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# is-valid-glob [](https://www.npmjs.com/package/is-valid-glob) [](https://npmjs.org/package/is-valid-glob) [](https://npmjs.org/package/is-valid-glob) [](https://travis-ci.org/jonschlinkert/is-valid-glob) > Return true if a value is a valid glob pattern or patterns. ## Install Install with [npm](https://www.npmjs.com/): ```sh $ npm install --save is-valid-glob ``` ## Usage This really just checks to make sure that a pattern is either a string or array, and if it's an array it's either empty or consists of only strings. ```js var isValidGlob = require('is-valid-glob'); isValidGlob('foo/*.js'); //=> true ``` **Valid patterns** ```js isValidGlob('a'); isValidGlob('a.js'); isValidGlob('*.js'); isValidGlob(['a', 'b']); //=> all true ``` **Invalid patterns** ```js isValidGlob(); isValidGlob(''); isValidGlob(null); isValidGlob(undefined); isValidGlob(new Buffer('foo')); isValidGlob(['foo', [[]]]); isValidGlob(['foo', [['bar']]]); isValidGlob(['foo', {}]); isValidGlob({}); isValidGlob([]); isValidGlob(['']); //=> all false ``` ## About ### Related projects * [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/micromatch/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.") * [vinyl-fs](https://www.npmjs.com/package/vinyl-fs): Vinyl adapter for the file system | [homepage](http://github.com/wearefractal/vinyl-fs "Vinyl adapter for the file system") * [vinyl](https://www.npmjs.com/package/vinyl): Virtual file format. | [homepage](https://github.com/gulpjs/vinyl#readme "Virtual file format.") ### Contributing Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). ### Contributors | **Commits** | **Contributor** | | --- | --- | | 9 | [jonschlinkert](https://github.com/jonschlinkert) | | 2 | [contra](https://github.com/contra) | ### Building docs _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ To generate the readme, run the following command: ```sh $ npm install -g verbose/verb#dev verb-generate-readme && verb ``` ### Running tests Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command: ```sh $ npm install && npm test ``` ### Author **Jon Schlinkert** * [github/jonschlinkert](https://github.com/jonschlinkert) * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) ### License Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). Released under the [MIT License](LICENSE). *** _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 21, 2017._