How do you prevent race conditions in useEffect?

Updated May 6, 2026

Short answer

Use cleanup functions and abort controllers to cancel outdated requests.

Deep explanation

Race conditions occur when multiple async calls resolve out of order, causing stale UI updates.

Unlock with a Pro subscription to view this section.

View pricing

Real-world example

No real-world example available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Common mistakes

No common mistakes listed yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Follow-up questions

No follow-up questions available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

More React Hooks interview questions

View all →