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React.js Interview Questions
Questions Answers Views Company eMail

Explain dom diffing?

416

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

483

Give me two most significant drawbacks of React?

409

State the difference between React JS and React Native

583

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

548

What is the Current Stable Version of React?

474

What is ‘create-react-app’?

421

Does React use HTML?

492

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

510

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

540

What is Context?

407

What is the use of empty tags <> ?

433

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

566

Define the term Redux in React

438

How is react router different from conventional routing?

621


Post New React.js Questions

Un-Answered Questions { React.js }

What is the difference between shadow dom and virtual dom?

512


What is lazy loading react?

444


What are the component life cycle methods in reactjs?

503


What are stateless components in reactjs?

424


What is the use of empty tags <> ?

433


What is the difference between real dom and virtual dom.

459


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

483


Can JSX element be attached to other JSX components?

424


Explain pure components in React js?

410


When rendering a list what is a key and what is it's purpose?

412


What are state and props in reactjs?

489


What are the advantages of using reactjs?

506


why can’t browsers read jsx?

417


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

663


What is the difference between stateful and stateless components.

523