Here are 5 things Redux has to do

1. It has to hold content of your state by creating the store

//we do that by creating a store
const store = createstore(reducer);
// if this doesnt work then probably use configureStore or legacy_createStore

1. It has to allows us to access states by using .getState() function

console.log('Initial State', store.getState())

1. It has to create listeners to listen updates

// We do that with a .subscribe method
const subscribe = store.subscribe(() => 
    console.log('Updated State', store.getState())
);

1. It has allows us to update state

// we can dispatch() function
store.dispatch(buyCake());

1. And finally use those listeners to listener to listen for those changes

subscribe();// we just called the subscribe from responsibility no 3.

The entire code will look something like this.

//we do that by creating a store
const store = createstore(reducer);
// if this doesnt work then probably use configureStore or legacy_createStore

console.log('Initial State', store.getState())

const subscribe = store.subscribe(() => 
    console.log('Updated State', store.getState())
);
//I called dispatch multiple time just because I can 😂
store.dispatch(buyCake());
store.dispatch(buyCake());
store.dispatch(buyCake());
store.dispatch(buyCake());

subscribe();