Back to JavaScript pack
JavaScript card reviewhard

What are WeakMap and WeakSet?

WeakMap and WeakSet are collections that hold weak references to objects, allowing garbage collection when there are no other references.

Related Drills

What are JavaScript Closures and how are they useful in practice?

Study card

Explain event delegation in JavaScript and why we should use it.

Study card

1 . What is the difference between let, const, and var?

Study card
JB

Jeevan Bhargav

Audited by Creator

This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.