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Learn how to implement type-safe constants in Swift TurboModules for React Native applications in this 12-minute tutorial. Discover the dedicated approach TurboModules provide for exposing unchanging native values to JavaScript with full end-to-end type safety using React Native Codegen. Explore why `getConstants` receives special treatment by Codegen and how it generates strongly typed native interfaces, starting from the TypeScript specification. Follow along as the tutorial demonstrates exposing Swift constants to Objective-C, implementing required native methods, and comparing this type-safe approach with traditional untyped dictionary returns. Master the process of accessing these constants from JavaScript while understanding the caching optimization techniques employed in React Native's core modules.
