WeakSet.prototype.delete()
- Standard built-in objects
WeakSet- Methods
WeakSet.prototype.add()WeakSet.prototype.delete()WeakSet.prototype.has()
- Inheritance:
Function- Properties
- Methods
Object- Properties
- Methods
Object.prototype.__defineGetter__()Object.prototype.__defineSetter__()Object.prototype.__lookupGetter__()Object.prototype.__lookupSetter__()Object.prototype.hasOwnProperty()Object.prototype.isPrototypeOf()Object.prototype.propertyIsEnumerable()Object.setPrototypeOf()Object.prototype.toLocaleString()Object.prototype.toSource()Object.prototype.toString()Object.prototype.valueOf()
The delete() method removes the specified element from a
WeakSet object.
Syntax
delete(value)
Parameters
value-
Required. The object remove from the
WeakSetobject.
Return value
true if an element in the WeakSet object has been removed
successfully. false if the value is not found in
the WeakSet or if the value is not an object.
Examples
Using the delete() method
var ws = new WeakSet();
var obj = {};
ws.add(window);
ws.delete(obj); // Returns false. No obj found to be deleted.
ws.delete(window); // Returns true. Successfully removed.
ws.has(window); // Returns false. The window is no longer present in the WeakSet.
Specifications
| Specification |
|---|
| ECMAScript Language Specification (ECMAScript) # sec-weakset.prototype.delete |
Browser compatibility
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