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 the purpose of render() function in reactjs?

450

What are the controlled components and uncontrolled components in reactjs?

433

What are refs in reactjs? When to use it.

426

What are synthetic events?

406

How is reactjs different from angular and vue js?

495

Explain life cycle of react js component?

382

What is the difference between dom and virtual dom in reactjs?

561

Enlist the advantages and disadvantages of reactjs?

439

Explain the difference between functional and class components.

401

List some features of reactjs?

379

List some advantages of reactjs?

396

What are stateless components in reactjs?

422

How is flux different from redux?

437

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

478

What do you understand by mixin or higher order components in reactjs?

374

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Un-Answered Questions { React.js }

What is unidirectional data flow? How does data flow happening in Redux?

453

What are reacted portals?

414

How to pass a parameter to an event handler or callback?

456

What are Props in react js?

456

Explain the features of react?

421

What are features of react.js?

414

What can you do with hoc?

420

Explain the different phases of react component’s lifecycle?

409

What are stateless components in reactjs?

422

What do you understand by “single source of truth”?

402

What is the difference between react components in es5 and es6?

433

Explain the term high order component

425

What is redux and flux?

437

What are the components of redux.

404

How to use events in reactjs?

417

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