How to Implement Memoization in React to Improve Performance

by Reima Budd on Jul 11, 2022 Software 375 Views

In this tutorial, we’ll learn how to implement memoization in React. Memoization improves performance by storing the results of expensive function calls and returning those cached results when they’re needed again.

We’ll cover the following:

  • how React renders the UI
  • why there’s a need for React memoization
  • how we can implement memoization for functional and class components
  • things to keep in mind regarding memoization

This article assumes you have a basic understanding of class and functional components in React. If you’d like to brush up on those topics, check out the official React docs on components and props.

Memoization in React

How React Renders the UI

Before going into the details of memoization in React, let’s first have a look at how React renders the UI using a virtual DOM.

The regular DOM basically contains a set of nodes represented as a tree. Each node in the DOM is a representation of a UI element. Whenever there’s a state change in your application, the respective node for that UI element and all its children get updated in the DOM and then the UI is re-painted to reflect the updated changes.

Find out more about this interesting topic here.

Article source: https://article-realm.com/article/Computers/Software/24655-How-to-Implement-Memoization-in-React-to-Improve-Performance.html

Comments

No comments have been left here yet. Be the first who will do it.
Safety

captchaPlease input letters you see on the image.
Click on image to redraw.

Reviews

Guest

Overall Rating:

Statistics

Members
Members: 16680
Publishing
Articles: 78,280
Categories: 202
Online
Active Users: 475
Members: 1
Guests: 474
Bots: 13055
Visits last 24h (live): 1446
Visits last 24h (bots): 42043

Latest Comments

I recently came across your blog and have been reading along. I thought I would leave my first comment. I don't know what to say except that I have enjoyed reading. Nice blog, I will keep visiting...
I genuinely like you're making style, inconceivable information, thankyou for posting 텐바이텐  
You have a good point here!I totally agree with what you have said!!Thanks for sharing your views...hope more people will read this article!!  트랜드 도메인 주소    
Logging into your Chime account is a quick and secure process designed for instant financial access. To begin, visit the official Chime website or open the mobile app on your device. Navigate to...
on Jul 13, 2026 about Blogging
This is my first time visit to your blog and I am very interested in the articles that you serve. Provide enough knowledge for me. Thank you for sharing useful and don't forget, keep sharing...
This is my first time visit to your blog and I am very interested in the articles that you serve. Provide enough knowledge for me. Thank you for sharing useful and don't forget, keep sharing...
The sophisticated online platform for Escorts Gurgaon features intuitive filtering options that allow potential clients to narrow their search based on specific preferences and availability.  
 I particularly appreciate the emphasis on market research and prototypes. It reminds me that a well-defined product and a clear understanding of its market are crucial. Even a small invention can...
on Jul 13, 2026 about How to Start an Invention Idea
Envision a night when everything you need is provided for you without your asking a thing. Our Call Girl Rajendra Place , offer that intuitive service, and you would be well taken care of and...
Even after many failed attempts, I never felt discouraged because the energetic soundtrack and creative character designs in FNF always encouraged me to try another round.

Translate To: