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React.js Interview Questions
Questions Answers Views Company eMail

What are arrow functions?

 166

What is the difference between reactjs and angularjs?

 179

How can we build react in production mode?

 159

What is “forward refs”?

 163

What is the difference between createelement and cloneelement?

 182

What is the differnece between real dom and virtual dom?

 166

What is meant by pooling?

 155

What is the purpose of render() in react?

 154

What are arrow functions? How are they used?

 188

What are controlled and uncontrolled components?

 187

How it is different from other front end language?

 146

What is function based component?

 163

How do you embed two components in one component?

 150

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

 163

What is reactjs-jsx? What are the advantages of using jsx? Explain basic code snippet of jsx with the help of a practical example?

 167

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Un-Answered Questions { React.js }

What is props?

158

Is reactjs a framework?

177

Show how the data flows through redux?

164

What are refs in react and why are they important?

178

List some of the major advantages of react?

163




Explain the use of ‘key’ in react list

197

Why is it necessary to capitalize component names?

178

Can you update props in react?

202

what are the limitations of react?

212

What are the controlled components and uncontrolled components in reactjs?

197

What is JSX?

168

What is the role of reducer.

174

Explain the components of Redux?

217

What is the main difference between createElement and cloneElment?

190

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

236

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