rxjs v7.8.1
RxJS 6 Alpha
FOR V 5.X PLEASE GO TO STABLE BRANCH
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.
- Code of Conduct
- Contribution Guidelines
- Maintainer Guidelines
- Creating Operators
- API Documentation (WIP)
Versions In This Repository
- master - commits that will be included in the next major release (breaking changes)
- next - commits that will be included in the next minor or patch release
Most PRs should be made to master, unless you know it is a breaking change.
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. Much like traffic laws, ignorance doesn't grant you immunity.
Installation and Usage
ES6 via npm
npm install rxjs@alpha
To import the entire core set of functionality:
import Rx from 'rxjs/Rx';
Rx.Observable.of(1,2,3)
To import only what you need by patching (this is useful for size-sensitive bundling):
import { Observable, Subject, ReplaySubject } from 'rxjs';
import { from, of, range } from 'rxjs/create';
import { map, filter, switchMap } from 'rxjs/operators';
range(1, 200)
.pipe(filter(x => x % 2 === 1), map(x => x + x))
.subscribe(x => console.log(x));
CommonJS via npm
To install this library for CommonJS (CJS) usage, use the following command:
npm install rxjs@alpha
(Note: destructuring available in Node 8+)
const { Observable, Subject, ReplaySubject } = require('rxjs');
const { from, of, range } = require('rxjs/create');
const { map, filter, switchMap } = require('rxjs/operators');
range(1, 200)
.pipe(filter(x => x % 2 === 1), map(x => x + x))
.subscribe(x => console.log(x));
CDN
For CDN, you can use unpkg:
https://unpkg.com/rxjs/bundles/Rx.min.js
Node.js Usage:
var Rx = require('@reactivex/rxjs');
Rx.Observable.of('hello world')
.subscribe(function(x) { console.log(x); });
Goals
- Smaller overall bundles sizes
- Provide better performance than preceding versions of RxJS
- To model/follow the Observable Spec Proposal to the observable.
- Provide more modular file structure in a variety of formats
- Provide more debuggable call stacks than preceding versions of RxJS
Building/Testing
npm run build_all
- builds everythingnpm test
- runs tests
npm run info
will list available scripts (there are a lot LOL)
Performance Tests
Run npm run build_perf
or npm run perf
to run the performance tests with protractor
.
Run npm run perf_micro [operator]
to run micro performance test benchmarking operator.
Adding documentation
RxNext uses ESDoc to generate API documentation. Refer to ESDoc's documentation for syntax. Run npm run build_docs
to generate.
At the moment we are trying to improve the documentation. For this purpose the Documentation is in a seperate GitHub Repostory. For a quick instruction take a look at the documentation guidelines. We are really happy about any type of contributions!
Generating PNG marble diagrams
The script npm run tests2png
requires some native packages installed locally: imagemagick
, graphicsmagick
, and ghostscript
.
For Mac OS X with Homebrew:
brew install imagemagick
brew install graphicsmagick
brew install ghostscript
- You may need to install the Ghostscript fonts manually:
- Download the tarball from the gs-fonts project
mkdir -p /usr/local/share/ghostscript && tar zxvf /path/to/ghostscript-fonts.tar.gz -C /usr/local/share/ghostscript
For Debian Linux:
sudo add-apt-repository ppa:dhor/myway
apt-get install imagemagick
apt-get install graphicsmagick
apt-get install ghostscript
For Windows and other Operating Systems, check the download instructions here:
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