compose-funcs

compose-funcs

Compose functions (i.e. f(g(x)) -> (f ∘ g)(x)). Returns a function with correct length and a descriptive name

Features

• Composes functions, duh
• Returns a function with the correct length, i.e. the same length as the rightmost function
• Returns a function with a descriptive name for easier debugging, e.g:

  compose(f, g, h) -> a function named "f ∘ g ∘ h"
  

• Returns the identity function when given no arguments to make it extra functional

Installation

Install compose-funcs using npm:

npm install --save compose-funcs

Usage

const compose = require('compose-funcs');

const add = (a, b) => a + b;
const double = a => a * 2;
const doubleAndAdd = compose(double, add);
// doubleAndAdd.length === 2
// doubleAndAdd.name === double ∘ add
doubleAndAdd(3, 4); // the same as: double(add(3, 4))
// (3 + 4) * 2 = 14

API

compose(...functions)

Name	Type	Description
functions	Function	Any number of functions to compose to a new function

Returns: Function. The composed function.

License

MIT © Joakim Carlstein