arity-n

Wraps a function with a function of a sertain arity.

Installation

npm install arity-n

Usage

function fn(a, b, c, d) {
}

var arityN = require('arity-n');
var newFn = arityN(fn, 3);

newFn.length; // => 3

var arity4 = require('arity-n/4');
var newFn = arity4(fn);

newFn.length; // => 4

// Max arity is 5.
var newFn = arityN(fn, 7);

newFn.length; // => 4