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?

324

What is the difference between reactjs and angularjs?

343

How can we build react in production mode?

330

What is “forward refs”?

332

What is the difference between createelement and cloneelement?

400

What is the differnece between real dom and virtual dom?

333

What is meant by pooling?

356

What is the purpose of render() in react?

376

What are arrow functions? How are they used?

345

What are controlled and uncontrolled components?

343

How it is different from other front end language?

304

What is function based component?

345

How do you embed two components in one component?

291

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

380

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

321

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Un-Answered Questions { React.js }

What are state and props in reactjs?

406

Enlist the advantages and disadvantages of reactjs?

368

When would you use a class component over a functional component?

345

What are the popular react-specific linters?

325

What kind of information controls a segment in React?

629

What is the difference between state and props in react js?

407

What is the ‘Store’ feature in Redux?

322

Explain the use of ‘key’ in react list

370

How can a browser read JSX file?

339

What is react intl?

531

What is the difference between setstate() and forceupdate()?

337

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

358

How are actions defined in redux?

400

How do you modularize code in react?

336

How will be you able to handle more action using redux?

346

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