JavaScript Immutable Projects

Immer

142 27,013 7.1 JavaScript

Create the next immutable state by mutating the current one

Project mention: Comparing React state tools: Mutative vs. Immer vs. reducers | dev.to | 2024-05-01

Immer is a lightweight package that simplifies working with immutable states. Immutable data structures ensure efficient data change detection, making it easier to track modifications. Additionally, they enable cost-effective cloning by sharing unchanged parts of a data tree in memory.

atomic

12 32 6.8 JavaScript

Write ClojureScript in JavaScript without a transpiler. (by mlanza)

Project mention: Should all Clojure functions be polymorphic by default? | /r/Clojure | 2023-06-03

I wanted ClojureScript, without transpilation, in the browser so badly I implemented much of it in plain JS. But JS still lacks first-class protocols (although there is a T39 proposal for them) so I have to implement protocols first. And I can tell you from having implemented much of Clojure myself in plain JS that it's protocols all the way down. 80% of my library are types and their protocols.

SurveyJS

surveyjs.io featured

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

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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