tiny-pattern-ts

Pattern matching for TypeScript/ESM environments (F#-style, not regex).

Development

• Build: npm run build
• Test: npm run test, npm run test:ci
• Checks: npm run check, npm run fix
• Format/Fix: npm run fix:oxfmt, npm run fix:oxlint

Tooling

• TypeScript 7 — type checker and build (tsc).
• node --test + --experimental-strip-types — test runner (Node 22.6+, flag dropped on Node 24).
• c8 — code coverage for test:ci.
• oxlint — Rust-based linter.
• oxfmt — Rust-based formatter (Prettier-compatible). Formats JS/TS, JSON/JSONC, YAML, Markdown, MDX, and more; built-in package.json key sorting replaces sort-package-json.
• cspell — spell checking.
• lefthook — git pre-commit hooks.

Requirements

• Node.js >= 22.6 (>= 24 recommended; --experimental-strip-types is unflagged on 24).

VSCode integration

• Recommended extensions: see .vscode/extensions.json (oxc, cspell).
• TypeScript 7 is used via the typescriptteam.native-preview extension.
• oxc extension provides oxlint squiggles and oxfmt format-on-save.

Workflows

• Version updates via npm version.
• Publishing via GitHub Actions on tagged commits (see .github/workflows/ci.yml).

Contribution guidelines

• Commit signing (GPG).
• Set up commit message template: npm run use:git-commit-message.
• See commit-message-template.
• Type-only tests use expect-type's expectTypeOf(...) inside node --test cases.