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Languages & runtimes · #nodejs
Learn when and how to enable Mocha’s --parallel flag, what isolation guarantees it provides, and how to verify it works without introducing flaky tests.
Railway’s Buildpacks let you deploy Node.js, Python, Ruby, and more without a Dockerfile. Learn how they auto‑detect frameworks, speed up CI/CD, and what to watch for when your project is non‑standard.
Passport's local strategy leaves two decisions to you: what the verify callback returns and what goes into the session. Get both right—id-only serialization, single-purpose verify—and the rest is just routes.
Nodemon's defaults cause restart loops and thrashing in real projects. Here's how watch, ignore, delay, and execMap in nodemon.json fix that — plus how to verify the config actually behaves.
Use Moleculer’s Cache Service to cut database load. Enable Redis caching, set TTLs, invalidate on updates, and monitor hits/misses. A practical guide with code, trade‑offs, and an actionable checklist.
Why committing package-lock.json and building with npm ci is one of the highest-leverage decisions in a JavaScript repo — and where npm install still belongs.
Learn how to use FeathersJS service hooks to centralize request logging and validation without bloating your service methods.
Learn why async route handlers can leave requests hanging and how a simple wrapper or try/catch plus proper error‑middleware placement keeps your API reliable.
Cluster mode scales a stateless Node.js app across CPU cores with zero-downtime reloads; fork mode keeps in-process state safe. A decision table, ecosystem.config.js for both, and validation steps.
mocha
railway
express
redis
moleculer
feathersjs
pm2