Back to all skills
Progress13 of 45
ClientLow

Deduplicate Global Event Listeners

Use `useSWRSubscription()` to share global event listeners across component instances.

clientswrevent-listenerssubscription

Code Comparison

Incorrect (N instances = N listeners):tsx
Correct (N instances = 1 listener):tsx

Why This Matters

Impact: single listener for N components. This optimization is classified as LOW priority for production applications.