Fela is a more established library with a larger user base and community support. It has been used in production by several well-known companies and has a longer history of development and usage. On the other hand, @linaria/core is a newer library and may not have the same level of popularity or extensive community support.
Both @linaria/core and Fela focus on performance optimizations. @linaria/core uses a zero-runtime CSS-in-JS approach, which means it compiles styles during build time and does not introduce any additional runtime overhead. Fela, on the other hand, provides a highly performant rendering engine by utilizing techniques like dynamic CSS injection and efficient style caching.
API and Features
Fela offers a comprehensive set of features including theming, plugin system, support for nested styles, and various styling paradigms like CSS-in-JS, Atomic CSS, and more. It provides a flexible and extensible API for creating and managing styles. @linaria/core, on the other hand, focuses on simplicity and aims to provide a minimalistic API. It focuses primarily on CSS-in-JS functionality and does not provide the same level of feature set as Fela.
Integration and Ecosystem
Fela has good integration with popular frameworks like React and Vue.js, and provides official bindings for these frameworks. It also has a rich ecosystem of plugins and tools that can enhance its capabilities. @linaria/core, on the other hand, is specifically tailored for React and offers seamless integration with the React ecosystem. It provides a Babel plugin and supports TypeScript out of the box.
Both libraries aim to provide a good developer experience. Fela offers a comprehensive set of developer-friendly tools and features like a browser extension, debug mode, and rule-based style composition. It has a well-documented API and a supportive community. @linaria/core, being a more minimalist library, may have a simpler learning curve and a more lightweight setup. It provides a straightforward API that is easy to understand and use.
Maintenance and Community Support
Fela has a dedicated team behind it and has been actively maintained and updated over the years. It has a larger community, which means more resources, documentation, and support. @linaria/core is also actively maintained, but it may not have the same level of community support and resources as Fela due to its relatively newer status.