ReactiveX/rxjs

---

ReactiveX/rxjs.json

{
  "createdAt": "2015-03-15T06:17:10Z",
  "defaultBranch": "master",
  "description": "A reactive programming library for JavaScript",
  "fullName": "ReactiveX/rxjs",
  "homepage": "https://rxjs.dev",
  "language": "TypeScript",
  "name": "rxjs",
  "pushedAt": "2025-02-23T20:54:32Z",
  "stargazersCount": 31557,
  "topics": [
    "javascript",
    "rxjs"
  ],
  "updatedAt": "2025-11-24T17:53:34Z",
  "url": "https://github.com/ReactiveX/rxjs"
}

RxJS: Reactive Extensions For JavaScript

RxJS 8 Monorepo

Look for RxJS and related packages under the [/packages]!(/packages/) directory. Applications like the rxjs.dev documentation site are under the [/apps]!(/apps/) directory.

[Apache 2.0 License]!(LICENSE.txt)

• [Code of Conduct]!(CODE_OF_CONDUCT.md)
• [Contribution Guidelines]!(CONTRIBUTING.md)
• [Maintainer Guidelines]!(apps/rxjs.dev/content/maintainer-guidelines.md)
• API Documentation

Reactive Extensions Library for JavaScript. This is a rewrite of Reactive-Extensions/RxJS and is the latest production-ready version of RxJS. This rewrite is meant to have better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.

Versions In This Repository

• master - This is all of the current work, which is against v8 of RxJS right now
• 7.x - This is the branch for version 7.X
• 6.x - This is the branch for version 6.X

Most PRs should be made to master.

Important

By contributing or commenting on issues in this repository, whether you’ve read them or not, you’re agreeing to the [Contributor Code of Conduct]!(CODE_OF_CONDUCT.md). Much like traffic laws, ignorance doesn’t grant you immunity.

Development

Because of this issue we’re using yarn. (Basically the docs app uses @types/jasmine, and the package uses @types/mocha and they get hoisted to the top level by npm install with workspaces, and then TypeScript vomits everywhere when you try to build).

1. cd to the repository root
2. yarn install to install all dependencies
3. yarn workspace rxjs test will run the RxJS test suite
4. yarn workspace rxjs.dev start will start the rxjs.dev documentation site local development server