TypeScript

Route to Sub-skills

→ Type system (unknown/any, narrowing, discriminated unions, mapped types…) → type-system/ sub-skill → Zod (schema validation, transforms, coercion, branded types…) → zod/ sub-skill → JavaScript conventions (naming, this-handling, barrel files, arrays, null/undefined) → javascript skill → Design patterns (Strategy, Factory, Builder, Decorator, Mixin…) → oop-principles skill → SOLID principles (SRP, OCP, LSP, ISP, DIP) → oop-principles skill

Error Handling