The platform embedding React Native (e.g., Android, iOS, macOS, Windows).

In the host platform, views are represented as trees (e.g. Android, iOS). The host views on Android are instances of the host view tree's building blocks, such as android.view.ViewGroup, android.widget.TextView, etc. Each host view's dimensions and placement are determined by LayoutMetrics computed with Yoga, and each host view's design and…

regarding communications. Signals that are sent and received synchronously have a set timing. This means that since the sender and receiver operate on the same clock cycle and operate essentially in fixed time intervals, errors only occur when signals are sent or received outside of the expected window of time.…

React 18 will be the first React release adding opt-in support for concurrent features such as: startTransition: lets you keep the UI responsive during an expensive state transition. useDeferredValue lets you defer updating the less important parts of the screen. Streaming SSR with selective hydration: lets your app load and become…

An application's capacity to transform HTML files on the server into a fully rendered HTML page for the client is known as server-side rendering (SSR). The server receives a request for information from the web browser and immediately responds by sending the client a fully rendered page. Before content is…

The developer experience has long been given due attention by the React team and community. Examples include making sure React has clear error messages, emphasising components as a way to reason locally about app behaviour, designing APIs that are predictable and promote proper usage by design, etc. However, we haven't…

Thread safety is the avoidance of data races—situations in which data are set to either correct or incorrect values, depending upon the order in which multiple threads access and modify the data. When no sharing is intended, give each thread a private copy of the data. When sharing is important,…