The get()
method returns a specified element from a
WeakMap
object.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
The source for this interactive example is stored in a GitHub
repository. If you'd like to contribute to the interactive examples project, please
clone https://github.com/mdn/interactive-examples
and send us a pull request.
Syntax
wm.get(key);
Parameters
key
- Required. The key of the element to return from the
WeakMap
object.
Return value
The element associated with the specified key in the WeakMap
object. If
the key can't be found, undefined
is returned.
Examples
Using the get() method
var wm = new WeakMap();
wm.set(window, 'foo');
wm.get(window); // Returns "foo".
wm.get('baz'); // Returns undefined.
Specifications
Browser compatibility
BCD tables only load in the browser