| 'use strict'; |
| |
| var callable = require('../../object/valid-callable') |
| , aFrom = require('../../array/from') |
| |
| , apply = Function.prototype.apply, call = Function.prototype.call |
| , callFn = function (arg, fn) { return call.call(fn, this, arg); }; |
| |
| module.exports = function (fn/*, …fnn*/) { |
| var fns, first; |
| if (!fn) callable(fn); |
| fns = [this].concat(aFrom(arguments)); |
| fns.forEach(callable); |
| fns = fns.reverse(); |
| first = fns[0]; |
| fns = fns.slice(1); |
| return function (arg) { |
| return fns.reduce(callFn, apply.call(first, this, arguments)); |
| }; |
| }; |
