objectset
An objectset is a programming construct that stores a collection of unique objects. It supports standard set operations such as add, remove, contains, and size, as well as set-theoretic operations like union, intersection, and difference. In an objectset, elements are maintained without duplicates and can be iterated in some defined order depending on implementation.
Semantics: element identity versus equality. Some languages define equality by a set of fields (structural equality),
Implementation and performance: most objectsets rely on a hash table to achieve fast membership tests and insertions,
Examples and use cases: objectsets are useful for deduplicating items, performing fast membership tests, caching keys,