typescript-write

Strict type safety in TypeScript starts with enabling strict mode in tsconfig.json, preferring unknown over any, using discriminated unions for type narrowing, and adding explicit return types to functions. This prevents runtime errors and catches type mismatches at compile time.

Use barrel exports (index.ts files) to re-export types and functions, maintain dedicated types files, and configure path aliasing in tsconfig.json for clean import paths. This reduces import clutter and makes refactoring easier across large projects.

Implement custom error classes, use runtime validation with tools like Zod to validate external data, and combine async/await with try-catch blocks. This ensures predictable error handling and type-safe data at runtime.

Yes. Apply strict TypeScript configuration, functional components, server components in Next.js, and type-safe data-fetching strategies. These patterns scale across React/Next.js environments while maintaining code quality and type safety.

Configure ESLint with the TypeScript plugin, enable strict compiler options including noImplicitAny and noUnusedLocals, and use modern ES6+ features like destructuring and optional chaining. This automates code-quality enforcement across your team.