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React.js Interview Questions
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What is React?

 21

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

 25

What are the pros and cons of using React?

 23



What is JSX?

 5

What is React.createClass?

 21

What is React.createElement?

 29

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

 5

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

 21



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

 5

What is the difference between state and props?

 13

Name the different React lifecycle methods.

 5

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

 25

What are controlled components?

 7

What are refs used for in React?

 5

What is a higher order component?

 5

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Un-Answered Questions { React.js }

What is low-level component lifecycle in react.js?

3

What are pure functional components?

7

What are the differences between controlled and uncontrolled components?

5

What is flux?

11

What is React.PropTypes?

15




What is the difference between react components in es5 and es6?

3

How events are different in react?

29

How will be you able to handle more action using redux?

5

what is the usage of refs and keys used in react?

42

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?

3

What is shouldcomponentupdate and when is used in react.js?

3

What are reacted portals?

5

What are the components of redux.

3

What are the feature of reactjs?

11

What are pure components?

5

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