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React.js Interview Questions
Questions Answers Views Company eMail

Explain what is CSS-in-JS pattern?

 181

What is the difference between super() and super(props)?

 167

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

 153

Can a developer create animations in React?

 193

How can I make an AJAX call?

 187

What is React.PropTypes?

 179

Name two types of React component?

 161

What are Props in react js?

 164

What a setState is doing?

 206

What is the difference between a function in setState or passing an object?

 167

Can you force a React component to rerender without calling setState?

 167

What is Redux Thunk used for?

 193

Difference between constructor and getInitialState ?

 175

Do you need to use ES6 (+) with React?

 191

What is React State?

 182

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Un-Answered Questions { React.js }

What do you understand by “single source of truth”?

157

What is the difference between the state and props in reactjs?

158

How can you update state in react js?

187

Why do we need a router in reactjs?

158

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

235




What is lifting state up in react?

181

What are the components of redux.

171

What is the difference between an element and a component in react?

161

How to install react js on your local machine?

156

What is the virtual dom, and a pragmatic overview of how react renders it to the dom in react.js?

173

How arrow functions are used?

151

What is the main goal of react fiber?

146

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

161

How events are different in react?

192

List down the components of redux?

210

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