A store holds the whole state of your application, and the only way to change the state inside is by dispatching an action. A store is not a class; it is just an object with a few methods on it.
The store methods are as follows:
- getState(): Returns the current state of your application
- dispatch(action): Dispatches an action and is the only way to trigger a state change
- subscribe(listener): Adds a change listener that is called any time an action is dispatched
- replaceReducer(nextReducer): Replaces the reducer that is currently used by the store to calculate the state
