Option-type Packages

A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

🔧 Fast, modern, and practical utility library for FP in TypeScript.

🤓 Tifi solves a problem of the existence of both `undefined` and `null`. It's inspired by the OCaml/Reason utilities for various data types.

Type-safe nothing-handling and error-handling library

Type-safe error-handling library for TypeScript