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 arrow functions?

240

What is the difference between reactjs and angularjs?

253

How can we build react in production mode?

224

What is “forward refs”?

248

What is the difference between createelement and cloneelement?

251

What is the differnece between real dom and virtual dom?

248

What is meant by pooling?

268

What is the purpose of render() in react?

257

What are arrow functions? How are they used?

269

What are controlled and uncontrolled components?

268

How it is different from other front end language?

225

What is function based component?

250

How do you embed two components in one component?

218

What is low-level component lifecycle in react.js?

244

What is reactjs-jsx? What are the advantages of using jsx? Explain basic code snippet of jsx with the help of a practical example?

231

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Un-Answered Questions { React.js }

How do you create an event in react?

244

What are the difference between pros and state?

253

What is an Action? How do you describe an Action?

283

Is it possible to use the word class in jsx?

220

What are the benefits of using react.js?

251

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

299

What are state and props in reactjs? What is the difference between the two?

244

Explain the components of Redux?

290

List down the components of redux?

314

Why vue js is better than react?

231

Explain the difference between functional and class components.

249

Explain the use of ‘key’ in react list

269

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

337

What is the difference between stateful and stateless components.

270

Why reactjs is used?

256

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