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This skill teaches you how to handle errors in TypeScript without relying on try/catch blocks. It focuses on using fp-ts Either and TaskEither types to make error handling more predictable and type-safe. Ideal for building APIs, services, and accumulating validation errors. It promotes treating errors as data values rather than exceptions, ensuring cleaner and more maintainable code.

This skill provides a quick reference for fp-ts types in TypeScript. It helps users decide between Option, Either, Task, and TaskEither types based on whether operations are async or involve errors. It includes common imports, one-line patterns for wrapping nullable values, and pattern matching examples. Ideal for developers needing type selection guidance or import statements for functional programming tasks.