How Your Web App Is Leaking Memory via Closures

In this episode, Lucas and Luna dig into one of the most insidious performance bugs in modern web apps: memory leaks caused by JavaScript closures. They break down how closures work under the hood, why they can hold onto references long after you think they're gone, and real-world examples like React's useEffect and event listeners. You'll learn practical patterns to avoid accidental retention, how to use WeakMap and WeakRef, and why Chrome DevTools memory snapshots are your best friend. If you've ever seen a page slow down after a few minutes, this episode explains why and how to fix it for good. #JavaScript #Closures #MemoryLeak #WebPerformance #React #DevTools #Frontend #Backend #Technology #WebDevelopmentPodcast #Fexingo #FexingoBusiness #BusinessPodcast #Episode56 #MemoryManagement #ChromeDevTools #WeakRef #EventListeners Keep every episode free: buymeacoffee.com/fexingo