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 are portals in react?

477

How are actions defined in redux?

444

List down the components of redux?

436

What are the popular packages for animation?

453

Why you can’t update props in react?

405

How can we find the version of react at runtime in the browser?

610

What is the purpose of push() and replace() methods of history?

425

What is the use of react-dom package?

415

What are the different phases of react component’s lifecycle?

565

What are fragments?

462

How do you apply vendor prefixes to inline styles in react?

509

Explain the lifecycle methods of react components in detail?

418

What is the recommended way for naming components?

384

What are the popular react-specific linters?

373

How to enable production mode in react?

476

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Un-Answered Questions { React.js }

What are the main features of react intl?

387

What is ReactDOM and what is the difference between ReactDOM and React?

467

When should you use the top-class elements for the function element?

396

What is React.PropTypes?

456

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

453

Give me two most significant drawbacks of React?

382

How is redux different from flux?

404

Can you explain about the standard javascript toolchain, transpilation, jsx?

368

What is REFS in React

356

How React works? How Virtual-DOM works in React?

479

How do you do type check in ReactJS?

448

What is an event in react?

402

What is React.createClass?

381

Explain the term synthetic events?

538

List some features of reactjs?

352

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