ReactJS Interview Questions

1. What is ReactJS ?

ReactJS is an open-source JavaScript library, which is created by Facebook in 2013 for building complex, interactive UIs in web and mobile applications.

2. Why we use ReactJS ?

We use ReactJS for handling the view part of the applications.

3. What is FLUX in ReactJS ?

FLUX is an application architecture in React view Library which designed by Facebook for creating data layer in an application based on JavaScript.

4. What is the difference between ReactJS and AngularJS ?

Both ReactJS and AngularJS are a very powerful and diverse approach for a front-end web application. Both support's small, medium and large enterprise application. ReactJS application's are SEO friendly, simple and easy to understand, while AngularJS application's are easy to develop and support's a different form of testing.

5. How FLUX is different from REDUX ?

FLUX is a container for application state and logic, while REDUX is a container for javascript applications.

6. What do you mean a functional component in React ?

Functional component is those components which returns react elements as an element.

7. What are the component's of REDUX ?

Action, Reducer, Store, View are the component's of REDUX.

8. Who developed the ReactJS ?

ReactJS was developed by Facebook, and its first release was happen in March 2013.

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