WeakSet.prototype.delete()

Baseline

20159

delete() WeakSet

const weakset = new WeakSet();
const object = {};

weakset.add(object);

console.log(weakset.has(object));
// : true

weakset.delete(object);

console.log(weakset.has(object));
// : false

weakSetInstance.delete(value)

value: WeakSet

WeakSet true WeakSet false value false

delete()

const ws = new WeakSet();
const obj = {};

ws.add(window);

ws.delete(obj); // false  obj 
ws.delete(window); // true 

ws.has(window); // false  window  WeakSet


ECMAScript 2027 LanguageSpecification # sec-weakset.prototype.delete

WeakSet
WeakSet.prototype.add()
WeakSet.prototype.has()

MDN

MDN 2026629

GitHub

WeakSet
1. WeakSet()
Object/Function
1. __proto__
2. constructor