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?

368

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

360

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

393

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

404

How events are different in react?

397

What is react intl?

544

What are the three principles that redux follows?

360

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

341

What is the significance of keys in react?

492

What are pure components?

309

What is arrow function in react?

400

How react router is different from history library?

456

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

349

Differentiate between stateful and stateless components?

342

What were the major problems with mvc framework?

443

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Un-Answered Questions { React.js }

What do you understand with the term polling?

368

What is import in react?

367

What are the advantages of using jsx?

379

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

377

Show how the data flows through redux?

332

What is the use of empty tags <> ?

351

How can we build react in production mode?

339

How to set state with a dynamic key name?

388

Differentiate between states and props.

366

Explain the meaning of Mounting and Demounting

322

Explain the Presentational segment

436

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

349

Explain the components of Redux?

382

What is function based component?

354

When reactjs released?

355

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