# nodash > A port of the Haskell Prelude to JavaScript/NodeJS Latest version **0.12.0** (published 2015-10-14) · MIT license · 0 weekly downloads ## Install ```sh npm install nodash pnpm add nodash yarn add nodash bun add nodash ``` ## Health **Score 15/100 (F)** — status: abandoned. Positive: no vulnerabilities. Warnings: low downloads; no types; no esm support; pre 1.0. Negative: abandoned; low maintenance score. ## Facts | | | |---|---| | Version | 0.12.0 | | Published | 2015-10-14 | | First published | 2015-04-26 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 2 | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 18 | | Author | Julian Alexander Fleischer | | Maintainers | scravy | | Keywords | prelude, haskell, functional, functional-programming, utility, library | ## Links - npm: https://www.npmjs.com/package/nodash - Repository: https://github.com/scravy/nodash - Homepage: https://scravy.github.io/nodash - Issues: https://github.com/scravy/nodash/issues - npm.io page: https://npm.io/package/nodash ## Dependencies (2) - [knuth-morris-pratt](https://npm.io/package/knuth-morris-pratt.md) ^1.0.0 - [steinhaus-johnson-trotter](https://npm.io/package/steinhaus-johnson-trotter.md) ^1.1.0 ## Alternatives - [lodash.assign](https://npm.io/package/lodash.assign.md) — 2.3M weekly downloads - [lodash.chunk](https://npm.io/package/lodash.chunk.md) — 1.8M weekly downloads - [react-native-ios-utilities](https://npm.io/package/react-native-ios-utilities.md) — 138.5K weekly downloads - [@technically/lodash](https://npm.io/package/@technically/lodash.md) — 50.9K weekly downloads - [@fluid-topics/ft-icon](https://npm.io/package/@fluid-topics/ft-icon.md) — 20.6K weekly downloads ## Recent versions - 0.12.0 (latest) — 2015-10-14 - 0.11.1 — 2015-10-13 - 0.11.0 — 2015-10-13 - 0.10.3 — 2015-10-07 - 0.10.2 — 2015-10-07 - 0.10.1 — 2015-10-06 - 0.10.0 — 2015-10-05 - 0.9.2 — 2015-09-03 - 0.9.1 — 2015-09-03 - 0.9.0 — 2015-09-02 - 0.8.2 — 2015-08-21 - 0.8.1 — 2015-08-19 - 0.8.0 — 2015-08-06 - 0.7.1 — 2015-06-13 - 0.7.0 — 2015-06-12 - … 3 more at https://npm.io/package/nodash/versions ## README nodash ====== [![Build Status](https://travis-ci.org/scravy/nodash.svg?branch=master)](https://travis-ci.org/scravy/nodash) [![Dependencies](https://david-dm.org/scravy/nodash.svg)](https://david-dm.org/scravy/nodash#info=dependencies&view=table) [![Dependencies](https://david-dm.org/scravy/nodash/dev-status.svg)](https://david-dm.org/scravy/nodash#info=devDependencies&view=table) ***nodash*** offers you a rich set of library functions, comparable to the likes of [***underscore***](http://underscorejs.org/) or [***lodash***](https://lodash.com/). The functions are actually derived from the [***Haskell Prelude***](https://hackage.haskell.org/package/base-4.7.0.0/docs/Prelude.html) and emphasize a [functional programming style](https://www.cs.cmu.edu/~crary/819-f09/Backus78.pdf). A special trait of this library is that it discards some JavaScript concepts (like prototypes or optional arguments) to allow some (in the authors opinion) more useful ones (such as currying). Every function from this library can be thought of as *curried*, i.e. you can partially apply any function and get a function in return (on the other hand this means there are no optional arguments). It also supports *lists* which can be evaluated lazily and *infinite streams*. Browse through the [apidoc](https://scravy.github.io/nodash/apidoc.html), [benchmark](https://github.com/scravy/nodash/tree/master/benchmark/index.js), or [tests](https://github.com/scravy/nodash/tree/master/test) for examples. For a list of which prelude functions are covered see the [apidoc appendix](http://scravy.github.io/nodash/apidoc.html#Appendix). Nodash is available via [npm](https://www.npmjs.com/package/nodash). Example ------- ```JavaScript Nodash.install(global || window); // node or browser var reverse = foldl(flip(cons), []); console.log(reverse([1,2,3])); // → [3,2,1] ``` Usage ----- ### in node ``` npm install --save nodash ``` ```JavaScript var Nodash = require('nodash'); ``` ### in the browser ```HTML ``` ### in legacy browsers Just pull in `es5-shim` first: ```HTML ``` ### `install(mountpoint)` It is possible to attach the Nodash functions directly to the global object (in fact, any object), optionally with a prefix or postfix: ```JavaScript Nodash.install(global); → foldl(flip(cons), []); Nodash.install([ '$', global ]); → $foldl($flip($cons), []); Nodash.install([ global, '_' ]); → foldl_(flip_(cons_), []); Nodash.install([ 'f_', global ]); → f_foldl(f_flip(f_cons), []); ``` Both a prefix and a postfix works too: ```JavaScript Nodash.install([ '__', global, '__' ]); → __foldl__(__flip__(__cons__), []); ``` License ------- Copyright (c) 2015 Julian Alexander Fleischer Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --- _Source: https://npm.io/package/nodash · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._