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 jsx and how jsx can help applications in react.js?

534

How react router and its techniques differ from more traditional javascript routers like backbone’s router?

563

What are features of react.js?

379

Show how the data flows through redux?

367

How are forms created in react?

406

Differentiate between states and props.

400

Explain the purpose of render() in react.

388

What do you understand by refs in react?

361

How can you embed two or more components into one?

364

How do you modularize code in react?

398

How can you update the state of a component?

360

What do you understand by virtual dom? Explain its working.

331

What is arrow function in react? How is it used?

417

What do you understand from “in react, everything is a component.”

379

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

444

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Un-Answered Questions { React.js }

How to set up routing in reactjs. Explain with the help of step by step approach?

345

What is props?

383

Does React use HTML?

465

What is an action in Redux?

380

Why should I use react js?

353

What is flux concept in reactjs? Explain various flux elements including action, dispatcher, store and view. Give a simple practical example of installing and using flux in an application?

384

What is controllable component in reactjs?

400

How to use events in reactjs?

376

Why do you need to use props.children?

361

What is React State?

464

What are the purpose of render() in react?

384

Which feature can we use to cause a component to render only when its id changes?

546

What is the reduction?

330

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

341

What is the use of Webpack?

372

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