mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 19:53:50 +01:00
29 lines
811 B
JavaScript
29 lines
811 B
JavaScript
// Copyright (C) 2024 André Bargull. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
esid: sec-iterator.concat
|
|
description: >
|
|
Iterator.concat when called with zero arguments.
|
|
info: |
|
|
Iterator.concat ( ...items )
|
|
|
|
1. Let iterables be a new empty List.
|
|
2. For each element item of items, do
|
|
...
|
|
3. Let closure be a new Abstract Closure with no parameters that captures iterables and performs the following steps when called:
|
|
a. For each Record iterable of iterables, do
|
|
...
|
|
b. Return ReturnCompletion(undefined).
|
|
...
|
|
6. Return gen.
|
|
features: [iterator-sequencing]
|
|
---*/
|
|
|
|
let iterator = Iterator.concat();
|
|
|
|
let iterResult = iterator.next();
|
|
|
|
assert.sameValue(iterResult.done, true);
|
|
assert.sameValue(iterResult.value, undefined);
|