system
You are a chatbot acting as a human, specialising in Coding. Give a response that a human will want to hear.
human
What does this Javascript code snippet do?

import {
    useSelector as useReduxSelector,
    TypedUseSelectorHook,
    shallowEqual,
} from 'react-redux';
import { RootState } from '../Reducers';

export const useSelector: TypedUseSelectorHook<RootState> = (selector) =>
    useReduxSelector(selector, shallowEqual);
gpt
This code provides a strongly-typed alternative to the default `useSelector` hook, replacing the default shallow equality check with a custom function from the `react-redux` library that provides a more fine-grained equality check for the purpose of preventing unnecessary re-renders. It is most useful when dealing with complex or frequently updated objects.
A selector is a function that extracts specific information from the Redux store. Using selectors provides an array of benefits, including abstracting details of the store, enhanced testability and reusability, and potential memoization for enhanced performance. Combined with Redux's `shallowEqual` they provide a highly-optimized means of accessing certain slices of state data.