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?

387

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?

343

What is the difference between flux vs mvc?

394

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

319

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

466

What are the benefits of using react.js?

404

What are react component lifecycle methods?

391

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

286

What are the advantages and disadvantages of using react components?

401

How to set up routing in reactjs?

365

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

356

What is the difference between various react component lifecycle methods?

396

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

369

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

312

Have you used html while working with react.js?

325

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Un-Answered Questions { React.js }

What is the difference between state and props?

368

How to apply validation on props in reactjs? Apply validation in previously developed example in above question?

348

What is the component lifecycle in reactjs?

385

What is a higher order component?

346

What is reactjs-jsx? What are the advantages of using jsx? Explain basic code snippet of jsx with the help of a practical example?

321

Difference between constructor and getInitialState ?

356

What is the difference between setstate() and forceupdate()?

337

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

325

What is react.js? How is it different from other javascript frameworks?

392

How do you apply vendor prefixes to inline styles in react?

446

What is repository url of reactjs?

366

Give me two most significant drawbacks of React?

322

Explain the limitations of react?

338

Why reactjs is used?

336

Name two types of React component?

383

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