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fbemitter

Facebook's EventEmitter is a simple emitter implementation that prioritizes speed and simplicity. It is conceptually similar to other emitters like Node's EventEmitter, but the precise APIs differ. More complex abstractions like the event systems used on

v3.0.0, 9 Jan 2021BSD-3-ClauseCommonJSTypes: None
$ npm install fbemitter

Key numbers

As of 25 Sept 2026
Weekly downloads
1.9m
+27% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
1
Direct, from package.json
Last release
5 years ago
v3.0.0
GitHub stars
-
Open issues / PRs
- / -
Contributors
-
Commits, last 52 weeks
-

Downloads

Last week 2026-09-15 to 2026-09-21
01m2m3mSept 2025Mar 2026Sept 2026High 2.6m (9 Jun 2026)Low 850.4k (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

1,901,632 downloads last week, 8,480,530 in the last month. The 12-month change of +27% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
07 in total
Latest version
3.0.0, 9 Jan 20215 years ago
First published
12 Aug 2015
Last push to GitHub
-
Repository archived
-
Open issues
-
Open pull requests
-
Commits, last 52 weeks
-
Dependents on npm
-

Major versions

  1. v3 first release 3.0.0, 9 Jan 2021
  2. v2 first release 2.0.0, 12 Aug 2015

Recent releases

VersionPublished
3.0.09 Jan 2021
2.1.13 Sept 2016
2.1.02 Sept 2016
2.0.32 Sept 2016
2.0.23 Feb 2016
2.0.13 Jan 2016
2.0.012 Aug 2015
Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
21 kB
Dependencies (1)
fbjs
npm install fbemitter
  • jsDelivrhttps://cdn.jsdelivr.net/npm/fbemitter@3.0.0/
  • unpkghttps://unpkg.com/fbemitter@3.0.0/
  • esm.shhttps://esm.sh/fbemitter@3.0.0
Sources: npm registry, npm downloads API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): GitHub data not fetched yet; no category.