ReactiveX/rxjs

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A reactive programming library for JavaScript

Stars: 31.7k
Forks: 3k
Open beginner issues: 0
Indexed issues: 126

Dominant language: TypeScript
License: Apache-2.0
Last GitHub push: Aug 5, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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126 open issues indexed

Polyfill refuses to initialize when AbortController is a subclass Open

Difficulty 3/5 Half a day Newbie friendliness 68/100

ReactiveX/rxjs#7638 · Opened Sep 16, 2026
[combineLatest] loses the tuple shape of array-literal sources, unlike [forkJoin] Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

ReactiveX/rxjs#7637 · Opened Sep 16, 2026
ColdObservable.from(promise) never delivers a rejection to the subscriber Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ReactiveX/rxjs#7636 · Opened Sep 16, 2026
provenance missing Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ReactiveX/rxjs#7627 · Opened Aug 7, 2026
tsconfig warnings on Typescript v6 in VSCode Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7598 · 1 comment · 3 reactions · Opened Apr 20, 2026
AsapScheduler can interrupt random intervals Open

Difficulty 3/5 1-2 days Newbie friendliness 56/100

ReactiveX/rxjs#7593 · 1 comment · Opened Feb 14, 2026
Outdated dependencies detected in package Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ReactiveX/rxjs#7587 · 1 comment · 1 reaction · Opened Dec 11, 2025
Async subject and ReplaySubject still accept next messages Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7576 · Opened Oct 27, 2025
`.next()` is available in observables returned by `.pipe()` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ReactiveX/rxjs#7543 · 7 comments · 5 reactions · Opened Apr 1, 2025
scan() operator unexpectedly resets or fails to accumulate emissions across multiple emissions Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ReactiveX/rxjs#7540 · 1 comment · Opened Mar 21, 2025
7.8.2 introduces breaking changes Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

ReactiveX/rxjs#7536 · 6 comments · 19 reactions · Opened Mar 3, 2025
buffer operator emits value on closingNotifier complete Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

ReactiveX/rxjs#7528 · Opened Jan 22, 2025
forkJoin/combineLatest works differently from 6.6.2 to 6.6.3 and even latest version 7.8.1 Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ReactiveX/rxjs#7517 · 2 comments · Opened Nov 21, 2024
Error on stackblitz with rxjs version set to next Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7510 · 1 comment · Opened Oct 26, 2024
multiple using of tap() causes a false error Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

ReactiveX/rxjs#7498 · 1 comment · Opened Sep 11, 2024
innerFrom treats anything with "length" property as an array, even if this anything has iterable implemented Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ReactiveX/rxjs#7497 · Opened Aug 31, 2024
Simplify the Observable pipe with the help of Typescript Variadic Functions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7481 · 4 comments · 3 reactions · Opened Jun 11, 2024
distintUntilChanged: new overload missing in bundle Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

ReactiveX/rxjs#7475 · 2 comments · 1 reaction · Opened May 23, 2024
Interface SchedulerLike not exported from index file Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

ReactiveX/rxjs#7473 · Opened May 16, 2024
tap-complete not called for last observable inside zip Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7467 · 3 comments · Opened Apr 23, 2024
Teardown and error/complete messages are out of order Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7443 · 3 comments · 1 reaction · Opened Feb 20, 2024
ObservableInput<T> should support Thennable<T>, not PromiseLike<T> Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7437 · 1 comment · Opened Feb 1, 2024
Bumping versions to fix vulnerabilities Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7333 · 5 comments · Opened Sep 8, 2023
Feature request for `first` et al: Configurable empty errors. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7330 · 1 reaction · Opened Sep 6, 2023
Synchronous execution of disposer Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ReactiveX/rxjs#7230 · 6 comments · Opened Mar 23, 2023
debounceTime + 0 + asapScheduler doesn't emit in special case Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ReactiveX/rxjs#7205 · 9 comments · Opened Mar 3, 2023
RFC: A new way of "piping" Open

8.x 9.x AGENDA ITEM

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#7203 · 39 comments · 70 reactions · Opened Mar 1, 2023
We forgot to deprecate the resultSelector for combineLatest Open

ReactiveX/rxjs#7169 · 3 comments · 2 reactions · 1 assignee · Opened Jan 24, 2023
Infinite loop in closed async actions Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7148 · 1 reaction · Opened Jan 13, 2023
TestScheduler can't be reused ? Doc is unclear. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ReactiveX/rxjs#7141 · Opened Jan 3, 2023
expand oparator have wrong typing Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7131 · 4 comments · 1 reaction · Opened Dec 10, 2022
Bug: onUnhandledError and onStoppedNotification are handled differently Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ReactiveX/rxjs#7126 · Opened Dec 3, 2022
Incorrect Intellisense description for `forkJoin` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ReactiveX/rxjs#7100 · 6 comments · 6 reactions · Opened Oct 25, 2022
auditTime(0, animationFrameScheduler) stops emiting unexpectedly. Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ReactiveX/rxjs#7096 · 8 comments · 6 reactions · Opened Oct 21, 2022
withLatestFrom completes with no emissions when input observable has delay Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ReactiveX/rxjs#7068 · 5 comments · 2 reactions · Opened Sep 24, 2022
Marble testing of interval with shareReplay pipe crashes the test Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#7035 · Opened Aug 7, 2022
animationFrameScheduler stops working unexpectedly Open

7.x 8.x bug

ReactiveX/rxjs#7018 · 14 comments · 6 reactions · 1 assignee · Opened Jul 8, 2022
animationFrames() has memory leak. Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

ReactiveX/rxjs#6946 · 3 comments · Opened Apr 24, 2022
animationFrameScheduler with delay causes incorrect behavior (and exception) Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#6891 · 1 reaction · Opened Mar 14, 2022
Kill dependabot because it's stupid. Open

7.x 8.x bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

ReactiveX/rxjs#6877 · 1 comment · 4 reactions · Opened Mar 9, 2022
Implement Symbol.asyncIterator on Observable Open

8.x

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#6857 · 3 comments · 4 reactions · Opened Mar 3, 2022
esbuild is unable to tree-shake rxjs under node platform Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

ReactiveX/rxjs#6856 · 3 comments · Opened Mar 3, 2022
animationFrameScheduler incorrect behavior Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ReactiveX/rxjs#6854 · 1 comment · 3 reactions · Opened Mar 2, 2022
animationFrameScheduler.schedule work parameter not running Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ReactiveX/rxjs#6843 · Opened Feb 22, 2022
RxJs 7 setting X-Requested-With by default when RxJs 6 did not Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ReactiveX/rxjs#6827 · 5 comments · 6 reactions · Opened Feb 13, 2022
Use `reportError` to deal with unhandled errors Open

8.x

Difficulty 3/5 1-2 days Newbie friendliness 42/100

ReactiveX/rxjs#6795 · 2 comments · 1 reaction · Opened Feb 4, 2022
Monorepo and Splitting Out To Different Packages Open

8.x AGENDA ITEM

Difficulty 5/5 Over a week Newbie friendliness 25/100

ReactiveX/rxjs#6786 · 6 comments · 7 reactions · Opened Jan 28, 2022
TypeError: You provided an invalid object where a stream was expected. Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ReactiveX/rxjs#6775 · 7 comments · Opened Jan 17, 2022
debounceTime does not emit when queueScheduler is used Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ReactiveX/rxjs#6764 · Opened Jan 13, 2022
shareReplay with refCount stops working Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ReactiveX/rxjs#6760 · 9 comments · 3 reactions · Opened Jan 12, 2022

ReactiveX/rxjs

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