isWeakKind Available since v0.9

Determine if object of a "weak" kind, e.g. WeakRef, WeakMap, or WeakSet.

import { isWeakKind } from '@aedart/support/reflections';

const a = {};

isWeakKind(null); // false
isWeakKind(a); // false
isWeakKind(new Map()); // false
isWeakKind(new Set()); // false

isWeakKind(new WeakRef(a)); // true
isWeakKind(new WeakMap()); // true
isWeakKind(new WeakSet()); // true