Essential ReactJS Interview Questions Must Prepare

ReactJS Interview Questions – Here is the list of React Interview Questions to prepare for interviews for both freshers and experienced resources. Click here for AngularJS Interview questions.

    

ReactJS Interview Questions

What is ReactJS? What is the purpose of ReactJS ?
What is the difference between AngularJS, ReactJS and ExtJS?
What is the life cycle of a ReactJS component ?
What is the difference between controlled and uncontrolled component?
What is the difference between an Element and a Component in ReactJS?
What is setState ? What happens when you call setState?
When would you use a Class Component and Functional Component?
What about refs, keys in ReactJS and what is the purpose to use them ?
Explain how events are handled in ReactJS?