@neotype/prelude NPM

neotype_prelude

Functional programming essentials for TypeScript

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Documentation

Features

Tools for comparing values: use the contracts provided by the Eq and Ord interfaces to implement equivalence relations and total orders.
Tools for combining values: use the contract provided by the Semigroup interface to implement semigroups.
Algebraic data types:
- Model optional values with Maybe.
- Handle failures with Either.
- Validate forms and user input with Validation.
- Get creative with more types like Ior and Pair.
Generator comprehensions: chain computations together by writing imperative style code blocks using a coroutine syntax.
Async generator comprehensions: work with Promise values inside of generator comprehensions using async/await syntax.

Install

neotype_prelude is available on NPM.

npm install @neotype/prelude

Working with modules

This library provides a suite of ES6 modules. A .js suffix is required in all import statements. All modules provide named exports.

import { cmb, Semigroup } from "@neotype/prelude/cmb.js";
import { cmp, eq, Eq, Ord } from "@neotype/prelude/cmp.js";
import { Either } from "@neotype/prelude/either.js";
import { Maybe } from "@neotype/prelude/maybe.js";
// etc.

See each module's documentation for recommended import practices and available exports.