# is-extglob [](https://www.npmjs.com/package/is-extglob) [](https://npmjs.org/package/is-extglob) [](https://travis-ci.org/jonschlinkert/is-extglob)
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> Returns true if a string has an extglob.
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install --save is-extglob
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```
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## Usage
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```js
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var isExtglob = require('is-extglob');
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```
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**True**
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```js
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isExtglob('?(abc)');
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isExtglob('@(abc)');
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isExtglob('!(abc)');
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isExtglob('*(abc)');
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isExtglob('+(abc)');
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```
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**False**
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Escaped extglobs:
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```js
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isExtglob('\\?(abc)');
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isExtglob('\\@(abc)');
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isExtglob('\\!(abc)');
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isExtglob('\\*(abc)');
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isExtglob('\\+(abc)');
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```
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Everything else...
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```js
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isExtglob('foo.js');
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isExtglob('!foo.js');
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isExtglob('*.js');
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isExtglob('**/abc.js');
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isExtglob('abc/*.js');
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isExtglob('abc/(aaa|bbb).js');
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isExtglob('abc/[a-z].js');
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isExtglob('abc/{a,b}.js');
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isExtglob('abc/?.js');
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isExtglob('abc.js');
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isExtglob('abc/def/ghi.js');
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```
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## History
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**v2.0**
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Adds support for escaping. Escaped exglobs no longer return true.
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## About
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### Related projects
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* [has-glob](https://www.npmjs.com/package/has-glob): Returns `true` if an array has a glob pattern. | [homepage](https://github.com/jonschlinkert/has-glob "Returns `true` if an array has a glob pattern.")
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* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet")
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* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
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### Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
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### Building docs
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_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
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To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install -g verb verb-generate-readme && verb
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```
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### Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && npm test
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```
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### Author
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**Jon Schlinkert**
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* [github/jonschlinkert](https://github.com/jonschlinkert)
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* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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### License
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Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/is-extglob/blob/master/LICENSE).
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***
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_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._
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