Complete TypeScript SDK reference for the Anthropic Claude API — install, messages.create, streaming, tool use, vision, types, and Node/Deno/Bun integration.
Apply ANSI colours, backgrounds, and text styles to terminal output in Node.js using Chalk's chainable API, plus comparisons with picocolors and patterns for building polished CLI UX.
Build full-featured Node.js CLIs with positional arguments, typed options, subcommands, auto-generated help, lifecycle hooks, and a distributable bin in package.json.
Load configuration and secrets from .env files into process.env at startup, with multi-environment files, variable expansion, schema validation, and Node 20.6+ built-in --env-file alternatives.
Fastify is a high-performance Node.js web framework with schema-driven validation, plugin encapsulation, hooks, decorators, and built-in Pino logging — covering routes, plugins, hooks, error handling, and production hardening.
Node.js file system module — the three APIs (callback, sync, promises), reading and writing files, directory operations, watchers, atomic writes, and path module pairing.
Node.js streams — Readable, Writable, Duplex, and Transform, the modern pipeline() API, backpressure, async iterators, Web Streams interop, and patterns for piping files, HTTP bodies, and gzip compression.
Schema-first ORM for Node.js with auto-generated typed client, declarative migrations, relations, transactions, and seeding — for PostgreSQL, MySQL, SQLite, MongoDB, and more.
Cheat sheets for Node.js modules from the npm registry — HTTP clients, validation, CLI builders, utility libraries, and more.
Compare ts-node, tsx, Node 22.6+ --experimental-strip-types, Bun, and Deno for running .ts files directly; pick the right tool, configure watch mode, and avoid the classic ESM / type-strip pitfalls.
Node.js runtime, package managers, async patterns, array methods, and frontend tooling — a complete JavaScript reference for the command line and the browser.
Install Node.js on Windows, macOS, and Linux using winget, Homebrew, apt, nvm, Volta, or fnm. Covers version managers, LTS vs current, and verifying your install.
CommonJS vs ES Modules in Node.js — syntax, how Node chooses the module system, dynamic import, top-level await, CJS/ESM interop, and common pitfalls.
How to use the Node.js runtime — REPL, running scripts, CLI flags, ESM vs CJS modules, built-in node: modules, the process object, and modern globals like fetch and structuredClone.
Complete npm reference — installing packages, scripts, workspaces, package.json anatomy, audit, publish, link, lockfiles, and registry configuration.
Run npm package binaries without global installs using npx. Covers resolution order, version pinning, --yes, --no-install, npm exec, scaffolders, and cache management.
Complete reference for the Node.js package manifest — name, version, scripts, dependencies, exports, workspaces, and the packageManager field for Corepack.
Fast, disk-efficient package manager using a content-addressable store and hard-links. Covers install, add, remove, scripts, dlx, exec, the pnpm store, and workspaces.
Yarn is a fast, deterministic package manager from Meta. Covers Yarn Classic (v1) vs Yarn Berry (v4), install, add, remove, workspaces, Plug'n'Play, and migration tips.
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