Technology

TypeScript

Type-Safe Code with TypeScript

TypeScript is the standard language we use in all our projects. With static type checking, we write safer, more readable, and maintainable code.

  • Generics
  • Utility Types
  • Declaration Files
  • Strict Mode
  • Type Guards
  • Starting a new project in TypeScript

    TS is the default for every new project. Strict mode, ESLint rules and tsconfig templates ship from day one.

  • Migrating from a JavaScript project

    Gradual migration from existing JS code: file-by-file ".js → .ts", allowJs for mixed mode, and writing declaration files.

  • Library and SDK type definitions

    Writing DefinitelyTyped (@types/*) packages for JS libraries; producing internal type-safe SDKs.

  • API contract management

    Shared types between backend and frontend; runtime validation with Zod and automatic type derivation from OpenAPI.

  • Is strict mode recommended?

    Yes, always. `"strict": true` is our default. Migrations can start with strictNullChecks and noImplicitAny progressively.

  • Do you use `any`?

    No, `any` is banned in our projects. When the type is unclear we use `unknown` and narrow it; for legacy JS libraries we write declaration files when needed.

  • Does TypeScript impact performance?

    No runtime impact — TS is compile-time only. Build time can be affected on large projects; we use incremental compilation, project references and tsc --build.

  • How should tsconfig be set up?

    Strict mode + module: ESNext + target: ES2022 + moduleResolution: Bundler is the baseline. Path aliases (`@/*`) keep the project readable.

  • Extras for React + TypeScript?

    We prefer direct props interfaces over React.FC. For forms react-hook-form + Zod, for APIs Tanstack Query — type-safe end to end.

Let's bring your project to life with TypeScript.

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