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?

475

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

509

What are features of react.js?

321

Show how the data flows through redux?

327

How are forms created in react?

346

Differentiate between states and props.

361

Explain the purpose of render() in react.

342

What do you understand by refs in react?

330

How can you embed two or more components into one?

324

How do you modularize code in react?

336

How can you update the state of a component?

331

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

298

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

382

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

347

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

403

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Un-Answered Questions { React.js }

Explain the use of the arrow function in React

365

What are the popular libraries used for flux?

465

Is it possible to use async/await in plain react?

341

What is the significance of store in redux?

339

Why reactjs is used?

336

What is difference between setstate and forceupdate () and finddomnode () in reactjs?

329

What were the major problems with mvc framework?

433

What is the second argument that can optionally be passed to setState and what is its purpose?

470

What is forceUpdate()?

365

Please explain step by step approach on how to setup environment for reactjs?

325

Explain the significance of keys in react?

327

Explain the Presentational segment

423

Explain the term synthetic events?

493

Why do you need to use props.children?

317

What are the methods called when state or props of the component is changed?

337

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