Interface Object
↔ Object to interact with API by expose Method & Property Key
aka Interface
References
HTMLElement
↔ Interface Object to repElement
in HTMLContext
↔ Interface Object to share data to all Subscribingchildren
History Object
↔React Router API
Interface Object to Subscribe URL change & manipulate History StackReactDOMServer
↔ReactDOM API
Interface Object to render FC to static HTMLWorker
↔ Interface Object to rep bg task, create via js, or spawn more workers