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resize-observer-polyfill

A polyfill for the Resize Observer API

v1.5.1, 9 Dec 2018MITESM + CommonJSTypes: BundledPolyfills and shims
$ npm install resize-observer-polyfill

Key numbers

As of 25 Sept 2026
Weekly downloads
10.6m
+53% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
7 years ago
v1.5.1
GitHub stars
1.8k
129 forks
Open issues / PRs
33 / 26
Contributors
-
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
05m10m15mSept 2025Mar 2026Sept 2026High 14.9m (25 Aug 2026)Low 4.4m (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.

10,578,664 downloads last week, 52,478,183 in the last month. The 12-month change of +53% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
017 in total
Latest version
1.5.1, 9 Dec 20187 years ago
First published
12 Sept 2016
Last push to GitHub
27 Jan 20231,336 days before the snapshot
Repository archived
No
Open issues
33
Open pull requests
26
Commits, last 52 weeks
0
Dependents on npm
5,179

Major versions

  1. v1 first release 1.0.0, 12 Sept 2016

Recent releases

VersionPublished
1.5.19 Dec 2018
1.5.016 Nov 2017
1.4.23 Apr 2017
1.4.117 Feb 2017
1.4.016 Feb 2017
1.3.218 Dec 2016
1.3.116 Dec 2016
1.3.016 Dec 2016
1.2.18 Nov 2016
1.2.02 Nov 2016
1.1.519 Oct 2016
1.1.413 Oct 2016
1.1.37 Oct 2016
1.1.222 Sept 2016
Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
144 kB
Dependencies (0)
None
npm install resize-observer-polyfill

CDN

jsDelivr: 8.6m requests in 30 days
  • jsDelivrhttps://cdn.jsdelivr.net/npm/resize-observer-polyfill@1.5.1/
  • unpkghttps://unpkg.com/resize-observer-polyfill@1.5.1/
  • esm.shhttps://esm.sh/resize-observer-polyfill@1.5.1
PackageWeekly downloadsGzipLast releaseModuleComparison
@juggle/resize-observer4.6m-4 years agoESM + CommonJS-
Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.