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React.js Interview Questions
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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 }

How to pass a parameter to an event handler or callback?

188

What is the use of a super keyword in React?

173

What are arrow functions? How are they used?

188

What is the purpose of push() and replace() methods of history?

224

List down the advantages of react router?

201




Which is best react or angular?

163

What are components in reactjs? Explain the component lifecycle with the help of a diagram explaining each component method in detail. Also, give an example of both stateless and stateful components with source code?

182

What are the advantages and disadvantages of using react components?

177

What is the second argument that can optionally be passed to setState and what is its purpose?

288

Why is react so popular?

150

What is the significance of store in redux?

173

Is it possible in React to call the Child method from Parent?

163

Explain the term ‘Restructuring.’

165

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

190

What is the difference between npm & npx?

218

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