The two last bullets can really be condensed into one theme, namely eventing, or the ability to register to and fire off events.
So what does a cleanup of the store look like, and why would we need to clean it up? The reason for cleaning it up is it makes for simpler code. There is a standard library that is often used when constructing a store, called EventEmitter. The library handles just what we mentioned previously, namely it is able to register and fire off events. It is a simple implementation of the pub-sub pattern. Basically, EventEmitter allows you to subscribe to certain events and also allows you to trigger events. For more information on the pattern itself, have a look at the following link: https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern ...
