typescript

# TypeScript Skill Expert assistance for TypeScript configuration and patterns. ## Capabilities - Configure tsconfig - Implement strict typing - Create utility types - Handle generics - Design type-safe APIs ## Configuration ```json // tsconfig.json { "compilerOptions": { "strict": true, "noUncheckedIndexedAccess": true, "exactOptionalPropertyTypes": true, "noImplicitReturns": true, "noFallthroughCasesInSwitch": true, "moduleResolution": "bundler", "esModuleInterop": true, "skipLibCheck": true } } ``` ## Utility Types ```typescript // Extract, Omit, Pick type UserWithoutPassword = Omit<User, 'password'>; // Conditional types type NonNullable<T> = T extends null | undefined ? never : T; // Mapped types type Readonly<T> = { readonly [P in keyof T]: T[P] }; ``` ## Target Processes - typescript-setup - type-safety - api-design