componentfrom
Componentfrom is a theoretical operator in software design and data modeling that retrieves a component from a composite structure by navigating a path or selector. It formalizes the common pattern of extracting a subpart of a larger object while keeping the retrieval logic distinct from the rest of the system. The term combines component and from to emphasize the origin of the retrieved element.
In formal terms, componentfrom is defined as componentfrom(input, path) -> output, where input is a composite type
Example: given data = {user: {name: "Aly", address: {city: "Paris"}}}, componentfrom(data, "user.address.city") returns "Paris". In a UI
Relation to other concepts: componentfrom is closely related to projection, path-based access, and lenses in functional
History and terminology: The term is used in speculative or educational contexts to describe a common pattern