apart/legacy/apart.js

partial function application

'use strict';

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

module.exports = function (fn) {
  for (var _len = arguments.length, a = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    a[_key - 1] = arguments[_key];
  }

  check(fn);
  return function () {
    for (var _len2 = arguments.length, b = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      b[_key2] = arguments[_key2];
    }

    var args = a.concat(b);
    return fn.apply(void 0, _toConsumableArray(args));
  };
};

function check(fn) {
  if (typeof fn !== 'function') throw Error('fn should be function!');
}