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React.js Interview Questions
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How react component lifecycle methods help in building interfaces?

 180

What is shouldcomponentupdate and when is used in react.js?

 177

What is react.js? How is it different from other javascript frameworks?

 165

Explain step by step approach on how to setup environment for reactjs?

 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?

 178

What is the difference between react components extend, createclass and mixins, hocs?

 168

Which feature can we use to cause a component to render only when its id changes?

 272

What is redux and flux?

 163

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

 181

Explain lifecycle of a react component?

 173

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

 186

How to set up routing in reactjs. Explain with the help of step by step approach?

 154

What is a router in react.js?

 176

Please explain step by step approach on how to setup environment for reactjs?

 172

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

 160

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Un-Answered Questions { React.js }

Explain what is CSS-in-JS pattern?

185

What are refs in reactjs?

176

What is react fiber?

188

List down the components of redux?

214

Name two types of React component?

167




Which is best react or angular?

157

Please explain step by step approach on how to setup environment for reactjs?

172

How do you apply vendor prefixes to inline styles in react?

179

What is the significance of refs in react?

168

Explain the features of react?

154

How to add google analytics for react router?

196

What are the different phases of react component’s lifecycle?

196

What is react router?

185

What are keys in reactjs and why are they important?

167

How to enable production mode in react?

194

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