The WeakRef()
constructor creates WeakRef
objects.
The WeakRef()
constructor creates WeakRef
objects.
target
The target value the WeakRef should refer to (also called the referent). Must be an object or a non-registered symbol.
A new WeakRef
object referring to the given target value.
TypeError
Thrown if target
is not an object or a non-registered symbol.
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(); } }
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Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
WeakRef |
84 | 84 | 79 | 70 | 14.1 | 84 | 79 | 60 | 14.5 | 14.0 | 84 | 1.0 | 14.6.0 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakRef/WeakRef