crocks/core/curryN.js

A collection of well known Algebraic Datatypes for your utter enjoyment.

/** @license ISC License (c) copyright 2017 original and current authors */
/** @author Ian Hofmann-Hicks (evil) */

function curryN(n, fn) {
  return function() {
    var xs = [], len = arguments.length;
    while ( len-- ) xs[ len ] = arguments[ len ];

    var args =
      xs.length ? xs : [ undefined ]

    var remaining =
       Math.floor(n) - args.length

    return remaining > 0
      ? curryN(remaining, Function.bind.apply(fn, [ null ].concat(args)))
      : fn.apply(null, args.slice(0, n))
  }
}

module.exports = curryN