What happens when we dispatch an action react?

Dispatching an action within a reducer is an anti-pattern . Your reducer should be without side effects, simply digesting the action payload and returning a new state object. Adding listeners and dispatching actions within the reducer can lead to chained actions and other side effects.

Can useReducer replace Redux? The useReducer hook should be used in components that have complex logic behind it. It shows as the main confusion with the Redux library, because developers tend to think that useReducer could replace the state manager library. But in fact, its use should be restricted to components .

The dispatch method is a method of the store object. An action is dispatched to trigger an update to the store .

useSelector is a function that takes the current state as an argument and returns whatever data you want from it and it allows you to store the return values inside a variable within the scope of you functional components instead of passing down as props.

useDispatch() ​ This hook returns a reference to the dispatch function from the Redux store . You may use it to dispatch actions as needed.

dispatch is a function of the Redux store . You call store. dispatch to dispatch an action. This is the only way to trigger a state change. With React Redux, your components never access the store directly – connect does it for you.30 May 2021

dispatch() is the method used to dispatch actions and trigger state changes to the store . react-redux is simply trying to give you convenient access to it. Note, however, that dispatch is not available on props if you do pass in actions to your connect function.18 Mar 2017