React Interview Questions and Answers

Asking the right questions during an interview is a delicate balance. You want to get to know the person you're speaking to, but at the same time, you don't want to make them feel like they're under a microscope. With that in mind, there are certain questions that are particularly important to ask when you're hiring for React developers.

To help you out, we've compiled a list of the most important react interview questions 2022. Make sure to ask these during your next interview and you'll be on your way to finding the perfect React developer for your

React Interview Questions for Junior Developer

If you're looking to hire a Junior React Developer, you'll want to first assess their skills and knowledge with these react interview questions for experienced candidates!

1. What is React?
2. What is a react component?
3. What is the difference between a stateless and stateful component in React?
4. What are the benefits of using React over other frameworks?
5. How would you create a simple React component?
6. What is a react element?
7. What is the difference between a react element and a react component?
8. How would you create a stateful component in React?
9. What are the lifecycle methods of a React component?
10. What is the use of shouldComponentUpdate() in React?

React Interview Questions for Intermediate Developer

These experienced react js developer interview questions are perfect if you’re looking to improve your hiring process. By knowing the right questions to ask, you can assess a candidate’s experience and skills in React.

1. What is your biggest accomplishment while working with React?
2. What do you think makes React stand out compared to other front-end frameworks?
3. What is your biggest challenge while working with React?
4. How would you go about solving a problem with a complex React application?
5. Have you ever had to debug a complex React application? If so, how did you go about it?
6. What are some of the best practices that you follow while working with React?
7. What are some of the challenges that you have faced while working withReact in the past?
8. How do you think React has helped you grow as a developer?

React Interview Questions for Senior Developer

If you're looking to hire a senior React developer, you'll need to make sure they're familiar with the technology and can answer common interview questions.

Here are 10 senior react interview questions:

1. What is the difference between a Class component and a Functional component in React?
2. What is the purpose of render() in React?
3. Explain the difference between state and props in React.
4. What are the lifecycle methods of a React component?
5. How would you create a simple React component?
6. What is a higher-order component in React?
7. What are the advantages of using JavaScript for building user interfaces?
8. How would you use an external library in your React project?
9. Have you ever faced any problems when working with React? If so, how did you solve them?
10. What is the difference between a presentational component and a container component?

Conclusion

React is a great framework for building front-end web applications. The concept of virtual DOM, reusable components, and one-way data binding make it an ideal choice for developers who want to build fast and scalable web applications.

If you're looking for a React developer to build your next web application, be sure to ask them the react interview questions 2022 in this article. With the right answers, you'll be able to identify the ideal candidate for your project.

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