Promise.withResolvers provide?

    It returns promise, resolve, and reject.
12. What does Promise.try normalize?

    It captures a callback return or throw as a Promise outcome.