#memory-leaks

Detect and prevent memory leaks. Techniques: 1. Use browser DevTools memory profiler. 2. Heap snapshots comparison. 3. Clear event listeners on cleanup. 4. Unsubscribe from observables. 5. Clear timers and intervals. 6. Weak references for caches. 7. Avoid global variables accumulation. 8. Monitor production with tools like Sentry. Common causes: closures, forgotten subscriptions, detached DOM. Implement cleanup in useEffect/componentWillUnmount.