get() method returns a specified element from a
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.
- Required. The key of the element to return from the
The element associated with the specified key in the
WeakMap object. If
the key can't be found,
undefined is returned.
var wm = new WeakMap(); wm.set(window, 'foo'); wm.get(window); // Returns "foo". wm.get('baz'); // Returns undefined.
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