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

 178

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

 175

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

 163

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

 157

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?

 176

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

 166

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

 270

What is redux and flux?

 161

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

 177

Explain lifecycle of a react component?

 171

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

 182

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

 152

What is a router in react.js?

 174

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

 166

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

 156

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Un-Answered Questions { React.js }

What is a higher order component?

174

How can you embed two or more components into one?

182

What is the difference between angularjs vs react.js?

178

What is the differnece between real dom and virtual dom?

158

How do you tell react to build in production mode and what will that do?

195




What is the use of ‘prop-types’ library?

182

What is render() in React? And explain its purpose?

205

What is Babel in React js?

174

Explain the meaning of Mounting and Demounting

162

Explain the purpose of render() in react.

161

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

169

List some of the major advantages of react?

153

Explain the significance of keys in react?

146

What is React.cloneElement? And the difference with this.props.children?

168

What is reactjs-jsx? What are the advantages of using jsx?

174

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