Installation

Package managers

pnpm

pnpm add @nlozgachev/pipelined

npm

npm install @nlozgachev/pipelined

yarn

yarn add @nlozgachev/pipelined

bun

bun add @nlozgachev/pipelined

Imports

The library is split into four entry points. Import only what you need:

import { Maybe, Result, Task } from "@nlozgachev/pipelined/core";
import { Arr, Str } from "@nlozgachev/pipelined/utils";
import { pipe, flow } from "@nlozgachev/pipelined/composition";
import { Brand } from "@nlozgachev/pipelined/types";

Entry point	Contains
@nlozgachev/pipelined/core	Maybe, Result, Validation, Task, TaskResult, TaskMaybe, TaskValidation, These, Tuple, RemoteData, Deferred, Lens, Optional, Reader, State, Logged, Predicate, Refinement
@nlozgachev/pipelined/utils	Arr, Rec, Num, Str, Dict, Uniq
@nlozgachev/pipelined/composition	pipe, flow, compose, curry, tap, memoize, and other function utilities
@nlozgachev/pipelined/types	Brand, NonEmptyList

Requirements

• Node.js 22 or later (for npm/pnpm/yarn/bun installs)
• TypeScript 5.4 or later with strict mode enabled

Strict mode is required for the type-level guarantees — particularly exhaustiveness checking in match branches and narrowing in type guards — to work correctly.