bvaughn/react-error-boundary
React Error Boundary
react-error-boundary is a set of components and handlers designed to intercept JavaScript runtime exceptions and provide graceful user interface replacements during failures. It functions as a wrapper that catches errors within a component tree to render a fallback interface, preventing the entire application from crashing.
The project provides a mechanism for handling both synchronous errors during rendering and unexpected errors from asynchronous callbacks or event handlers. This ensures that failures are isolated within specific segments of the component tree, maintaining the stability and availability of the rest of the application.
It implements a system for switching between primary content and custom recovery screens through lifecycle-driven error capture and manual error triggering. These capabilities allow for a consistent approach to UI resilience and graceful degradation when a component subtree fails.
Features
- Application Error Handling - Prevents entire applications from crashing by catching JavaScript errors and displaying a fallback user interface.
- Error Boundary Wrappers - Provides a component wrapper that implements necessary lifecycles to catch JavaScript errors within a subtree.
- Error Boundaries - Provides a mechanism to trigger error boundary fallbacks from asynchronous callbacks or event handlers.
- Asynchronous Error Handlers - Manages errors from asynchronous callbacks or event handlers to ensure they trigger a consistent fallback UI.
- Lifecycle Error Capturing - Uses componentDidCatch and getDerivedStateFromError to detect failures and update internal state.
- Component Tree Isolation - Isolates failures within specific parts of a component tree to maintain the availability of the rest of the application.
- Recovery Interfaces - Implements a custom replacement interface to keep the application functional after a component subtree crashes.
- Runtime Exception Handling - Intercepts unexpected errors during rendering or in asynchronous callbacks to maintain application stability.
- Fallback UI Renderers - Renders a custom replacement interface during a crash to provide a graceful error message instead of a blank screen.
- UI Fallback Switching - Toggles between normal children components and a custom fallback interface based on the presence of a caught error.
- Fallback UI Providers - Provides a component that replaces a crashed part of the user interface with a recovery screen.
- UI Graceful Degradation - Creates graceful degradation by replacing crashed component trees with custom error messages or recovery options.
- General Libraries - Component for catching and handling runtime errors.
