How To Handle Errors Like A Senior Dev

Error handling evolves from scattered try-catch blocks to a centralized service layer using the Result pattern. The tutorial demonstrates extracting business logic into reusable services, creating custom error types, and implementing type-safe error handling with discriminated unions. It covers building a custom Result type (returning either success or error) and using the Neverthrow library for more robust error management. The approach ensures compile-time safety by forcing developers to handle all possible error cases through TypeScript's type system, preventing dead code and unhandled errors.