Semantic UI React is a popular library that provides a set of reusable React components for building user interfaces. It is based on Semantic UI, a comprehensive CSS framework that offers a wide range of pre-designed UI elements and styles.
Semantic UI React is more popular and widely used than JSS, as it is a comprehensive UI library that provides pre-built components and a well-established community.
Semantic UI React is tightly integrated with React and provides a seamless experience when building React applications. It offers a declarative way to work with UI components and handles component state and event handling. JSS, on the other hand, is a general-purpose styling library and can be used with different frameworks, including React, Angular, and Vue.
Semantic UI React provides a rich set of pre-designed components, which speeds up development and reduces the need for writing custom CSS. It also offers good documentation and community support. JSS, on the other hand, requires more customization and manual styling, which can make the development process slightly more complex. However, JSS provides a more programmatic approach to styling and allows for easier styling overrides and dynamic styles.
JSS generates and injects the styles directly into the HTML markup at runtime, which can lead to slightly slower initial rendering compared to pre-compiled CSS stylesheets used by Semantic UI React. However, once the styles are injected, JSS provides efficient and performant updates. Semantic UI React relies on pre-compiled CSS, resulting in faster initial rendering, but may require additional HTTP requests to load the CSS files.