Node.js

1. Node.js runtime fundamentals

   The V8 engine, runtime vs browser differences, and the single-threaded model.

2. Blocking vs non-blocking and the event loop

   Event loop phases, timers, I/O callbacks, blocking vs non-blocking, and keeping the event loop responsive.

3. Async patterns: callbacks, promises, timers

   Callbacks, promises, async/await, flow control, setTimeout, setImmediate and process.nextTick.

4. Event emitter

   EventEmitter, listeners, emit, once and error events.

5. File system and paths

   Reading and writing files, file descriptors, stats, folders, path module and fs promises.

6. Streams and backpressure

   Readable, writable, duplex and transform streams, piping, pipeline and backpressure.

7. Modules: CommonJS and ES modules

   require vs import, package.json type, exports, resolution, and interop between CJS and ESM.

8. Worker threads and concurrency

   Worker threads, cluster, child processes, and CPU-bound parallelism.

9. Child processes and cluster

   Spawning child processes, exec, fork, IPC messaging, and scaling across cores with cluster.

10. HTTP server and requests

    Anatomy of an HTTP transaction, request and response objects, and using fetch.

11. Command line, process and environment

    Running scripts, process.argv, environment variables, REPL, and CLI input and output.

12. TypeScript in Node.js

    Running TypeScript natively with type stripping, transpilation, and runners.

13. Built-in test runner

    node:test, describe and it, mocking, and code coverage.

14. Debugging, profiling and memory

    Inspector, heap snapshots, garbage collection tracing, flame graphs, and performance diagnosis.

15. Security and production practices

    Security best practices, development vs production differences, and dependency risks.

16. Node-API and native addons

    Native addons using Node-API, ABI stability, and thread-safe functions.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

Source: endoflife.date

• Material UI
• MobX
• Mocha
• Mongoose
• NestJS
• Next.js
• NumPy
• Nuxt
• Nx
• pandas
• Phoenix
• Playwright