React.js Interview Questions
Questions Answers Views Company eMail

Explain the significance of keys in react?

148

What is the difference between real dom and virtual dom.

190

Is reactjs a framework?

173

What is react js good for?

174

Which is best react or angular?

157

Which is better angular or react js?

171

Why react js is faster?

166

Why should I use react js?

152

Is react a mvc framework?

150

What is lazy loading react?

164

What are lifecycle hooks react?

225

Why is react better?

133

Why is react so popular?

146

Why vue js is better than react?

165


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Un-Answered Questions { React.js }

What is React.PropTypes?

183


What is Children?

171


Name the different React lifecycle methods.

183


What is the difference between element and component?

230


Explain the significance of keys in react?

148






What is current stable version of reactjs?

198


What is meant by callback function? What is its purpose?

187


When would you use setstate() and forceupdate()?

147


Is setState() is async? Why is setState() in React Async instead of Sync?

169


What are the methods called when state or props of the component is changed?

179


How Virtual-DOM is more efficient than Dirty checking?

204


How can you embed two or more components into one?

182


How are actions defined in redux?

201


How to add google analytics for react router?

196


Why do you need to use props.children?

159