What is the difference between NgRx selectors and reducers?

What is the difference between NgRx selectors and reducers?

NgRx selectors are functions used to select slices of state from the store, while reducers are pure functions that take the current state and an action to return a new state.

Can you give me an example of how to use a selector?

Sure! A selector might look like this: const selectUser = (state) => state.user; This function retrieves the user state from the store.

How do reducers handle actions?

Reducers listen for specific actions and update the state accordingly. For example, if an action 'ADD_USER' is dispatched, the reducer would add a new user to the state.

When should I use selectors instead of accessing state directly?

Using selectors promotes reusability and encapsulation. They can also optimize performance by memoizing results, which is beneficial in larger applications.