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

React.js Interview Questions

Questions Answers Views Company eMail

Name any five predefined prototypes used in React

1 907

What is the difference between React Native and React?

451

What is Context in React?

372

How can you share an element in the parsing?

407

How to set state with a dynamic key name?

423

what are the limitations of react?

549

Ho can you re-render a component without using setState() function?

431

Explain basic code snippet of jsx with the help of a practical example?

379

What is the difference between the state and props in reactjs?

446

What are the advantages of reactjs?

374

How to apply validation on props in reactjs?

451

What is reactjs-jsx?

387

What are components in reactjs?

388

Give an example of using events?

384

What are the limitations of reactjs?

532

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Un-Answered Questions { React.js }

What are controlled and uncontrolled components in React?

369

What are portals in react?

479

Explain react hooks?

377

What are the lifecycle steps of React?

445

What are fragments?

464

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?

384

What do you understand by virtual dom?

378

What is jsx and how jsx can help applications in react.js?

534

What is the difference between react components extend, createclass and mixins, hocs?

369

What is the main goal of react fiber?

360

Explain the purpose of render() in react.

390

What are stateless components in reactjs?

395

What is the difference between npm & npx?

475

What are the advantages of using reactjs?

463

Why is react so popular?

344

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