js-functools

Function tools for JavaScript.

let j = ( a , b , c , x ) => a * x**2 + b * x + c ;
let p = partial( j , [ 5 , 4 , -1 ] ) ;
p( -1 ) ; // 5 - 4 - 1 = 0

Can be managed through jspm, duo, component, bower, ender, jam, spm, and npm.

Install

jspm

jspm install github:aureooms/js-functools
# or
jspm install npm:aureooms-js-functools

duo

No install step needed for duo!

component

component install aureooms/js-functools

bower

bower install aureooms-js-functools

ender

ender add aureooms-js-functools

jam

jam install aureooms-js-functools

spm

spm install aureooms-js-functools --save

npm

npm install aureooms-js-functools --save

Require

jspm

let functools = require( "github:aureooms/js-functools" ) ;
// or
import functools from 'aureooms-js-functools' ;

duo

let functools = require( "aureooms/js-functools" ) ;

component, ender, spm, npm

let functools = require( "aureooms-js-functools" ) ;

bower

The script tag exposes the global variable functools.

<script src="bower_components/aureooms-js-functools/js/dist/functools.min.js"></script>

Alternatively, you can use any tool mentioned here.

jam

require( [ "aureooms-js-functools" ] , function ( functools ) { ... } ) ;

Use

let f = x => x + 1 ;
let g = x => 2 * x ;
let odd = compose( f , g ) ;
odd( 7 ) ; // 2 * 7 + 1 = 15

let j = ( a , b , c , x ) => a * x**2 + b * x + c ;
let p = partial( j , [ 5 , 4 , -1 ] ) ;
p( -1 ) ; // 5 - 4 - 1 = 0

let add = curry( ( x , y ) => x + y , 2 ) ;
add(2)(3) ; // 5

Reference

• https://docs.python.org/3/library/functions.html
• https://docs.python.org/3/library/functools.html
• https://github.com/lodash/lodash