Have you used RTK when working with Redux?

Yes, RTK (Redux Toolkit) is the official set of tools for more convenient and efficient work with Redux. It simplifies store setup, reducer and action creation, and also includes useful utilities.

Using RTK allows you to write less boilerplate code and reduces the likelihood of errors. For example, with the createSlice function, you can define a reducer and actions simultaneously:

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

const counterSlice = createSlice({
  name: 'counter',
  initialState: 0,
  reducers: {
    increment: state => state + 1,
    decrement: state => state - 1
  }
});

export const { increment, decrement } = counterSlice.actions;
export default counterSlice.reducer;

RTK also includes createAsyncThunk for convenient handling of asynchronous operations.

Thus, RTK significantly simplifies working with Redux and is recommended for use in modern projects.