Here, we import the Provider component from react-redux and pass our Redux store as a prop. Wrapping the App component with the Provider component allows all child components to access the Redux store. The useSelector hook is used to extract data from the Redux store in functional components.

April 14, 2022 - Before, we had to import connect() from react-redux and wrap our components with it in order to map state to props and map dispatch to props. The equivalent of map state to props is useSelector. It takes in a function argument that returns the ...

Starter project for React apps that exports to the create-react-app CLI.

December 12, 2021 - If you are about to use React-Redux hooks in an existing Redux application, you will have to consider the following modifications. We can now let the components to dispatch their corresponding actions. For example, the MenuItemToggleComponent will dispatch the toggleItem action while the ButtonComponent will dispatch the saveItem and deleteItem actions. Replacing our “connect()” with hooks “useSelector()” and “useDispatch().” It is not necessary to connect all the components in the hierarchy to the store.

December 18, 2019 - Secondly, the selector function used to select state slices will not be cached, unless you provide a second argument to the useSelector(). This second argument is an array of values that whenever changed, the selector function will be re-computed. If your selector function is dependent on other variables besides the state , then you need to add these variables as the second argument to this hook in the form of an array.

October 20, 2021 - Simply put, useSelector makes life unnecessarily difficult due to coupling. Consider a user profile page that displays data from the redux store. // UserProfilePage.tsx import React from "react"; import { useSelector } from "react-redux"; import type { State } from "./Store"; export function UserProfilePage() { const user = useSelector((state: State) => state.user); return ( <div> Name: <span data-testid='name'>{user.firstName} {user.lastName}</span> <br /> Occupation: <span data-testid='occupation'>{user.occupation}</span> <br /> Hobbies: <span data-testid='hobbies'>{user.hobbies.join(', ')}</span> <br /> </div> ); }

July 31, 2025 - Using useSelector in the Redux Toolkit is very easy. Import useSelector from react-redux first. Then, in your React component, call useSelector and pass the function to it. This function accepts the state as an argument. You return the portion of the state you would like to use.

May 25, 2021 - I have been using connect to wrap my components, map state to props, and map dispatch to props and now that can be done using hooks?! So I went and tried it with a simple counter app and in this post, I will explain how the useSelector and useDispatch hooks work with React and Redux.

June 22, 2024 - We have wrapped the App component with the Provider from react-redux and given the store created by us previously. After which simply implement the useSelector hook to get the value from the global store in redux.

February 11, 2026 - From there, you may import any of the listed React Redux hooks APIs and use them within your function components. type RootState = ReturnType<typeof store.getState> type SelectorFn = <Selected>(state: RootState) => Selected type EqualityFn = (a: any, b: any) => boolean export type DevModeCheckFrequency = 'never' | 'once' | 'always' interface UseSelectorOptions { equalityFn?: EqualityFn devModeChecks?: { stabilityCheck?: DevModeCheckFrequency identityFunctionCheck?: DevModeCheckFrequency } } const result: Selected = useSelector( selector: SelectorFn, options?: EqualityFn | UseSelectorOptions )

The useSelector hook is a custom hook provided by React-Redux to access the Redux store's state within functional components. It takes a selector function as its argument, which extracts a specific piece of data from the store's state.

July 14, 2024 - It offers a streamlined and efficient way to access the state within React components. The simplification of reading from the store can lead to more readable, maintainable, and performant React applications.

July 23, 2025 - ... useSelector is a hook provided by React Redux that allows functional components to extract and access data from the Redux store. It subscribes to the Redux store, and whenever the store is updated, the component re-renders to reflect the changes.

November 25, 2019 - Until now, all of our code was very similar to using React and Redux with no hooks, but now things are going to start changing a little bit and we are going to take away some of the code abstraction of writing Redux code and make possible to read and dispatch (send) data from the store a lot easier from any functional component. Let’s start by importing useSelector from the react-redux library.

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October 18, 2023 - The useSelector hook is a feature provided by the React-Redux library that allows React components to access the state stored in a Redux store. It is a replacement for the traditional mapStateToProps function used in class-based components.

Hooks are functions that let function ... UseSelector() is a custom hook included in the React Redux library, and it is used to extract data from the Redux store state for use in a React component....

June 11, 2021 - Almost like ‘selecting’ which part of the state you want! useSelector works similar to mapStateToProps in Redux, which also returns an object of the data that the connected component needs. useSelector can return any data, not just an object, ...

April 22, 2024 - With useSelector, you can select ... In the ecosystem of React Redux, useSelector is a hook that plays a pivotal role in allowing your React components to select data ......

October 17, 2021 - According to the React-Redux docs, useSelector is the approximate equivalent to mapStateToProps argument to connect, and that it will be called with the entire Redux store state as its only argument.