WeakMap.prototype.delete()
The delete() method removes the specified element from a
WeakMap object.
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 or
if the key is not an object.
Examples
Using the delete() method
var 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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