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- 'use strict';
-
- var GetIntrinsic = require('../GetIntrinsic');
-
- var $iterator = GetIntrinsic('%Symbol.iterator%', true);
-
- var callBound = require('../helpers/callBound');
-
- var $arrayJoin = callBound('Array.prototype.join');
- var $arrayPush = callBound('Array.prototype.push');
- var $stringSlice = callBound('String.prototype.slice');
- var $stringSplit = callBound('String.prototype.split');
-
- var AdvanceStringIndex = require('./AdvanceStringIndex');
- var GetIterator = require('./GetIterator');
- var GetMethod = require('./GetMethod');
- var IsArray = require('./IsArray');
- var IteratorStep = require('./IteratorStep');
- var IteratorValue = require('./IteratorValue');
- var ToObject = require('./ToObject');
- var Type = require('./Type');
-
- // https://www.ecma-international.org/ecma-262/7.0/#sec-iterabletoarraylike
-
- module.exports = function IterableToArrayLike(items) {
- var usingIterator;
- if ($iterator) {
- usingIterator = GetMethod(items, $iterator);
- } else if (IsArray(items)) {
- usingIterator = function () {
- var i = -1;
- var arr = this; // eslint-disable-line no-invalid-this
- return {
- next: function () {
- i += 1;
- return {
- done: i >= arr.length,
- value: arr[i]
- };
- }
- };
- };
- } else if (Type(items) === 'String') {
- usingIterator = function () {
- var i = 0;
- return {
- next: function () {
- var nextIndex = AdvanceStringIndex(items, i, true);
- var value = $arrayJoin($stringSplit($stringSlice(items, i, nextIndex), ''), '');
- i = nextIndex;
- return {
- done: nextIndex > items.length,
- value: value
- };
- }
- };
- };
- }
- if (typeof usingIterator !== 'undefined') {
- var iterator = GetIterator(items, usingIterator);
- var values = [];
- var next = true;
- while (next) {
- next = IteratorStep(iterator);
- if (next) {
- var nextValue = IteratorValue(next);
- $arrayPush(values, nextValue);
- }
- }
- return values;
- }
-
- return ToObject(items);
- };
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