WeakMap.prototype.set()
The set()
method adds a new element with a specified key
and value to a WeakMap
object.
Syntax
set(key, value)
Parameters
key
-
Required. Must be
object
. The key of the element to add to theWeakMap
object. value
-
Required. Any value. The value of the element to add to the
WeakMap
object.
Return value
The WeakMap
object.
Examples
Using the set() method
var wm = new WeakMap();
var obj = {};
// Add new elements to the WeakMap
wm.set(obj, 'foo').set(window, 'bar'); // chainable
// Update an element in the WeakMap
wm.set(obj, 'baz');
Specifications
Specification |
---|
ECMAScript Language Specification # sec-weakmap.prototype.set |
Browser compatibility
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