typescript

To enforce TypeScript best practices during refactoring, apply strict patterns like const types and flat interfaces to establish a single source of truth. This prevents common pitfalls like excessive nesting and the overuse of 'any', ensuring type-safe code from the start.

The best way to eliminate 'any' for type safety is replacing it with 'unknown' and generics. This approach forces explicit type checking via type guards and utility types, ensuring robust code narrowing without losing flexibility.

Using const types creates a single source of truth for constants to improve autocomplete, while flat interfaces avoid excessive nesting to keep definitions readable. Together, these patterns improve overall TypeScript code quality and maintainability.

Yes, you can use utility types and type guards to safely narrow down 'unknown' types in TypeScript. This mechanism provides robust type narrowing by leveraging built-in utility types for concise type manipulation instead of unsafe 'any' usage.

Yes, this skill applies directly to development workflows involving TypeScript .ts and .tsx files. It enforces strict patterns for defining types, interfaces, and generics across these file extensions to ensure type-safe code.