JavaScript fantasy-land

Open-source JavaScript projects categorized as fantasy-land
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Sanctuary Functional programming Functional Monad JavaScript
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Top 3 JavaScript fantasy-land Projects

fantasy-land

  1. fantasy-land

    Specification for interoperability of common algebraic structures in JavaScript

    Project mention: JavaScript's Missed Opportunity: Async/Await, Optional Chaining, and flatMap are the same thing | dev.to | 2025-02-19

    (This was one of the purposes of the Fantasy Land specification, to define common interfaces for generalized operations that could benefit from language-syntax-support.)

  2. SurveyJS

    JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.

    SurveyJS logo

  3. Sanctuary

    :see_no_evil: Refuge from unsafe JavaScript

  4. Fluture

    🦋 Fantasy Land compliant (monadic) alternative to Promises

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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JavaScript fantasy-land related posts

  • JavaScript's Missed Opportunity: Async/Await, Optional Chaining, and flatMap are the same thing

    1 project | dev.to | 19 Feb 2025

  • Ask HN: Freelancer? Seeking freelancer? (February 2024)

    5 projects | news.ycombinator.com | 1 Feb 2024

  • How elaborate could/should a transducers combiner function be?

    2 projects | /r/functionalprogramming | 5 Jan 2023

  • General Functional Programming Resources

    3 projects | /r/functionalprogramming | 17 Dec 2022

  • FP for web/mobile apps in 2022?

    5 projects | /r/functionalprogramming | 2 Aug 2022

  • should i learn design patterns?

    1 project | /r/node | 7 Jul 2022

  • Design Patterns Book for functional programming?

    1 project | /r/functionalprogramming | 5 Jun 2022
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    getstream.io | 15 Jul 2025
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Index

What are some of the best open-source fantasy-land projects in JavaScript? This list will help you:

# Project Stars
1 fantasy-land 10,202
2 Sanctuary 3,054
3 Fluture 2,489

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