Today's Talk explores the concepts of async local storage and React context. Async local storage is a useful API for retrieving values from a parent component without passing them through multiple components. React context, on the other hand, allows for the creation of context instances in parent components and consumption in child components. The Talk also discusses server actions in React, their limitations, and the use of async local storage in server actions, with an example Cloudflare worker handling web requests and authentication.

Hi, I'm Mark Erickson, and today I'm very happy to talk to you about designing effective documentation, lessons I've learned writing the Redux docs. We'll discuss organizational techniques, practical tips, writing tutorials, and useful documentation tools. Redux offers learning-oriented tutorials and goal-oriented how-to guides. Other documentation categories include reference guides, explanations, readme files, FAQ pages, and release notes. Tips for organizing and writing documentation: consider the target reader, assume prerequisite knowledge, repeat information, cover topics in multiple areas. Writing tutorials for libraries in TypeScript presents challenges but can be tackled with TypeScript-first approach and keeping examples up-to-date. Engaging tutorials involve interactive exercises, diagrams, and formatting, and should be reviewed and improved based on feedback. Overall, documentation is valuable and worth the effort.

My name is Mark Dalglish and I'm here to discuss how ReactRouter became a framework. Remix is built on ReactRouter and heavily relies on it. Remix feels like a framework because it has a CLI, manages the dev and build lifecycle, and has strong opinions about the file system structure. Remix embraced Vite as a plugin, allowing developers to integrate it seamlessly into their existing Vite setup. The shift to Vite led to a change in the philosophy of Remix Vite, enabling frameworks to orchestrate all the environment builds and make the framework as a plugin pattern first class. React Router is merging with Remix to make all the build time framework features available to React Router consumers. React Router is now officially a framework as well as a library. The move to integrate Remix into React Router is driven by the exploration of the next generation of Remix. React Router V7 simplifies by dropping the React Native layer and allows flexibility for consumers to use it as a library or as a framework with additional architectural features provided by plugins. The focus is on betting on Vite in the long term, and React Router plans to support React Server components. Thank you to Mark for answering the questions.

Hello everyone. My name is Szymon Chmal and I am a Senior React Native Developer at CallStack. Today I'm going to introduce you to ASTRA, a powerful tool in modern web development that optimizes content delivery while providing the flexibility of modern JavaScript frameworks. ASTRA allows you to create blazing fast static websites without needing any JavaScript by default. It's perfect for sites that are mostly static but have a few interactive features. ASTRA is trusted by industry leaders like Microsoft and Porsche. It's built with content-driven pages in mind and supports integration with popular UI libraries like React, Vue, and Tailwind. ASTRA keeps things simple with file-based routing.

Today's talk is called Beyond Testing Library, Testing React Libraries and Library-like Code. The speaker, Lenz Liebertronik, discusses the special requirements for testing libraries, including minimizing re-renders, avoiding tearing, and rendering components granularly. They highlight scenarios where React Testing Library falls short and introduce the Testing Library React render stream as a solution. The speaker demonstrates how to test hooks, multiple hooks, and assert re-renders using different techniques. They caution about potential issues with React upgrades, test-only components, ACT batching, and Suspense boundaries. The speaker shares real-world usage of the render stream library and discusses the limitations of correlating renders with DOM commits. They emphasize the importance of testing libraries and gradually optimizing code. They also mention the benefits of using the testing library and conclude with gratitude and a Dutch lesson.

I'm super excited to be here today, giving my first live talk at an in-person conference. Dominik, the maintainer of React Query, walks through the API design decisions, including success stories, trade-offs, and mistakes. Tener Linsley designed React Query's medium-sized query API to be minimal, intuitive, powerful, and flexible. Major versions in open source require marketing efforts, but not primarily for adding new features. TypeScript is crucial for building projects and managing user demands in open source can be challenging. The addition of the max pages option improved performance and avoided unnecessary refetches. Inversion of control gives users flexibility, but mistakes can happen in API design. Open source requires time management and feedback from users. API design is influenced by typing ease and good TypeScript support. Getting involved in open source involves trial and error and joining community platforms like TanStack Discord. Dominik's journey started during the pandemic and he can be found on Twitter, TanStack Discord, and his blog.

Welcome to my talk on long frames and INP, understanding the post-load performance. The rail model introduced in 2015 provides recommendations for responsiveness and organizing JavaScript work around user input. Metrics like FCP, FMP, and LCP measure visual completeness, while metrics like first interactive and CPU idle assess CPU idleness. Total blocking time measures the impact of long tasks on page responsiveness, and TTI assesses when the browser can respond to interactions reliably. INP is a user-centric responsiveness metric that encompasses all potential causes of slow interactions. The long animation frame API improves attribution and helps pinpoint performance problems. Tools like Vercel toolbar and trace viewer on PerfLab can visualize interaction to next paint. INP and long animation frames provide valuable insights for improving web experiences.