Lightweight and without any external dependencies arare enables you to write tacit, point-free, declarative & clean code while avoiding side-effects and mutations. Internally the library itself, comprised of over 200 functions, follows the functional programming paradigm and is materialized using fundamental functional qualities such as currying, recursion, tail calls, high-order functions, referential transparency, side-effects elimination and function composition. Additionally, arare utilizes automatic variadic currying for its functions, thus allowing the user to write more flexible, practical & minimal code, compared to regular strict currying. Finally, the library comes with a build-in interactive REPL environment, useful for directly inspecting and experimenting with all available modules without leaving the console.
- Over 200 available functions
- Build-in interactive REPL
- Point-free & tacit
- High-order & pure functions
- Automatic variadic currying
- Declarative & minimal syntax
- Side-effects & mutations free
- Lightweight with zero dependencies
- Build with functional code
- Actively developed
npm install arareImport arare and start using directly any of the available modules.
const A = require('arare')
A.map(A.add(10), A.range(1, 4, 1))
//=> [11, 12, 13]Alternatively, select and import only the modules that you need.
const {add, map, range} = require('arare')
map(add(10), range(1, 4, 1))
//=> [11, 12, 13]Initially, install arare globally in order to be able to access the REPL environment.
npm install -g arare
To launch the REPL simply type arare from anywhere in your console.
arare # launch REPL
The following lists contain all available functions grouped into categories according to the type of their respective returning value.
An alphabetically ordered list of all available functions can be found here.
Functions whose return value varies according to their input.
Functions whose return value is an array.
appendappendToarrayarrayifyarrayMinMaxbreakWhenconcatcopydropdropRightdropRightWhiledropWhileemptyentrieseraseFsfillfilterflattenhalveinitinsertkeysmapmapcatmergemergeByonespairpartitionpartitionAtprependprependTopropsrangerejectremoveremoveAllremoveRightreplace#replaceAllx-rep-xsreversesetHeadsetHeadWithsetLastsetLastWithsetNthsetNthWithshiftshiftLeftslicesplitswapTstailtaketakeRighttakeRightWhiletakeWhilevaluesxshiftxshiftLeftzeroszipzipReversezipSelfzipTailzipWith
Functions whose return value is a boolean.
andboolendsWitheqeqPropeveneveryexcludesFgtgtehasPropincludesisArrisDateisDefisEmptyisFnisIntisLowerisNegisNilisNullisNumisObjisPairisPosisRegExpisStrisUndefisUpperltltenandnonenornotnotArrnotDatenotEmptynotFnnotIntnotLowernotNilnotNullnotNumnotObjnotPairnotRegExpnotStrnotUpperoddorsomestartsWithTunequneqPropxnorxor
Functions whose return value is a function.
aritybinarycompconscurryflipgathernullarypartialpartialRightpipereverseArgsspreadternaryunaryxarrayxcurry
Functions whose return value is a number.
absabsDiffaddadjustIndexarrayMaxarrayMinceilcountcubedecrdivfactfindIndexgcdincrlcmlenmaxminminMaxmodmultnegnumonepowprodrecipsquaresubsumtrunczero
Functions whose return value is a string.
appendappendTobreakWhenconcatdropdropRightdropRightWhiledropWhileemptyerasehalveinitinsertjoinpartitionpartitionAtprependprependToremoveremoveremovereplace#replaceAllx-rep-xsreversesetHeadsetHeadWithsetLastsetLastWithsetNthsetNthWithshiftshiftLeftslicestrswaptailtaketakeRighttakeRightWhiletakeWhiletoLowertoUpperxshiftxshiftLeft
Functions whose return value is a plain object.
- Fork the repository and clone it to your machine
- Navigate to your local fork:
cd arare - Install the project dependencies:
npm installoryarn install - Lint the code and run the tests:
npm testoryarn test
- Klaudio Sinani (@klaudiosinani)