Why TypeScript is Non-Negotiable for Enterprise Software

The Cost of any

Every any type in your codebase is a deferred bug. It's a promise to your future self that you'll "figure it out later." Later never comes.

What We've Seen in Production

In our audits of enterprise codebases, we consistently find:

• 40% of runtime errors trace back to type mismatches that TypeScript would have caught.
• Onboarding time doubles when new developers can't trust the type signatures.
• Refactoring becomes impossible because nobody knows what a function actually returns.

The BWS TypeScript Standard

Every project we deliver follows strict TypeScript conventions:

// Strict interfaces for all domain models
interface Order {
  id: string;
  customer: Customer;
  items: OrderItem[];
  status: OrderStatus;
  createdAt: Date;
  totalAmount: number;
}
 
// Discriminated unions for state management
type OrderStatus =
  | { type: 'pending' }
  | { type: 'processing'; startedAt: Date }
  | { type: 'shipped'; trackingId: string }
  | { type: 'delivered'; deliveredAt: Date };

The Rules

1. No any — Use unknown if you truly don't know the type.
2. Strict mode always on — "strict": true in tsconfig.json.
3. Interfaces over types — For public API contracts.
4. Zod for runtime validation — Type safety doesn't stop at compile time.

The upfront investment in types pays dividends in reliability, speed of development, and team confidence.