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

React.js Interview Questions

Questions Answers Views Company eMail

How is react.js different from other javascript frameworks?

440

What is flux concept in reactjs? Explain various flux elements including action, dispatcher, store and view. Give a simple practical example of installing and using flux in an application?

384

What is the difference between flux vs mvc?

447

How to use forms in reactjs? Give an example of using forms in reactjs by developing a user registration form?

361

What kind of tools might you use in the build steps to optimize the compiled output of the react code?

526

What are the benefits of using react.js?

454

What are react component lifecycle methods?

442

When would you use setstate() and forceupdate()?

327

What are the advantages and disadvantages of using react components?

463

How to set up routing in reactjs?

419

How might react handle or restrict props to certain types, or require certain props to exist?

403

What is the difference between various react component lifecycle methods?

451

What is redux and flux? When do you use them?

403

Explain various flux elements including action, dispatcher, store and view. Give a simple practical example of installing and using flux in an application?

356

Have you used html while working with react.js?

367

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Un-Answered Questions { React.js }

What is react fiber?

399

How is flux different from redux?

396

Is react a mvc framework?

382

Explain the components of Redux?

419

What can be done when there is more than one line of expression?

488

What do you know about controlled and uncontrolled components?

352

What is shouldcomponentupdate and when is used in react.js?

408

What is jsx and how jsx can help applications in react.js?

532

What is Babel in React js?

389

What is flux concept in reactjs? Explain various flux elements including action, dispatcher, store and view. Give a simple practical example of installing and using flux in an application?

384

What is React State?

463

Please explain step by step approach on how to setup environment for reactjs?

370

How can we build react in production mode?

360

How to enable production mode in react?

476

What is the difference between using constructor vs getInitialState in React?

466

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