React is an open-source JavaScript library that’s used to build user interfaces (UIs) for websites and applications:
- What it doesReact allows developers to create UIs by combining components, which are self-contained pieces of code that describe a part of the UI. React abstracts away much of the rendering work, allowing developers to focus on the UI design.
- How it worksReact uses one-way data binding, which means that changes to a child structure don’t affect the parent structure. This provides better code stability and smooth performance.
- Why it’s popularReact is a good choice for building responsive and scalable web applications. It’s also SEO friendly because it runs over a server and returns a virtual DOM request while browsing, which makes web pages light for search engine crawlers.
- How it’s usedReact can be used with other libraries to render to certain environments. For example, React Native can be used to build mobile applications.
- Who created itReact was developed by Facebook to build a more dynamic and responsive user interface. Facebook’s newsfeed was the first to use React.