# is-async-function-x

> Determine if a function is a native aync function.

Latest version **2.1.2** (published 2019-08-28) · MIT license · 0 weekly downloads

## Install

```sh
npm install is-async-function-x
pnpm add is-async-function-x
yarn add is-async-function-x
bun add is-async-function-x
```

## Health

**Score 20/100 (F)** — status: abandoned.

Positive: esm support; no vulnerabilities.

Warnings: low downloads; no types.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 2.1.2 |
| Published | 2019-08-28 |
| First published | 2017-03-29 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | ESM + CommonJS |
| Node | >=8.11.4 |
| Dependencies | 7 |
| Unpacked size | 196.1 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Author | Graham Fairweather |
| Maintainers | xotic750 |
| Keywords | isAsyncFunction, module, javascript, nodejs, browser |

## Links

- npm: https://www.npmjs.com/package/is-async-function-x
- Repository: https://github.com/Xotic750/is-async-function-x
- Issues: https://github.com/Xotic750/is-async-function-x/issues
- npm.io page: https://npm.io/package/is-async-function-x

## Dependencies (7)

- [attempt-x](https://npm.io/package/attempt-x.md) ^2.1.2
- [to-string-tag-x](https://npm.io/package/to-string-tag-x.md) ^2.1.2
- [normalize-space-x](https://npm.io/package/normalize-space-x.md) ^4.1.2
- [get-prototype-of-x](https://npm.io/package/get-prototype-of-x.md) ^2.1.2
- [replace-comments-x](https://npm.io/package/replace-comments-x.md) ^3.1.2
- [simple-methodize-x](https://npm.io/package/simple-methodize-x.md) ^1.0.4
- [has-to-string-tag-x](https://npm.io/package/has-to-string-tag-x.md) ^2.1.2

## Alternatives

- [@opentelemetry/exporter-zipkin](https://npm.io/package/@opentelemetry/exporter-zipkin.md) — 14.8M weekly downloads
- [pusher-js](https://npm.io/package/pusher-js.md) — 2.0M weekly downloads
- [browserify](https://npm.io/package/browserify.md) — 1.7M weekly downloads
- [sqs-consumer](https://npm.io/package/sqs-consumer.md) — 1.7M weekly downloads
- [@sanity/eventsource](https://npm.io/package/@sanity/eventsource.md) — 930.8K weekly downloads

## Recent versions

- 2.1.2 (latest) — 2019-08-28
- 2.1.1 — 2019-08-20
- 2.1.0 — 2019-08-14
- 2.0.13 — 2019-08-05
- 2.0.12 — 2019-07-31
- 2.0.11 — 2019-07-27
- 2.0.10 — 2019-07-27
- 2.0.9 — 2019-07-26
- 2.0.8 — 2019-07-25
- 2.0.7 — 2019-07-24
- 2.0.6 — 2019-07-24
- 2.0.5 — 2019-07-22
- 2.0.4 — 2019-07-21
- 2.0.3 — 2019-07-19
- 2.0.2 — 2019-07-18
- … 11 more at https://npm.io/package/is-async-function-x/versions

## README

<a
  href="https://travis-ci.org/Xotic750/is-async-function-x"
  title="Travis status">
<img
  src="https://travis-ci.org/Xotic750/is-async-function-x.svg?branch=master"
  alt="Travis status" height="18">
</a>
<a
  href="https://david-dm.org/Xotic750/is-async-function-x"
  title="Dependency status">
<img src="https://david-dm.org/Xotic750/is-async-function-x/status.svg"
  alt="Dependency status" height="18"/>
</a>
<a
  href="https://david-dm.org/Xotic750/is-async-function-x?type=dev"
  title="devDependency status">
<img src="https://david-dm.org/Xotic750/is-async-function-x/dev-status.svg"
  alt="devDependency status" height="18"/>
</a>
<a
  href="https://badge.fury.io/js/is-async-function-x"
  title="npm version">
<img src="https://badge.fury.io/js/is-async-function-x.svg"
  alt="npm version" height="18">
</a>
<a
  href="https://www.jsdelivr.com/package/npm/is-async-function-x"
  title="jsDelivr hits">
<img src="https://data.jsdelivr.com/v1/package/npm/is-async-function-x/badge?style=rounded"
  alt="jsDelivr hits" height="18">
</a>
<a
  href="https://bettercodehub.com/results/Xotic750/is-async-function-x"
  title="bettercodehub score">
<img src="https://bettercodehub.com/edge/badge/Xotic750/is-async-function-x?branch=master"
  alt="bettercodehub score" height="18">
</a>
<a
  href="https://coveralls.io/github/Xotic750/is-async-function-x?branch=master"
  title="Coverage Status">
<img src="https://coveralls.io/repos/github/Xotic750/is-async-function-x/badge.svg?branch=master"
  alt="Coverage Status" height="18">
</a>

<a name="module_is-async-function-x"></a>

## is-async-function-x

Determine if a function is a native aync function.

**See**: [14.6 Async Function Definitions](https://tc39.github.io/ecma262/#sec-async-function-definitions)  

<a name="exp_module_is-async-function-x--module.exports"></a>

### `module.exports(fn)` ⇒ <code>boolean</code> ⏏

Checks if `value` is classified as an `Async Function` object.

**Kind**: Exported function  
**Returns**: <code>boolean</code> - Returns `true` if `value` is correctly classified,
else `false`.

| Param | Type            | Description         |
| ----- | --------------- | ------------------- |
| fn    | <code>\*</code> | The value to check. |

**Example**

```js
import isAsyncFunction from 'is--async-function-x';

isAsyncFunction(); // false
isAsyncFunction(Number.MIN_VALUE); // false
isAsyncFunction('abc'); // false
isAsyncFunction(true); // false
isAsyncFunction({ name: 'abc' }); // false
isAsyncFunction(function () {}); // false
isAsyncFunction(new Function ()); // false
isAsyncFunction(function* test1() {}); // false
isAsyncFunction(function test2(a, b) {}); // false
isAsyncFunction(class Test {}); // false
isAsyncFunction((x, y) => {return this;}); // false
isAsyncFunction(async functin() {}); // true
```

---
_Source: https://npm.io/package/is-async-function-x · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._
