2 * assign-symbols <https://github.com/jonschlinkert/assign-symbols>
4 * Copyright (c) 2015, Jon Schlinkert.
5 * Licensed under the MIT License.
10 module.exports = function(receiver, objects) {
11 if (receiver === null || typeof receiver === 'undefined') {
12 throw new TypeError('expected first argument to be an object.');
15 if (typeof objects === 'undefined' || typeof Symbol === 'undefined') {
19 if (typeof Object.getOwnPropertySymbols !== 'function') {
23 var isEnumerable = Object.prototype.propertyIsEnumerable;
24 var target = Object(receiver);
25 var len = arguments.length, i = 0;
28 var provider = Object(arguments[i]);
29 var names = Object.getOwnPropertySymbols(provider);
31 for (var j = 0; j < names.length; j++) {
34 if (isEnumerable.call(provider, key)) {
35 target[key] = provider[key];