The WeakRef
constructor creates a WeakRef
object referring to a given target object.
WeakRef() constructor
Syntax
new WeakRef(targetObject);
Parameters
- targetObject
-
The target object the WeakRef should refer to (also called the referent).
Examples
Creating a new WeakRef object
See the main WeakRef
page for a complete example.
class Counter { constructor(element) { // Remember a weak reference to a DOM element this.ref = new WeakRef(element); this.start(); } }
Specifications
Browser compatibility
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
WeakRef |
84
|
84
|
79
|
No
|
No
|
14.1
|
84
|
84
|
79
|
No
|
14.5
|
14.0
|
1.0
|
14.6.0
13.0.0
|
See also
© 2005–2022 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakRef/WeakRef