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React Interview Guide

React Interview Guide

By : Sudheer Jonna, Andrew Baisden
4.3 (6)
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React Interview Guide

React Interview Guide

4.3 (6)
By: Sudheer Jonna, Andrew Baisden

Overview of this book

Are you struggling with React job interviews, feeling hindered by the lack of knowledge or confidence? Look no further than the React Interview Guide. Complete with the latest features of the React library, this comprehensive solution will assist you in taking a definitive step forward in your career as a React developer. This book systematically covers frequently asked questions and common edge cases encountered in React interviews. It goes beyond React to encompass other essential technologies in the React ecosystem, including routing, CSS, testing, and building Next.js apps. You’ll benefit from invaluable expert guidance, enabling you to address a wide range of React ecosystem questions swiftly as this book prioritizes interview readiness, sparing you the need to dwell excessively on individual topics before technical discussions. By the end of this book, you’ll be thoroughly equipped to excel in any React interview, giving you an edge over your peers and significantly increasing your chances of securing your dream job.
Table of Contents (19 chapters)
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1
Part 1: Getting Ready for Interviews
3
Part 2: Mastering the Core React Technical Interview
8
Part 3: Going Beyond React and Advanced Topics
13
Part 4: Hands-On with Programming Tasks

Optimizing rendering performance using concurrent rendering

React 18 introduced the concurrent renderer, which makes the rendering process asynchronous and ensures it can be interrupted, paused, resumed, and even abandoned. As a result, React can respond to user interactions quickly, even if it is in the middle of a heavy rendering task.

New features such as suspense, streaming server rendering, and transitions are powered by concurrent rendering.

How do you enable concurrent rendering in React?

First, you need to update both the react and react-dom packages to version 18. After that, you need to replace the deprecated ReactDOM.render method with the ReactDOM.createRoot method. Concurrent rendering will be enabled automatically in whichever parts of your application you use concurrent features such as suspense, streaming server rendering, and transitions.

As the application becomes complex, you need to spend a significant amount of time analyzing the application’...

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