isWeakSet - util/types - Node

isWeakSet - util/types - Node documentation

function isWeakSet

import { isWeakSet } from "node:util/types";



isWeakSet(object: unknown): object is WeakSet<object>

Returns true if the value is a built-in WeakSet instance.

util.types.isWeakSet(new WeakSet());  // Returns true

Parameters



object: unknown

object is WeakSet<object>