Selectors
Selectors are functions that compute derived data from the Redux store state. They efficiently extract specific pieces of state for components, reducing the amount of unnecessary rendering. Selectors are particularly useful in large-scale applications with complex state structures.
Syntax:
import { createSelector } from 'reselect';
const selectItems = state => state.items;
export const selectFilteredItems = createSelector(
[selectItems],
items => items.filter(item => item.completed)
);
How can you optimize the performance of React-Redux applications?
Performance optimization in React-Redux involves improving the speed, efficiency, and responsiveness of applications by minimizing rendering times, reducing unnecessary re-renders, and optimizing data fetching and processing. By implementing optimization techniques, you can enhance the overall user experience and ensure that applications run smoothly even under heavy loads.
Below are the methods by which we can optimize the performance in a react-redux application.
Table of Content
- Memoization
- Selectors
- Redux Toolkit
- Code Splitting
- Virtualized Lists
- Server-side Rendering