Gathering detailed insights and metrics for es-iterator-helpers
Gathering detailed insights and metrics for es-iterator-helpers
An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.
Installations
npm install es-iterator-helpersReleases
Unable to fetch releases
Developer
Developer Guide
BETA
Module System
CommonJS, ESM
Min. Node Version
>= 0.4
Typescript Support
No
Node Version
23.1.0
NPM Version
10.9.0
Statistics
15 Stars
104 Commits
2 Forks
4 Watching
3 Branches
3 Contributors
Updated on 28 Nov 2024
Languages
JavaScript (100%)
Total Downloads
Cumulative downloads
Total Downloads
626,729,327
Last day
-2.6%
2,757,343
Compared to previous day
Last week
3%
14,668,970
Compared to previous week
Last month
12.6%
61,481,398
Compared to previous month
Last year
666.5%
554,399,109
Compared to previous year
Daily Downloads
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dependencies
15
Versions
es-iterator-helpers 
An ESnext spec-compliant sync iterator helpers shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API “multi” interface. It works in an ES3-supported environment and complies with the iterator helpers spec and the iterator sequencing spec.
Because the Iterator.prototype methods depend on a receiver (the this value), the main export in each subdirectory takes the iterator to operate on as the first argument.
The main export of the package itself is simply an array of the available directory names. It’s sole intended use is for build tooling and testing.
Supported things
IteratorconstructorIterator.prototypeIterator.concatIterator.fromIterator.zipIterator.zipKeyedIterator.prototype.constructorIterator.prototype.dropIterator.prototype.everyIterator.prototype.filterIterator.prototype.findIterator.prototype.flatMapIterator.prototype.forEachIterator.prototype.mapIterator.prototype.reduceIterator.prototype.someIterator.prototype.takeIterator.prototype.toArray
Environments where this is needed
- node v22, Chrome >= v122: has a bug
- node < v22, Chrome < v122, Safari <= v17.1, Firefox <= v125: not implemented
- all environments lack Iterator.concat, Iterator.zip, Iterator.zipKeyed
Getting started
1npm install --save es-iterator-helpers
Usage/Examples
Using explicit imports:
1const map = require('es-iterator-helpers/Iterator.prototype.map'); 2const toArray = require('es-iterator-helpers/Iterator.prototype.toArray'); 3const assert = require('assert'); 4 5const iterator = [1, 2, 3].values(); 6 7const mapped = map(iterator, (x) => x + 10); 8assert.deepEqual( 9 mapped.next(), 10 { 11 done: false, 12 value: 11, 13 } 14); 15assert.deepEqual( 16 toArray(mapped), 17 [12, 13] 18);
Shim using require:
1require('es-iterator-helpers/auto'); // shim all of the methods 2 3require('es-iterator-helpers/Iterator.prototype.map/auto'); // shim the “map” method
Shim using import syntax:
1import 'es-iterator-helpers/auto'; // shim all of the methods 2 3import 'es-iterator-helpers/Iterator.prototype.map/auto'; // shim the “map” method
Tests
Simply clone the repo, npm install, and run npm test
No vulnerabilities found.
Reason
15 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Reason
no dangerous workflow patterns detected
Reason
no binaries found in the repo
Reason
0 existing vulnerabilities detected
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
security policy file detected
Details
- Info: security policy file detected: github.com/es-shims/.github/SECURITY.md:1
- Info: Found linked content: github.com/es-shims/.github/SECURITY.md:1
- Warn: One or no descriptive hints of disclosure, vulnerability, and/or timelines in security policy
- Info: Found text in security policy: github.com/es-shims/.github/SECURITY.md:1
Reason
Found 1/30 approved changesets -- score normalized to 0
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/node-aught.yml:1
- Warn: no topLevel permission defined: .github/workflows/node-pretest.yml:1
- Warn: no topLevel permission defined: .github/workflows/node-tens.yml:1
- Warn: no topLevel permission defined: .github/workflows/rebase.yml:1
- Warn: no topLevel permission defined: .github/workflows/require-allow-edits.yml:1
- Info: no jobLevel write permissions found
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/require-allow-edits.yml:12: update your workflow using https://app.stepsecurity.io/secureworkflow/es-shims/iterator-helpers/require-allow-edits.yml/main?enable=pin
- Info: 0 out of 1 third-party GitHubAction dependencies pinned
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 1 are checked with a SAST tool
Score
5.4
/10
Last Scanned on 2024-11-25
The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.
Learn More