It’s just too much to tell on a forum. You may start here https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/CocoaBindings/CocoaBindings

It’s just too much to tell on a forum. You may start here https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/CocoaBindings/CocoaBindings.html https://developer.apple.com/library/archive/documentation/Co... (it’s not really Apple specific, it just has good overview guides). If you want a quick answer, state lives apart from views and is controlled by either predefined or custom behavior. It also doesn’t have to be flat (which React endorses) and smeared over a hierarchy of tiny proxy “components” which cannot really live outside of that hierarchy. Also, cocoa way is not the only way, and React is compatible with other approaches, some of which react guys call “stores”.