@mantaq/utils

Zero-dependency utility library for the mantaq actor system.

Either

An Either<L, R> is a plain 2-tuple: left is [value, undefined], right is [undefined, value]. Exactly one slot is populated.

import { Either } from "@mantaq/utils";

const err = Either.left(new Error("boom"));
const ok = Either.right({ done: true });

Either.isRight(ok); // true
Either.getRight(ok); // { done: true }
Either.map(ok, (v) => v.done); // [undefined, true]

Errors flow as values — no exceptions.