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 is an event in react?

402

What are the lifecycle methods going to be deprecated in react v16?

391

How do you tell react to build in production mode and what will that do?

427

How to use https instead of http in create-react-app?

448

How events are different in react?

434

What is react intl?

601

What are the three principles that redux follows?

396

What do you understand by “single source of truth”?

373

What is the significance of keys in react?

550

What are pure components?

348

What is arrow function in react?

434

How react router is different from history library?

507

Is it possible to use async/await in plain react?

372

Differentiate between stateful and stateless components?

371

What were the major problems with mvc framework?

473

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Un-Answered Questions { React.js }

How events are different in react?

434

What are arrow functions? How are they used?

384

Can you update the values of props?

384

What kind of information controls a segment in React?

678

What do you understand by virtual dom?

376

Difference between constructor and getInitialState ?

403

What is unidirectional data flow? How does data flow happening in Redux?

402

When was React first released?

407

Name two types of React component?

427

Why are browsers unable to read jsx?

411

What is the reduction?

330

List down some of the methods in a react-dom package

368

How can a browser read JSX file?

387

How is react.js different from other javascript frameworks?

440

How to set up routing in reactjs. Explain with the help of step by step approach?

345

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