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 the main difference between createElement and cloneElment?

449

What is the main goal of react fiber?

393

Why do you need to use props.children?

397

What are reacted portals?

414

Explain the meaning of Mounting and Demounting

411

What is the purpose of using bindActionsCreators?

419

How can a browser read JSX file?

425

What is the reduction?

368

What is REFS in React

395

What is the use of Webpack?

406

State the difference between getIntialState() and constructor()?

387

What is react fiber?

432

How to pass a parameter to an event handler or callback?

456

Can you update the values of props?

425

Explain the term reconciliation?

406

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Un-Answered Questions { React.js }

What is function based component?

429

What is reactjs-jsx?

419

Does React re-render all components and sub components every time setState is called?

465

What is repository url of reactjs?

440

What are synthetic events?

406

What is import in react?

428

What is React.createClass?

415

Can you update the values of props?

425

Is react a mvc framework?

422

What is the Current Stable Version of React?

471

How is flux different from redux?

437

How can you spill the reducers?

907

What is the use of a super keyword in React?

415

What is React.createElement?

450

What are synthetic events in react?

452

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