React.js Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

React.js Interview Questions

Questions Answers Views Company eMail

What are the differences in between real dom and virtual dom?

512

What are the differentiate between stateful and stateless components?

488

What is uncontrollable component in reactjs?

438

How to update the state of the component in reactjs?

427

What are the components in flux architecture?

428

What is difference between setstate and forceupdate () and finddomnode () in reactjs?

428

What is repository url of reactjs?

440

In which lifecycle event do you make ajax requests and why?

422

Is it possible to display props on a parent component?

445

What is higher order components (hoc)?

413

How to use loop in reactjs?

497

What are the methods called when component is created or while inserting it to dom?

388

What are refs in react and why are they important?

412

What are refs in reactjs?

416

What is the use of arrow function in reactjs?

439

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Un-Answered Questions { React.js }

What are the differentiate between stateful and stateless components?

488

How is react router different from conventional routing?

617

Is it possible to nest jsx elements into other jsx elements?

425

What are the major issues of using MVC architecture in React?

546

What is the use of a super keyword in React?

415

How can we build react in production mode?

390

How can you update state in react js?

496

Explain the meaning of Mounting and Demounting

411

What are the advantages and disadvantages of using react components?

502

What are the advantages of react router.

397

What are the difference between pros and state?

500

When would you use a class component over a functional component?

428

Can you update the values of props?

425

Explain the components of Redux?

451

Do you need to use ES6 (+) with React?

455

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