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

React.js Interview Questions

Questions Answers Views Company eMail

Explain dom diffing?

347

what is the usage of refs and keys used in react?

408

Give me two most significant drawbacks of React?

331

State the difference between React JS and React Native

483

What are the major issues of using MVC architecture in React?

462

What is the Current Stable Version of React?

384

What is ‘create-react-app’?

352

Does React use HTML?

421

What is the use of ‘prop-types’ library?

407

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

433

What is Context?

337

What is the use of empty tags <> ?

351

What is the second argument that can optionally be passed to setState and what is its purpose?

477

Define the term Redux in React

372

How is react router different from conventional routing?

512

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Un-Answered Questions { React.js }

What are the benefits of using react.js?

410

What is Children?

324

What do you understand by refs in react?

333

How is reactjs different from angular and vue js?

414

What is the difference between super() and super(props)?

413

What is the life cycle of reactjs components?

350

What is low-level component lifecycle in react.js?

388

what are the limitations of react?

496

What is PureComponent? When to use PureComponent over Component?

415

Explain the lifecycle methods of react components in detail?

377

Explain the use of the arrow function in React

372

How can a browser read JSX file?

344

does reactjs use html?

332

Which feature can we use to cause a component to render only when its id changes?

485

How is react different from angular?

379

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