Back to blog
Apr 5, 20249 min read

TypeScript Best Practices for Scalable Codebases

Write safer, more maintainable TypeScript by following proven patterns for typing, architecture, and tooling.

TypeScriptBest PracticesArchitecture
DF
Full-Stack Developer
TypeScript code editor with type hints and interfaces

TypeScript shines when you model your domain explicitly. Good types act as living documentation and prevent entire classes of bugs.

TypeScript interfaces and type aliases in an editor
Well-designed types make code easier to reason about

Avoid the any Type

Using any defeats the purpose of TypeScript. Instead, use unknown, generics, or proper interfaces to keep your code type-safe.

  • Prefer interfaces or type aliases over any
  • Use strict mode in tsconfig
  • Leverage generics for reusable utilities
  • Validate external data at runtime
Types are not overhead — they are leverage.