React Interview Questions - Coding Interview 2023

Prepare for next React coding interview by doing practice questions. Learn React skills & concepts.

Enroll in Course

By the end of this course you'll be able to:

Be very well prepared for any React programming interviews you will have
Excel in a wide variety of React interview questions that you could be asked in an interview
Strengthen you React programming skills and your knowledge of important React concepts
Learn the skills, concepts, and techniques necessary to excel in React coding interviews
Learn what programming interviews are like and what kind of questions to expect
Feel very confident going into any React programming interviews you will have

What you will learn:

Basic React concepts
Advanced React concepts
How does React work?
State management in React
Performance optimisations
Understanding all hooks
Writing custom hooks
Protecting routes with guards
Understanding React project structure

Who is this course for?

Anyone who is looking for a job as a programmer
Anyone who is looking for a job as a web developer
Anyone who will be interviewing for a programming or web developer job
Anyone who wants to strengthen their React skills and knowledge

Prerequisites:

Basic React knowledge

Hi, I’m Oleksandr Kocherhin

I am a full-stack developer with a passion for learning and teaching what I know. I have been programming for around 10 years and teaching for almost 6 years.

I believe in learning through doing and this philosophy is present in every course that I teach. I love exploring new web & mobile technologies and my courses focus on giving you the edge in our fast-moving industry.

Curriculum

Introduction

Pros and Cons of React

(02:16)

Preview

How to create React application?

I prepared source code for you

Basic Knowledge

Why do we use className and not class?

(01:07)

Preview

What are functional components and props?

(03:31)

Preview

What are class components, props and state?

(05:13)

Start

What are dumb vs smart components?

(01:34)

Start

What is a key index map?

(03:27)

Start

What is React.Fragment?

(03:38)

Start

What is conditional rendering in React?

(04:50)

Start

How to apply styles in React?

(06:21)

Start

How parent child communication is working in React?

(04:33)

Start

Advanced Knowledge

What is useState hook?

(10:44)

Start

What is useEffect hook?

(11:18)

Start

What is useReducer hook?

(10:47)

Start

What is useContext hook?

What is useMemo hook?

(08:24)

Start

What is useCallback hook?

(07:54)

Start

Write React custom hook useFetch

(12:57)

Start

Write React custom hook useLocalStorage

(06:05)

Start

React.memo - rendering optimisation in React

(06:47)

Start

What is the best React file structure?

(06:16)

Start

How does React router work?

(13:30)

Start

What is React portals?

(08:00)

Start

What is React lazy and React suspense?

(05:14)

Start

How does Typescript work in React?

(09:24)

Start

What are high order components? (HOC)

(08:53)

Start

Write an example of form inside React

(04:32)

Start

Why does strict mode renders twice in React?

(02:24)

Start

Do I need to rewrite all my class components with hooks?

(02:59)

Start

Can you force a component to re-render without calling setState?

What is server side rendering in React?

State management

How Redux works in plain Javascript?

(11:16)

Start

How does Redux work together with React?

(13:04)

Start

How does Redux toolkit work?

Homework

Frequently Asked Questions

There are lots of free tutorials out there. Why should I pay for this course?

Free tutorials are free for a reason. They are often short, lacking information or focus only on small topic and once you finish one tutorial, you'll be left in an ocean of free tutorials. You don't know what to read next. By enrolling in this course, you'll be assured that you're on a learning path that I've carefully created for you based on my more than 10 years of programming and teaching experience. You won't waste time jumping from one tutorial to another.

When does the course start and finish?

The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.

How long do I have access to the course?

How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.

What if I am unhappy with the course?

I would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

30-Day Money-Back Guarantee

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