WeakMap.prototype.delete()
The delete() method removes the specified element from a
WeakMap object.
Try it
Syntax
delete(key)
Parameters
key-
The key of the element to remove from the
WeakMapobject.
Return value
true if an element in the WeakMap object has been removed successfully. false if the key is not found in the WeakMap. Always returns false if key is not an object or a non-registered symbol.
Examples
Using the delete() method
const wm = new WeakMap();
wm.set(window, "foo");
wm.delete(window); // Returns true. Successfully removed.
wm.has(window); // Returns false. The window object is no longer in the WeakMap.
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-weakmap.prototype.delete |
Browser compatibility
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