Weak Set

Definitions

1. A JavaScript collection that holds object references weakly, meaning objects in the set can be garbage-collected if no other strong references exist. Unlike Set, a WeakSet is not iterable and only supports add, has, and delete operations.

   In plain English: A collection of objects that automatically drops items when nothing else in the program needs them anymore.

   Example: "I track which DOM elements have been initialized with a WeakSet so I never attach the event listener twice, and removed elements clean up naturally."

Related Terms

• Swap
• heap
• Isomorphic
• JSON Pointer
• Linked List
• Random Access
• Slice
• Sparse Array
• Stack Frame
• Weak Map
• Cyclic Reference