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

React.js Interview Questions

Questions Answers Views Company eMail

Give an example of both stateless and stateful components with source code?

415

How to embed two components in one component?

403

What is flux concept in reactjs?

401

How to use events in reactjs?

379

What are the advantages of using jsx?

419

What are the advantages of using reactjs?

463

How to use forms in reactjs?

416

What are the life cycle of reactjs?

386

When reactjs released?

399

What is current stable version of reactjs?

550

What are state and props in reactjs?

455

What are the feature of reactjs?

568

How to set focus in reactjs?

381

What are the purpose of render() in react?

384

Why do we need a router in reactjs?

378

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Un-Answered Questions { React.js }

Explain strict mode

395

Explain the limitations of react?

370

How Virtual-DOM is more efficient than Dirty checking?

432

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

532

What are keys in reactjs and why are they important?

428

What is the differnece between real dom and virtual dom?

391

Why are browsers unable to read jsx?

413

What are refs in react and why are they important?

379

What is the use of React.Children.map(props.children, () => )?

394

What are the popular libraries used for flux?

510

What is the purpose of using bindActionsCreators?

385

What is the difference between angularjs vs react.js?

497

Which is best react or angular?

369

Why should I use react js?

359

What are pure components?

352

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