wishthis/node_modules/es5-ext/function/#/compose.js

"use strict";

var isValue  = require("../../object/is-value")
  , callable = require("../../object/valid-callable")
  , aFrom    = require("../../array/from");

var apply = Function.prototype.apply
  , call = Function.prototype.call
  , callFn = function (arg, fn) { return call.call(fn, this, arg); };

module.exports = function (fnIgnored /*, …fnn*/) {
	var fns, first;
	var args = aFrom(arguments);
	fns = isValue(this) ? [this].concat(args) : args;
	fns.forEach(callable);
	fns = fns.reverse();
	first = fns[0];
	fns = fns.slice(1);
	return function (argIgnored) { return fns.reduce(callFn, apply.call(first, this, arguments)); };
};