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🚀 Release 0.3.0
2026-09-18 07:51:16 +00:00
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2026-09-18 07:51:16 +00:00

tiny-pattern-ts

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

Description

tiny-pattern-ts brings F#-style pattern matching to TypeScript. Patterns are ordinary objects whose matches method is a TypeScript type guard, so narrowing composes the way any other guard does. It is deliberately not a regex engine and not a macro: there is no transpiler and no DSL to learn, and the type-level contract is the feature — see development/library.md for the design decisions and the known limitations.

Requirements

  • Node.js >= 26 (engines field; pinned via .node-version).
  • TypeScript >= 5.0 to consume the published declarations. The emitted .d.ts use const type parameters (TS 5.0) and keep their relative .ts specifiers; both resolve on TS >= 5.0 in node10 / node16 / nodenext / bundler.
  • The package is ESM-only (no CommonJS shim).

API

Yet to be implemented

License

MIT © 2025 tmu. See LICENSE.

Contributing

Contributions are documented in CONTRIBUTING.md; the reasons behind the project's decisions, rejected alternatives, and known issues live in development/. AI coding agents start at AGENTS.md.

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0.9.0
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2026-09-29 23:57:54 +02:00
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