webdav/sync/react/cockpit-profinet/node_modules/es-iterator-helpers - 志元云盘

File OriginalPic	EditTime	Size
aos	2025-08-13 14:40:07	16.36 KB
Iterator	2025-08-13 14:51:43	1.86 KB
Iterator.concat	2025-08-13 14:53:33	4.39 KB
Iterator.from	2025-08-13 14:56:19	2.06 KB
Iterator.prototype	2025-08-13 15:20:02	1.02 KB
Iterator.prototype.constructor	2025-08-13 15:31:28	1.1 KB
Iterator.prototype.drop	2025-08-13 16:01:42	3.99 KB
Iterator.prototype.every	2025-08-13 16:11:25	2.63 KB
Iterator.prototype.filter	2025-08-13 16:14:24	3.67 KB
Iterator.prototype.find	2025-08-13 16:21:33	2.63 KB
Iterator.prototype.flatMap	2025-08-13 16:31:01	4.61 KB
Iterator.prototype.forEach	2025-08-13 16:38:59	2.36 KB
Iterator.prototype.map	2025-08-13 16:40:58	3.47 KB
Iterator.prototype.reduce	2025-08-13 16:48:15	2.72 KB
Iterator.prototype.some	2025-08-13 16:49:54	2.62 KB
Iterator.prototype.take	2025-08-13 17:01:09	3.6 KB
Iterator.prototype.toArray	2025-08-13 17:02:47	1.87 KB
Iterator.zip	2025-08-13 17:04:06	4.52 KB
Iterator.zipKeyed	2025-08-13 17:08:10	5.08 KB
IteratorHelperPrototype	2025-08-13 17:10:30	1.77 KB
test	2025-08-13 17:19:42	92.79 KB
WrapForValidIteratorPrototype	2025-08-13 17:27:51	1.41 KB
auto.js	2025-08-08 09:44:27	36 B
CHANGELOG.md	2025-08-08 09:44:27	16.35 KB
index.json	2025-08-08 09:44:27	472 B
LICENSE	2025-08-08 09:44:27	1.05 KB
package.json	2025-08-08 09:44:27	9.48 KB
README.md	2025-08-08 09:44:27	5.11 KB
shim.js	2025-08-08 09:44:27	1.56 KB

# es-iterator-helpers <sup>[![Version Badge][npm-version-svg]][package-url]</sup>

[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]

[![npm badge][npm-badge-png]][package-url]

An ESnext spec-compliant sync iterator helpers shim/polyfill/replacement that works as far down as ES3.

This package implements the [es-shim API](https://github.com/es-shims/api) “multi” interface. It works in an ES3-supported environment and complies with the [iterator helpers spec](https://tc39.es/proposal-iterator-helpers/) and the [iterator sequencing spec](https://tc39.es/proposal-iterator-sequencing/).

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

- [`Iterator` constructor](https://tc39.es/proposal-iterator-helpers/#sec-iterator-constructor)
 - [`Iterator.prototype`](https://tc39.es/proposal-iterator-helpers/#sec-iterator.prototype)
 - [`Iterator.concat`](https://tc39.es/proposal-iterator-sequencing/)
 - [`Iterator.from`](https://tc39.es/proposal-iterator-helpers/#sec-iterator.from)
 - [`Iterator.zip`](https://tc39.es/proposal-joint-iteration/#sec-iterator.zip)
 - [`Iterator.zipKeyed`](https://tc39.es/proposal-joint-iteration/#sec-iterator.zipkeyed)
 - [`Iterator.prototype.constructor`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.constructor)
 - [`Iterator.prototype.drop`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.drop)
 - [`Iterator.prototype.every`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.every)
 - [`Iterator.prototype.filter`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.filter)
 - [`Iterator.prototype.find`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.find)
 - [`Iterator.prototype.flatMap`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.flatmap)
 - [`Iterator.prototype.forEach`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.foreach)
 - [`Iterator.prototype.map`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.map)
 - [`Iterator.prototype.reduce`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.reduce)
 - [`Iterator.prototype.some`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.some)
 - [`Iterator.prototype.take`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.take)
 - [`Iterator.prototype.toArray`](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.toarray)

## Environments where this is needed

- node v22, Chrome >= v122: has a [bug](https://issues.chromium.org/issues/336839115)
 - node < v22, Chrome < v122, Safari <= v17.1, Firefox <= v125: not implemented
 - all environments lack Iterator.concat, Iterator.zip, Iterator.zipKeyed

## Getting started

```sh
npm install --save es-iterator-helpers
```

## Usage/Examples

Using explicit imports:

```js
const map = require('es-iterator-helpers/Iterator.prototype.map');
const toArray = require('es-iterator-helpers/Iterator.prototype.toArray');
const assert = require('assert');

const iterator = [1, 2, 3].values();

const mapped = map(iterator, (x) => x + 10);
assert.deepEqual(
	mapped.next(),
    {
        done: false,
        value: 11,
    }
);
assert.deepEqual(
    toArray(mapped),
    [12, 13]
);
```

Shim using `require`:

```js
require('es-iterator-helpers/auto'); // shim all of the methods

require('es-iterator-helpers/Iterator.prototype.map/auto'); // shim the “map” method
```

Shim using `import` syntax:

[](#preventEval)
```js
import 'es-iterator-helpers/auto'; // shim all of the methods

import 'es-iterator-helpers/Iterator.prototype.map/auto'; // shim the “map” method
```

## Tests
Simply clone the repo, `npm install`, and run `npm test`

[package-url]: https://npmjs.org/package/es-iterator-helpers
[npm-version-svg]: https://versionbadg.es/es-shims/iterator-helpers.svg
[deps-svg]: https://david-dm.org/es-shims/iterator-helpers.svg
[deps-url]: https://david-dm.org/es-shims/iterator-helpers
[dev-deps-svg]: https://david-dm.org/es-shims/iterator-helpers/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/iterator-helpers#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/es-iterator-helpers.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/es-iterator-helpers.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/es-iterator-helpers.svg
[downloads-url]: https://npm-stat.com/charts.html?package=es-iterator-helpers
[codecov-image]: https://codecov.io/gh/es-shims/iterator-helpers/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/es-shims/iterator-helpers/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/iterator-helpers
[actions-url]: https://github.com/es-shims/iterator-helpers/actions

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