npm package: @stdlib/assert-has-async-await-support
Description: Detect native async/await support.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
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</details>

# Async/Await Support

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

> Detect native [`async`][mdn-async]/[`await`][mdn-await] support.

<section class="installation">

## Installation

```bash
npm install @stdlib/assert-has-async-await-support
```

</section>

<section class="usage">

## Usage

```javascript
var hasAsyncAwaitSupport = require( '@stdlib/assert-has-async-await-support' );
```

#### hasAsyncAwaitSupport()

Detects if a runtime environment supports ES2017 [`async`][mdn-async]/[`await`][mdn-await].

```javascript
var bool = hasAsyncAwaitSupport();
// returns <boolean>
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   The implementation uses code evaluation, which may be problematic in browser contexts enforcing a strict [content security policy][mdn-csp] (CSP).

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var hasAsyncAwaitSupport = require( '@stdlib/assert-has-async-await-support' );

var bool = hasAsyncAwaitSupport();
if ( bool ) {
    console.log( 'Environment has native async/await support.' );
} else {
    console.log( 'Environment lacks native async/await support.' );
}
```

</section>

<!-- /.examples -->



<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

## See Also

-   <span class="package-name">[`@stdlib/assert-has-async-await-support-cli`][@stdlib/assert-has-async-await-support-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</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">

[@stdlib/assert-has-async-await-support-cli]: https://www.npmjs.com/package/@stdlib/assert-has-async-await-support-cli

[npm-image]: http://img.shields.io/npm/v/@stdlib/assert-has-async-await-support.svg
[npm-url]: https://npmjs.org/package/@stdlib/assert-has-async-await-support

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

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

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

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

[cli-section]: https://github.com/stdlib-js/assert-has-async-await-support#cli
[cli-url]: https://github.com/stdlib-js/assert-has-async-await-support/tree/cli
[@stdlib/assert-has-async-await-support]: https://github.com/stdlib-js/assert-has-async-await-support/tree/main

[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/assert-has-async-await-support/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-has-async-await-support/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-has-async-await-support/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-has-async-await-support/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-has-async-await-support/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-has-async-await-support/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/assert-has-async-await-support/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-has-async-await-support/main/LICENSE

[mdn-async]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function

[mdn-await]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await

[mdn-csp]: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP

</section>

<!-- /.links -->