The current Redux application state lives in an object called the store. Redux stores its application state in a plain JavaScript object called the store. The store is a single source of truth that holds the entire application state. It has a method called getState that returns the current state value import { configureStore } from '@reduxjs/toolkit' const store = configureStore({ reducer: counterReducer }) console.log(store.getState())

What is the store?

Difficulty: 5/10

Redux store, state management, middleware

1
The current Redux application state lives in an object called the store. Redux stores its application state in a plain JavaScript object called the store.
2
The store is a single source of truth that holds the entire application state.
3
It has a method called getState that returns the current state value

javascript

Scenario Questions

0-2 years experience

1How would you set up a Redux store for a simple counter component that only needs increment and decrement actions?
2What happens if you dispatch an action before the store has been created, and how would you prevent that?

2-5 years experience

1You added a new feature that updates a user's profile in the store, but the UI never shows the new data. Walk me through how you would debug the issue.

Follow-up Questions

Can you sketch the minimal code for creating that store?
What are the trade‑offs of putting async logic in reducers versus middleware?
How would you verify that your store changes are correctly reflected in the UI?