How do you propagate an error in async/await in JavaScript?
Re-throw the error in the catch block: catch (err) { console.error(err); throw err; }. The caller can catch it with their own try/catch.
Verify This Answer
Cross-check this information using these trusted sources:
More FAQs in async/await Error Handling Best Practices in JavaScript
Use try/catch around the await calls. If any await rejects, the catch block runs with the rejection reason. try/catch also catches thrown errors inside the try block.
Assign a fallback value in the catch block, then continue: try { data = await fetch(); } catch { data = fallback; } render(data);. The function continues with the fallback.
Yes. catch {} with no logging or handling hides bugs. At minimum, log the error: catch (err) { console.error(err); }. Silent failures make debugging very hard.
Still have questions?
Browse all our FAQs or reach out to our support team