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 React?

1 462

How React works? How Virtual-DOM works in React?

1 548

What are the pros and cons of using React?

1 486

What is JSX?

1 453

What is React.createClass?

1 458

What is React.createElement?

1 493

What is ReactDOM and what is the difference between ReactDOM and React?

1 574

What is the difference between a Presentational component and a Container component?

1 503

What are the differences between a class component and functional component?

1 496

What is the difference between state and props?

1 502

Name the different React lifecycle methods.

1 532

Where in a React component should you make an AJAX request?

1 610

What are controlled components?

1 456

What are refs used for in React?

1 458

What is a higher order component?

1 457

Un-Answered Questions { React.js }

How would you create higher order components (hocs) in react.js?

445

How to use events in reactjs? Give an example of using events?

554

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