# is-generator-function [![Version Badge][2]][1] [![Build Status][3]][4] [![dependency status][5]][6] [![dev dependency status][7]][8] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url] [![npm badge][11]][1] [![browser support][9]][10] Is this a native generator function? ## Example ```js var isGeneratorFunction = require('is-generator-function'); assert(!isGeneratorFunction(function () {})); assert(!isGeneratorFunction(null)); assert(isGeneratorFunction(function* () { yield 42; return Infinity; })); ``` ## Tests Simply clone the repo, `npm install`, and run `npm test` [1]: https://npmjs.org/package/is-generator-function [2]: http://versionbadg.es/ljharb/is-generator-function.svg [3]: https://travis-ci.org/ljharb/is-generator-function.svg [4]: https://travis-ci.org/ljharb/is-generator-function [5]: https://david-dm.org/ljharb/is-generator-function.svg [6]: https://david-dm.org/ljharb/is-generator-function [7]: https://david-dm.org/ljharb/is-generator-function/dev-status.svg [8]: https://david-dm.org/ljharb/is-generator-function#info=devDependencies [9]: https://ci.testling.com/ljharb/is-generator-function.png [10]: https://ci.testling.com/ljharb/is-generator-function [11]: https://nodei.co/npm/is-generator-function.png?downloads=true&stars=true [license-image]: http://img.shields.io/npm/l/is-generator-function.svg [license-url]: LICENSE [downloads-image]: http://img.shields.io/npm/dm/is-generator-function.svg [downloads-url]: http://npm-stat.com/charts.html?package=is-generator-function