--- title: "React" description: "Understanding core React concepts and patterns for building modern applications" url: https://www.callstack.com/insights/react updated: 2026-10-22T13:55:51.159Z --- # React Understanding core React concepts and patterns for building modern applications React forms the foundation of modern web and mobile development with its component-based architecture and declarative approach. Master React's core concepts, from hooks and state management to performance optimization techniques that apply across both web and React Native applications. ## Articles, podcasts, events and case studies - [Writing Custom Renderers for React](https://www.callstack.com/blog/writing-custom-renderers-for-react) (Article, 6/24/2026): Learn how React renderers work, why RNTL needed a new test renderer, and what it takes to connect React Reconciler to a host environment. - [Building iOS Live Activities With React: Inside Voltra](https://www.callstack.com/events/building-ios-live-activities-with-react) (Event, 12/18/2025): Learn how to build iOS Live Activities and Dynamic Island experiences using pure JSX, no Swift or native code required. - [From React Native Web to React Strict DOM](https://www.callstack.com/podcasts/from-react-native-web-to-react-strict-dom) (podcast, 11/27/2025): Nicolas Gallagher (Meta) explains how React Strict DOM evolved from React Native Web, providing a shared syntax that compiles to native or web with zero overhead. - [React Foundation: New Governance Model for React and React Native](https://www.callstack.com/podcasts/react-foundation-new-governance-model-for-react-and-react-native) (podcast, 11/21/2025): Seth Webster, Executive Director of the React Foundation, details its new governance model, Meta's role, and how partners like Callstack and Microsoft will ensure stability and scale. - [Exploring TanStack Ecosystem: From React Query to TanStack Start](https://www.callstack.com/podcasts/exploring-tanstack-ecosystem-with-tanner-linsley) (podcast, 4/9/2025): Tanner Linsley breaks down TanStack’s evolution-from React Query to Start, and why client-first React apps still matter in today’s full-stack landscape. - [Create React App is Out: Exploring Alternatives & Community Proposals](https://www.callstack.com/events/create-react-app-is-out-exploring-alternatives-community-proposals) (Event, 2/20/2025): CRA is now deprecated, so we explore other options for starting web React projects, going through Vite, TanStack Router, Parcel, and Rsbuild to check the developer experience. - [State of React 2024 Breakdown](https://www.callstack.com/events/state-of-react-2024-breakdown) (Event, 2/13/2025): Let's take a deep dive into the long-awaited State of React survey from 2024; brace yourselves for a two-hour ride. - [How to Get Started With 3D in React](https://www.callstack.com/podcasts/how-to-get-started-with-3d-in-react) (podcast, 9/24/2024): Learn how to implement 3D in React apps, learn more about top libraries like React Three Fiber, and dive into WebGPU's future. - [The Complete Developer Guide to React 19, Part 3: Upgraded Support](https://www.callstack.com/blog/the-complete-developer-guide-to-react-19-part-3-upgraded-support) (Article, 9/9/2024): Learn how React 19's new features enhance SEO, page performance, and custom elements support for better, faster web applications. - [Welcome to the React Universe](https://www.callstack.com/events/welcome-to-the-react-universe) (Event, 9/5/2024): This is the Keynote talk presented at React Universe Conf 2024, the largest community conference that unites developers and thought leaders to explore trends, share insights, and push the boundaries of React and React Native. - [The Complete Developer Guide to React 19, Part 2: New Enhancements](https://www.callstack.com/blog/the-complete-developer-guide-to-react-19-part-2-new-enhancements) (Article, 9/3/2024): Discover React 19's key updates, including improved \`ref\` usage, error reporting, and context consumption in part 2 of this practical developer guide. - [The Complete Developer Guide to React 19, Part 1: Async Handling](https://www.callstack.com/blog/the-complete-developer-guide-to-react-19-part-1-async-handling) (Article, 9/2/2024): Explore the key features of React 19 beta, focusing on new hooks that enhance async handling, state management, and form submissions. - [Building in React and React Native: 5 Years Ago & Now](https://www.callstack.com/podcasts/building-in-react-and-react-native-5-years-ago-now) (podcast, 3/14/2024): In this episode, we talk the current state of React & React Native, compare it to how things were 5 years ago and give advice to newcomers in the industry. - [Understanding React Server Components](https://www.callstack.com/blog/understanding-react-server-components) (Article, 5/2/2023): React Server Components (RSC) are still work in progress, but now it's the best time to explore these core concepts of future React. Find out why and how! ## Need help with React or React Native projects? We support teams building scalable apps with React and React Native. [Talk to our team](https://www.callstack.com/contact)