option-t

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

v53.0.0 URL: https://unpkg.com/option-t@53.0.0/esm/index.js

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either maybe maybe-type nullable option option-type result result-type

@mobily/ts-belt

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

v3.13.1 URL: https://unpkg.com/@mobily/ts-belt@3.13.1/dist/cjs/index.js

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typescript flow functional-programming functional programming fp monad option option-type result result-type array utility utils

ts-safe

A functional, type-safe utility library for elegant error handling and asynchronous operations in JavaScript/TypeScript.

v0.0.4 URL: https://unpkg.com/ts-safe@0.0.4/dist/index.js

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typescript javascript functional-programming fp chain type-safe error-handling async promise monad result-type pipeline effect composable utility map railway

go-errors

Go-style error handling for TypeScript with full type safety, async, and fetch support

v2.0.0 URL: https://unpkg.com/go-errors@2.0.0/dist/src/index.js

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typescript error-handling golang go errors functional async promise result-type exception-handling error-monad fetch http-client api-client type-safe-fetch

@patina/core

Type-safe nothing-handling and error-handling library

v3.0.0 URL: https://unpkg.com/@patina/core@3.0.0/lib/index.cjs

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typescript error-handling option-type result-type