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  1. # is-async-function <sup>[![Version Badge][2]][1]</sup>
  2. [![github actions][actions-image]][actions-url]
  3. [![coverage][codecov-image]][codecov-url]
  4. [![dependency status][5]][6]
  5. [![dev dependency status][7]][8]
  6. [![License][license-image]][license-url]
  7. [![Downloads][downloads-image]][downloads-url]
  8. [![npm badge][11]][1]
  9. Is this a native `async function`?
  10. ## Example
  11. ```js
  12. var isAsyncFunction = require('is-async-function');
  13. assert(!isAsyncFunction(function () {}));
  14. assert(!isAsyncFunction(null));
  15. assert(!isAsyncFunction(function* () { yield 42; return Infinity; }));
  16. assert(isAsyncFunction(async function () {}));
  17. ```
  18. ## Tests
  19. Simply clone the repo, `npm install`, and run `npm test`
  20. [1]: https://npmjs.org/package/is-async-function
  21. [2]: https://versionbadg.es/inspect-js/is-async-function.svg
  22. [5]: https://david-dm.org/inspect-js/is-async-function.svg
  23. [6]: https://david-dm.org/inspect-js/is-async-function
  24. [7]: https://david-dm.org/inspect-js/is-async-function/dev-status.svg
  25. [8]: https://david-dm.org/inspect-js/is-async-function#info=devDependencies
  26. [11]: https://nodei.co/npm/is-async-function.png?downloads=true&stars=true
  27. [license-image]: https://img.shields.io/npm/l/is-async-function.svg
  28. [license-url]: LICENSE
  29. [downloads-image]: https://img.shields.io/npm/dm/is-async-function.svg
  30. [downloads-url]: https://npm-stat.com/charts.html?package=is-async-function
  31. [codecov-image]: https://codecov.io/gh/inspect-js/is-async-function/branch/main/graphs/badge.svg
  32. [codecov-url]: https://app.codecov.io/gh/inspect-js/is-async-function/
  33. [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-async-function
  34. [actions-url]: https://github.com/inspect-js/is-async-function/actions