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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 22.1.4.1
description: >
Instances has the own property length
info: |
22.1.4.1 length
The length property of an Array instance is a data property whose value is
always numerically greater than the name of every configurable own property
whose name is an array index.
The length property initially has the attributes { [[Writable]]: true,
[[Enumerable]]: false, [[Configurable]]: false }.
---*/
class Ar extends Array {}
var arr = new Ar('foo', 'bar');
assert.sameValue(arr[0], 'foo');
assert.sameValue(arr[1], 'bar');
var arrDesc = Object.getOwnPropertyDescriptor(arr, 'length');
assert.sameValue(arrDesc.writable, true);
assert.sameValue(arrDesc.enumerable, false);
assert.sameValue(arrDesc.configurable, false);
assert.sameValue(arr[1], 'bar');
arr.length = 1;
assert.sameValue(arr[0], 'foo');
assert.sameValue(arr[1], undefined);
reportCompare(0, 0);