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 what is CSS-in-JS pattern?

403

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

453

Is it possible in React to call the Child method from Parent?

401

Can a developer create animations in React?

414

How can I make an AJAX call?

444

What is React.PropTypes?

456

Name two types of React component?

427

What are Props in react js?

414

What a setState is doing?

498

What is the difference between a function in setState or passing an object?

378

Can you force a React component to rerender without calling setState?

393

What is Redux Thunk used for?

402

Difference between constructor and getInitialState ?

403

Do you need to use ES6 (+) with React?

413

What is React State?

463

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Un-Answered Questions { React.js }

List down the advantages of react router?

418

What are the lifecycle methods of reactjs components?

371

How different is react’s es6 syntax when compared to es5?

444

What is the significance of store in redux?

398

What are the differences in between real dom and virtual dom?

480

What do you understand with the term polling?

405

What is the use of arrow function in reactjs?

402

What is the difference between stateless and stateful component?

430

What are stateless components in reactjs?

387

What are the key benefits of reactjs development?

413

Why are browsers unable to read jsx?

411

What is controllable component in reactjs?

399

What is jest?

431

How is reactjs different from angular and vue js?

460

What is react fiber?

399

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