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Gathering detailed insights and metrics for iterate-value

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Gathering detailed insights and metrics for iterate-value

iterate-value - 1.0.2 | npmpackage.info

iterate-value

Iterate any iterable JS value. Works robustly in all environments, all versions.

1.0.2

MIT

JavaScript

8.41 kB

751,210,417 4.5

Installations

npm install iterate-value

Developer Guide

BETA

Typescript

No

Module System

CommonJS, ESM

Node Version

13.6.0

NPM Version

6.13.4 Score

98.2

Supply Chain

87.7

Quality

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

5

Closed

0

Merged

5

Issues

Open

1

Total

3

Closed

2

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

ljharb

Download Statistics

Total Downloads

751,210,417

Last Day

139,319

Last Week

2,237,672

Last Month

9,633,337

Last Year

106,979,730

GitHub Statistics

MIT License

3 Stars

48 Commits

2 Watchers

1 Branches

1 Contributors

Updated on Jun 09, 2024

Bundle Size

28.78 kB

Minified

8.41 kB

Minified + Gzipped

Bundlephobia

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

1.0.2

Package Id

iterate-value@1.0.2

Size

5.74 kB

NPM Version

6.13.4

Node Version

13.6.0

Published on

Jan 18, 2020

Total Downloads

Cumulative downloads

Total Downloads

751,210,417

Last Day

-16.3%

139,319

Compared to previous day

Last Week

-9.6%

2,237,672

Compared to previous week

Last Month

7.9%

9,633,337

Compared to previous month

Last Year

-30.5%

106,979,730

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

es-get-iterator iterate-iterator

Dev Dependencies

@ljharb/eslint-config auto-changelog eslint evalmd for-each has-bigints has-symbols object-inspect safe-publish-latest tape

iterate-value

Iterate any iterable JS value. Works robustly in all environments, all versions.

In modern engines, [...value] or Array.from(value) or for (const item of value) { } are sufficient to iterate an iterable value (an object with a Symbol.iterator method). However, older engines:

may lack Symbol, array spread, or for..of support altogether
may have Symbol.iterator but not implement it on everything it should, like arguments objects
may have Map and Set, but a non-standard name for the iterator-producing method (.iterator or ['@@iterator'], eg) and no syntax to support it
may be old versions of Firefox that produce values until they throw a StopIteration exception, rather than having iteration result objects
may be polyfilled/shimmed/shammed, with es6-shim or core-js or similar

This library attempts to provide an abstraction over all that complexity!

If called with a single value, it will return an array of the yielded values. If also called with a callback function, it will instead call that callback once for each yielded value.

In node v13+, exports is used by the es-get-iterator dependency to provide a lean implementation that lacks all the complexity described above, in combination with the browser field so that bundlers will pick up the proper implementation.

If you are targeting browsers that definitely all have Symbol support, then you can configure your bundler to replace require('has-symbols')() with a literal true, which should allow dead code elimination to reduce the size of the bundled code.

Example

1var iterate = require('iterate-value');
2var assert = require('assert');
3
4assert.deepEqual(iterate('a ????'), ['a', ' ', '????']);
5assert.deepEqual(iterate([1, 2]), [1, 2]);
6assert.deepEqual(iterate(new Set([1, 2])), [1, 2]);
7assert.deepEqual(iterate(new Map([[1, 2], [3, 4]])), [[1, 2], [3, 4]]);
8
9function assertWithCallback(iterable, expected) {
10	var values = [];
11	var callback = function (x) { values.push(x); };
12	iterate(iterable, callback);
13	assert.deepEqual(values, expected);
14}
15assertWithCallback('a ????', ['a', ' ', '????']);
16assertWithCallback([1, 2], [1, 2]);
17assertWithCallback(new Set([1, 2]), [1, 2]);
18assertWithCallback(new Map([[1, 2], [3, 4]]), [[1, 2], [3, 4]]);

Tests

Simply clone the repo, npm install, and run npm test

SAST

Determines if the project uses static code analysis.

Score

4.5

/10

Last Scanned on 2025-06-30

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.

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