[![Build Status](https://travis-ci.org/evilsoft/crocks.svg?branch=master)](https://travis-ci.org/evilsoft/crocks) [![Coverage Status](https://coveralls.io/repos/github/evilsoft/crocks/badge.svg?branch=master)](https://coveralls.io/github/evilsoft/crocks?branch=master) [![Join the chat at https://gitter.im/crocksjs/crocks](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/crocksjs/crocks?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![NPM version](https://badge.fury.io/js/crocks.svg)](https://www.npmjs.com/package/crocks) `crocks` is a collection of popular *Algebraic Data Types (ADTs)* that are all the rage in functional programming. You have heard of things like `Maybe` and `Either` and heck maybe even `IO`, that is what these are. The main goal of `crocks` is to curate and provide not only a common interface between each type (where possible of course), but also provide all of the helper functions needed to hit the ground running. ## Table of Contents - [Installation](#installation) - [Usage](#usage) - [Entire `crocks` library (CommonJS)](#entire-crocks-library-commonjs) - [Entire `crocks` library (JS Modules)](#entire-crocks-library-js-modules) - [Single entities (CommonJS)](#single-entities-commonjs) - [Single entities (JS Modules)](#single-entities-js-modules) - [Documentation](#documentation) - [What is Included?](#what-is-included) - [Contributors](#contributors) - [Course/Videos](#coursevideos) - [Video evilsoft](#video-evilsoft) - [Video avanslaars](#video-avanslaars) - [Tutorials](#tutorials) - [Tutorial rpearce](#tutorial-rpearce) - [Examples](#examples) - [Example dbagia](#example-dbagia) ## Installation `crocks` is available from `npm` and is just a shell command away. All you need to do is run the following to save it as a dependency in your current project folder: ``` $ npm install crocks -S ``` ## Usage There are many options to use `crocks` to suit the needs of your, projects. When used on the backend or in an environment where size is not a big concern, the entire lib can be brought in and the various elements can be either be plucked off of or referenced by the namespace. For those cases where size matters, like in the case of frontend bundle building, the individual entities can be brought in. This will ensure that your finished bundles include only what is needed for your application/program. For using the latter case, refer to the desired function's documentation to find the path in which it resides. ### Entire `crocks` library (CommonJS) ```javascript // namespace entire suite to crocks variable const crocks = require('crocks') // pluck anything that does not require name-spacing const { safe, isNumber } = crocks // still requires entire object, but removes name-spacing const { and, liftA2 } = require('crocks') // divide :: Number -> Number const divide = x => y => x / y // safeNumber :: a -> Maybe Number const safeNumber = safe(isNumber) // notZero :: a -> Maybe Number const notZero = safe( and(isNumber, x => x !== 0) ) // safeDivide:: a -> Maybe Number const safeDivide = crocks.curry( (x, y) => liftA2(divide, safeNumber(x), notZero(y)) ) safeDivide(20, 0) //=> Nothing safeDivide(20, 5) //=> Just 4 safeDivide('number', 5) //=> Nothing ``` ### Entire `crocks` library (JS Modules) ```javascript // namespace entire suite to crocks variable import crocks from 'crocks' // still imports entire object, but removes name-spacing import { and, liftA2 } from 'crocks' // pluck anything that does not require name-spacing const { safe, isNumber } = crocks // divide :: Number -> Number const divide = x => y => x / y // safeNumber :: a -> Maybe Number const safeNumber = safe(isNumber) // notZero :: a -> Maybe Number const notZero = safe( and(isNumber, x => x !== 0) ) // safeDivide:: a -> Maybe Number const safeDivide = crocks.curry( (x, y) => liftA2(divide, safeNumber(x), notZero(y)) ) safeDivide(20, 0) //=> Nothing safeDivide(20, 5) //=> Just 4 safeDivide('number', 5) //=> Nothing ``` ### Single entities (CommonJS) ```javascript // require in each entity directly const and = require('crocks/logic/and') const curry = require('crocks/helpers/curry') const isNumber = require('crocks/predicates/isNumber') const liftA2 = require('crocks/helpers/liftA2') const safe = require('crocks/Maybe/safe') // divide :: Number -> Number const divide = x => y => x / y // safeNumber :: a -> Maybe Number const safeNumber = safe(isNumber) // notZero :: a -> Maybe Number const notZero = safe( and(isNumber, x => x !== 0) ) // safeDivide:: a -> Maybe Number const safeDivide = curry( (x, y) => liftA2(divide, safeNumber(x), notZero(y)) ) safeDivide(20, 0) //=> Nothing safeDivide(20, 5) //=> Just 4 safeDivide('number', 5) //=> Nothing ``` ### Single entities (JS Modules) ```javascript // import in each entity directly import and from 'crocks/logic/and' import curry from 'crocks/helpers/curry' import isNumber from 'crocks/predicates/isNumber' import liftA2 from 'crocks/helpers/liftA2' import safe from 'crocks/Maybe/safe' // divide :: Number -> Number const divide = x => y => x / y // safeNumber :: a -> Maybe Number const safeNumber = safe(isNumber) // notZero :: a -> Maybe Number const notZero = safe( and(isNumber, x => x !== 0) ) // safeDivide:: a -> Maybe Number const safeDivide = curry( (x, y) => liftA2(divide, safeNumber(x), notZero(y)) ) safeDivide(20, 0) //=> Nothing safeDivide(20, 5) //=> Just 4 safeDivide('number', 5) //=> Nothing ``` ## Documentation * [API Documentation](https://evilsoft.github.io/crocks/docs/) * [Contributing Information](https://github.com/evilsoft/crocks/blob/master/CONTRIBUTORS.md) ## What is Included? There are (8) classifications of "things" included in this library: * [Crocks][crock-docs]: These are the ADTs that this library is centered around. They are all `Functor` based Data Types that provide different computational contexts for working in a more declarative, functional flow. For the most part, a majority of the other bits in `crocks` exist to serve these ADTs. * [Monoids][monoid-docs]: These helpful ADTs are in a class of their own, not really `Functor`s in their own right (although some can be), they are still very useful in our everyday programming needs. Ever need to sum a list of numbers or mix a mess of objects together? This is were you will find the ADTs you need to do that. * [Combinators][combinator-docs]: A collection of functions that are used for working with other functions. These do things like compose (2) functions together, or flip arguments on a function. They typically either take a function, return a function or a bit a both. These are considered the glue that holds the mighty house of `crocks` together and a valuable aid in writing reusable code. * [Helper Functions][helper-docs]: All other support functions that are either convenient versions of combinators or not even combinators at all cover this group. * [Logic Functions][logic-docs]: A helpful collection of logic based functions. All of these functions work with either predicate functions or instances of `Pred` and let you combine them in some very interesting ways. * [Predicate Functions][predicate-docs]: A helpful collection of predicate functions to get you started. * [Point-free Functions][pointfree-docs]: Wanna use these ADTs in a way that you never have to reference the actual data being worked on? Well here is where you will find all of these functions to do that. For every algebra available on both the `Crocks` and `Monoids` there is a function here. * [Transformation Functions][transformation-docs]: All the functions found here are used to transform from one type to another, naturally. These come are handy in situations where you have functions that return one type (like an `Either`), but are working in a context of another (say `Maybe`). You would like to compose these, but in doing so will result in a nesting that you will need to account for for the rest of your flow. ## Contributors Thanks goes to these wonderful people ([emoji key][emojis]):

_{Ian Hofmann-Hicks} 💻 📖 📹	_Ryan 💻 🐛 👀	_{Andrew Van Slaars} 📖 📹	_{Henrique Limas} 💻 📖 👀	_{Robert Pearce} 🐛 💻 👀 ✅ 📖	_{Scott McCormack} 🐛	_{Fred Daoud} 👀
_{Karthik Iyengar} 👀 💻 📖	_{Jon Whelan} 🐛 💻	_{Benny Powers} 📖 💻 👀	_{Dale Francis} 💻 👀	_Premith 📖	_{Dipen Bagia} 💡	_{Andrew Jones} 📖
_{W. K. Seymour III} 📖	_{Eliseu Benedito Codinhoto} 📖	_{NiallArkEnergy} 💻 📖	_vidyu 📖	_{Michael Wolfenden} 📖	_{Johan Codinha} 🐛	_{Matt Ross} 💻
_{Jasmina Jacquelina} 📖 💻	_{Denis Zolkin} 📖	_{Zhentian Wan} 📖	_{RichardForrester} 💻 📖 ⚠️	_{Furkan Tunalı} 📖 💡

### Course/Videos #### Video evilsoft * [State Monad In JavaScript (egghead.io)](https://egghead.io/courses/state-monad-in-javascript) * [Working With ADTs (YouTube)](https://www.youtube.com/playlist?list=PLjvgv-FpMo7XRVFZjZsWXJ5nVmRJ5a5Hv) * [Functional JS (YouTube)](https://www.youtube.com/playlist?list=PLjvgv-FpMo7XvlfO8YKiz4_onf8WonhiA) #### Video avanslaars * [Safer JavaScript with the Maybe Type](https://egghead.io/courses/safer-javascript-with-the-maybe-type) ### Tutorials #### Tutorial rpearce * [Ramda Chops: Function Currying](https://robertwpearce.com/ramda-chops-function-currying.html) ### Examples #### Example dbagia * [React Declarative Form Generator](https://github.com/dbagia/declarative-form-generator) [crock-docs]: https://evilsoft.github.io/crocks/docs/crocks/ [monoid-docs]: https://evilsoft.github.io/crocks/docs/monoids/ [combinator-docs]: https://evilsoft.github.io/crocks/docs/functions/#combinators [helper-docs]: https://evilsoft.github.io/crocks/docs/functions/#helpers [logic-docs]: https://evilsoft.github.io/crocks/docs/functions/#logic [predicate-docs]: https://evilsoft.github.io/crocks/docs/functions/predicate-functions.html [pointfree-docs]: https://evilsoft.github.io/crocks/docs/functions/pointfree-functions.html [transformation-docs]: https://evilsoft.github.io/crocks/docs/functions/transformation-functions.html [emojis]:https://github.com/kentcdodds/all-contributors#emoji-key

	Stars	Issues	Version	Updated	Created
@cycle/dom			23.1.0	2 years ago	9 years ago
crocks	1,589	68	0.12.4	5 years ago	8 years ago
ramda	23,760	146	0.30.1	3 months ago	10 years ago

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