Install

npm install dismatch

pnpm add dismatch

yarn add dismatch

bun add dismatch

Requirements

• TypeScript 5.x — dismatch leans on modern conditional and template literal types for handler inference.
• ESM or CommonJS — both are exported. The package is sideEffects: false so any modern bundler will tree-shake unused functions.
• Zero runtime dependencies.

Subpath imports

dismatch ships three import paths so async and remote-data code only land in your bundle when you ask for them:

import { match, createUnion, createPipeHandlers } from "dismatch";
import { matchAsync, foldAsync } from "dismatch/async";
import { RemoteData } from "dismatch/remote-data";

A project that only uses match and is ships well under 1 kB.

Next step

Continue to the Quick Start for a tour of the main APIs in five short steps.