blob: dea167276f049d4eec8c7a74eee4cc769c88782d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-weakmap.prototype.delete
description: >
Delete an entry with an Object key, added from initial iterable.
info: |
WeakMap.prototype.delete ( _key_ )
3. Let _entries_ be the List that is _M_.[[WeakMapData]].
4. If CanBeHeldWeakly(_key_) is *false*, return *false*.
5. For each Record {[[Key]], [[Value]]} _p_ of _entries_, do
a. If _p_.[[Key]] is not ~empty~ and SameValue(_p_.[[Key]], _key_) is
*true*, then
i. Set _p_.[[Key]] to ~empty~.
ii. Set _p_.[[Value]] to ~empty~.
iii. Return *true*.
features: [WeakMap]
---*/
var foo = {};
var map = new WeakMap([
[foo, 42]
]);
var result = map.delete(foo);
assert.sameValue(map.has(foo), false);
assert.sameValue(result, true, 'WeakMap#delete returns true');
reportCompare(0, 0);
|
