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 React?

271

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

357

What are the pros and cons of using React?

295

What is JSX?

259

What is React.createClass?

276

What is React.createElement?

291

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

348

What is the difference between a Presentational component and a Container component?

276

What are the differences between a class component and functional component?

276

What is the difference between state and props?

293

Name the different React lifecycle methods.

317

Where in a React component should you make an AJAX request?

328

What are controlled components?

262

What are refs used for in React?

272

What is a higher order component?

276

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Un-Answered Questions { React.js }

What are the lifecycle methods going to be deprecated in react v16?

268

What are the features of react?

305

List down the components of redux?

326

What is react.js? How is it different from other javascript frameworks?

279

What is repository url of reactjs?

262

How to use https instead of http in create-react-app?

287

What is one of the core types in react?

264

Explain react hooks?

251

What is difference between setstate and forceupdate () and finddomnode () in reactjs?

259

Explain the major advantages of react.

265

How to install react js on your local machine?

287

What is the difference between npm & npx?

343

What is the difference between React Native and React?

277

What are the components in flux architecture?

280

Have you used html while working with react.js?

240

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