Memory leaks in JavaScript don't announce themselves with an error. They show up as a heap that grows by 20MB per minute — invisible in a five-minute Lighthouse run, fatal in a six-hour production session. Why React apps leak: A useEffect that opens a WebSocket and never closes it on unmount. A setInterval without clearInterval in the cleanup return. A global Map that grows without bound. In each
I built a free, unlimited cloud storage app using Telegram's API TelStorage is live at https://telstorage.vercel.app/ — free forever, no sign-up required beyond your Telegram credentials. The Problem What I built Features All files go directly into the user's own Telegram account Challenges I faced Try it / Give feedback Live app and feedback form below — all responses are read personally. Feedbac
Random 30–50ms freezes with no obvious long tasks in the Performance panel often have one root cause: the garbage collector. V8 pauses JavaScript execution to reclaim memory, and if your allocation rate is high enough, those pauses happen frequently — creating jank that shows up as a sawtooth pattern in the memory timeline rather than a spike in the flame chart. What this covers: How V8's generati