Performance Optimized React Applications
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Performance Optimized React Applications

Tips on how to optimize React Apps for better performance

About the Book

This book assumes you have a previous knowledge about web and application development,also some familiarity with React. The book offers some tips and suggestions to better optimise your React applications.

You are going to learn some use of third party libraries and built-in APIs to improve the performance of your React applications.

The content of the book is presented across the following Chapters:

Chapter 1: Performance as a default with Next.js

Chapter 2: Route prefetching in Next.js

Chapter 3: Code splitting with dynamic imports in Next.js

Chapter 4: How AMP can guarantee fastness in your Next.js app

Chapter 5: Get started: optimize your React app

Chapter 6: Code splitting with React.lazy and Suspense

Chapter 7: Virtualize large lists with react-window

Chapter 8: Precaching in Create React App with Workbox

Chapter 9: Pre-render routes with react-snap

Chapter 10: Add a web app manifest with Create React App

Chapter 11: Accessibility auditing with react-axe and eslint-plugin-jsx-a11y

Chapter 12: Speed up navigations in React with Quicklink

Check out other recommended books:

React Hooks

Git For Professionals

Javascript Challenges

VueJS Documentation

Programming in Golang

ReactJS Documentation

Your First Tech Interview

Appwrite Up and Running

Python Flask for Beginners

Frontend Developer Interview Questions

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How do I optimize my React app?

Some ways to optimize the performance of react js apps might include:

  1. Using Immutable Data Structures.
  2. Function/Stateless Components and React.
  3. Multiple Chunk Files.
  4. Avoid Inline Function Definition in the Render Function.
  5. Throttling and Debouncing Event Action in JavaScript.
  6. Avoid using Index as Key for map.

What makes Reactjs performance faster?

Using immutable data is one of the best ways to improve react js apps performance, Immutable data allows you to compare direct object references instead of doing deep-tree comparisons thus making the app really fast.

Can lazy loading make react js apps better optimized ?

In essence, lazy loading means that a component or a part of code must get loaded when it is required. It is also referred to as code splitting and data fetching . Talking about React specifically, it bundles the complete code and deploys all of it at the same time.

What is used in React JS to increase performance?

React. memo() boosts the performance of a React app by avoiding re-rendering components whose props haven't changed or when re-rendering is not needed.

About the Author

Alejandro Garcia
A.J. García

I started my coding career back in 2003. Lately I've been involved a lot in Javascript for frontend and the backend.

I would love passing along to you some of the experiences and challenges I've faced over the years.

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Table of Contents

  • This Book
    • Recommended Resources
    • Recommended Books
  • Chapter 1: Performance as a default with Next.js
    • What will you learn?
    • How is Next.js different from React?
    • Setting up
  • Chapter 2: Route prefetching in Next.js
    • The <Link> component
    • How automatic prefetching works
    • Avoid unnecessary prefetching
    • Prefetching with custom routing
    • Conclusion
  • Chapter 3: Code splitting with dynamic imports in Next.js
    • Route-based and component-based code splitting
    • Dynamic imports in action
    • Dynamic imports with custom loading indicator
    • Dynamic imports without SSR
    • Conclusion
  • Chapter 4: How AMP can guarantee fastness in your Next.js app
    • How AMP guarantees fast page loads
    • How you can use AMP in Next.js
    • How to decide whether to use the Hybrid AMP or AMP-only approach
    • Conclusion
  • Chapter 5: Get started and optimize your React app
    • Why is this useful?
    • What will you learn?
    • Create React App
  • Chapter 6: Code splitting with React.lazy and Suspense
    • Why is this useful?
    • Suspense
    • Suspending multiple components
    • Handle loading failures
    • Conclusion
  • Chapter 7: Virtualize large lists with react-window
    • Why is this useful?
    • react-window
    • Lazy loading on scroll
    • Overscanning
    • Conclusion
  • Chapter 8: Precaching in Create React App with Workbox
    • Why is this useful?
    • Workbox in CRA
    • Modifying caching strategies
    • Handling a cache-first strategy
    • Conclusion
  • Chapter 9: Pre-render routes with react-snap
    • Why is this useful?
    • react-snap
    • Flash of unstyled content
  • Chapter 10: Add a web app manifest with Create React App
    • Why is this useful?
    • Modify the default manifest
    • Conclusion
  • Chapter 11: Accessibility auditing with react-axe and eslint-plugin-jsx-a11y
    • Why is this useful?
    • Use eslint-plugin-jsx-a11y
    • Use react-axe
    • Conclusion
  • Chapter 12: Speed up navigations in React with Quicklink
    • Determine chunks associated with each route
    • Prefetch chunks for in-viewport routes
    • Conclusion

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