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React.js Interview Questions
Questions Answers Views Company eMail

What is React?

 189

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

 252

What are the pros and cons of using React?

 185

What is JSX?

 168

What is React.createClass?

 180

What is React.createElement?

 199

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

 242

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

 190

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

 175

What is the difference between state and props?

 185

Name the different React lifecycle methods.

 187

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

 223

What are controlled components?

 175

What are refs used for in React?

 185

What is a higher order component?

 180

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Un-Answered Questions { React.js }

In which lifecycle event do you make ajax requests and why?

158

Explain basic code snippet of jsx with the help of a practical example?

178

What is a state in react and how is it used?

202

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

236

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

183




What is jsx and how jsx can help applications in react.js?

169

How to embed two components in one component?

192

How to use https instead of http in create-react-app?

179

How can I make an AJAX call?

201

What are the popular animation package in React ecosystem?

229

How events are different in react?

200

Define the term Redux in React

208

What is meant by pooling?

155

Explain the use of ‘key’ in react list

197

State the main difference between Pros and State?

209

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