typescript-error-handling

TypeScript catch blocks can be made safe by applying structured error handling patterns like typed catch clauses, error subclassing, and error.cause chaining to consistently map and propagate untyped exceptions.

The best way to structure TypeScript error hierarchies is by using error subclassing with consistent names and contextual data, ensuring errors are consistently mapped across API boundaries and user-facing messages.

Using Result types instead of throwing exceptions is ideal for library code and composable flows, providing structured, predictable error propagation that improves reliability and debuggability without relying on exception tracking.

Zod validation integrates with TypeScript error handling by applying robust validation schemas that capture and structure invalid data states, ensuring errors are consistently mapped and validated across application boundaries.

Structured error handling patterns apply directly to async flows in TypeScript by enforcing consistent error mapping and safe catch clauses, ensuring reliable propagation of failures across API boundaries and application code.

TypeScript does not reliably type exceptions because it lacks built-in structured error typing, which you fix by implementing error subclassing, hierarchies, and Result types to track failures and ensure consistent propagation.