The delete()
method removes the specified element from a WeakSet
object.
ws.delete(value);
value
WeakSet
object.true
if an element in the WeakSet
object has been removed successfully. false
if the value
is not found in the WeakSet
or if the value
is not an object.
var ws = new WeakSet(); var obj = {}; ws.add(window); ws.delete(obj); // Returns false. No obj found to be deleted. ws.delete(window); // Returns true. Successfully removed. ws.has(window); // Returns false. The window is no longer present in the WeakSet.
Specification |
---|
ECMAScript (ECMA-262) The definition of 'WeakSet.prototype.delete' in that specification. |
Desktop | ||||||
---|---|---|---|---|---|---|
delete |
36 | 12 | 34 | No | 23 | 9 |
Mobile | ||||||
---|---|---|---|---|---|---|
delete |
37 | 36 | 34 | 24 | 9 | 3.0 |
Server | |
---|---|
delete |
0.12 |
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https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/delete