React allows developers to build applications quickly and efficiently. Instead of writing thousands of lines of code, developers can write a small number of components that perform the same basic tasks. These components can then be reused throughout the application. They also follow a unified data flow, which makes debugging easier and pinpointing problems easier.

React JS is an open source project, so any developer can download and modify the source code. As a result, a React library can grow exponentially with community-curated libraries and add-ons. These add-ons can be anything from individual UI features to React JS templates.

Developers can create React JS applications for different platforms, including iOS and Android. The codebase is cross-platform, making it compatible with many different operating systems. In addition to being cross-platform, developers can use the same code base for their mobile apps. Moreover, because it is open source, React JS applications can be used in any number of contexts.

React JS has been evolving rapidly over the past few years and has become one of the most popular front-end technologies available. However, creating and maintaining large applications with many integrations is challenging, especially with ever-changing business requirements. Because of its modular architecture, React JS allows developers to update individual components easily and quickly. By doing this, developers can reuse objects defined in one element across multiple components, thus reducing time and effort.