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>`.

v55.1.0 URL: https://unpkg.com/option-t@55.1.0/esm/index.js

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

nochoices

Full featured implementation of options into typescript.

v1.1.5 URL: https://unpkg.com/nochoices@1.1.5/dist/mod/index.js

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option optional maybe some none nullable

@softwareventures/nullable

Pure functional utilities for nullable types

v3.2.0 URL: https://unpkg.com/@softwareventures/nullable@3.2.0/index.js

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TypeScript functional lambda nullable option

nullable-ts

Nullable type and helper functions for typescript

v1.3.1 URL: https://unpkg.com/nullable-ts@1.3.1/dist/index.js

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null nullable optional undefined isnull isnotnull typescript

maybetyped

Well-typed functional Maybe monad

v1.6.0 URL: https://unpkg.com/maybetyped@1.6.0/dist/index.js

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typescript types optional maybe monad nullable