#React

#React

Apple's Liquid Glass UI for iOS 26 is getting a lot of attention. Beyond the visual hype, it is also raising questions about accessibility and usability. Developers, however, are already trying to recreate the effect for the web and mobile interfaces. On iOS, Liquid Glass is backed by a rendering engine designed to generate high-fidelity, physics-like glass patterns efficiently. Web browsers do not expose this kind of native abstraction, but we do have SVG filters, which are powerful enough to approximate the same effect.

At React Advanced 2025, Aurora Scharff presented Building Interactive Async UI with React 19 and Ariakit and shared how ARIAKit, an open-source accessibility library, enables developers to build custom UI components that meet WCAG standards without requiring deep accessibility expertise. The presentation showcased a practical approach to combining ARIAKit's unstyled primitives with modern React patterns to create production-ready, accessible interfaces.

When you are building a social feed, data grid, or chat UI, everything feels fine with 10 mock items. Then you connect a real API, render 50,000 rows with myList.map(...), and the browser locks up. The core problem is simple: you are asking the DOM to do too much work. Virtualization solves this by rendering only what the user can actually see. Instead of mounting 50,000 nodes, you render the 15-20 items that are visible in the viewport, plus a small buffer.

Build an AI assistant with Vercel AI Elements, which provides pre-built React components specifically designed for AI applications.

Vitest, by introducing its Browser Mode, allows tests to run in an actual browser context, enhancing reliability and realism in UI testing.

React continues to excel in team collaboration and ecosystem support, but for those focused on future development, SvelteKit shines with its user experience.

The WebSocket protocol offers persistent, real-time, full-duplex communication between the client and the server over a single TCP socket connection.