TypeScript Type Safety

Overview

Zero tolerance for any types. Every any is a runtime bug waiting to happen.

Replace any with proper types using interfaces, unknown with type guards, or generic constraints. Use @ts-expect-error with explanation only when absolutely necessary.

When to Use

Use when you see:

• : any in function parameters or return types
• as any type assertions
• TypeScript errors you're tempted to ignore
• External libraries without proper types
• Catch blocks with implicit any