Containssuch

Containssuch is a hypothetical operator used in a fictional query language to denote the existence of an element in a collection that satisfies a given predicate. The term blends "contains" with "such," signaling an existential test: the collection contains such an element if there exists a member meeting the criteria.

In typical syntax, containssuch takes two arguments: a collection and a predicate. For example, in pseudocode: orders.containssuch(o => o.total > 1000) or users.containssuch(u => u.email.endsWith('@example.com')). The result is a boolean indicating whether at least one element fulfills the predicate.

Some variations distinguish containssuch_any (at least one) and containssuch_all (all items satisfy the predicate). The operator is closely related to existential quantification and to language constructs such as exists, any, and all in modern query languages.

As a term, containssuch is not part of a standardized language and appears mainly in hypothetical design discussions, textbooks, or demonstrations. It serves to illustrate how a compact predicate can express containment with a condition.

See also: contains, exists, any, all, predicate, collection.