Modernizing React Native’s JavaScript
summary
React Native moves view configs from slow runtime reflection into build-time codegen, bundling precomputed configs so startup no longer recalculates every component. The pipeline generates native interfaces from Flow/TypeScript schemas, provides end-to-end type safety for props, commands and native modules, and enables typed autocall commands and C++ perf paths. Old bridge APIs are deprecated: direct UIManager calls and findNodeHandle go away in favor of ref.measure and ref forwarding; Fabric uses the new paths.
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chapters (10)
- 0:00Introduction
- 2:22View rendering process
- 5:53Problems with view configs
- 9:09Automated code generation
- 12:04Performance and safety
- 13:45Deprecated features
- 17:28New APIs for commands
- 20:04Deprecating findNodeHandle
- 24:29Forward ref migration
- 27:24Conclusion and summary
