TypeScript Development
Write safer, more maintainable JavaScript with TypeScript. We use static typing, advanced generics, and strict compiler checks to catch bugs at build time, improve editor tooling, and ship production code that teams can confidently refactor and scale.
interface ApiResponse<T> {
data: T;
status: 'success' | 'error';
message?: string;
}
interface User {
id: string;
email: string;
role: 'admin' | 'editor' | 'viewer';
permissions: Permission[];
}
type UserResponse =
ApiResponse<User>;
Interfaces That Model Your Domain
TypeScript interfaces define the shape of your data at compile time. Discriminated unions, literal types, and mapped types let you model complex business domains precisely. The compiler catches mismatches before code ever reaches production, turning your editor into a safety net.
- Structural typing — flexible yet strict
- Union and intersection types for precision
- Type narrowing with exhaustive checks
- Shared types between frontend and backend
async function fetchData<T>(
url: string,
schema: ZodSchema<T>
): Promise<T> {
const res = await fetch(url);
const json = await res.json();
return schema.parse(json);
}
// Usage — fully typed!
const users = await fetchData(
'/api/users',
userArraySchema
);
// users is User[] — compiler knowsGeneric Functions with Runtime Validation
TypeScript generics let you write reusable, type-safe utilities that work with any data shape. Pair them with Zod for runtime schema validation, and you get end-to-end type safety — compile-time checks in your code plus runtime checks at API boundaries. No more silent data mismatches.
- Generics for reusable, typed abstractions
- Zod schemas for runtime data validation
- Inferred types from schemas — no duplication
- End-to-end type safety with tRPC
TypeScript vs JavaScript vs Flow
| Feature | TypeScript | JavaScript | Flow |
|---|---|---|---|
| Type System | Structural, advanced | Dynamic only | Structural, limited |
| IDE Support | Best-in-class IntelliSense | Basic autocomplete | VS Code extension |
| Ecosystem Adoption | 95%+ npm packages typed | Universal | Declining |
| Refactoring Safety | Compiler-verified renames | Manual / risky | Partial support |
| Generics | Full generic system | Not available | Supported |
| Build Step Required | Yes (tsc / bundler) | None needed | Yes (flow-remove-types) |
Tools We Use Every Day
TypeScript
ESLint
Prisma
ts-nodeReady to Go Type-Safe?
Eliminate runtime surprises — our TypeScript-first team delivers end-to-end type safety from database to UI, with Zod validation and tRPC for zero-gap APIs.