Rare find

Emittery. A way for different parts of your code to send messages to each other.

github.com/sindresorhus/emittery

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

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Updates

May 2026

Fix CI May 24
Avoid redundant map lookups May 24
Use private fields for internal state May 24
Readme tweaks May 4

March 2026

Release — Mar 4
2.0.0 Mar 4
Tweaks Mar 4
Add FAQ about synchronous emit Mar 3
Add `init`/`deinit` lifecycle hooks Mar 3

February 2026

Require Node.js 22 Feb 28
Fix `emit()` silently dropping errors from multiple listeners Feb 28
Document and test async listener scheduling behavior Feb 27
Fix Emittery not working when wrapped in a Proxy Feb 27
Fix debug logger emitting noise for internal meta events Feb 27
Fix mixin decorator to work with TC39 standard decorator syntax Feb 27
Fix `emitMetaEvent` breaking async `emit()` overrides in subclasses Feb 27
Change all listeners to receive a unified `{name, data?}` object Feb 27
Release — Feb 27
1.2.1 Feb 27
Fix `emitSerial()` not delivering events to async iterators Feb 27

June 2025

Release — Jun 20
1.2.0 Jun 20
Add support for filter predicate in `once()` (#124) Jun 20

January 2025

Release — Jan 27

February 2024

Release — Feb 13

January 2024

Release — Jan 29

November 2022

Release — Nov 6

September 2022

Release — Sep 6

August 2022

Release — Aug 25
Release — Aug 25