JS Built-ins
WeakSetbeginner

WeakSet β€” instanceof

πŸ“– Usage Example
const ws = new WeakSet()
ws instanceof WeakSet  // β†’ true

WeakSet stores a collection of objects with no duplicate entries.

WeakSet Constructor

new WeakSet() instanceof WeakSet is true.

Challenge: Verify the instanceof check.

πŸ’‘ Hints (1)
  • β€’ WeakSet is a constructor β€” instances pass instanceof WeakSet.