Skip to content
geeksforgeeks
  • Courses
    • DSA to Development
    • Get IBM Certification
    • Newly Launched!
      • Master Django Framework
      • Become AWS Certified
    • For Working Professionals
      • Interview 101: DSA & System Design
      • Data Science Training Program
      • JAVA Backend Development (Live)
      • DevOps Engineering (LIVE)
      • Data Structures & Algorithms in Python
    • For Students
      • Placement Preparation Course
      • Data Science (Live)
      • Data Structure & Algorithm-Self Paced (C++/JAVA)
      • Master Competitive Programming (Live)
      • Full Stack Development with React & Node JS (Live)
    • Full Stack Development
    • Data Science Program
    • All Courses
  • Tutorials
    • Data Structures & Algorithms
    • ML & Data Science
    • Interview Corner
    • Programming Languages
    • Web Development
    • CS Subjects
    • DevOps And Linux
    • School Learning
  • Practice
    • Build your AI Agent
    • GfG 160
    • Problem of the Day
    • Practice Coding Problems
    • GfG SDE Sheet
  • Contests
    • Accenture Hackathon (Ending Soon!)
    • GfG Weekly [Rated Contest]
    • Job-A-Thon Hiring Challenge
    • All Contests and Events
  • React Tutorial
  • React Exercise
  • React Basic Concepts
  • React Components
  • React Props
  • React Hooks
  • React Router
  • React Advanced
  • React Examples
  • React Interview Questions
  • React Projects
  • Next.js Tutorial
  • React Bootstrap
  • React Material UI
  • React Ant Design
  • React Desktop
  • React Rebass
  • React Blueprint
  • JavaScript
  • Web Technology
Open In App
Next Article:
Explain the concept of Redux in React.
Next article icon

Explain Selectors in React Redux

Last Updated : 08 Feb, 2024
Comments
Improve
Suggest changes
Like Article
Like
Report

Selectors in React Redux serve as efficient filters for accessing specific data from the Redux store. They encapsulate logic for data retrieval, optimizing performance, and promoting code reusability. By using memoization, selectors cache results to prevent unnecessary re-renders, thus enhancing overall application efficiency. They make efficient in the process of accessing and transforming data, contributing to improved development efficiency and code quality.

Selectors in React Redux:

  • Data Extraction: Selectors are functions that extract specific pieces of data from the Redux store.
  • Abstraction Layer: They act as an abstraction layer between your components and the store, making it easier to access and manipulate data.
  • Memoization: Selectors are memoized, meaning they cache the results of their computations. This improves performance by preventing unnecessary re-renders when the same data is requested multiple times.
  • Encapsulation of Logic: They encapsulate any logic needed to derive derived data from the store, such as filtering, sorting, or combining multiple pieces of data.
  • Reusability: Selectors promote code reusability by allowing you to define data retrieval logic once and reuse it across multiple components.

Advantages of Selectors in React Redux:

  • Efficient Data Retrieval: Selectors provide a streamlined way to access specific pieces of data from the Redux store without unnecessary overhead.
  • Memoization: They utilize memoization, which means that once a selector computes a value, it remembers it, avoiding unnecessary recalculations. This enhances performance by reducing redundant computations.
  • Abstraction of Logic: Selectors encapsulate logic for deriving derived data from the store. This abstraction keeps your components clean and focused, separating concerns between data retrieval and presentation.
  • Reusability: By encapsulating data retrieval logic, selectors promote code reusability. You can define selectors once and use them across multiple components, reducing code duplication and improving maintainability.
  • Testing: Selectors are easy to test since they are pure functions that take the store state as input and return derived data. This simplifies unit testing and ensures the reliability of your application's data retrieval logic.

React Redux provide efficient, memoized data retrieval, abstraction of data retrieval logic, code reusability, and simplified testing, enhancing the overall development experience.


Next Article
Explain the concept of Redux in React.

F
faheemakt6ei
Improve
Article Tags :
  • Web Technologies
  • ReactJS
  • MERN-QnA
  • WebTech-FAQs

Similar Reads

  • Redux Store in React Native
    In this article, we are going to learn about Redux Store. It is the object which holds the state of the application. The store is one of the building blocks of Redux. Redux is a state managing library used in JavaScript apps. It is used to manage the data and the state of the application.   Uses of
    5 min read
  • Explain the concept of Redux in React.
    Redux is a state management library commonly used with React, although it can also be used with other JavaScript frameworks. It helps manage the state of your application. It was inspired by Flux, another state management architecture developed by Facebook for building client-side web applications.
    3 min read
  • How to Create Store in React Redux ?
    React Redux is a JavaScript library that is used to create and maintain state in React Applications efficiently. Here React Redux solves the problem by creating a redux store that stores the state and provides methods to use the state inside any component directly or to manipulate the state in a def
    4 min read
  • How to test React-Redux applications?
    Testing React-Redux applications is crucial to ensure their functionality, reliability, and maintainability. As we know, the React-Redux application involves complex interactions between components and Redux state management, testing helps us to identify and prevent bugs, regressions, and performanc
    10 min read
  • Introduction to React-Redux
    React-Redux is a popular state management library that helps manage the application state in React applications. It is an essential tool in the React ecosystem, allowing you to efficiently handle complex state logic and data flow within large applications. React-Redux connects the Redux store to Rea
    7 min read
  • Explain Action’s in Redux
    In this article, we are going to learn about Action in Redux. Actions are plain JavaScript object that contains information. Action is one of the building blocks of Redux.  Redux is a state managing library used in JavaScript apps. It is used to manage the data and the state of the application. Uses
    5 min read
  • Action's Payload in React Redux
    In the realm of React Redux, understanding how actions and their payloads work is fundamental to efficient state management. Actions serve as messengers that convey information from your application to the Redux store, triggering state updates. Among the key components of actions is the payload, whi
    6 min read
  • Why we need Redux in React ?
    Redux is a library used in JavaScript applications for managing application states. It is particularly used and more popular in terms of building single-page applications using frameworks like React. Redux can also be used with other frameworks or libraries as well. It serves as a centralized store
    7 min read
  • React Redux Hooks: useSelector and useDispatch.
    State management is a major aspect of building React applications, allowing users to maintain and update application state predictably. With the introduction of React Hooks, managing state has become even more streamlined and efficient. Among the most commonly used hooks for state management in Reac
    4 min read
  • Why are selectors considered best practice in React Redux ?
    Redux selectors are functions that allow for efficient and structured extraction of specific data from the Redux store. They can calculate derived data, which helps Redux maintain the minimum possible state. Selectors are also efficient, as they are only recomputed if any of their arguments change.
    3 min read
geeksforgeeks-footer-logo
Corporate & Communications Address:
A-143, 7th Floor, Sovereign Corporate Tower, Sector- 136, Noida, Uttar Pradesh (201305)
Registered Address:
K 061, Tower K, Gulshan Vivante Apartment, Sector 137, Noida, Gautam Buddh Nagar, Uttar Pradesh, 201305
GFG App on Play Store GFG App on App Store
Advertise with us
  • Company
  • About Us
  • Legal
  • Privacy Policy
  • In Media
  • Contact Us
  • Advertise with us
  • GFG Corporate Solution
  • Placement Training Program
  • Languages
  • Python
  • Java
  • C++
  • PHP
  • GoLang
  • SQL
  • R Language
  • Android Tutorial
  • Tutorials Archive
  • DSA
  • Data Structures
  • Algorithms
  • DSA for Beginners
  • Basic DSA Problems
  • DSA Roadmap
  • Top 100 DSA Interview Problems
  • DSA Roadmap by Sandeep Jain
  • All Cheat Sheets
  • Data Science & ML
  • Data Science With Python
  • Data Science For Beginner
  • Machine Learning
  • ML Maths
  • Data Visualisation
  • Pandas
  • NumPy
  • NLP
  • Deep Learning
  • Web Technologies
  • HTML
  • CSS
  • JavaScript
  • TypeScript
  • ReactJS
  • NextJS
  • Bootstrap
  • Web Design
  • Python Tutorial
  • Python Programming Examples
  • Python Projects
  • Python Tkinter
  • Python Web Scraping
  • OpenCV Tutorial
  • Python Interview Question
  • Django
  • Computer Science
  • Operating Systems
  • Computer Network
  • Database Management System
  • Software Engineering
  • Digital Logic Design
  • Engineering Maths
  • Software Development
  • Software Testing
  • DevOps
  • Git
  • Linux
  • AWS
  • Docker
  • Kubernetes
  • Azure
  • GCP
  • DevOps Roadmap
  • System Design
  • High Level Design
  • Low Level Design
  • UML Diagrams
  • Interview Guide
  • Design Patterns
  • OOAD
  • System Design Bootcamp
  • Interview Questions
  • Inteview Preparation
  • Competitive Programming
  • Top DS or Algo for CP
  • Company-Wise Recruitment Process
  • Company-Wise Preparation
  • Aptitude Preparation
  • Puzzles
  • School Subjects
  • Mathematics
  • Physics
  • Chemistry
  • Biology
  • Social Science
  • English Grammar
  • Commerce
  • World GK
  • GeeksforGeeks Videos
  • DSA
  • Python
  • Java
  • C++
  • Web Development
  • Data Science
  • CS Subjects
@GeeksforGeeks, Sanchhaya Education Private Limited, All rights reserved
We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy
Lightbox
Improvement
Suggest Changes
Help us improve. Share your suggestions to enhance the article. Contribute your expertise and make a difference in the GeeksforGeeks portal.
geeksforgeeks-suggest-icon
Create Improvement
Enhance the article with your expertise. Contribute to the GeeksforGeeks community and help create better learning resources for all.
geeksforgeeks-improvement-icon
Suggest Changes
min 4 words, max Words Limit:1000

Thank You!

Your suggestions are valuable to us.

What kind of Experience do you want to share?

Interview Experiences
Admission Experiences
Career Journeys
Work Experiences
Campus Experiences
Competitive Exam Experiences