Level 1: Dangling Event Listeners
The scroll event listener is never
detached when component unmounts, keeping the entire DOM subtree in memory!
window.addEventListener('scroll', handleScroll); // Component
unmounts without cleanup!
Select Code Patch to Reclaim
Memory:
V8 Heap Retainer Inspector
ROOT: Window (Global Scope)
128 B
↳ Detached HTMLDivElement (#heroBanner)
18.4 MB