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 the components of redux.

372

Explain the major advantages of react.

376

Explain the different phases of react component’s lifecycle?

379

Explain the significance of store in redux?

402

What is a state in react?

404

What are the advantages of react router.

366

What is the role of reducer.

398

Explain the features of react?

372

How state is useful for react?

398

What do you understand by virtual dom?

376

Explain the advantages of redux?

358

Explain the limitations of react?

366

What is the difference between stateful and stateless components.

469

How arrow function is used in react?

458

What is the difference between states and props.

400

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Un-Answered Questions { React.js }

Explain the meaning of Mounting and Demounting

363

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

512

How it is different from other front end language?

353

What is the main difference between createElement and cloneElment?

413

What is import in react?

395

What are portals in react?

477

What is Reactjs?

367

What are the limitations of reactjs?

532

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

546

What are children prop?

365

Explain step by step approach on how to setup environment for reactjs?

356

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

444

What is the difference between a function in setState or passing an object?

378

How can you share an element in the parsing?

406

How react component lifecycle methods help in building interfaces?

466

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