Q67: What causes memory leaks in Node.js applications?
Common causes include uncleaned global variables, active timer closures (setInterval), uncleared event listeners, and growing caching objects held in memory.
Key Takeaways
- Retained object references prevent V8 garbage collection.
- Common sources: globals, forgotten event listeners, timers.
Knowledge Check
Which tool can inspect memory heap snapshots of a Node.js process?