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 forceUpdate()?

292

What are the lifecycle steps of React?

274

What is render() in React? And explain its purpose?

326

What is Redux?

264

How do you do type check in ReactJS?

313

Explain the Presentational segment

330

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

289

Why do we need a router in react?

297

What is SyntheticEvent?

271

What is the difference between npm & npx?

337

Explain the term high order component

254

Explain synthetic event in React js?

280

Explain the components of Redux?

292

What is PureComponent? When to use PureComponent over Component?

296

Is it possible to nest jsx elements into other jsx elements?

279

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Un-Answered Questions { React.js }

Explain yield catchphrase in JavaScript

288

What is one of the core types in react?

250

What are the features of react?

291

What do you mean by reactjs?

240

What are stateless components in reactjs?

248

State the main difference between Pros and State?

298

what are the limitations of react?

339

What is Flux Concept In React?

284

Enlist the advantages and disadvantages of reactjs?

269

What is react fiber?

288

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

245

What is React State?

283

How different is react’s es6 syntax when compared to es5?

266

What are the advantages of reactjs?

263

What is repository url of reactjs?

248

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