Rubén Norte
645f846c73
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/56760 Aligns error handling in the new EventTarget-based event dispatch path with the legacy plugin path, which surfaces handler errors to the host's global error handler (rather than swallowing them as `console.error`). Previously, when a React event handler threw, `EventTarget.invoke` caught the error and called `console.error(error)` — the error never reached the host's error reporter, so it was effectively silent in production builds that intercept `console.error`. This diff replaces the `console.error` calls in `EventTarget.invoke` with a small `reportListenerError` helper that schedules the error to be re-thrown in a new task via `setTimeout(0)`. The throw has no catcher above it, so the host's unhandled-error reporter sees it — matching the legacy plugin path's `runEventsInBatch` + `rethrowCaughtError` behavior of propagating the first listener error after the dispatch batch completes. The dispatch loop itself continues normally so subsequent listeners (e.g. parent bubble handlers) still fire. Updates the corresponding test in `EventTargetDispatching-itest.js` to drop the `console.error` mock setup that was specific to the old behavior. Both code paths now satisfy the same assertion (`expect(dispatch).toThrow('handler error')`) — the legacy path throws synchronously after the React batch; the new path's async re-throw surfaces inside Fantom's internal work-loop pump during `Fantom.dispatchNativeEvent`. Changelog: [Internal] Reviewed By: javache Differential Revision: D104650049 fbshipit-source-id: 793072f82c9abf11f4fad23b3c1f044f0e5d2936
React Native
Learn once, write anywhere:
Build mobile apps with React.
Getting Started · Learn the Basics · Showcase · Contribute · Community · Support
React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.
- Declarative. React makes it painless to create interactive UIs. Declarative views make your code more predictable and easier to debug.
- Component-Based. Build encapsulated components that manage their state, then compose them to make complex UIs.
- Developer Velocity. See local changes in seconds. Changes to JavaScript code can be live reloaded without rebuilding the native app.
- Portability. Reuse code across iOS, Android, and other platforms.
React Native is developed and supported by many companies and individual core contributors. Find out more in our ecosystem overview.
Contents
- Requirements
- Building your first React Native app
- Documentation
- Upgrading
- How to Contribute
- Code of Conduct
- License
📋 Requirements
React Native apps may target iOS 15.1 and Android 7.0 (API 24) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like Expo can be used to work around this.
🎉 Building your first React Native app
Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:
📖 Documentation
The full documentation for React Native can be found on our website.
The React Native documentation discusses components, APIs, and topics that are specific to React Native. For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
The source for the React Native documentation and website is hosted on a separate repository, @facebook/react-native-website.
🚀 Upgrading
Upgrading to new versions of React Native may give you access to more APIs, views, developer tools, and other goodies. See the Upgrading Guide for instructions.
React Native releases are discussed in this discussion repo.
👏 How to Contribute
The main purpose of this repository is to continue evolving React Native core. We want to make contributing to this project as easy and transparent as possible, and we are grateful to the community for contributing bug fixes and improvements. Read below to learn how you can take part in improving React Native.
Code of Conduct
Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.
Contributing Guide
Read our Contributing Guide to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React Native.
Open Source Roadmap
You can learn more about our vision for React Native in the Roadmap.
Good First Issues
We have a list of good first issues that contain bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.
Discussions
Larger discussions and proposals are discussed in @react-native-community/discussions-and-proposals.
📄 License
React Native is MIT licensed, as found in the LICENSE file.