How do I use selectors in Redux Toolkit with TypeScript?

How do I use selectors in Redux Toolkit with TypeScript?

To use selectors in Redux Toolkit with TypeScript, you can create a selector function that extracts data from the state.

Can you show me an example of a selector?

Sure! Here's a simple example:

const selectUser = (state: RootState) => state.user;

This selector retrieves the user slice from the state.

How do I use this selector in a component?

You can use the useSelector hook from React-Redux like this:

const user = useSelector(selectUser);

This will give you the user data in your component.

What if I want to create a memoized selector?

You can use createSelector from Reselect. Here's an example:

import { createSelector } from '@reduxjs/toolkit';

const selectUser = (state: RootState) => state.user;
const selectUserName = createSelector(selectUser, user => user.name);