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Life & fun · January 11, 2021

Hacn – a React “monad” implemented using F#/Fable

A "monad" or DSL for creating React components using Fable and F# computation expressions - pj/hacn

Hacn – a React “monad” implemented using F#/Fable launched on January 11, 2021 with 21 votes, #952 of 3,157 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

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In plain words

Hacn is a React monad implementation built with F# and compiled to JavaScript via Fable. It provides a functional programming approach to managing state and side effects in React applications. The project is designed for developers familiar with functional programming who want to apply monadic patterns to React component logic. It's available as open-source code on GitHub.

written from the facts on this page · September 2026

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