Functions are very simple maps to functionality; they only act as name-tags. Link's requests share an API for functional descriptions which are mostly "name," "

Functions are very simple maps to functionality; they only act as name-tags. Link's requests share an API for functional descriptions which are mostly "name," "verb," and "content-type." That enforces a structure that's recognizable and specific. So LinkJS is dependency injection. It makes it possible to configure code into the application.