WeakMap.prototype.get()
The get() method of WeakMap instances returns a specified element from this WeakMap.
Try it
Syntax
js
get(key)
Parameters
key-
The key of the element to return from the
WeakMapobject.
Return value
The element associated with the specified key in the WeakMap object. If
the key can't be found, undefined is returned. Always returns
undefined if key is not an object or a non-registered symbol.
Examples
Using the get() method
js
const wm = new WeakMap();
wm.set(window, "foo");
wm.get(window); // Returns "foo".
wm.get("baz"); // Returns undefined.
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-weakmap.prototype.get |
Browser compatibility
| desktop | mobile | server | |||||||||||
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get | |||||||||||||