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# is-extglob [](https://www.npmjs.com/package/is-extglob) [](https://npmjs.org/package/is-extglob) [](https://travis-ci.org/jonschlinkert/is-extglob) > Returns true if a string has an extglob. ## Install Install with [npm](https://www.npmjs.com/): ```sh $ npm install --save is-extglob ``` ## Usage ```js var isExtglob = require('is-extglob'); ``` **True** ```js isExtglob('?(abc)'); isExtglob('@(abc)'); isExtglob('!(abc)'); isExtglob('*(abc)'); isExtglob('+(abc)'); ``` **False** Escaped extglobs: ```js isExtglob('\\?(abc)'); isExtglob('\\@(abc)'); isExtglob('\\!(abc)'); isExtglob('\\*(abc)'); isExtglob('\\+(abc)'); ``` Everything else... ```js isExtglob('foo.js'); isExtglob('!foo.js'); isExtglob('*.js'); isExtglob('**/abc.js'); isExtglob('abc/*.js'); isExtglob('abc/(aaa|bbb).js'); isExtglob('abc/[a-z].js'); isExtglob('abc/{a,b}.js'); isExtglob('abc/?.js'); isExtglob('abc.js'); isExtglob('abc/def/ghi.js'); ``` ## History **v2.0** Adds support for escaping. Escaped exglobs no longer return true. ## About ### Related projects * [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.") * [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") * [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.") ### Contributing Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). ### Building docs _(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).)_ To generate the readme and API documentation with [verb](https://github.com/verbose/verb): ```sh $ npm install -g verb verb-generate-readme && verb ``` ### Running tests Install dev dependencies: ```sh $ npm install -d && npm test ``` ### Author **Jon Schlinkert** * [github/jonschlinkert](https://github.com/jonschlinkert) * [twitter/jonschlinkert](http://twitter.com/jonschlinkert) ### License Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert). Released under the [MIT license](https://github.com/jonschlinkert/is-extglob/blob/master/LICENSE). *** _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._