Cheatsheets · TypeScript & curl

Two standalone pocket references. Independent of each other and of the JS event-loop series. Pick one — there's no reading order.

▸ About these cheatsheets

Two unrelated quick-references that happen to share the Rose Pine theme:

  • TypeScript 6.0 — 23 sections from primitives through 5.x → 6.0 language features. Every section heading links to the corresponding chapter of the TypeScript Handbook; the "What's new" card has per-version links to each release-notes page (5.0 → 6.0). Verified live against npm at write time.
  • curl — 16 sections of HTTP-stack recipes covering methods, headers, body forms, auth (Basic / Bearer / Digest / NTLM / SigV4 / .netrc), TLS / mTLS, proxies, retries & timing, cookies & sessions, parallel transfers, and non-HTTP protocols (FTP, SMTP, IMAP, WebSocket, MQTT).

Design principle

Surface-level reference material is everywhere. What's harder to find is reference material that also answers why — why is this option deprecated, what trap does this flag avoid. Each cheatsheet pairs a high-density quick-scan layout with inline notes, warnings, and links to canonical specs.

Mechanics

Both pages are fully responsive (1 / 2 / 3 columns by viewport), with a sticky table-of-contents bar on desktop and a hamburger drawer on mobile. They share styles.css + app.js (sibling files in this folder) — no build step, no framework, no dependencies. Print works fine too.

TS TypeScript 6.0 cheatsheet

23-section reference for modern TypeScript, with the version verified live from npm. Every section heading links directly to the corresponding chapter of the TypeScript Handbook.

  • Primitives, objects, arrays, tuples, functions, generics, classes, modules
  • Type vs interface comparison table
  • Discriminated unions, conditional types, mapped types, template literal types
  • All 20+ built-in utility types tabulated (Partial, Pick, Omit, ReturnType, NoInfer, …)
  • using resource management, stage-3 decorators, async / Promise types
  • Strict tsconfig family + a Node 24 / TS 6 baseline config
  • Version-by-version changelog with 5.0+ / 5.2+ / 5.5+ feature tags inline, each linking to that release's notes page
Open cheatsheet →

curl curl cheatsheet

Comprehensive recipes for the URL-transfer swiss-army-knife — 16 sections covering everything from "show only response headers" to "send mail over SMTP+TLS." Every flag carries a brief inline comment so you don't need a second tab open.

  • HTTP methods, headers (send / remove / override), body forms (JSON, urlencoded, multipart)
  • Auth: Basic, Bearer, Digest, NTLM, Negotiate, AWS SigV4, .netrc
  • TLS, mTLS, custom CA bundles, pinning, version pinning
  • Proxies (HTTP / HTTPS / SOCKS5), --resolve, --connect-to, Unix sockets
  • Retries, timeouts, -w timing variables, full timing breakdown recipe
  • Cookies, sessions, parallel transfers (-Z), URL globbing
  • Non-HTTP protocols: FTP, SFTP, SMTP, IMAP, WebSocket, MQTT, LDAP
  • Recipes: token-aware calls, health checks, OAuth2, GitHub API, TLS keylog capture
Open cheatsheet →

▸ How it's built

node-ts-test/
└── cheatsheets/
    ├── cheatsheets-index.html  ← you are here
    ├── typescript-cheatsheet.html
    ├── curl-cheatsheet.html
    ├── styles.css              ← shared Rose Pine, responsive grid, burger menu
    └── app.js                  ← shared drawer toggle
  • Each cheatsheet links styles.css and app.js (same directory)
  • Only file-specific syntax-token colours stay inline (TS uses gold / iris / foam; curl uses love / gold / foam — overlapping class names so they have to remain per-file)
  • Responsive 1 / 2 / 3-col grid driven by @media at 760 px and 1200 px
  • max-width: min(2400px, 96vw) lets cards fill ultrawide monitors without absurd line lengths
  • Mobile (< 760 px) gets a hamburger drawer with full ARIA states, scroll lock, Escape-to-close, viewport-resize auto-dismiss

▸ Further reading — TypeScript

  • TypeScript Handbook typescriptlang.org The canonical learning resource. Start at Everyday Types if you're new; the cheatsheet links to specific chapters from every section heading.
  • TypeScript release notes index typescriptlang.org Every version's changelog. The cheatsheet's "What's new" section links to 5.0 → 6.0 individually.
  • tsconfig reference typescriptlang.org Every compiler option, searchable. The single most useful TS page in daily work.
  • Utility types reference typescriptlang.org Every built-in: Partial, Pick, Omit, ReturnType, NoInfer, …
  • TypeScript on GitHub github.com The compiler's source, issue tracker, and wiki — including the "What's new" page that often gets updated before the handbook does.

▸ Further reading — curl

  • curl manpage (online) curl.se Every flag, every option, every example. The cheatsheet covers the 95 % you'll reach for; the manpage covers the rest.
  • curl documentation hub curl.se Tutorials, tooling docs (libcurl, curl-config), security notes, and the everything-curl book.
  • Everything curl — the book curl.dev Free, online, comprehensive. Hundreds of pages on how curl and libcurl work. By Daniel Stenberg himself.
  • Local: man curl terminal Always available, even offline. The cheatsheet is a useful 30-second scan layer on top.

▸ Tools & sandboxes

  • TypeScript Playground typescriptlang.org Browser sandbox for trying things out. Type inspection, error messages, and JS emit side-by-side. Quick-try anything from the TS cheatsheet without opening a project.
  • httpbin.org httpbin.org Endpoints that echo back your request — great for poking at the curl examples without standing up a server. /anything, /headers, /cookies, /delay/N, …
  • Reqbin reqbin.com Alternative request inspector / public test endpoints. Useful when httpbin is rate-limiting.

▸ Credits

  • Theme: Rose Pine — palette by Emilia Dunfelt & contributors. Used in its "Main" variant with the standard role mapping (love, gold, rose, pine, foam, iris).
  • Fonts: system UI sans for prose; JetBrains Mono / Fira Code / SF Mono / Menlo for code blocks.
  • Validation: each cheatsheet was checked with Python's html.parser for unclosed tags.
Looking for the JS event-loop deep-dives? They're in the event-loop series index — three sequential explainers on the call stack / microtask / macrotask interplay and migrating from .then chains to await.