Today's Talk introduces the webHID API, which allows developers to control real devices from the browser via USB. The HID interface, including keyboards, mice, and gamepads, is explored. The Talk covers device enumeration, input reports, feature reports, and output reports. The use of HID in the browser, especially in Chrome, is highlighted. Various demos showcase working with different devices, including a DualShock controller, microphone, gamepad, and Stream Deck drum pad. The Talk concludes with recommendations and resources for further exploration.

Cloud Code introduced sub-agent feature for better performance. Understanding the sub-agent concept and its role. Challenges of sub-agents in direct implementation. Parent agents' limited visibility. Efficient context management with MD files for sub-agents' tasks and reports boosting Cloud Code performance. Guidelines for creating useful sub-agents with specific MCP tools. Utilizing TweakScene MCP for scene design reference and defining rules for sub-agent tasks. Setting goals, output format, and rules for sub-agents. Building a chat GPT replica with chat.cn UI and Versatile AIS. Integration with VerCell AI SDK for seamless implementation.

Exploring AI's impact on React coding quality and the importance of context, tools, and practices in leveraging AI effectively. AI as a force multiplier, differences between vibe coding & AI-assisted engineering, AI models' competencies in React prompts, and React developers' favorable position amidst AI advancements. AI's implications for React development, complexity cliff in React work, and AI's design challenges for React developers. React work's complexity cliff, Design Arena benchmarks for AI design capabilities, AI's design challenges for React developers. AI's role in visual design control, Design Arena's insights on scaffolding impact, AI's UI scaffold capabilities and human judgment necessity. Vercell's Next.js evals, Webbench by ByteDance, and Web Dev Arena insights on AI performance in web development. Gemini 3 and GPT-5 catching up in design models, exploring website code generation, and design sensibility in AI for React workflow. Solving the purple problem in AI training, tips for using AI in React development for building sites, and managing AI like a junior developer. Evaluating AI's performance in complex tasks, lessons on using AI like a developer, and the importance of specificity and human oversight in AI usage. Enforcing productivity and supervision, addressing context failures through engineering and providing comprehensive context for agent performance. Template for context engineering, controlling tooling quality, using Context-7 for fresh docs and examples, leveraging MCP servers for real data, and improving overall quality loop. Connecting tools for closed-loop coding, Vive coding for rapid product creation, UI components for isolated, reusable components. UI components arena focus on isolated, reusable components and visual comparisons. Guidance for UI component generation and complex 3D and data visualization models for interactive experiences. AI assistants integration strategies for 3D and data visualization. Importance of specific details like libraries and scene descriptions for optimal AI assistance. Balancing control with AI model generation and the critical factors in AI code success or failure. Debugging workflow lessons applicable to all; New flow state in AI-assisted development focusing on orchestration and code creation; Gemini 3 launch for web development and design leadership. Website aesthetics and design improvements; Proactive tool utilization for React devs; Embrace AI for faster product development. AI in automated debugging with AI agents; Limitless potential of AI in coding quality; Image generation tools for slides; Addressing security and architectural regressions in AI-generated code. AI's Impact on Future Frameworks and Team Alignment in Workflow Standardization. Strategies for Context Bugs and Workflow Optimization.

Hello, React Summit. Welcome to this talk, a retrospective on four years in the making of our React Native video player. We will cover what went well, what didn't go well, and the lessons learned. We used React Native Video 5.2.1 and custom components to optimize the player. Streaming HLS, subtitles, and transcripts worked well. iOS performance was good, but the Android player and background audio management caused issues. Different media players and syncing audio players were challenges. Managing dependencies and versions was difficult. Upgrading React Native Video to version 6.4 improved stability and added notification features. Future updates will include DLL support and player-control separation.

Hi, I'm Mariko from Chrome Developer Relations Team. Let's dive into the talk, leveling up JavaScript. I sat down and learned JavaScript. I sat down and learned ES6 again. TC39 has published a new version of JavaScript spec every year. I want to focus on the parts of JavaScript that got updates recently. So ArrayFlat creates a new flattened array. You can also pass a depth argument to flatten nested arrays. Another method, copyToReserve, creates a reversed copy of an array. There's also copy to sort, which creates a sorted copy of an array. Another useful method is array to spliced, which allows you to remove and add items to a copied array. Lastly, the array at method returns an item at a given index. Array at accepts negative numbers for reverse order lookup. Find last iterates in reverse order and returns the item or index. Copy to change the value at a given index with a function. Object group by allows grouping and creating a new object by type. JavaScript intl allows for word segmentation in different languages, improving readability. It also includes features like data type format, number format, and plural rules for locale-based results. Staying up to date on web features is challenging due to time-consuming research and potential errors in implementation. Baseline provides clear information on web platform features supported by major browsers, ensuring compatibility without issues. Baseline provides two levels of support: newly available and widely available. By aligning your project to Baseline, you can confidently avoid browser compatibility issues. You can use Baseline to keep up with what's new on the web by installing the Baseline widget. Websites and dashboards like feature explorer and web starters.dev have been released. The project roadmap includes developer tooling and integrating Baseline into linters and actions. Check the RAM archive insights page for user data based on Baseline years. We are planning for more tools next year, including linting and AI integration.

This talk compares Rev and Reactive in Vue 3, exploring reactivity and their limitations. It discusses the use of watchers, identity issues, and migration strategies. The talk also highlights the benefits of using the Ref function for better reactivity and the recommended pattern of grouping Refs. Opinions from the Vue community are shared, with a majority preferring Ref over Reactive.

Speaker shared a story of creating a Haskell-inspired language for Zebra labelers using a compiler. Discussed the evolution of JS frameworks into compilers, focusing on React compiler's advanced techniques. Highlighted the role of compilers in reactive programming and code optimization. Explored challenges in large-scale migration using tools like tsmorph and QuickType. Emphasized the significance of compilers in user interface development and software architecture decisions. Addressed the future of front-end tools, Web Assembly adoption, and the importance of experimentation with tools for project success.

Eric Rasmussen discusses React beyond the DOM, React PDF, Ink tools, and rendering to Markdown. The overview includes React Reconciler, host configuration, state management with real-world entities like light bulbs, and building a traffic light state machine visually. The talk also covers securing third-party JavaScript, expanding React rendering possibilities, advanced tooling for state machines, controlling light bulbs via renderer callbacks, server functions for fetch in the cloud, and potential robot programming with React.