text: 'use strict';
  var toIndexedObject = require('../internals/to-indexed-object');
  var addToUnscopables = require('../internals/add-to-unscopables');
  var Iterators = require('../internals/iterators');
  var InternalStateModule = require('../internals/internal-state');
  var defineIterator = require('../internals/define-iterator');
  
  var ARRAY_ITERATOR = 'Array Iterator';
  var setInternalState = InternalStateModule.set;
  var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);
  
  // `Array.prototype.entries` method
  // https://tc39.es/ecma262/#sec-array.prototype.entries
  // `Array.prototype.keys` method
  // https://tc39.es/ecma262/#sec-array.prototype.keys
  // `Array.prototype.values` method
  // https://tc39.es/ecma262/#sec-array.prototype.values
  // `Array.prototype[@@iterator]` method
  // https://tc39.es/ecma262/#sec-array.prototype-@@iterator
  // `CreateArrayIterator` internal method
  // https://tc39.es/ecma262/#sec-createarrayiterator
  module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
    setInternalState(this, {
      type: ARRAY_ITERATOR,
      target: toIndexedObject(iterated), // target
      index: 0,                          // next index
      kind: kind                         // kind
    });
  // `%ArrayIteratorPrototype%.next` method
  // https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
  }, function () {
    var state = getInternalState(this);
    var target = state.target;
    var kind = state.kind;
    var index = state.index++;
    if (!target || index >= target.length) {
      state.target = undefined;
      return { value: undefined, done: true };
    }
    if (kind == 'keys') return { value: index, done: false };
    if (kind == 'values') return { value: target[index], done: false };
    return { value: [index, target[index]], done: false };
  }, 'values');
  
  // argumentsList[@@iterator] is %ArrayProto_values%
  // https://tc39.es/ecma262/#sec-createunmappedargumentsobject
  // https://tc39.es/ecma262/#sec-createmappedargumentsobject
  Iterators.Arguments = Iterators.Array;
  
  // https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
  addToUnscopables('keys');
  addToUnscopables('values');
  addToUnscopables('entries');
  