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React is a JavaScript-based library that developers can use to build user interfaces for their applications.

React is a JavaScript-based UI development library. Facebook and an open-source developer community run it. Although React is a library rather than a language, it is widely used in web development. The library first appeared in May 2013 and is now one of the most commonly used frontend libraries for web development.

What Is React?

React is a JavaScript-based library that developers can use to build user interfaces for their applications. Developers can create single page apps or dynamic web pages by using the React library along with other technologies like CSS, HTML, and JavaScript.

Why React?

When developers use React to make user interfaces, they only have to modify a small piece of code that affects the whole interface instead of having to update each section separately. This makes it much easier for developers to update their code and keep it looking smooth.

React was built to solve one problem: building large applications with data that changes over time.

In an ideal world, the UI could always be rendered in response to the latest data, without having to send requests over the network. This approach has several benefits:

Improve User Experience

Responsive Application

Fast Development

Features of React

The way that React uses components as building blocks allows developers to change individual components without affecting other parts of the application. The declarative style of coding makes it easier to catch errors and helps developers understand their code better because they are always aware of how changes will affect their application. Since React focuses on building out user interfaces, there's less overhead needed when integrating with other libraries.


The components are the basic building blocks of any React application and a typical React app will have many of these. They allow developers to split the UI into independent, reusable pieces, and think about each piece in isolation. This makes it easier to build complex UIs from small components as well as reuse these components between different applications. The fact that everything can be broken down into