#anchor-positioning-api

#anchor-positioning-api

The query_one() method throughout the Textual documentation allows users to retrieve a single widget that matches a CSS selector or a widget type. You can pass in up to two parameters to query_one(), which are the CSS selector and the widget type, or both at the same time.

TanStack RSCs are supported through three primitive APIs that allow manipulation of RSCs as any other stream of data, compatible with tools like React Query and TanStack Router.

Dhruv Amin stated, 'We built a mobile app primarily to let our users who are building iOS apps preview their own app on their own device while developing it. [We] had no problems through December. Post December, we and everyone else in the category started getting our updates blocked.'

Modern web applications are no longer just "sites." They are long-lived, highly interactive systems that span multiple runtimes, global content delivery networks, edge caches, background workers, and increasingly complex data pipelines. They are expected to load instantly, remain responsive under poor network conditions, and degrade gracefully when something goes wrong.

The web is full of AI assistants that appear to understand application UIs, user data, and intent. In practice, however, most of these systems operate outside the application itself. When you try to build one from scratch, you quickly run into a core limitation: large language models have no native understanding of your React state, component hierarchy, or business logic.