Type-safe JavaScript development and advanced type system.
Use optional chaining (?.), nullish coalescing (??), type narrowing with conditionals, and strict null checks to handle nullable values safely.
Both define object shapes, but interfaces can be extended/merged while types support unions, intersections, and mapped types.
Start with tsconfig set to loose settings, rename files to .ts incrementally, add types to new code first, and tighten strictness over time.
Use runtime validation libraries like Zod, Yup, or io-ts to validate API responses and generate TypeScript types from the schemas.
Generics allow you to create reusable components that work with multiple types while maintaining type safety.
Utility types are built-in generic types that transform other types, like making all properties optional or selecting specific properties.
Strict mode enables a set of type-checking options that catch more potential errors, including strict null checks and implicit any errors.
Patterns include exhaustive switch checks, branded types for domain concepts, readonly for immutability, and discriminated unions for state.
Join our network of elite AI-native engineers.