1 | 'use strict';
|
2 |
|
3 | Object.defineProperty(exports, "__esModule", {
|
4 | value: true
|
5 | });
|
6 | exports.default = iterator;
|
7 |
|
8 | var _isArrayLike = require('lodash/isArrayLike');
|
9 |
|
10 | var _isArrayLike2 = _interopRequireDefault(_isArrayLike);
|
11 |
|
12 | var _getIterator = require('./getIterator');
|
13 |
|
14 | var _getIterator2 = _interopRequireDefault(_getIterator);
|
15 |
|
16 | var _keys = require('lodash/keys');
|
17 |
|
18 | var _keys2 = _interopRequireDefault(_keys);
|
19 |
|
20 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
21 |
|
22 | function createArrayIterator(coll) {
|
23 | var i = -1;
|
24 | var len = coll.length;
|
25 | return function next() {
|
26 | return ++i < len ? { value: coll[i], key: i } : null;
|
27 | };
|
28 | }
|
29 |
|
30 | function createES2015Iterator(iterator) {
|
31 | var i = -1;
|
32 | return function next() {
|
33 | var item = iterator.next();
|
34 | if (item.done) return null;
|
35 | i++;
|
36 | return { value: item.value, key: i };
|
37 | };
|
38 | }
|
39 |
|
40 | function createObjectIterator(obj) {
|
41 | var okeys = (0, _keys2.default)(obj);
|
42 | var i = -1;
|
43 | var len = okeys.length;
|
44 | return function next() {
|
45 | var key = okeys[++i];
|
46 | return i < len ? { value: obj[key], key: key } : null;
|
47 | };
|
48 | }
|
49 |
|
50 | function iterator(coll) {
|
51 | if ((0, _isArrayLike2.default)(coll)) {
|
52 | return createArrayIterator(coll);
|
53 | }
|
54 |
|
55 | var iterator = (0, _getIterator2.default)(coll);
|
56 | return iterator ? createES2015Iterator(iterator) : createObjectIterator(coll);
|
57 | }
|
58 | module.exports = exports['default']; |
\ | No newline at end of file |