typescript-best-practices

To make illegal states unrepresentable in TypeScript, use discriminated unions and branded types to enforce type-first development. This prevents invalid data structures at compile time, ensuring robust type safety across all file operations.

The best way to validate runtime data in TypeScript is integrating Zod for schema definition and data validation. Zod bridges compile-time type safety and runtime checks, ensuring external data matches your defined schemas.

Refactor JavaScript code to type-safe TypeScript by applying type-first development principles. Define types and interfaces before implementation, enable strict mode, and implement exhaustive handling to ensure all code paths are safely covered.

Yes, this TypeScript refactoring approach applies to all TypeScript and JavaScript file operations, especially when paired with React best practices. It enforces strict mode, const assertions, and exhaustive handling suitable for React components.

You need const assertions and exhaustive handling in TypeScript when enforcing strict type safety and preventing unhandled states. These techniques ensure all possible union variants are processed, making your codebase maintainable and error-resistant.