Quiz: React JS-Programming Test Questions

What is React JS?

A JavaScript-based UI development library is called React, and Facebook and an open-source development community control it. React is a popular library in web development, even though it isn't a language. The library made its debut in May 2013 and is currently one of the frontend libraries for web development that is most frequently used.

With the aid of React, programmers may build substantial online applications that can modify data without refreshing the page. React's primary goals are quick, scalable, and easy to use. It only functions with the application's user interfaces. This relates to the MVC template's view. It can be combined with other JavaScript frameworks or libraries, such as Angular JS in MVC.

Why use React?

Let's look more closely at what makes the React library unique compared to other frameworks and libraries and what makes it so strong and well-liked for application development. ReactJS's primary goal is to create User Interfaces (UI) that increase the speed of apps. It uses virtual DOM (JavaScript object), which enhances the app's performance. Faster than the standard DOM is the JavaScript virtual DOM. ReactJS integrates with different frameworks and can be used on the client and server sides. It uses component and data patterns to make larger apps more readable and maintainable.