React.js Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

React.js Interview Questions

Questions Answers Views Company eMail

How is react.js different from other javascript frameworks?

476

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?

415

What is the difference between flux vs mvc?

474

How to use forms in reactjs? Give an example of using forms in reactjs by developing a user registration form?

398

What kind of tools might you use in the build steps to optimize the compiled output of the react code?

567

What are the benefits of using react.js?

506

What are react component lifecycle methods?

490

When would you use setstate() and forceupdate()?

362

What are the advantages and disadvantages of using react components?

500

How to set up routing in reactjs?

459

How might react handle or restrict props to certain types, or require certain props to exist?

444

What is the difference between various react component lifecycle methods?

484

What is redux and flux? When do you use them?

432

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

388

Have you used html while working with react.js?

406

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Un-Answered Questions { React.js }

Name the important features of React

405

What are components in reactjs?

414

Give an example of both stateless and stateful components with source code?

451

How to set up routing in reactjs?

459

What is SyntheticEvent?

411

How Virtual-DOM is more efficient than Dirty checking?

470

How to set state with a dynamic key name?

462

How to use forms in reactjs? Give an example of using forms in reactjs by developing a user registration form?

398

Explain the significance of store in redux?

426

What are the difference between pros and state?

497

Explain the role of reducer?

437

What are the controlled components and uncontrolled components in reactjs?

431

What is an Action? How do you describe an Action?

553

Can you update the values of props?

423

What are lifecycle hooks react?

486

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