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React.js Interview Questions
Questions Answers Views Company eMail

How do you pass data from child to parent component?

 175

How do you this in constructor?

 176

When rendering a list what is a key and what is it's purpose?

 165

What's the difference between super() and super(props) in React when using ES6 classes?

 191

What is Children?

 171

How is react different?

 180

Why reactjs is used?

 171

What are the features of react?

 206

How reactjs framework is different as compared to others?

 173

How is react different from angular?

 176

What is the lifecycle methods order in mounting?

 184

What are higher order components(hoc)?

 188

What are the advantages of redux?

 176

How to update a component every second?

 210

What do you understand with the term polling?

 193

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Un-Answered Questions { React.js }

Explain the meaning of Mounting and Demounting

164

Why is it necessary to capitalize component names?

174

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

236

Explain the term high order component

183

What are the purpose of render() in react?

161




What are the major issues of using MVC architecture in React?

174

Give an example of using events?

176

How are actions defined in redux?

201

What is import in react?

166

List some advantages of reactjs?

187

What is Redux?

182

Why is react better?

133

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

173

What are Props in react js?

168

What do you understand with the term polling?

193

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