Node.js
Event loop · streams · clusters · perf
What this skill is about
Event loop · streams · clusters · perf
Topics we drill
- Event loop phases
- Streams (Readable/Writable/Transform)
- Cluster + worker_threads
- Memory leaks + heap snapshots
- Native addons + N-API
Why this matters at interviews
Real interviewers don’t just check if you know the syntax — they probe whether you’ve used the concept under production pressure. Our drills mirror that. Adaptive difficulty, named anti-patterns called out as you go, and a senior-staff voice that teaches the production vocabulary rather than dumbing it down.