About Us

About Code-JS

Practical, code-first tutorials for working engineers — covering JavaScript, TypeScript, Angular, RxJS, and the AI & Model Context Protocol layer powering 2026.

What you’ll find here

Every article is written for engineers who already ship code and want to go deeper. No fluff, no padding — runnable examples, real-world patterns, the gotchas that trip up production code, and the upgrades that actually move the needle.

The site is split into five focused tracks:

  • AI & MCP — building with Anthropic’s Model Context Protocol and the open-protocol layer.
  • JavaScript — modern language features, runtime gotchas, browser APIs.
  • Angular — Angular 21 / 22, patterns, performance, the features that matter in real apps.
  • TypeScript — type-safe patterns and everyday techniques that pay for themselves.
  • RxJS — observables, operators, reactive patterns that scale.

The JavaScript tutorial

Beyond articles, the JavaScript tutorial is a structured 57-lesson curriculum across 11 modules — from variables and operators to service workers, WebAssembly, and modern browser APIs. Designed to be read straight through, or dipped into for a specific topic.

Get in touch

The best place to start a conversation is on any article itself — drop a comment at the bottom of the post and I’ll reply. For broader discussion, browse all articles or pick a topic to start.