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array.prototype.findlastindex

An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

v1.2.6, 14 Mar 2025MITCommonJSTypes: NonePolyfills and shims
$ npm install array.prototype.findlastindex

Key numbers

As of 25 Sept 2026
Weekly downloads
39.8m
+77% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
7
Direct, from package.json
Last release
1 year ago
v1.2.6
GitHub stars
3
3 forks
Open issues / PRs
1 / 1
Contributors
1
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
020m40m60mSept 2025Mar 2026Sept 2026High 54m (25 Aug 2026)Low 14.8m (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.

39,848,796 downloads last week, 180,007,754 in the last month. The 12-month change of +77% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
010 in total
Latest version
1.2.6, 14 Mar 20251 year ago
First published
14 Jul 2021
Last push to GitHub
14 Mar 2025559 days before the snapshot
Repository archived
No
Open issues
1
Open pull requests
1
Commits, last 52 weeks
0
Dependents on npm
483

Major versions

  1. v1 first release 1.0.0, 14 Jul 2021

Recent releases

VersionPublished
1.2.614 Mar 2025
1.2.519 Mar 2024
1.2.46 Feb 2024
1.2.330 Aug 2023
1.2.23 Nov 2022
1.2.111 Apr 2022
1.2.011 Apr 2022
1.1.11 Oct 2021
1.1.07 Aug 2021
1.0.014 Jul 2021
Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
>= 0.4
Runtimes
-
Unpacked size (npm)
30 kB
Dependencies (7)
call-bindes-errorscall-boundes-abstractes-object-atomsdefine-propertieses-shim-unscopables
npm install array.prototype.findlastindex
  • jsDelivrhttps://cdn.jsdelivr.net/npm/array.prototype.findlastindex@1.2.6/
  • unpkghttps://unpkg.com/array.prototype.findlastindex@1.2.6/
  • esm.shhttps://esm.sh/array.prototype.findlastindex@1.2.6
PackageWeekly downloadsGzipLast releaseModuleComparison
weakmap-polyfill1m-5 years agoCommonJS-
object-keys79.8m-7 years agoCommonJS-
array-buffer-byte-length63.3m-1 year agoCommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.