Introduction
TypeScript is a tool for maintaining large JavaScript projects. High code quality requires strict patterns. These methods prevent errors as projects grow.
Strict Mode
Enable strict mode in your config file. This enables a suite of checks. The system catches common bugs during compilation.
Avoid any
The any type removes the benefits of TypeScript. Use unknown if the type is unclear.
- any allows any operation without safety.
- unknown requires center checks before use.
Runtime Validation
TypeScript types do not exist at runtime. Use schema validation for external data from APIs or forms. Tools like Zod help ensure data matches your expectations.
Utility Types
Master utility types like Pick and Omit. These allow you to create new types from existing ones. This practice reduces duplication.
Conclusion
TypeScript requires discipline to be effective. Enforce strictness and avoid any. Validate data at the boundaries to build robust applications.