libraries you are happy that you discovered them

This page summarizes the projects mentioned and recommended in the original post on

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  • ts-pattern

    🎨 The exhaustive Pattern Matching library for TypeScript, with smart type inference.

    ts-pattern: (pattern matching)

  • ramda

    :ram: Practical functional Javascript

    I like ramda a lot. It's a really well-designed, functional utility library, and with currying it's easy to compose its different parts into beautiful code.

  • Appwrite

    Appwrite - The Open Source Firebase alternative introduces iOS support . Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!

  • ts-essentials

    All basic TypeScript types in one place 🤙

  • fp-ts

    Functional programming in TypeScript

  • io-ts

    Runtime type system for IO decoding/encoding

  • strong-mock

    Type safe mocking library for TypeScript

    Shameless plug, but feel free to try as an alternative.

  • ts-belt

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

    check ts-belt, if you want really good TS support (it contains much more functions than remeda and it has awesome performance) benchmarks:

  • Sonar

    Write Clean JavaScript Code. Always.. Sonar helps you commit clean code every time. With over 300 unique rules to find JavaScript bugs, code smells & vulnerabilities, Sonar finds the issues while you focus on the work.

  • wonka

    🎩 A tiny but capable push & pull stream library for TypeScript and Flow (by 0no-co)

  • robot

    🤖 A functional, immutable Finite State Machine library

    robot3: (finite state machines)

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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