The answer
It waits for all promises to settle (fulfilled or rejected) and returns an array of { status, value/reason } objects. It never rejects. Use it for partial success when you want all results regardless of failures.
Promise.allSettled: Examples and Use Cases in JavaScript
What does Promise.allSettled do in JavaScript?
More FAQs in Promise.allSettled: Examples and Use Cases in JavaScript
Promise.all rejects if any promise rejects (fast fail) and returns an array of values. Promise.allSettled waits for all promises, never rejects, and returns an array of { status, value/reason } objects.
No. Promise.allSettled always fulfills. It returns an array of result objects, each with a status of 'fulfilled' or 'rejected'. This is why it is useful for partial success scenarios.
{ status: 'fulfilled', value: ... } for fulfilled promises, or { status: 'rejected', reason: ... } for rejected promises. Check r.status to determine which, then access r.value or r.reason.
Still have questions?
Browse all our FAQs or reach out to our support team
Want to upskill yourself?
Your learning library
Small steps. Big possibilities.
Find your next course. Build something great.