npm package: @stdlib/symbol-async-iterator
Description: Async iterator symbol.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# AsyncIteratorSymbol

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Async iterator [symbol][mdn-symbol] which specifies the default async iterator for an object.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/symbol-async-iterator
```

</section>

<section class="usage">

## Usage

```javascript
var AsyncIteratorSymbol = require( '@stdlib/symbol-async-iterator' );
```

#### AsyncIteratorSymbol

Async iterator [`symbol`][mdn-symbol] which specifies the default async iterator for an object.

```javascript
var s = typeof AsyncIteratorSymbol;
// e.g., returns 'symbol'
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   The [symbol][mdn-symbol] is only supported in environments which support [symbols][mdn-symbol] and async iterators. In non-supporting environments, the value is `null`.

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var AsyncIteratorSymbol = require( '@stdlib/symbol-async-iterator' );

if ( AsyncIteratorSymbol === null ) {
    console.log( 'Environment does not support Symbol.asyncIterator.' );
} else {
    console.log( 'Environment does support Symbol.asyncIterator.' );
}
```

</section>

<!-- /.examples -->

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<section class="references">

</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/symbol-ctor`][@stdlib/symbol/ctor]</span><span class="delimiter">: </span><span class="description">symbols.</span>
-   <span class="package-name">[`@stdlib/symbol-iterator`][@stdlib/symbol/iterator]</span><span class="delimiter">: </span><span class="description">symbol iterator.</span>

</section>

<!-- /.related -->

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

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<section class="links">

[npm-image]: http://img.shields.io/npm/v/@stdlib/symbol-async-iterator.svg
[npm-url]: https://npmjs.org/package/@stdlib/symbol-async-iterator

[test-image]: https://github.com/stdlib-js/symbol-async-iterator/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/symbol-async-iterator/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/symbol-async-iterator/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/symbol-async-iterator?branch=main

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[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/symbol-async-iterator/tree/deno
[deno-readme]: https://github.com/stdlib-js/symbol-async-iterator/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/symbol-async-iterator/tree/umd
[umd-readme]: https://github.com/stdlib-js/symbol-async-iterator/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/symbol-async-iterator/tree/esm
[esm-readme]: https://github.com/stdlib-js/symbol-async-iterator/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/symbol-async-iterator/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/symbol-async-iterator/main/LICENSE

[mdn-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol

<!-- <related-links> -->

[@stdlib/symbol/ctor]: https://www.npmjs.com/package/@stdlib/symbol-ctor

[@stdlib/symbol/iterator]: https://www.npmjs.com/package/@stdlib/symbol-iterator

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</section>

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