Yoga
Yoga is an open-source cross-platform layout library developed by Facebook, now Meta, that implements Flexbox for building user interfaces. It allows developers to create consistent layouts across different platforms, such as iOS, Android, and web, by calculating positions and sizes of elements based on a set of constraints. Originally part of React Native, it has been extracted as a standalone library to enable broader use in various frameworks and languages.
Developers should learn Yoga when building cross-platform applications that require consistent and responsive layouts, as it simplifies UI development by providing a unified layout engine. It is particularly useful in React Native projects for handling complex UI arrangements, but also in other contexts like C++ or Java applications where Flexbox-based layout is needed. Use cases include mobile app development, desktop applications, and embedded systems where layout consistency across devices is critical.