test262/test/language/statements/for-of/uint8array-mutate.js

35 lines
768 B
JavaScript

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 13.6.4
description: Uint8Array mutation during traversal using for..of
info: >
Uint8Array instances should be able to be traversed using a `for..of` loop,
and dynamic changes to their contents should be reflected in the iterated
values.
features: [TypedArray]
---*/
var iterationCount = 0;
var array = new Uint8Array([3, 2, 4, 1]);
var first = 3;
var second = 64;
var third = 4;
var fourth = 1;
for (var x of array) {
assert.sameValue(x, first);
first = second;
second = third;
third = fourth;
fourth = null;
array[1] = 64;
iterationCount += 1;
}
assert.sameValue(iterationCount, 4);