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Languages & runtimes · #nodejs
Learn how PM2’s cluster mode spreads Node.js workloads across CPU cores, verifies load‑balancing, and handles zero‑downtime reloads—plus the memory and state limits you must watch.
Learn how to use nodemon’s ignore feature to prevent unnecessary restarts on logs, assets, or generated code, with configuration examples, verification steps, and failure‑mode analysis.
Glitch’s remix‑instant‑deploy model is still useful, but after its 2025 hosting shutdown you should copy the pattern to a GitHub template repo plus a deploy button on Render, Fly.io, or Vercel.
Node's event loop can freeze during CPU-intensive work. Worker Threads (stable since v12) let you offload that work to parallel threads, keeping the main loop responsive.
Learn how to architect an Express.js middleware pipeline to separate cross-cutting concerns from business logic, establish trust boundaries, and avoid common pitfalls like hanging requests.
Learn how to use Fastify's JSON Schema validation and serialization to eliminate boilerplate error handling and optimize response performance via pre-compiled schemas.
Learn how to configure a Travis CI build matrix for multiple language versions and environment variables, with a worked example, limits, and verification steps.
Learn how to pick the right pnpm hoisting mode for your Node.js project, compare disk usage and compatibility, and apply the setting with verification steps.
Learn how to diagnose and resolve empty results from Mongoose .populate() calls, with concrete checks, example code, and escalation steps.
pm2
nodemon
glitch
express
fastify
pnpm
mongoose