Interface Dispatch<A>

A dispatching function (or simply dispatch function) is a function that accepts an action or an async action; it then may or may not dispatch one or more actions to the store.

We must distinguish between dispatching functions in general and the base dispatch function provided by the store instance without any middleware.

The base dispatch function always synchronously sends an action to the store's reducer, along with the previous state returned by the store, to calculate a new state. It expects actions to be plain objects ready to be consumed by the reducer.

Middleware wraps the base dispatch function. It allows the dispatch function to handle async actions in addition to actions. Middleware may transform, delay, ignore, or otherwise interpret actions or async actions before passing them to the next middleware.