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KudoJS is a small utility library with a collection of popular Algebraic Data Types and Helper functions to help you write code in a functional programming style in Javascript.

KudoJS Documentation

Installation

Install and save KudoJS as a dependency in your current project

$ npm install --save fp-kudojs

Import using CommonJS

const kudoJS = require("fp-kudojs")

Import using ES Modules

import kudoJS from "fp-kudojs"

Import single entities using CommonJS

const compose = require("fp-kudojs/function/compose");
const Maybe = require("fp-kudojs/adt/Maybe");

Import single entities using ES Modules

import compose from "fp-kudojs/function/compose";
import Maybe from "fp-kudojs/adt/Maybe";

Helper Functions

These are the functions under the kudoJS.* namespace

• kudoJS.id
• kudoJS.once
• kudoJS.curry
• kudoJS.ocurry
• kudoJS.compose
• kudoJS.constant
• kudoJS.fmap
• kudoJS.assoc
• kudoJS.bimap
• kudoJS.chain
• kudoJS.caseOf
• kudoJS.liftAn
• kudoJS.liftA2
• kudoJS.liftA3
• kudoJS.liftA4
• kudoJS.liftA5
• kudoJS.when
• kudoJS.pick
• kudoJS.prop
• kudoJS.eitherToMaybe
• kudoJS.maybeToEither

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Algebraic Data Types (ADTs)

ADTs under the kudoJS.* namespace. All of the data types are compatible with the Fantasy Land Specifications

• kudoJS.Identity
• kudoJS.Pair
• kudoJS.Maybe
• kudoJS.Either
• kudoJS.Task
• kudoJS.Reader
• kudoJS.State

ADT	Constructors	Static Methods	Instance Methods
kudoJS.Identity	Identity, of		equals, concat,ap, getValue, map,chain, toString
kudoJS.Pair	Pair, of		equals, concat, fst, snd, ap, getValue, map, bimap, chain, swap, toString
kudoJS.Maybe	of, Just, Nothing, zero, fromNullable, withDefault	catMaybes, isNothing, isJust	equals, ap, alt, map, chain, toString, getValue, isNothing, isJust
kudoJS.Either	of, Left, Right, fromNullable, withDefault	try, isLeft, isRight	equals, ap, getValue, map, bimap, chain, swap, toString, isLeft, isRight
kudoJS.Task	Task, of, rejected		fork, concat, ap, getValue, map, chain, toPromise, toString
kudoJS.Reader	Reader, of, ask		runWith, ap, getValue, map, chain, toString
kudoJS.State	State, of, get, put		runWith, execWith, evalWith, ap, getValue, map, chain, toString

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License

All code and documentation are (c) 2021 Ritesh Pillai and released under the MIT License. A copy of the MIT License is also included.